From 5ae92859032a54e999f08897a379c069b3dd2ad4 Mon Sep 17 00:00:00 2001 From: Stephen Gold Date: Sun, 26 Apr 2020 23:09:42 -0700 Subject: [PATCH] add a test for issue #1283 --- .../java/jme3test/bullet/TestIssue1283.java | 303 ++++++++++++++++++ 1 file changed, 303 insertions(+) create mode 100644 jme3-examples/src/main/java/jme3test/bullet/TestIssue1283.java diff --git a/jme3-examples/src/main/java/jme3test/bullet/TestIssue1283.java b/jme3-examples/src/main/java/jme3test/bullet/TestIssue1283.java new file mode 100644 index 000000000..522f34065 --- /dev/null +++ b/jme3-examples/src/main/java/jme3test/bullet/TestIssue1283.java @@ -0,0 +1,303 @@ +/* + * Copyright (c) 2020 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.bullet; + +import com.jme3.app.SimpleApplication; +import com.jme3.bullet.BulletAppState; +import com.jme3.bullet.PhysicsSpace; +import com.jme3.bullet.collision.PhysicsCollisionObject; +import com.jme3.bullet.control.RigidBodyControl; +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.input.controls.Trigger; +import com.jme3.light.AmbientLight; +import com.jme3.light.DirectionalLight; +import com.jme3.material.Material; +import com.jme3.math.ColorRGBA; +import com.jme3.math.Quaternion; +import com.jme3.math.Vector2f; +import com.jme3.math.Vector3f; +import com.jme3.scene.Geometry; +import com.jme3.scene.Mesh; +import com.jme3.scene.shape.Box; +import com.jme3.scene.shape.Sphere; +import com.jme3.system.AppSettings; +import java.util.logging.Logger; + +/** + * Test case for JME issue #1283: collision-group filter not applied to CCD. + *

+ * Click RMB or press the "B" key to shoot a ball at the wall. In a successful + * test, all balls will pass through the wall. If any ball rebounds, or is + * deflected, the has test failed. + * + * @author Stephen Gold sgold@sonic.net + */ +public class TestIssue1283 extends SimpleApplication { + // ************************************************************************* + // constants and loggers + + /** + * radius of projectiles + */ + final private static float projectileRadius = 0.7f; + /** + * message logger for this class + */ + final public static Logger logger + = Logger.getLogger(TestIssue1283.class.getName()); + /** + * Mesh to visualize projectiles + */ + final private static Mesh projectileMesh + = new Sphere(32, 32, projectileRadius, true, false); + // ************************************************************************* + // fields + + /** + * Material to visualize projectiles + */ + private Material projectileMaterial; + /** + * Material to visualize the wall + */ + private Material wallMaterial; + /** + * space for physics simulation + */ + private PhysicsSpace physicsSpace; + // ************************************************************************* + // new methods exposed + + /** + * Main entry point for the TestIssue1283 application. + * + * @param ignored array of command-line arguments (not null) + */ + public static void main(String[] ignored) { + TestIssue1283 application = new TestIssue1283(); + AppSettings appSettings = new AppSettings(true); + application.setSettings(appSettings); + application.start(); + } + // ************************************************************************* + // SimpleApplication methods + + /** + * Initialize this application. + */ + @Override + public void simpleInitApp() { + configureCamera(); + configureMaterials(); + viewPort.setBackgroundColor(ColorRGBA.Blue.clone()); + addLighting(); + configurePhysics(); + addWall(); + configureInputs(); + showHints(); + } + // ************************************************************************* + // private methods + + /** + * Add lighting to the scene. + */ + private void addLighting() { + ColorRGBA ambientColor = new ColorRGBA(0.2f, 0.2f, 0.2f, 1f); + AmbientLight ambient = new AmbientLight(ambientColor); + rootNode.addLight(ambient); + + Vector3f direction = new Vector3f(1f, -2f, -2f).normalizeLocal(); + ColorRGBA sunColor = new ColorRGBA(0.5f, 0.5f, 0.5f, 1f); + DirectionalLight sun = new DirectionalLight(direction, sunColor); + rootNode.addLight(sun); + } + + /** + * Add a thin wall to the scene and physics space. + */ + private void addWall() { + float thickness = 0.1f; + Box wallMesh = new Box(10f, 10f, thickness); + Geometry geometry = new Geometry("wall", wallMesh); + rootNode.attachChild(geometry); + geometry.setMaterial(wallMaterial); + + float mass = 0f; // static rigid body + RigidBodyControl physicsControl = new RigidBodyControl(mass); + geometry.addControl(physicsControl); + + physicsControl.setRestitution(0.8f); + physicsSpace.add(physicsControl); + } + + /** + * Configure