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package tesseract.objects;
import java.awt.Color;
import javax.media.j3d.Appearance;
import javax.media.j3d.Geometry;
import javax.media.j3d.Material;
import javax.media.j3d.Node;
import javax.vecmath.Color3f;
import javax.vecmath.Vector3f;
import com.sun.j3d.utils.geometry.Primitive;
public class Box extends PhysicalObject {
/**
* default color.
*/
public static final Color3f DEFAULT_COLOR = new Color3f(0.7f, 1, 0.7f);
/**
* Object color.
*/
private final Color3f myColor;
/**
*
* @param width
* @param height
* @param depth
* @param position
*/
public Box(float width, float height, float depth, Vector3f position) {
this(1, width, height, depth, position, DEFAULT_COLOR.get());
}
public Box(float mass, float width, float height, float depth, Vector3f position, Color theColor) {
super(position, mass);
myColor = new Color3f(theColor);
setShape(createShape(width, height, depth));
previousPosition.set(position);
if (inverseMass != 0) {
inverseInertiaTensor.m00 = 1f / 12 / inverseMass * (height * height + depth * depth);
inverseInertiaTensor.m11 = 1f / 12 / inverseMass * (width * width + depth * depth);
inverseInertiaTensor.m22 = 1f / 12 / inverseMass * (width * width + height * height);
inverseInertiaTensor.invert();
}
updateTransformGroup();
}
protected Node createShape(float width, float height, float depth) {
Appearance appearance = new Appearance();
Material material = new Material();
material.setDiffuseColor(myColor);
appearance.setMaterial(material);
return new com.sun.j3d.utils.geometry.Box(width / 2, height / 2, depth / 2, appearance);
}
}
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