Explosion not visible

vry · December 22, 2008, 9:29pm

Hi

I try use ExplosionFactory from jme example but effect is not visible. I have message in console that node is created and attached to scene but still nothing happend. I read all "explosion" and "particlemesh" topics but I cant find solution. Please help me ;P!

PS. I'm beginer and this is my first example so bug can be stupid.

Myengine class:

public class engine extends BaseGame {

protected Timer timer;

private TerrainBlock tb;

//the root node of the scene graph

private Node scene;

private Node model;

private Plane player;

GameControlManager manager = new GameControlManager();

Sphere t = null;

//private NodeHandler inputHandler;

ParticleMesh explosion;

int i=10;

int ammocount=0;

int distance=100;

boolean fire=false;

float lifeTime = 5;

Skybox sb;

ArrayList<Bullet> lista=new ArrayList<Bullet>();

private TextureState ts;

private TextureState ts2;

private TextureState ts5;

protected InputHandler input;

// Our camera object for viewing the scene

private Camera cam;

//The chase camera, this will follow our player as he zooms around the level

private ChaseCamera chaser;

//display attributes for the window. We will keep these values

//to allow the user to change them

private int width, height, depth, freq;

private boolean fullscreen;

private enum Direction {

RIGHT,

LEFT,

FORWARD,

BACKWARD;

}

Direction dir;

private void buildTerrain() {

// Generate a random terrain data

MidPointHeightMap heightMap = new MidPointHeightMap(128, 0.7f);

// Scale the data

Vector3f terrainScale = new Vector3f(20, 0.5f, 20);

// create a terrainblock

tb = new TerrainBlock("Terrain", heightMap.getSize(), terrainScale,

heightMap.getHeightMap(), new Vector3f(-30, 0, -2100), false);

tb.setModelBound(new BoundingBox());

tb.updateModelBound();

// generate a terrain texture with 3 textures

ProceduralTextureGenerator pt = new ProceduralTextureGenerator(

heightMap);

pt.addTexture(new ImageIcon(("res/grass.jpg")), -128, 0, 128);

pt.addTexture(new ImageIcon(("res/sand.jpg")), 0, 128, 255);

pt.addTexture(new ImageIcon(("res/grass.png")), 128, 255, 384);

//pt.addTexture(new ImageIcon(("res/highest.png")), 128, 255,384);

pt.createTexture(32);

//pt.

// assign the texture to the terrain

TextureState ts = display.getRenderer().createTextureState();

ts.setEnabled(true);

Texture t1 = TextureManager.loadTexture(pt.getImageIcon().getImage(),

Texture.MM_LINEAR_LINEAR, Texture.FM_LINEAR, true);

//ts.setTexture(t1, 0);

Texture t2 = TextureManager.loadTexture(("res/grass.jpg"), Texture.MM_LINEAR_LINEAR, Texture.FM_LINEAR);

ts.setTexture(t2, 1);

t2.setWrap(Texture.WM_WRAP_S_WRAP_T);

t1.setApply(Texture.AM_COMBINE);

t1.setCombineFuncRGB(Texture.ACF_MODULATE);

t1.setCombineSrc0RGB(Texture.ACS_TEXTURE);

t1.setCombineOp0RGB(Texture.ACO_SRC_COLOR);

t1.setCombineSrc1RGB(Texture.ACS_PRIMARY_COLOR);

t1.setCombineOp1RGB(Texture.ACO_SRC_COLOR);

t1.setCombineScaleRGB(1.0f);

t2.setApply(Texture.AM_COMBINE);

t2.setCombineFuncRGB(Texture.ACF_ADD_SIGNED);

t2.setCombineSrc0RGB(Texture.ACS_TEXTURE);

t2.setCombineOp0RGB(Texture.ACO_SRC_COLOR);

t2.setCombineSrc1RGB(Texture.ACS_PREVIOUS);

t2.setCombineOp1RGB(Texture.ACO_SRC_COLOR);

t2.setCombineScaleRGB(1.0f);

tb.setRenderState(ts);

tb.setDetailTexture(1, 16);

tb.setRenderQueueMode(Renderer.QUEUE_OPAQUE);

//tb.setRenderState(ts);

//tb.setTextureCombineMode(0);

//tb.setLightCombineMode(LightState.OFF);

tb.updateRenderState();

scene.updateRenderState();

}

/**

Main entry point of the application

*/

/

* creates a light for the terrain.

