本文介绍了一种方式墙壁andengine的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我们如何创建andengine即单向墙壁时从顶部的身体秋天底在墙上，身体应与墙壁碰撞，当从底部去到顶部，它忽略了碰撞，让身体穿过壁？
我学下面的教程并试图在Android中，但没有努力实现这一点。以下是我迄今所做的：
公共类JumpingBallActivity扩展SimpleBaseGameActivity实现IOnSceneTouchListener，IAccelerationListener，ContactListener { 私人INT CAMERA_WIDTH = 480;
私人INT CAMERA_HEIGHT = 800;
私人BitmapTextureAtlas mBitmapTextureAtlas;
私人ITextureRegion smileyRegion;
私人场景MSCENE;
私人相机拍照;
私人雪碧smileySprite;
私营机构smileyBody;
私人PhysicsWorld mPhysicsWorld;
私营机构slabWallBody;
私人FixtureDef FIXTURE_DEF = PhysicsFactory.createFixtureDef（0.6f，0.0，0.0）;
最后FixtureDef wallFixtureDef = PhysicsFactory.createFixtureDef（1，0.0，0.0）;
@覆盖
公共EngineOptions onCreateEngineOptions（）{
// TODO自动生成方法存根 相机=新照相机（0，0，CAMERA_WIDTH，CAMERA_HEIGHT）; 返回新EngineOptions（真，ScreenOrientation.PORTRAIT_FIXED，新RatioResolutionPolicy（CAMERA_WIDTH，CAMERA_HEIGHT），摄像头）;
} @覆盖
保护无效onCreateResources（）{
// TODO自动生成方法存根
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath（GFX /）; mBitmapTextureAtlas =新BitmapTextureAtlas（this.getTextureManager（），84，84，TextureOptions.BILINEAR）;
smileyRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset（mBitmapTextureAtlas，getAssets（），smiley.png，0，0）;
mBitmapTextureAtlas.load（）;
enableAccelerationSensor（本）; } @覆盖
保护场景onCreateScene（）{
// TODO自动生成方法存根
this.mScene =新场景（）;
this.mScene.setBackground（新背景（0，0，0））;
this.mScene.setOnSceneTouchListener（本）;
this.mPhysicsWorld =新PhysicsWorld（新Vector2（0，15），FALSE）;
最终VertexBufferObjectManager vertexBufferObjectManager = this.getVertexBufferObjectManager（）;
矩形Rect1的=新矩形（（CAMERA_WIDTH / 2） - 100，（CAMERA_HEIGHT / 2）+ 50，200，10，vertexBufferObjectManager）;
slabWallBody = PhysicsFactory.createBoxBody（this.mPhysicsWorld，Rect1的，BodyType.StaticBody，wallFixtureDef）;
slabWallBody.setUserData（板）;
mPhysicsWorld.registerPhysicsConnector（新PhysicsConnector（Rect1的，slabWallBody，假的，假的））;
smileySprite =新的雪碧（smileyRegion.getWidth（），smileyRegion.getHeight（），smileyRegion，vertexBufferObjectManager）;
smileyBody = PhysicsFactory.createCircleBody（mPhysicsWorld，smileySprite，BodyType.DynamicBody，FIXTURE_DEF）;
smileyBody.setUserData（笑脸）;
mPhysicsWorld.registerPhysicsConnector（新PhysicsConnector（smileySprite，smileyBody，真，假））;
最终的矩形地面=新的Rectangle（0，CAMERA_HEIGHT - 2，CAMERA_WIDTH，2，vertexBufferObjectManager）;
最终矩形屋顶=新的Rectangle（0，0，CAMERA_WIDTH，2，vertexBufferObjectManager）;
最后矩形左=新的Rectangle（0，0，2，CAMERA_HEIGHT，vertexBufferObjectManager）;
最后矩形右=新的Rectangle（CAMERA_WIDTH - 2，0，2，CAMERA_HEIGHT，vertexBufferObjectManager）; PhysicsFactory.createBoxBody（this.mPhysicsWorld，地面，BodyType.StaticBody，wallFixtureDef）.setUserData（墙）;
PhysicsFactory.createBoxBody（this.mPhysicsWorld，屋顶，BodyType.StaticBody，wallFixtureDef）.setUserData（墙）;
PhysicsFactory.createBoxBody（this.mPhysicsWorld，左，BodyType.StaticBody，wallFixtureDef）.setUserData（墙）;
PhysicsFactory.createBoxBody（this.mPhysicsWorld，右，BodyType.StaticBody，wallFixtureDef）.setUserData（墙）; mScene.attachChild（smileySprite）;
