jMonkeyEngine3 - Rolling The Monkey
I haven't really had much time to work on game development in the last well... year. But just to make sure that I not all is lost I create a quick jMonkeyEngine Game sample hopefully I can get it merged into the official examples project well this is just going to be a quick post, there's actually nothing too it it is only one class after all...lol.
If it doesn't make it to the official branch here's the source...
My example was approved and merged into the official jMonkeyEngine examples project.
RollingTheMonkey Source
It's been fun...LOL
My example was approved and merged into the official jMonkeyEngine examples project.
RollingTheMonkey Source
/*
* Copyright (c) 2009-2017 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.games;
import com.jme3.app.SimpleApplication;
import com.jme3.bullet.BulletAppState;
import com.jme3.bullet.PhysicsSpace;
import com.jme3.bullet.collision.PhysicsCollisionEvent;
import com.jme3.bullet.collision.PhysicsCollisionListener;
import com.jme3.bullet.collision.shapes.BoxCollisionShape;
import com.jme3.bullet.collision.shapes.CompoundCollisionShape;
import com.jme3.bullet.collision.shapes.SphereCollisionShape;
import com.jme3.bullet.control.GhostControl;
import com.jme3.bullet.control.RigidBodyControl;
import com.jme3.font.BitmapText;
import com.jme3.input.KeyInput;
import com.jme3.input.controls.ActionListener;
import com.jme3.input.controls.KeyTrigger;
import com.jme3.light.DirectionalLight;
import com.jme3.material.Material;
import com.jme3.math.ColorRGBA;
import com.jme3.math.FastMath;
import com.jme3.math.Quaternion;
import com.jme3.math.Vector3f;
import com.jme3.post.FilterPostProcessor;
import com.jme3.renderer.queue.RenderQueue.ShadowMode;
import com.jme3.scene.Geometry;
import com.jme3.scene.Node;
import com.jme3.scene.Spatial;
import com.jme3.scene.shape.Box;
import com.jme3.scene.shape.Sphere;
import com.jme3.shadow.DirectionalLightShadowFilter;
import java.util.concurrent.Callable;
/**
* Physics based marble game.
*
* @author SkidRunner (Mark E. Picknell)
*/
public class RollingTheMonkey extends SimpleApplication implements ActionListener, PhysicsCollisionListener {
private static final String TITLE = "Rolling The Monkey";
private static final String MESSAGE = "Thanks for Playing!";
private static final String INFO_MESSAGE = "Collect all the spinning cubes!\nPress the 'R' key any time to reset!";
private static final float PLAYER_DENSITY = 1200; // OLK(Java LOL) = 1200, STEEL = 8000, RUBBER = 1000
private static final float PLAYER_REST = 0.1f; // OLK = 0.1f, STEEL = 0.0f, RUBBER = 1.0f I made these up.
private static final float PLAYER_RADIUS = 2.0f;
private static final float PLAYER_ACCEL = 1.0f;
private static final float PICKUP_SIZE = 0.5f;
private static final float PICKUP_RADIUS = 15.0f;
private static final int PICKUP_COUNT = 16;
private static final float PICKUP_SPEED = 5.0f;
private static final float PLAYER_VOLUME = (FastMath.pow(PLAYER_RADIUS, 3) * FastMath.PI) / 3; // V = 4/3 * PI * R pow 3
private static final float PLAYER_MASS = PLAYER_DENSITY * PLAYER_VOLUME;
private static final float PLAYER_FORCE = 80000 * PLAYER_ACCEL; // F = M(4m diameter steel ball) * A
private static final Vector3f PLAYER_START = new Vector3f(0.0f, PLAYER_RADIUS * 2, 0.0f);
private static final String INPUT_MAPPING_FORWARD = "INPUT_MAPPING_FORWARD";
private static final String INPUT_MAPPING_BACKWARD = "INPUT_MAPPING_BACKWARD";
private static final String INPUT_MAPPING_LEFT = "INPUT_MAPPING_LEFT";
private static final String INPUT_MAPPING_RIGHT = "INPUT_MAPPING_RIGHT";
private static final String INPUT_MAPPING_RESET = "INPUT_MAPPING_RESET";
public static void main(String[] args) {
RollingTheMonkey app = new RollingTheMonkey();
app.start();
}
private boolean keyForward;
private boolean keyBackward;
private boolean keyLeft;
private boolean keyRight;
private PhysicsSpace space;
private RigidBodyControl player;
private int score;
private Node pickUps;
BitmapText infoText;
BitmapText scoreText;
BitmapText messageText;
@Override
public void simpleInitApp() {
flyCam.setEnabled(false);
cam.setLocation(new Vector3f(0.0f, 12.0f, 21.0f));
viewPort.setBackgroundColor(new ColorRGBA(0.2118f, 0.0824f, 0.6549f, 1.0f));
// init physics
