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POCollisionShape flying away from world
 

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    <p>I am developing a game in JME3 and for some reason my spatial Player is flying away (upwards) from my world. I don't see what I am missing, could you take a look and tell me how to make the Player stay on the world?</p> <pre><code> public class Main extends SimpleApplication { private BulletAppState bulletAppState; public static void main(String[] args) { Main app = new Main(); app.start(); } Node playerNode = new Node("player"); Spatial player; @Override public void simpleInitApp() { bulletAppState = new BulletAppState(); stateManager.attach(bulletAppState); bulletAppState.getPhysicsSpace().setGravity(new Vector3f(0f,-9.81f,0f)); speed = 10.0f; //World Spatial world = assetManager.loadModel("Scenes/city/sound_city.j3o"); world.setLocalScale(2.0f); CollisionShape worldcshape = CollisionShapeFactory.createDynamicMeshShape(world); RigidBodyControl rworld = new RigidBodyControl(worldcshape); rworld.setMass(0f); bulletAppState.getPhysicsSpace().add(rworld); world.addControl(rworld); rootNode.attachChild(world); //Player player = assetManager.loadModel("Models/player/player.j3o"); playerNode.attachChild(player); CollisionShape playerShape = CollisionShapeFactory.createDynamicMeshShape(player); RigidBodyControl plr = new RigidBodyControl(playerShape,123.0f); plr.setFriction(1f); plr.setMass(60f); bulletAppState.getPhysicsSpace().add(plr); player.addControl(plr); rootNode.attachChild(playerNode); //SoundModel Spatial sound = assetManager.loadModel("Models/sound/sound.j3o"); sound.setLocalScale(0.3f); sound.setLocalTranslation(3.0f, 0, 5.0f); sound.rotate(0, FastMath.DEG_TO_RAD*-40, 0); rootNode.attachChild(sound); Spatial sound2 = sound.clone(); sound.setLocalTranslation(3.0f, 0, 6.0f); rootNode.attachChild(sound2); //Light DirectionalLight sun = new DirectionalLight(); sun.setDirection(new Vector3f(-0.1f, -0.7f, -1.0f)); rootNode.addLight(sun); initCam(player); initKeys(); } private void initCam(Spatial player) { cam.setLocation(player.getLocalTranslation().add(0, 30.0f, 0)); cam.lookAt(playerNode.getLocalTranslation(), Vector3f.UNIT_Z.negate()); // cam.lookAt(playerNode.getLocalTranslation(), Vector3f.UNIT_Y); // cam.setRotation(cam.getRotation().fromAngles(FastMath.DEG_TO_RAD*90, FastMath.DEG_TO_RAD*180, 0)); // Disable the default flyby cam flyCam.setEnabled(false); // Enable a chase cam ChaseCamera chaseCam = new ChaseCamera(cam, player, inputManager); // chaseCam.setTrailingEnabled(false); chaseCam.setDefaultHorizontalRotation(FastMath.DEG_TO_RAD*(90)); chaseCam.setDefaultVerticalRotation(FastMath.DEG_TO_RAD*(90)); } private void initKeys() { //WASD inputManager.addMapping("Left", new KeyTrigger(keyInput.KEY_A)); inputManager.addMapping("Right", new KeyTrigger(keyInput.KEY_D)); inputManager.addMapping("Up", new KeyTrigger(keyInput.KEY_W)); inputManager.addMapping("Down", new KeyTrigger(keyInput.KEY_S)); //ArrowKeys inputManager.addMapping("Left", new KeyTrigger(keyInput.KEY_LEFT)); inputManager.addMapping("Right", new KeyTrigger(keyInput.KEY_RIGHT)); inputManager.addMapping("Up", new KeyTrigger(keyInput.KEY_UP)); inputManager.addMapping("Down", new KeyTrigger(keyInput.KEY_DOWN)); inputManager.addListener(analogListener, new String[]{"Left", "Right", "Up", "Down"}); } private AnalogListener analogListener = new AnalogListener() { public void onAnalog(String name, float value, float tpf) { if (name.equals("Left")) { player.rotate(0, value*speed, 0); } if (name.equals("Right")) { player.rotate(0, -value*speed, 0); } if (name.equals("Up")) { Vector3f v = player.getLocalRotation().getRotationColumn(2).normalize().mult(speed*value*1.4f);; playerNode.move(v.negate()); } if (name.equals("Down")) { Vector3f v = player.getLocalRotation().getRotationColumn(2).normalize().mult(speed*value);; playerNode.move(v); } } }; @Override public void simpleUpdate(float tpf) { //TODO: add update code } @Override public void simpleRender(RenderManager rm) { //TODO: add render code } } </code></pre>
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    1. USLuzius L
    1. USLuzius L
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    1. CODo you need to set the gravity for the world and the player??
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      1. USAmir Afghani
    2. COYes, I think so
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      1. USLuzius L
    3. CO@LuziusL According to the tutorial it's enough to set it globally. Remove both of your gravity settings and try `bulletAppState.getPhysicsSpace.setGravity(new Vector3f(0f,-9.81f,0f));` instead.
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      1. USus2012
 

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