86 lines
1.7 KiB
Lua
86 lines
1.7 KiB
Lua
local min=math.min
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local function fadeOut(src)
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while true do
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coroutine.yield()
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local v=src:getVolume()-.025*SETTING.bgm
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src:setVolume(v>0 and v or 0)
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if v<=0 then
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src:stop()
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return true
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end
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end
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end
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local function fadeIn(src)
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while true do
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coroutine.yield()
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local v=SETTING.bgm
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v=min(v,src:getVolume()+.025*v)
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src:setVolume(v)
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if v>=SETTING.bgm then
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return true
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end
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end
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end
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local function removeCurFadeOut(task,code,src)
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return task.code==code and task.args[1]==src
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end
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local BGM={
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--nowPlay=[str:playing ID]
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--playing=[src:playing SRC]
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}
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function BGM.set(L)
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BGM.list=L
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BGM.len=#L
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end
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function BGM.loadOne(N)
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N=BGM.list[N]
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local file="media/BGM/"..N..".ogg"
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if love.filesystem.getInfo(file)then
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BGM.list[N]=love.audio.newSource(file,"stream")
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BGM.list[N]:setLooping(true)
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BGM.list[N]:setVolume(0)
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else
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LOG.print("No BGM file: "..N,5,COLOR.orange)
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end
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end
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function BGM.loadAll()
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for i=1,#BGM.list do
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BGM.loadOne(i)
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end
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end
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function BGM.play(s)
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if SETTING.bgm==0 then
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BGM.nowPlay=s
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BGM.playing=BGM.list[s]
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return
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end
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if s and BGM.list[s]and BGM.nowPlay~=s then
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if BGM.nowPlay then TASK.new(fadeOut,BGM.playing)end
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TASK.removeTask_iterate(removeCurFadeOut,fadeOut,BGM.list[s])
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TASK.removeTask_code(fadeIn)
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TASK.new(fadeIn,BGM.list[s])
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BGM.nowPlay=s
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BGM.playing=BGM.list[s]
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BGM.playing:play()
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end
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end
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function BGM.freshVolume()
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if BGM.playing then
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local v=SETTING.bgm
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if v>0 then
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BGM.playing:setVolume(v)
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BGM.playing:play()
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elseif BGM.nowPlay then
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BGM.playing:pause()
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end
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end
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end
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function BGM.stop()
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TASK.removeTask_code(fadeIn)
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if BGM.nowPlay then TASK.new(fadeOut,BGM.nowPlay)end
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BGM.nowPlay,BGM.playing=nil
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end
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return BGM |