Box2D Forums

package org.jbox2d.testbed.tests;

import org.jbox2d.collision.shapes.PolygonShape;
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;

public class MovingPlatformTeste extends TestbedTest {

   @Override
   public void initTest(boolean argDeserialized) {
        setTitle("Moving Platform Test");
      
        getWorld().setGravity(new Vec2(0, -100));
      
        PolygonShape polygonShape = new PolygonShape();
        polygonShape.setAsBox(10, 1);
       
        BodyDef bodyDef = new BodyDef();
        bodyDef.type = BodyType.KINEMATIC;
        bodyDef.position.set(0, 20);
        bodyDef.allowSleep = false;
        Body body = getWorld().createBody(bodyDef);
        body.createFixture(polygonShape, 5.0f);
        body.setLinearVelocity(new Vec2 (0.0f, -10.0f));
       
        polygonShape = new PolygonShape ();
        polygonShape.setAsBox(1, 1);
       
        bodyDef = new BodyDef ();
        bodyDef.type = BodyType.DYNAMIC;
        bodyDef.position.set(0, 100);
        bodyDef.allowSleep = false;
        body = getWorld().createBody(bodyDef);
        body.createFixture(polygonShape, 5.0f);
   }

   @Override
   public String getTestName() {
      return "Moving Platform Test";
   }

}