Java Code Examples for com.badlogic.gdx.math.Vector3

/**
 * Updates the rigid body parts to follow nodes of the model instance
 */
private void updateBodiesToArmature() {
	// Ragdoll parts should follow the model animation.
	// Loop over each part and set it to the global transform of the armature node it should follow.
	capsuleTransform.set(modelTransform);
	for (Iterator<ObjectMap.Entry<btRigidBody, RigidBodyNodeConnection>> iterator
		 = bodyPartMap.iterator(); iterator.hasNext(); ) {
		ObjectMap.Entry<btRigidBody, RigidBodyNodeConnection> entry = iterator.next();
		RigidBodyNodeConnection data = entry.value;
		btRigidBody body = entry.key;
		Node followNode = data.followNode;
		Vector3 offset = data.bodyNodeOffsets.get(followNode);

		body.proceedToTransform(tmpMatrix.set(capsuleTransform)
				.mul(followNode.globalTransform).translate(offset));
	}
}
 

@Override
public boolean touchUp(int screenX, int screenY, int pointer, int button) {
       Vector3 touchPos = new Vector3();
       touchPos.set(screenX, screenY, 0);
       camera.unproject(touchPos);
       
       for(int i=0;i<buttons.length;i++) {          	
       	if (buttons[i].isPressed(touchPos)) {
       		Gdx.app.log(TAG, "Button " + (i+1) + " pressed");
       		if (i < 3  && isLevelUnlocked[i]) {
       			game.startGame(i);
       			game.gotoGameScreen(null);
       		}
       		else if (i == 3) {
       			game.gotoMenuScreen();
       		}
       		break;
       	}
       }
	return true;
}
 

@Override
public boolean touchUp(int screenX, int screenY, int pointer, int button) {
       Vector3 touchPos = new Vector3();
       touchPos.set(screenX, screenY, 0);
       camera.unproject(touchPos);
       
       for(int i=0;i<buttons.length;i++) {          	
       	if (buttons[i].isPressed(touchPos)) {
       		if (i == 0) {
       			game.gotoMenuScreen();
       		}
       		break;
       	}
       }
	return true;
}
 

/**
 * Get normal at world coordinates. The methods calculates exact point
 * position in terrain coordinates and returns normal at that point. If
 * point doesn't belong to terrain -- it returns default
 * <code>Vector.Y<code> normal.
 * 
 * @param worldX
 *            the x coord in world
 * @param worldZ
 *            the z coord in world
 * @return normal at that point. If point doesn't belong to terrain -- it
 *         returns default <code>Vector.Y<code> normal.
 */
public Vector3 getNormalAtWordCoordinate(float worldX, float worldZ) {
    transform.getTranslation(c00);
    float terrainX = worldX - c00.x;
    float terrainZ = worldZ - c00.z;

    float gridSquareSize = terrainWidth / ((float) vertexResolution - 1);
    int gridX = (int) Math.floor(terrainX / gridSquareSize);
    int gridZ = (int) Math.floor(terrainZ / gridSquareSize);

    if (gridX >= vertexResolution - 1 || gridZ >= vertexResolution - 1 || gridX < 0 || gridZ < 0) {
        return Vector3.Y.cpy();
    }

    return getNormalAt(gridX, gridZ);
}
 

private Vector3 world2Dto3D (PerspectiveCamera camPersp, OrthographicCamera camOrtho, float posPxX, float posPxY) {
	float meshZ = -(camPersp.far - camPersp.position.z) + (camPersp.far * (1 - (camOrtho.zoom)));

	// compute position
	tmpvec.x = (this.positionOffsetPx.x - camPersp.position.x) + (camPersp.viewportWidth / 2) + posPxX;
	tmpvec.y = (this.positionOffsetPx.y + camPersp.position.y) + (camPersp.viewportHeight / 2) - posPxY;
	tmpvec.z = 1;

	tmpvec.x *= ScaleUtils.Scale;
	tmpvec.y *= ScaleUtils.Scale;

	tmpvec.x += ScaleUtils.CropX;
	tmpvec.y += ScaleUtils.CropY;

