SoundManager (日本語)
これは Bartbes と Nevon により制作されたゲームである Volley Brawl で使われている音声管理器です。
Copyright (c) 2011, Bart van Strien and Tommy Brunn
All rights reserved.
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modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
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documentation and/or other materials provided with the distribution.
* Neither the name of the <organization> nor the
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derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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soundmanager = {}
soundmanager.queue = {}
soundmanager.playlist = {}
soundmanager.currentsong = -1
local function shuffle(a, b)
return math.random(1, 2) == 1
end
-- 魔法をかけます。
function soundmanager:play(sndData)
-- 音声データからソースを作成します。
local src = love.audio.newSource(sndData, "static")
-- キューへ配置します。
table.insert(self.queue, src)
-- そして再生します。
love.audio.play(src)
end
-- 音楽に魔法をかけます。
function soundmanager:playMusic(first, ...)
-- 現在再生中の音楽を全て停止します。
for i, v in ipairs(self.playlist) do
love.audio.stop(v)
end
-- テーブルまたは vararg が渡された場合に、
-- 再生リストを組み立てるかどうか決定します。
if type(first) == "table" then
self.playlist = first
else
self.playlist = {first, ...}
end
self.currentsong = 1
-- 再生
love.audio.play(self.playlist[1])
end
-- なにかをかき混ぜます'
function soundmanager:shuffle(first, ...)
local playlist
if type(first) == "table" then
playlist = first
else
playlist = {first, ...}
end
table.sort(playlist, shuffle)
return unpack(playlist)
end
-- 更新
function soundmanager:update(dt)
-- キューにある音声の再生が完了した、および削除されたか確認します。
local removelist = {}
for i, v in ipairs(self.queue) do
if v:isStopped() then
table.insert(removelist, i)
end
end
-- ループにあるものは削除できないため、別のループを使用します。
for i, v in ipairs(removelist) do
table.remove(self.queue, v-i+1)
end
-- 必要であればプレイリストを進めます。
if self.currentsong ~= -1 and self.playlist and self.playlist[self.currentsong]:isStopped() then
self.currentsong = self.currentsong + 1
if self.currentsong > #self.playlist then
self.currentsong = 1
end
love.audio.play(self.playlist[self.currentsong])
end
end