refact by claude

Reviewed-on: #13

.luacheckrc

@@ -3,19 +3,36 @@
 
 globals = {
   "Util",
-  "DesitionManager",
+  "Decision",
-  "ScreenManager",
+  "Situation",
+  "Screen",
+  "Sprite",
   "UI",
   "Print",
   "Input",
   "Audio",
+  "Config",
   "Context",
+  "Meter",
+  "Minigame",
+  "Window",
+  "SplashWindow",
+  "IntroWindow",
+  "MenuWindow",
+  "GameWindow",
+  "PopupWindow",
+  "ConfigurationWindow",
+  "AudioTestWindow",
+  "MinigameButtonMashWindow",
+  "MinigameRhythmWindow",
+  "MinigameDDRWindow",
   "mset",
   "mget",
   "btnp",
   "keyp",
   "music",
   "sfx",
+  "spr",
   "rect",
   "rectb",
   "circ",
@@ -30,7 +47,7 @@ globals = {
   "exit",
   "trace",
   "index_menu",
-  "MapManager",
+  "Map",
   "map",
 }
 

GEMINI.md

@@ -55,7 +55,7 @@ Based on the analysis of `impostor.lua`, the following regularities and conventi
 
 ---
 
-# Impostor Minigames Documentation
+# Impostor Minigame Documentation
 
 This document provides comprehensive documentation for all three minigames implemented in the Impostor game: Button Mash, Rhythm, and DDR (Dance Dance Revolution).
 
@@ -74,7 +74,7 @@ This document provides comprehensive documentation for all three minigames imple
 
 The Impostor game includes three interactive minigames that can be triggered during gameplay. Each minigame presents a unique challenge that the player must complete to progress. All minigames feature:
 
-- **Overlay rendering** - Minigames render over the current game window
+- **Overlay rendering** - Minigame render over the current game window
 - **Progress tracking** - Visual indicators show completion status
 - **Return mechanism** - Automatic return to the calling window upon completion
 - **Visual feedback** - Button presses and hits are visually indicated

Makefile

@@ -58,8 +58,8 @@ export: build
 	@ls -lh $(PROJECT)-$(VERSION).* $(PROJECT).tic $(PROJECT).html.zip 2>/dev/null || true
 
 watch:
-	make build
+	$(MAKE) build
-	fswatch -o $(SRC_DIR) $(ORDER) assets | while read; do make build; done
+	fswatch -o $(SRC_DIR) $(ORDER) assets | while read; do $(MAKE) build; done
 
 import_assets: $(OUTPUT)
 	@TIC_CMD="load $(OUTPUT) &"; \
@@ -85,6 +85,7 @@ lint:
 	@touch $(LINT_TMP_LUA)
 	@line=1; \
 	while IFS= read -r f || [ -n "$$f" ]; do \
+	    f=$$(printf '%s' "$$f" | tr -d '\r'); \
 	    [ -z "$$f" ] && continue; \
 	    before=$$(wc -l < $(LINT_TMP_LUA)); \
 	    cat "$(SRC_DIR)/$$f" >> $(LINT_TMP_LUA); \
@@ -203,12 +204,20 @@ install_precommit_hook:
 	@chmod +x .git/hooks/pre-commit
 	@echo "Pre-commit hook installed successfully."
 
-.PHONY: all build export watch import_assets export_assets clean lint ci-version ci-export ci-upload ci-update install_precommit_hook
+docs: build
+	@echo "==> Checking for ldoc..."
+	@if ! command -v ldoc &> /dev/null; then \
+		echo "ldoc not found, attempting to install with luarocks..."; \
+		if command -v luarocks &> /dev/null; then \
+			luarocks install ldoc; \
+		else \
+			echo "Error: luarocks not found. Please install luarocks and then ldoc manually."; \
+			exit 1; \
+		fi; \
+	fi
+	@echo "==> Running ldoc..."
+	@ldoc ${OUTPUT} -d docs
+	@echo "==> Documentation generated."
+
+.PHONY: all build export watch import_assets export_assets clean lint ci-version ci-export ci-upload ci-update install_precommit_hook docs
 
-#-- <WAVES>
-#-- 000:224578acdeeeeddcba95434567653100
-#-- </WAVES>
-#
-#-- <SFX>
-#-- 000:000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000500000000000
-#-- </SFX>

impostor.inc

@@ -1,17 +1,29 @@
 meta/meta.header.lua
-init/init.modules.lua
+init/init.module.lua
 init/init.config.lua
+init/init.minigame.lua
+init/init.meter.lua
+init/init.context.lua
 system/system.util.lua
-init/init.windows.lua
+system/system.print.lua
-desition/desition.manager.lua
+system/system.input.lua
-desition/desition.go_to_home.lua
+system/system.ui.lua
-desition/desition.go_to_toilet.lua
+audio/audio.manager.lua
-desition/desition.go_to_walking_to_office.lua
+audio/audio.songs.lua
-desition/desition.go_to_office.lua
+sprite/sprite.manager.lua
-desition/desition.go_to_walking_to_home.lua
+sprite/sprite.norman.lua
-desition/desition.play_button_mash.lua
+situation/situation.manager.lua
-desition/desition.play_rhythm.lua
+situation/situation.drink_coffee.lua
-desition/desition.play_ddr.lua
+decision/decision.manager.lua
+decision/decision.have_a_coffee.lua
+decision/decision.go_to_home.lua
+decision/decision.go_to_toilet.lua
+decision/decision.go_to_walking_to_office.lua
+decision/decision.go_to_office.lua
+decision/decision.go_to_walking_to_home.lua
+decision/decision.play_button_mash.lua
+decision/decision.play_rhythm.lua
+decision/decision.play_ddr.lua
 map/map.manager.lua
 map/map.bedroom.lua
 screen/screen.manager.lua
@@ -20,12 +32,8 @@ screen/screen.toilet.lua
 screen/screen.walking_to_office.lua
 screen/screen.office.lua
 screen/screen.walking_to_home.lua
-init/init.context.lua
+window/window.manager.lua
-data/data.songs.lua
+window/window.register.lua
-system/system.print.lua
-system/system.input.lua
-system/system.audio.lua
-system/system.ui.lua
 window/window.splash.lua
 window/window.intro.lua
 window/window.menu.lua

inc/audio/audio.manager.lua

@@ -1,14 +1,28 @@
+--- Stops current music.
 function Audio.music_stop() music() end
+--- Plays main menu music.
 function Audio.music_play_mainmenu() end
+--- Plays waking up music.
 function Audio.music_play_wakingup() end
+--- Plays room morning music.
 function Audio.music_play_room_morning() end
+--- Plays room street 1 music.
 function Audio.music_play_room_street_1() end
+--- Plays room street 2 music.
 function Audio.music_play_room_street_2() end
+--- Plays room music.
+-- TODO: function name is incomplete, determine the correct room identifier
 function Audio.music_play_room_() end
+--- Plays room work music.
 function Audio.music_play_room_work() end
 
+--- Plays select sound effect.
 function Audio.sfx_select() sfx(17, 'C-7', 30) end
+--- Plays deselect sound effect.
 function Audio.sfx_deselect() sfx(18, 'C-7', 30) end
+--- Plays beep sound effect.
 function Audio.sfx_beep() sfx(19, 'C-6', 30) end
+--- Plays success sound effect.
 function Audio.sfx_success() sfx(16, 'C-7', 60) end
+--- Plays bloop sound effect.
 function Audio.sfx_bloop() sfx(21, 'C-3', 60) end

inc/audio/audio.songs.lua

@@ -107,8 +107,11 @@ Songs = {
   }
 }
 
--- Helper function to calculate frame from beat
+--- Converts beats to frames.
--- Usage: frame_from_beat(beat_number, bpm, fps)
+-- @param beat number The beat number.
+-- @param bpm number Beats per minute.
+-- @param[opt] fps number Frames per second (default: 60).
+-- @return number The corresponding frame number.
 function frame_from_beat(beat, bpm, fps)
   fps = fps or 60
   local seconds_per_beat = 60 / bpm
@@ -116,8 +119,11 @@ function frame_from_beat(beat, bpm, fps)
   return math.floor(beat * frames_per_beat)
 end
 
--- Helper function to convert simple beat notation to frame pattern
+--- Converts beat notation to frame pattern.
--- Usage: beats_to_pattern({{1, "left"}, {2, "down"}}, 120)
+-- @param beats table A table of beat data, e.g., {{1, "left"}, {2, "down"}}.
+-- @param bpm number Beats per minute.
+-- @param[opt] fps number Frames per second (default: 60).
+-- @return table The generated pattern.
 function beats_to_pattern(beats, bpm, fps)
   fps = fps or 60
   local pattern = {}

inc/decision/decision.go_to_home.lua

@@ -1,8 +1,7 @@
-DesitionManager.register({
+Decision.register({
   id = "go_to_home",
   label = "Go to Home",
   handle = function()
     Util.go_to_screen_by_id("home")
   end,
-  condition = function() return true end
 })

inc/decision/decision.go_to_office.lua

@@ -1,8 +1,7 @@
-DesitionManager.register({
+Decision.register({
   id = "go_to_office",
   label = "Go to Office",
   handle = function()
     Util.go_to_screen_by_id("office")
   end,
-  condition = function() return true end
 })

inc/decision/decision.go_to_toilet.lua

@@ -1,8 +1,7 @@
-DesitionManager.register({
+Decision.register({
   id = "go_to_toilet",
   label = "Go to Toilet",
   handle = function()
     Util.go_to_screen_by_id("toilet")
   end,
-  condition = function() return true end
 })

inc/decision/decision.go_to_walking_to_home.lua

@@ -1,8 +1,7 @@
-DesitionManager.register({
+Decision.register({
   id = "go_to_walking_to_home",
   label = "Walking to home",
   handle = function()
     Util.go_to_screen_by_id("walking_to_home")
   end,
-  condition = function() return true end
 })

inc/decision/decision.go_to_walking_to_office.lua

@@ -1,8 +1,7 @@
-DesitionManager.register({
+Decision.register({
   id = "go_to_walking_to_office",
   label = "Walking to office",
   handle = function()
     Util.go_to_screen_by_id("walking_to_office")
   end,
-  condition = function() return true end
 })

inc/decision/decision.have_a_coffee.lua

@@ -0,0 +1,8 @@
+Decision.register({
+  id = "have_a_coffee",
+  label = "Have a Coffee",
+  handle = function()
+    local new_situation_id = Situation.apply("drink_coffee", Context.game.current_screen)
+    Context.game.current_situation = new_situation_id
+  end,
+})

inc/decision/decision.manager.lua

@@ -0,0 +1,69 @@
+local _decisions = {}
+
+--- Registers a decision definition.
+-- @param decision table The decision data table.
+function Decision.register(decision)
+  if not decision or not decision.id then
+    PopupWindow.show({"Error: Invalid decision object registered (missing id)!"})
+    return
+  end
+  if not decision.label then
+    PopupWindow.show({"Error: Invalid decision object registered (missing label)!"})
+    return
+  end
+
+  if not decision.condition then
+    decision.condition = function() return true end
+  end
+  if not decision.handle then
+    decision.handle = function() end
+  end
+  if _decisions[decision.id] then
+    trace("Warning: Overwriting decision with id: " .. decision.id)
+  end
+  _decisions[decision.id] = decision
+end
+
+--- Gets a decision by ID.
+-- @param id string The ID of the decision.
+-- @return table The decision table or nil.
+function Decision.get_by_id(id)
+  return _decisions[id]
+end
+
+--- Gets all registered decisions.
+-- @return table A table of all registered decisions.
+function Decision.get_all()
+  return _decisions
+end
+
+--- Gets decision objects based on a screen's data.
+-- @param screen_data table The data for the screen, containing a 'decisions' field (list of decision IDs).
+-- @return table A table containing decision objects relevant to the screen.
+function Decision.get_for_screen(screen_data)
+  if not screen_data or not screen_data.decisions then
+    return {}
+  end
+
+  local screen_decisions = {}
+  for _, decision_id in ipairs(screen_data.decisions) do
+    local decision = Decision.get_by_id(decision_id)
+    if decision then
+      table.insert(screen_decisions, decision)
+    end
+  end
+  return screen_decisions
+end
+
+--- Filters a list of decision objects based on their condition function.
+-- @param decisions_list table A table of decision objects.
+-- @return table A new table containing only the decisions for which condition() is true.
+function Decision.filter_available(decisions_list)
+  local available = {}
+  for _, decision in ipairs(decisions_list) do
+    if decision and decision.condition() then
+      table.insert(available, decision)
+    end
+  end
+  return available
+end