	// transform to world space
	camPersp.unproject(tmpvec, ScaleUtils.CropX, ScaleUtils.CropY, ScaleUtils.PlayWidth, ScaleUtils.PlayHeight);

	// build model matrix
	tmpvec.z = meshZ;

	return tmpvec;
}
 

@Override
public Float getArgument(String string, CommandSender sender) throws CommandParsingException {
  try {
    if (string.startsWith("@")) {
      Vector3 location = null;
      try {
        location = sender.getLocation();
      } catch (UnsupportedOperationException ignored) {}
      if (location == null) throw new CommandParsingException("command.common.onlyPlayer");

      if (string.length() == 1) return getComponent(location);
      return getComponent(location) + Float.parseFloat(string.substring(1));
    }
    return Float.parseFloat(string);
  } catch (NumberFormatException e) {
    throw new CommandParsingException("command.common.value.coordinate.parsing");
  }
}
 

/**
 * Creates a map over each triangle and its Edge connections to other triangles. Each edge must follow the
 * vertex winding order of the triangle associated with it. Since all triangles are assumed to have the same
 * winding order, this means if two triangles connect, each must have its own edge connection data, where the
 * edge follows the same winding order as the triangle which owns the edge data.
 *
 * @param indexConnections
 * @param triangles
 * @param vertexVectors
 * @return
 */
private static ArrayMap<Triangle, Array<Edge>> createSharedEdgesMap(
		Array<IndexConnection> indexConnections, Array<Triangle> triangles, Vector3[] vertexVectors) {

	ArrayMap<Triangle, Array<Edge>> connectionMap = new ArrayMap<Triangle, Array<Edge>>();
	connectionMap.ordered = true;

	for (Triangle tri : triangles) {
		connectionMap.put(tri, new Array<Edge>());
	}

	for (IndexConnection i : indexConnections) {
		Triangle fromNode = triangles.get(i.fromTriIndex);
		Triangle toNode = triangles.get(i.toTriIndex);
		Vector3 edgeVertexA = vertexVectors[i.edgeVertexIndex1];
		Vector3 edgeVertexB = vertexVectors[i.edgeVertexIndex2];

		Edge edge = new Edge(fromNode, toNode, edgeVertexA, edgeVertexB);
		connectionMap.get(fromNode).add(edge);
		fromNode.connections.add(edge);
	}
	return connectionMap;
}
 

@Override
public void draw () {
	super.draw();

	if (drawDebug) {
		Gdx.gl.glDisable(GL20.GL_DEPTH_TEST);
		Ray<Vector3>[] rays = rayConfigurations[rayConfigurationIndex].getRays();
		shapeRenderer.begin(ShapeType.Line);
		shapeRenderer.setColor(1, 1, 0, 1);
		shapeRenderer.setProjectionMatrix(camera.combined);
		for (int i = 0; i < rays.length; i++) {
			Ray<Vector3> ray = rays[i];
			shapeRenderer.line(ray.start, ray.end);
		}
		shapeRenderer.end();
		Gdx.gl.glEnable(GL20.GL_DEPTH_TEST);
	}
}
 

public Entity rayTest(Ray ray, Vector3 hitPointWorld, short belongsToFlag, short collidesWithFlag,
					  float rayDistance, Bits layers) {
	rayFrom.set(ray.origin);
	rayTo.set(ray.direction).scl(rayDistance).add(rayFrom);
	callback.setCollisionObject(null);
	callback.setClosestHitFraction(1f);
	callback.setRay(ray, rayDistance);
	callback.setLayers(layers);

	callback.setCollisionFilterMask(belongsToFlag);
	callback.setCollisionFilterGroup(collidesWithFlag);

	dynamicsWorld.rayTest(rayFrom, rayTo, callback);

	if (callback.hasHit()) {
		if (hitPointWorld != null) {
			callback.getHitPointWorld(hitPointWorld);
		}
		long entityId = callback.getCollisionObject().getUserPointer();
		return getEntity(entityId);
	}
	return null;
}
 

