JBox2DBody.java

/*
 *
 * (c)2010 Lein-Mathisen Digital
 * http://lmdig.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  
 *
 */


package com.kristianlm.robotanks.box2dbridge.jbox2d;

import org.jbox2d.collision.FilterData;
import org.jbox2d.collision.MassData;
import org.jbox2d.collision.shapes.PolygonDef;
import org.jbox2d.collision.shapes.Shape;
import org.jbox2d.common.Vec2;
import org.jbox2d.dynamics.Body;

import android.util.Log;

import com.kristianlm.robotanks.box2dbridge.IBody;
import com.kristianlm.robotanks.box2dbridge.IShape;

public class JBox2DBody implements IBody {

	Body body;

	public JBox2DBody(Body b) {
		body = b;
	}

	@Override
	public float getInertiaInv() {
		return body.m_invI;
	}

	@Override
	public IShape createBox(float halfWidth, float halfHeight, float x,
			float y, float density, float angle) {

		PolygonDef pd = new PolygonDef();
		pd.density = density;

		Vec2 center = new Vec2(x, y);
		pd.setAsBox(halfWidth, halfHeight, center, angle);

		// System.out.println("created shape with density " + pd.density);

		Shape shape = body.createShape(pd);
		return new JBox2DShape(this, shape);

	}

	@Override
	public void refilter(int categoryBits, int maskBits, int groupIndex) {

		FilterData fd = new FilterData();
		fd.categoryBits = categoryBits;
		fd.maskBits = maskBits;
		fd.groupIndex = groupIndex;

		Shape shapeList = body.getShapeList();
		if(shapeList != null)
			shapeList.setFilterData(fd);

		body.getWorld().refilter(body.getShapeList());
	}

	@Override
	public FilterData getFilterData() {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public void refilter() {
		FilterData fd = new FilterData();

		fd.categoryBits = 0x01;
		fd.maskBits = 0xFF;
		fd.groupIndex = 0;
		body.getShapeList().setFilterData(fd);

		body.getWorld().refilter(body.getShapeList());

	}

	@Override
	public void applyForce(Vec2 force, Vec2 point) {
		body.applyForce(force, point);
	}

	@Override
	public void applyTorque(float t) {
		body.applyTorque(t);

	}

	@Override
	public float getAngle() {
		return body.getAngle();
	}

	@Override
	public float getAngularVelocity() {
		return body.getAngularVelocity();
	}

	@Override
	public Vec2 getLinearVelocity() {
		return body.getLinearVelocity();
	}

	@Override
	public Object getUserData() {
		return body.getUserData();
	}

	@Override
	public Vec2 getWorldCenter() {
		return body.getWorldCenter();
	}

	@Override
	public Vec2 getWorldDirection(Vec2 p) {
		return body.getWorldDirection(p);
	}

	@Override
	public void getWorldLocationToOut(Vec2 p, Vec2 q) {
		body.getWorldLocationToOut(p, q);
	}

	@Override
	public boolean isSleeping() {
		return body.isSleeping();
	}

	@Override
	public void setAngularDamping(float d) {
		body.setAngularDamping(d);

	}

	@Override
	public void setLinearDamping(float d) {
		body.setLinearDamping(d);
	}

	@Override
	public void setMassFromShapes() {
		body.setMassFromShapes();
		Log.e("pg", "SET MASS FROM SHAPES");
		Thread.dumpStack();

	}

	@Override
	public void destroyShape(IShape shape) {
		if (!(shape instanceof JBox2DShape))
			return;

		JBox2DShape s = (JBox2DShape) shape;
		body.destroyShape(s.shape);
	}

	@Override
	public void setPosition(Vec2 pos) {
		body.setXForm(pos, body.getAngle());
		
	}

	public Body getBody() {
		return body;
	}
}