mScene.attachChild（Rect1的）;
mScene.attachChild（右）;
mScene.attachChild（左）;
mScene.attachChild（屋顶）;
mScene.attachChild（地）; this.mScene.registerUpdateHandler（this.mPhysicsWorld）;
mPhysicsWorld.setContactListener（本）;
mScene.setOnSceneTouchListener（本）;
返回MSCENE;
} @覆盖
公共布尔onSceneTouchEvent（场景pScene，的TouchEvent pSceneTouchEvent）{
// TODO自动生成方法存根
smileyBody.setLinearVelocity（0，-15）;
返回false;
} @覆盖
公共无效onAccelerationAccuracyChanged（AccelerationData pAccelerationData）{
// TODO自动生成方法存根 } @覆盖
公共无效onAccelerationChanged（AccelerationData pAccelerationData）{
// TODO自动生成方法存根
最终Vector2比重= Vector2Pool.obtain（0，15）;
this.mPhysicsWorld.setGravity（重力）; Vector2Pool.recycle（重力）; smileyBody.setLinearVelocity（pAccelerationData.getX（）* 2，smileyBody.getLinearVelocity（）Y。）;
} @覆盖
公共无效beginContact（联系方式联系我们）{
// TODO自动生成方法存根
// Log.d（开始接触，开始接触）;
// Log.d（开始接触，smileyBody.getLinearVelocity（）的toString（）+）; 夹具fixtureA = contact.getFixtureA（）;
夹具fixtureB = contact.getFixtureB（）; 夹具platFormFixture = NULL;
夹具ballFixture = NULL;
//也弄不明白什么怎么回事在code挺身而出
如果（fixtureA.getBody（）getUserData（）等于（板）及。＆放大器; fixtureB.getBody（）getUserData（）等于（笑脸））{
platFormFixture = fixtureA;
ballFixture = fixtureB; } 如果（fixtureA.getBody（）getUserData（）等于（笑脸）及。＆放大器; fixtureB.getBody（）getUserData（）等于（板）。。）{
platFormFixture = fixtureB;
ballFixture = fixtureA;
}
如果（platFormFixture == NULL）{
返回;
} 体platFormBody = platFormFixture.getBody（）;
体ballBody = ballFixture.getBody（）; INT为NumPoints = contact.getWorldManifold（）getNumberOfContactPoints（）。
WorldManifold worldManiFold = contact.getWorldManifold（）; 的for（int i = 0; I＆LT;为NumPoints;我++）{
Vector2 vector2 = ballBody.getLinearVelocityFromWorldPoint（worldManiFold.getPoints（）[我]）;
Vector2的Vector3 = platFormBody.getLinearVelocityFromWorldPoint（worldManiFold.getPoints（）[我]）;
Vector2的Vector4 = platFormBody.getLocalVector（vector2.sub（的Vector3））;
如果（vector4.y＆LT; -1）{
// Log.d（碰撞忽略，碰撞忽略）;
返回;
}
否则如果（vector4.y＆所述; 1）{
Vector2 localPoint = platFormBody.getLocalPoint（worldManiFold.getPoints（）[我]）;
Log.d（局部Y，localPoint.y +）;
浮动F = 1.1F;
如果（localPoint.y＆GT;的F - 0.05f）{
返回;
}
}
} contact.setEnabled（假）; } @覆盖
公共无效endContact（联系方式联系我们）{
// TODO自动生成方法存根
contact.setEnabled（真）;
// Log.d（端部接触，端部接触）;
// Log.d（端部接触，smileyBody.getLinearVelocity（）的toString（））;
} Vector2伏; @覆盖
公共无效preSOLVE（联系方式联系我们，集成块oldManifold）{
// TODO自动生成方法存根
// Log.d（preSOLVE，preSOLVE）;
// Log.d（preSOLVE，smileyBody.getLinearVelocity（）的toString（））; } @覆盖
公共无效postSolve（联系方式联系我们，ContactImpulse冲动）{
// TODO自动生成方法存根
// Log.d（postsolve，postsolve）;
// Log.d（postsolve，smileyBody.getLinearVelocity（）的toString（））;
}}
解决方案
我已经实现所需的功能和这里给出的解决方案，code。我不知道它是如何工作的，但现在它的工作。
公共类JumpingBallActivity扩展SimpleBaseGameActivity实现IOnSceneTouchListener，IAccelerationListener，ContactListener { 私人INT CAMERA_WIDTH = 480;
私人INT CAMERA_HEIGHT = 800;
私人BitmapTextureAtlas mBitmapTextureAtlas;
私人ITextureRegion smileyRegion;
私人场景MSCENE;
私人相机拍照;
私人雪碧smileySprite;
私营机构smileyBody;
私人PhysicsWorld mPhysicsWorld;
