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

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
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The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
****************************************************************************/
#ifndef __CCTMX_TILE_MAP_H__
#define __CCTMX_TILE_MAP_H__

#include "2d/CCNode.h"
#include "2d/CCTMXObjectGroup.h"
#include "base/CCValue.h"

NS_CC_BEGIN

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,
    
    /** Isometric staggered orientation*/
    TMXOrientationStaggered,
};

/** @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__