/

private void buildLighting() {

/ Set up a basic, default light. /

DirectionalLight light = new DirectionalLight();

light.setDiffuse(new ColorRGBA(1.0f, 1.0f, 1.0f, 1.0f));

light.setAmbient(new ColorRGBA(0.5f, 0.5f, 0.5f, 1.0f));

light.setDirection(new Vector3f(1,-1,0));

light.setEnabled(true);

/ Attach the light to a lightState and the lightState to

rootNode. */

LightState lightState = display.getRenderer().createLightState();

lightState.setEnabled(true);

lightState.attach(light);

scene.setRenderState(lightState);

}

public static void main(String[] args) {

engine app = new engine();

//We will load our own "fantastic" Flag Rush logo. Yes, I'm an artist.

app.setDialogBehaviour(ALWAYS_SHOW_PROPS_DIALOG,

("res/splashscrean.png"));

app.start();

}

void checkCollisions(){

// if(player.hasCollision(tb, false))

System.out.println("colizja");

}

/**
During an update we only look for the escape button and update the

timer
to get the framerate.

/

protected void update(float interpolation) {

//update the time to get the framerate

timer.update();

// checkCollisions();

tb.getWorldTranslation().z=tb.getLocalTranslation().z;

if(lifeTime==5000){

lista.add(new Bullet());

lista.get(lista.size()-1).getLocalTranslation().set(player.getLocalTranslation());

scene.attachChild(lista.get(lista.size()-1));

lifeTime --;

}

for(int i=0;i<lista.size();i++)

{

if (lista.get(i).lifet > 1000) {

scene.detachChild(lista.get(i));

lista.remove(i);

System.out.println("remove: "+i);

}

else{

{

System.out.println("dupa2");

lista.get(i).getLocalTranslation().z-=70 timer.getTimePerFrame();

//player.getLocalTranslation().y += player.getMaxSpeed() * timer.getTimePerFrame();

lista.get(i).updateWorldBound();

//lifeTime --;

lista.get(i).lifet++;

}

}

}

//vry

//sb.getLocalTranslation().set(cam.getLocation().x, cam.getLocation().y,

// cam.getLocation().z);

//if(KeyBindingManager.getKeyBindingManager().isValidCommand("fire"))

if(MouseInput.get().isButtonDown(0))

{

lifeTime=5000;

}

cam.update();

if (KeyBindingManager.getKeyBindingManager().isValidCommand("BALLTHROWER_SHOOT")) {

//t= Shoot();

//fire=true;

buulets gg=new buulets();

System.out.println("id rownasie"+gg.id);

}

if (KeyBindingManager.getKeyBindingManager().isValidCommand("exit")) {

finished = true;//KEY_W

}

if (KeyBindingManager.getKeyBindingManager().isValidCommand("moveFwd")) {

player.getLocalTranslation().y += player.getMaxSpeed() * timer.getTimePerFrame();

}

if (KeyBindingManager.getKeyBindingManager().isValidCommand("moveBwd")) {

player.getLocalTranslation().y -= player.getMaxSpeed()* timer.getTimePerFrame();

}

if (KeyBindingManager.getKeyBindingManager().isValidCommand("rotateLeft")) {

player.getLocalTranslation().x -= player.getMaxSpeed()* timer.getTimePerFrame();

//ExplosionFactory.warmup();

explosion = ExplosionFactory.getExplosion();

// explosion.setOriginOffset(player.getLocalTranslation().clone());

//explosion.setOriginOffset(500.0f, 160.0f, 450.0f);

explosion.forceRespawn();

scene.attachChild(explosion);

explosion.forceRespawn();

// explosion.setCullMode(Spatial.COMPOSITE_MESH);

// explosion.getLocalScale().set(2.5f, 2.5f, 2.5f);

// explosion.getLocalTranslation().set( 500.0f, 160.0f, 450.0f );

// explosion.updateRenderState();

// explosion.updateGeometricState(0,true);

// explosion.updateWorldVectors();

//scene.updateWorldVectors();

// scene.setParticlesInWorldCoords(boolean);

}

if (KeyBindingManager.getKeyBindingManager().isValidCommand("rotateRight")) {

player.getLocalTranslation().x += player.getMaxSpeed()* timer.getTimePerFrame();

//cam.getWorldCoordinates(arg0, arg1)

