/* Copyright (c) 2024-2026 Luke Philipsen Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted. THE SOFTWARE IS PROVIDED “AS IS” AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* Usage Do this: #define RAYTMX_IMPLEMENTATION before you include this file in *one* C or C++ file to create the implementation. You can define RAYTMX_DEC with #define RAYTMX_DEC static or #define RAYTMX_DEC extern to specify raytmx function declarations as static or extern, respectively. The default specifier is extern. */ #ifndef RAYTMX_H #define RAYTMX_H #include /* isspace() */ #include /* floor(), INFINITY */ #include /* NULL */ #include /* int32_t, uint32_t */ #include /* atoi(), strtoul() */ #include /* memcpy(), memset(), strcpy(), strcpy_s() strlen(), strncpy(), strncpy_s() */ #include "raylib.h" #include "rlgl.h" #ifndef RAYTMX_DEC #define RAYTMX_DEC #endif /* RAYTMX_DEC */ #ifdef __cplusplus extern "C" { #endif /* __cpluspus */ /***************/ /* Definitions */ /** * Function signature of raylib's LoadTexture() as a type. For use with SetLoadTextureTMX(). */ typedef Texture2D (*LoadTextureCallback)(const char* fileName); /** * Bit flags passed to SetTraceLogFlagsTMX() that optionally disable the logging of specific TMX elements. */ enum tmx_log_flags { LOG_SKIP_PROPERTIES = 1, /**< Skip and child elements. */ LOG_SKIP_LAYERS = 2, /**< Skip , , , and layers and children thereof. */ LOG_SKIP_TILE_LAYERS = 4, /**< Skip layers and children thereof. */ LOG_SKIP_TILES = 8, /**< Skip tiles (GIDs) of tile layers (s). */ LOG_SKIP_OBJECT_GROUPS = 16, /**< Skip layers and children thereof. */ LOG_SKIP_OBJECTS = 32, /**< Skip objects of object layers (s). */ LOG_SKIP_IMAGE_LAYERS = 64, /**< Skip layers and children thereof. */ LOG_SKIP_IMAGES = 128, /**< Skip images of image layers (s). */ LOG_SKIP_WANG_SETS = 256, /**< Skip and child elements. */ LOG_SKIP_WANG_TILES = 512 /**< Skip Wang tiles of Wang sets (s). */ }; /** * Identifiers for the possible layer types. */ typedef enum tmx_layer_type { LAYER_TYPE_TILE_LAYER = 0, /**< Layer containing a set number of tiles referenced by Global IDs (GIDs). */ LAYER_TYPE_OBJECT_GROUP, /**< Layer containing an arbitrary number of various object types. */ LAYER_TYPE_IMAGE_LAYER, /**< Layer consisting of a single image. */ LAYER_TYPE_GROUP /**< Container layer, with no visuals of its own, that holds other, child layers. */ } TmxLayerType; /** * Identifiers for the possible property (data) types. */ typedef enum tmx_property_type { PROPERTY_TYPE_STRING = 0, /**< String, or a sequence of characters. */ PROPERTY_TYPE_INT, /**< Integer number. */ PROPERTY_TYPE_FLOAT, /**< Floating-point number. */ PROPERTY_TYPE_BOOL, /**< Boolean, true or false. */ PROPERTY_TYPE_COLOR, /**< Color with red, green, and blue values and a possible alpha value. */ PROPERTY_TYPE_FILE, /**< File name or path to a file as a string. */ PROPERTY_TYPE_OBJECT /**< Object () within the map as an integer ID. */ } TmxPropertyType; /** * Identifiers for the possible draw orders applicable to object layers. */ typedef enum tmx_object_group_draw_order { OBJECT_GROUP_DRAW_ORDER_TOP_DOWN = 0, /**< Drawn in ascending order by y-coordinate. */ OBJECT_GROUP_DRAW_ORDER_INDEX /**< Drawn in the order in which the appear in the document. */ } TmxObjectGroupDrawOrder; /** * Identifiers for the possible alignments of tiles with an object's bounds. */ typedef enum tmx_object_alignment { OBJECT_ALIGNMENT_UNSPECIFIED = 0, /**< For orthogonal, behaves like bottom-left. For isometric, like bottm. */ OBJECT_ALIGNMENT_TOP_LEFT, /**< Tiles are snapped to the upper-left bound of objects. */ OBJECT_ALIGNMENT_TOP, /**< Tiles are snapped to the upper-center bound of objects. */ OBJECT_ALIGNMENT_TOP_RIGHT, /**< Tiles are snapped to the upper-right bound of objects. */ OBJECT_ALIGNMENT_LEFT, /**< Tiles are snapped to the left-center bound of objects. */ OBJECT_ALIGNMENT_CENTER, /**< Tiles are snapped to the horizontal and vertical center of objects. */ OBJECT_ALIGNMENT_RIGHT, /**< Tiles are snapped to the right-center bound of objects. */ OBJECT_ALIGNMENT_BOTTOM_LEFT, /**< Tiles are snapped to the lower-left bound of objects. */ OBJECT_ALIGNMENT_BOTTOM, /**< Tiles are snapped to the lower-center bound of objects. */ OBJECT_ALIGNMENT_BOTTOM_RIGHT /**< Tiles are snapped to the lower-right bound of objects. */ } TmxObjectAlignment; /** * Identifiers for the possible object types. */ typedef enum tmx_object_type { OBJECT_TYPE_RECTANGLE = 0, /**< Four-sided polygon four right angles and axis-aligned edges. */ OBJECT_TYPE_ELLIPSE, /**< Ellipse, or a circle when the axes are equal. */ OBJECT_TYPE_POINT, /**< Individual (X, Y) coordinate with no dimensions. */ OBJECT_TYPE_POLYGON, /**< Filled polygon formed by an ordered series of points. */ OBJECT_TYPE_POLYLINE, /**< Unfilled polygon formed by an ordered series of points. */ OBJECT_TYPE_TEXT, /**< Text, or the visual representation of a string. */ OBJECT_TYPE_TILE /**< Tile, referenced by a Global ID (GID), from a tileset known to the map. */ } TmxObjectType; /** * Identifiers for the possible horizontal alignments of text. */ typedef enum tmx_horizontal_alignment { HORIZONTAL_ALIGNMENT_LEFT = 0, /**< Text is to be snapped to the left bound of its object. */ HORIZONTAL_ALIGNMENT_CENTER, /**< Text is to be centered along the X axis of its object. */ HORIZONTAL_ALIGNMENT_RIGHT, /**< Text is to be snapped to the right bound of its object. */ HORIZONTAL_ALIGNMENT_JUSTIFY /**< Text is to be evenly spaced, per line, filling the object's width. */ } TmxHorizontalAlignment; /** * Identifiers for the possible vertical alignments of text. */ typedef enum tmx_vertical_alignment { VERTICAL_ALIGNMENT_TOP = 0, /**< Text is to be snapped to the upper bound of its object. */ VERTICAL_ALIGNMENT_CENTER, /**< Text is to be cnetered along the Y axis of its object. */ VERTICAL_ALIGNMENT_BOTTOM /**< Text is to be snapped to the lower bound of its object. */ } TmxVerticalAlignment; /** * Identifiers for the possible map orientations. */ typedef enum tmx_orientation { ORIENTATION_NONE = 0, /**< Orientation was not specified. Assumed to be orthogonal. */ ORIENTATION_ORTHOGONAL, /**< Standard top-down view with rectanglular tiles. */ ORIENTATION_ISOMETRIC, /**< Subset top-down view from a 45-degree angle. NOT supported. */ ORIENTATION_STAGGERED, /**< Variation of isometric with staggered axes. */ ORIENTATION_HEXAGONAL /**< Top-down view in which tiles are six-sided and alternative rows/columns are offset. */ } TmxOrientation; /** * Identifiers for the possible orders in which tiles in a tile layer are rendered/drawn. */ typedef enum tmx_render_order { RENDER_ORDER_RIGHT_DOWN = 0, /**< Tiles are rendered by row, from left to right, then column, from top to bottom. */ RENDER_ORDER_RIGHT_UP, /**< Tiles are rendered by row, from left to right, then column, from bottom to top. */ RENDER_ORDER_LEFT_DOWN, /**< Tiles are rendered by row, from right to left, then column, from top to bottom. */ RENDER_ORDER_LEFT_UP /**< Tiles are rendered by row, from right to left, then column, from bottom to top. */ } TmxRenderOrder; /** * Model of an element. Defines an image and relevant attributes along with a loaded texture. */ typedef struct tmx_image { char* source; /**< File name and/or path referencing the image on disk. */ Color trans; /**< [optional] Color that defines is treated as transparent. Not currently implemented. */ bool hasTrans; /**< When true, indicates 'trans' has been set with a color to be treated as transparent. */ uint32_t width; /**< Width of the image in pixels. */ uint32_t height; /**< Height of the image in pixels. */ Texture2D texture; /**< The image as a raylib texture loaded into VRAM, if loading was successful. */ } TmxImage; /** * Model of a element when combined with the 'TmxLayer' model. Defines a tile layer with a fixed-size list of * tile Global IDs (GIDs). */ typedef struct tmx_tile_layer { uint32_t width; /**< Width of the layer in tiles. */ uint32_t height; /**< Height of the layer in tiles. */ char* encoding; /**< [optional] Encoding used to encode tiles. May be NULL, "base64," or "csv." */ char* compression; /**< [optional] Compression used to compress tiles. May be NULL, "gzip," "zlib," or "zstd." */ uint32_t* tiles; /**< Array of tile Global IDs (GIDs) contained by this tile layer. */ uint32_t tilesLength; /**< Length of the 'tiles' array. */ } TmxTileLayer; /** * Contains the information needed to quickly draw a single line of a element. */ typedef struct tmx_text_line { char* content; /**< The string to be drawn. This may be the whole content of the parent string or partial. */ Font font; /**< The raylib Font to be used when drawing. */ Vector2 position; /**< Absolute position of this line. This is separate from its object layer's potential offset. */ float spacing; /**< Spacing in pixels to be applied between each character when drawing. */ } TmxTextLine; /** * Model of a element along with some pre-calculated objects for efficient drawing. */ typedef struct tmx_text { char* fontFamily; /**< Font family (e.g. "sans-serif") to be used to render the text. */ uint32_t pixelSize; /**< Size of the font in pixels. */ bool wrap; /**< When true, indicates word wrapping should be used when appropriate. */ Color color; /**< Color of the text. */ bool bold; /**< When true, indicates the text should be bolded. */ bool italic; /**< When true, indicates the text should be italicized. */ bool underline; /**< When true, indicates the text should be underlined. */ bool strikeOut; /**< When true, indicates the text should be struck/crossed out. */ bool kerning; /**< When true, indicates kerning should be used when drawing. */ TmxHorizontalAlignment halign; /**< Horizontal alignment of the text within its object. */ TmxVerticalAlignment valign; /**< Vertical alignment of the text within its object. */ char* content; /**< The string to be drawn. */ TmxTextLine* lines; /**< Array of pre-calculated lines with all values needed to quickly draw this text. */ uint32_t linesLength; /**< Length of the 'lines' array. */ } TmxText; /** * Model of a element. Describes a property of the model it's attached to with a name, type, and value. */ typedef struct tmx_property { TmxPropertyType type; /**< The specific (data) type of the property indicating which associated value to read. */ char* name; /**< Name of the property. */ char* stringValue; /**< The property's value for string-typed properties. */ int32_t intValue; /**< The property's value for integer-typed properties. */ float floatValue; /**< The property's value for floating point-typed properties. */ bool boolValue; /**< The property's value for boolean-typed properties. */ Color colorValue; /**< The property's value for color-typed properties. */ } TmxProperty; /** * Model of an element within an element. Objects are amorphous entities of varying