@Override
public boolean touchUp(int screenX, int screenY, int pointer, int button) {

	/* Checks whether the max amount of balls were spawned */
	if (spawnedBalls < MAX_SPAWNED_BALLS) {
		spawnedBalls++;

		/* Translate camera point to world point */
		Vector3 unprojectedVector = new Vector3();
		camera.unproject(unprojectedVector.set(screenX, screenY, 0));

		/* Create a new ball */
		Shape shape = Box2DFactory.createCircleShape(1);
		FixtureDef fixtureDef = Box2DFactory.createFixture(shape, 2.5f,
				0.25f, 0.75f, false);
		Box2DFactory.createBody(world, BodyType.DynamicBody, fixtureDef,
				new Vector2(unprojectedVector.x, unprojectedVector.y));
	}

	return true;
}
 

public ActuatorEntity addCameraActuator(Camera camera, short height,
		float damping, float minDistanceX, float minDistanceY,
		String followTagEntity) {
	CameraActuator component = (CameraActuator) recoverComponent(ActuatorComponentsLookup.CameraActuator);
	if (component == null) {
		component = new CameraActuator(camera, height, damping,
				minDistanceX, minDistanceY, followTagEntity);
	} else {
		component.actuator = (indexOwner) -> {
			Set<GameEntity> followEntities = Indexed
					.getTagEntities(followTagEntity);
			for (GameEntity followEntity : followEntities) {
				RigidBody rc = followEntity.getRigidBody();
				Transform transform = rc.body.getTransform();
				Vector3 position = camera.position;
				position.x += (transform.getPosition().x + minDistanceX - position.x)
						* damping;
				position.y += (transform.getPosition().y + minDistanceY - position.y)
						* height;
			}
		};
	}
	addComponent(ActuatorComponentsLookup.CameraActuator, component);
	return this;
}
 

public ActuatorEntity replaceCameraActuator(Camera camera, short height,
		float damping, float minDistanceX, float minDistanceY,
		String followTagEntity) {
	CameraActuator component = (CameraActuator) recoverComponent(ActuatorComponentsLookup.CameraActuator);
	if (component == null) {
		component = new CameraActuator(camera, height, damping,
				minDistanceX, minDistanceY, followTagEntity);
	} else {
		component.actuator = (indexOwner) -> {
			Set<GameEntity> followEntities = Indexed
					.getTagEntities(followTagEntity);
			for (GameEntity followEntity : followEntities) {
				RigidBody rc = followEntity.getRigidBody();
				Transform transform = rc.body.getTransform();
				Vector3 position = camera.position;
				position.x += (transform.getPosition().x + minDistanceX - position.x)
						* damping;
				position.y += (transform.getPosition().y + minDistanceY - position.y)
						* height;
			}
		};
	}
	replaceComponent(ActuatorComponentsLookup.CameraActuator, component);
	return this;
}
 

/** Creates a random path which is bound by rectangle described by the min/max values */
private static Array<Vector3> createRandomPath (int numWaypoints, float minX, float minY, float maxX, float maxY, float height) {
	Array<Vector3> wayPoints = new Array<Vector3>();

	float midX = (maxX + minX) / 2f;
	float midY = (maxY + minY) / 2f;

	float smaller = Math.min(midX, midY);

	float spacing = MathUtils.PI2 / numWaypoints;

	for (int i = 0; i < numWaypoints; i++) {
		float radialDist = MathUtils.random(smaller * 0.2f, smaller);
		tmpVector2.set(radialDist, 0.0f);

