Java 使用缩放进行引擎背景缩放
我有一个游戏场景,其中我使用了ZoomCamera、一个背景和一些“病毒”。 问题是,当我放大或缩小背景时,也会缩放,我不希望这样,请帮助Java 使用缩放进行引擎背景缩放,java,background,camera,andengine,pinchzoom,Java,Background,Camera,Andengine,Pinchzoom,我有一个游戏场景,其中我使用了ZoomCamera、一个背景和一些“病毒”。 问题是,当我放大或缩小背景时,也会缩放,我不希望这样,请帮助 公共类GameSecene扩展BaseSecene实现IScrollDetectorListener、IPinchZoomDetectorListener、IOnSceneTouchListener{ 私有静态最终字符串标记_ENTITY=“ENTITY”; 私有静态最终字符串标记\u实体\u属性\u X=“X”; 私有静态最终字符串标记\u实体\u属性
公共类GameSecene扩展BaseSecene实现IScrollDetectorListener、IPinchZoomDetectorListener、IOnSceneTouchListener{
私有静态最终字符串标记_ENTITY=“ENTITY”;
私有静态最终字符串标记\u实体\u属性\u X=“X”;
私有静态最终字符串标记\u实体\u属性\u Y=“Y”;
私有静态最终字符串标记\u实体\u属性\u TYPE=“TYPE”;
私有ZoomCamera mZoomCamera=GameActivity.mZoomCamera;
私有静态最终对象标记\实体\属性\类型\值\单元格=“单元格”;
//私有静态最终对象标记\实体\属性\类型\值\平台1=“平台1”;
//私有静态最终对象标记\实体\属性\类型\值\平台2=“平台2”;
//私有静态最终对象标记\实体\属性\类型\值\平台3=“平台3”;
//私有静态最终对象标记\实体\属性\类型\值\硬币=“硬币”;
专用表面滚动检测器;
私有PinchZoomDetector mPinchZoomDetector;
私有浮动mPinchZoomStartedCameraZoomFactor;
@凌驾
公共场景(){
this.mScrollDetector=新表面滚动检测器(this);
this.mPinchZoomDetector=新PinchZoomDetector(this);
this.setOnSceneTouchListener(this);
此.setTouchAreaBindingOnActionDownEnabled(true);
这个.setonareatouchtraversalfrontoback();
createBackground();
createHUD();
创建物理();
负荷水平(1);
}
@凌驾
public void onBackKeyPressed(){
SceneManager.getInstance().loadMenuScene(引擎);
}
私有void createBackground()
{Sprite bg=新的Sprite(400240,resourcesManager.menu_background_region,vbom);
阿塔奇尔德(bg);
/*attachChild(新精灵(400240,resourcesManager.menu\u background\u region,vbom)
{
@凌驾
受保护的空白预绘制(GLState pGLState、摄像头pCamera)
{
超级预拉伸(pGLState,pCamera);
pGLState.enableDither();
}
});*/
}
@凌驾
公共SceneType getSceneType(){
//TODO自动生成的方法存根
返回null;
}
@凌驾
公共无效处置()
{
摄像头。setHUD(空);
摄像机。设置中心(400240);
mZoomCamera.setZoomFactor(1.0f);
//负责处理场景的TODO代码
//移除所有游戏场景对象。
}
私人抬头显示器;
私人文本;
私有void createHUD()
{
gameHUD=新HUD();
//创建分数文本
scoreText=新文本(20220,resourcesManager.font,“分数:0123456789”,新文本选项(horizontallign.LEFT),vbom);
scoreText.setAnchorCenter(0,0);
scoreText.setText(“分数:0”);
gameHUD.attachChild(scoreText);
摄像机。setHUD(gameHUD);
}
私人智力得分=0;
私有void addToScore(int i)
{
分数+=i;
scoreText.setText(“分数:+Score”);
}
私人物理世界物理世界;
私人物理学()
{
physicsWorld=新固定步骤physicsWorld(60,新向量2(0,-17),false);
registerUpdateHandler(physicsWorld);
}
私有void加载级别(int-levelID)
{
最终SimpleLevel Loader levelLoader=新SimpleLevel Loader(vbom);
final FixtureDef FIXTURE_DEF=PhysicsFactory.createFixtureDef(0,0.01f,0.5f);
levelLoader.registerEntityLoader(新EntityLoader(LevelConstants.TAG_级别)
{
public Entity onLoadEntity(最终字符串pEntityName、最终Entity pParent、最终属性pAttributes、最终SimpleLevel EntityLoaderData PSImpleLevel EntityLoaderData)引发IOException
{
getIntAttributeOrThrow(pAttributes,LevelConstants.TAG\u LEVEL\u ATTRIBUTE\u WIDTH);
getIntAttributeOrThrow(pAttributes,LevelConstants.TAG\u LEVEL\u ATTRIBUTE\u HEIGHT);
//待办事项稍后,我们将指定摄影机边界并创建不可见墙
//在关卡的开头和结尾。
返回游戏场景。这个;
}
});
levelLoader.registerEntityLoader(新实体加载器(标记实体)
{
public Entity onLoadEntity(最终字符串pEntityName、最终Entity pParent、最终属性pAttributes、最终SimpleLevel EntityLoaderData PSImpleLevel EntityLoaderData)引发IOException
{
final int x=SAXUtils.getIntAttributeOrThrow(pAttributes,TAG_ENTITY_ATTRIBUTE_x);
