move meter to system (temporary)

inc/system/system.meter.lua

@@ -0,0 +1,119 @@
+--- @section Meter
+local METER_MAX = 1000
+local METER_DEFAULT = 500
+local METER_GAIN_PER_CHORE = 100
+local METER_DECAY_PER_DAY = 20
+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.
+--- @within Meter
+--- @return result table Initial meter values. </br>
+--- Fields: </br>
+--- * ism (number) Initial ISM meter value.<br/>
+--- * wpm (number) Initial WPM meter value.<br/>
+--- * bm (number) Initial BM meter value.<br/>
+--- * combo (number) Current combo count.<br/>
+--- * combo_timer (number) Frames since last combo action.<br/>
+--- * hidden (boolean) Whether meters are hidden.
+function Meter.get_initial()
+  return {
+    ism = METER_DEFAULT,
+    wpm = METER_DEFAULT,
+    bm = METER_DEFAULT,
+    combo = 0,
+    combo_timer = 0,
+    hidden = false,
+  }
+end
+
+--- Hides meters.
+--- @within Meter
+function Meter.hide()
+  if Context and Context.meters then Context.meters.hidden = true end
+end
+
+--- Shows meters.
+--- @within Meter
+function Meter.show()
+  if Context and Context.meters then Context.meters.hidden = false end
+end
+
+--- Gets max meter value.
+--- @within Meter
+--- @return number The maximum meter value.
+function Meter.get_max()
+  return METER_MAX
+end
+
+--- Sets the decay amount applied to all meters per day.
+--- @within Meter
+--- @param amount number Amount to subtract from each meter.
+function Meter.set_decay(amount)
+  METER_DECAY_PER_DAY = amount
+end
+
+--- Gets the meter decay as a percentage of the max meter value.
+--- @within Meter
+--- @return number The decay percentage per day.
+function Meter.get_decay_percentage()
+  return math.floor(METER_DECAY_PER_DAY / METER_MAX * 100)
+end
+
+--- Gets combo multiplier.
+--- @within Meter
+--- @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.
+--- @within Meter
+function Meter.update()
+  if not Context or not Context.game_in_progress or not Context.meters then return end
+  local m = Context.meters
+  local in_minigame = string.find(Window.get_current_id(), "^minigame_") ~= nil
+  if not in_minigame then
+    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
+end
+
+--- Adds amount to a meter.
+--- @within 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.
+--- @within Meter
+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