type but all * are potentially visible with positions and dimensions, although points' dimensions are effectively zero. */ typedef struct tmx_object { TmxObjectType type; /**< The specific object type indicating which optional fields have relevant information. */ uint32_t id; /**< Unique ID of the object. */ char* name; /**< Name of the object. */ char* typeString; /**< The type/class of the object. */ /* 'type' is a reserved keyword hence 'typeString' */ double x; /**< X coordinate, in pixels, of the object. This is separate from its object layer's potential offset. */ double y; /**< Y coordinate, in pixels, of the object. This is separate from its object layer's potential offset. */ double width; /**< Width of the object in pixels. */ double height; /**< Height of the object in pixels. */ double rotation; /**< Rotation of the object in (clockwise) degrees around the object's (x, y) position. */ uint32_t gid; /**< (Semi-optional) Global ID of a tile drawn as the object. If zero, the object is not a tile. */ bool visible; /**< When true, indicates the object will be drawn. */ char* templateString; /**< [optional] File name and/or path referencing an object template on disk applied to this object. If NULL, no template is used. */ Vector2* points; /**< [optional] Array of ordered points that define a poly(gon|line). Relative, not absolute. */ uint32_t pointsLength; /**< Length of the 'points' array. */ Vector2* drawPoints; /**< [optional] Array used as a buffer when drawing. Equal in length to the 'points' array. */ TmxText* text; /**< [optional] Text to be drawn. */ TmxProperty* properties; /**< Array of named, typed properties that apply to this object. */ uint32_t propertiesLength; /**< Length of the 'properties' array. */ Rectangle aabb; /**< Axis-Aligned Bounding Box (AABB). */ } TmxObject; /** * Model of an element when combined with the 'TmxLayer' model. Defines an object layer of an arbitrary * number of objects of varying types. */ typedef struct tmx_object_group { /* uint32_t width; */ /**< Width of the object layer in tiles. TMX documentation describes it as "meaningless." */ /* uint32_t height; */ /**< Height of the object layer in tiles. TMX documentation describes it as "meaningless." */ Color color; /**< [optional] Color used to display objects within the layer. */ bool hasColor; /**< When true, indicates 'color' has been set. */ TmxObjectGroupDrawOrder drawOrder; /**< Indicates the order in which objects in this layer are drawn. */ TmxObject* objects; /**< Array of objects contained by this object layer. */ uint32_t objectsLength; /**< Length of the 'objects' array. */ uint32_t* ySortedObjects; /**< Array of indexes of 'objects' sorted by the objects' y-coordinates. */ } TmxObjectGroup; /** * Model of an element when combined with the 'TmxLayer' model. Defines a layer consisting of one image. */ typedef struct tmx_image_layer { bool repeatX; /**< When true, indicates the image is repeated along the X axis. */ bool repeatY; /**< When true, indicates the image is repeated along the Y axis. */ TmxImage image; /**< Sole image of this layer. */ bool hasImage; /**< When true, indicates 'image' has been set. Should always be true. */ } TmxImageLayer; struct tmx_layer; /* Forward declaration of the following type. Contains children of the same type. */ /** * Model of multiple layer elements: , , , or . Defines a layer with attributes * common to all, more-specific layer types. The more-specific attributes */ typedef struct tmx_layer { TmxLayerType type; /**< The specific layer type indicating which associated layer ('exact') has mspecific values. */ uint32_t id; /**< Unique integer ID of the layer. */ char* name; /**< Name of the layer. */ char* classString; /**< [optional] Class of the layer. If unused, defaults to an empty string. */ bool visible; /**< When true, indicates the layer and its children will be drawn. */ double opacity; /**< Opacity of the layer and its children where 0.0 means the layer is fully transparent. */ Color tintColor; /**< [optional] Tint color applied to the layer and its children. */ bool hasTintColor; /**< When true, indicates 'tintColor' has been set. */ int32_t offsetX; /**< Horizontal offset of the layer and its children in pixels. */ int32_t offsetY; /**< Vertical offset of the layer and its children in pixels. */ double parallaxX; /**< Horizontal parallax factor. 1.0 means the layers position on the screen changes at the same rate as the camera. 0.0 means the layer will not move with the camera. */ double parallaxY; /**< Veritcal parallax factor. 1.0 means the layers position on the screen changes at the same rate as the camera. 