| /* |
| * Copyright (c) 2009-2010 jMonkeyEngine |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * * Neither the name of 'jMonkeyEngine' nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
| * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package jme3test.terrain; |
| |
| import com.jme3.bullet.collision.shapes.SphereCollisionShape; |
| import com.jme3.app.SimpleApplication; |
| import com.jme3.bounding.BoundingBox; |
| import com.jme3.bullet.BulletAppState; |
| import com.jme3.bullet.collision.shapes.SphereCollisionShape; |
| import com.jme3.bullet.control.RigidBodyControl; |
| import com.jme3.collision.CollisionResult; |
| import com.jme3.collision.CollisionResults; |
| import com.jme3.font.BitmapText; |
| import com.jme3.input.KeyInput; |
| import com.jme3.input.MouseInput; |
| import com.jme3.input.controls.ActionListener; |
| import com.jme3.input.controls.KeyTrigger; |
| import com.jme3.input.controls.MouseButtonTrigger; |
| import com.jme3.light.DirectionalLight; |
| import com.jme3.light.PointLight; |
| import com.jme3.material.Material; |
| import com.jme3.math.ColorRGBA; |
| import com.jme3.math.Ray; |
| import com.jme3.math.Vector2f; |
| import com.jme3.math.Vector3f; |
| import com.jme3.scene.Geometry; |
| import com.jme3.scene.Node; |
| import com.jme3.scene.shape.Box; |
| import com.jme3.scene.shape.Sphere; |
| import com.jme3.terrain.geomipmap.TerrainLodControl; |
| import com.jme3.terrain.geomipmap.TerrainQuad; |
| import com.jme3.terrain.geomipmap.lodcalc.DistanceLodCalculator; |
| import com.jme3.terrain.heightmap.AbstractHeightMap; |
| import com.jme3.terrain.heightmap.ImageBasedHeightMap; |
| import com.jme3.texture.Texture; |
| import com.jme3.texture.Texture.WrapMode; |
| import jme3tools.converters.ImageToAwt; |
| |
| /** |
| * Creates a terrain object and a collision node to go with it. Then |
| * drops several balls from the sky that collide with the terrain |
| * and roll around. |
| * Left click to place a sphere on the ground where the crosshairs intersect the terrain. |
| * Hit keys 1 or 2 to raise/lower the terrain at that spot. |
| * |
| * @author Brent Owens |
| */ |
| public class TerrainTestCollision extends SimpleApplication { |
| |
| TerrainQuad terrain; |
| Node terrainPhysicsNode; |
| Material matRock; |
| Material matWire; |
| boolean wireframe = false; |
| protected BitmapText hintText; |
| PointLight pl; |
| Geometry lightMdl; |
| Geometry collisionMarker; |
| private BulletAppState bulletAppState; |
| Geometry collisionSphere; |
| Geometry collisionBox; |
| Geometry selectedCollisionObject; |
| |
| public static void main(String[] args) { |
| TerrainTestCollision app = new TerrainTestCollision(); |
| app.start(); |
| } |
| |
| @Override |
| public void initialize() { |
| super.initialize(); |
| loadHintText(); |
| initCrossHairs(); |
| } |
| |
| @Override |
| public void simpleInitApp() { |
| bulletAppState = new BulletAppState(); |
| bulletAppState.setThreadingType(BulletAppState.ThreadingType.PARALLEL); |
| stateManager.attach(bulletAppState); |
| setupKeys(); |
| matRock = new Material(assetManager, "Common/MatDefs/Terrain/Terrain.j3md"); |
| matRock.setTexture("Alpha", assetManager.loadTexture("Textures/Terrain/splat/alphamap.png")); |
| Texture heightMapImage = assetManager.loadTexture("Textures/Terrain/splat/mountains512.png"); |
| Texture grass = assetManager.loadTexture("Textures/Terrain/splat/grass.jpg"); |
| grass.setWrap(WrapMode.Repeat); |
| matRock.setTexture("Tex1", grass); |
| matRock.setFloat("Tex1Scale", 64f); |
| Texture dirt = assetManager.loadTexture("Textures/Terrain/splat/dirt.jpg"); |
| dirt.setWrap(WrapMode.Repeat); |
| matRock.setTexture("Tex2", dirt); |
| matRock.setFloat("Tex2Scale", 32f); |
| Texture rock = assetManager.loadTexture("Textures/Terrain/splat/road.jpg"); |
| rock.setWrap(WrapMode.Repeat); |
| matRock.setTexture("Tex3", rock); |
| matRock.setFloat("Tex3Scale", 128f); |