inc/decision/decision.play_button_mash.lua

@@ -0,0 +1,5 @@
+Decision.register({
+  id = "play_button_mash",
+  label = "Play Button Mash",
+  handle = function() Meter.hide() MinigameButtonMashWindow.start("game") end,
+})

inc/decision/decision.play_ddr.lua

@@ -0,0 +1,5 @@
+Decision.register({
+  id = "play_ddr",
+  label = "Play DDR (Random)",
+  handle = function() Meter.hide() MinigameDDRWindow.start("game", nil) end,
+})

inc/decision/decision.play_rhythm.lua

@@ -0,0 +1,5 @@
+Decision.register({
+  id = "play_rhythm",
+  label = "Play Rhythm Game",
+  handle = function() Meter.hide() MinigameRhythmWindow.start("game") end,
+})

inc/desition/desition.manager.lua

@@ -1,31 +0,0 @@
-local _desitions = {}
-
-function DesitionManager.register(desition)
-  if not desition or not desition.id then
-    PopupWindow.show({"Error: Invalid desition object registered (missing id)!"})
-    return
-  end
-  if not desition.label then
-    PopupWindow.show({"Error: Invalid desition object registered (missing label)!"})
-    return
-  end
-
-  if not desition.condition then
-    desition.condition = function() return true end
-  end
-  if not desition.handle then
-    desition.handle = function() end
-  end
-  if _desitions[desition.id] then
-    trace("Warning: Overwriting desition with id: " .. desition.id)
-  end
-  _desitions[desition.id] = desition
-end
-
-function DesitionManager.get(id)
-  return _desitions[id]
-end
-
-function DesitionManager.get_all()
-  return _desitions
-end

inc/desition/desition.play_button_mash.lua

@@ -1,6 +0,0 @@
-DesitionManager.register({
-  id = "play_button_mash",
-  label = "Play Button Mash",
-  handle = function() MinigameButtonMashWindow.start(WINDOW_GAME) end,
-  condition = function() return true end
-})

inc/desition/desition.play_ddr.lua

@@ -1,6 +0,0 @@
-DesitionManager.register({
-  id = "play_ddr",
-  label = "Play DDR (Random)",
-  handle = function() MinigameDDRWindow.start(WINDOW_GAME, nil) end,
-  condition = function() return true end
-})

inc/desition/desition.play_rhythm.lua

@@ -1,6 +0,0 @@
-DesitionManager.register({
-  id = "play_rhythm",
-  label = "Play Rhythm Game",
-  handle = function() MinigameRhythmWindow.start(WINDOW_GAME) end,
-  condition = function() return true end
-})

inc/init/init.config.lua

@@ -1,49 +1,54 @@
-local DEFAULT_CONFIG = {
+Config = {}
+
+function Config.initial_data()
+  return {
     screen = {
       width = 240,
       height = 136
     },
     colors = {
-    black = 0,
+      black = 2,
       light_grey = 13,
       dark_grey = 14,
-    green = 6,
+      red = 0,
-    item = 12
+      green = 7,
-  },
+      blue = 9,
-  player = {
+      white = 12,
-    sprite_id = 1
+      item = 12,
+      meter_bg = 12
     },
     timing = {
       splash_duration = 120
     }
   }
+end
 
-local Config = {
+--- Restores default configuration settings.
-  screen = DEFAULT_CONFIG.screen,
+function Config.reset()
-  colors = DEFAULT_CONFIG.colors,
+  local initial = Config.initial_data()
-  player = DEFAULT_CONFIG.player,
+  Config.screen = initial.screen
-  timing = DEFAULT_CONFIG.timing,
+  Config.colors = initial.colors
-}
+  Config.timing = initial.timing
+end
 
 local CONFIG_SAVE_BANK = 7
 local CONFIG_MAGIC_VALUE_ADDRESS = 2
 local CONFIG_SPLASH_DURATION_ADDRESS = 3
 local CONFIG_MAGIC_VALUE = 0xDE
 
+--- Saves the current configuration.
 function Config.save()
   mset(CONFIG_MAGIC_VALUE, CONFIG_MAGIC_VALUE_ADDRESS, CONFIG_SAVE_BANK)
+  mset(Config.timing.splash_duration, CONFIG_SPLASH_DURATION_ADDRESS, CONFIG_SAVE_BANK)
 end
 
+--- Loads saved configuration.
 function Config.load()
   if mget(CONFIG_MAGIC_VALUE_ADDRESS, CONFIG_SAVE_BANK) == CONFIG_MAGIC_VALUE then
     Config.timing.splash_duration = mget(CONFIG_SPLASH_DURATION_ADDRESS, CONFIG_SAVE_BANK)
   else
-    Config.restore_defaults()
+    Config.reset()
   end
 end
 
-function Config.restore_defaults()
-  Config.timing.splash_duration = DEFAULT_CONFIG.timing.splash_duration
-end
-
 Config.load()

inc/init/init.context.lua

@@ -2,100 +2,67 @@ local SAVE_GAME_BANK = 6
 local SAVE_GAME_MAGIC_VALUE_ADDRESS = 0
 local SAVE_GAME_MAGIC_VALUE = 0xCA
 
-local SAVE_GAME_CURRENT_SCREEN_ADDRESS = 6
+--- Global game context.
+Context = {}
 
-local function get_initial_data()
+--- Gets initial data for Context.
+-- @return table Initial context data.
+function Context.initial_data()
   return {
-    active_window = WINDOW_SPLASH,
+    current_menu_item = 1,
-    intro = {
-      y = Config.screen.height,
-      speed = 0.5,
-      text = [[Norman Reds’ everyday life
-seems ordinary: work,
-meetings, coffee, and
-endless notifications.
-But beneath the surface
-— within him, or around
-him — something is
-constantly building, and
-it soon becomes clear
-that there is more going
-on than meets the eye.]]
-    },
-    current_screen = 1,
     splash_timer = Config.timing.splash_duration,
     popup = {
       show = false,
       content = {}
     },
-    player = {
-      sprite_id = Config.player.sprite_id
-    },
-    ground = {
-      x = 0,
-      y = Config.screen.height,
-      w = Config.screen.width,
-      h = 8
-    },
-    menu_items = {},
-    selected_menu_item = 1,
-    selected_desition_index = 1,
     game_in_progress = false,
-    screens = {}
+    minigame_ddr = Minigame.get_default_ddr(),
+    minigame_button_mash = Minigame.get_default_button_mash(),
+    minigame_rhythm = Minigame.get_default_rhythm(),
+    meters = Meter.get_initial(),
+    game = {
+      current_screen = "home",
+      current_situation = nil,
+    }
   }
 end
 
-Context = {}
+--- Resets game context to initial state.
-
+function Context.reset()
-local function reset_context_to_initial_state()
+  local initial_data = Context.initial_data()
-  local initial_data = get_initial_data()
-
   for k in pairs(Context) do
-    if type(Context[k]) ~= "function" then       Context[k] = nil
+    if type(Context[k]) ~= "function" then
+      Context[k] = nil
     end
   end
 
   for k, v in pairs(initial_data) do
     Context[k] = v
   end
-
-  Context.screens = {}
-  Context.screen_indices_by_id = {}
-  local screen_order = {"home", "toilet", "walking_to_office", "office", "walking_to_home"}
-  for i, screen_id in ipairs(screen_order) do
-    local screen_data = ScreenManager.get_by_id(screen_id)
-    if screen_data then
-      table.insert(Context.screens, screen_data)
-      Context.screen_indices_by_id[screen_id] = i     else
-      PopupWindow.show({"Error: Screen '" .. screen_id .. "' not registered!"})
-    end
-  end
 end
 
-reset_context_to_initial_state()
+--- Starts a new game.
-
 function Context.new_game()
-  reset_context_to_initial_state()
+  Context.reset()
   Context.game_in_progress = true
   MenuWindow.refresh_menu_items()
+  Screen.get_by_id(Context.game.current_screen).init()
 end
 
+--- Saves the current game state.
 function Context.save_game()
   if not Context.game_in_progress then return end
-
   mset(SAVE_GAME_MAGIC_VALUE, SAVE_GAME_MAGIC_VALUE_ADDRESS, SAVE_GAME_BANK)
-  mset(Context.current_screen, SAVE_GAME_CURRENT_SCREEN_ADDRESS, SAVE_GAME_BANK)
 end
 
+--- Loads a saved game state.
 function Context.load_game()
   if mget(SAVE_GAME_MAGIC_VALUE_ADDRESS, SAVE_GAME_BANK) ~= SAVE_GAME_MAGIC_VALUE then
     Context.new_game()
     return
   end
-
+  Context.reset()
-  reset_context_to_initial_state()
-  Context.current_screen = mget(SAVE_GAME_CURRENT_SCREEN_ADDRESS, SAVE_GAME_BANK)
-
   Context.game_in_progress = true
   MenuWindow.refresh_menu_items()
+  Screen.get_by_id(Context.game.current_screen).init()
 end

inc/init/init.meter.lua

@@ -0,0 +1,89 @@
+local METER_MAX = 1000
+local METER_DEFAULT = 500
+local METER_DECAY_PER_FRAME = 0.02
+local METER_GAIN_PER_CHORE = 100
+local COMBO_BASE_BONUS = 0.02
+local COMBO_MAX_BONUS = 0.16
+local COMBO_TIMEOUT_FRAMES = 600
+
+-- Internal meters for tracking game progress and player stats.
+Meter.COLOR_ISM = Config.colors.red
+Meter.COLOR_WPM = Config.colors.blue
+Meter.COLOR_BM = Config.colors.black
+Meter.COLOR_BG = Config.colors.meter_bg
+
+--- Gets initial meter values.
+-- @return table A table of initial meter values.
+function Meter.get_initial()
+  return {
+    ism = METER_DEFAULT,
+    wpm = METER_DEFAULT,
+    bm = METER_DEFAULT,
+    combo = 0,
+    combo_timer = 0,
+    hidden = false,
+  }
+end
+
+--- Hides meters.
+function Meter.hide()
+  if Context and Context.meters then Context.meters.hidden = true end
+end
+
+--- Shows meters.
+function Meter.show()
+  if Context and Context.meters then Context.meters.hidden = false end
+end
+
+--- Gets max meter value.
+-- @return number The maximum meter value.
+function Meter.get_max()
+  return METER_MAX
+end
+
+--- Gets combo multiplier.
+-- @return number The current combo multiplier.
+function Meter.get_combo_multiplier()
+  if not Context or not Context.meters then return 1 end
+  local combo = Context.meters.combo
+  if combo == 0 then return 1 end
+  return 1 + math.min(COMBO_MAX_BONUS, COMBO_BASE_BONUS * (2 ^ (combo - 1)))
+end
+
+--- Updates all meters.
+function Meter.update()
+  if not Context or not Context.game_in_progress or not Context.meters then return end
+  local m = Context.meters
+  m.ism = math.max(0, m.ism - METER_DECAY_PER_FRAME)
+  m.wpm = math.max(0, m.wpm - METER_DECAY_PER_FRAME)
+  m.bm = math.max(0, m.bm - METER_DECAY_PER_FRAME)
+  if m.combo > 0 then
+    m.combo_timer = m.combo_timer + 1
+    if m.combo_timer >= COMBO_TIMEOUT_FRAMES then
+      m.combo = 0
+      m.combo_timer = 0
+    end
+  end
+end
+
+--- Adds amount to a meter.
+-- @param key string The meter key (e.g., "wpm", "ism", "bm").
+-- @param amount number The amount to add.
+function Meter.add(key, amount)
+  if not Context or not Context.meters then return end
+  local m = Context.meters
+  if m[key] ~= nil then
+    m[key] = math.min(METER_MAX, m[key] + amount)
+  end
+end
+
+--- Called on minigame completion.
+function Meter.on_minigame_complete()
+  local m = Context.meters
+  local gain = math.floor(METER_GAIN_PER_CHORE * Meter.get_combo_multiplier())
+  Meter.add("wpm", gain)
+  Meter.add("ism", gain)
+  Meter.add("bm", gain)
+  m.combo = m.combo + 1
+  m.combo_timer = 0
+end