final int y=SAXUtils.getIntAttributeOrThrow(pAttributes,TAG\u ENTITY\u ATTRIBUTE\u y);
最终字符串类型=SAXUtils.getAttributeOrThrow(pAttributes,标记\实体\属性\类型);
最终的精灵对象;
/*if(type.equals(标记\实体\属性\类型\值\平台1))
{
levelObject=新精灵(x,y,resourcesManager.platform1_区域,vbom);
createBoxBody(physicsWorld、levelObject、BodyType.StaticBody、FIXTURE_DEF).setUserData(“平台1”);
}
else if(type.equals(标记\实体\属性\类型\值\平台2))
{
levelObject=新精灵(x,y,resourcesManager.platform2_区域,vbom);
最终主体=PhysicsFactory.createBoxBody(physicsWorld、levelObject、BodyType.StaticBody、FIXTURE_DEF);
正文.setUserData(“平台2”);
注册物理连接器(新的物理连接器(levelObject,body,true,false));
}
else if(type.equals(标记\实体\属性\类型\值\平台3))
{
levelObject=新精灵(x,y,resourcesManager.platform3_区域,vbom);
最终主体=PhysicsFactory.createBoxBody(physicsWorld、levelObject、BodyType.StaticBody、FIXTURE_DEF);
body.setUserData(“平台3”);
注册物理连接器(新的物理连接器(levelObject,body,true,false));
}
else*/if(type.equals)(标记\实体\属性\类型\值\单元格
public class GameScene extends BaseScene implements IScrollDetectorListener, IPinchZoomDetectorListener, IOnSceneTouchListener {
private static final String TAG_ENTITY = "entity";
private static final String TAG_ENTITY_ATTRIBUTE_X = "x";
private static final String TAG_ENTITY_ATTRIBUTE_Y = "y";
private static final String TAG_ENTITY_ATTRIBUTE_TYPE = "type";
private ZoomCamera mZoomCamera = GameActivity.mZoomCamera;
private static final Object TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_CELL = "cell";
//private static final Object TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_PLATFORM1 = "platform1";
//private static final Object TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_PLATFORM2 = "platform2";
//private static final Object TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_PLATFORM3 = "platform3";
//private static final Object TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_COIN = "coin";
private SurfaceScrollDetector mScrollDetector;
private PinchZoomDetector mPinchZoomDetector;
private float mPinchZoomStartedCameraZoomFactor;
@Override
public void createScene() {
this.mScrollDetector = new SurfaceScrollDetector(this);
this.mPinchZoomDetector = new PinchZoomDetector(this);
this.setOnSceneTouchListener(this);
this.setTouchAreaBindingOnActionDownEnabled(true);
this.setOnAreaTouchTraversalFrontToBack();
createBackground();
createHUD();
createPhysics();
loadLevel(1);
}
@Override
public void onBackKeyPressed() {
SceneManager.getInstance().loadMenuScene(engine);
}
private void createBackground()
{ Sprite bg=new Sprite(400, 240, resourcesManager.menu_background_region, vbom);
attachChild(bg);
/*attachChild(new Sprite(400, 240, resourcesManager.menu_background_region, vbom)
{
@Override
protected void preDraw(GLState pGLState, Camera pCamera)
{
super.preDraw(pGLState, pCamera);
pGLState.enableDither();
}
});*/
}
@Override
public SceneType getSceneType() {
// TODO Auto-generated method stub
return null;
}
@Override
public void disposeScene()
{
camera.setHUD(null);
camera.setCenter(400, 240);
mZoomCamera.setZoomFactor(1.0f);
// TODO code responsible for disposing scene
// removing all game scene objects.