BulletAppState bulletState = new BulletAppState();
stateManager.attach(bulletState);
space = bulletState.getPhysicsSpace();
space.addCollisionListener(this);
// create light
DirectionalLight sun = new DirectionalLight();
sun.setDirection((new Vector3f(-0.7f, -0.3f, -0.5f)).normalizeLocal());
System.out.println("Here We Go: " + sun.getDirection());
sun.setColor(ColorRGBA.White);
rootNode.addLight(sun);
// create materials
Material materialRed = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md");
materialRed.setBoolean("UseMaterialColors",true);
materialRed.setBoolean("HardwareShadows", true);
materialRed.setColor("Diffuse", new ColorRGBA(0.9451f, 0.0078f, 0.0314f, 1.0f));
materialRed.setColor("Specular", ColorRGBA.White);
materialRed.setFloat("Shininess", 64.0f);
Material materialGreen = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md");
materialGreen.setBoolean("UseMaterialColors",true);
materialGreen.setBoolean("HardwareShadows", true);
materialGreen.setColor("Diffuse", new ColorRGBA(0.0431f, 0.7725f, 0.0078f, 1.0f));
materialGreen.setColor("Specular", ColorRGBA.White);
materialGreen.setFloat("Shininess", 64.0f);
Material logoMaterial = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md");
logoMaterial.setBoolean("UseMaterialColors",true);
logoMaterial.setBoolean("HardwareShadows", true);
logoMaterial.setTexture("DiffuseMap", assetManager.loadTexture("com/jme3/app/Monkey.png"));
logoMaterial.setColor("Diffuse", ColorRGBA.White);
logoMaterial.setColor("Specular", ColorRGBA.White);
logoMaterial.setFloat("Shininess", 32.0f);
Material materialYellow = new Material(assetManager, "Common/MatDefs/Light/Lighting.j3md");
materialYellow.setBoolean("UseMaterialColors",true);
materialYellow.setBoolean("HardwareShadows", true);
materialYellow.setColor("Diffuse", new ColorRGBA(0.9529f, 0.7843f, 0.0078f, 1.0f));
materialYellow.setColor("Specular", ColorRGBA.White);
materialYellow.setFloat("Shininess", 64.0f);
// create level spatial
// TODO: create your own level mesh
Node level = new Node("level");
level.setShadowMode(ShadowMode.CastAndReceive);
Geometry floor = new Geometry("floor", new Box(22.0f, 0.5f, 22.0f));
floor.setShadowMode(ShadowMode.Receive);
floor.setLocalTranslation(0.0f, -0.5f, 0.0f);
floor.setMaterial(materialGreen);
Geometry wallNorth = new Geometry("wallNorth", new Box(22.0f, 2.0f, 0.5f));
wallNorth.setLocalTranslation(0.0f, 2.0f, 21.5f);
wallNorth.setMaterial(materialRed);
Geometry wallSouth = new Geometry("wallSouth", new Box(22.0f, 2.0f, 0.5f));
wallSouth.setLocalTranslation(0.0f, 2.0f, -21.5f);
wallSouth.setMaterial(materialRed);
Geometry wallEast = new Geometry("wallEast", new Box(0.5f, 2.0f, 21.0f));
wallEast.setLocalTranslation(-21.5f, 2.0f, 0.0f);
wallEast.setMaterial(materialRed);
Geometry wallWest = new Geometry("wallWest", new Box(0.5f, 2.0f, 21.0f));
wallWest.setLocalTranslation(21.5f, 2.0f, 0.0f);
wallWest.setMaterial(materialRed);
level.attachChild(floor);
level.attachChild(wallNorth);
level.attachChild(wallSouth);
level.attachChild(wallEast);
level.attachChild(wallWest);
// The easy way: level.addControl(new RigidBodyControl(0));
// create level Shape
CompoundCollisionShape levelShape = new CompoundCollisionShape();
BoxCollisionShape floorShape = new BoxCollisionShape(new Vector3f(22.0f, 0.5f, 22.0f));
BoxCollisionShape wallNorthShape = new BoxCollisionShape(new Vector3f(22.0f, 2.0f, 0.5f));
BoxCollisionShape wallSouthShape = new BoxCollisionShape(new Vector3f(22.0f, 2.0f, 0.5f));
BoxCollisionShape wallEastShape = new BoxCollisionShape(new Vector3f(0.5f, 2.0f, 21.0f));
BoxCollisionShape wallWestShape = new BoxCollisionShape(new Vector3f(0.5f, 2.0f, 21.0f));
levelShape.addChildShape(floorShape, new Vector3f(0.0f, -0.5f, 0.0f));
levelShape.addChildShape(wallNorthShape, new Vector3f(0.0f, 2.0f, -21.5f));
levelShape.addChildShape(wallSouthShape, new Vector3f(0.0f, 2.0f, 21.5f));
levelShape.addChildShape(wallEastShape, new Vector3f(-21.5f, 2.0f, 0.0f));
levelShape.addChildShape(wallEastShape, new Vector3f(21.5f, 2.0f, 0.0f));
level.addControl(new RigidBodyControl(levelShape, 0));
rootNode.attachChild(level);
space.addAll(level);
// create Pickups
// TODO: create your own pickUp mesh
// create single mesh for all pickups
// HINT: think particles.