私营机构slabWallBody;
私人FixtureDef FIXTURE_DEF = PhysicsFactory.createFixtureDef（0.6f，0.0，0.0）;
最后FixtureDef wallFixtureDef = PhysicsFactory.createFixtureDef（1，0.0，0.0）;
@覆盖
公共EngineOptions onCreateEngineOptions（）{
// TODO自动生成方法存根 相机=新照相机（0，0，CAMERA_WIDTH，CAMERA_HEIGHT）; 返回新EngineOptions（真，ScreenOrientation.PORTRAIT_FIXED，新RatioResolutionPolicy（CAMERA_WIDTH，CAMERA_HEIGHT），摄像头）;
} @覆盖
保护无效onCreateResources（）{
// TODO自动生成方法存根
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath（GFX /）; mBitmapTextureAtlas =新BitmapTextureAtlas（this.getTextureManager（），84，84，TextureOptions.BILINEAR）;
smileyRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset（mBitmapTextureAtlas，getAssets（），smiley.png，0，0）;
mBitmapTextureAtlas.load（）;
enableAccelerationSensor（本）; } @覆盖
保护场景onCreateScene（）{
// TODO自动生成方法存根
this.mScene =新场景（）;
this.mScene.setBackground（新背景（0，0，0））;
this.mScene.setOnSceneTouchListener（本）;
this.mPhysicsWorld =新PhysicsWorld（新Vector2（0，15），FALSE）;
最终VertexBufferObjectManager vertexBufferObjectManager = this.getVertexBufferObjectManager（）;
矩形Rect1的=新矩形（（CAMERA_WIDTH / 2） - 100，（CAMERA_HEIGHT / 2）+ 50，200，10，vertexBufferObjectManager）;
slabWallBody = PhysicsFactory.createBoxBody（this.mPhysicsWorld，Rect1的，BodyType.StaticBody，wallFixtureDef）;
slabWallBody.setUserData（板）;
mPhysicsWorld.registerPhysicsConnector（新PhysicsConnector（Rect1的，slabWallBody，假的，假的））;
smileySprite =新的雪碧（smileyRegion.getWidth（），smileyRegion.getHeight（），smileyRegion，vertexBufferObjectManager）;
smileyBody = PhysicsFactory.createCircleBody（mPhysicsWorld，smileySprite，BodyType.DynamicBody，FIXTURE_DEF）;
smileyBody.setUserData（笑脸）;
mPhysicsWorld.registerPhysicsConnector（新PhysicsConnector（smileySprite，smileyBody，真，假））;
最终的矩形地面=新的Rectangle（0，CAMERA_HEIGHT - 2，CAMERA_WIDTH，2，vertexBufferObjectManager）;
最终矩形屋顶=新的Rectangle（0，0，CAMERA_WIDTH，2，vertexBufferObjectManager）;
最后矩形左=新的Rectangle（0，0，2，CAMERA_HEIGHT，vertexBufferObjectManager）;
最后矩形右=新的Rectangle（CAMERA_WIDTH - 2，0，2，CAMERA_HEIGHT，vertexBufferObjectManager）; PhysicsFactory.createBoxBody（this.mPhysicsWorld，地面，BodyType.StaticBody，wallFixtureDef）.setUserData（墙）;
PhysicsFactory.createBoxBody（this.mPhysicsWorld，屋顶，BodyType.StaticBody，wallFixtureDef）.setUserData（墙）;
PhysicsFactory.createBoxBody（this.mPhysicsWorld，左，BodyType.StaticBody，wallFixtureDef）.setUserData（墙）;
PhysicsFactory.createBoxBody（this.mPhysicsWorld，右，BodyType.StaticBody，wallFixtureDef）.setUserData（墙）; mScene.attachChild（smileySprite）;
mScene.attachChild（Rect1的）;
mScene.attachChild（右）;
mScene.attachChild（左）;
mScene.attachChild（屋顶）;
mScene.attachChild（地）; this.mScene.registerUpdateHandler（this.mPhysicsWorld）;
mPhysicsWorld.setContactListener（本）;
mScene.setOnSceneTouchListener（本）;
返回MSCENE;
} @覆盖
公共布尔onSceneTouchEvent（场景pScene，的TouchEvent pSceneTouchEvent）{
// TODO自动生成方法存根
smileyBody.setLinearVelocity（0，-15）;
返回false;
} @覆盖
公共无效onAccelerationAccuracyChanged（AccelerationData pAccelerationData）{
// TODO自动生成方法存根 } @覆盖