}
private HUD gameHUD;
private Text scoreText;
private void createHUD()
{
gameHUD = new HUD();
// CREATE SCORE TEXT
scoreText = new Text(20, 420, resourcesManager.font, "Score: 0123456789", new TextOptions(HorizontalAlign.LEFT), vbom);
scoreText.setAnchorCenter(0, 0);
scoreText.setText("Score: 0");
gameHUD.attachChild(scoreText);
camera.setHUD(gameHUD);
}
private int score = 0;
private void addToScore(int i)
{
score += i;
scoreText.setText("Score: " + score);
}
private PhysicsWorld physicsWorld;
private void createPhysics()
{
physicsWorld = new FixedStepPhysicsWorld(60, new Vector2(0, -17), false);
registerUpdateHandler(physicsWorld);
}
private void loadLevel(int levelID)
{
final SimpleLevelLoader levelLoader = new SimpleLevelLoader(vbom);
final FixtureDef FIXTURE_DEF = PhysicsFactory.createFixtureDef(0, 0.01f, 0.5f);
levelLoader.registerEntityLoader(new EntityLoader<SimpleLevelEntityLoaderData>(LevelConstants.TAG_LEVEL)
{
public IEntity onLoadEntity(final String pEntityName, final IEntity pParent, final Attributes pAttributes, final SimpleLevelEntityLoaderData pSimpleLevelEntityLoaderData) throws IOException
{
SAXUtils.getIntAttributeOrThrow(pAttributes, LevelConstants.TAG_LEVEL_ATTRIBUTE_WIDTH);
SAXUtils.getIntAttributeOrThrow(pAttributes, LevelConstants.TAG_LEVEL_ATTRIBUTE_HEIGHT);
// TODO later we will specify camera BOUNDS and create invisible walls
// on the beginning and on the end of the level.
return GameScene.this;
}
});
levelLoader.registerEntityLoader(new EntityLoader<SimpleLevelEntityLoaderData>(TAG_ENTITY)
{
public IEntity onLoadEntity(final String pEntityName, final IEntity pParent, final Attributes pAttributes, final SimpleLevelEntityLoaderData pSimpleLevelEntityLoaderData) throws IOException
{
final int x = SAXUtils.getIntAttributeOrThrow(pAttributes, TAG_ENTITY_ATTRIBUTE_X);
final int y = SAXUtils.getIntAttributeOrThrow(pAttributes, TAG_ENTITY_ATTRIBUTE_Y);
final String type = SAXUtils.getAttributeOrThrow(pAttributes, TAG_ENTITY_ATTRIBUTE_TYPE);
final Sprite levelObject;
/* if (type.equals(TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_PLATFORM1))
{
levelObject = new Sprite(x, y, resourcesManager.platform1_region, vbom);
PhysicsFactory.createBoxBody(physicsWorld, levelObject, BodyType.StaticBody, FIXTURE_DEF).setUserData("platform1");
}
else if (type.equals(TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_PLATFORM2))
{
levelObject = new Sprite(x, y, resourcesManager.platform2_region, vbom);
final Body body = PhysicsFactory.createBoxBody(physicsWorld, levelObject, BodyType.StaticBody, FIXTURE_DEF);
body.setUserData("platform2");
physicsWorld.registerPhysicsConnector(new PhysicsConnector(levelObject, body, true, false));
}
else if (type.equals(TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_PLATFORM3))
{
levelObject = new Sprite(x, y, resourcesManager.platform3_region, vbom);
final Body body = PhysicsFactory.createBoxBody(physicsWorld, levelObject, BodyType.StaticBody, FIXTURE_DEF);
body.setUserData("platform3");
