/*******************************************************************************
* Copyright (c) 2013, Daniel Murphy
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
/*
* JBox2D - A Java Port of Erin Catto's Box2D
*
* JBox2D homepage: http://jbox2d.sourceforge.net/
* Box2D homepage: http://www.box2d.org
*
* This software is provided 'as-is', without any express or implied
* warranty. In no event will the authors be held liable for any damages
* arising from the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software
* in a product, an acknowledgment in the product documentation would be
* appreciated but is not required.
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
* 3. This notice may not be removed or altered from any source distribution.
*/
package org.jbox2d.testbed.tests;
import org.jbox2d.collision.shapes.CircleShape;
import org.jbox2d.collision.shapes.PolygonShape;
import org.jbox2d.common.MathUtils;
import org.jbox2d.common.Vec2;
import org.jbox2d.dynamics.Body;
import org.jbox2d.dynamics.BodyDef;
import org.jbox2d.dynamics.BodyType;
import org.jbox2d.dynamics.FixtureDef;
import org.jbox2d.dynamics.joints.ConstantVolumeJointDef;
import org.jbox2d.testbed.framework.TestbedTest;
public class BlobTest4 extends TestbedTest {
@Override
public float getDefaultCameraScale() {
return 20;
}
@Override
public boolean isSaveLoadEnabled() {
return true;
}
@Override
public void initTest(boolean deserialized) {
if (deserialized) {
return;
}
Body ground = null;
{
PolygonShape sd = new PolygonShape();
sd.setAsBox(50.0f, 0.4f);
BodyDef bd = new BodyDef();
bd.position.set(0.0f, 0.0f);
ground = getWorld().createBody(bd);
ground.createFixture(sd, 0f);
sd.setAsBox(0.4f, 50.0f, new Vec2(-10.0f, 0.0f), 0.0f);
ground.createFixture(sd, 0f);
sd.setAsBox(0.4f, 50.0f, new Vec2(10.0f, 0.0f), 0.0f);
ground.createFixture(sd, 0f);
}
ConstantVolumeJointDef cvjd = new ConstantVolumeJointDef();
float cx = 0.0f;
float cy = 10.0f;
float rx = 5.0f;
float ry = 5.0f;
int nBodies = 20;
float bodyRadius = 0.5f;
for (int i = 0; i < nBodies; ++i) {
float angle = MathUtils.map(i, 0, nBodies, 0, 2 * 3.1415f);
BodyDef bd = new BodyDef();
// bd.isBullet = true;
bd.fixedRotation = true;
float x = cx + rx * (float) Math.sin(angle);
float y = cy + ry * (float) Math.cos(angle);
bd.position.set(new Vec2(x, y));
bd.type = BodyType.DYNAMIC;
Body body = getWorld().createBody(bd);
FixtureDef fd = new FixtureDef();
CircleShape cd = new CircleShape();
cd.m_radius = bodyRadius;
fd.shape = cd;
fd.density = 1.0f;
body.createFixture(fd);
cvjd.addBody(body);
}
cvjd.frequencyHz = 10.0f;
cvjd.dampingRatio = 1.0f;
cvjd.collideConnected = false;
getWorld().createJoint(cvjd);
BodyDef bd2 = new BodyDef();
bd2.type = BodyType.DYNAMIC;
PolygonShape psd = new PolygonShape();
psd.setAsBox(3.0f, 1.5f, new Vec2(cx, cy + 15.0f), 0.0f);
bd2.position = new Vec2(cx, cy + 15.0f);
Body fallingBox = getWorld().createBody(bd2);
fallingBox.createFixture(psd, 1.0f);
}
@Override
public String getTestName() {
return "Blob Joint";
}
}