pickUps = new Node("pickups");
Quaternion rotation = new Quaternion();
Vector3f translation = new Vector3f(0.0f, PICKUP_SIZE * 1.5f, -PICKUP_RADIUS);
int index = 0;
float ammount = FastMath.TWO_PI / PICKUP_COUNT;
for(float angle = 0; angle < FastMath.TWO_PI; angle += ammount) {
Geometry pickUp = new Geometry("pickUp" + (index++), new Box(PICKUP_SIZE,PICKUP_SIZE, PICKUP_SIZE));
pickUp.setShadowMode(ShadowMode.CastAndReceive);
pickUp.setMaterial(materialYellow);
pickUp.setLocalRotation(rotation.fromAngles(
FastMath.rand.nextFloat() * FastMath.TWO_PI,
FastMath.rand.nextFloat() * FastMath.TWO_PI,
FastMath.rand.nextFloat() * FastMath.TWO_PI));
rotation.fromAngles(0.0f, angle, 0.0f);
rotation.mult(translation, pickUp.getLocalTranslation());
pickUps.attachChild(pickUp);
pickUp.addControl(new GhostControl(new SphereCollisionShape(PICKUP_SIZE)));
space.addAll(pickUp);
//space.addCollisionListener(pickUpControl);
}
rootNode.attachChild(pickUps);
// Create player
// TODO: create your own player mesh
Geometry playerGeometry = new Geometry("player", new Sphere(16, 32, PLAYER_RADIUS));
playerGeometry.setShadowMode(ShadowMode.CastAndReceive);
playerGeometry.setLocalTranslation(PLAYER_START.clone());
playerGeometry.setMaterial(logoMaterial);
// Store control for applying forces
// TODO: create your own player control
player = new RigidBodyControl(new SphereCollisionShape(PLAYER_RADIUS), PLAYER_MASS);
player.setRestitution(PLAYER_REST);
playerGeometry.addControl(player);
rootNode.attachChild(playerGeometry);
space.addAll(playerGeometry);
inputManager.addMapping(INPUT_MAPPING_FORWARD, new KeyTrigger(KeyInput.KEY_UP)
, new KeyTrigger(KeyInput.KEY_W));
inputManager.addMapping(INPUT_MAPPING_BACKWARD, new KeyTrigger(KeyInput.KEY_DOWN)
, new KeyTrigger(KeyInput.KEY_S));
inputManager.addMapping(INPUT_MAPPING_LEFT, new KeyTrigger(KeyInput.KEY_LEFT)
, new KeyTrigger(KeyInput.KEY_A));
inputManager.addMapping(INPUT_MAPPING_RIGHT, new KeyTrigger(KeyInput.KEY_RIGHT)
, new KeyTrigger(KeyInput.KEY_D));
inputManager.addMapping(INPUT_MAPPING_RESET, new KeyTrigger(KeyInput.KEY_R));
inputManager.addListener(this, INPUT_MAPPING_FORWARD, INPUT_MAPPING_BACKWARD
, INPUT_MAPPING_LEFT, INPUT_MAPPING_RIGHT, INPUT_MAPPING_RESET);
// init UI
infoText = new BitmapText(guiFont, false);
infoText.setText(INFO_MESSAGE);
guiNode.attachChild(infoText);
scoreText = new BitmapText(guiFont, false);
scoreText.setText("Score: 0");
guiNode.attachChild(scoreText);
messageText = new BitmapText(guiFont, false);
messageText.setText(MESSAGE);
messageText.setLocalScale(0.0f);
guiNode.attachChild(messageText);
infoText.setLocalTranslation(0.0f, cam.getHeight(), 0.0f);
scoreText.setLocalTranslation((cam.getWidth() - scoreText.getLineWidth()) / 2.0f,
scoreText.getLineHeight(), 0.0f);
messageText.setLocalTranslation((cam.getWidth() - messageText.getLineWidth()) / 2.0f,
(cam.getHeight() - messageText.getLineHeight()) / 2, 0.0f);
// init shadows
FilterPostProcessor processor = new FilterPostProcessor(assetManager);
DirectionalLightShadowFilter filter = new DirectionalLightShadowFilter(assetManager, 2048, 1);
