local mousePos={}
qx,qy=100,100
playSound=false
function 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<mousePos.legth;i+=2)for i=1,#mousePos,2 dolove.graphics.point(mousePos[i],mousePos[i+1])end
end

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")) thenqy=qy-5endif(love.keyboard.isDown("down")) thenqy=qy+5endif(love.keyboard.isDown("left")) thenqx=qx-5endif(love.keyboard.isDown("right")) thenqx=qx+5end--检测小方块是否运动到窗口边界if(qx>=780)thenqx=780playSound=trueelseif(qx<0)thenqx=0playSound=trueendif(qy>=580)thenqy=580playSound=trueelseif(qy<=0)thenqy=0playSound=trueendif(playSound==true) thenlove.audio.play(sound)playSound=falseendendfunction 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
--~     end
end