代码提交

Author: sharpxiajun

njs/AnimationClipCreator.js

@@ -0,0 +1,114 @@
+/**
+ *
+ * Creator of typical test AnimationClips / KeyframeTracks
+ *
+ * @author Ben Houston / http://clara.io/
+ * @author David Sarno / http://lighthaus.us/
+ */
+
+THREE.AnimationClipCreator = function () {};
+
+THREE.AnimationClipCreator.CreateRotationAnimation = function ( period, axis ) {
+
+	var times = [ 0, period ], values = [ 0, 360 ];
+
+	axis = axis || 'x';
+	var trackName = '.rotation[' + axis + ']';
+
+	var track = new THREE.NumberKeyframeTrack( trackName, times, values );
+
+	return new THREE.AnimationClip( null, period, [ track ] );
+
+};
+
+THREE.AnimationClipCreator.CreateScaleAxisAnimation = function ( period, axis ) {
+
+	var times = [ 0, period ], values = [ 0, 1 ];
+
+	axis = axis || 'x';
+	var trackName = '.scale[' + axis + ']';
+
+	var track = new THREE.NumberKeyframeTrack( trackName, times, values );
+
+	return new THREE.AnimationClip( null, period, [ track ] );
+
+};
+
+THREE.AnimationClipCreator.CreateShakeAnimation = function ( duration, shakeScale ) {
+
+	var times = [], values = [], tmp = new THREE.Vector3();
+
+	for ( var 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 );
+
+	}
+
+	var trackName = '.position';
+
+	var track = new THREE.VectorKeyframeTrack( trackName, times, values );
+
+	return new THREE.AnimationClip( null, duration, [ track ] );
+
+};
+
+
+THREE.AnimationClipCreator.CreatePulsationAnimation = function ( duration, pulseScale ) {
+
+	var times = [], values = [], tmp = new THREE.Vector3();
+
+	for ( var i = 0; i < duration * 10; i ++ ) {
+
+		times.push( i / 10 );
+
+		var scaleFactor = Math.random() * pulseScale;
+		tmp.set( scaleFactor, scaleFactor, scaleFactor ).
+			toArray( values, values.length );
+
+	}
+
+	var trackName = '.scale';
+
+	var track = new THREE.VectorKeyframeTrack( trackName, times, values );
+
+	return new THREE.AnimationClip( null, duration, [ track ] );
+
+};
+
+
+THREE.AnimationClipCreator.CreateVisibilityAnimation = function ( duration ) {
+
+	var times = [ 0, duration / 2, duration ], values = [ true, false, true ];
+
+	var trackName = '.visible';
+
+	var track = new THREE.BooleanKeyframeTrack( trackName, times, values );
+
+	return new THREE.AnimationClip( null, duration, [ track ] );
+
+};
+
+
+THREE.AnimationClipCreator.CreateMaterialColorAnimation = function ( duration, colors ) {
+
+	var times = [], values = [],
+		timeStep = duration / colors.length;
+
+	for ( var i = 0; i <= colors.length; i ++ ) {
+
+		times.push( i * timeStep );
+		values.push( colors[ i % colors.length ] );
+
+	}
+
+	var trackName = '.material[0].color';
+
+	var track = new THREE.ColorKeyframeTrack( trackName, times, values );
+
+	return new THREE.AnimationClip( null, duration, [ track ] );
+
+};