v0.3 refact round

mranderson.lua

@@ -3,286 +3,334 @@
 -- desc:    Life of a programmer in the Matrix
 -- site:    http://teletype.hu
 -- license: MIT License
--- version: 0.1
+-- version: 0.3
 -- script:  lua
 
--- Game constants
+--------------------------------------------------------------------------------
-SCREEN_WIDTH = 240
+-- Game Configuration
-SCREEN_HEIGHT = 136
+--------------------------------------------------------------------------------
-
+local Config = {
--- Colors
+  screen = {
-COLOR_BLACK = 0
+    width = 240,
-COLOR_LIGHT_GREY = 13
+    height = 136
-COLOR_DARK_GREY = 14
+  },
-COLOR_GREEN = 6
+  colors = {
-COLOR_NPC = 8
+    black = 0,
-
+    light_grey = 13,
--- Game state
+    dark_grey = 14,
-STATE_SPLASH = 0
+    green = 6,
-STATE_MENU = 1
+    npc = 8
-STATE_GAME = 2
+  },
-STATE_DIALOG = 3
+  player = {
-
+    w = 8,
--- Player constants
+    h = 8,
-PLAYER_WIDTH = 8
+    start_x = 120,
-PLAYER_HEIGHT = 8
+    start_y = 128,
-PLAYER_START_X = 120
+  },
-PLAYER_START_Y = 128
+  physics = {
-
+    gravity = 0.5,
--- Ground constants
+    jump_power = -5,
-GROUND_X = 0
+    move_speed = 1.5,
-GROUND_Y = 136
+    max_jumps = 2,
-GROUND_W = 240
+  },
-GROUND_H = 8
+  timing = {
-
+    splash_duration = 120 -- 2 seconds at 60fps
--- Physics constants
+  }
-GRAVITY = 0.5
-JUMP_POWER = -5
-MOVE_SPEED = 1.5
-MAX_JUMPS = 2
-
--- Global variables (initialized)
-local gameState = STATE_SPLASH
-local currentScreen = 1
-local dialog_text = ""
-local splash_timer = 120 -- 2 seconds at 60fps
-
--- Player properties
-local player = {
-  x = PLAYER_START_X,
-  y = PLAYER_START_Y,
-  w = PLAYER_WIDTH,
-  h = PLAYER_HEIGHT,
-  vx = 0,
-  vy = 0,
-  jumps = 0
 }
 
--- Ground properties
+--------------------------------------------------------------------------------
-local ground = {
+-- Game States
-  x = GROUND_X,
+--------------------------------------------------------------------------------
-  y = GROUND_Y,
+local GAME_STATE_SPLASH = 0
-  w = GROUND_W,
+local GAME_STATE_MENU = 1
-  h = GROUND_H
+local GAME_STATE_GAME = 2
+local GAME_STATE_DIALOG = 3
+
+--------------------------------------------------------------------------------
+-- Modules
+--------------------------------------------------------------------------------
+local Splash = {}
+local Menu = {}
+local Game = {}
+local UI = {}
+local Input = {}
+
+--------------------------------------------------------------------------------
+-- Game State
+--------------------------------------------------------------------------------
+local State = {
+  game_state = GAME_STATE_SPLASH,
+  current_screen = 1,
+  dialog_text = "",
+  splash_timer = Config.timing.splash_duration,
+  player = {
+    x = Config.player.start_x,
+    y = Config.player.start_y,
+    w = Config.player.w,
+    h = Config.player.h,
+    vx = 0,
+    vy = 0,
+    jumps = 0
+  },
+  ground = {
+    x = 0,
+    y = Config.screen.height,
+    w = Config.screen.width,
+    h = 8
+  },
+  menu_items = {"Play", "Exit"},
+  selected_menu_item = 1,
+  -- Screen data
+  screens = {
+    { -- Screen 1
+      name = "Screen 1",
+      platforms = {
+        {x = 80, y = 110, w = 40, h = 8},
+        {x = 160, y = 90, w = 40, h = 8}
+      },
+      npcs = {
+        {x = 180, y = 82, name = "Trinity"},
+        {x = 90, y = 102, name = "Oracle"}
+      }
+    },
+    { -- Screen 2
+      name = "Screen 2",
+      platforms = {
+        {x = 30, y = 100, w = 50, h = 8},
+        {x = 100, y = 80, w = 50, h = 8},
+        {x = 170, y = 60, w = 50, h = 8}
+      },
+      npcs = {
+        {x = 120, y = 72, name = "Morpheus"},
+        {x = 40, y = 92, name = "Tank"}
+      }
+    },
+    { -- Screen 3
+      name = "Screen 3",
+      platforms = {
+        {x = 50, y = 110, w = 30, h = 8},
+        {x = 100, y = 90, w = 30, h = 8},
+        {x = 150, y = 70, w = 30, h = 8},
+        {x = 200, y = 50, w = 30, h = 8}
+      },
+      npcs = {
+        {x = 210, y = 42, name = "Agent Smith"},
+        {x = 160, y = 62, name = "Cypher"}
+      }
+    }
+  }
 }
 
