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impostor/inc/init/init.meter.lua
Zoltan Timar 66af47c483
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feat: ring timer drawn at top-left of screen, Meter.set_timer_duration(f) controls speed, Meter.set_timer_decay(a) controls decay amount, all decay pauses during any minigame window
2026-02-26 15:43:39 +01:00

135 lines
4.1 KiB
Lua

--- @section Meter
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
-- 1800 frames = 30 seconds (1800 ÷ 60 = 30)
local meter_timer_duration = 1800
local meter_timer_decay_per_revolution = 20
-- 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
--- Sets the number of frames for one full timer revolution.
--- @within Meter
--- @param frames number Frames per revolution (controls degradation speed).
function Meter.set_timer_duration(frames)
meter_timer_duration = frames
end
--- Sets the degradation amount applied to all meters per revolution.
--- @within Meter
--- @param amount number Amount to subtract from each meter per revolution.
function Meter.set_timer_decay(amount)
meter_timer_decay_per_revolution = amount
end
--- Gets initial meter values.
--- @within Meter
--- @return result table A table of initial meter values.
--- @return result.ism number Initial ISM meter value.
--- @return result.wpm number Initial WPM meter value.
--- @return result.bm number Initial BM meter value.
--- @return result.combo number Current combo count.
--- @return result.combo_timer number Frames since last combo action.
--- @return result.hidden boolean Whether meters are hidden.
--- @return result.timer_progress number Clock timer revolution progress (0 to 1).
function Meter.get_initial()
return {
ism = METER_DEFAULT,
wpm = METER_DEFAULT,
bm = METER_DEFAULT,
combo = 0,
combo_timer = 0,
hidden = false,
timer_progress = 0,
}
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
--- 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
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
m.timer_progress = m.timer_progress + (1 / meter_timer_duration)
if m.timer_progress >= 1 then
m.timer_progress = m.timer_progress - 1
m.ism = math.max(0, m.ism - meter_timer_decay_per_revolution)
m.wpm = math.max(0, m.wpm - meter_timer_decay_per_revolution)
m.bm = math.max(0, m.bm - meter_timer_decay_per_revolution)
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