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