		// rotates the specified vector angle rads around the origin
		// init and rotate the transformation matrix
		tmpMatrix3.idt().rotateRad(i * spacing);
		// now transform the object's vertices
		tmpVector2.mul(tmpMatrix3);

		wayPoints.add(new Vector3(tmpVector2.x, height, tmpVector2.y));
	}

	return wayPoints;
}
 

@Override
public void render() {
	float deltaTime = Gdx.graphics.getDeltaTime();

	if (Gdx.input.isKeyPressed(Input.Keys.W)) {
		VirtualReality.body.position.add(new Vector3(0, 0, -2).mul(VirtualReality.body.orientation).scl(deltaTime));
	}
	if (Gdx.input.isKeyPressed(Input.Keys.S)) {
		VirtualReality.body.position.add(new Vector3(0, 0, 2).mul(VirtualReality.body.orientation).scl(deltaTime));
	}
	if (Gdx.input.isKeyPressed(Input.Keys.A)) {
		VirtualReality.body.orientation.mulLeft(new Quaternion(Vector3.Y, 90f * deltaTime));
	}
	if (Gdx.input.isKeyPressed(Input.Keys.D)) {
		VirtualReality.body.orientation.mulLeft(new Quaternion(Vector3.Y, -90f * deltaTime));
	}

	VirtualReality.update(Gdx.graphics.getDeltaTime());
	VirtualReality.renderer.render();
}
 

@Override
public boolean touchDragged(int screenX, int screenY, int pointer) {
       if (st.isStarted && !st.isPaused) {
		Vector3 touchPos = new Vector3();
        touchPos.set(screenX, screenY, 0);
        camera.unproject(touchPos);            
        
        if (st.secondsRemaining > 0) {
            basket.setPositionX(touchPos.x); 
        }
       }
	return true;
}
 

private void initWorld() {
    camera = WorldGenerator.generatePerspectiveCamera(1, 150, new Vector3(-8, 10, 15), new Vector3(0, 2, 0));
    batch = new ModelBatch();

    particleUtils = new ParticleUtils();
    particleUtils.initBillBoardParticles(camera);

    //adding generators
    world = WorldGenerator.generateBaseWorld(false, false);
    cloudGenerator = new CloudGenerator(world, 30);
    environment = WorldGenerator.generateBaseEnvironment(new Vector3(-6, 14, 6));
    WorldGenerator.createKinematicIsland(world, new Vector3(0, 0, 0), true);

    WorldHover.reinit();
}
 

public void update(Vector3 position) {
	// optimize for Mobile
	if (Main.isMobile() && Main.frame % 6 != 0) {
		// don't update height
	} else {
		height = Physics.inst.getShadowHeightAboveGround(position) - heightOffset;
	}
	tmp.set(position.x, position.y - height, position.z);
	modelInstance.transform.setToTranslation(tmp);
	modelInstance.transform.rotate(Vector3.Y, Physics.inst.raycastReport.hitNormal);
}
 

@Override
public void write(Json json) {
	super.write(json);

	BladeJson bjson = (BladeJson) json;
	if (bjson.getMode() == Mode.MODEL) {
		float worldScale = EngineAssetManager.getInstance().getScale();
		json.writeValue("width", width / worldScale);
		json.writeValue("height", height / worldScale);
		json.writeValue("cameraPos", cameraPos, cameraPos == null ? null : Vector3.class);
		json.writeValue("cameraRot", cameraRot, cameraRot == null ? null : Vector3.class);
		json.writeValue("cameraName", cameraName, cameraName == null ? null : String.class);
		json.writeValue("cameraFOV", cameraFOV);
		json.writeValue("renderShadow", renderShadow);
	} else {

		if (animationCb != null)
			json.writeValue("animationCb",
					ActionCallbackSerializer.find(bjson.getWorld(), bjson.getScene(), animationCb));

		json.writeValue("currentCount", currentCount);
		json.writeValue("currentAnimationType", currentAnimationType);
		json.writeValue("lastAnimationTime", lastAnimationTime);