}

if (KeyBindingManager.getKeyBindingManager().isValidCommand("start")) {

player.getLocalTranslation().z -= player.getMaxSpeed()* timer.getTimePerFrame();

cam.getLocation().z-=player.getMaxSpeed() * timer.getTimePerFrame();

//cam.getDirection().y-=player.getMaxSpeed() * timer.getTimePerFrame();

}

if (KeyBindingManager.getKeyBindingManager().isValidCommand("back")) {

//player.setLocalRotation(new Quaternion(new float[] { FastMath.DEG_TO_RAD*-90, i, 0} ));

player.getLocalTranslation().z += (player.getMaxSpeed()* timer.getTimePerFrame());

cam.getLocation().z+=player.getMaxSpeed() * timer.getTimePerFrame();

}

// input.update(interpolation);

// scene.updateWorldBound();

// model.updateWorldBound();

player.updateWorldBound();

//input.update(interpolation);

scene.updateWorldBound();

model.updateWorldBound();

scene.updateGeometricState(1.0f, true);

scene.updateRenderState();

}

private void setupSky() {

sb = new Skybox( "skybox", 300, 300,300 );

try {

ResourceLocatorTool.addResourceLocator(

ResourceLocatorTool.TYPE_TEXTURE,

new SimpleResourceLocator(getClass().getResource(

"workspace1/try/")));

} catch (Exception e) {

System.out.println("Unable to access texture directory gfgfg.");

e.printStackTrace();

}

// sb.setTexture( Skybox.NORTH, TextureManager.loadTexture("res/Clouds2.jpg", Texture.MM_LINEAR, Texture.FM_LINEAR ) );

// sb.setTexture( Skybox.WEST, TextureManager.loadTexture("res/Clouds2.jpg", Texture.MM_LINEAR, Texture.FM_LINEAR ) );

sb.setTexture( Skybox.SOUTH, TextureManager.loadTexture("res/Clouds2.jpg", Texture.MM_LINEAR, Texture.FM_LINEAR ) );

sb.setTexture( Skybox.EAST, TextureManager.loadTexture("res/Clouds2.jpg", Texture.MM_LINEAR, Texture.FM_LINEAR ) );

sb.setTexture( Skybox.UP, TextureManager.loadTexture("res/Clouds2.jpg", Texture.MM_LINEAR, Texture.FM_LINEAR ) );

sb.setTexture( Skybox.DOWN, TextureManager.loadTexture("res/Clouds2.jpg", Texture.MM_LINEAR, Texture.FM_LINEAR ) );

sb.preloadTextures();//rolling_hills

// Texture generatedClouds = generateClouds(128, 128);

//sb.setTexture(Skybox.SOUTH, generatedClouds);

CullState cullState = display.getRenderer().createCullState();

cullState.setCullMode( CullState.CS_NONE);

cullState.setEnabled( true );

sb.setRenderState( cullState );

sb.updateRenderState();

}

/**
draws the scene graph
@return

*/

protected void render(float interpolation) {

//Clear the screen

display.getRenderer().clearBuffers();

display.getRenderer().draw(scene);

}

/**
initializes the display and camera.

/

protected void initSystem() {

//store the properties information

width = properties.getWidth();

height = properties.getHeight();

depth = properties.getDepth();

freq = properties.getFreq();

fullscreen = properties.getFullscreen();

try {

display = DisplaySystem.getDisplaySystem(properties.getRenderer());

display.createWindow(width, height, depth, freq, fullscreen);

cam = display.getRenderer().createCamera(width, height);

} catch (JmeException e) {

e.printStackTrace();

System.exit(1);

}

//set the background to black

display.getRenderer().setBackgroundColor(ColorRGBA.white);

//initialize the camera

cam.setFrustumPerspective(45.0f, (float) width / (float) height, 1, 1000);//5000

// Vector3f loc = new Vector3f(0.0f, 0.0f, 25.0f);

// Vector3f left = new Vector3f(-1.0f, 0.0f, 0.0f);

// Vector3f up = new Vector3f(0.0f, 1.0f, 0.0f);

// Vector3f dir = new Vector3f(0.0f, 0f, -1.0f);

Vector3f loc = new Vector3f(500.0f, 150.0f, 500.0f);

Vector3f left = new Vector3f(0.0f, 0.0f, 0.0f);