inc/init/init.minigame.lua

@@ -0,0 +1,126 @@
+-- Manages minigame configurations and initial states.
+
+--- Applies parameters to defaults.
+-- @param defaults table The default configuration table.
+-- @param params table The parameters to apply.
+-- @return table The updated configuration table.
+local function apply_params(defaults, params)
+  if not params then return defaults end
+  for k, v in pairs(params) do
+    defaults[k] = v
+  end
+  return defaults
+end
+
+--- Gets default DDR minigame configuration.
+-- @return table The default DDR minigame configuration.
+function Minigame.get_default_ddr()
+  local arrow_size = 12
+  local arrow_spacing = 30
+  local total_width = (4 * arrow_size) + (3 * arrow_spacing)
+  local start_x = (Config.screen.width - total_width) / 2
+  return {
+    bar_fill = 0,
+    max_fill = 100,
+    fill_per_hit = 10,
+    miss_penalty = 5,
+    bar_x = 20,
+    bar_y = 10,
+    bar_width = 200,
+    bar_height = 12,
+    arrow_size = arrow_size,
+    arrow_spawn_timer = 0,
+    arrow_spawn_interval = 45,
+    arrow_fall_speed = 1.5,
+    arrows = {},
+    target_y = 115,
+    target_arrows = {
+      { dir = "left", x = start_x },
+      { dir = "down", x = start_x + arrow_size + arrow_spacing },
+      { dir = "up", x = start_x + (arrow_size + arrow_spacing) * 2 },
+      { dir = "right", x = start_x + (arrow_size + arrow_spacing) * 3 }
+    },
+    hit_threshold = 8,
+    button_pressed_timers = {},
+    button_press_duration = 8,
+    input_cooldowns = { left = 0, down = 0, up = 0, right = 0 },
+    input_cooldown_duration = 10,
+    frame_counter = 0,
+    current_song = nil,
+    pattern_index = 1,
+    use_pattern = false,
+    return_window = nil
+  }
+end
+
+--- Gets default button mash minigame configuration.
+-- @return table The default button mash minigame configuration.
+function Minigame.get_default_button_mash()
+  return {
+    bar_fill = 0,
+    max_fill = 100,
+    fill_per_press = 8,
+    base_degradation = 0.15,
+    degradation_multiplier = 0.006,
+    button_pressed_timer = 0,
+    button_press_duration = 8,
+    return_window = nil,
+    bar_x = 20,
+    bar_y = 10,
+    bar_width = 200,
+    bar_height = 12,
+    button_x = 20,
+    button_y = 110,
+    button_size = 12
+  }
+end
+
+--- Gets default rhythm minigame configuration.
+-- @return table The default rhythm minigame configuration.
+function Minigame.get_default_rhythm()
+  return {
+    line_position = 0,
+    line_speed = 0.015,
+    line_direction = 1,
+    target_center = 0.5,
+    target_width = 0.3,
+    initial_target_width = 0.3,
+    min_target_width = 0.08,
+    target_shrink_rate = 0.9,
+    score = 0,
+    max_score = 10,
+    button_pressed_timer = 0,
+    button_press_duration = 10,
+    return_window = nil,
+    bar_x = 20,
+    bar_y = 10,
+    bar_width = 200,
+    bar_height = 12,
+    button_x = 210,
+    button_y = 110,
+    button_size = 10,
+    press_cooldown = 0,
+    press_cooldown_duration = 15
+  }
+end
+
+--- Configures DDR minigame.
+-- @param params table Optional parameters to override defaults.
+-- @return table The configured DDR minigame state.
+function Minigame.configure_ddr(params)
+  return apply_params(Minigame.get_default_ddr(), params)
+end
+
+--- Configures button mash minigame.
+-- @param params table Optional parameters to override defaults.
+-- @return table The configured button mash minigame state.
+function Minigame.configure_button_mash(params)
+  return apply_params(Minigame.get_default_button_mash(), params)
+end
+
+--- Configures rhythm minigame.
+-- @param params table Optional parameters to override defaults.
+-- @return table The configured rhythm minigame state.
+function Minigame.configure_rhythm(params)
+  return apply_params(Minigame.get_default_rhythm(), params)
+end

inc/init/init.module.lua

@@ -0,0 +1,13 @@
+Window = {}
+Util = {}
+Meter = {}
+Minigame = {}
+Decision = {}
+Situation = {}
+Screen = {}
+Map = {}
+UI = {}
+Print = {}
+Input = {}
+Sprite = {}
+Audio = {}

inc/init/init.modules.lua

@@ -1,19 +0,0 @@
-local SplashWindow = {}
-local IntroWindow = {}
-local MenuWindow = {}
-local GameWindow = {}
-local PopupWindow = {}
-local ConfigurationWindow = {}
-local AudioTestWindow = {}
-local MinigameButtonMashWindow = {}
-local MinigameRhythmWindow = {}
-local MinigameDDRWindow = {}
-Util = {}
-DesitionManager = {}
-ScreenManager = {}
-MapManager = {}
-UI = {}
-Print = {}
-Input = {}
-
-Audio = {}

inc/init/init.windows.lua

@@ -1,10 +0,0 @@
-local WINDOW_SPLASH = 0
-local WINDOW_INTRO = 1
-local WINDOW_MENU = 2
-local WINDOW_GAME = 3
-local WINDOW_POPUP = 4
-local WINDOW_CONFIGURATION = 7
-local WINDOW_MINIGAME_BUTTON_MASH = 8
-local WINDOW_MINIGAME_RHYTHM = 9
-local WINDOW_MINIGAME_DDR = 10
-local WINDOW_AUDIOTEST = 9001

inc/map/map.bedroom.lua

@@ -1,4 +1,4 @@
-MapManager.register({
+Map.register({
   id = "bedroom",
   from_x =  0,
   from_y =  0,

inc/map/map.manager.lua

@@ -1,6 +1,10 @@
+-- Manages game maps.
+
 local _maps = {}
 
-function MapManager.get_maps_array()
+--- Gets all registered maps as an array.
+-- @return table An array of registered map data.
+function Map.get_maps_array()
   local maps_array = {}
   for _, map_data in pairs(_maps) do
     table.insert(maps_array, map_data)
@@ -8,19 +12,26 @@ function MapManager.get_maps_array()
   return maps_array
 end
 
-function MapManager.register(map_data)
+--- Registers a map definition.
+-- @param map_data table The map data table.
+function Map.register(map_data)
   if _maps[map_data.id] then
     trace("Warning: Overwriting map with id: " .. map_data.id)
   end
   _maps[map_data.id] = map_data
 end
 
-function MapManager.get_by_id(map_id)
+--- Gets a map by ID.
+-- @param map_id string The ID of the map.
+-- @return table The map data table or nil.
+function Map.get_by_id(map_id)
   return _maps[map_id]
 end
 
-function MapManager.draw(map_id)
+--- Draws a map.
-  local map_data = MapManager.get_by_id(map_id)
+-- @param map_id string The ID of the map to draw.
+function Map.draw(map_id)
+  local map_data = Map.get_by_id(map_id)
   if not map_data then
     return
   end

inc/screen/screen.home.lua

@@ -1,4 +1,4 @@
-ScreenManager.register({
+Screen.register({
   id = "home",
   name = "Home",
   decisions = {

inc/screen/screen.manager.lua

@@ -1,20 +1,32 @@
 local _screens = {}
 
-function ScreenManager.get_screens_array()
+--- Registers a screen definition.
-  local screens_array = {}
+-- @param screen_data table The screen data table.
-  for _, screen_data in pairs(_screens) do
+function Screen.register(screen_data)
-    table.insert(screens_array, screen_data)
-  end
-  return screens_array
-end
-
-function ScreenManager.register(screen_data)
   if _screens[screen_data.id] then
     trace("Warning: Overwriting screen with id: " .. screen_data.id)
   end
+  if not screen_data.situations then
+    screen_data.situations = {}
+  end
+  if not screen_data.init then
+    screen_data.init = function() end
+  end
+  if not screen_data.update then
+    screen_data.update = function() end
+  end
   _screens[screen_data.id] = screen_data
 end
 
-function ScreenManager.get_by_id(screen_id)
+--- Gets a screen by ID.
+-- @param screen_id string The ID of the screen.
+-- @return table The screen table or nil.
+function Screen.get_by_id(screen_id)
   return _screens[screen_id]
 end
+
+--- Gets all registered screens.
+-- @return table A table containing all registered screen data, indexed by their IDs.
+function Screen.get_all()
+  return _screens
+end

inc/screen/screen.office.lua

@@ -1,4 +1,4 @@
-ScreenManager.register({
+Screen.register({
   id = "office",
   name = "Office",
   decisions = {
@@ -6,5 +6,9 @@ ScreenManager.register({
     "play_rhythm",
     "play_ddr",
     "go_to_walking_to_home",
-  }
+    "have_a_coffee",
+  },
+  situations = {
+    "drink_coffee",
+  },
 })

inc/screen/screen.toilet.lua

@@ -1,4 +1,4 @@
-ScreenManager.register({
+Screen.register({
   id = "toilet",
   name = "Toilet",
   decisions = {

inc/screen/screen.walking_to_home.lua

@@ -1,4 +1,4 @@
-ScreenManager.register({
+Screen.register({
   id = "walking_to_home",
   name = "Walking to home",
   decisions = {

inc/screen/screen.walking_to_office.lua

@@ -1,4 +1,4 @@
-ScreenManager.register({
+Screen.register({
   id = "walking_to_office",
   name = "Walking to office",
   decisions = {

inc/situation/situation.drink_coffee.lua

@@ -0,0 +1,7 @@
+Situation.register({
+  id = "drink_coffee",
+  handle = function()
+    Audio.sfx_select()
+    Sprite.show("norman", 100, 100)
+  end,
+})

inc/situation/situation.manager.lua

@@ -0,0 +1,65 @@
+local _situations = {}
+
+--- Registers a situation definition.
+-- @param situation table The situation data table.
+function Situation.register(situation)
+  if not situation or not situation.id then
+    PopupWindow.show({"Error: Invalid situation object registered (missing id)!"})
+    return
+  end
+  if not situation.handle then
+    situation.handle = function() end
+  end
+  if not situation.update then
+    situation.update = function() end
+  end
+  if _situations[situation.id] then
+    trace("Warning: Overwriting situation with id: " .. situation.id)
+  end
+  _situations[situation.id] = situation
+end
+
+--- Gets a situation by ID.
+-- @param id string The situation ID.
+-- @return table The situation table or nil.
+function Situation.get_by_id(id)
+  return _situations[id]
+end
+
+--- Gets all registered situations, optionally filtered by screen ID.
+-- @param screen_id string Optional. If provided, returns situations associated with this screen ID.
+-- @return table A table containing all registered situation data, indexed by their IDs, or filtered by screen_id.
+function Situation.get_all(screen_id)
+  if screen_id then
+    local filtered_situations = {}
+    for _, situation in pairs(_situations) do
+      if situation.screen_id == screen_id then
+        table.insert(filtered_situations, situation)
+      end
+    end
+    return filtered_situations
+  end
+  return _situations
+end
+
+--- Applies a situation, checking screen compatibility and returning the new situation ID if successful.
+-- @param id string The situation ID to apply.
+-- @param current_screen_id string The ID of the currently active screen.
+-- @return string|nil The ID of the applied situation if successful, otherwise nil.
+function Situation.apply(id, current_screen_id)
+  local situation = Situation.get_by_id(id)
+  local screen = Screen.get_by_id(current_screen_id)
+
+  if not situation then
+    trace("Error: No situation found with id: " .. id)
+    return nil
+  end
+
+  if Util.contains(screen.situations, id) then
+    situation.handle()
+    return id
+  else
+    trace("Info: Situation " .. id .. " cannot be applied to current screen (id: " .. current_screen_id .. ").")
+    return nil
+  end
+end

