Hey monkeys. I’m having an issue with my physics: I can place objects down and add them to a node. Then I use Geometry Batching on that node, and I create a static rigid body of that object and add it to the physics space. The character control interacts with it fine, but if a dynamic rigid body comes into contact with it it just disappears. I wrote up a test case to show this… I pretty much modified TestWalkingChar, so if you’re hooked up to the testdata jar then the assets and everything should work. Left click to add a ninja to the scene, and the monkey head should roll towards it and disappear (the monkey head should disappear, not the ninja).
[java]
package Test;
import com.jme3.animation.AnimChannel;
import com.jme3.animation.AnimControl;
import com.jme3.animation.AnimEventListener;
import com.jme3.animation.LoopMode;
import com.jme3.app.SimpleApplication;
import com.jme3.bullet.BulletAppState;
import com.jme3.bullet.PhysicsSpace;
import com.jme3.bullet.collision.PhysicsCollisionEvent;
import com.jme3.bullet.collision.PhysicsCollisionListener;
import com.jme3.bullet.collision.shapes.CapsuleCollisionShape;
import com.jme3.bullet.collision.shapes.SphereCollisionShape;
import com.jme3.bullet.control.CharacterControl;
import com.jme3.bullet.control.RigidBodyControl;
import com.jme3.bullet.util.CollisionShapeFactory;
import com.jme3.collision.CollisionResults;
import com.jme3.effect.ParticleEmitter;
import com.jme3.effect.ParticleMesh.Type;
import com.jme3.effect.shapes.EmitterSphereShape;
import com.jme3.input.ChaseCamera;
import com.jme3.input.KeyInput;
import com.jme3.input.MouseInput;
import com.jme3.input.controls.ActionListener;
import com.jme3.input.controls.KeyTrigger;
import com.jme3.input.controls.MouseButtonTrigger;
import com.jme3.light.DirectionalLight;
import com.jme3.material.Material;
import com.jme3.math.ColorRGBA;
import com.jme3.math.Ray;
import com.jme3.math.Vector2f;
import com.jme3.math.Vector3f;
import com.jme3.post.FilterPostProcessor;
import com.jme3.post.filters.BloomFilter;
import com.jme3.renderer.Camera;
import com.jme3.renderer.queue.RenderQueue.ShadowMode;
import com.jme3.scene.Geometry;
import com.jme3.scene.Node;
import com.jme3.scene.Spatial;
import com.jme3.scene.shape.Box;
import com.jme3.scene.shape.Sphere;
import com.jme3.scene.shape.Sphere.TextureMode;
import com.jme3.terrain.geomipmap.TerrainLodControl;
import com.jme3.terrain.geomipmap.TerrainQuad;
import com.jme3.terrain.heightmap.AbstractHeightMap;
import com.jme3.terrain.heightmap.ImageBasedHeightMap;
import com.jme3.texture.Texture;
import com.jme3.texture.Texture.WrapMode;
import com.jme3.util.SkyFactory;
import java.util.ArrayList;
import java.util.List;
import jme3tools.optimize.GeometryBatchFactory;
/**
- A walking animated character followed by a 3rd person camera on a terrain with LOD.
-
@author normenhansen
*/
public class TestWalkingChar extends SimpleApplication implements ActionListener, PhysicsCollisionListener, AnimEventListener {
private BulletAppState bulletAppState;
CharacterControl character;
Node model;
Vector3f walkDirection = new Vector3f();
TerrainQuad terrain;
RigidBodyControl terrainPhysicsNode;
RigidBodyControl bulletRBC;
Material matRock;
Material matBullet;
AnimChannel animationChannel;
AnimChannel shootingChannel;
AnimControl animationControl;
float airTime = 0;
boolean left = false, right = false, up = false, down = false;
ChaseCamera chaseCam;
Sphere bullet;
SphereCollisionShape bulletCollisionShape;
ParticleEmitter effect;
Box brick;
float bLength = 0.8f;
float bWidth = 0.4f;
float bHeight = 0.4f;
FilterPostProcessor fpp;
Vector3f targetLoc;
boolean targetChosen;
Node boxNode;
RigidBodyControl boxRBC;
public static void main(String[] args) {
TestWalkingChar app = new TestWalkingChar();
app.start();
}
@Override
public void simpleInitApp() {
bulletAppState = new BulletAppState();
bulletAppState.setThreadingType(BulletAppState.ThreadingType.PARALLEL);
stateManager.attach(bulletAppState);
setupKeys();
createLight();
createSky();
createTerrain();
createBoxNode();
createCharacter();
createBullet();
setupChaseCamera();
setupAnimationController();
setupFilter();
}
private void setupFilter() {
FilterPostProcessor fpp = new FilterPostProcessor(assetManager);
BloomFilter bloom = new BloomFilter(BloomFilter.GlowMode.Objects);
