57 lines
761 B
JavaScript
57 lines
761 B
JavaScript
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/**
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* @author mrdoob / http://mrdoob.com/
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*/
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function WebGLAnimation() {
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var context = null;
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var isAnimating = false;
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var animationLoop = null;
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function onAnimationFrame( time, frame ) {
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if ( isAnimating === false ) return;
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animationLoop( time, frame );
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context.requestAnimationFrame( onAnimationFrame );
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}
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return {
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start: function () {
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if ( isAnimating === true ) return;
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if ( animationLoop === null ) return;
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context.requestAnimationFrame( onAnimationFrame );
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isAnimating = true;
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},
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stop: function () {
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isAnimating = false;
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},
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setAnimationLoop: function ( callback ) {
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animationLoop = callback;
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},
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setContext: function ( value ) {
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context = value;
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}
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};
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}
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export { WebGLAnimation };
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