Initial creation of j3d-examples sources in CVS repository

1 files changed, 97 insertions, 0 deletions

diff --git a/src/PickTest/MorphingBehavior.java b/src/PickTest/MorphingBehavior.java
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+/*
+ * $RCSfile$
+ *
+ * Copyright (c) 2004 Sun Microsystems, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistribution of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistribution in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in
+ *   the documentation and/or other materials provided with the
+ *   distribution.
+ *
+ * Neither the name of Sun Microsystems, Inc. or the names of
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * This software is provided "AS IS," without a warranty of any
+ * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
+ * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
+ * EXCLUDED. SUN MICROSYSTEMS, INC. ("SUN") AND ITS LICENSORS SHALL
+ * NOT BE LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF
+ * USING, MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS
+ * DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE FOR
+ * ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL,
+ * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND
+ * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR
+ * INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGES.
+ *
+ * You acknowledge that this software is not designed, licensed or
+ * intended for use in the design, construction, operation or
+ * maintenance of any nuclear facility.
+ *
+ * $Revision$
+ * $Date$
+ * $State$
+ */
+
+import java.util.Enumeration;
+import javax.media.j3d.*;
+import javax.vecmath.*;
+
+// User-defined morphing behavior class
+public class MorphingBehavior extends Behavior {
+
+    Alpha alpha;
+    Morph morph;
+    double weights[];
+
+    WakeupOnElapsedFrames w = new WakeupOnElapsedFrames(0);
+
+    // Override Behavior's initialize method to setup wakeup criteria
+    public void initialize() {
+	alpha.setStartTime(System.currentTimeMillis());
+
+	// Establish initial wakeup criteria
+	wakeupOn(w);
+    }
+
+    // Override Behavior's stimulus method to handle the event
+    public void processStimulus(Enumeration criteria) {
+
+	// NOTE: This assumes 3 objects.  It should be generalized to
+	// "n" objects.
+
+	double val = alpha.value();
+	if (val < 0.5) {
+	    double a = val * 2.0;
+	    weights[0] = 1.0 - a;
+	    weights[1] = a;
+	    weights[2] = 0.0;
+	}
+	else {
+	    double a = (val - 0.5) * 2.0;
+	    weights[0] = 0.0;
+	    weights[1] = 1.0f - a;
+	    weights[2] = a;
+	}
+
+	morph.setWeights(weights);
+
+	// Set wakeup criteria for next time
+	wakeupOn(w);
+    }
+
+    public MorphingBehavior(Alpha a, Morph m) {
+	alpha = a;
+	morph = m;
+	weights = morph.getWeights();
+    }
+}