inc/sprite/sprite.manager.lua

@@ -0,0 +1,83 @@
+local _sprites = {}
+local _active_sprites = {}
+
+--- Registers a sprite definition.
+-- @param sprite_data table A table containing the sprite definition.
+function Sprite.register(sprite_data)
+  if not sprite_data or not sprite_data.id then
+    trace("Error: Invalid sprite object registered (missing id)!")
+    return
+  end
+  if _sprites[sprite_data.id] then
+    trace("Warning: Overwriting sprite with id: " .. sprite_data.id)
+  end
+  _sprites[sprite_data.id] = sprite_data
+end
+
+--- Schedules a sprite for drawing.
+-- @param id string The unique identifier of the sprite.
+-- @param x number The x-coordinate.
+-- @param y number The y-coordinate.
+-- @param[opt] colorkey number The color index for transparency.
+-- @param[opt] scale number The scaling factor.
+-- @param[opt] flip_x number Set to 1 to flip horizontally.
+-- @param[opt] flip_y number Set to 1 to flip vertically.
+-- @param[opt] rot number The rotation in degrees.
+function Sprite.show(id, x, y, colorkey, scale, flip_x, flip_y, rot)
+  if not _sprites[id] then
+    trace("Error: Attempted to show non-registered sprite with id: " .. id)
+    return
+  end
+
+  _active_sprites[id] = {
+    id = id,
+    x = x,
+    y = y,
+    colorkey = colorkey,
+    scale = scale,
+    flip_x = flip_x,
+    flip_y = flip_y,
+    rot = rot,
+  }
+end
+
+--- Hides a displayed sprite.
+-- @param id string The unique identifier of the sprite.
+function Sprite.hide(id)
+  _active_sprites[id] = nil
+end
+
+--- Draws all scheduled sprites.
+function Sprite.draw()
+  for id, params in pairs(_active_sprites) do
+    local sprite_data = _sprites[id]
+    if not sprite_data then
+      trace("Error: Sprite id " .. id .. " in _active_sprites is not registered.")
+      _active_sprites[id] = nil
+    end
+
+    local colorkey = params.colorkey or sprite_data.colorkey or 0
+    local scale = params.scale or sprite_data.scale or 1
+    local flip_x = params.flip_x or sprite_data.flip_x or 0
+    local flip_y = params.flip_y or sprite_data.flip_y or 0
+    local rot = params.rot or sprite_data.rot or 0
+
+    if sprite_data.sprites then
+      for i = 1, #sprite_data.sprites do
+        local sub_sprite = sprite_data.sprites[i]
+        spr(
+          sub_sprite.s,
+          params.x + (sub_sprite.x_offset or 0),
+          params.y + (sub_sprite.y_offset or 0),
+          sub_sprite.colorkey or colorkey,
+          sub_sprite.scale or scale,
+          sub_sprite.flip_x or flip_x,
+          sub_sprite.flip_y or flip_y,
+          sub_sprite.rot or rot
+        )
+      end
+    else
+      spr(sprite_data.s, params.x, params.y, colorkey, scale, flip_x, flip_y, rot)
+    end
+  end
+end

inc/sprite/sprite.norman.lua

@@ -0,0 +1,17 @@
+Sprite.register({
+  id = "norman",
+  sprites = {
+    -- Body (sprite index 0)
+    { s = 0, x_offset = 0, y_offset = 0 },
+    -- Head (sprite index 1)
+    { s = 1, x_offset = 0, y_offset = -8 },
+    -- Left Arm (sprite index 2)
+    { s = 2, x_offset = -4, y_offset = 4 },
+    -- Right Arm (sprite index 3, flipped)
+    { s = 3, x_offset = 4, y_offset = 4, flip_x = 1 }, -- Flipped arm
+    -- Left Leg (sprite index 4)
+    { s = 4, x_offset = -2, y_offset = 8 },
+    -- Right Leg (sprite index 5, flipped)
+    { s = 5, x_offset = 2, y_offset = 8, flip_x = 1 } -- Flipped leg
+  }
+})

inc/system/system.input.lua

@@ -2,16 +2,28 @@ local INPUT_KEY_UP = 0
 local INPUT_KEY_DOWN = 1
 local INPUT_KEY_LEFT = 2
 local INPUT_KEY_RIGHT = 3
-local INPUT_KEY_A = 4 local INPUT_KEY_B = 5 local INPUT_KEY_Y = 7
+local INPUT_KEY_A = 4
+local INPUT_KEY_B = 5
+local INPUT_KEY_Y = 7
 local INPUT_KEY_SPACE = 48
 local INPUT_KEY_BACKSPACE = 51
 local INPUT_KEY_ENTER = 50
 
+--- Checks if Up is pressed.
 function Input.up() return btnp(INPUT_KEY_UP) end
+--- Checks if Down is pressed.
 function Input.down() return btnp(INPUT_KEY_DOWN) end
+--- Checks if Left is pressed.
 function Input.left() return btnp(INPUT_KEY_LEFT) end
+--- Checks if Right is pressed.
 function Input.right() return btnp(INPUT_KEY_RIGHT) end
+--- Checks if Select is pressed.
 function Input.select() return btnp(INPUT_KEY_A) or keyp(INPUT_KEY_SPACE) end
+--- Checks if Menu Confirm is pressed.
 function Input.menu_confirm() return btnp(INPUT_KEY_A) or keyp(INPUT_KEY_ENTER) end
-function Input.player_interact() return btnp(INPUT_KEY_B) or keyp(INPUT_KEY_ENTER) end function Input.menu_back() return btnp(INPUT_KEY_Y) or keyp(INPUT_KEY_BACKSPACE) end
+--- Checks if Player Interact is pressed.
+function Input.player_interact() return btnp(INPUT_KEY_B) or keyp(INPUT_KEY_ENTER) end
+--- Checks if Menu Back is pressed.
+function Input.menu_back() return btnp(INPUT_KEY_Y) or keyp(INPUT_KEY_BACKSPACE) end
+--- Checks if Toggle Popup is pressed.
 function Input.toggle_popup() return keyp(INPUT_KEY_ENTER) end

inc/system/system.main.lua

@@ -1,61 +1,24 @@
-local STATE_HANDLERS = {
-  [WINDOW_SPLASH] = function()
-    SplashWindow.update()
-    SplashWindow.draw()
-  end,
-  [WINDOW_INTRO] = function()
-    IntroWindow.update()
-    IntroWindow.draw()
-  end,
-  [WINDOW_MENU] = function()
-    MenuWindow.update()
-    MenuWindow.draw()
-  end,
-  [WINDOW_GAME] = function()
-    GameWindow.update()
-    GameWindow.draw()
-  end,
-  [WINDOW_POPUP] = function()
-    GameWindow.draw()
-    PopupWindow.update()
-    PopupWindow.draw()
-  end,
-  [WINDOW_CONFIGURATION] = function()
-    ConfigurationWindow.update()
-    ConfigurationWindow.draw()
-  end,
-  [WINDOW_AUDIOTEST] = function()
-    AudioTestWindow.update()
-    AudioTestWindow.draw()
-  end,
-  [WINDOW_MINIGAME_BUTTON_MASH] = function()
-    MinigameButtonMashWindow.update()
-    MinigameButtonMashWindow.draw()
-  end,
-  [WINDOW_MINIGAME_RHYTHM] = function()
-    MinigameRhythmWindow.update()
-    MinigameRhythmWindow.draw()
-  end,
-  [WINDOW_MINIGAME_DDR] = function()
-    MinigameDDRWindow.update()
-    MinigameDDRWindow.draw()
-  end,
-}
-
 local initialized_game = false
 
+--- Initializes game state.
 local function init_game()
   if initialized_game then return end
-
+  Context.reset()
+  Window.set_current("splash") -- Set initial window using new manager
   MenuWindow.refresh_menu_items()
   initialized_game = true
 end
 
+--- Main game loop (TIC-80 callback).
 function TIC()
   init_game()
   cls(Config.colors.black)
-  local handler = STATE_HANDLERS[Context.active_window]
+  local handler = Window.get_current_handler() -- Get handler from Window manager
   if handler then
     handler()
   end
+  Meter.update()
+  if Context.game_in_progress then
+    UI.draw_meters()
+  end
 end

inc/system/system.print.lua

@@ -1,4 +1,10 @@
-
+--- Prints text with shadow.
+-- @param text string The text to print.
+-- @param x number The x-coordinate.
+-- @param y number The y-coordinate.
+-- @param color number The color of the text.
+-- @param[opt] fixed boolean If true, uses fixed-width font.
+-- @param[opt] scale number The scaling factor.
 function Print.text(text, x, y, color, fixed, scale)
   local shadow_color = Config.colors.black
   if color == shadow_color then shadow_color = Config.colors.light_grey end
@@ -7,6 +13,13 @@ function Print.text(text, x, y, color, fixed, scale)
   print(text, x, y, color, fixed, scale)
 end
 
+--- Prints centered text with shadow.
+-- @param text string The text to print.
+-- @param x number The x-coordinate for centering.
+-- @param y number The y-coordinate.
+-- @param color number The color of the text.
+-- @param[opt] fixed boolean If true, uses fixed-width font.
+-- @param[opt] scale number The scaling factor.
 function Print.text_center(text, x, y, color, fixed, scale)
   scale = scale or 1
   local text_width = print(text, 0, -6, 0, fixed, scale)

inc/system/system.ui.lua

@@ -1,12 +1,20 @@
+--- Draws the top bar.
+-- @param title string The title text to display.
 function UI.draw_top_bar(title)
   rect(0, 0, Config.screen.width, 10, Config.colors.dark_grey)
   Print.text(title, 3, 2, Config.colors.green)
 end
 
+--- Draws dialog window.
 function UI.draw_dialog()
   PopupWindow.draw()
 end
 
+--- Draws a menu.
+-- @param items table A table of menu items.
+-- @param selected_item number The index of the currently selected item.
+-- @param x number The x-coordinate for the menu.
+-- @param y number The y-coordinate for the menu.
 function UI.draw_menu(items, selected_item, x, y)
   for i, item in ipairs(items) do
     local current_y = y + (i-1)*10
@@ -17,6 +25,10 @@ function UI.draw_menu(items, selected_item, x, y)
   end
 end
 
+--- Updates menu selection.
+-- @param items table A table of menu items.
+-- @param selected_item number The current index of the selected item.
+-- @return number The updated index of the selected item.
 function UI.update_menu(items, selected_item)
   if Input.up() then
     Audio.sfx_beep()
@@ -34,6 +46,10 @@ function UI.update_menu(items, selected_item)
   return selected_item
 end
 
+--- Wraps text.
+-- @param text string The text to wrap.
+-- @param max_chars_per_line number The maximum characters per line.
+-- @return table A table of wrapped lines.
 function UI.word_wrap(text, max_chars_per_line)
     if text == nil then return {""} end
     local lines = {}
@@ -63,6 +79,15 @@ function UI.word_wrap(text, max_chars_per_line)
     return lines
 end
 
+--- Creates a numeric stepper.
+-- @param label string The label for the stepper.
+-- @param value_getter function Function to get the current value.
+-- @param value_setter function Function to set the current value.
+-- @param min number The minimum value.
+-- @param max number The maximum value.
+-- @param step number The step increment.
+-- @param[opt] format string The format string for displaying the value.
+-- @return table A numeric stepper control definition.
 function UI.create_numeric_stepper(label, value_getter, value_setter, min, max, step, format)
   return {
     label = label,
@@ -76,6 +101,10 @@ function UI.create_numeric_stepper(label, value_getter, value_setter, min, max,
   }
 end
 
+--- Creates an action item.
+-- @param label string The label for the action item.
+-- @param action function The function to execute when the item is selected.
+-- @return table An action item control definition.
 function UI.create_action_item(label, action)
   return {
     label = label,
@@ -84,26 +113,69 @@ function UI.create_action_item(label, action)
   }
 end
 
-function UI.draw_desition_selector(desitions, selected_desition_index)
+--- Draws decision selector.
+-- @param decisions table A table of decision items.
+-- @param selected_decision_index number The index of the selected decision.
+function UI.draw_decision_selector(decisions, selected_decision_index)
   local bar_height = 16
   local bar_y = Config.screen.height - bar_height
   rect(0, bar_y, Config.screen.width, bar_height, Config.colors.dark_grey)
-  if #desitions > 0 then
+  if #decisions > 0 then
-    local selected_desition = desitions[selected_desition_index]
+    local selected_decision = decisions[selected_decision_index]
-    local desition_label = selected_desition.label
+    local decision_label = selected_decision.label
-    local text_width = #desition_label * 4     local text_y = bar_y + 4
+    local text_width = #decision_label * 4
+    local text_y = bar_y + 4
     local text_x = (Config.screen.width - text_width) / 2
     Print.text("<", 2, text_y, Config.colors.green)
-        Print.text(desition_label, text_x, text_y, Config.colors.item)         Print.text(">", Config.screen.width - 6, text_y, Config.colors.green)   end
+    Print.text(decision_label, text_x, text_y, Config.colors.item)
+    Print.text(">", Config.screen.width - 6, text_y, Config.colors.green)
+  end
 end
 