fpp.addFilter(bloom);
viewPort.addProcessor(fpp);
}
private PhysicsSpace getPhysicsSpace() {
return bulletAppState.getPhysicsSpace();
}
private void setupKeys() {
inputManager.addMapping("wireframe", new KeyTrigger(KeyInput.KEY_T));
inputManager.addListener(this, "wireframe");
inputManager.addMapping("CharLeft", new KeyTrigger(KeyInput.KEY_A));
inputManager.addMapping("CharRight", new KeyTrigger(KeyInput.KEY_D));
inputManager.addMapping("CharUp", new KeyTrigger(KeyInput.KEY_W));
inputManager.addMapping("CharDown", new KeyTrigger(KeyInput.KEY_S));
inputManager.addMapping("CharSpace", new KeyTrigger(KeyInput.KEY_RETURN));
inputManager.addMapping("CharShoot", new KeyTrigger(KeyInput.KEY_SPACE));
inputManager.addMapping("ShootRay", new MouseButtonTrigger(MouseInput.BUTTON_LEFT) );
inputManager.addListener(this, "CharLeft");
inputManager.addListener(this, "CharRight");
inputManager.addListener(this, "CharUp");
inputManager.addListener(this, "CharDown");
inputManager.addListener(this, "CharSpace");
inputManager.addListener(this, "CharShoot");
inputManager.addListener(this, "ShootRay");
}
private void createLight() {
Vector3f direction = new Vector3f(-0.1f, -0.7f, -1).normalizeLocal();
DirectionalLight dl = new DirectionalLight();
dl.setDirection(direction);
dl.setColor(new ColorRGBA(1f, 1f, 1f, 1.0f));
rootNode.addLight(dl);
}
private void createSky() {
rootNode.attachChild(SkyFactory.createSky(assetManager, "Textures/Sky/BrightSky.dds", false));
}
private void createTerrain() {
matRock = new Material(assetManager, "Common/MatDefs/Terrain/TerrainLighting.j3md");
matRock.setBoolean("useTriPlanarMapping", false);
matRock.setBoolean("WardIso", true);
matRock.setTexture("AlphaMap", assetManager.loadTexture("Textures/Terrain/splat/alphamap.png"));
Texture heightMapImage = assetManager.loadTexture("Textures/Terrain/splat/mountains512.png");
Texture grass = assetManager.loadTexture("Textures/Terrain/splat/grass.jpg");
grass.setWrap(WrapMode.Repeat);
matRock.setTexture("DiffuseMap", grass);
matRock.setFloat("DiffuseMap_0_scale", 64);
Texture dirt = assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg");
dirt.setWrap(WrapMode.Repeat);
matRock.setTexture("DiffuseMap_1", dirt);
matRock.setFloat("DiffuseMap_1_scale", 16);
Texture rock = assetManager.loadTexture("Textures/Terrain/splat/road.jpg");
rock.setWrap(WrapMode.Repeat);
matRock.setTexture("DiffuseMap_2", rock);
matRock.setFloat("DiffuseMap_2_scale", 128);
Texture normalMap0 = assetManager.loadTexture("Textures/Terrain/splat/grass_normal.jpg");
normalMap0.setWrap(WrapMode.Repeat);
Texture normalMap1 = assetManager.loadTexture("Textures/Terrain/splat/dirt_normal.png");
normalMap1.setWrap(WrapMode.Repeat);
Texture normalMap2 = assetManager.loadTexture("Textures/Terrain/splat/road_normal.png");
normalMap2.setWrap(WrapMode.Repeat);
matRock.setTexture("NormalMap", normalMap0);
matRock.setTexture("NormalMap_1", normalMap2);
matRock.setTexture("NormalMap_2", normalMap2);
AbstractHeightMap heightmap = null;
try {
heightmap = new ImageBasedHeightMap(heightMapImage.getImage(), 0.25f);
heightmap.load();
} catch (Exception e) {
e.printStackTrace();
}
terrain = new TerrainQuad("terrain", 65, 513, heightmap.getHeightMap());
List<Camera> cameras = new ArrayList<Camera>();
cameras.add(getCamera());
TerrainLodControl control = new TerrainLodControl(terrain, cameras);
terrain.addControl(control);
terrain.setMaterial(matRock);
terrain.setLocalScale(new Vector3f(2, 2, 2));
terrain.setName("terrain");
terrainPhysicsNode = new RigidBodyControl(CollisionShapeFactory.createMeshShape(terrain), 0);
terrain.addControl(terrainPhysicsNode);
rootNode.attachChild(terrain);
getPhysicsSpace().add(terrainPhysicsNode);
}
private void createBoxNode(){
boxNode=new Node();
boxRBC=new RigidBodyControl(CollisionShapeFactory.createMeshShape(boxNode), 0);
boxNode.addControl(boxRBC);
rootNode.attachChild(boxNode);
getPhysicsSpace().add(boxRBC);
}
private void newBox(Vector3f loc){
Box b = new Box(1,1,1);
Spatial boxy = assetManager.loadModel("Models/Ninja/Ninja.mesh.xml");
boxy.scale(0.05f);
boxy.setLocalTranslation(loc);
boxNode.attachChild(boxy);
getPhysicsSpace().remove(boxRBC);
boxRBC.setCollisionShape(CollisionShapeFactory.createMeshShape(boxNode));
getPhysicsSpace().add(boxRBC);
GeometryBatchFactory.optimize(boxNode);
}
private void createCharacter() {
