axmol/cocos/2d/CCTMXTiledMap.h

/****************************************************************************
Copyright (c) 2009-2010 Ricardo Quesada
Copyright (c) 2010-2012 cocos2d-x.org
Copyright (c) 2011      Zynga Inc.
Copyright (c) 2013-2014 Chukong Technologies Inc.

http://www.cocos2d-x.org

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all copies or substantial portions of the Software.

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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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****************************************************************************/
#ifndef __CCTMX_TILE_MAP_H__
#define __CCTMX_TILE_MAP_H__

#include "2d/CCNode.h"
#include "CCTMXObjectGroup.h"
#include "base/CCValue.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->getLayer(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->getObjectGroup(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->getProperty(name_of_the_property);
layer->getProperty(name_of_the_property);
objectGroup->getProperty(name_of_the_property);
object->getProperty(name_of_the_property);

@since v0.8.1
*/
class CC_DLL TMXTiledMap : public Node
{
public:
    /** creates a TMX Tiled Map with a TMX file.*/
    static TMXTiledMap* create(const std::string& tmxFile);

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

    /** return the TMXLayer for the specific layer */
    TMXLayer* getLayer(const std::string& layerName) const;
    /**
     * @js NA
     * @lua NA
     */
    CC_DEPRECATED_ATTRIBUTE TMXLayer* layerNamed(const std::string& layerName) const { return getLayer(layerName); };

    /** return the TMXObjectGroup for the specific group */
    TMXObjectGroup* getObjectGroup(const std::string& groupName) const;
    /**
     * @js NA
     * @lua NA
     */
    CC_DEPRECATED_ATTRIBUTE TMXObjectGroup* objectGroupNamed(const std::string& groupName) const { return getObjectGroup(groupName); };

    /** return the value for the specific property name */
    Value getProperty(const std::string& propertyName) const;
    /**
     * @js NA
     * @lua NA
     */
    CC_DEPRECATED_ATTRIBUTE Value propertyNamed(const char *propertyName) const { return getProperty(propertyName); };

    /** return properties dictionary for tile GID */
    Value getPropertiesForGID(int GID) const;
    CC_DEPRECATED_ATTRIBUTE Value propertiesForGID(int GID) const { return getPropertiesForGID(GID); };

    /** Assings properties to argument value, returns true if it did found properties 
        for that GID and did assinged a value, else it returns false.
     */
    bool getPropertiesForGID(int GID, Value** value);

    /** the map's size property measured in tiles */
    inline const Size& getMapSize() const { return _mapSize; };
    inline void setMapSize(const Size& mapSize) { _mapSize = mapSize; };

    /** the tiles's size property measured in pixels */
    inline const Size& getTileSize() const { return _tileSize; };
    inline void setTileSize(const Size& tileSize) { _tileSize = tileSize; };

    /** map orientation */
    inline int getMapOrientation() const { return _mapOrientation; };
    inline void setMapOrientation(int mapOrientation) { _mapOrientation = mapOrientation; };

    /** object groups */
    inline const Vector<TMXObjectGroup*>& getObjectGroups() const { return _objectGroups; };
    inline Vector<TMXObjectGroup*>& getObjectGroups() { return _objectGroups; };
    inline void setObjectGroups(const Vector<TMXObjectGroup*>& groups) {
        _objectGroups = groups;
    };
    
    /** properties */
    inline ValueMap& getProperties() { return _properties; };
    inline void setProperties(const ValueMap& properties) {
        _properties = properties;
    };

    virtual std::string getDescription() const override;
    
CC_CONSTRUCTOR_ACCESS:
    /**
     * @js ctor
     */
    TMXTiledMap();
    /**
     * @js NA
     * @lua NA
     */
    virtual ~TMXTiledMap();
    
    /** initializes a TMX Tiled Map with a TMX file */
    bool initWithTMXFile(const std::string& tmxFile);
    
    /** initializes a TMX Tiled Map with a TMX formatted XML string and a path to TMX resources */
    bool initWithXML(const std::string& tmxString, const std::string& resourcePath);

protected:
    TMXLayer * parseLayer(TMXLayerInfo *layerInfo, TMXMapInfo *mapInfo);
    TMXTilesetInfo * tilesetForLayer(TMXLayerInfo *layerInfo, TMXMapInfo *mapInfo);
    void buildWithMapInfo(TMXMapInfo* mapInfo);

    /** the map's size property measured in tiles */
    Size _mapSize;
    /** the tiles's size property measured in pixels */
    Size _tileSize;
    /** map orientation */
    int _mapOrientation;
    /** object groups */
    Vector<TMXObjectGroup*> _objectGroups;
    /** properties */
    ValueMap _properties;
    
    //! tile properties
    ValueMapIntKey _tileProperties;

private:
    CC_DISALLOW_COPY_AND_ASSIGN(TMXTiledMap);

};

// end of tilemap_parallax_nodes group
/// @}

NS_CC_END

#endif //__CCTMX_TILE_MAP_H__