-function UI.update_desition_selector(desitions, selected_desition_index)
+--- Draws meters.
+function UI.draw_meters()
+  if not Context or not Context.game_in_progress or not Context.meters then return end
+  if Context.meters.hidden then return end
+
+  local m = Context.meters
+  local max = Meter.get_max()
+  local bar_w = 44
+  local bar_h = 2
+  local bar_x = 182
+  local label_x = 228
+  local line_h = 5
+  local start_y = 11
+  local bar_offset = math.floor((line_h - bar_h) / 2)
+
+  local meter_list = {
+    { key = "wpm", label = "WPM", color = Meter.COLOR_WPM, row = 0 },
+    { key = "ism", label = "ISM", color = Meter.COLOR_ISM, row = 1 },
+    { key = "bm", label = "BM", color = Meter.COLOR_BM, row = 2 },
+  }
+
+  for _, meter in ipairs(meter_list) do
+    local label_y = start_y + meter.row * line_h
+    local bar_y = label_y + bar_offset
+    local fill_w = math.max(0, math.floor((m[meter.key] / max) * bar_w))
+    rect(bar_x, bar_y, bar_w, bar_h, Meter.COLOR_BG)
+    if fill_w > 0 then
+      rect(bar_x, bar_y, fill_w, bar_h, meter.color)
+    end
+    print(meter.label, label_x, label_y, meter.color, false, 1, true)
+  end
+end
+
+--- Updates decision selector.
+-- @param decisions table A table of decision items.
+-- @param selected_decision_index number The current index of the selected decision.
+-- @return number The updated index of the selected decision.
+function UI.update_decision_selector(decisions, selected_decision_index)
   if Input.left() then
     Audio.sfx_beep()
-    selected_desition_index = Util.safeindex(desitions, selected_desition_index - 1)
+    selected_decision_index = Util.safeindex(decisions, selected_decision_index - 1)
   elseif Input.right() then
     Audio.sfx_beep()
-    selected_desition_index = Util.safeindex(desitions, selected_desition_index + 1)
+    selected_decision_index = Util.safeindex(decisions, selected_decision_index + 1)
   end
-  return selected_desition_index
+  return selected_decision_index
 end

inc/system/system.util.lua

@@ -1,14 +1,32 @@
-Util = {}
 
+--- Safely wraps an index for an array.
+-- @param array table The array to index.
+-- @param index number The desired index (can be out of bounds).
+-- @return number The wrapped index within the array's bounds.
 function Util.safeindex(array, index)
     return ((index - 1 + #array) % #array) + 1
 end
 
+--- Navigates to a screen by its ID.
+-- @param screen_id string The ID of the screen to go to.
 function Util.go_to_screen_by_id(screen_id)
-  local screen_index = Context.screen_indices_by_id[screen_id]
+  local screen = Screen.get_by_id(screen_id)
-  if screen_index then
+  if screen then
-    Context.current_screen = screen_index
+    Context.game.current_screen = screen_id
-    Context.selected_desition_index = 1   else
+    screen.init()
-    PopupWindow.show({"Error: Screen '" .. screen_id .. "' not found or not indexed!"})
+  else
+    PopupWindow.show({"Error: Screen '" .. screen_id .. "' not found!"})
   end
 end
+
+--- Checks if a table contains a specific value.
+-- @param t table The table to check.
+-- @param value any The value to look for.
+function Util.contains(t, value)
+  for i = 1, #t do
+    if t[i] == value then
+      return true
+    end
+  end
+  return false
+end

inc/window/window.audiotest.lua

@@ -6,34 +6,40 @@ AudioTestWindow = {
     last_pressed = false
 }
 
+--- Generates menu items for audio test.
+-- @param list_func table List of audio functions.
+-- @param index_func number Current index of selected function.
+-- @return table Generated menu items.
 function AudioTestWindow.generate_menuitems(list_func, index_func)
     return {
         {
             label = "Play music/sound: " .. (list_func[index_func] or "?"),
-            desition = function()
+            decision = function()
                 local current_func = Audio[list_func[index_func]]
                 if current_func then
                     current_func()
                 else
-                    trace("Invalid Audio function: " .. list_func[index_menu])
+                    trace("Invalid Audio function: " .. list_func[index_func])
                 end
             end
         },
         {
             label = "Stop playing music",
-            desition = function()
+            decision = function()
                 Audio.music_stop()
             end
         },
         {
             label = "Back",
-            desition = function()
+            decision = function()
                 AudioTestWindow.back()
             end
         },
     }
 end
 
+--- Generates list of audio functions.
+-- @return table A sorted list of audio function names.
 function AudioTestWindow.generate_listfunc()
     local result = {}
 
@@ -48,11 +54,13 @@ function AudioTestWindow.generate_listfunc()
     return result
 end
 
+--- Navigates back from audio test window.
 function AudioTestWindow.back()
     Audio.sfx_deselect()
-    GameWindow.set_state(WINDOW_MENU)
+    GameWindow.set_state("menu")
 end
 
+--- Initializes audio test window.
 function AudioTestWindow.init()
     AudioTestWindow.last_pressed = false
     AudioTestWindow.index_menu = 1
@@ -63,11 +71,13 @@ function AudioTestWindow.init()
     )
 end
 
+--- Draws audio test window.
 function AudioTestWindow.draw()
     UI.draw_top_bar("Audio test")
     UI.draw_menu(AudioTestWindow.menuitems, AudioTestWindow.index_menu, 20, 50)
 end
 
+--- Updates audio test window logic.
 function AudioTestWindow.update()
     if Input.up() then
         AudioTestWindow.index_menu = Util.safeindex(AudioTestWindow.menuitems, AudioTestWindow.index_menu - 1)
@@ -90,7 +100,7 @@ function AudioTestWindow.update()
             AudioTestWindow.list_func, AudioTestWindow.index_func
         )
     elseif Input.menu_confirm() then
-        AudioTestWindow.menuitems[AudioTestWindow.index_menu].desition()
+        AudioTestWindow.menuitems[AudioTestWindow.index_menu].decision()
     elseif Input.menu_back() then
         AudioTestWindow.back()
     end

inc/window/window.configuration.lua

@@ -3,23 +3,26 @@ ConfigurationWindow = {
   selected_control = 1,
 }
 
+--- Initializes configuration window.
 function ConfigurationWindow.init()
   ConfigurationWindow.controls = {
-    UI.create_desition_item(
+    UI.create_action_item(
       "Save",
       function() Config.save() end
     ),
-    UI.create_desition_item(
+    UI.create_action_item(
       "Restore Defaults",
-      function() Config.restore_defaults() end
+      function() Config.reset() end
     ),
   }
 end
 
+--- Draws configuration window.
 function ConfigurationWindow.draw()
   UI.draw_top_bar("Configuration")
 
-  local x_start = 10   local y_start = 40
+  local x_start = 10
+  local y_start = 40
   local x_value_right_align = Config.screen.width - 10
   local char_width = 4
   for i, control in ipairs(ConfigurationWindow.controls) do
@@ -29,18 +32,19 @@ function ConfigurationWindow.draw()
       local value = control.get()
       local label_text = control.label
       local value_text = string.format(control.format, value)
-
       local value_x = x_value_right_align - (#value_text * char_width)
 
       if i == ConfigurationWindow.selected_control then
         color = Config.colors.item
         Print.text("<", x_start - 8, current_y, color)
-        Print.text(label_text, x_start, current_y, color)         Print.text(value_text, value_x, current_y, color)
+        Print.text(label_text, x_start, current_y, color)
-        Print.text(">", x_value_right_align + 4, current_y, color)       else
+        Print.text(value_text, value_x, current_y, color)
+        Print.text(">", x_value_right_align + 4, current_y, color)
+      else
         Print.text(label_text, x_start, current_y, color)
         Print.text(value_text, value_x, current_y, color)
       end
-    elseif control.type == "desition_item" then
+    elseif control.type == "action_item" then
       local label_text = control.label
       if i == ConfigurationWindow.selected_control then
         color = Config.colors.item
@@ -55,9 +59,10 @@ function ConfigurationWindow.draw()
   Print.text("Press B to go back", x_start, 120, Config.colors.light_grey)
 end
 
+--- Updates configuration window logic.
 function ConfigurationWindow.update()
   if Input.menu_back() then
-    GameWindow.set_state(WINDOW_MENU)
+    GameWindow.set_state("menu")
     return
   end
 
@@ -77,14 +82,16 @@ function ConfigurationWindow.update()
   if control then
     if control.type == "numeric_stepper" then
       local current_value = control.get()
-      if btnp(2) then         local new_value = math.max(control.min, current_value - control.step)
+      if Input.left() then
+        local new_value = math.max(control.min, current_value - control.step)
         control.set(new_value)
-      elseif btnp(3) then         local new_value = math.min(control.max, current_value + control.step)
+      elseif Input.right() then
+        local new_value = math.min(control.max, current_value + control.step)
         control.set(new_value)
       end
-    elseif control.type == "desition_item" then
+    elseif control.type == "action_item" then
       if Input.menu_confirm() then
-        control.desition()
+        control.action()
       end
     end
   end

inc/window/window.game.lua

@@ -1,68 +1,66 @@
+local _available_decisions = {}
+local _selected_decision_index = 1
+
+--- Draws the game window.
 function GameWindow.draw()
-  local screen = Context.screens[Context.current_screen]
+  local screen = Screen.get_by_id(Context.game.current_screen)
-  MapManager.draw(screen.background)
+  if screen.background then Map.draw(screen.background) end
   UI.draw_top_bar(screen.name)
-  if screen and screen.decisions and #screen.decisions > 0 then
+  if #_available_decisions > 0 then
-    local available_desitions = {}
+    UI.draw_decision_selector(_available_decisions, _selected_decision_index)
-    for _, desition_id in ipairs(screen.decisions) do
-      local desition = DesitionManager.get(desition_id)
-      if desition and desition.condition() then
-        table.insert(available_desitions, desition)
-      end
-    end
-        if #available_desitions > 0 then
-      UI.draw_desition_selector(available_desitions, Context.selected_desition_index)
-    end
   end
+  Sprite.draw()
 end
 
+--- Updates the game window logic.
 function GameWindow.update()
   if Input.menu_back() then
-    Context.active_window = WINDOW_MENU
+    Window.set_current("menu")
     MenuWindow.refresh_menu_items()
     return
   end
 
-    if Input.up() then
+  local screen = Screen.get_by_id(Context.game.current_screen)
-    Context.current_screen = Context.current_screen - 1
+  screen.update()
-    if Context.current_screen < 1 then
-      Context.current_screen = #Context.screens
-    end
-    Context.selected_desition_index = 1   elseif Input.down() then
-    Context.current_screen = Context.current_screen + 1
-    if Context.current_screen > #Context.screens then
-      Context.current_screen = 1
-    end
-    Context.selected_desition_index = 1   end
 
-  local screen = Context.screens[Context.current_screen]
+  -- Handle current situation updates
-  if screen and screen.decisions and #screen.decisions > 0 then
+  if Context.game.current_situation then
-    local available_desitions = {}
+    local current_situation_obj = Situation.get_by_id(Context.game.current_situation)
-    for _, desition_id in ipairs(screen.decisions) do
+    if current_situation_obj and current_situation_obj.update then
-      local desition = DesitionManager.get(desition_id)
+      current_situation_obj.update()
-      if desition and desition.condition() then         table.insert(available_desitions, desition)
     end
   end
 
-        if #available_desitions == 0 then return end
+  -- Fetch and filter decisions locally
+  local all_decisions_for_screen = Decision.get_for_screen(screen)
+  _available_decisions = Decision.filter_available(all_decisions_for_screen)
 
-        local new_selected_desition_index = UI.update_desition_selector(
+  if #_available_decisions == 0 then return end
-      available_desitions,
+
-      Context.selected_desition_index
+  if _selected_decision_index > #_available_decisions then
+    _selected_decision_index = 1
+  end
+
+  local new_selected_decision_index = UI.update_decision_selector(
+    _available_decisions,
+    _selected_decision_index
   )
 
