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      1 /*
      2  * To change this template, choose Tools | Templates
      3  * and open the template in the editor.
      4  */
      5 package jme3test.bullet;
      6 
      7 import com.jme3.app.SimpleApplication;
      8 import com.jme3.bullet.BulletAppState;
      9 import com.jme3.bullet.PhysicsSpace;
     10 import com.jme3.bullet.collision.shapes.MeshCollisionShape;
     11 import com.jme3.bullet.collision.shapes.PlaneCollisionShape;
     12 import com.jme3.bullet.collision.shapes.SphereCollisionShape;
     13 import com.jme3.bullet.control.RigidBodyControl;
     14 import com.jme3.math.Plane;
     15 import com.jme3.math.Vector3f;
     16 import com.jme3.scene.Node;
     17 import com.jme3.scene.shape.Sphere;
     18 
     19 /**
     20  *
     21  * @author Nehon
     22  */
     23 public class TestKinematicAddToPhysicsSpaceIssue extends SimpleApplication {
     24 
     25     public static void main(String[] args) {
     26         TestKinematicAddToPhysicsSpaceIssue app = new TestKinematicAddToPhysicsSpaceIssue();
     27         app.start();
     28     }
     29     BulletAppState bulletAppState;
     30 
     31     @Override
     32     public void simpleInitApp() {
     33 
     34         bulletAppState = new BulletAppState();
     35         stateManager.attach(bulletAppState);
     36         bulletAppState.getPhysicsSpace().enableDebug(assetManager);
     37         // Add a physics sphere to the world
     38         Node physicsSphere = PhysicsTestHelper.createPhysicsTestNode(assetManager, new SphereCollisionShape(1), 1);
     39         physicsSphere.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(3, 6, 0));
     40         rootNode.attachChild(physicsSphere);
     41 
     42         //Setting the rigidBody to kinematic before adding it to the physic space
     43         physicsSphere.getControl(RigidBodyControl.class).setKinematic(true);
     44         //adding it to the physic space
     45         getPhysicsSpace().add(physicsSphere);
     46         //Making it not kinematic again, it should fall under gravity, it doesn't
     47         physicsSphere.getControl(RigidBodyControl.class).setKinematic(false);
     48 
     49         // Add a physics sphere to the world using the collision shape from sphere one
     50         Node physicsSphere2 = PhysicsTestHelper.createPhysicsTestNode(assetManager, new SphereCollisionShape(1), 1);
     51         physicsSphere2.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(5, 6, 0));
     52         rootNode.attachChild(physicsSphere2);
     53 
     54         //Adding the rigid body to physic space
     55         getPhysicsSpace().add(physicsSphere2);
     56         //making it kinematic
     57         physicsSphere2.getControl(RigidBodyControl.class).setKinematic(false);
     58         //Making it not kinematic again, it works properly, the rigidbody is affected by grvity.
     59         physicsSphere2.getControl(RigidBodyControl.class).setKinematic(false);
     60 
     61 
     62 
     63         // an obstacle mesh, does not move (mass=0)
     64         Node node2 = PhysicsTestHelper.createPhysicsTestNode(assetManager, new MeshCollisionShape(new Sphere(16, 16, 1.2f)), 0);
     65         node2.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(2.5f, -4, 0f));
     66         rootNode.attachChild(node2);
     67         getPhysicsSpace().add(node2);
     68 
     69         // the floor mesh, does not move (mass=0)
     70         Node node3 = PhysicsTestHelper.createPhysicsTestNode(assetManager, new PlaneCollisionShape(new Plane(new Vector3f(0, 1, 0), 0)), 0);
     71         node3.getControl(RigidBodyControl.class).setPhysicsLocation(new Vector3f(0f, -6, 0f));
     72         rootNode.attachChild(node3);
     73         getPhysicsSpace().add(node3);
     74 
     75     }
     76 
     77     private PhysicsSpace getPhysicsSpace() {
     78         return bulletAppState.getPhysicsSpace();
     79     }
     80 }
     81