added jsm folder

jsm/animation/AnimationClipCreator.js

@@ -0,0 +1,114 @@
+
+AnimationClip = window.THREE.AnimationClip
+BooleanKeyframeTrack = window.THREE.AnimationClip
+ColorKeyframeTrack = window.THREE.AnimationClip
+NumberKeyframeTrack = window.THREE.AnimationClip
+Vector3 = window.THREE.AnimationClip
+VectorKeyframeTrack = window.THREE.AnimationClip
+
+
+class AnimationClipCreator {
+
+	static CreateRotationAnimation( period, axis = 'x' ) {
+
+		const times = [ 0, period ], values = [ 0, 360 ];
+
+		const trackName = '.rotation[' + axis + ']';
+
+		const track = new NumberKeyframeTrack( trackName, times, values );
+
+		return new AnimationClip( null, period, [ track ] );
+
+	}
+
+	static CreateScaleAxisAnimation( period, axis = 'x' ) {
+
+		const times = [ 0, period ], values = [ 0, 1 ];
+
+		const trackName = '.scale[' + axis + ']';
+
+		const track = new NumberKeyframeTrack( trackName, times, values );
+
+		return new AnimationClip( null, period, [ track ] );
+
+	}
+
+	static CreateShakeAnimation( duration, shakeScale ) {
+
+		const times = [], values = [], tmp = new Vector3();
+
+		for ( let i = 0; i < duration * 10; i ++ ) {
+
+			times.push( i / 10 );
+
+			tmp.set( Math.random() * 2.0 - 1.0, Math.random() * 2.0 - 1.0, Math.random() * 2.0 - 1.0 ).
+				multiply( shakeScale ).
+				toArray( values, values.length );
+
+		}
+
+		const trackName = '.position';
+
+		const track = new VectorKeyframeTrack( trackName, times, values );
+
+		return new AnimationClip( null, duration, [ track ] );
+
+	}
+
+	static CreatePulsationAnimation( duration, pulseScale ) {
+
+		const times = [], values = [], tmp = new Vector3();
+
+		for ( let i = 0; i < duration * 10; i ++ ) {
+
+			times.push( i / 10 );
+
+			const scaleFactor = Math.random() * pulseScale;
+			tmp.set( scaleFactor, scaleFactor, scaleFactor ).
+				toArray( values, values.length );
+
+		}
+
+		const trackName = '.scale';
+
+		const track = new VectorKeyframeTrack( trackName, times, values );
+
+		return new AnimationClip( null, duration, [ track ] );
+
+	}
+
+	static CreateVisibilityAnimation( duration ) {
+
+		const times = [ 0, duration / 2, duration ], values = [ true, false, true ];
+
+		const trackName = '.visible';
+
+		const track = new BooleanKeyframeTrack( trackName, times, values );
+
+		return new AnimationClip( null, duration, [ track ] );
+
+	}
+
+	static CreateMaterialColorAnimation( duration, colors ) {
+
+		const times = [], values = [],
+			timeStep = duration / colors.length;
+
+		for ( let i = 0; i <= colors.length; i ++ ) {
+
+			times.push( i * timeStep );
+			values.push( colors[ i % colors.length ] );
+
+		}
+
+		const trackName = '.material[0].color';
+
+		const track = new ColorKeyframeTrack( trackName, times, values );
+
+		return new AnimationClip( null, duration, [ track ] );
+
+	}
+
+}
+
+window.THREE.AnimationClipCreator = AnimationClipCreator