公共无效onAccelerationChanged（AccelerationData pAccelerationData）{
// TODO自动生成方法存根
最终Vector2比重= Vector2Pool.obtain（0，15）;
this.mPhysicsWorld.setGravity（重力）; Vector2Pool.recycle（重力）; smileyBody.setLinearVelocity（pAccelerationData.getX（）* 2，smileyBody.getLinearVelocity（）Y。）;
} @覆盖
公共无效beginContact（联系方式联系我们）{
// TODO自动生成方法存根
// Log.d（开始接触，开始接触）;
// Log.d（开始接触，smileyBody.getLinearVelocity（）的toString（）+）; } @覆盖
公共无效endContact（联系方式联系我们）{
// TODO自动生成方法存根
contact.setEnabled（真）;
// Log.d（端部接触，端部接触）;
// Log.d（端部接触，smileyBody.getLinearVelocity（）的toString（））;
} Vector2伏; @覆盖
公共无效preSOLVE（联系方式联系我们，集成块oldManifold）{
// TODO自动生成方法存根
// Log.d（preSOLVE，preSOLVE）;
// Log.d（preSOLVE，smileyBody.getLinearVelocity（）的toString（））;
夹具fixtureA = contact.getFixtureA（）;
夹具fixtureB = contact.getFixtureB（）; 夹具platFormFixture = NULL;
夹具ballFixture = NULL; 如果（fixtureA.getBody（）getUserData（）等于（板）及。＆放大器; fixtureB.getBody（）getUserData（）等于（笑脸））{
platFormFixture = fixtureA;
ballFixture = fixtureB; } 如果（fixtureA.getBody（）getUserData（）等于（笑脸）及。＆放大器; fixtureB.getBody（）getUserData（）等于（板）。。）{
platFormFixture = fixtureB;
ballFixture = fixtureA;
}
如果（platFormFixture == NULL）{
返回;
} 体platFormBody = platFormFixture.getBody（）;
体ballBody = ballFixture.getBody（）; WorldManifold worldManiFold = contact.getWorldManifold（）;
INT为NumPoints = contact.getWorldManifold（）getNumberOfContactPoints（）。
的for（int i = 0; I＆LT;为NumPoints;我++）{
Vector2 vector2 = ballBody.getLinearVelocityFromWorldPoint（worldManiFold.getPoints（）[我]）;
如果（vector2.y℃，）{
contact.setEnabled（假）;
}
}// WorldManifold worldManiFold = contact.getWorldManifold（）;
// Vector2正常= worldManiFold.getNormal（）;
//
//如果（normal.y！= -1）{
// contact.setEnabled（假）;
//}
} @覆盖
公共无效postSolve（联系方式联系我们，ContactImpulse冲动）{
// TODO自动生成方法存根
// Log.d（postsolve，postsolve）;
// Log.d（postsolve，smileyBody.getLinearVelocity（）的toString（））;
}}
How can we create one way walls in andengine i.e when a body fall from top to bottom on a wall, the body should collide with wall and when from going from bottom to top, it ignores the collision and allow body to pass through wall?I studied following tutorial http://www.iforce2d.net/b2dtut/one-way-walls and tried to implement this in android but not working. Here is what I have done so far:
public class JumpingBallActivity extends SimpleBaseGameActivity implements IOnSceneTouchListener, IAccelerationListener, ContactListener {
private int CAMERA_WIDTH = 480;
private int CAMERA_HEIGHT = 800;
private BitmapTextureAtlas mBitmapTextureAtlas;
private ITextureRegion smileyRegion;
private Scene mScene;
private Camera camera;
private Sprite smileySprite;
private Body smileyBody;
private PhysicsWorld mPhysicsWorld;
private Body slabWallBody;
private FixtureDef FIXTURE_DEF = PhysicsFactory.createFixtureDef(0.6f, 0.0f, 0.0f);
final FixtureDef wallFixtureDef = PhysicsFactory.createFixtureDef(1, 0.0f, 0.0f);
@Override
public EngineOptions onCreateEngineOptions() {
// TODO Auto-generated method stub