filter.setLight(sun);
processor.addFilter(filter);
viewPort.addProcessor(processor);
}
@Override
public void simpleUpdate(float tpf) {
// Update and position the score
scoreText.setText("Score: " + score);
scoreText.setLocalTranslation((cam.getWidth() - scoreText.getLineWidth()) / 2.0f,
scoreText.getLineHeight(), 0.0f);
// Rotate all the pickups
float pickUpSpeed = PICKUP_SPEED * tpf;
for(Spatial pickUp : pickUps.getChildren()) {
pickUp.rotate(pickUpSpeed, pickUpSpeed, pickUpSpeed);
}
Vector3f centralForce = new Vector3f();
if(keyForward) centralForce.addLocal(cam.getDirection());
if(keyBackward) centralForce.addLocal(cam.getDirection().negate());
if(keyLeft) centralForce.addLocal(cam.getLeft());
if(keyRight) centralForce.addLocal(cam.getLeft().negate());
if(!Vector3f.ZERO.equals(centralForce)) {
centralForce.setY(0); // stop ball from pusing down or flying up
centralForce.normalizeLocal(); // normalize force
centralForce.multLocal(PLAYER_FORCE); // scale vector to force
player.applyCentralForce(centralForce); // apply force to player
}
cam.lookAt(player.getPhysicsLocation(), Vector3f.UNIT_Y);
}
@Override
public void onAction(String name, boolean isPressed, float tpf) {
switch(name) {
case INPUT_MAPPING_FORWARD:
keyForward = isPressed;
break;
case INPUT_MAPPING_BACKWARD:
keyBackward = isPressed;
break;
case INPUT_MAPPING_LEFT:
keyLeft = isPressed;
break;
case INPUT_MAPPING_RIGHT:
keyRight = isPressed;
break;
case INPUT_MAPPING_RESET:
enqueue(new Callable() {
@Override
public Void call() {
reset();
return null;
}
});
break;
}
}
@Override
public void collision(PhysicsCollisionEvent event) {
Spatial nodeA = event.getNodeA();
Spatial nodeB = event.getNodeB();
String nameA = nodeA == null ? "" : nodeA.getName();
String nameB = nodeB == null ? "" : nodeB.getName();
if(nameA.equals("player") && nameB.startsWith("pickUp")) {
GhostControl pickUpControl = nodeB.getControl(GhostControl.class);
if(pickUpControl != null && pickUpControl.isEnabled()) {
pickUpControl.setEnabled(false);
nodeB.removeFromParent();
nodeB.setLocalScale(0.0f);
score += 1;
if(score >= PICKUP_COUNT) {
messageText.setLocalScale(1.0f);
}
}
} else if(nameA.startsWith("pickUp") && nameB.equals("player")) {
GhostControl pickUpControl = nodeA.getControl(GhostControl.class);
if(pickUpControl != null && pickUpControl.isEnabled()) {
pickUpControl.setEnabled(false);
nodeA.setLocalScale(0.0f);
score += 1;
if(score >= PICKUP_COUNT) {
messageText.setLocalScale(1.0f);
}
}
}
}
private void reset() {
// Reset the pickups
for(Spatial pickUp : pickUps.getChildren()) {
GhostControl pickUpControl = pickUp.getControl(GhostControl.class);
if(pickUpControl != null) {
pickUpControl.setEnabled(true);
}
pickUp.setLocalScale(1.0f);
}
// Reset the player
player.setPhysicsLocation(PLAYER_START.clone());
player.setAngularVelocity(Vector3f.ZERO.clone());
player.setLinearVelocity(Vector3f.ZERO.clone());
// Reset the score
score = 0;
// Reset the message
messageText.setLocalScale(0.0f);
}
}
It's been fun...LOL
Comments
Post a Comment