add a test for issue #1283
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Stephen Gold
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jme3-examples/src/main/java/jme3test/bullet/TestIssue1283.java
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303
jme3-examples/src/main/java/jme3test/bullet/TestIssue1283.java
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/*
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* Copyright (c) 2020 jMonkeyEngine
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of 'jMonkeyEngine' nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package jme3test.bullet;
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import com.jme3.app.SimpleApplication;
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import com.jme3.bullet.BulletAppState;
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import com.jme3.bullet.PhysicsSpace;
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import com.jme3.bullet.collision.PhysicsCollisionObject;
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import com.jme3.bullet.control.RigidBodyControl;
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import com.jme3.font.BitmapText;
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import com.jme3.input.KeyInput;
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import com.jme3.input.MouseInput;
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import com.jme3.input.controls.ActionListener;
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import com.jme3.input.controls.KeyTrigger;
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import com.jme3.input.controls.MouseButtonTrigger;
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import com.jme3.input.controls.Trigger;
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import com.jme3.light.AmbientLight;
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import com.jme3.light.DirectionalLight;
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import com.jme3.material.Material;
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import com.jme3.math.ColorRGBA;
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import com.jme3.math.Quaternion;
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import com.jme3.math.Vector2f;
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import com.jme3.math.Vector3f;
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import com.jme3.scene.Geometry;
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import com.jme3.scene.Mesh;
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import com.jme3.scene.shape.Box;
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import com.jme3.scene.shape.Sphere;
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import com.jme3.system.AppSettings;
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import java.util.logging.Logger;
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/**
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* Test case for JME issue #1283: collision-group filter not applied to CCD.
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* <p>
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* Click RMB or press the "B" key to shoot a ball at the wall. In a successful
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* test, all balls will pass through the wall. If any ball rebounds, or is
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* deflected, the has test failed.
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*
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* @author Stephen Gold sgold@sonic.net
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*/
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public class TestIssue1283 extends SimpleApplication {
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// *************************************************************************
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// constants and loggers
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/**
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* radius of projectiles
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*/
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final private static float projectileRadius = 0.7f;
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/**
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* message logger for this class
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*/
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final public static Logger logger
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= Logger.getLogger(TestIssue1283.class.getName());
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/**
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* Mesh to visualize projectiles
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*/
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final private static Mesh projectileMesh
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= new Sphere(32, 32, projectileRadius, true, false);
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// *************************************************************************
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// fields
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/**
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* Material to visualize projectiles
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*/
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private Material projectileMaterial;
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/**
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* Material to visualize the wall
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*/
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private Material wallMaterial;
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/**
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* space for physics simulation
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*/
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private PhysicsSpace physicsSpace;
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// *************************************************************************
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// new methods exposed
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/**
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* Main entry point for the TestIssue1283 application.
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*
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* @param ignored array of command-line arguments (not null)
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*/
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public static void main(String[] ignored) {
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TestIssue1283 application = new TestIssue1283();
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AppSettings appSettings = new AppSettings(true);
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application.setSettings(appSettings);
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application.start();
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}
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// *************************************************************************
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// SimpleApplication methods
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/**
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* Initialize this application.
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*/
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@Override
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public void simpleInitApp() {
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configureCamera();
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configureMaterials();
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viewPort.setBackgroundColor(ColorRGBA.Blue.clone());
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addLighting();
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configurePhysics();
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addWall();
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configureInputs();
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showHints();
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}
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// *************************************************************************
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// private methods
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/**
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* Add lighting to the scene.
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*/
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private void addLighting() {
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ColorRGBA ambientColor = new ColorRGBA(0.2f, 0.2f, 0.2f, 1f);
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AmbientLight ambient = new AmbientLight(ambientColor);
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rootNode.addLight(ambient);
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Vector3f direction = new Vector3f(1f, -2f, -2f).normalizeLocal();
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ColorRGBA sunColor = new ColorRGBA(0.5f, 0.5f, 0.5f, 1f);
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DirectionalLight sun = new DirectionalLight(direction, sunColor);
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rootNode.addLight(sun);
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}
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/**
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* Add a thin wall to the scene and physics space.
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*/
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private void addWall() {
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float thickness = 0.1f;
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Box wallMesh = new Box(10f, 10f, thickness);
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Geometry geometry = new Geometry("wall", wallMesh);
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rootNode.attachChild(geometry);
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geometry.setMaterial(wallMaterial);
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float mass = 0f; // static rigid body
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RigidBodyControl physicsControl = new RigidBodyControl(mass);
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geometry.addControl(physicsControl);
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physicsControl.setRestitution(0.8f);
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physicsSpace.add(physicsControl);
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}
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/**
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* Configure the camera during startup.