-        if new_selected_desition_index ~= Context.selected_desition_index then
+  if new_selected_decision_index ~= _selected_decision_index then
-      Context.selected_desition_index = new_selected_desition_index
+    _selected_decision_index = new_selected_decision_index
   end
 
   if Input.select() then
-      local selected_desition = available_desitions[Context.selected_desition_index]
+    local selected_decision = _available_decisions[_selected_decision_index]
-      if selected_desition and selected_desition.handle then         Audio.sfx_select()         selected_desition.handle()
+    if selected_decision and selected_decision.handle then
-      end
+      Audio.sfx_select()
+      selected_decision.handle()
     end
   end
 end
 
+--- Sets the active window.
+-- @param new_state string The ID of the new active window.
 function GameWindow.set_state(new_state)
-  Context.active_window = new_state
+  Window.set_current(new_state)
 end

inc/window/window.intro.lua

@@ -1,21 +1,38 @@
+IntroWindow.y = Config.screen.height
+IntroWindow.speed = 0.5
+IntroWindow.text = [[
+Norman Reds’ everyday life
+seems ordinary: work,
+meetings, coffee, and
+endless notifications.
+But beneath him, or around
+him — something is
+constantly building, and
+it soon becomes clear
+that there is more going
+on than meets the eye.
+]]
+
+--- Draws the intro window.
 function IntroWindow.draw()
   local x = (Config.screen.width - 132) / 2
-  Print.text(Context.intro.text, x, Context.intro.y, Config.colors.green)
+  Print.text(IntroWindow.text, x, IntroWindow.y, Config.colors.green)
 end
 
+--- Updates the intro window logic.
 function IntroWindow.update()
-  Context.intro.y = Context.intro.y - Context.intro.speed
+  IntroWindow.y = IntroWindow.y - IntroWindow.speed
 
   local lines = 1
-  for _ in string.gmatch(Context.intro.text, "\n") do
+  for _ in string.gmatch(IntroWindow.text, "\n") do
     lines = lines + 1
   end
 
-    if Context.intro.y < -lines * 8 then
+  if IntroWindow.y < -lines * 8 then
-    GameWindow.set_state(WINDOW_MENU)
+    Window.set_current("menu")
   end
 
   if Input.menu_confirm() then
-    GameWindow.set_state(WINDOW_MENU)
+    Window.set_current("menu")
   end
 end

inc/window/window.manager.lua

@@ -0,0 +1,43 @@
+local _windows = {}
+
+--- Registers a window table.
+-- @param id string The ID of the window (e.g., "splash", "menu").
+-- @param window_table table The actual window module table (e.g., SplashWindow).
+function Window.register(id, window_table)
+  _windows[id] = window_table
+end
+
+--- Retrieves a registered window table by its ID.
+-- @param id string The ID of the window.
+-- @return table The window module table.
+function Window.get(id)
+  return _windows[id]
+end
+
+--- Sets the currently active window.
+-- @param id string The ID of the window to activate.
+function Window.set_current(id)
+  Context.current_window = id
+end
+
+--- Gets the ID of the currently active window.
+-- @return string The ID of the active window.
+function Window.get_current_id()
+  return Context.current_window
+end
+
+--- Gets the handler function for the currently active window.
+-- This function is used by the main game loop to update and draw the active window.
+-- @return function A function that updates and draws the current window.
+function Window.get_current_handler()
+  local window_table = Window.get(Context.current_window)
+  if window_table and window_table.update and window_table.draw then
+    return function()
+      window_table.update()
+      window_table.draw()
+    end
+  else
+    -- Fallback handler for unregistered or incomplete windows
+    return function() trace("Error: No handler for window: " .. tostring(Context.current_window)) end
+  end
+end

inc/window/window.menu.lua

@@ -1,60 +1,76 @@
+local _menu_items = {}
+
+--- Draws the menu window.
 function MenuWindow.draw()
   UI.draw_top_bar("Main Menu")
-  UI.draw_menu(Context.menu_items, Context.selected_menu_item, 108, 70)
+  UI.draw_menu(_menu_items, Context.current_menu_item, 108, 70)
 end
 
+--- Updates the menu window logic.
 function MenuWindow.update()
-  Context.selected_menu_item = UI.update_menu(Context.menu_items, Context.selected_menu_item)
+  Context.current_menu_item = UI.update_menu(_menu_items, Context.current_menu_item)
 
   if Input.menu_confirm() then
-    local selected_item = Context.menu_items[Context.selected_menu_item]
+    local selected_item = _menu_items[Context.current_menu_item]
-    if selected_item and selected_item.desition then
+    if selected_item and selected_item.decision then
       Audio.sfx_select()
-      selected_item.desition()
+      selected_item.decision()
     end
   end
 end
 
+--- Starts a new game from the menu.
 function MenuWindow.new_game()
-  Context.new_game()   GameWindow.set_state(WINDOW_GAME)
+  Context.new_game()
+  GameWindow.set_state("game")
 end
 
+--- Loads a game from the menu.
 function MenuWindow.load_game()
-  Context.load_game()   GameWindow.set_state(WINDOW_GAME)
+  Context.load_game()
+  GameWindow.set_state("game")
 end
 
+--- Saves the current game from the menu.
 function MenuWindow.save_game()
-  Context.save_game() end
+  Context.save_game()
-
-function MenuWindow.resume_game()
-  GameWindow.set_state(WINDOW_GAME)
 end
 
+--- Resumes the game from the menu.
+function MenuWindow.resume_game()
+  GameWindow.set_state("game")
+end
+
+--- Exits the game.
 function MenuWindow.exit()
   exit()
 end
 
+--- Opens the configuration menu.
 function MenuWindow.configuration()
   ConfigurationWindow.init()
-  GameWindow.set_state(WINDOW_CONFIGURATION)
+  GameWindow.set_state("configuration")
 end
 
+--- Opens the audio test menu.
 function MenuWindow.audio_test()
   AudioTestWindow.init()
-  GameWindow.set_state(WINDOW_AUDIOTEST)
+  GameWindow.set_state("audiotest")
 end
 
+--- Refreshes menu items.
 function MenuWindow.refresh_menu_items()
-  Context.menu_items = {}
+  _menu_items = {}
   if Context.game_in_progress then
-    table.insert(Context.menu_items, {label = "Resume Game", desition = MenuWindow.resume_game})
+    table.insert(_menu_items, {label = "Resume Game", decision = MenuWindow.resume_game})
-    table.insert(Context.menu_items, {label = "Save Game", desition = MenuWindow.save_game})
+    table.insert(_menu_items, {label = "Save Game", decision = MenuWindow.save_game})
   end
 
-  table.insert(Context.menu_items, {label = "New Game", desition = MenuWindow.new_game})
+  table.insert(_menu_items, {label = "New Game", decision = MenuWindow.new_game})
-  table.insert(Context.menu_items, {label = "Load Game", desition = MenuWindow.load_game})
+  table.insert(_menu_items, {label = "Load Game", decision = MenuWindow.load_game})
-  table.insert(Context.menu_items, {label = "Configuration", desition = MenuWindow.configuration})
+  table.insert(_menu_items, {label = "Configuration", decision = MenuWindow.configuration})
-  table.insert(Context.menu_items, {label = "Audio Test", desition = MenuWindow.audio_test})
+  table.insert(_menu_items, {label = "Audio Test", decision = MenuWindow.audio_test})
-  table.insert(Context.menu_items, {label = "Exit", desition = MenuWindow.exit})
+  table.insert(_menu_items, {label = "Exit", decision = MenuWindow.exit})
 
-  Context.selected_menu_item = 1 end
+  Context.current_menu_item = 1
+end

inc/window/window.minigame.ddr.lua

@@ -1,67 +1,23 @@
-function MinigameDDRWindow.init()
+--- Initializes DDR minigame state.
-  -- Calculate evenly spaced arrow positions
+-- @param params table Optional parameters for configuration.
-  local arrow_size = 12
+function MinigameDDRWindow.init(params)
-  local arrow_spacing = 30
+  Context.minigame_ddr = Minigame.configure_ddr(params)
-  local total_width = (4 * arrow_size) + (3 * arrow_spacing)
-  local start_x = (Config.screen.width - total_width) / 2
-  Context.minigame_ddr = {
-    -- Progress bar (matching button mash style)
-    bar_fill = 0, -- 0 to 100
-    max_fill = 100,
-    fill_per_hit = 10, -- Points gained per perfect hit
-    miss_penalty = 5, -- Points lost per miss
-    bar_x = 20,
-    bar_y = 10,
-    bar_width = 200,
-    bar_height = 12,
-    -- Arrow settings
-    arrow_size = arrow_size,
-    arrow_spawn_timer = 0,
-    arrow_spawn_interval = 45, -- Frames between arrow spawns (for random mode)
-    arrow_fall_speed = 1.5, -- Pixels per frame
-    arrows = {}, -- Active falling arrows {dir, x, y}
-    -- Target arrows at bottom (evenly spaced, centered on screen)
-    target_y = 115, -- Y position of target arrows
-    target_arrows = {
-      {dir = "left", x = start_x},
-      {dir = "down", x = start_x + arrow_size + arrow_spacing},
-      {dir = "up", x = start_x + (arrow_size + arrow_spacing) * 2},
-      {dir = "right", x = start_x + (arrow_size + arrow_spacing) * 3}
-    },
-    -- Hit detection
-    hit_threshold = 8, -- Pixels of tolerance for perfect hit
-    button_pressed_timers = {}, -- Visual feedback per arrow
-    button_press_duration = 8,
-    -- Input cooldown per direction
-    input_cooldowns = {
-      left = 0,
-      down = 0,
-      up = 0,
-      right = 0
-    },
-    input_cooldown_duration = 10,
-    -- Song/Pattern system
-    frame_counter = 0, -- Tracks frames since start
-    current_song = nil, -- Current song data
-    pattern_index = 1, -- Current position in pattern
-    use_pattern = false, -- If true, use song pattern; if false, use random spawning
-    return_window = WINDOW_GAME
-  }
 end
 
-function MinigameDDRWindow.start(return_window, song_key)
+--- Starts the DDR minigame.
-  MinigameDDRWindow.init()
+-- @param return_window string The window ID to return to after the minigame.
-  Context.minigame_ddr.return_window = return_window or WINDOW_GAME
+-- @param[opt] song_key string The key of the song to play.
-  -- Debug: Store song_key for display
+-- @param[opt] params table Optional parameters for minigame configuration.
+function MinigameDDRWindow.start(return_window, song_key, params)
+  MinigameDDRWindow.init(params)
+  Context.minigame_ddr.return_window = return_window or "game"
   Context.minigame_ddr.debug_song_key = song_key
-  -- Load song pattern if specified
   if song_key and Songs and Songs[song_key] then
     Context.minigame_ddr.current_song = Songs[song_key]
     Context.minigame_ddr.use_pattern = true
     Context.minigame_ddr.pattern_index = 1
     Context.minigame_ddr.debug_status = "Pattern loaded: " .. song_key
   else
-    -- Default to random spawning
     Context.minigame_ddr.use_pattern = false
     if song_key then
       Context.minigame_ddr.debug_status = "Song not found: " .. tostring(song_key)
@@ -69,24 +25,24 @@ function MinigameDDRWindow.start(return_window, song_key)
       Context.minigame_ddr.debug_status = "Random mode"
     end
   end
-  Context.active_window = WINDOW_MINIGAME_DDR
+  Window.set_current("minigame_ddr")
 end
 
--- Spawn a new arrow (random direction)
+--- Spawns a random arrow.
 local function spawn_arrow()
   local mg = Context.minigame_ddr
   local target = mg.target_arrows[math.random(1, 4)]
   table.insert(mg.arrows, {
     dir = target.dir,
     x = target.x,
-    y = mg.bar_y + mg.bar_height + 10 -- Start below progress bar
+    y = mg.bar_y + mg.bar_height + 10
   })
 end
 
--- Spawn an arrow with specific direction
+--- Spawns an arrow in a specific direction.
+-- @param direction string The direction of the arrow ("left", "down", "up", "right").
 local function spawn_arrow_dir(direction)
   local mg = Context.minigame_ddr
-  -- Find the target arrow for this direction
   for _, target in ipairs(mg.target_arrows) do
     if target.dir == direction then
       table.insert(mg.arrows, {
@@ -99,116 +55,107 @@ local function spawn_arrow_dir(direction)
   end
 end
 