--- Menu properties
+--------------------------------------------------------------------------------
-local menuItems = {"Play", "Exit"}
+-- Input Module
-local selectedMenuItem = 1
+--------------------------------------------------------------------------------
+function Input.up() return btnp(0) end
+function Input.down() return btnp(1) end
+function Input.left() return btn(2) end
+function Input.right() return btn(3) end
+function Input.action() return btnp(4) end
+function Input.back() return btnp(5) end
 
-local function draw_splash()
+--------------------------------------------------------------------------------
-  cls(COLOR_BLACK)
+-- UI Module
-  print("Mr. Anderson's", 78, 60, COLOR_LIGHT_GREY)
+--------------------------------------------------------------------------------
-  print("Addventure", 90, 70, COLOR_LIGHT_GREY)
+function UI.draw_top_bar(title)
+  rect(0, 0, Config.screen.width, 10, Config.colors.black)
+  print(title, 3, 2, Config.colors.light_grey)
 end
 
-local function update_splash()
+function UI.draw_dialog()
-  splash_timer = splash_timer - 1
+  rect(40, 50, 160, 40, Config.colors.black)
-  if splash_timer <= 0 then
+  rectb(40, 50, 160, 40, Config.colors.dark_grey)
-    gameState = STATE_MENU
+  print(State.dialog_text, 120 - #State.dialog_text * 2, 68, Config.colors.light_grey)
+end
+
+--------------------------------------------------------------------------------
+-- Splash Module
+--------------------------------------------------------------------------------
+function Splash.draw()
+  cls(Config.colors.black)
+  print("Mr. Anderson's", 78, 60, Config.colors.light_grey)
+  print("Addventure", 90, 70, Config.colors.light_grey)
+end
+
+function Splash.update()
+  State.splash_timer = State.splash_timer - 1
+  if State.splash_timer <= 0 then
+    State.game_state = GAME_STATE_MENU
   end
 end
 
-local function draw_top_bar(title)
+--------------------------------------------------------------------------------
-  rect(0, 0, SCREEN_WIDTH, 10, COLOR_BLACK)
+-- Menu Module
-  print(title, 3, 2, COLOR_LIGHT_GREY)
+--------------------------------------------------------------------------------
-end
+function Menu.draw()
-
+  cls(Config.colors.light_grey)
-local function draw_menu()
+  UI.draw_top_bar("Main Menu")
-  cls(COLOR_LIGHT_GREY)
+  for i, item in ipairs(State.menu_items) do
-  draw_top_bar("Main Menu")
+    local color = Config.colors.dark_grey
-  for i, item in ipairs(menuItems) do
+    if i == State.selected_menu_item then
-    local color = COLOR_DARK_GREY
+      color = Config.colors.green
-    if i == selectedMenuItem then
-      color = COLOR_GREEN
     end
     print(item, 108, 70 + (i-1)*10, color)
   end
 end
 
-local function update_menu()
+function Menu.update()
-  if btnp(0) then -- Up
+  if Input.up() then
-    selectedMenuItem = selectedMenuItem - 1
+    State.selected_menu_item = State.selected_menu_item - 1
-    if selectedMenuItem < 1 then
+    if State.selected_menu_item < 1 then
-      selectedMenuItem = #menuItems
+      State.selected_menu_item = #State.menu_items
     end
-  elseif btnp(1) then -- Down
+  elseif Input.down() then
-    selectedMenuItem = selectedMenuItem + 1
+    State.selected_menu_item = State.selected_menu_item + 1
-    if selectedMenuItem > #menuItems then
+    if State.selected_menu_item > #State.menu_items then
-      selectedMenuItem = 1
+      State.selected_menu_item = 1
     end
   end
 
-  if btnp(4) or btnp(5) then -- A or B button
+  if Input.action() or Input.back() then
-    if selectedMenuItem == 1 then -- Play
+    if State.selected_menu_item == 1 then -- Play
       -- Reset player state and screen for a new game
-      player.x = PLAYER_START_X
+      State.player.x = Config.player.start_x
-      player.y = PLAYER_START_Y
+      State.player.y = Config.player.start_y
-      player.vx = 0
+      State.player.vx = 0
-      player.vy = 0
+      State.player.vy = 0
-      player.jumps = 0
+      State.player.jumps = 0
-      currentScreen = 1
+      State.current_screen = 1
-      gameState = STATE_GAME
+      State.game_state = GAME_STATE_GAME
-    elseif selectedMenuItem == 2 then -- Exit
+    elseif State.selected_menu_item == 2 then -- Exit
       exit()
     end
   end
 end
 