the camera during startup. + */ + private void configureCamera() { + float fHeight = cam.getFrustumTop() - cam.getFrustumBottom(); + float fWidth = cam.getFrustumRight() - cam.getFrustumLeft(); + float fAspect = fWidth / fHeight; + float yDegrees = 45f; + float near = 0.2f; + float far = 100f; + cam.setFrustumPerspective(yDegrees, fAspect, near, far); + + flyCam.setDragToRotate(true); + flyCam.setMoveSpeed(200f); + + cam.setLocation(new Vector3f(-2f, 2f, 30f)); + cam.setRotation(new Quaternion(0f, 1f, 0f, 0f)); + } + + /** + * Configure the InputManager during startup. + */ + private void configureInputs() { + final String launchActionName = "launch"; + ActionListener actionListener = new ActionListener() { + @Override + public void onAction(String name, boolean ongoing, float tpf) { + if (ongoing) { + if (name.equals(launchActionName)) { + launchProjectile(); + } + } + } + }; + + Trigger bTrigger = new KeyTrigger(KeyInput.KEY_B); + Trigger rmbTrigger = new MouseButtonTrigger(MouseInput.BUTTON_RIGHT); + inputManager.addMapping(launchActionName, bTrigger, rmbTrigger); + inputManager.addListener(actionListener, launchActionName); + } + + /** + * Configure materials during startup. + */ + private void configureMaterials() { + wallMaterial = new Material(assetManager, + "Common/MatDefs/Misc/Unshaded.j3md"); + wallMaterial.setColor("Color", ColorRGBA.White.clone()); + wallMaterial.getAdditionalRenderState().setWireframe(true); + + projectileMaterial = new Material(assetManager, + "Common/MatDefs/Light/Lighting.j3md"); + projectileMaterial.setBoolean("UseMaterialColors", true); + projectileMaterial.setColor("Ambient", ColorRGBA.Red.clone()); + projectileMaterial.setColor("Diffuse", ColorRGBA.Red.clone()); + projectileMaterial.setColor("Specular", ColorRGBA.Black.clone()); + } + + /** + * Configure physics during startup. + */ + private void configurePhysics() { + BulletAppState bulletAppState = new BulletAppState(); + stateManager.attach(bulletAppState); + physicsSpace = bulletAppState.getPhysicsSpace(); + Vector3f gravityVector = new Vector3f(0f, -30f, 0f); + physicsSpace.setGravity(gravityVector); + } + + /** + * Add a projectile to the scene and physics space. Its initial position and + * velocity are determined by the camera the and mouse pointer. + */ + private void launchProjectile() { + Vector2f screenXY = inputManager.getCursorPosition(); + float nearZ = 0f; + Vector3f nearLocation = cam.getWorldCoordinates(screenXY, nearZ); + float farZ = 1f; + Vector3f farLocation = cam.getWorldCoordinates(screenXY, farZ); + Vector3f direction = farLocation.subtract(nearLocation); + direction.normalizeLocal(); + + Geometry geometry = new Geometry("projectile", projectileMesh); + rootNode.attachChild(geometry); + geometry.setLocalTranslation(nearLocation); + geometry.setMaterial(projectileMaterial); + + float mass = 1f; + RigidBodyControl physicsControl = new RigidBodyControl(mass); + geometry.addControl(physicsControl); + + physicsControl.setCcdMotionThreshold(0.01f); + physicsControl.setCcdSweptSphereRadius(projectileRadius); + physicsControl.setCollisionGroup( + PhysicsCollisionObject.COLLISION_GROUP_02); + physicsControl.setCollideWithGroups( + PhysicsCollisionObject.COLLISION_GROUP_02); + physicsControl.setRestitution(0.8f); + + float projectileSpeed = 250f; // physics-space units per second + Vector3f initialVelocity = direction.mult(projectileSpeed); + physicsControl.setLinearVelocity(initialVelocity); + + physicsSpace.add(physicsControl); + } + + /** + * Attach hint text to the GUI node. + */ + private void showHints() { + guiFont = assetManager.loadFont("Interface/Fonts/Default.fnt"); + + int numLines = 4; + BitmapText lines[] = new BitmapText[numLines]; + for (int lineIndex = 0; lineIndex < numLines; ++lineIndex) { + lines[lineIndex] = new BitmapText(guiFont); + } + + lines[0].setText("Test for jMonkeyEngine issue #1283"); + lines[1].setText("Click RMB or press the B key to shoot a ball."); + lines[2].setText("Use W/A/S/D/Q/Z keys to move the camera."); + lines[3].setText("F5: toggle render statistics," + + " C: print camera position, M: print memory statistics"); + + float textHeight = guiFont.getCharSet().getLineHeight(); + float viewHeight = cam.getHeight(); + float viewWidth = cam.getWidth(); + for (int lineIndex = 0; lineIndex < numLines; ++lineIndex) { + float lineWidth = lines[lineIndex].getLineWidth(); + float leftX = Math.round((viewWidth - lineWidth) / 2f); + float topY = viewHeight - lineIndex * textHeight; + lines[lineIndex].setLocalTranslation(leftX, topY, 0f); + guiNode.attachChild(lines[lineIndex]); + } + } +}