--- Check if arrow is close enough for a hit
+--- Checks if an arrow is hit.
+-- @param arrow table The arrow data.
+-- @return boolean True if the arrow is hit, false otherwise.
 local function check_hit(arrow)
   local mg = Context.minigame_ddr
   local distance = math.abs(arrow.y - mg.target_y)
   return distance <= mg.hit_threshold
 end
 
--- Check if arrow has passed the target
+--- Checks if an arrow is missed.
+-- @param arrow table The arrow data.
+-- @return boolean True if the arrow is missed, false otherwise.
 local function check_miss(arrow)
   local mg = Context.minigame_ddr
   return arrow.y > mg.target_y + mg.hit_threshold
 end
 
--- Draw a single arrow sprite
+--- Draws an arrow.
+-- @param x number The x-coordinate.
+-- @param y number The y-coordinate.
+-- @param direction string The direction of the arrow.
+-- @param color number The color of the arrow.
 local function draw_arrow(x, y, direction, color)
   local size = 12
   local half = size / 2
-  -- Draw arrow shape based on direction
   if direction == "left" then
-    -- Triangle pointing left
     tri(x + half, y, x, y + half, x + half, y + size, color)
     rect(x + half, y + half - 2, half, 4, color)
   elseif direction == "right" then
-    -- Triangle pointing right
     tri(x + half, y, x + size, y + half, x + half, y + size, color)
     rect(x, y + half - 2, half, 4, color)
   elseif direction == "up" then
-    -- Triangle pointing up
     tri(x, y + half, x + half, y, x + size, y + half, color)
     rect(x + half - 2, y + half, 4, half, color)
   elseif direction == "down" then
-    -- Triangle pointing down
     tri(x, y + half, x + half, y + size, x + size, y + half, color)
     rect(x + half - 2, y, 4, half, color)
   end
 end
 
+--- Updates DDR minigame logic.
 function MinigameDDRWindow.update()
   local mg = Context.minigame_ddr
-  -- Check for completion (bar filled to 100%)
   if mg.bar_fill >= mg.max_fill then
-    Context.active_window = mg.return_window
+    Meter.on_minigame_complete()
+    Meter.show()
+    Window.set_current(mg.return_window)
     return
   end
-  -- Increment frame counter
   mg.frame_counter = mg.frame_counter + 1
-  -- Check if song has ended (pattern mode only)
   if mg.use_pattern and mg.current_song and mg.current_song.end_frame then
-    -- Song has ended if we've passed the end frame AND all arrows are cleared
     if mg.frame_counter > mg.current_song.end_frame and #mg.arrows == 0 then
-      -- Song complete! Return to previous window
+      Meter.on_minigame_complete()
-      Context.active_window = mg.return_window
+      Meter.show()
+      Window.set_current(mg.return_window)
       return
     end
   end
-  -- Spawn arrows based on mode (pattern or random)
   if mg.use_pattern and mg.current_song and mg.current_song.pattern then
-    -- Pattern-based spawning (synced to song)
     local pattern = mg.current_song.pattern
-    -- Check if current frame matches any pattern entry
     while mg.pattern_index <= #pattern do
       local spawn_entry = pattern[mg.pattern_index]
       if mg.frame_counter >= spawn_entry.frame then
-        -- Time to spawn this arrow!
         spawn_arrow_dir(spawn_entry.dir)
         mg.pattern_index = mg.pattern_index + 1
       else
-        -- Not time yet, break the loop
         break
       end
     end
   else
-    -- Random spawning mode (original behavior)
     mg.arrow_spawn_timer = mg.arrow_spawn_timer + 1
     if mg.arrow_spawn_timer >= mg.arrow_spawn_interval then
       spawn_arrow()
       mg.arrow_spawn_timer = 0
     end
   end
-  -- Update falling arrows
   local arrows_to_remove = {}
   for i, arrow in ipairs(mg.arrows) do
     arrow.y = arrow.y + mg.arrow_fall_speed
-    -- Check if arrow went off-screen (miss)
     if check_miss(arrow) then
       table.insert(arrows_to_remove, i)
-      -- Penalty for missing
       mg.bar_fill = mg.bar_fill - mg.miss_penalty
       if mg.bar_fill < 0 then
         mg.bar_fill = 0
       end
     end
   end
-  -- Remove off-screen arrows (iterate backwards to avoid index issues)
+  -- iterate backwards to avoid index shift issues
   for i = #arrows_to_remove, 1, -1 do
     table.remove(mg.arrows, arrows_to_remove[i])
   end
-  -- Update input cooldowns
   for dir, _ in pairs(mg.input_cooldowns) do
     if mg.input_cooldowns[dir] > 0 then
       mg.input_cooldowns[dir] = mg.input_cooldowns[dir] - 1
     end
   end
-  -- Update button press timers
   for dir, _ in pairs(mg.button_pressed_timers) do
     if mg.button_pressed_timers[dir] > 0 then
       mg.button_pressed_timers[dir] = mg.button_pressed_timers[dir] - 1
     end
   end
-  -- Check for arrow key inputs
   local input_map = {
     left = Input.left(),
     down = Input.down(),
@@ -219,11 +166,9 @@ function MinigameDDRWindow.update()
     if pressed and mg.input_cooldowns[dir] == 0 then
       mg.input_cooldowns[dir] = mg.input_cooldown_duration
       mg.button_pressed_timers[dir] = mg.button_press_duration
-      -- Check if any arrow matches this direction and is in hit range
       local hit = false
       for i, arrow in ipairs(mg.arrows) do
         if arrow.dir == dir and check_hit(arrow) then
-          -- Perfect hit!
           mg.bar_fill = mg.bar_fill + mg.fill_per_hit
           if mg.bar_fill > mg.max_fill then
             mg.bar_fill = mg.max_fill
@@ -233,7 +178,6 @@ function MinigameDDRWindow.update()
           break
         end
       end
-      -- If pressed but no arrow to hit, apply small penalty
       if not hit then
         mg.bar_fill = mg.bar_fill - 2
         if mg.bar_fill < 0 then
@@ -244,43 +188,36 @@ function MinigameDDRWindow.update()
   end
 end
 
+--- Draws DDR minigame.
 function MinigameDDRWindow.draw()
   local mg = Context.minigame_ddr
-  -- Safety check
   if not mg then
     cls(0)
     print("DDR ERROR: Context not initialized", 10, 10, 12)
     print("Press Z to return", 10, 20, 12)
     if Input.select() then
-      Context.active_window = WINDOW_GAME
+      Window.set_current("game")
     end
     return
   end
-  -- Draw the underlying window first (for overlay effect)
+  if mg.return_window == "game" then
-  if mg.return_window == WINDOW_GAME then
     GameWindow.draw()
   end
-  -- Draw semi-transparent overlay background
   rect(0, 0, Config.screen.width, Config.screen.height, Config.colors.black)
-  -- Draw progress bar background
   rect(mg.bar_x - 2, mg.bar_y - 2, mg.bar_width + 4, mg.bar_height + 4, Config.colors.light_grey)
   rectb(mg.bar_x - 2, mg.bar_y - 2, mg.bar_width + 4, mg.bar_height + 4, Config.colors.dark_grey)
-  -- Draw progress bar fill
   local fill_width = (mg.bar_fill / mg.max_fill) * mg.bar_width
   if fill_width > 0 then
-    -- Color changes as bar fills
     local bar_color = Config.colors.green
     if mg.bar_fill > 66 then
-      bar_color = Config.colors.item -- yellow
+      bar_color = Config.colors.item
     elseif mg.bar_fill > 33 then
-      bar_color = Config.colors.bar
+      bar_color = Config.colors.blue
     end
     rect(mg.bar_x, mg.bar_y, fill_width, mg.bar_height, bar_color)
   end
-  -- Draw progress percentage
   local percentage = math.floor((mg.bar_fill / mg.max_fill) * 100)
   Print.text_center(percentage .. "%", mg.bar_x + mg.bar_width / 2, mg.bar_y + 2, Config.colors.black)
-  -- Draw target arrows at bottom (light grey when not pressed)
   if mg.target_arrows then
     for _, target in ipairs(mg.target_arrows) do
       local is_pressed = mg.button_pressed_timers[target.dir] and mg.button_pressed_timers[target.dir] > 0
@@ -288,15 +225,12 @@ function MinigameDDRWindow.draw()
       draw_arrow(target.x, mg.target_y, target.dir, color)
     end
   end
-  -- Draw falling arrows (blue)
   if mg.arrows then
     for _, arrow in ipairs(mg.arrows) do
-      draw_arrow(arrow.x, arrow.y, arrow.dir, Config.colors.bar) -- blue color
+      draw_arrow(arrow.x, arrow.y, arrow.dir, Config.colors.blue)
     end
   end
-  -- Draw instruction text
   Print.text_center("Hit the arrows!", Config.screen.width / 2, mg.bar_y + mg.bar_height + 10, Config.colors.light_grey)
-  -- Debug info (large and visible)
   local debug_y = 60
   if mg.debug_status then
     Print.text_center(mg.debug_status, Config.screen.width / 2, debug_y, Config.colors.item)
@@ -318,6 +252,6 @@ function MinigameDDRWindow.draw()
       )
     end
   else
-    Print.text_center("RANDOM MODE", Config.screen.width / 2, debug_y, Config.colors.bar)
+    Print.text_center("RANDOM MODE", Config.screen.width / 2, debug_y, Config.colors.blue)
   end
 end

inc/window/window.minigame.mash.lua

@@ -1,96 +1,73 @@
-function MinigameButtonMashWindow.init()
+--- Initializes button mash minigame state.
-  Context.minigame_button_mash = {
+-- @param params table Optional parameters for configuration.
-    bar_fill = 0, -- 0 to 100
+function MinigameButtonMashWindow.init(params)
-    max_fill = 100,
+  Context.minigame_button_mash = Minigame.configure_button_mash(params)
-    fill_per_press = 8,
-    base_degradation = 0.15, -- Base degradation per frame
-    degradation_multiplier = 0.006, -- Increases with bar fill
-    button_pressed_timer = 0, -- Visual feedback timer
-    button_press_duration = 8, -- Frames to show button press
-    return_window = WINDOW_GAME, -- Window to return to after completion
-    bar_x = 20,
-    bar_y = 10,
-    bar_width = 200,
-    bar_height = 12,
-    button_x = 20,
-    button_y = 110,
-    button_size = 12
-  }
 end
 
-function MinigameButtonMashWindow.start(return_window)
+--- Starts the button mash minigame.
-  MinigameButtonMashWindow.init()
+-- @param return_window string The window ID to return to after the minigame.
-  Context.minigame_button_mash.return_window = return_window or WINDOW_GAME
+-- @param[opt] params table Optional parameters for minigame configuration.
-  Context.active_window = WINDOW_MINIGAME_BUTTON_MASH
+function MinigameButtonMashWindow.start(return_window, params)
+  MinigameButtonMashWindow.init(params)
+  Context.minigame_button_mash.return_window = return_window or "game"
+  Window.set_current("minigame_button_mash")
 end
 
+--- Updates button mash minigame logic.
 function MinigameButtonMashWindow.update()
   local mg = Context.minigame_button_mash
-  -- Check for Z button press
   if Input.select() then
     mg.bar_fill = mg.bar_fill + mg.fill_per_press
     mg.button_pressed_timer = mg.button_press_duration
-    -- Clamp to max
     if mg.bar_fill > mg.max_fill then
       mg.bar_fill = mg.max_fill
     end
   end
-  -- Check if bar is full (completed)
   if mg.bar_fill >= mg.max_fill then
-    Context.active_window = mg.return_window
+    Meter.on_minigame_complete()
+    Meter.show()
+    Window.set_current(mg.return_window)
     return
   end
-  -- Automatic degradation (increases with bar fill level)
   local degradation = mg.base_degradation + (mg.bar_fill * mg.degradation_multiplier)
   mg.bar_fill = mg.bar_fill - degradation
-  -- Clamp to minimum
   if mg.bar_fill < 0 then
     mg.bar_fill = 0
   end
-  -- Update button press timer
   if mg.button_pressed_timer > 0 then
     mg.button_pressed_timer = mg.button_pressed_timer - 1
   end
 end
 