Vector3f up = new Vector3f(0.0f, 1.0f, 0.0f);

Vector3f dir = new Vector3f(0.0f, 0.0f, -1.0f);

// Move our camera to a correct place and orientation.

cam.setFrame(loc, left, up, dir);

/* Signal that we've changed our camera's location/frustum. /

cam.update();

/* Get a high resolution timer for FPS updates. /

timer = Timer.getTimer();

display.getRenderer().setCamera(cam);

GameControl fire = manager.addControl("fire");

KeyBindingManager.getKeyBindingManager().set("moveFwd", KeyInput.KEY_W);

KeyBindingManager.getKeyBindingManager().set("moveBwd", KeyInput.KEY_S);

KeyBindingManager.getKeyBindingManager().set("rotateLeft", KeyInput.KEY_A);

KeyBindingManager.getKeyBindingManager().set("rotateRight", KeyInput.KEY_D);

KeyBindingManager.getKeyBindingManager().set("start", KeyInput.KEY_F);

KeyBindingManager.getKeyBindingManager().set("back", KeyInput.KEY_G);

KeyBindingManager.getKeyBindingManager().set("BALLTHROWER_SHOOT", KeyInput.KEY_SPACE);

KeyBindingManager.getKeyBindingManager().set("exit",

KeyInput.KEY_ESCAPE);

// KeyBindingManager.getKeyBindingManager().set("fire", KeyInput.KEY_SPACE);

fire.addBinding(new MouseButtonBinding(MouseButtonBinding.LEFT_BUTTON));

KeyBindingManager.getKeyBindingManager().set("exit",

KeyInput.KEY_ESCAPE);

}

private void buildChaseCamera() {

}

private void buildPlayer() {

//box stand in

model=getModel3ds(new File("res/fighter1.3ds"));//Matt_Drums.3ds

//model.setLocalScale(0.6f);

//model.setLocalTranslation(new Vector3f(100,0, 100));

model.setModelBound(new BoundingBox());

model.updateModelBound();

try {

MultiFormatResourceLocator loc3 = new MultiFormatResourceLocator(new File("c:/").toURI(), ".jpg", ".png", ".tga");

ResourceLocatorTool.addResourceLocator(ResourceLocatorTool.TYPE_TEXTURE, loc3);

} catch (Exception e) {

e.printStackTrace();

}

try {

//ts2.setTexture(t2, 0);

//URL ul=getClass().getClassLoader().getResource("kaoskiwi.jpg");

URL ul=this.getClass().getResource("cinfa.jpg");

ts5 = display.getRenderer().createTextureState();

Texture t1 = TextureManager.loadTexture(ul,

Texture.MM_LINEAR_LINEAR, Texture.FM_LINEAR);

ts5.setTexture(t1,0);

model.setRenderState(ts5);

model.setTextureCombineMode(1);

model.updateRenderState();

scene.updateRenderState();

} catch (Exception e) {

System.out.println("aaaaaaaaaaaaaa");

e.printStackTrace();

}

model.getLocalRenderQueueMode();

// ts2.setEnabled(true);

model.setLightCombineMode(LightState.OFF);

player = new Plane("Player Node", model);

scene.updateRenderState();

player.updateRenderState();

model.updateRenderState();

player.setAcceleration(15);

player.setBraking(25);

player.setTurnSpeed(5);

player.setWeight(25);

player.setMaxSpeed(25);

player.setMinSpeed(15);

//crono782.jpg

player.getLocalScale().set(0.5f, 0.5f, 0.5f);

player.getLocalTranslation().set( 500.0f, 160.0f, 450.0f );

//player.getLocalTranslation().set( 0.25f, -0.1f, -40.0f );//0.0f,-2.0f,19.0f

player.setLocalRotation(new Quaternion(new float[] { FastMath.DEG_TO_RAD-90, 80, 0} ));

player.updateWorldBound();

scene.attachChild(player);

scene.updateWorldBound();

player.setRenderQueueMode(Renderer.QUEUE_TRANSPARENT);

}

/**
initializes the scene

*/

protected void initGame() {

scene = new Node("Scene graph node");

// setupSky();

buildTerrain();

scene.attachChild(tb);

scene.updateWorldBound();

ZBufferState buf = display.getRenderer().createZBufferState();

buf.setEnabled(true);

buf.setFunction(ZBufferState.CF_LEQUAL);

scene.setRenderState(buf);

buildLighting();

buildPlayer();

// CullState cs = display.getRenderer().createCullState();

// cs.setCullMode(CullState.RS_FOG);

// scene.setRenderState(cs);

// scene.attachChild(sb);

// buildChaseCamera();

// buildInput();

scene.updateGeometricState(1.0f, true);

scene.updateRenderState();

}

/**
will be called if the resolution changes

*

*/

protected void reinit() {

display.recreateWindow(width, height, depth, freq, fullscreen);

}

/**
clean up the textures.

