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为什么要去封装我们自己的Actor?
答:Actor本身可能无法满足我们的开发需求,或者无法支持各种各样的效果,由此需要在其基础上进行拓展。
下面贴出本人二次封装的CHActor代码,供大家参考:
1.CHActor使用了对象缓存池,自动管理释放,很好的解决了游戏中使用大量对象导致帧数较低的问题。
2.自行设置绘制的纹理,而不必使用Image。创建过多的Image会导致帧数下降的很厉害。
3.可自由继承CHActor,方便自己再次扩展。
用法:
CHActor chactor = CHActor.obtain();// 使用缓存池里面的
CHActor chactor = new CHActor();// 纯新建
YourActor extends CHActor {...}
YourActor youractor = CHActor.obtain(YourActor.class);
基于libGdx二次封装的CHGame框架 :
https://git.oschina.net/oahcfly/CHGame
package com.oahcfly.chgame.core.mvc; import com.badlogic.gdx.graphics.Color; import com.badlogic.gdx.graphics.Texture; import com.badlogic.gdx.graphics.g2d.Batch; import com.badlogic.gdx.graphics.g2d.Sprite; import com.badlogic.gdx.graphics.g2d.TextureAtlas.AtlasRegion; import com.badlogic.gdx.graphics.g2d.TextureRegion; import com.badlogic.gdx.scenes.scene2d.Actor; import com.badlogic.gdx.utils.Align; import com.badlogic.gdx.utils.Pool; import com.badlogic.gdx.utils.Pool.Poolable; import com.badlogic.gdx.utils.Pools; import com.oahcfly.chgame.core.Chao; /** * * <pre> * 二次封装的actor * * date: 2014-12-11 * </pre> * * @author caohao */ public class CHActor extends Actor implements Poolable { private int tag; private Texture bgTexture; private TextureRegion bgTextureRegion; public CHActor() { } @Override public void draw(Batch batch, float parentAlpha) { Color color = getColor(); batch.setColor(color.r, color.g, color.b, color.a); float x = getX(); float y = getY(); float scaleX = getScaleX(); float scaleY = getScaleY(); float width = getWidth(); float height = getHeight(); if (bgTexture != null) { batch.draw(bgTexture, x, y, getOriginX(), getOriginY(), getWidth(), getHeight(), scaleX, scaleY, getRotation(), 0, 0, (int) width, (int) height, false, false); } if (bgTextureRegion != null) { if (bgTextureRegion instanceof Sprite) { Sprite sprite = (Sprite) bgTextureRegion; sprite.setColor(batch.getColor()); sprite.setOrigin(getOriginX(), getOriginY()); sprite.setPosition(x, y); sprite.setScale(scaleX, scaleY); sprite.setSize(width, height); sprite.setRotation(getRotation()); sprite.draw(batch); } else { batch.draw(bgTextureRegion, x, y, getOriginX(), getOriginY(), width, height, scaleX, scaleY, getRotation()); } } } public void setBgTexture(Texture bgTexture) { this.bgTexture = bgTexture; if (bgTexture != null) { setSize(bgTexture.getWidth(), bgTexture.getHeight()); } setOrigin(Align.center); } /** * * <pre> * 使用缓存池 * * date: 2015-1-3 * </pre> * * @author caohao * @return */ @SuppressWarnings("unchecked") public static <T extends CHActor> T obtain(Class<T> type) { Pool<CHActor> pool = (Pool<CHActor>) Pools.get(type); CHActor actor = pool.obtain(); actor.setBgTexture(null); return (T) actor; } public static CHActor obtain() { return obtain(CHActor.class); } @Override public void reset() { // 初始化 this.bgTexture = null; this.bgTextureRegion = null; setScale(1); setRotation(0); clear(); setUserObject(null); this.setColor(new Color(1, 1, 1, 1)); setStage(null); setParent(null); setVisible(true); setName(null); setOrigin(Align.center); setPosition(0, 0); } public Texture getBgTexture() { return bgTexture; } public TextureRegion getBgTextureRegion() { return bgTextureRegion; } public void setBgTextureRegion(TextureRegion textureRegion) { this.bgTextureRegion = textureRegion; if (bgTextureRegion != null) { if (bgTextureRegion instanceof Sprite) { Sprite sprite = (Sprite) bgTextureRegion; setSize(sprite.getWidth(), sprite.getHeight()); } else if (bgTextureRegion instanceof AtlasRegion) { AtlasRegion atlasRegion = (AtlasRegion) bgTextureRegion; bgTextureRegion = Chao.plistCenter.createSprite(atlasRegion); Sprite sprite = (Sprite) bgTextureRegion; setSize(sprite.getWidth(), sprite.getHeight()); } else { setSize(bgTextureRegion.getRegionWidth(), bgTextureRegion.getRegionHeight()); } } setOrigin(Align.center); } @Override public boolean remove() { boolean remove = super.remove(); if (remove) { Pools.free(this); } return remove; } public int getTag() { return tag; } public void setTag(int tag) { this.tag = tag; } }
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原文地址:http://my.oschina.net/oahcfly/blog/465675