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Copy path_Chainable.js
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92 lines (75 loc) · 1.67 KB
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(function(){
var Chainable = function(engine){
this.engine = engine;
this._chain = [];
this._updateTimer = this._updateTimer.bind(this);
this._cycle = this._cycle.bind(this);
};
Chainable.prototype._running = false;
Chainable.prototype._updateTimer = function(tick){
this._timer += tick;
if (this._timer >= this._timerMax) {
this.resetTimer();
this._cycle();
}
};
Chainable.prototype.resetTimer = function(){
this.engine.updateChainTimer = undefined;
this._timer = 0;
this._timerMax = 0;
return this;
};
Chainable.prototype.start = function(){
if (this._running || !this._chain.length) {
return this;
}
this._running = true;
return this._cycle();
};
Chainable.prototype.reset = function(){
if (!this._running) {
return this;
}
this.resetTimer();
this._timer = 0;
this._running = false;
return this;
};
Chainable.prototype._cycle = function(){
var current;
if (!this._chain.length) {
return this.reset();
}
current = this._chain.shift();
if (current.type === 'function') {
current.func.apply(current.scope, current.args);
current = null;
return this._cycle();
}
if (current.type === 'wait') {
this.resetTimer();
// Convert timer to seconds
this._timerMax = current.time / 1000;
this.engine.updateChainTimer = this._updateTimer;
current = null;
}
return this;
};
Chainable.prototype.then = Chainable.prototype.exec = function(func, scope, args){
this._chain.push({
type : 'function',
func : func,
scope : scope || window,
args : args || []
});
return this.start();
};
Chainable.prototype.wait = function(time){
this._chain.push({
type : 'wait',
time : time
});
return this.start();
};
window.Chainable = Chainable;
})();