mirror of https://github.com/axmolengine/axmol.git
187 lines
7.5 KiB
C++
187 lines
7.5 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2009-2010 Ricardo Quesada
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Copyright (C) 2009 Matt Oswald
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Copyright (c) 2011 Zynga Inc.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __CC_SPRITE_BATCH_NODE_H__
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#define __CC_SPRITE_BATCH_NODE_H__
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#include "base_nodes/CCNode.h"
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#include "CCProtocols.h"
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#include "textures/CCTextureAtlas.h"
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#include "ccMacros.h"
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#include "cocoa/CCArray.h"
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NS_CC_BEGIN
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/**
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* @addtogroup sprite_nodes
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* @{
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*/
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#define kDefaultSpriteBatchCapacity 29
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class Sprite;
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/** SpriteBatchNode is like a batch node: if it contains children, it will draw them in 1 single OpenGL call
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* (often known as "batch draw").
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*
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* A SpriteBatchNode can reference one and only one texture (one image file, one texture atlas).
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* Only the Sprites that are contained in that texture can be added to the SpriteBatchNode.
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* All Sprites added to a SpriteBatchNode are drawn in one OpenGL ES draw call.
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* If the Sprites are not added to a SpriteBatchNode then an OpenGL ES draw call will be needed for each one, which is less efficient.
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*
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*
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* Limitations:
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* - The only object that is accepted as child (or grandchild, grand-grandchild, etc...) is Sprite or any subclass of Sprite. eg: particles, labels and layer can't be added to a SpriteBatchNode.
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* - Either all its children are Aliased or Antialiased. It can't be a mix. This is because "alias" is a property of the texture, and all the sprites share the same texture.
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*
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* @since v0.7.1
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*/
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class CC_DLL SpriteBatchNode : public Node, public TextureProtocol
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{
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public:
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SpriteBatchNode();
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~SpriteBatchNode();
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// property
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// retain
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inline TextureAtlas* getTextureAtlas(void) { return _textureAtlas; }
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inline void setTextureAtlas(TextureAtlas* textureAtlas)
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{
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if (textureAtlas != _textureAtlas)
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{
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CC_SAFE_RETAIN(textureAtlas);
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CC_SAFE_RELEASE(_textureAtlas);
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_textureAtlas = textureAtlas;
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}
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}
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inline Array* getDescendants(void) { return _descendants; }
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/** creates a SpriteBatchNode with a texture2d and capacity of children.
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The capacity will be increased in 33% in runtime if it run out of space.
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*/
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static SpriteBatchNode* createWithTexture(Texture2D* tex, unsigned int capacity);
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static SpriteBatchNode* createWithTexture(Texture2D* tex) {
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return SpriteBatchNode::createWithTexture(tex, kDefaultSpriteBatchCapacity);
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}
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/** creates a SpriteBatchNode with a file image (.png, .jpeg, .pvr, etc) and capacity of children.
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The capacity will be increased in 33% in runtime if it run out of space.
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The file will be loaded using the TextureMgr.
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*/
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static SpriteBatchNode* create(const char* fileImage, unsigned int capacity);
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static SpriteBatchNode* create(const char* fileImage) {
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return SpriteBatchNode::create(fileImage, kDefaultSpriteBatchCapacity);
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}
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/** initializes a SpriteBatchNode with a texture2d and capacity of children.
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The capacity will be increased in 33% in runtime if it run out of space.
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*/
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bool initWithTexture(Texture2D *tex, unsigned int capacity);
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/** initializes a SpriteBatchNode with a file image (.png, .jpeg, .pvr, etc) and a capacity of children.
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The capacity will be increased in 33% in runtime if it run out of space.
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The file will be loaded using the TextureMgr.
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*/
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bool initWithFile(const char* fileImage, unsigned int capacity);
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bool init();
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void increaseAtlasCapacity();
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/** removes a child given a certain index. It will also cleanup the running actions depending on the cleanup parameter.
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@warning Removing a child from a SpriteBatchNode is very slow
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*/
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void removeChildAtIndex(unsigned int index, bool doCleanup);
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void insertChild(Sprite *child, unsigned int index);
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void appendChild(Sprite* sprite);
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void removeSpriteFromAtlas(Sprite *sprite);
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unsigned int rebuildIndexInOrder(Sprite *parent, unsigned int index);
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unsigned int highestAtlasIndexInChild(Sprite *sprite);
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unsigned int lowestAtlasIndexInChild(Sprite *sprite);
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unsigned int atlasIndexForChild(Sprite *sprite, int z);
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/* Sprites use this to start sortChildren, don't call this manually */
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void reorderBatch(bool reorder);
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//
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// Overrides
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//
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// TextureProtocol
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virtual Texture2D* getTexture(void) override;
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virtual void setTexture(Texture2D *texture) override;
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virtual void setBlendFunc(const BlendFunc &blendFunc) override;
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virtual const BlendFunc& getBlendFunc(void) const override;
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virtual void visit(void) override;
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virtual void addChild(Node * child) override;
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virtual void addChild(Node * child, int zOrder) override;
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virtual void addChild(Node * child, int zOrder, int tag) override;
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virtual void reorderChild(Node * child, int zOrder) override;
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virtual void removeChild(Node* child, bool cleanup) override;
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virtual void removeAllChildrenWithCleanup(bool cleanup) override;
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virtual void sortAllChildren() override;
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virtual void draw(void) override;
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protected:
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/** Inserts a quad at a certain index into the texture atlas. The Sprite won't be added into the children array.
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This method should be called only when you are dealing with very big AtlasSrite and when most of the Sprite won't be updated.
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For example: a tile map (TMXMap) or a label with lots of characters (LabelBMFont)
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*/
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void insertQuadFromSprite(Sprite *sprite, unsigned int index);
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/** Updates a quad at a certain index into the texture atlas. The Sprite won't be added into the children array.
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This method should be called only when you are dealing with very big AtlasSrite and when most of the Sprite won't be updated.
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For example: a tile map (TMXMap) or a label with lots of characters (LabelBMFont)
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*/
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void updateQuadFromSprite(Sprite *sprite, unsigned int index);
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/* This is the opposite of "addQuadFromSprite.
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It add the sprite to the children and descendants array, but it doesn't update add it to the texture atlas
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*/
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SpriteBatchNode * addSpriteWithoutQuad(Sprite*child, unsigned int z, int aTag);
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private:
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void updateAtlasIndex(Sprite* sprite, int* curIndex);
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void swap(int oldIndex, int newIndex);
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void updateBlendFunc();
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protected:
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TextureAtlas *_textureAtlas;
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BlendFunc _blendFunc;
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// all descendants: children, gran children, etc...
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Array* _descendants;
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};
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// end of sprite_nodes group
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/// @}
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NS_CC_END
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#endif // __CC_SPRITE_BATCH_NODE_H__
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