/*******************************************************************************
* Copyright 2011 See AUTHORS file.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
******************************************************************************/
/*
* Copyright 2010 Mario Zechner (contact@badlogicgames.com), Nathan Sweet (admin@esotericsoftware.com)
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS"
* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language
* governing permissions and limitations under the License.
*/
package com.badlogic.gdx.tests.box2d;
import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.physics.box2d.Body;
import com.badlogic.gdx.physics.box2d.BodyDef;
import com.badlogic.gdx.physics.box2d.BodyDef.BodyType;
import com.badlogic.gdx.physics.box2d.CircleShape;
import com.badlogic.gdx.physics.box2d.EdgeShape;
import com.badlogic.gdx.physics.box2d.FixtureDef;
import com.badlogic.gdx.physics.box2d.PolygonShape;
import com.badlogic.gdx.physics.box2d.World;
import com.badlogic.gdx.physics.box2d.joints.WeldJointDef;
public class Cantilever extends Box2DTest {
Body m_middle;
final int e_count = 8;
@Override
protected void createWorld (World world) {
Body ground;
{
BodyDef bd = new BodyDef();
ground = world.createBody(bd);
EdgeShape shape = new EdgeShape();
shape.set(new Vector2(-40, 0), new Vector2(40, 0));
ground.createFixture(shape, 0);
shape.dispose();
}
{
PolygonShape shape = new PolygonShape();
shape.setAsBox(0.5f, 0.125f);
FixtureDef fd = new FixtureDef();
fd.shape = shape;
fd.density = 20.0f;
WeldJointDef jd = new WeldJointDef();
Body prevBody = ground;
for (int i = 0; i < e_count; i++) {
BodyDef bd = new BodyDef();
bd.type = BodyType.DynamicBody;
bd.position.set(-14.5f + 1.0f * i, 5.0f);
Body body = world.createBody(bd);
body.createFixture(fd);
Vector2 anchor = new Vector2(-15.0f + 1 * i, 5.0f);
jd.initialize(prevBody, body, anchor);
world.createJoint(jd);
prevBody = body;
}
shape.dispose();
}
{
PolygonShape shape = new PolygonShape();
shape.setAsBox(0.5f, 0.125f);
FixtureDef fd = new FixtureDef();
fd.shape = shape;
fd.density = 20.0f;
WeldJointDef jd = new WeldJointDef();
Body prevBody = ground;
for (int i = 0; i < e_count; i++) {
BodyDef bd = new BodyDef();
bd.type = BodyType.DynamicBody;
bd.position.set(-14.5f + 1.0f * i, 15.0f);
bd.gravityScale = 10.0f;
Body body = world.createBody(bd);
body.createFixture(fd);
Vector2 anchor = new Vector2(-15.0f + 1.0f * i, 15.0f);
jd.initialize(prevBody, body, anchor);
world.createJoint(jd);
prevBody = body;
}
shape.dispose();
}
{
PolygonShape shape = new PolygonShape();
shape.setAsBox(0.5f, 0.125f);
FixtureDef fd = new FixtureDef();
fd.shape = shape;
fd.density = 20.0f;
WeldJointDef jd = new WeldJointDef();
Body prevBody = ground;
for (int i = 0; i < e_count; i++) {
BodyDef bd = new BodyDef();
bd.type = BodyType.DynamicBody;
bd.position.set(-4.5f + 1.0f * i, 5.0f);
Body body = world.createBody(bd);
body.createFixture(fd);
if (i > 0) {
Vector2 anchor = new Vector2(-5.0f + 1.0f * i, 5.0f);
jd.initialize(prevBody, body, anchor);
world.createJoint(jd);
}
prevBody = body;
}
shape.dispose();
}
{
PolygonShape shape = new PolygonShape();
shape.setAsBox(0.5f, 0.125f);
FixtureDef fd = new FixtureDef();
fd.shape = shape;
fd.density = 20.0f;
WeldJointDef jd = new WeldJointDef();
Body prevBody = ground;
for (int i = 0; i < e_count; i++) {
BodyDef bd = new BodyDef();
bd.type = BodyType.DynamicBody;
bd.position.set(5.5f + 1.0f * i, 10.0f);
bd.gravityScale = 10.0f;
Body body = world.createBody(bd);
body.createFixture(fd);
if (i > 0) {
Vector2 anchor = new Vector2(5.0f + 1.0f * i, 10.0f);
jd.initialize(prevBody, body, anchor);
world.createJoint(jd);
}
prevBody = body;
}
shape.dispose();
}
for (int i = 0; i < 2; i++) {
Vector2[] vertices = new Vector2[3];
vertices[0] = new Vector2(-0.5f, 0);
vertices[1] = new Vector2(0.5f, 0);
vertices[2] = new Vector2(0, 1.5f);
PolygonShape shape = new PolygonShape();
shape.set(vertices);
FixtureDef fd = new FixtureDef();
fd.shape = shape;
fd.density = 1.0f;
BodyDef bd = new BodyDef();
bd.type = BodyType.DynamicBody;
bd.position.set(-8.0f + 8.0f * i, 12.0f);
Body body = world.createBody(bd);
body.createFixture(fd);
shape.dispose();
}
for (int i = 0; i < 2; i++) {
CircleShape shape = new CircleShape();
shape.setRadius(0.5f);
FixtureDef fd = new FixtureDef();
fd.shape = shape;
fd.density = 1.0f;
BodyDef bd = new BodyDef();
bd.type = BodyType.DynamicBody;
bd.position.set(-6.0f + 6.0f * i, 10.0f);
Body body = world.createBody(bd);
body.createFixture(fd);
shape.dispose();
}
}
}