physicsWorld.registerPhysicsConnector(new PhysicsConnector(levelObject, body, true, false));
}
else*/ if (type.equals(TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_CELL))
{
levelObject = new Sprite(x, y, resourcesManager.cell_region, vbom);
final Body body = PhysicsFactory.createBoxBody(physicsWorld, levelObject, BodyType.StaticBody, FIXTURE_DEF);
body.setUserData("cell");
physicsWorld.registerPhysicsConnector(new PhysicsConnector(levelObject, body, true, false));
}
/*else if (type.equals(TAG_ENTITY_ATTRIBUTE_TYPE_VALUE_COIN))
{
levelObject = new Sprite(x, y, resourcesManager.coin_region, vbom)
{
@Override
protected void onManagedUpdate(float pSecondsElapsed)
{
super.onManagedUpdate(pSecondsElapsed);
/**
* TODO
* we will later check if player collide with this (coin)
* and if it does, we will increase score and hide coin
* it will be completed in next articles (after creating player code)
}
};
levelObject.registerEntityModifier(new LoopEntityModifier(new ScaleModifier(1, 1, 1.3f)));
} */
else
{
throw new IllegalArgumentException();
}
levelObject.setCullingEnabled(true);
return levelObject;
}
});
levelLoader.loadLevelFromAsset(activity.getAssets(), "level/" + levelID + ".lvl");
}
@Override
public boolean onSceneTouchEvent(Scene pScene, TouchEvent pSceneTouchEvent) {
this.mPinchZoomDetector.onTouchEvent(pSceneTouchEvent);
if(this.mPinchZoomDetector.isZooming()) {
this.mScrollDetector.setEnabled(false);
} else {
if(pSceneTouchEvent.isActionDown()) {
this.mScrollDetector.setEnabled(true);
}
this.mScrollDetector.onTouchEvent(pSceneTouchEvent);
}
return true;
}
@Override
public void onPinchZoomStarted(PinchZoomDetector pPinchZoomDetector,
TouchEvent pSceneTouchEvent) {
this.mPinchZoomStartedCameraZoomFactor = this.mZoomCamera.getZoomFactor();
}
@Override
public void onPinchZoom(PinchZoomDetector pPinchZoomDetector,
TouchEvent pTouchEvent, float pZoomFactor) {
this.mZoomCamera.setZoomFactor(this.mPinchZoomStartedCameraZoomFactor * pZoomFactor);
}
@Override
public void onPinchZoomFinished(PinchZoomDetector pPinchZoomDetector,
TouchEvent pTouchEvent, float pZoomFactor) {
this.mZoomCamera.setZoomFactor(this.mPinchZoomStartedCameraZoomFactor * pZoomFactor);
}
@Override
public void onScrollStarted(ScrollDetector pScollDetector, int pPointerID,
float pDistanceX, float pDistanceY) {
final float zoomFactor = mZoomCamera.getZoomFactor();
mZoomCamera.offsetCenter(-pDistanceX / zoomFactor, pDistanceY / zoomFactor);
}
@Override
public void onScroll(ScrollDetector pScollDetector, int pPointerID,
float pDistanceX, float pDistanceY) {
final float zoomFactor = mZoomCamera.getZoomFactor();
mZoomCamera.offsetCenter(-pDistanceX / zoomFactor, pDistanceY / zoomFactor);
}
@Override
public void onScrollFinished(ScrollDetector pScollDetector, int pPointerID,
float pDistanceX, float pDistanceY) {
final float zoomFactor = mZoomCamera.getZoomFactor();
mZoomCamera.offsetCenter(-pDistanceX / zoomFactor, pDistanceY / zoomFactor);
}
setBackground(new SpriteBackground(bg));