1:import java.util.*;
   2:import javax.media.j3d.*;
   3:
   4:public class MorphBehavior extends Behavior{
   5:        
   6:        private Morph targetMorph;
   7:        private Alpha alpha;
   8:        private double[] weights = {0,0};
   9:        private WakeupCondition trigger = new WakeupOnElapsedFrames(0);
  10:        
  11:        //create MorphBeavior
  12:        MorphBehavior(Morph targetMorph, Alpha alpha){
  13:                this.targetMorph = targetMorph;
  14:                this.alpha = alpha;
  15:        }
  16:        
  17:        public void initialize(){
  18:                //set initial wakeup condition
  19:                this.wakeupOn(trigger);
  20:        }
  21:        
  22:        public void processStimulus(Enumeration criteria){
  23:                
  24:                weights[0] = 0; weights[1] = 0; 
  25:                
  26:                float alphaValue = 2f*alpha.value();    //get alpha
  27:                int alphaIndex = (int) alphaValue;      //which Geom object
  28:                weights[alphaIndex] = (double) alphaValue - (double) alphaIndex;
  29:                if(alphaIndex < 1){
  30:                        weights[alphaIndex + 1] = 1.0 - weights[alphaIndex];
  31:                }else{
  32:                        weights[0] = 1.0 - weights[alphaIndex];
  33:                }
  34:                targetMorph.setWeights(weights);
  35:                
  36:                this.wakeupOn(trigger);         //set next wakeup condition
  37:        }
  38:        
  39:}