love2d的输入包括love.keyboard,love.mouse,love.joystick(手柄)

键盘:

按键检测是否按下可以用love.keyboard.isDown("键值"),如love.keyboard.isDown("up"),

检测向上键是否按下,按下返回真.

还可以用love.keyboard.setKeyRepeat(delay, interval)设置重复按键的延时和间隔,

当延时(delay)设为0时,不允许按住一个键不放,interval没明白怎么回事.如果你知道,请告诉我.

也可以在love.keypressed(key)回调函数中检测是哪个按键(key),我试了一下,不支持按住一个

键不放.

鼠标:

鼠标在love.mouse模块中,函数很多,可以自己查看wiki

手柄:

手柄在love.joystick模块中,由于没手柄,没有试验,与键盘,鼠标应该类似.

love2d的音乐功能在love.audio模块里,底层使用openal,支持20多种音乐格式.

音乐只有一种数据类型"source".使用love.audio.newSource可以创建一个source对象

sound = love.audio.newSource("pling.wav", "static") --有static和stream两种模式,分别对应短和长的音乐

默认是stream模式.

wiki上两种模式的对比如下,可见对长音乐应该使用strem模式

Keep in mind that, if you pass love.audio.newSource "static" as a second argument,

the sound file will be expanded into memory, so if you load a 5MB compressed .ogg file

that way, it would consume ~50MB RAM when fully decompressed. Consider not using "static"

in such cases.

接着可以使用source对象的方法控制音乐的一些效果如:

sound:setVolume(0.9) -- 音量为90%

sound:setPitch(0.5) -- 音调为50%,类似频率的高低

下面是我的示例程序,演示了鼠标轨迹的捕捉和音乐的播放.

tutor3.lua

local mousePos={}qx,qy=100,100playSound=falsefunction drawQuad(x,y,width,height)    love.graphics.setColor(0, 255, 0)    love.graphics.quad("fill",x,y,x+width,y,x+width,y+height,x,y+height)endfunction drawMouseTrack()    love.graphics.setPointSize( 3 )    local x, y = love.mouse.getPosition( )    table.insert(mousePos,x)    table.insert(mousePos,y)    love.graphics.setColor(255,0,0)    --取出mousePos table里的元素,下面即c语言的for(int i=1,i

main.lua

require("tutor03")function love.load()sound = love.audio.newSource("assets/sound.wav", "static")music = love.audio.newSource("assets/music.mp3") --默认是stream,动态加载,适合播放时间长的音乐music:setVolume(0.5)love.audio.play(music)endfunction love.draw()    drawMouseTrack()    drawQuad(qx,qy,20,20)    love.graphics.print("qx=" .. qx .. "  qy=" .. qy,20,20)endfunction love.update(dt)    --按键检测    if(love.keyboard.isDown("up")) then    qy=qy-5    end    if(love.keyboard.isDown("down")) then    qy=qy+5    end    if(love.keyboard.isDown("left")) then    qx=qx-5    end    if(love.keyboard.isDown("right")) then    qx=qx+5    end    --检测小方块是否运动到窗口边界    if(qx>=780)then    qx=780    playSound=true    elseif(qx<0)then    qx=0    playSound=true    end    if(qy>=580)then    qy=580    playSound=true    elseif(qy<=0)then    qy=0    playSound=true    end    if(playSound==true) then        love.audio.play(sound)        playSound=false    endendfunction love.keypressed(key)--~     if(key=="up") then--~     qy=qy-5--~     elseif(key=="down") then--~     qy=qy+5--~     elseif(key=="left") then--~     qx=qx-5--~     elseif(key=="right") then--~     qx=qx+5--~     endend

源码下载