92 lines
2.6 KiB
Lua
92 lines
2.6 KiB
Lua
local ease = require "lib.utils.easing"
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local AnimationNode = require "lib.animation_node"
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local EFFECTS_SUPPORTED = love.audio.isEffectsSupported()
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--- @alias SourceFilter { type: "bandpass"|"highpass"|"lowpass", volume: number, highgain: number, lowgain: number }
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--- @class Audio
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--- @field musicVolume number
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--- @field soundVolume number
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--- @field looped boolean
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--- @field animationNode AnimationNode?
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--- @field from love.Source?
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--- @field to love.Source?
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audio = {}
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audio.__index = audio
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--- здесь мы должны выгружать значения из файлика с сохранением настроек
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local function new(musicVolume, soundVolume)
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return setmetatable({
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musicVolume = musicVolume,
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soundVolume = soundVolume,
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looped = true
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}, audio)
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end
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function audio:update(dt)
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if not self.animationNode then return end
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self.from:setVolume(self.musicVolume - self.animationNode:getValue() * self.musicVolume)
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self.to:setVolume(self.animationNode:getValue() * self.musicVolume)
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self.animationNode:update(dt)
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-- print(self.animationNode.t)
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end
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--- if from is nil, than we have fade in to;
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--- if to is nil, than we have fade out from
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---
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--- also we should guarantee, that from and to have the same volume
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--- @param from love.Source
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--- @param to love.Source
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--- @param ms number? in milliseconds
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function audio:crossfade(from, to, ms)
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print("[Audio]: Triggered crossfade")
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self:play(to)
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to:setVolume(0)
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self.from = from
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self.to = to
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self.animationNode = AnimationNode {
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function(node) end,
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onEnd = function()
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self.from:setVolume(0)
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self.to:setVolume(self.musicVolume)
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self.from:stop()
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self.animationNode = nil
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print("[Audio]: Crossfade done")
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end,
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duration = ms or 1000,
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easing = ease.easeOutCubic,
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}
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self.animationNode:run()
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end
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--- @param source love.Source
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--- @param settings SourceFilter?
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--- @param effectName string?
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function audio:play(source, settings, effectName)
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if source:getType() == "stream" then
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source:setLooping(self.looped)
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source:setVolume(self.musicVolume)
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source:play()
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else
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source:setVolume(self.soundVolume)
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source:play()
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end
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if settings and EFFECTS_SUPPORTED then
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source.setFilter(source, settings)
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end
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if effectName and EFFECTS_SUPPORTED then
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source:setEffect(effectName, true)
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end
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end
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function audio:setMusicVolume(volume)
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self.musicVolume = volume
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end
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function audio:setSoundVolume(volume)
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self.soundVolume = volume
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end
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return { new = new }
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