camera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
return new EngineOptions(true, ScreenOrientation.PORTRAIT_FIXED, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), camera);
}
@Override
protected void onCreateResources() {
// TODO Auto-generated method stub
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
mBitmapTextureAtlas = new BitmapTextureAtlas(this.getTextureManager(), 84, 84, TextureOptions.BILINEAR);
smileyRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset(mBitmapTextureAtlas, getAssets(), "smiley.png", 0, 0);
mBitmapTextureAtlas.load();
enableAccelerationSensor(this);
}
@Override
protected Scene onCreateScene() {
// TODO Auto-generated method stub
this.mScene = new Scene();
this.mScene.setBackground(new Background(0, 0, 0));
this.mScene.setOnSceneTouchListener(this);
this.mPhysicsWorld = new PhysicsWorld(new Vector2(0, 15), false);
final VertexBufferObjectManager vertexBufferObjectManager = this.getVertexBufferObjectManager();
Rectangle rect1 = new Rectangle((CAMERA_WIDTH/2) - 100, (CAMERA_HEIGHT/2) + 50, 200, 10, vertexBufferObjectManager);
slabWallBody = PhysicsFactory.createBoxBody(this.mPhysicsWorld, rect1, BodyType.StaticBody, wallFixtureDef);
slabWallBody.setUserData("slab");
mPhysicsWorld.registerPhysicsConnector(new PhysicsConnector(rect1, slabWallBody, false, false));
smileySprite = new Sprite(smileyRegion.getWidth(), smileyRegion.getHeight(), smileyRegion, vertexBufferObjectManager);
smileyBody = PhysicsFactory.createCircleBody(mPhysicsWorld, smileySprite, BodyType.DynamicBody, FIXTURE_DEF);
smileyBody.setUserData("smiley");
mPhysicsWorld.registerPhysicsConnector(new PhysicsConnector(smileySprite, smileyBody, true, false));
final Rectangle ground = new Rectangle(0, CAMERA_HEIGHT - 2, CAMERA_WIDTH, 2, vertexBufferObjectManager);
final Rectangle roof = new Rectangle(0, 0, CAMERA_WIDTH, 2, vertexBufferObjectManager);
final Rectangle left = new Rectangle(0, 0, 2, CAMERA_HEIGHT, vertexBufferObjectManager);
final Rectangle right = new Rectangle(CAMERA_WIDTH - 2, 0, 2, CAMERA_HEIGHT, vertexBufferObjectManager);
PhysicsFactory.createBoxBody(this.mPhysicsWorld, ground, BodyType.StaticBody, wallFixtureDef).setUserData("wall");
PhysicsFactory.createBoxBody(this.mPhysicsWorld, roof, BodyType.StaticBody, wallFixtureDef).setUserData("wall");
PhysicsFactory.createBoxBody(this.mPhysicsWorld, left, BodyType.StaticBody, wallFixtureDef).setUserData("wall");
PhysicsFactory.createBoxBody(this.mPhysicsWorld, right, BodyType.StaticBody, wallFixtureDef).setUserData("wall");
mScene.attachChild(smileySprite);
mScene.attachChild(rect1);
mScene.attachChild(right);
mScene.attachChild(left);
mScene.attachChild(roof);
mScene.attachChild(ground);
this.mScene.registerUpdateHandler(this.mPhysicsWorld);
mPhysicsWorld.setContactListener(this);
mScene.setOnSceneTouchListener(this);
return mScene;
}
@Override
public boolean onSceneTouchEvent(Scene pScene, TouchEvent pSceneTouchEvent) {
