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var gume = (function($){ | |
var can, ctx, plas, me, ks, ysp; | |
var con={lk:65,rk:68,uk:87,sth:20,stw:200, grav: .3} | |
function init(){ | |
plas=[]; | |
ks={}; | |
ysp=con.grav; | |
if($('#gume')) $('#gume').remove(); | |
can=$('<canvas>').attr('id', 'gume').attr('width', con.stw).attr('height', con.sth); | |
can.css('position', 'absolute').css('top', 0).css('left', 0).css('z-index', 100000); | |
$('body').append(can); | |
ctx=can.get(0).getContext('2d'); | |
me=new Pla("rgba(255, 0, 0, 0.5)"); | |
plas.push(me); | |
skb(); | |
setInterval(up, 1000/50); | |
} | |
function skb(){ | |
var ooku=(typeof window.onkeyup === 'function') ? window.onkeyup : function(){}; | |
var ookd=(typeof window.onkeydown === 'function') ? window.onkeydown : function(){}; | |
window.onkeyup=function(e){ if(e){ks[''+e.keyCode]=false;}ooku();} | |
window.onkeydown=function(e){if(e){ks[''+e.keyCode]=true;}ookd();} | |
} | |
function Pla(c){ | |
this.col=c; | |
this.pos=[Math.floor(Math.random(5)*con.stw),0/*con.sth-1*/]; | |
} | |
function ju(){ | |
ysp=-2.5; | |
} | |
function ren(){ | |
var x; | |
ctx.clearRect(0, 0, ctx.canvas.width, ctx.canvas.height); | |
for(x in plas){ | |
ctx.fillStyle=plas[x].col; | |
ctx.fillRect(plas[x].pos[0],plas[x].pos[1],1,1); | |
} | |
} | |
function up(){ | |
switch(true){ | |
case ks[con.lk] && ks[con.rk]: | |
break; | |
case ks[con.uk] && me.pos[1] == con.sth-1: | |
ju(); break; | |
case ks[con.lk] && me.pos[0]>0: | |
--me.pos[0]; break; | |
case ks[con.rk] && me.pos[0]<con.stw-1: | |
++me.pos[0]; break; | |
default: | |
break; | |
} | |
if(me.pos[1] < con.sth-1) ysp+=con.grav; | |
me.pos[1]=Math.round(me.pos[1]+ysp); | |
if(me.pos[1] > con.sth-1) { | |
me.pos[1] = con.sth-1; | |
ysp=con.grav; | |
} | |
ren(); | |
} | |
init(); | |
} | |
)(jQuery); |
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$(document).ready(function(){ $('body').append($('<script>').attr('type', 'text/javascript').attr('src', 'gume.js')); }) |
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