--- Screen data
+--------------------------------------------------------------------------------
-local screens = {
+-- Game Module
-  { -- Screen 1
+--------------------------------------------------------------------------------
-    name = "Screen 1",
+function Game.draw()
-    platforms = {
+  local currentScreenData = State.screens[State.current_screen]
-      {x = 80, y = 110, w = 40, h = 8},
-      {x = 160, y = 90, w = 40, h = 8}
-    },
-    npcs = {
-      {x = 180, y = 82, name = "Trinity"},
-      {x = 90, y = 102, name = "Oracle"}
-    }
-  },
-  { -- Screen 2
-    name = "Screen 2",
-    platforms = {
-      {x = 30, y = 100, w = 50, h = 8},
-      {x = 100, y = 80, w = 50, h = 8},
-      {x = 170, y = 60, w = 50, h = 8}
-    },
-    npcs = {
-      {x = 120, y = 72, name = "Morpheus"},
-      {x = 40, y = 92, name = "Tank"}
-    }
-  },
-  { -- Screen 3
-    name = "Screen 3",
-    platforms = {
-      {x = 50, y = 110, w = 30, h = 8},
-      {x = 100, y = 90, w = 30, h = 8},
-      {x = 150, y = 70, w = 30, h = 8},
-      {x = 200, y = 50, w = 30, h = 8}
-    },
-    npcs = {
-      {x = 210, y = 42, name = "Agent Smith"},
-      {x = 160, y = 62, name = "Cypher"}
-    }
-  }
-}
   
-local function game_update()
+  cls(Config.colors.light_grey)
-  -- Handle input
+  UI.draw_top_bar(currentScreenData.name)
-  if btn(2) then
+
-    player.vx = -MOVE_SPEED
+  -- Draw platforms
-  elseif btn(3) then
+  for _, p in ipairs(currentScreenData.platforms) do
-    player.vx = MOVE_SPEED
+    rect(p.x, p.y, p.w, p.h, Config.colors.dark_grey)
-  else
-    player.vx = 0
   end
   
-  if btnp(4) and player.jumps < MAX_JUMPS then
+  -- Draw NPCs
-    player.vy = JUMP_POWER
+  for _, npc in ipairs(currentScreenData.npcs) do
-    player.jumps = player.jumps + 1
+    rect(npc.x, npc.y, Config.player.w, Config.player.h, Config.colors.npc)
+  end
+
+  -- Draw ground
+  rect(State.ground.x, State.ground.y, State.ground.w, State.ground.h, Config.colors.dark_grey)
+
+  -- Draw player
+  rect(State.player.x, State.player.y, State.player.w, State.player.h, Config.colors.green)
+end
+
+function Game.update()
+  -- Handle input
+  if Input.left() then
+    State.player.vx = -Config.physics.move_speed
+  elseif Input.right() then
+    State.player.vx = Config.physics.move_speed
+  else
+    State.player.vx = 0
+  end
+
+  if Input.action() and State.player.jumps < Config.physics.max_jumps then
+    State.player.vy = Config.physics.jump_power
+    State.player.jumps = State.player.jumps + 1
   end
 
   -- Update player position
-  player.x = player.x + player.vx
+  State.player.x = State.player.x + State.player.vx
-  player.y = player.y + player.vy
+  State.player.y = State.player.y + State.player.vy
 
   -- Screen transition
-  if player.x > SCREEN_WIDTH - player.w then
+  if State.player.x > Config.screen.width - State.player.w then
-    if currentScreen < #screens then
+    if State.current_screen < #State.screens then
-      currentScreen = currentScreen + 1
+      State.current_screen = State.current_screen + 1
-      player.x = 0
+      State.player.x = 0
     else
-      player.x = SCREEN_WIDTH - player.w
+      State.player.x = Config.screen.width - State.player.w
     end
-  elseif player.x < 0 then
+  elseif State.player.x < 0 then
-    if currentScreen > 1 then
+    if State.current_screen > 1 then
-      currentScreen = currentScreen - 1
+      State.current_screen = State.current_screen - 1
-      player.x = SCREEN_WIDTH - player.w
+      State.player.x = Config.screen.width - State.player.w
     else
-      player.x = 0
+      State.player.x = 0
     end
   end
 
   -- Apply gravity
-  player.vy = player.vy + GRAVITY
+  State.player.vy = State.player.vy + Config.physics.gravity
 