0.0 means the layer will not move with the camera. */ TmxProperty* properties; /**< Array of named, typed properties that apply to this layer. */ uint32_t propertiesLength; /**< Length of the 'properties' array. */ struct tmx_layer* layers; /**< [optional] Array of child layers, may be NULL. Only used by group layers. */ uint32_t layersLength; /**< Length of the 'layers' array. */ union layer_type_union { TmxTileLayer tileLayer; TmxObjectGroup objectGroup; TmxImageLayer imageLayer; } exact; /**< Additional layer information specific to a tile, object, or image layer but not groups. */ } TmxLayer; /** * Model of a element. Defines a temporal frame of an animation with the Global ID (GID) of the tile to be * displayed and the duration thereof. */ typedef struct tmx_animation_frame { uint32_t gid; /**< The Global ID (GID) of a tile from the animation's tileset to be drawn for some duration. */ float duration; /**< Duration in milliseconds that the frame should be displayed. */ } TmxAnimationFrame; /** * Model of an element. Defines a series of (tile) frames. */ typedef struct tmx_animation { TmxAnimationFrame* frames; /**< Array of frames. These frames identify tiles and durations to be displayed. */ uint32_t framesLength; /**< Length of the 'frames' array. */ } TmxAnimation; /** * Model of a element within a element. Contains information about tiles that are not or cannot be * implicitly determined from the tileset. */ typedef struct tmx_tileset_tile { uint32_t id; /**< Local ID of the tile within its tileset. This is a factor in but different from its Global ID. */ char* classString; /**< [optional] Class of the tile. If unused, defaults to an empty string. */ int32_t x; /**< X coordinate, in pixels, of the sub-rectangle within the tileset's image to extract. */ int32_t y; /**< Y coordinate, in pixels, of the sub-rectangle within the tileset's image to extract. */ uint32_t width; /**< Width, in pixels, of the sub-rectangle within the tileset's image to extract. */ uint32_t height; /**< Height, in pixels, of the sub-rectangle within the tileset's image to extract. */ TmxImage image; /**< [optional] Image to be used as the tile for "collection of images" tilesets. */ bool hasImage; /**< When true, indicates 'image' is set. */ TmxAnimation animation; /**< [optional] Animation. Lists GIDs to be drawn temporarily and periodically. */ bool hasAnimation; /**< When true, indicates 'animation' is assigned. */ TmxProperty* properties; /**< Array of named, typed properties that apply to this tileset tile. */ uint32_t propertiesLength; /**< Length of the 'properties' array. */ TmxObjectGroup objectGroup; /**< [optional] 0+ objects representing collision information unique to the tile. */ } TmxTilesetTile; /** * Model of a element. Defines an image, or serious of images, from which tiles are drawn along with * information on how to extract areas from within the image and/or how to align them within an object. */ typedef struct tmx_tileset { uint32_t firstGid; /**< First Global ID (GID) of a tile in this tileset. */ uint32_t lastGid; /**< Last Global ID (GID) of a tile in this tileset. */ char* source; /**< [optional] Source of this tileset, may be NULL. Only used for external tilesets. */ char* name; /**< Name of the tileset. */ char* classString; /**< [optional] Class of the tileset. If unused, defaults to an empty string. */ uint32_t tileWidth; /**< Maximum, although typically exact, width of the tiles in this tileset in pixels. */ uint32_t tileHeight; /**< Maximum, although typically exact, height of the tiles in this tileset in pixels. */ uint32_t spacing; /**< Spacing in pixels between tiles in this tileset. */ uint32_t margin; /**< Margin around the tiles in this tileset. */ uint32_t tileCount; /**< Number of tiles in this tileset. Note: 'lastGid' - 'firstGid' is not always 'tileCount.' */ uint32_t columns; /**< Number of tile columsn in this tileset. */ TmxObjectAlignment objectAlignment; /**< Controls the alignment of tiles of this tileset when used as objects. */ int32_t tileOffsetX; /**< Horizontal offset in pixels applied when drawing tiles from this tileset. */ int32_t tileOffsetY; /**< Vertical offset in pixels applied when drawing tiles form this tileset. */ TmxImage image; /**< [optional] Image from which this tilesets tiles are extracted. */ bool hasImage; /**< When true, indicates 'image' is set. */ TmxProperty* properties; /**< Array of named, typed properties that apply to this tileset. */ uint32_t propertiesLength; /**< Length of the 'properties' array. */ TmxTilesetTile* tiles; /**< Array of explicitly-defined tiles within the tileset. */ uint32_t tilesLength; /**< Length of the 'tiles' array. */ } TmxTileset; /** * Contains the information and objects needed to quickly draw a in a raylib application. */ typedef struct tmx_tile { uint32_t gid; /**< Global ID (GID) unique to the tile, used for lookups. 0 means the tile is effectively unused. */ Rectangle sourceRect; /**< Sub-rectangle within a tileset to extract that is to be drawn. */ Texture2D texture; /**< Texture in VRAM to be used to draw. May be used whole or as a source of a sub-rectangle. */ Vector2 offset; /**< Offset in pixels to be applied to the tile, derived from the tileset. */ TmxAnimation animation; /**< [optional] Animation. Lists GIDs to be drawn temporarily and periodically. */ bool hasAnimation; /**< When true, indicates 'animation' is assigned. */ uint32_t frameIndex; /**< For animations, the current animation frame to draw. */ float frameTime; /**< For animations, an accumulator. The time, in seconds, the current frame has been drawn. */ TmxObjectGroup objectGroup; /**< [optional] 0+ objects representing collision information unique to the tile. */ } TmxTile; /** * Model of a element along with some pre-calculated objects for efficient drawing. */ typedef struct tmx_map { char* fileName; /**< File name of the TMX file with extension. */ TmxOrientation orientation; /**< Map orientation. May be orthogonal, isometric, staggered, or hexagonal. */ TmxRenderOrder renderOrder; /**< Order in which tiles on tile layers are rendered. */ uint32_t width; /**< Width of this map in tiles. */ uint32_t height; /**< Height of htis map in tiles. */ uint32_t tileWidth; /**< Width of a tile in pixels. */ uint32_t tileHeight; /**< Height of a tile in pixels. */ int32_t parallaxOriginX; /**< X coordinate, in pixels, of the parallax origin. */ int32_t parallaxOriginY; /**< Y coordinate, in pixels, of hte parallax origin. */ Color backgroundColor; /**< [optional] Background color to be drawn behind the map with its dimensions. */ bool hasBackgroundColor; /**< When true, indicates 'backgroundColor' is set. */ TmxProperty* properties; /**< Array of named, typed properties that apply to this map. */ uint32_t propertiesLength; /**< Length of the 'properties' array. */ TmxTileset* tilesets; /**< Array of tilesets used by the map. */ uint32_t tilesetsLength; /**< Length of the 'tilesets' array. */ TmxLayer* layers; /**< Array of layers and potential child layers that make up this map. */ uint32_t layersLength; /**< Length of the 'layers' array. */ TmxTile* gidsToTiles; /**< Array of pre-calculated tile metadata with all the values needed to quickly draw a tile given its GID. Allocated such that gidsToTiles[1] returns the data of tile GID 1. */ uint32_t gidsToTilesLength; /**< Length of the 'gidsToTiles' array. */ } TmxMap; /** * Given a path to TMX document, parse it and create an equivalent model that can be, among other uses, quickly drawn. * This function allocates memory and loads textures into VRAM. To clean up, use UnloadTMX(). * * @param fileName File name and/or path referencing a TMX document on disk to be loaded. * @return A model of the map as defined by the given TMX document, or NULL if loading failed for any reason. */ RAYTMX_DEC TmxMap* LoadTMX(const char* fileName); /** * Unload a given map model by freeing memory allocations and unloading textures. In other words, free the resources * reserved by LoadTMX(). * * @param map A previously-loaded map model to be freed/unloaded. */ RAYTMX_DEC void UnloadTMX(TmxMap* map); /** * Draw the entirety of the given map at the given position. * When a camera is also passed to this function, parallaxed scrolling can be applied to layers with parallax factors * that are not 1.0 and the screen's surface can be known allowing for occlusion culling and the performance gains that * come with it. * The given tint is applied to map and its layers. When layers have their own tints, the two colors are combined. If no * tint is needed, passing WHITE effectively means no tint is applied. * * @param map A loaded map model to be drawn in whole at the given coordinates. * @param camera [optional] Camera2D to be used for parallax and/or occlusion. Required for parallax. 'viewport' takes * priority for occlusion. * @param viewport [optional] Region drawn to. Used for occlusion. Only tiles, objects, etc. in this region are drawn. * @param posX X coordinate at which to draw the map. This corresponds to the top-left corner of the map. * @param posY Y coordinate at which to draw the map. This corresponds to the top-left corner of the map. * @param tint A tint to be applied to the map and its layers. This tint is combined with any individual layer tints. */ RAYTMX_DEC void DrawTMX(const TmxMap* map, const Camera2D* camera, const Rectangle* viewport, int posX, int posY, Color tint); /** * Draw the given layers at the given position. * When a camera is also passed to this function, parallaxed scrolling can be applied to layers with parallax factors * that are not 1.0 and the screen's surface can be known allowing for occlusion culling and the performance gains that * come with it. * The given tint is applied to the layers. When layers have their own tints, the two colors are combined. If no tint is * needed, passing WHITE effectively means no tint is applied. * * @param map A loaded map model whose layers are to be drawn. * @param camera [optional] Camera2D to be used for parallax and/or occlusion. Required for parallax. 'viewport' takes * priority for occlusion. * @param viewport [optional] Region drawn to. Used for occlusion. Only tiles, objects, etc. in this region are drawn. * @param layers An array of select layers to be drawn. * @param layersLength Length of the given array of layers. * @param posX X coordinate at which to draw the layers. This corresponds to the top-left corner of the layers. * @param posY Y coordinate at which to draw the layers. This corresponds to the top-left corner of the layers. * @param tint A tint to be applied to the layers. This tint is combined with any individual layer tints. */ RAYTMX_DEC void DrawTMXLayers(const TmxMap* map, const Camera2D* camera, const Rectangle* viewport, const TmxLayer* layers, uint32_t layersLength, int posX, int posY, Color tint); /** * Progress the animations of the given map in real-time. This is intended to be called once per frame, or once per * BeginDrawing() an EndDrawing() call. If called more or less frequently, animation speeds will be affected. * * @param map A loaded map model to be animated. */ RAYTMX_DEC void AnimateTMX(TmxMap* map); /** * Check for collisions between two objects of arbitrary type. Objects that are not primitive shapes, namely text and * tiles, are treated as rectangles. * * @param object1 A TMX to be checked for a collision. * @param object2 Another TMX to be checked for a collision. * @return True if the given objects collide with one another, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXObjects(TmxObject object1, TmxObject object2); /** * Check for collisions between