+--- Draws button mash minigame.
 function MinigameButtonMashWindow.draw()
   local mg = Context.minigame_button_mash
-  -- Draw the underlying window first (for overlay effect)
+  if mg.return_window == "game" then
-  if mg.return_window == WINDOW_GAME then
     GameWindow.draw()
   end
-  -- Draw semi-transparent overlay background
-  -- Draw darker rectangles to create overlay effect
   rect(0, 0, Config.screen.width, Config.screen.height, Config.colors.black)
-  -- Draw progress bar background
   rect(mg.bar_x - 2, mg.bar_y - 2, mg.bar_width + 4, mg.bar_height + 4, Config.colors.light_grey)
   rectb(mg.bar_x - 2, mg.bar_y - 2, mg.bar_width + 4, mg.bar_height + 4, Config.colors.dark_grey)
-  -- Draw progress bar fill
   local fill_width = (mg.bar_fill / mg.max_fill) * mg.bar_width
   if fill_width > 0 then
-    -- Color changes as bar fills (green -> yellow -> red analogy using available colors)
     local bar_color = Config.colors.green
     if mg.bar_fill > 66 then
-      bar_color = Config.colors.item -- yellow
+      bar_color = Config.colors.item
     elseif mg.bar_fill > 33 then
-      bar_color = Config.colors.bar -- medium color
+      bar_color = Config.colors.blue
     end
-    rect(mg.bar_x, mg.bar_y, fill_width, bar_color)
+    rect(mg.bar_x, mg.bar_y, fill_width, mg.bar_height, bar_color)
   end
-  -- Draw button indicator
   local button_color = Config.colors.light_grey
   if mg.button_pressed_timer > 0 then
-    button_color = Config.colors.green -- Highlight when pressed
+    button_color = Config.colors.green
   end
   circb(mg.button_x, mg.button_y, mg.button_size, button_color)
   if mg.button_pressed_timer > 0 then
     circ(mg.button_x, mg.button_y, mg.button_size - 2, button_color)
   end
-  -- Draw Z text in the button
   Print.text_center(" Z", mg.button_x - 2, mg.button_y - 3, Config.colors.light_grey)
-  -- Draw instruction text
   Print.text_center("MASH Z!", Config.screen.width / 2, mg.bar_y + mg.bar_height + 10, Config.colors.light_grey)
-  -- Draw progress percentage
   local percentage = math.floor((mg.bar_fill / mg.max_fill) * 100)
   Print.text_center(percentage .. "%", mg.bar_x + mg.bar_width / 2, mg.bar_y + 2, Config.colors.black)
 end

inc/window/window.minigame.rhythm.lua

@@ -1,44 +1,22 @@
-function MinigameRhythmWindow.init()
+--- Initializes rhythm minigame state.
-  Context.minigame_rhythm = {
+-- @param params table Optional parameters for configuration.
-    line_position = 0, -- Normalized position (0 to 1)
+function MinigameRhythmWindow.init(params)
-    line_speed = 0.015, -- Movement speed per frame
+  Context.minigame_rhythm = Minigame.configure_rhythm(params)
-    line_direction = 1, -- 1 for left-to-right, -1 for right-to-left
-    target_center = 0.5, -- Center of target area (middle of bar)
-    target_width = 0.3, -- Width of target area (normalized)
-    initial_target_width = 0.3,
-    min_target_width = 0.08, -- Minimum width to keep game possible
-    target_shrink_rate = 0.9, -- Multiplier per successful hit (0.9 = 10% shrink)
-    score = 0,
-    max_score = 10,
-    button_pressed_timer = 0,
-    button_press_duration = 10,
-    return_window = WINDOW_GAME,
-    -- Visual layout (match button mash minigame dimensions)
-    bar_x = 20,
-    bar_y = 10,
-    bar_width = 200,
-    bar_height = 12,
-    -- Button indicator
-    button_x = 210,
-    button_y = 110,
-    button_size = 10,
-    -- Cooldown to prevent multiple presses in one frame
-    press_cooldown = 0,
-    press_cooldown_duration = 15
-  }
 end
 
-function MinigameRhythmWindow.start(return_window)
+--- Starts the rhythm minigame.
-  MinigameRhythmWindow.init()
+-- @param return_window string The window ID to return to after the minigame.
-  Context.minigame_rhythm.return_window = return_window or WINDOW_GAME
+-- @param[opt] params table Optional parameters for minigame configuration.
-  Context.active_window = WINDOW_MINIGAME_RHYTHM
+function MinigameRhythmWindow.start(return_window, params)
+  MinigameRhythmWindow.init(params)
+  Context.minigame_rhythm.return_window = return_window or "game"
+  Window.set_current("minigame_rhythm")
 end
 
+--- Updates rhythm minigame logic.
 function MinigameRhythmWindow.update()
   local mg = Context.minigame_rhythm
-  -- Move the line across the bar (bidirectional)
   mg.line_position = mg.line_position + (mg.line_speed * mg.line_direction)
-  -- Reverse direction when reaching either end
   if mg.line_position > 1 then
     mg.line_position = 1
     mg.line_direction = -1
@@ -46,87 +24,69 @@ function MinigameRhythmWindow.update()
     mg.line_position = 0
     mg.line_direction = 1
   end
-  -- Decrease cooldown timer
   if mg.press_cooldown > 0 then
     mg.press_cooldown = mg.press_cooldown - 1
   end
-  -- Check for Z button press (only if cooldown expired)
   if Input.select() and mg.press_cooldown == 0 then
     mg.button_pressed_timer = mg.button_press_duration
     mg.press_cooldown = mg.press_cooldown_duration
-    -- Calculate if line is within target area
     local target_left = mg.target_center - (mg.target_width / 2)
     local target_right = mg.target_center + (mg.target_width / 2)
     if mg.line_position >= target_left and mg.line_position <= target_right then
-      -- HIT! Award point
       mg.score = mg.score + 1
     else
-      -- MISS! Deduct point (but not below 0)
       mg.score = mg.score - 1
       if mg.score < 0 then
         mg.score = 0
       end
     end
-    -- Calculate target width dynamically based on score
-    -- Each point shrinks by 10%, so reverse the formula
     mg.target_width = mg.initial_target_width * (mg.target_shrink_rate ^ mg.score)
     if mg.target_width < mg.min_target_width then
       mg.target_width = mg.min_target_width
     end
   end
-  -- Check win condition
   if mg.score >= mg.max_score then
-    Context.active_window = mg.return_window
+    Meter.on_minigame_complete()
+    Meter.show()
+    Window.set_current(mg.return_window)
     return
   end
-  -- Update button press timer
   if mg.button_pressed_timer > 0 then
     mg.button_pressed_timer = mg.button_pressed_timer - 1
   end
 end
 
+--- Draws rhythm minigame.
 function MinigameRhythmWindow.draw()
   local mg = Context.minigame_rhythm
-  -- Draw the underlying window first (for overlay effect)
+  if mg.return_window == "game" then
-  if mg.return_window == WINDOW_GAME then
     GameWindow.draw()
   end
-  -- Draw semi-transparent overlay background
   rect(0, 0, Config.screen.width, Config.screen.height, Config.colors.black)
-  -- Calculate actual pixel positions
-  -- Draw bar container background
   rect(mg.bar_x - 2, mg.bar_y - 2, mg.bar_width + 4, mg.bar_height + 4, Config.colors.light_grey)
   rectb(mg.bar_x - 2, mg.bar_y - 2, mg.bar_width + 4, mg.bar_height + 4, Config.colors.dark_grey)
-  -- Draw bar background (empty area)
   rect(mg.bar_x, mg.bar_y, mg.bar_width, mg.bar_height, Config.colors.dark_grey)
-  -- Draw target area (highlighted section in middle)
   local target_left = mg.target_center - (mg.target_width / 2)
   local target_x = mg.bar_x + (target_left * mg.bar_width)
   local target_width_pixels = mg.target_width * mg.bar_width
   rect(target_x, mg.bar_y, target_width_pixels, mg.bar_height, Config.colors.green)
-  -- Draw the moving line
   local line_x = mg.bar_x + (mg.line_position * mg.bar_width)
-  rect(line_x - 1, mg.bar_y, 2, mg.bar_height, Config.colors.item) -- Yellow line
+  rect(line_x - 1, mg.bar_y, 2, mg.bar_height, Config.colors.item)
-  -- Draw score text
   local score_text = "SCORE: " .. mg.score .. " / " .. mg.max_score
   Print.text_center(score_text, Config.screen.width / 2, mg.bar_y + mg.bar_height + 8, Config.colors.light_grey)
-  -- Draw instruction text
   Print.text_center(
     "Press Z when line is in green!",
     Config.screen.width / 2,
     mg.bar_y + mg.bar_height + 20,
     Config.colors.light_grey
   )
-  -- Draw button indicator in bottom-right corner
   local button_color = Config.colors.light_grey
   if mg.button_pressed_timer > 0 then
-    button_color = Config.colors.green -- Highlight when pressed
+    button_color = Config.colors.green
   end
-  -- Draw button circle
   circb(mg.button_x, mg.button_y, mg.button_size, button_color)
   if mg.button_pressed_timer > 0 then
     circ(mg.button_x, mg.button_y, mg.button_size - 2, button_color)
   end
-  -- Draw Z text in the button
   Print.text_center("Z", mg.button_x - 2, mg.button_y - 3, button_color)
 end

inc/window/window.popup.lua

@@ -5,21 +5,32 @@ local POPUP_HEIGHT = 80
 local TEXT_MARGIN_X = POPUP_X + 10
 local TEXT_MARGIN_Y = POPUP_Y + 10
 local LINE_HEIGHT = 8
+
+--- Displays a popup window.
+-- @param content_strings table A table of strings to display in the popup.
 function PopupWindow.show(content_strings)
   Context.popup.show = true
-  Context.popup.content = content_strings or {}   GameWindow.set_state(WINDOW_POPUP) end
+  Context.popup.content = content_strings or {}
+  GameWindow.set_state("popup")
+end
 
+--- Hides the popup window.
 function PopupWindow.hide()
   Context.popup.show = false
-  Context.popup.content = {}   GameWindow.set_state(WINDOW_GAME) end
+  Context.popup.content = {}
+  GameWindow.set_state("game")
+end
 
+--- Updates popup window logic.
 function PopupWindow.update()
   if Context.popup.show then
-    if Input.menu_confirm() or Input.menu_back() then       PopupWindow.hide()
+    if Input.menu_confirm() or Input.menu_back() then
+      PopupWindow.hide()
     end
   end
 end
 
+--- Draws the popup window.
 function PopupWindow.draw()
   if Context.popup.show then
     rect(POPUP_X, POPUP_Y, POPUP_WIDTH, POPUP_HEIGHT, Config.colors.black)

inc/window/window.register.lua

@@ -0,0 +1,29 @@
+SplashWindow = {}
+Window.register("splash", SplashWindow)
+
+IntroWindow = {}
+Window.register("intro", IntroWindow)
+
+MenuWindow = {}
+Window.register("menu", MenuWindow)
+
+GameWindow = {}
+Window.register("game", GameWindow)
+
+PopupWindow = {}
+Window.register("popup", PopupWindow)
+
+ConfigurationWindow = {}
+Window.register("configuration", ConfigurationWindow)
+
+AudioTestWindow = {}
+Window.register("audiotest", AudioTestWindow)
+
+MinigameButtonMashWindow = {}
+Window.register("minigame_button_mash", MinigameButtonMashWindow)
+
+MinigameRhythmWindow = {}
+Window.register("minigame_rhythm", MinigameRhythmWindow)
+
+MinigameDDRWindow = {}
+Window.register("minigame_ddr", MinigameDDRWindow)

inc/window/window.splash.lua

@@ -1,14 +1,14 @@
+--- Draws the splash window.
 function SplashWindow.draw()
   local txt = "Definitely not an Impostor"
-  local w = #txt * 6
+  local y = (Config.screen.height - 6) / 2
-  local x = (240 - w) / 2
+  Print.text_center(txt, Config.screen.width / 2, y, Config.colors.white)
-  local y = (136 - 6) / 2
-  print(txt, x, y, 12)
 end
 
+--- Updates the splash window logic.
 function SplashWindow.update()
   Context.splash_timer = Context.splash_timer - 1
   if Context.splash_timer <= 0 or Input.menu_confirm() then
-    GameWindow.set_state(WINDOW_INTRO)
+    Window.set_current("intro")
   end
 end