-  local currentScreenData = screens[currentScreen]
+  local currentScreenData = State.screens[State.current_screen]
-  local currentPlatforms = currentScreenData.platforms
   -- Collision detection with platforms
-  for i, p in ipairs(currentPlatforms) do
+  for _, p in ipairs(currentScreenData.platforms) do
-    if player.vy > 0 and player.y + player.h >= p.y and player.y + player.h <= p.y + p.h and player.x + player.w > p.x and player.x < p.x + p.w then
+    if State.player.vy > 0 and State.player.y + State.player.h >= p.y and State.player.y + State.player.h <= p.y + p.h and State.player.x + State.player.w > p.x and State.player.x < p.x + p.w then
-      player.y = p.y - player.h
+      State.player.y = p.y - State.player.h
-      player.vy = 0
+      State.player.vy = 0
-      player.jumps = 0
+      State.player.jumps = 0
     end
   end
 
   -- Collision detection with ground
-  if player.y + player.h > ground.y and player.x + player.w > ground.x and player.x < ground.x + ground.w then
+  if State.player.y + State.player.h > State.ground.y then
-    player.y = ground.y - player.h
+    State.player.y = State.ground.y - State.player.h
-    player.vy = 0
+    State.player.vy = 0
-    player.jumps = 0
+    State.player.jumps = 0
   end
 
   -- NPC interaction
-  if btnp(4) then
+  if Input.action() then
-    for i, npc in ipairs(currentScreenData.npcs) do
+    for _, npc in ipairs(currentScreenData.npcs) do
-      if math.abs(player.x - npc.x) < 12 and math.abs(player.y - npc.y) < 12 then
+      if math.abs(State.player.x - npc.x) < 12 and math.abs(State.player.y - npc.y) < 12 then
-        dialog_text = npc.name
+        State.dialog_text = npc.name
-        gameState = STATE_DIALOG
+        State.game_state = GAME_STATE_DIALOG
       end
     end
   end
-
-  -- Clear screen
-  cls(COLOR_LIGHT_GREY)
-
-  draw_top_bar(currentScreenData.name)
-
-  -- Draw platforms
-  for i, p in ipairs(currentPlatforms) do
-    rect(p.x, p.y, p.w, p.h, COLOR_DARK_GREY)
-  end
-  
-  -- Draw NPCs
-  for i, npc in ipairs(currentScreenData.npcs) do
-    rect(npc.x, npc.y, PLAYER_WIDTH, PLAYER_HEIGHT, COLOR_NPC)
-  end
-
-  -- Draw ground
-  rect(ground.x, ground.y, ground.w, ground.h, COLOR_DARK_GREY)
-
-  -- Draw player
-  rect(player.x, player.y, player.w, player.h, COLOR_GREEN)
 end
 
-local function draw_dialog()
+function Game.update_dialog()
-  rect(40, 50, 160, 40, COLOR_BLACK)
+  if Input.action() or Input.back() then
-  rectb(40, 50, 160, 40, COLOR_DARK_GREY)
+    State.game_state = GAME_STATE_GAME
-  print(dialog_text, 120 - #dialog_text * 2, 68, COLOR_DARK_GREY)
-end
-
-local function update_dialog()
-  if btnp(4) or btnp(5) then
-    gameState = STATE_GAME
   end
 end
 
+--------------------------------------------------------------------------------
+-- Main Game Loop
+--------------------------------------------------------------------------------
+local STATE_HANDLERS = {
+  [GAME_STATE_SPLASH] = function()
+    Splash.update()
+    Splash.draw()
+  end,
+  [GAME_STATE_MENU] = function()
+    Menu.update()
+    Menu.draw()
+  end,
+  [GAME_STATE_GAME] = function()
+    Game.update()
+    Game.draw()
+  end,
+  [GAME_STATE_DIALOG] = function()
+    Game.draw() -- Draw game behind dialog
+    UI.draw_dialog()
+    Game.update_dialog()
+  end,
+}
+
 function TIC()
-  if gameState == STATE_SPLASH then
+  local handler = STATE_HANDLERS[State.game_state]
-    update_splash()
+  if handler then
-    draw_splash()
+    handler()
-  elseif gameState == STATE_MENU then
-    update_menu()
-    draw_menu()
-  elseif gameState == STATE_GAME then
-    game_update()
-  elseif gameState == STATE_DIALOG then
-    game_update() -- keep drawing the game state in the background
-    draw_dialog()
-    update_dialog()
   end
 end
 
@@ -315,4 +363,3 @@ end
 -- <PALETTE>
 -- 000:1a1c2c5d275db13e53ef7d57ffcd75a7f07038b76425717929366f3b5dc941a6f673eff7f4f4f494b0c2566c86333c57
 -- </PALETTE>
-