the given tile or group layers and the given rectangle. The tiles must have collision * information created with the Tiled Collision Editor. * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * @param map A loaded map model containing the given layers. * @param layers An array of select tile or group layers to be checked for collisions. * @param layersLength Length of the given array of layers. * @param rec The rectangle to perform collision checks on. * @param outputObject Output parameter assigned with the object the rectangle collided with. NULL if not wanted. * @return True if the given rectangle collides with any tile in the given layers, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXTileLayersRec(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Rectangle rec, TmxObject* outputObject); /** * Check for collisions between the given tile or group layers and the given circle. The tiles must have collision * information created with the Tiled Collision Editor. * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * @param map A loaded map model containing the given layers. * @param layers An array of select tile or group layers to be checked for collisions. * @param layersLength Length of the given array of layers. * @param center The center point of the circle. * @param radius The radius of the circle. * @param outputObject Output parameter assigned with the object the circle collided with. NULL if not wanted. * @return True if the given circle collides with any tile in the given layers, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXTileLayersCircle(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Vector2 center, float radius, TmxObject* outputObject); /** * Check for collisions between the given tile or group layers and the given point. The tiles must have collision * information created with the Tiled Collision Editor. * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * @param map A loaded map model containing the given layers. * @param layers An array of select tile or group layers to be checked for collisions. * @param layersLength Length of the given array of layers. * @param point The point to perform collision checks on. * @param outputObject Output parameter assigned with the object the point collided with. NULL if not wanted. * @return True if the given point collides with any tile in the given layers, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXTileLayersPoint(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Vector2 point, TmxObject* outputObject); /** * Check for collisions between the given tile or group layers and the given polygon. The tiles must have collision * information created with the Tiled Collision Editor. * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * This function calculates the Axis-Aligned Bounding Box (AABB) of the polygon each time it's called. If the polygon's * AABB is known, CheckCollisionTMXLayersPolyEx() can be used for better performance. * * @param map A loaded map model containing the given layers. * @param layers An array of select tile or group layers to be checked for collisions. * @param layersLength Length of the given array of layers. * @param points An array of vertices defining the polygon. No repeats. * @param pointCount The length of the array of vertices. * @param outputObject Output parameter assigned with the object the polygon collided with. NULL if not wanted. * @return True if the given polygon collides with any tile in the given layers, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXLayersPoly(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Vector2* points, int pointCount, TmxObject* outputObject); /** * Check for collisions between the given tile or group layers and the given polygon with the given Axis-Aligned * Bounding Box (AABB). The tiles must have collision information created with the Tiled Collision Editor. * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * @param map A loaded map model containing the given layers. * @param layers An array of select tile or group layers to be checked for collisions. * @param layersLength Length of the given array of layers. * @param points An array of vertices defining the polygon. No repeats. * @param pointCount The length of the array of vertices. * @param aabb Bounding box of the polygon. Used for quicker, broad collision checks. * @param outputObject Output parameter assigned with the object the polygon collided with. NULL if not wanted. * @return True if the given polygon collides with any tile in the given layers, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXLayersPolyEx(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Vector2* points, int pointCount, Rectangle aabb, TmxObject* outputObject); /** * Check for collisions between the given object group, with 0+ objects of arbitrary shape, and the given rectangle. * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * @param group The object group whose 0+ objects will be checked for collisions. * @param rec The rectangle to perform collision checks on. * @param outputObject Output parameter assigned with the object the rectangle collided with. NULL if not wanted. * @return True if the given rectangle collides with any object in the object group, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXObjectGroupRec(TmxObjectGroup group, Rectangle rec, TmxObject* outputObject); /** * Check for collisions between