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*/
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private void configureCamera() {
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float fHeight = cam.getFrustumTop() - cam.getFrustumBottom();
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float fWidth = cam.getFrustumRight() - cam.getFrustumLeft();
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float fAspect = fWidth / fHeight;
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float yDegrees = 45f;
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float near = 0.2f;
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float far = 100f;
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cam.setFrustumPerspective(yDegrees, fAspect, near, far);
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flyCam.setDragToRotate(true);
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flyCam.setMoveSpeed(200f);
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cam.setLocation(new Vector3f(-2f, 2f, 30f));
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cam.setRotation(new Quaternion(0f, 1f, 0f, 0f));
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}
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/**
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* Configure the InputManager during startup.
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*/
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private void configureInputs() {
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final String launchActionName = "launch";
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ActionListener actionListener = new ActionListener() {
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@Override
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public void onAction(String name, boolean ongoing, float tpf) {
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if (ongoing) {
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if (name.equals(launchActionName)) {
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launchProjectile();
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}
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}
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}
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};
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Trigger bTrigger = new KeyTrigger(KeyInput.KEY_B);
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Trigger rmbTrigger = new MouseButtonTrigger(MouseInput.BUTTON_RIGHT);
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inputManager.addMapping(launchActionName, bTrigger, rmbTrigger);
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inputManager.addListener(actionListener, launchActionName);
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}
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/**
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* Configure materials during startup.
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*/
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private void configureMaterials() {
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wallMaterial = new Material(assetManager,
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"Common/MatDefs/Misc/Unshaded.j3md");
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wallMaterial.setColor("Color", ColorRGBA.White.clone());
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wallMaterial.getAdditionalRenderState().setWireframe(true);
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projectileMaterial = new Material(assetManager,
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"Common/MatDefs/Light/Lighting.j3md");
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projectileMaterial.setBoolean("UseMaterialColors", true);
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projectileMaterial.setColor("Ambient", ColorRGBA.Red.clone());
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projectileMaterial.setColor("Diffuse", ColorRGBA.Red.clone());
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projectileMaterial.setColor("Specular", ColorRGBA.Black.clone());
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}
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/**
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* Configure physics during startup.
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*/
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private void configurePhysics() {
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BulletAppState bulletAppState = new BulletAppState();
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stateManager.attach(bulletAppState);
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physicsSpace = bulletAppState.getPhysicsSpace();
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Vector3f gravityVector = new Vector3f(0f, -30f, 0f);
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physicsSpace.setGravity(gravityVector);
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}
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/**
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* Add a projectile to the scene and physics space. Its initial position and
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* velocity are determined by the camera the and mouse pointer.
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*/
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private void launchProjectile() {
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Vector2f screenXY = inputManager.getCursorPosition();
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float nearZ = 0f;
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Vector3f nearLocation = cam.getWorldCoordinates(screenXY, nearZ);
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float farZ = 1f;
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Vector3f farLocation = cam.getWorldCoordinates(screenXY, farZ);
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Vector3f direction = farLocation.subtract(nearLocation);
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direction.normalizeLocal();
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Geometry geometry = new Geometry("projectile", projectileMesh);
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rootNode.attachChild(geometry);
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geometry.setLocalTranslation(nearLocation);
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geometry.setMaterial(projectileMaterial);
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float mass = 1f;
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RigidBodyControl physicsControl = new RigidBodyControl(mass);
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geometry.addControl(physicsControl);
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physicsControl.setCcdMotionThreshold(0.01f);
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physicsControl.setCcdSweptSphereRadius(projectileRadius);
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physicsControl.setCollisionGroup(
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PhysicsCollisionObject.COLLISION_GROUP_02);
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physicsControl.setCollideWithGroups(
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PhysicsCollisionObject.COLLISION_GROUP_02);
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physicsControl.setRestitution(0.8f);
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float projectileSpeed = 250f; // physics-space units per second
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Vector3f initialVelocity = direction.mult(projectileSpeed);
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physicsControl.setLinearVelocity(initialVelocity);
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physicsSpace.add(physicsControl);
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}
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/**
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* Attach hint text to the GUI node.
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*/
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private void showHints() {
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guiFont = assetManager.loadFont("Interface/Fonts/Default.fnt");
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int numLines = 4;
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BitmapText lines[] = new BitmapText[numLines];
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for (int lineIndex = 0; lineIndex < numLines; ++lineIndex) {
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lines[lineIndex] = new BitmapText(guiFont);
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}
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lines[0].setText("Test for jMonkeyEngine issue #1283");
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lines[1].setText("Click RMB or press the B key to shoot a ball.");
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lines[2].setText("Use W/A/S/D/Q/Z keys to move the camera.");
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lines[3].setText("F5: toggle render statistics,"
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+ " C: print camera position, M: print memory statistics");
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float textHeight = guiFont.getCharSet().getLineHeight();
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float viewHeight = cam.getHeight();
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float viewWidth = cam.getWidth();
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for (int lineIndex = 0; lineIndex < numLines; ++lineIndex) {
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float lineWidth = lines[lineIndex].getLineWidth();
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float leftX = Math.round((viewWidth - lineWidth) / 2f);
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float topY = viewHeight - lineIndex * textHeight;
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lines[lineIndex].setLocalTranslation(leftX, topY, 0f);
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guiNode.attachChild(lines[lineIndex]);
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}
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}
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}
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