		// TODO: SAVE AND RESTORE CURRENT DIRECTION
		// TODO: shadowlight, cel light
	}

	json.writeValue("modelRotation", modelRotation);
}
 

@Override
public void create() {
	
	sceneManager = createSceneManager();
	sceneManager.camera = camera = new PerspectiveCamera();
	camera.fieldOfView = 50;
	camera.near = 0.01f;
	camera.far = 10f;
	camera.position.set(1, 1, 1).scl(.1f);
	camera.up.set(Vector3.Y);
	camera.lookAt(Vector3.Zero);
	camera.update();
	
	// load user scene
	SceneAsset asset = new GLTFLoader().load(Gdx.files.internal("models/BoomBox/glTF/BoomBox.gltf"));
	sceneManager.addScene(new Scene(asset.scene));
	
	cameraController = new CameraInputController(camera);
	cameraController.translateUnits = .1f;
	Gdx.input.setInputProcessor(cameraController);

	viewport = new FitViewport(1000, 500, camera);
	
	// post processing
	if(postProcessingEnabled){
		fbo = new FrameBuffer(Format.RGBA8888, Gdx.graphics.getWidth(), Gdx.graphics.getHeight(), true);
		effectShader = new ShaderProgram(Gdx.files.classpath("shaders/effect.vs.glsl"), Gdx.files.classpath("shaders/effect.fs.glsl"));
		batch = new SpriteBatch();
	}
	
}
 

@Override
public Integer place(World world, int x, int y, int z, int meta, Player player, BlockIntersection intersection) {
  Vector3 pos = player.position.cpy();
  pos.sub(x, y, z);
  pos.nor();
  BlockFace blockFace = VectorUtil.directionXZ(pos);
  if (blockFace == BlockFace.negX) {
    return 1;
  } else if (blockFace == BlockFace.posZ) {
    return 2;
  } else if (blockFace == BlockFace.negZ) {
    return 3;
  }
  return 0;
}
 

/** https://github.com/KhronosGroup/glTF/blob/master/specification/2.0/README.md#appendix-c-spline-interpolation */
private static void cubic(Vector3 out, float t, Vector3 p0, Vector3 m0, Vector3 p1, Vector3 m1){
	// p(t) = (2t3 - 3t2 + 1)p0 + (t3 - 2t2 + t)m0 + (-2t3 + 3t2)p1 + (t3 - t2)m1
	float t2 = t*t;
	float t3 = t2*t;
	out.set(p0).scl(2*t3 - 3*t2 + 1).mulAdd(m0, t3 - 2*t2 + t).mulAdd(p1, -2*t3 + 3*t2).mulAdd(m1, t3-t2);
}
 

private void handleBulletPackage(BulletPackage bpack) {
	//Log.debug("client creating bullets: " + bpack.locations.length);
	for (Vector3 hitLoc : bpack.locations) {
		//Log.debug("\tlocation: " + Tools.fmt(hitLoc));
		Main.inst.clientEventManager.addEventToQueue(new ClientEvent.CreateBullet(hitLoc.x, hitLoc.y, hitLoc.z));
	}
}
 

/** Creates a random path which is bound by rectangle described by the min/max values */
private static Array<Vector3> createRandomPath (int numWaypoints, float minX, float minY, float maxX, float maxY, float height) {
	Array<Vector3> wayPoints = new Array<Vector3>(numWaypoints);
	wayPoints.size = numWaypoints;

	float midX = (maxX + minX) / 2f;
	float midY = (maxY + minY) / 2f;

	float smaller = Math.min(midX, midY);

	float spacing = MathUtils.PI2 / (numWaypoints - 0);

	for (int i = 0; i < numWaypoints - 2; i++) {
		float radialDist = MathUtils.random(smaller * 0.2f, smaller);
		tmpVector2.set(radialDist, 0.0f);

		// rotates the specified vector angle rads around the origin
		// init and rotate the transformation matrix
		tmpMatrix3.idt().rotateRad(i * spacing);
		// now transform the object's vertices
		tmpVector2.mul(tmpMatrix3);

		wayPoints.set(i + 1, new Vector3(tmpVector2.x, height, tmpVector2.y));
		System.out.println((i + 1) + ": " + wayPoints.get(i + 1));
	}