// TODO Auto-generated method stub
smileyBody.setLinearVelocity(0, -15);
return false;
}
@Override
public void onAccelerationAccuracyChanged(AccelerationData pAccelerationData) {
// TODO Auto-generated method stub
}
@Override
public void onAccelerationChanged(AccelerationData pAccelerationData) {
// TODO Auto-generated method stub
final Vector2 gravity = Vector2Pool.obtain(0, 15);
this.mPhysicsWorld.setGravity(gravity);
Vector2Pool.recycle(gravity);
smileyBody.setLinearVelocity(pAccelerationData.getX() * 2, smileyBody.getLinearVelocity().y);
}
@Override
public void beginContact(Contact contact) {
// TODO Auto-generated method stub
// Log.d("begin contact", "begin contact");
// Log.d("begin contact", smileyBody.getLinearVelocity().toString() + "");
Fixture fixtureA = contact.getFixtureA();
Fixture fixtureB = contact.getFixtureB();
Fixture platFormFixture = null;
Fixture ballFixture = null;
// also could not understand whats going on here in the code coming forward
if(fixtureA.getBody().getUserData().equals("slab") && fixtureB.getBody().getUserData().equals("smiley")) {
platFormFixture = fixtureA;
ballFixture = fixtureB;
}
if(fixtureA.getBody().getUserData().equals("smiley") && fixtureB.getBody().getUserData().equals("slab")) {
platFormFixture = fixtureB;
ballFixture = fixtureA;
}
if(platFormFixture == null) {
return;
}
Body platFormBody = platFormFixture.getBody();
Body ballBody = ballFixture.getBody();
int numPoints = contact.getWorldManifold().getNumberOfContactPoints();
WorldManifold worldManiFold = contact.getWorldManifold();
for(int i = 0; i < numPoints; i++) {
Vector2 vector2 = ballBody.getLinearVelocityFromWorldPoint(worldManiFold.getPoints()[i]);
Vector2 vector3 = platFormBody.getLinearVelocityFromWorldPoint(worldManiFold.getPoints()[i]);
Vector2 vector4 = platFormBody.getLocalVector(vector2.sub(vector3));
if(vector4.y < -1) {
// Log.d("collision ignored", "collision ignored");
return;
}
else if(vector4.y < 1) {
Vector2 localPoint = platFormBody.getLocalPoint(worldManiFold.getPoints()[i]);
Log.d("local y", localPoint.y + "");
float f = 1.1f;
if(localPoint.y > f - 0.05f) {
return;
}
}
}
contact.setEnabled(false);
}
@Override
public void endContact(Contact contact) {
// TODO Auto-generated method stub
contact.setEnabled(true);
// Log.d("end contact", "end contact");
// Log.d("end contact", smileyBody.getLinearVelocity().toString());
}
Vector2 v;
@Override
public void preSolve(Contact contact, Manifold oldManifold) {
// TODO Auto-generated method stub
// Log.d("presolve", "presolve");
// Log.d("presolve", smileyBody.getLinearVelocity().toString());
}
@Override
public void postSolve(Contact contact, ContactImpulse impulse) {
// TODO Auto-generated method stub
// Log.d("postsolve", "postsolve");
// Log.d("postsolve", smileyBody.getLinearVelocity().toString());
}
}
解决方案
I have achieved the desired functionality and given the solution code here. I don't know how does it work but its working now.
