Howdy cowboys,
this here is our situation. (plz update CVS first).
check this code out, and see for yourself (make sure to rotate camera to see bug). Copy/Paste first, then enjoy!
import com.jme.app.SimpleGame;
import com.jme.effects.ParticleController;
import com.jme.effects.ParticleSystem;
import com.jme.image.Texture;
import com.jme.input.InputController;
import com.jme.input.InputSystem;
import com.jme.input.NodeController;
import com.jme.intersection.CollisionDetection;
import com.jme.intersection.CollisionResults;
import com.jme.math.Line;
import com.jme.math.Vector3f;
import com.jme.renderer.Camera;
import com.jme.renderer.ColorRGBA;
import com.jme.scene.Box;
import com.jme.scene.CameraNode;
import com.jme.scene.Controller;
import com.jme.scene.Node;
import com.jme.scene.Text;
import com.jme.scene.TriMesh;
import com.jme.scene.state.AlphaState;
import com.jme.scene.state.TextureState;
import com.jme.system.DisplaySystem;
import com.jme.system.JmeException;
import com.jme.util.TextureManager;
import com.jme.util.Timer;
/**
* @author Ahmed
*/
public class TestParticleSystem2 extends SimpleGame {
private ParticleSystem ps;
private ParticleController pc;
private Node root;
private Camera cam;
private CameraNode camNode;
private Timer timer;
private InputController input;
private Text fps, col;
private TriMesh box;
public static void main(String[] args) {
TestParticleSystem2 app = new TestParticleSystem2();
app.setDialogBehaviour(ALWAYS_SHOW_PROPS_DIALOG);
app.start();
}
protected void update(float interpolation) {
timer.update();
input.update(timer.getTimePerFrame() * 10);
fps.print("FPS: " + (int)timer.getFrameRate());
root.updateWorldData(timer.getTimePerFrame() * 10);
CollisionResults cs = new CollisionResults();
CollisionDetection.hasCollision(ps, root, cs);
if (cs.getNumber() > 0) {
col.print("Collided: YES");
}else if (cs.getNumber() <= 0) {
col.print("Collided: NO");
}
}
protected void render(float interpolation) {
display.getRenderer().clearBuffers();
display.getRenderer().draw(root);
}
protected void initSystem() {
try {
display = DisplaySystem.getDisplaySystem(properties.getRenderer());
display.createWindow(
properties.getWidth(),
properties.getHeight(),
properties.getDepth(),
properties.getFreq(),
properties.getFullscreen());
cam =
display.getRenderer().getCamera(
properties.getWidth(),
properties.getHeight());
} catch (JmeException e) {
e.printStackTrace();
System.exit(1);
}
display.getRenderer().setBackgroundColor(new ColorRGBA(0, 0, 0, 1));
cam.setFrustum(1f, 1000f, -0.55f, 0.55f, 0.4125f, -0.4125f);
Vector3f loc = new Vector3f(10, 0, 0);
Vector3f left = new Vector3f(0, -1, 0);
Vector3f up = new Vector3f(0, 0, 1f);
Vector3f dir = new Vector3f(-1, 0, 0);
cam.setFrame(loc, left, up, dir);
display.getRenderer().setCamera(cam);
camNode = new CameraNode(cam);
timer = Timer.getTimer(properties.getRenderer());
input = new NodeController(this, camNode, properties.getRenderer());
input.setMouseSpeed(0.2f);
input.setKeySpeed(1f);
InputSystem.createInputSystem(properties.getRenderer());
}
protected void initGame() {
root = new Node();
AlphaState as1 = display.getRenderer().getAlphaState();
as1.setBlendEnabled(true);
as1.setSrcFunction(AlphaState.SB_SRC_ALPHA);
as1.setDstFunction(AlphaState.DB_ONE);
as1.setTestEnabled(true);
as1.setTestFunction(AlphaState.TF_GREATER);
as1.setEnabled(true);
TextureState ts = display.getRenderer().getTextureState();
ts.setTexture(
TextureManager.loadTexture(
"data/texture/snowflake.png",
Texture.MM_LINEAR,
Texture.FM_LINEAR,
true));
ts.setEnabled(true);
TextureState font = display.getRenderer().getTextureState();
font.setTexture(
TextureManager.loadTexture(
"data/Font/font.png",
Texture.MM_LINEAR,
Texture.FM_LINEAR,
true));
font.setEnabled(true);
ps = new ParticleSystem(1000);
ps.setStartColor(new ColorRGBA(1f, 1f, 1f, 0.9f));
ps.setEndColor(new ColorRGBA(1f, 1f, 1f, 0.1f));
ps.setStartSize(0.2f);
ps.setEndSize(0.1f);
ps.setGravity(new Vector3f(0, -50, 0));
ps.setSpeed(1f);
ps.setFriction(3f);
ps.setFade(0.01f);
ps.useGeometry(true);
ps.setGeometry(new Line(new Vector3f(-25, 0, 0), new Vector3f(25, 0, 0)));
ps.setLocalTranslation(new Vector3f(0, 5, 10));
pc = new ParticleController(ps);
pc.setRepeatType(Controller.RT_WRAP);
ps.addController(pc);
ps.setRenderState(as1);
ps.setRenderState(ts);
ps.setName("Particle System");
fps = new Text("");
fps.setRenderState(as1);
fps.setRenderState(font);
fps.setName("FPS Counter");
col = new Text("");
col.setLocalTranslation(new Vector3f(0, 20, 0));
col.setRenderState(as1);
col.setRenderState(font);
col.setName("Collisions");
Vector3f max = new Vector3f(0.1f, 0.1f, 0.1f);
Vector3f min = new Vector3f(-0.1f, -0.1f, -0.1f);
box = new Box(min.mult(10), max.mult(10));
box.setLocalTranslation(new Vector3f(-0.5f, 0, 0));
box.setName("Box");
camNode.attachChild(ps);
camNode.setLocalTranslation(new Vector3f(0, 0, -75));
root.attachChild(fps);
root.attachChild(col);
root.attachChild(box);
root.attachChild(camNode);
root.updateGeometricState(0.0f, true);
}
protected void reinit() {
}
protected void cleanup() {
}
}