*

*/

protected void cleanup() {

ts.deleteAll();

}

public Node getModel3ds(File file) {

FormatConverter converter = new MaxToJme();

Node model = null;

ByteArrayOutputStream bo = new ByteArrayOutputStream();

File input = new File("cache/"+file.getName() + ".jme");

// check if there is a cached jme format model for the requested file

if(input.isFile()) {

try {

ResourceLocatorTool.addResourceLocator(ResourceLocatorTool.TYPE_MODEL,

new SimpleResourceLocator(file.getParentFile().toURI()));

model =

(Node)BinaryImporter.getInstance().load(input);

ResourceLocatorTool.removeResourceLocator(ResourceLocatorTool.TYPE_MODEL,

new SimpleResourceLocator(file.getParentFile().toURI()));

return model;

} catch(IOException e) {

e.printStackTrace();

}

}

// no cached model found -> convert the 3ds file and cache it

try {

ResourceLocatorTool.addResourceLocator(ResourceLocatorTool.TYPE_TEXTURE,

new SimpleResourceLocator(file.getParentFile().toURI()));

converter.convert(new FileInputStream(file), bo);

model = (Node)BinaryImporter.getInstance().load(new

ByteArrayInputStream(bo.toByteArray()));

bo.writeTo(new

FileOutputStream("cache/"+file.getName()+".jme"));

ResourceLocatorTool.removeResourceLocator(ResourceLocatorTool.TYPE_TEXTURE,

new SimpleResourceLocator(file.getParentFile().toURI()));

} catch(IOException e) {

e.printStackTrace();

}

return model;

}

}

basixs · December 22, 2008, 9:49pm

That's a lot of code to trace through, anyway you can slim it down? A simple test that shows just the problem and nothing more would be the best (ie. use simpleGame and create a test that simply fires an explosion when you press space bar). Might help you find the problem also

vry · December 22, 2008, 10:11pm

In simple game everything works corectly. Maybe I will try check camera position…

this is my camera

cam.setFrustumPerspective(45.0f, (float) width / (float) height, 1, 1000);

Vector3f loc = new Vector3f(500.0f, 150.0f, 500.0f);

Vector3f left = new Vector3f(0.0f, 0.0f, 0.0f);

Vector3f up = new Vector3f(0.0f, 1.0f, 0.0f);

Vector3f dir = new Vector3f(0.0f, 0.0f, -1.0f);

but I try

explosion.setOriginOffset(player.getLocalTranslation().clone());

or

explosion.setOriginOffset(500.0f, 160.0f, 450.0f);

and explosion is still not visible.

so I have no idea where can be problem

and sory for a lot of sourcecode (I have no idea where is bug so I paste everything)

basixs · December 22, 2008, 11:02pm

I would bet you are missing an updateGeometricState() somewhere (or possible updateRenderState() )…

vry · December 22, 2008, 11:47pm

No , I added this two functions in my update () and try add this in after spartial node adding. Tomorow (is 1AM in my country ;P)I check camera position and other things. I think that I should do some refactorization becouse a lot of functions is in the one class (I do this in this way becouse it is only example) and maybe I find where I do mistake. I will check this tomrorow

vry · December 28, 2008, 8:42pm

the problem is resolved. Explosion was ok but it was problem with camera positon. I change vector left to:

Vector3f left = new Vector3f(-1.0f, 0.0f, 0.0f);

and everything is perfect.

and basixs …thanks for help I made this simpleTest and I have wonderfull test (to creating effects )enviroment right now.

basixs · December 28, 2008, 11:20pm

Awesome, yup I learned if from the jME source (its a good 'trick' to have in the bag).

Will you post this as resolved so that other people that have similar problems will (hopefully) find it…

nymon · December 29, 2008, 6:36pm

no screenshot? :? Everybody likes a good explosion.