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Anim.js
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Anim.js
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(function (Ω) {
"use strict";
var Anim = Ω.Class.extend({
init: function (name, sheet, speed, frames, cb) {
this.name = name;
this.sheet = sheet;
this.frames = frames;
this.speed = speed;
this.cb = cb;
this.scale = 1;
this.changed = false;
this.rewound = false;
this.reset();
},
tick: function () {
var diff = Ω.utils.now() - this.frameTime;
this.changed = false;
this.rewound = false;
if (diff > this.speed) {
this.frameTime = Ω.utils.now() + (Math.min(this.speed, diff - this.speed));
if (++this.curFrame > this.frames.length - 1) {
this.curFrame = 0;
this.rewound = true;
this.cb && this.cb();
};
this.changed = true;
}
},
reset: function () {
this.curFrame = 0;
this.frameTime = Ω.utils.now();
},
render: function (gfx, x, y) {
this.sheet.render(
gfx,
this.frames[this.curFrame][0],
this.frames[this.curFrame][1],
x,
y,
1,
1,
this.scale);
}
});
Ω.Anim = Anim;
}(window.Ω));