public class JumpingBallActivity extends SimpleBaseGameActivity implements IOnSceneTouchListener, IAccelerationListener, ContactListener {
private int CAMERA_WIDTH = 480;
private int CAMERA_HEIGHT = 800;
private BitmapTextureAtlas mBitmapTextureAtlas;
private ITextureRegion smileyRegion;
private Scene mScene;
private Camera camera;
private Sprite smileySprite;
private Body smileyBody;
private PhysicsWorld mPhysicsWorld;
private Body slabWallBody;
private FixtureDef FIXTURE_DEF = PhysicsFactory.createFixtureDef(0.6f, 0.0f, 0.0f);
final FixtureDef wallFixtureDef = PhysicsFactory.createFixtureDef(1, 0.0f, 0.0f);
@Override
public EngineOptions onCreateEngineOptions() {
// TODO Auto-generated method stub
camera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
return new EngineOptions(true, ScreenOrientation.PORTRAIT_FIXED, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), camera);
}
@Override
protected void onCreateResources() {
// TODO Auto-generated method stub
BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");
mBitmapTextureAtlas = new BitmapTextureAtlas(this.getTextureManager(), 84, 84, TextureOptions.BILINEAR);
smileyRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset(mBitmapTextureAtlas, getAssets(), "smiley.png", 0, 0);
mBitmapTextureAtlas.load();
enableAccelerationSensor(this);
}
@Override
protected Scene onCreateScene() {
// TODO Auto-generated method stub
this.mScene = new Scene();
this.mScene.setBackground(new Background(0, 0, 0));
this.mScene.setOnSceneTouchListener(this);
this.mPhysicsWorld = new PhysicsWorld(new Vector2(0, 15), false);
final VertexBufferObjectManager vertexBufferObjectManager = this.getVertexBufferObjectManager();
Rectangle rect1 = new Rectangle((CAMERA_WIDTH/2) - 100, (CAMERA_HEIGHT/2) + 50, 200, 10, vertexBufferObjectManager);
slabWallBody = PhysicsFactory.createBoxBody(this.mPhysicsWorld, rect1, BodyType.StaticBody, wallFixtureDef);
slabWallBody.setUserData("slab");
mPhysicsWorld.registerPhysicsConnector(new PhysicsConnector(rect1, slabWallBody, false, false));
smileySprite = new Sprite(smileyRegion.getWidth(), smileyRegion.getHeight(), smileyRegion, vertexBufferObjectManager);
smileyBody = PhysicsFactory.createCircleBody(mPhysicsWorld, smileySprite, BodyType.DynamicBody, FIXTURE_DEF);
smileyBody.setUserData("smiley");
mPhysicsWorld.registerPhysicsConnector(new PhysicsConnector(smileySprite, smileyBody, true, false));
final Rectangle ground = new Rectangle(0, CAMERA_HEIGHT - 2, CAMERA_WIDTH, 2, vertexBufferObjectManager);
final Rectangle roof = new Rectangle(0, 0, CAMERA_WIDTH, 2, vertexBufferObjectManager);
final Rectangle left = new Rectangle(0, 0, 2, CAMERA_HEIGHT, vertexBufferObjectManager);
final Rectangle right = new Rectangle(CAMERA_WIDTH - 2, 0, 2, CAMERA_HEIGHT, vertexBufferObjectManager);
PhysicsFactory.createBoxBody(this.mPhysicsWorld, ground, BodyType.StaticBody, wallFixtureDef).setUserData("wall");
PhysicsFactory.createBoxBody(this.mPhysicsWorld, roof, BodyType.StaticBody, wallFixtureDef).setUserData("wall");
PhysicsFactory.createBoxBody(this.mPhysicsWorld, left, BodyType.StaticBody, wallFixtureDef).setUserData("wall");
