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* Copyright (c) 2011, Daniel Murphy
* All rights reserved.
*
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions in binary form must reproduce the above copyright
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* * Neither the name of the <organization> nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
/**
* Created at 1:13:43 AM Sep 3, 2010
*/
package org.jbox2d.testbed.tests;
import org.jbox2d.collision.shapes.CircleShape;
import org.jbox2d.collision.shapes.PolygonShape;
import org.jbox2d.common.Mat22;
import org.jbox2d.common.MathUtils;
import org.jbox2d.common.Transform;
import org.jbox2d.common.Vec2;
import org.jbox2d.dynamics.Body;
import org.jbox2d.dynamics.BodyDef;
import org.jbox2d.dynamics.BodyType;
import org.jbox2d.testbed.framework.TestbedTest;
/**
* @author Daniel Murphy
*/
public class CompoundShapesTest extends TestbedTest{
/**
* @see org.jbox2d.testbed.framework.TestbedTest#initTest()
*/
@Override
public void initTest() {
{
BodyDef bd = new BodyDef();
bd.position.set(0.0f, 0.0f);
Body body = m_world.createBody(bd);
PolygonShape shape = new PolygonShape();
shape.setAsEdge( new Vec2(50.0f, 0.0f), new Vec2(-50.0f, 0.0f));
body.createFixture(shape, 0.0f);
}
{
CircleShape circle1 = new CircleShape();
circle1.m_radius = 0.5f;
circle1.m_p.set(-0.5f, 0.5f);
CircleShape circle2 = new CircleShape();;
circle2.m_radius = 0.5f;
circle2.m_p.set(0.5f, 0.5f);
for (int i = 0; i < 10; ++i)
{
float x = MathUtils.randomFloat(-0.1f, 0.1f);
BodyDef bd = new BodyDef();
bd.type = BodyType.DYNAMIC;
bd.position.set(x + 5.0f, 1.05f + 2.5f * i);
bd.angle = MathUtils.randomFloat(-MathUtils.PI, MathUtils.PI);
Body body = m_world.createBody(bd);
body.createFixture(circle1, 2.0f);
body.createFixture(circle2, 0.0f);
}
}
{
PolygonShape polygon1 = new PolygonShape();
polygon1.setAsBox(0.25f, 0.5f);
PolygonShape polygon2 = new PolygonShape();
polygon2.setAsBox(0.25f, 0.5f, new Vec2(0.0f, -0.5f), 0.5f * MathUtils.PI);
for (int i = 0; i < 10; ++i)
{
float x = MathUtils.randomFloat(-0.1f, 0.1f);
BodyDef bd = new BodyDef();
bd.type = BodyType.DYNAMIC;
bd.position.set(x - 5.0f, 1.05f + 2.5f * i);
bd.angle = MathUtils.randomFloat(-MathUtils.PI, MathUtils.PI);
Body body = m_world.createBody(bd);
body.createFixture(polygon1, 2.0f);
body.createFixture(polygon2, 2.0f);
}
}
{
Transform xf1 = new Transform();
xf1.R.set(0.3524f * MathUtils.PI);
xf1.position.set(Mat22.mul(xf1.R, new Vec2(1.0f, 0.0f)));
Vec2[] vertices = new Vec2[3];
PolygonShape triangle1 = new PolygonShape();
vertices[0] = Transform.mul(xf1, new Vec2(-1.0f, 0.0f));
vertices[1] = Transform.mul(xf1, new Vec2(1.0f, 0.0f));
vertices[2] = Transform.mul(xf1, new Vec2(0.0f, 0.5f));
triangle1.set(vertices, 3);
Transform xf2 = new Transform();
xf2.R.set(-0.3524f * MathUtils.PI);
xf2.position.set(Mat22.mul(xf2.R, new Vec2(-1.0f, 0.0f)));
PolygonShape triangle2 = new PolygonShape();
vertices[0] = Transform.mul(xf2, new Vec2(-1.0f, 0.0f));
vertices[1] = Transform.mul(xf2, new Vec2(1.0f, 0.0f));
vertices[2] = Transform.mul(xf2, new Vec2(0.0f, 0.5f));
triangle2.set(vertices, 3);
for (int i = 0; i < 10; ++i)
{
float x = MathUtils.randomFloat(-0.1f, 0.1f);
BodyDef bd = new BodyDef();
bd.type = BodyType.DYNAMIC;
bd.position.set(x, 2.05f + 2.5f * i);
bd.angle = 0.0f;
Body body = m_world.createBody(bd);
body.createFixture(triangle1, 2.0f);
body.createFixture(triangle2, 2.0f);
}
}
{
PolygonShape bottom = new PolygonShape();
bottom.setAsBox( 1.5f, 0.15f );
PolygonShape left = new PolygonShape();
left.setAsBox(0.15f, 2.7f, new Vec2(-1.45f, 2.35f), 0.2f);
PolygonShape right = new PolygonShape();
right.setAsBox(0.15f, 2.7f, new Vec2(1.45f, 2.35f), -0.2f);
BodyDef bd = new BodyDef();
bd.type = BodyType.DYNAMIC;
bd.position.set( 0.0f, 2.0f );
Body body = m_world.createBody(bd);
body.createFixture(bottom, 4.0f);
body.createFixture(left, 4.0f);
body.createFixture(right, 4.0f);
}
}
/**
* @see org.jbox2d.testbed.framework.TestbedTest#getTestName()
*/
@Override
public String getTestName() {
return "Compound Shapes";
}
}
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