| matWire = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); |
| matWire.getAdditionalRenderState().setWireframe(true); |
| matWire.setColor("Color", ColorRGBA.Green); |
| AbstractHeightMap heightmap = null; |
| try { |
| heightmap = new ImageBasedHeightMap(heightMapImage.getImage(), 0.25f); |
| heightmap.load(); |
| |
| } catch (Exception e) { |
| } |
| |
| terrain = new TerrainQuad("terrain", 65, 513, heightmap.getHeightMap()); |
| TerrainLodControl control = new TerrainLodControl(terrain, getCamera()); |
| control.setLodCalculator( new DistanceLodCalculator(65, 2.7f) ); // patch size, and a multiplier |
| terrain.addControl(control); |
| terrain.setMaterial(matRock); |
| terrain.setLocalScale(new Vector3f(2, 2, 2)); |
| terrain.setLocked(false); // unlock it so we can edit the height |
| rootNode.attachChild(terrain); |
| |
| |
| /** |
| * Create PhysicsRigidBodyControl for collision |
| */ |
| terrain.addControl(new RigidBodyControl(0)); |
| bulletAppState.getPhysicsSpace().addAll(terrain); |
| |
| |
| // Add 5 physics spheres to the world, with random sizes and positions |
| // let them drop from the sky |
| for (int i = 0; i < 5; i++) { |
| float r = (float) (8 * Math.random()); |
| Geometry sphere = new Geometry("cannonball", new Sphere(10, 10, r)); |
| sphere.setMaterial(matWire); |
| float x = (float) (20 * Math.random()) - 40; // random position |
| float y = (float) (20 * Math.random()) - 40; // random position |
| float z = (float) (20 * Math.random()) - 40; // random position |
| sphere.setLocalTranslation(new Vector3f(x, 100 + y, z)); |
| sphere.addControl(new RigidBodyControl(new SphereCollisionShape(r), 2)); |
| rootNode.attachChild(sphere); |
| bulletAppState.getPhysicsSpace().add(sphere); |
| } |
| |
| collisionBox = new Geometry("collisionBox", new Box(2, 2, 2)); |
| collisionBox.setModelBound(new BoundingBox()); |
| collisionBox.setLocalTranslation(new Vector3f(20, 95, 30)); |
| collisionBox.setMaterial(matWire); |
| rootNode.attachChild(collisionBox); |
| selectedCollisionObject = collisionBox; |
| |
| DirectionalLight dl = new DirectionalLight(); |
| dl.setDirection(new Vector3f(1, -0.5f, -0.1f).normalizeLocal()); |
| dl.setColor(new ColorRGBA(0.50f, 0.40f, 0.50f, 1.0f)); |
| rootNode.addLight(dl); |
| |
| cam.setLocation(new Vector3f(0, 25, -10)); |
| cam.lookAtDirection(new Vector3f(0, -1, 0).normalizeLocal(), Vector3f.UNIT_Y); |
| } |
| |
| public void loadHintText() { |
| hintText = new BitmapText(guiFont, false); |
| hintText.setSize(guiFont.getCharSet().getRenderedSize()); |
| hintText.setLocalTranslation(0, getCamera().getHeight(), 0); |
| //hintText.setText("Hit T to switch to wireframe"); |
| hintText.setText(""); |
| guiNode.attachChild(hintText); |
| } |
| |
| protected void initCrossHairs() { |
| //guiFont = assetManager.loadFont("Interface/Fonts/Default.fnt"); |
| BitmapText ch = new BitmapText(guiFont, false); |
| ch.setSize(guiFont.getCharSet().getRenderedSize() * 2); |
| ch.setText("+"); // crosshairs |
| ch.setLocalTranslation( // center |
| settings.getWidth() / 2 - guiFont.getCharSet().getRenderedSize() / 3 * 2, |
| settings.getHeight() / 2 + ch.getLineHeight() / 2, 0); |
| guiNode.attachChild(ch); |
| } |
| |
| private void setupKeys() { |
| flyCam.setMoveSpeed(50); |
| inputManager.addMapping("wireframe", new KeyTrigger(KeyInput.KEY_T)); |
| inputManager.addListener(actionListener, "wireframe"); |
| inputManager.addMapping("Lefts", new KeyTrigger(KeyInput.KEY_H)); |
| inputManager.addMapping("Rights", new KeyTrigger(KeyInput.KEY_K)); |
| inputManager.addMapping("Ups", new KeyTrigger(KeyInput.KEY_U)); |
| inputManager.addMapping("Downs", new KeyTrigger(KeyInput.KEY_J)); |
| inputManager.addMapping("Forwards", new KeyTrigger(KeyInput.KEY_Y)); |
| inputManager.addMapping("Backs", new KeyTrigger(KeyInput.KEY_I)); |
| inputManager.addListener(actionListener, "Lefts"); |
| inputManager.addListener(actionListener, "Rights"); |