PhysicsFactory.createBoxBody(this.mPhysicsWorld, right, BodyType.StaticBody, wallFixtureDef).setUserData("wall");
mScene.attachChild(smileySprite);
mScene.attachChild(rect1);
mScene.attachChild(right);
mScene.attachChild(left);
mScene.attachChild(roof);
mScene.attachChild(ground);
this.mScene.registerUpdateHandler(this.mPhysicsWorld);
mPhysicsWorld.setContactListener(this);
mScene.setOnSceneTouchListener(this);
return mScene;
}
@Override
public boolean onSceneTouchEvent(Scene pScene, TouchEvent pSceneTouchEvent) {
// TODO Auto-generated method stub
smileyBody.setLinearVelocity(0, -15);
return false;
}
@Override
public void onAccelerationAccuracyChanged(AccelerationData pAccelerationData) {
// TODO Auto-generated method stub
}
@Override
public void onAccelerationChanged(AccelerationData pAccelerationData) {
// TODO Auto-generated method stub
final Vector2 gravity = Vector2Pool.obtain(0, 15);
this.mPhysicsWorld.setGravity(gravity);
Vector2Pool.recycle(gravity);
smileyBody.setLinearVelocity(pAccelerationData.getX() * 2, smileyBody.getLinearVelocity().y);
}
@Override
public void beginContact(Contact contact) {
// TODO Auto-generated method stub
// Log.d("begin contact", "begin contact");
// Log.d("begin contact", smileyBody.getLinearVelocity().toString() + "");
}
@Override
public void endContact(Contact contact) {
// TODO Auto-generated method stub
contact.setEnabled(true);
// Log.d("end contact", "end contact");
// Log.d("end contact", smileyBody.getLinearVelocity().toString());
}
Vector2 v;
@Override
public void preSolve(Contact contact, Manifold oldManifold) {
// TODO Auto-generated method stub
// Log.d("presolve", "presolve");
// Log.d("presolve", smileyBody.getLinearVelocity().toString());
Fixture fixtureA = contact.getFixtureA();
Fixture fixtureB = contact.getFixtureB();
Fixture platFormFixture = null;
Fixture ballFixture = null;
if(fixtureA.getBody().getUserData().equals("slab") && fixtureB.getBody().getUserData().equals("smiley")) {
platFormFixture = fixtureA;
ballFixture = fixtureB;
}
if(fixtureA.getBody().getUserData().equals("smiley") && fixtureB.getBody().getUserData().equals("slab")) {
platFormFixture = fixtureB;
ballFixture = fixtureA;
}
if(platFormFixture == null) {
return;
}
Body platFormBody = platFormFixture.getBody();
Body ballBody = ballFixture.getBody();
WorldManifold worldManiFold = contact.getWorldManifold();
int numPoints = contact.getWorldManifold().getNumberOfContactPoints();
for(int i = 0; i < numPoints; i++){
Vector2 vector2 = ballBody.getLinearVelocityFromWorldPoint(worldManiFold.getPoints()[i]);
if(vector2.y < 0) {
contact.setEnabled(false);
}
}
// WorldManifold worldManiFold = contact.getWorldManifold();
// Vector2 normal = worldManiFold.getNormal();
//
// if(normal.y != -1) {
// contact.setEnabled(false);
// }
}
@Override
public void postSolve(Contact contact, ContactImpulse impulse) {
// TODO Auto-generated method stub
// Log.d("postsolve", "postsolve");
// Log.d("postsolve", smileyBody.getLinearVelocity().toString());
}
}
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