axmol/cocos2dx/tilemap_parallax_nodes/CCTMXTiledMap.h

/****************************************************************************
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2009-2010 Ricardo Quesada
Copyright (c) 2011      Zynga Inc.

http://www.cocos2d-x.org

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****************************************************************************/
#ifndef __CCTMX_TILE_MAP_H__
#define __CCTMX_TILE_MAP_H__

#include "base_nodes/CCNode.h"
#include "CCTMXObjectGroup.h"

NS_CC_BEGIN

class TMXObjectGroup;
class TMXLayer;
class TMXLayerInfo;
class TMXTilesetInfo;
class TMXMapInfo;

/**
 * @addtogroup tilemap_parallax_nodes
 * @{
 */

/** Possible orientations of the TMX map */
enum
{
    /** Orthogonal orientation */
    TMXOrientationOrtho,

    /** Hexagonal orientation */
    TMXOrientationHex,

    /** Isometric orientation */
    TMXOrientationIso,
};

/** @brief TMXTiledMap knows how to parse and render a TMX map.

It adds support for the TMX tiled map format used by http://www.mapeditor.org
It supports isometric, hexagonal and orthogonal tiles.
It also supports object groups, objects, and properties.

Features:
- Each tile will be treated as an Sprite
- The sprites are created on demand. They will be created only when you call "layer->tileAt(position)"
- Each tile can be rotated / moved / scaled / tinted / "opaqued", since each tile is a Sprite
- Tiles can be added/removed in runtime
- The z-order of the tiles can be modified in runtime
- Each tile has an anchorPoint of (0,0)
- The anchorPoint of the TMXTileMap is (0,0)
- The TMX layers will be added as a child
- The TMX layers will be aliased by default
- The tileset image will be loaded using the TextureCache
- Each tile will have a unique tag
- Each tile will have a unique z value. top-left: z=1, bottom-right: z=max z
- Each object group will be treated as an MutableArray
- Object class which will contain all the properties in a dictionary
- Properties can be assigned to the Map, Layer, Object Group, and Object

Limitations:
- It only supports one tileset per layer.
- Embedded images are not supported
- It only supports the XML format (the JSON format is not supported)

Technical description:
Each layer is created using an TMXLayer (subclass of SpriteBatchNode). If you have 5 layers, then 5 TMXLayer will be created,
unless the layer visibility is off. In that case, the layer won't be created at all.
You can obtain the layers (TMXLayer objects) at runtime by:
- map->getChildByTag(tag_number);  // 0=1st layer, 1=2nd layer, 2=3rd layer, etc...
- map->layerNamed(name_of_the_layer);

Each object group is created using a TMXObjectGroup which is a subclass of MutableArray.
You can obtain the object groups at runtime by:
- map->objectGroupNamed(name_of_the_object_group);

Each object is a TMXObject.

Each property is stored as a key-value pair in an MutableDictionary.
You can obtain the properties at runtime by:

map->propertyNamed(name_of_the_property);
layer->propertyNamed(name_of_the_property);
objectGroup->propertyNamed(name_of_the_property);
object->propertyNamed(name_of_the_property);

@since v0.8.1
*/
class CC_DLL TMXTiledMap : public Node
{
    /** the map's size property measured in tiles */
    CC_SYNTHESIZE_PASS_BY_REF(Size, _mapSize, MapSize);
    /** the tiles's size property measured in pixels */
    CC_SYNTHESIZE_PASS_BY_REF(Size, _tileSize, TileSize);
    /** map orientation */
    CC_SYNTHESIZE(int, _mapOrientation, MapOrientation);
    /** object groups */
    CC_PROPERTY(Array*, _objectGroups, ObjectGroups);
    /** properties */
    CC_PROPERTY(Dictionary*, _properties, Properties);
public:
    TMXTiledMap();
    virtual ~TMXTiledMap();

    /** creates a TMX Tiled Map with a TMX file.*/
    static TMXTiledMap* create(const char *tmxFile);

    /** initializes a TMX Tiled Map with a TMX formatted XML string and a path to TMX resources */
    static TMXTiledMap* createWithXML(const char* tmxString, const char* resourcePath);

    /** initializes a TMX Tiled Map with a TMX file */
    bool initWithTMXFile(const char *tmxFile);

    /** initializes a TMX Tiled Map with a TMX formatted XML string and a path to TMX resources */
    bool initWithXML(const char* tmxString, const char* resourcePath);

    /** return the TMXLayer for the specific layer */
    TMXLayer* layerNamed(const char *layerName);

    /** return the TMXObjectGroup for the specific group */
    TMXObjectGroup* objectGroupNamed(const char *groupName);

    /** return the value for the specific property name */
    String *propertyNamed(const char *propertyName);

    /** return properties dictionary for tile GID */
    Dictionary* propertiesForGID(int GID);

private:
    TMXLayer * parseLayer(TMXLayerInfo *layerInfo, TMXMapInfo *mapInfo);
    TMXTilesetInfo * tilesetForLayer(TMXLayerInfo *layerInfo, TMXMapInfo *mapInfo);
    void buildWithMapInfo(TMXMapInfo* mapInfo);
protected:
    //! tile properties
    Dictionary* _tileProperties;

};

// end of tilemap_parallax_nodes group
/// @}

NS_CC_END

#endif //__CCTMX_TILE_MAP_H__