CapsuleCollisionShape capsule = new CapsuleCollisionShape(3f, 4f);
character = new CharacterControl(capsule, 0.01f);
model = (Node) assetManager.loadModel("Models/Oto/Oto.mesh.xml");
//model.setLocalScale(0.5f);
model.addControl(character);
character.setPhysicsLocation(new Vector3f(-140, 15, -10));
rootNode.attachChild(model);
getPhysicsSpace().add(character);
}
private void createBullet(){
Spatial bullet= assetManager.loadModel("Models/MonkeyHead/MonkeyHead.mesh.xml");
bulletCollisionShape = new SphereCollisionShape(1f);
bulletRBC = new RigidBodyControl(bulletCollisionShape, 100);
bullet.addControl(bulletRBC);
rootNode.attachChild(bullet);
getPhysicsSpace().add(bulletRBC);
bulletRBC.setPhysicsLocation(new Vector3f(character.getPhysicsLocation().add(10,0,0)));
}
private void setupChaseCamera() {
flyCam.setEnabled(false);
chaseCam = new ChaseCamera(cam, model, inputManager);
}
private void setupAnimationController() {
animationControl = model.getControl(AnimControl.class);
animationControl.addListener(this);
animationChannel = animationControl.createChannel();
shootingChannel = animationControl.createChannel();
shootingChannel.addBone(animationControl.getSkeleton().getBone("uparm.right"));
shootingChannel.addBone(animationControl.getSkeleton().getBone("arm.right"));
shootingChannel.addBone(animationControl.getSkeleton().getBone("hand.right"));
}
@Override
public void simpleUpdate(float tpf) {
Vector3f camDir = cam.getDirection().clone().multLocal(0.5f);
Vector3f camLeft = cam.getLeft().clone().multLocal(0.5f);
camDir.y = 0;
camLeft.y = 0;
walkDirection.set(0, 0, 0);
if (left) {
walkDirection.addLocal(camLeft);
}
if (right) {
walkDirection.addLocal(camLeft.negate());
}
if (up) {
walkDirection.addLocal(camDir);
}
if (down) {
walkDirection.addLocal(camDir.negate());
}
if (!character.onGround()) {
airTime = airTime + tpf;
} else {
airTime = 0;
}
if (walkDirection.length() == 0) {
if (!"stand".equals(animationChannel.getAnimationName())) {
animationChannel.setAnim("stand", 1f);
}
} else {
character.setViewDirection(walkDirection);
if (airTime > .3f) {
if (!"stand".equals(animationChannel.getAnimationName())) {
animationChannel.setAnim("stand");
}
} else if (!"Walk".equals(animationChannel.getAnimationName())) {
animationChannel.setAnim("Walk", 0.7f);
}
}
character.setWalkDirection(walkDirection);
if(targetChosen){
bulletRBC.applyImpulse(targetLoc.subtract(bulletRBC.getPhysicsLocation()).divide(5), Vector3f.ZERO);
}
}
public void onAction(String binding, boolean value, float tpf) {
if (binding.equals("CharLeft")) {
if (value) {
left = true;
} else {
left = false;
}
} else if (binding.equals("CharRight")) {
if (value) {
right = true;
} else {
right = false;
}
} else if (binding.equals("CharUp")) {
if (value) {
up = true;
} else {
up = false;
}
} else if (binding.equals("CharDown")) {
if (value) {
down = true;
} else {
down = false;
}
} else if (binding.equals("CharSpace")) {
character.jump();
} else if (binding.equals("ShootRay")) {
if(value){
CollisionResults results = new CollisionResults();
Vector2f click2d = inputManager.getCursorPosition();
Vector3f click3d = cam.getWorldCoordinates(new Vector2f(click2d.x, click2d.y), 0f).clone();
Vector3f dir = cam.getWorldCoordinates(new Vector2f(click2d.x, click2d.y), 1f).subtractLocal(click3d).normalizeLocal();
Ray ray = new Ray(click3d, dir);
rootNode.collideWith(ray, results);
if(results.size()>0){
if (results.getCollision(0).getGeometry().getName().startsWith("terrain")) {
targetChosen=true;
targetLoc=results.getCollision(0).getContactPoint();
newBox(targetLoc);
}
}
}else{
}
}
}
public void collision(PhysicsCollisionEvent event) {
}
public void onAnimCycleDone(AnimControl control, AnimChannel channel, String animName) {
if (channel == shootingChannel) {
channel.setAnim("stand");
}
}
public void onAnimChange(AnimControl control, AnimChannel channel, String animName) {
}
}
[/java]
So, am I doing something totally wrong here or what? Thanks!
just didn’t think about doing that then, as I was just quickly writing a testcase, lol…
and thanks for taking your precious lunch break to check up on the forums haha.
So now all I have to do (once my SDK updates) is remove it from the physicsSpace (err, actually setEnabled(false) on the control), set the collision shape, then enable it again? Sounds nifty.