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Diffstat (limited to 'engine/src/test/jme3test/collision/TestMousePick.java')
| -rw-r--r-- | engine/src/test/jme3test/collision/TestMousePick.java | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/engine/src/test/jme3test/collision/TestMousePick.java b/engine/src/test/jme3test/collision/TestMousePick.java new file mode 100644 index 0000000..835b2c6 --- /dev/null +++ b/engine/src/test/jme3test/collision/TestMousePick.java @@ -0,0 +1,153 @@ +/* + * 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.collision; + +import com.jme3.app.SimpleApplication; +import com.jme3.collision.CollisionResult; +import com.jme3.collision.CollisionResults; +import com.jme3.light.DirectionalLight; +import com.jme3.material.Material; +import com.jme3.math.ColorRGBA; +import com.jme3.math.Quaternion; +import com.jme3.math.Ray; +import com.jme3.math.Vector3f; +import com.jme3.scene.Geometry; +import com.jme3.scene.Node; +import com.jme3.scene.Spatial; +import com.jme3.scene.debug.Arrow; +import com.jme3.scene.shape.Box; + +public class TestMousePick extends SimpleApplication { + + public static void main(String[] args) { + TestMousePick app = new TestMousePick(); + app.start(); + } + + Node shootables; + Geometry mark; + + @Override + public void simpleInitApp() { + flyCam.setEnabled(false); + initMark(); // a red sphere to mark the hit + + /** create four colored boxes and a floor to shoot at: */ + shootables = new Node("Shootables"); + rootNode.attachChild(shootables); + shootables.attachChild(makeCube("a Dragon", -2f, 0f, 1f)); + shootables.attachChild(makeCube("a tin can", 1f, -2f, 0f)); + shootables.attachChild(makeCube("the Sheriff", 0f, 1f, -2f)); + shootables.attachChild(makeCube("the Deputy", 1f, 0f, -4f)); + shootables.attachChild(makeFloor()); + shootables.attachChild(makeCharacter()); + } + + @Override + public void simpleUpdate(float tpf){ + Vector3f origin = cam.getWorldCoordinates(inputManager.getCursorPosition(), 0.0f); + Vector3f direction = cam.getWorldCoordinates(inputManager.getCursorPosition(), 0.3f); + direction.subtractLocal(origin).normalizeLocal(); + + Ray ray = new Ray(origin, direction); + CollisionResults results = new CollisionResults(); + shootables.collideWith(ray, results); +// System.out.println("----- Collisions? " + results.size() + "-----"); +// for (int i = 0; i < results.size(); i++) { +// // For each hit, we know distance, impact point, name of geometry. +// float dist = results.getCollision(i).getDistance(); +// Vector3f pt = results.getCollision(i).getWorldContactPoint(); +// String hit = results.getCollision(i).getGeometry().getName(); +// System.out.println("* Collision #" + i); +// System.out.println(" You shot " + hit + " at " + pt + ", " + dist + " wu away."); +// } + if (results.size() > 0) { + CollisionResult closest = results.getClosestCollision(); + mark.setLocalTranslation(closest.getContactPoint()); + + Quaternion q = new Quaternion(); + q.lookAt(closest.getContactNormal(), Vector3f.UNIT_Y); + mark.setLocalRotation(q); + + rootNode.attachChild(mark); + } else { + rootNode.detachChild(mark); + } + } + + /** A cube object for target practice */ + protected Geometry makeCube(String name, float x, float y, float z) { + Box box = new Box(new Vector3f(x, y, z), 1, 1, 1); + Geometry cube = new Geometry(name, box); + Material mat1 = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); + mat1.setColor("Color", ColorRGBA.randomColor()); + cube.setMaterial(mat1); + return cube; + } + + /** A floor to show that the "shot" can go through several objects. */ + protected Geometry makeFloor() { + Box box = new Box(new Vector3f(0, -4, -5), 15, .2f, 15); + Geometry floor = new Geometry("the Floor", box); + Material mat1 = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); + mat1.setColor("Color", ColorRGBA.Gray); + floor.setMaterial(mat1); + return floor; + } + + /** A red ball that marks the last spot that was "hit" by the "shot". */ + protected void initMark() { + Arrow arrow = new Arrow(Vector3f.UNIT_Z.mult(2f)); + arrow.setLineWidth(3); + + //Sphere sphere = new Sphere(30, 30, 0.2f); + mark = new Geometry("BOOM!", arrow); + //mark = new Geometry("BOOM!", sphere); + Material mark_mat = new Material(assetManager, "Common/MatDefs/Misc/Unshaded.j3md"); + mark_mat.setColor("Color", ColorRGBA.Red); + mark.setMaterial(mark_mat); + } + + protected Spatial makeCharacter() { + // load a character from jme3test-test-data + Spatial golem = assetManager.loadModel("Models/Oto/Oto.mesh.xml"); + golem.scale(0.5f); + golem.setLocalTranslation(-1.0f, -1.5f, -0.6f); + + // We must add a light to make the model visible + DirectionalLight sun = new DirectionalLight(); + sun.setDirection(new Vector3f(-0.1f, -0.7f, -1.0f).normalizeLocal()); + golem.addLight(sun); + return golem; + } +} |