42 lines
652 B
JavaScript
42 lines
652 B
JavaScript
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class Time
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{
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constructor()
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{
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/**
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* @type {Number}
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*/
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this._lastFrame = undefined;
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/**
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* @type {Number}
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*/
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this._currentFrame = undefined;
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}
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deltaTime()
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{
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if (this._lastFrame === undefined)
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return 0;
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return (this._currentFrame - this._lastFrame);
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}
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deltaTimeSecond()
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{
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return this.deltaTime() / 1000;
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}
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get_fps()
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{
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return 1 / this.deltaTimeSecond();
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}
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new_frame()
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{
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this._lastFrame = this._currentFrame;
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this._currentFrame = Date.now();
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}
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}
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export { Time }; |