| inputManager.addListener(actionListener, "Ups"); |
| inputManager.addListener(actionListener, "Downs"); |
| inputManager.addListener(actionListener, "Forwards"); |
| inputManager.addListener(actionListener, "Backs"); |
| inputManager.addMapping("shoot", new MouseButtonTrigger(MouseInput.BUTTON_LEFT)); |
| inputManager.addListener(actionListener, "shoot"); |
| inputManager.addMapping("cameraDown", new MouseButtonTrigger(MouseInput.BUTTON_RIGHT)); |
| inputManager.addListener(actionListener, "cameraDown"); |
| } |
| |
| @Override |
| public void update() { |
| super.update(); |
| } |
| |
| private void createCollisionMarker() { |
| Sphere s = new Sphere(6, 6, 1); |
| collisionMarker = new Geometry("collisionMarker"); |
| collisionMarker.setMesh(s); |
| Material mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); |
| mat.setColor("Color", ColorRGBA.Orange); |
| collisionMarker.setMaterial(mat); |
| rootNode.attachChild(collisionMarker); |
| } |
| private ActionListener actionListener = new ActionListener() { |
| |
| public void onAction(String binding, boolean keyPressed, float tpf) { |
| if (binding.equals("wireframe") && !keyPressed) { |
| wireframe = !wireframe; |
| if (!wireframe) { |
| terrain.setMaterial(matWire); |
| } else { |
| terrain.setMaterial(matRock); |
| } |
| } else if (binding.equals("shoot") && !keyPressed) { |
| |
| Vector3f origin = cam.getWorldCoordinates(new Vector2f(settings.getWidth() / 2, settings.getHeight() / 2), 0.0f); |
| Vector3f direction = cam.getWorldCoordinates(new Vector2f(settings.getWidth() / 2, settings.getHeight() / 2), 0.3f); |
| direction.subtractLocal(origin).normalizeLocal(); |
| |
| |
| Ray ray = new Ray(origin, direction); |
| CollisionResults results = new CollisionResults(); |
| int numCollisions = terrain.collideWith(ray, results); |
| if (numCollisions > 0) { |
| CollisionResult hit = results.getClosestCollision(); |
| if (collisionMarker == null) { |
| createCollisionMarker(); |
| } |
| Vector2f loc = new Vector2f(hit.getContactPoint().x, hit.getContactPoint().z); |
| float height = terrain.getHeight(loc); |
| System.out.println("collide " + hit.getContactPoint() + ", height: " + height + ", distance: " + hit.getDistance()); |
| collisionMarker.setLocalTranslation(new Vector3f(hit.getContactPoint().x, height, hit.getContactPoint().z)); |
| } |
| } else if (binding.equals("cameraDown") && !keyPressed) { |
| getCamera().lookAtDirection(new Vector3f(0, -1, 0), Vector3f.UNIT_Y); |
| } else if (binding.equals("Lefts") && !keyPressed) { |
| Vector3f oldLoc = selectedCollisionObject.getLocalTranslation().clone(); |
| selectedCollisionObject.move(-0.5f, 0, 0); |
| testCollision(oldLoc); |
| } else if (binding.equals("Rights") && !keyPressed) { |
| Vector3f oldLoc = selectedCollisionObject.getLocalTranslation().clone(); |
| selectedCollisionObject.move(0.5f, 0, 0); |
| testCollision(oldLoc); |
| } else if (binding.equals("Forwards") && !keyPressed) { |
| Vector3f oldLoc = selectedCollisionObject.getLocalTranslation().clone(); |
| selectedCollisionObject.move(0, 0, 0.5f); |
| testCollision(oldLoc); |
| } else if (binding.equals("Backs") && !keyPressed) { |
| Vector3f oldLoc = selectedCollisionObject.getLocalTranslation().clone(); |
| selectedCollisionObject.move(0, 0, -0.5f); |
| testCollision(oldLoc); |
| } else if (binding.equals("Ups") && !keyPressed) { |
| Vector3f oldLoc = selectedCollisionObject.getLocalTranslation().clone(); |
| selectedCollisionObject.move(0, 0.5f, 0); |
| testCollision(oldLoc); |
| } else if (binding.equals("Downs") && !keyPressed) { |
| Vector3f oldLoc = selectedCollisionObject.getLocalTranslation().clone(); |
| selectedCollisionObject.move(0, -0.5f, 0); |
| testCollision(oldLoc); |
| } |
| |
| } |
| }; |
| |
| private void testCollision(Vector3f oldLoc) { |
| if (terrain.collideWith(selectedCollisionObject.getWorldBound(), new CollisionResults()) > 0) { |
| selectedCollisionObject.setLocalTranslation(oldLoc); |
| } |
| } |
| } |