	Vector3 midpoint = new Vector3(wayPoints.get(1)).add(wayPoints.get(numWaypoints - 2)).scl(0.5f);
	System.out.println("midpoint = " + midpoint);
	// Set the landing point
	wayPoints.set(0, new Vector3(wayPoints.get(1)).add(midpoint).scl(1f / 3f));
	wayPoints.get(0).y = height;
	// Set the takeoff point
	wayPoints.set(numWaypoints - 1, new Vector3(midpoint).add(wayPoints.get(numWaypoints - 2)).scl(1f / 3f));
	wayPoints.get(numWaypoints - 1).y = height;
	System.out.println("0: " + wayPoints.first());
	System.out.println((numWaypoints - 1) + ": " + wayPoints.peek());

	return wayPoints;
}
 

public void setControlPath(ArrayList<Vector3> controlPath) {
	if (this.controlPath != null) {
		this.controlPath.clear();
		this.controlPath = null;
	}
	if (controlPath == null) { return; }
	this.controlPath = new ArrayList<Vector3>();
	Vector3 v;
	for (int i=0; i<controlPath.size(); i++) {
		v = controlPath.get(i);
		this.controlPath.add(new Vector3(v.x, v.y, 0f));
	}
}
 

public HelpScreen (SuperJumper game) {
	this.game = game;
	guiCam = new OrthographicCamera();
	guiCam.setToOrtho(false, 320, 480);
	nextBounds = new Rectangle(320 - 64, 0, 64, 64);
	touchPoint = new Vector3();
	helpImage = Assets.loadTexture("data/help1.png");
	helpRegion = new TextureRegion(helpImage, 0, 0, 320, 480);
}
 

private static void placeCave(Vector3 island) {
    Matrix4 transform = new Matrix4();
    transform.setToTranslation(new Vector3(-5.4f, -.45f, -2.9f).add(island));
    transform.rotate(new Vector3(0, 1, 0), -35);
    Builder.setBuildModel(Models.MODEL_CAVE_PROTOTYPE);
    Builder.build(transform);
}
 

@Override
public void draw(Batch batch) {
    dead = true; // assume we're death
    final Vector3 translation = batch.getTransformMatrix().getTranslation(new Vector3());
    for (int i = shards.length; i-- != 0; ) {
        shards[i].draw(batch, Gdx.graphics.getDeltaTime());
        dead &= translation.y + shards[i].pos.y + shards[i].size < 0; // all must be dead
    }
}
 

public static Float[] array(Vector3 vector3) {
  Float[] floats = new Float[3];
  floats[0] = vector3.x;
  floats[1] = vector3.y;
  floats[2] = vector3.z;
  return floats;
}
 

public MainMenuScreen (SuperJumper game) {
	this.game = game;

	guiCam = new OrthographicCamera(320, 480);
	guiCam.position.set(320 / 2, 480 / 2, 0);
	soundBounds = new Rectangle(0, 0, 64, 64);
	playBounds = new Rectangle(160 - 150, 200 + 18, 300, 36);
	highscoresBounds = new Rectangle(160 - 150, 200 - 18, 300, 36);
	helpBounds = new Rectangle(160 - 150, 200 - 18 - 36, 300, 36);
	touchPoint = new Vector3();
}
 

private void executeRayCast(Vector3 position, Vector3 end, RayResultCallback callback) {
	raycastReport.reset();
	world.rayTest(position, end, callback);
	raycastReport.hit = callback.hasHit();
	if (raycastReport.hit) {
		float length = position.dst(end);
		raycastReport.hitDistance = length * callback.getClosestHitFraction();
		if (callback instanceof ClosestRayResultCallback) {
			ClosestRayResultCallback cb = (ClosestRayResultCallback) callback;
			Vector3 normal = tmp;
			cb.getHitNormalWorld(tmp);
			raycastReport.hitNormal.set(normal.x, normal.y, normal.z);
		}
	}
}