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/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package jme3test.bullet;
import com.jme3.asset.AssetManager;
import com.jme3.bullet.PhysicsSpace;
import com.jme3.bullet.PhysicsTickListener;
import com.jme3.bullet.collision.PhysicsCollisionEvent;
import com.jme3.bullet.collision.PhysicsCollisionListener;
import com.jme3.bullet.collision.PhysicsCollisionObject;
import com.jme3.bullet.collision.shapes.CollisionShape;
import com.jme3.bullet.collision.shapes.SphereCollisionShape;
import com.jme3.bullet.control.RigidBodyControl;
import com.jme3.bullet.objects.PhysicsGhostObject;
import com.jme3.bullet.objects.PhysicsRigidBody;
import com.jme3.effect.ParticleEmitter;
import com.jme3.effect.ParticleMesh.Type;
import com.jme3.effect.shapes.EmitterSphereShape;
import com.jme3.export.JmeExporter;
import com.jme3.export.JmeImporter;
import com.jme3.material.Material;
import com.jme3.math.ColorRGBA;
import com.jme3.math.Vector3f;
import java.io.IOException;
import java.util.Iterator;
/**
*
* @author normenhansen
*/
public class BombControl extends RigidBodyControl implements PhysicsCollisionListener, PhysicsTickListener {
private float explosionRadius = 10;
private PhysicsGhostObject ghostObject;
private Vector3f vector = new Vector3f();
private Vector3f vector2 = new Vector3f();
private float forceFactor = 1;
private ParticleEmitter effect;
private float fxTime = 0.5f;
private float maxTime = 4f;
private float curTime = -1.0f;
private float timer;
public BombControl(CollisionShape shape, float mass) {
super(shape, mass);
createGhostObject();
}
public BombControl(AssetManager manager, CollisionShape shape, float mass) {
super(shape, mass);
createGhostObject();
prepareEffect(manager);
}
public void setPhysicsSpace(PhysicsSpace space) {
super.setPhysicsSpace(space);
if (space != null) {
space.addCollisionListener(this);
}
}
private void prepareEffect(AssetManager assetManager) {
int COUNT_FACTOR = 1;
float COUNT_FACTOR_F = 1f;
effect = new ParticleEmitter("Flame", Type.Triangle, 32 * COUNT_FACTOR);
effect.setSelectRandomImage(true);
effect.setStartColor(new ColorRGBA(1f, 0.4f, 0.05f, (float) (1f / COUNT_FACTOR_F)));
effect.setEndColor(new ColorRGBA(.4f, .22f, .12f, 0f));
effect.setStartSize(1.3f);
effect.setEndSize(2f);
effect.setShape(new EmitterSphereShape(Vector3f.ZERO, 1f));
effect.setParticlesPerSec(0);
effect.setGravity(0, -5f, 0);
effect.setLowLife(.4f);
effect.setHighLife(.5f);
effect.setInitialVelocity(new Vector3f(0, 7, 0));
effect.setVelocityVariation(1f);
effect.setImagesX(2);
effect.setImagesY(2);
Material mat = new Material(assetManager, "Common/MatDefs/Misc/Particle.j3md");
mat.setTexture("Texture", assetManager.loadTexture("Effects/Explosion/flame.png"));
effect.setMaterial(mat);
}
protected void createGhostObject() {
ghostObject = new PhysicsGhostObject(new SphereCollisionShape(explosionRadius));
}
public void collision(PhysicsCollisionEvent event) {
if (space == null) {
return;
}
if (event.getObjectA() == this || event.getObjectB() == this) {
space.add(ghostObject);
ghostObject.setPhysicsLocation(getPhysicsLocation(vector));
space.addTickListener(this);
if (effect != null && spatial.getParent() != null) {
curTime = 0;
effect.setLocalTranslation(spatial.getLocalTranslation());
spatial.getParent().attachChild(effect);
effect.emitAllParticles();
}
space.remove(this);
spatial.removeFromParent();
}
}
public void prePhysicsTick(PhysicsSpace space, float f) {
space.removeCollisionListener(this);
}
public void physicsTick(PhysicsSpace space, float f) {
//get all overlapping objects and apply impulse to them
for (Iterator<PhysicsCollisionObject> it = ghostObject.getOverlappingObjects().iterator(); it.hasNext();) {
PhysicsCollisionObject physicsCollisionObject = it.next();
if (physicsCollisionObject instanceof PhysicsRigidBody) {
PhysicsRigidBody rBody = (PhysicsRigidBody) physicsCollisionObject;
rBody.getPhysicsLocation(vector2);
vector2.subtractLocal(vector);
float force = explosionRadius - vector2.length();
force *= forceFactor;
force = force > 0 ? force : 0;
vector2.normalizeLocal();
vector2.multLocal(force);
((PhysicsRigidBody) physicsCollisionObject).applyImpulse(vector2, Vector3f.ZERO);
}
}
space.removeTickListener(this);
space.remove(ghostObject);
}
@Override
public void update(float tpf) {
super.update(tpf);
if(enabled){
timer+=tpf;
if(timer>maxTime){
if(spatial.getParent()!=null){
space.removeCollisionListener(this);
space.remove(this);
spatial.removeFromParent();
}
}
}
if (enabled && curTime >= 0) {
curTime += tpf;
if (curTime > fxTime) {
curTime = -1;
effect.removeFromParent();
}
}
}
/**
* @return the explosionRadius
*/
public float getExplosionRadius() {
return explosionRadius;
}
/**
* @param explosionRadius the explosionRadius to set
*/
public void setExplosionRadius(float explosionRadius) {
this.explosionRadius = explosionRadius;
createGhostObject();
}
public float getForceFactor() {
return forceFactor;
}
public void setForceFactor(float forceFactor) {
this.forceFactor = forceFactor;
}
@Override
public void read(JmeImporter im) throws IOException {
throw new UnsupportedOperationException("Reading not supported.");
}
@Override
public void write(JmeExporter ex) throws IOException {
throw new UnsupportedOperationException("Saving not supported.");
}
}
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