the given object group, with 0+ objects of arbitrary shape, and the given circle. * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * @param group The object group whose 0+ objects will be checked for collisions. * @param center The center point of the circle. * @param radius The radius of the circle. * @param outputObject Output parameter assigned with the object the circle collided with. NULL if not wanted. * @return True if the given circle collides with any object in the object group, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXObjectGroupCircle(TmxObjectGroup group, Vector2 center, float radius, TmxObject* outputObject); /** * Check for collisions between the given object group, with 0+ objects of arbitrary shape, and the given point. * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * @param group The object group whose 0+ objects will be checked for collisions. * @param point The point to perform collision checks on. * @param outputObject Output parameter assigned with the object the point collided with. NULL if not wanted. * @return True if the given point collides with any object in the object group, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXObjectGroupPoint(TmxObjectGroup group, Vector2 point, TmxObject* outputObject); /** * Check for collisions between the given object group, with 0+ objects of arbitrary shape, and the given polygon. * This function calculates the Axis-Aligned Bounding Box (AABB) of the polygon each time it's called. If the polygon's * AABB is known, CheckCollisionTMXObjectGroupPolyEx() can be used for better performance. * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * @param group The object group whose 0+ objects will be checked for collisions. * @param points An array of vertices defining the polygon. No repeats. * @param pointCount The length of the array of vertices. * @param outputObject Output parameter assigned with the object the polygon collided with. NULL if not wanted. * @return True if the given polygon collides with any object in the object group, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXObjectGroupPoly(TmxObjectGroup group, Vector2* points, int pointCount, TmxObject* outputObject); /** * Check for collisions between the given object group, with 0+ objects of arbitrary shape, and the given polygon with * the given Axis-Aligned Bound Box (AABB). * Note: This function assumes the map is positioned at (0, 0). If the map is drawn with an offset, normalize. * * @param group The object group whose 0+ objects will be checked for collisions. * @param points An array of vertices defining the polygon. No repeats. * @param pointCount The length of the array of vertices. * @param aabb Bounding box of the polygon. Used for quicker, broad collision checks. * @param outputObject Output parameter assigned with the object the polygon collided with. NULL if not wanted. * @return True if the given polygon collides with any object in the object group, or false if there is no collision. */ RAYTMX_DEC bool CheckCollisionTMXObjectGroupPolyEx(TmxObjectGroup group, Vector2* points, int pointCount, Rectangle aabb, TmxObject* outputObject); /** * Set a custom callback in place of raylib's LoadTexture(). The callback must return a Texture2D and take a const char* * as the sole parameter. To unset, pass NULL to this function. * * @param callback A function pointer with a "Texture2D CustLoadTexture(const char* fileName)" signature, or NULL if * unsetting the custom callback. */ RAYTMX_DEC void SetLoadTextureTMX(LoadTextureCallback callback); /** * Log properties of the given map as a formatted string. * SetTraceLogFlagsTMX() may be used to exclude select information. * * @param logLevel The level/severity with which to log the string (e.g. LOG_DEBUG, LOG_INFO, etc.). * @param map A loaded map to be logged. */ RAYTMX_DEC void TraceLogTMX(int logLevel, const TmxMap* map); /** * Globally set logging options for TraceLogTMX() allowing for select types of information to be excluded. * The flags used by this function are defined in the tmx_log_flags enumeration. * * @param logFlags Logically OR'd bit flags to be applied to all logging following this call. */ RAYTMX_DEC void SetTraceLogFlagsTMX(int logFlags); #ifdef __cplusplus } #endif /* __cplusplus */ #ifdef RAYTMX_IMPLEMENTATION #ifndef HOXML_IMPLEMENTATION #define HOXML_IMPLEMENTATION #endif #include "hoxml.h" /******************/ /* Implementation */ #define TMX_LINE_THICKNESS 3.0f /* Thickness, in pixels, that outlines of specific objects are drawn with */ /* Bit flags that GIDs may be masked with in order to indicate transformations for individual tiles */ enum tmx_flip_flags { FLIP_FLAG_HORIZONTAL = 0x80000000, FLIP_FLAG_VERTICAL = 0x40000000, FLIP_FLAG_DIAGONAL = 0x20000000, FLIP_FLAG_ROTATE_120 = 0x10000000 }; typedef enum raytmx_document_format { FORMAT_TMX = 0, /* Tilemap with tilesets, layers, etc. */ FORMAT_TSX, /* External tilesets */ FORMAT_TX /* Object templates */ } RaytmxDocumentFormat; typedef struct raytmx_external_tileset { TmxTileset tileset; bool isSuccess; /* 'isSuccess' is true when the external tileset was successfully loaded */ } RaytmxExternalTileset; typedef struct raytmx_object_template { TmxTileset tileset; TmxObject object; bool isSuccess, hasTileset; /* 'isSuccess' is true when the object template was successfully loaded */ } RaytmxObjectTemplate; struct raytmx_cached_texture; /* Forward declaration */ typedef struct raytmx_cached_texture { char* fileName; Texture2D texture; struct raytmx_cached_texture* next; } RaytmxCachedTextureNode; /* Associates a file name with a Texture2D allowing for the reuse of textures in VRAM */ struct raytmx_cached_template; /* Forward declaration */ typedef struct raytmx_cached_template { char* fileName; RaytmxObjectTemplate objectTemplate; struct raytmx_cached_template* next; } RaytmxCachedTemplateNode; /* Associates a file name with an object template */ struct raytmx_property_node; /* Forward declaration */ typedef struct raytmx_property_node { TmxProperty property; struct raytmx_property_node* next; } RaytmxPropertyNode; struct raytmx_tileset_node; /* Forward declaration */ typedef struct raytmx_tileset_node { TmxTileset tileset; struct raytmx_tileset_node* next; } RaytmxTilesetNode; struct raytmx_tileset_tile_node; /* Forward declaration */ typedef struct raytmx_tileset_tile_node { TmxTilesetTile tile; struct raytmx_tileset_tile_node* next; } RaytmxTilesetTileNode; struct raytmx_animation_frame_node; /* Forward declaration */ typedef struct raytmx_animation_frame_node { TmxAnimationFrame frame; struct raytmx_animation_frame_node* next; } RaytmxAnimationFrameNode; struct raytmx_layer_node; /* Forward declaration */ typedef struct raytmx_layer_node { TmxLayer layer; uint32_t childrenLength; struct raytmx_layer_node *next, *parent, *childrenRoot, *childrenTail; } RaytmxLayerNode; struct raytmx_tile_layer_tile_node; /* Forward declaration */ typedef struct raytmx_tile_layer_tile_node { uint32_t gid; struct raytmx_tile_layer_tile_node* next; } RaytmxTileLayerTileNode; struct raytmx_object_node; /* Forward declaration */ typedef struct raytmx_object_node { TmxObject object; struct raytmx_object_node* next; } RaytmxObjectNode; struct raytmx_object_sorting_node; /* Forward declaration */ typedef struct raytmx_object_sorting_node { double y; uint32_t index; struct raytmx_object_sorting_node* next; } RaytmxObjectSortingNode; struct raytmx_poly_point_node; /* Forward declaration */ typedef struct raytmx_poly_point_node { Vector2 point; struct raytmx_poly_point_node* next; } RaytmxPolyPointNode; struct raytmx_text_line_node; /* Forward declaration */ typedef struct raytmx_text_line_node { TmxTextLine line; struct raytmx_text_line_node* next; } RaytmxTextLineNode; typedef struct raytmx_state { RaytmxDocumentFormat format; char documentDirectory[512]; bool isSuccess; /* Variables intended for TMX (map) parsing */ RaytmxCachedTextureNode* texturesRoot; RaytmxCachedTemplateNode* templatesRoot; TmxOrientation mapOrientation; TmxRenderOrder mapRenderOrder; uint32_t mapWidth, mapHeight, mapTileWidth, mapTileHeight, mapPropertiesLength; int32_t mapParallaxOriginX, mapParallaxOriginY; Color mapBackgroundColor; bool mapHasBackgroundColor; TmxProperty* mapProperties; /* These variables, when not NULL, are assigned to the current element(s) being parsed */ TmxProperty* property; TmxTileset* tileset; TmxImage* image; TmxTilesetTile* tilesetTile; TmxAnimationFrame* animationFrame; /* TmxWangSet* wangSet; */ /* TODO: Wang sets. Low priority. */ /* TmxWangColor* wangColor; */ /* TODO: Wang sets. Low priority. */ TmxLayer* layer; TmxTileLayer* tileLayer; TmxObjectGroup* objectGroup; TmxImageLayer* imageLayer; TmxObject* object; /* These variables are linked lists containing various elements where an arbitrary amount are allowed, such as */ /* 1+ elements in an , that will be copied to arrays of known sizes later on */ RaytmxPropertyNode *propertiesRoot, *propertiesTail; RaytmxTilesetNode *tilesetsRoot, *tilesetsTail; RaytmxTilesetTileNode *tilesetTilesRoot, *tilesetTilesTail; RaytmxAnimationFrameNode *animationFramesRoot, *animationFramesTail; RaytmxLayerNode *layersRoot, *layersTail, *groupNode; RaytmxTileLayerTileNode *layerTilesRoot, *layerTilesTail; RaytmxObjectNode *objectsRoot, *objectsTail; uint32_t tilesetsLength, tilesetTilesLength, animationFramesLength, propertiesLength, layersLength, layerTilesLength, objectsLength, propertiesDepth; } RaytmxState; /* Intermediate data used internally to parse TMX (map), TSX (tileset), and TX (template) files */ typedef struct raytmx_transform { Vector2 position; Vector2 parallax; Vector2 cameraOffset; } RaytmxTransform; RaytmxExternalTileset LoadTSX(const char* fileName); RaytmxObjectTemplate LoadTX(const char* fileName); void ParseDocument(RaytmxState* raytmxState, const char* fileName); void HandleElementBegin(RaytmxState* raytmxState, hoxml_context_t* hoxmlContext); void HandleAttribute(RaytmxState* raytmxState, hoxml_context_t* hoxmlContext); void HandleElementEnd(RaytmxState* raytmxState, hoxml_context_t* hoxmlContext); void FreeState(RaytmxState* raytmxState); void FreeString(char* str); void FreeTileset(TmxTileset tileset); void FreeProperty(TmxProperty property); void FreeLayer(TmxLayer layer); void FreeObject(TmxObject object); bool IterateTileLayer(const TmxMap* map, const TmxTileLayer* layer, Rectangle viewport, RaytmxTransform transform, uint32_t* rawGid, TmxTile* tile, Rectangle* tileRect); void DrawTMXLayersInternal(const TmxMap* map, const Camera2D* camera, const Rectangle* viewport, const TmxLayer* layers, uint32_t layersLength, RaytmxTransform transform, Color tint); void DrawTMXTileLayer(const TmxMap* map, Rectangle viewport, TmxLayer layer, RaytmxTransform transform, Color tint); void DrawTMXLayerTile(const TmxMap* map, Rectangle viewport, uint32_t rawGid, Rectangle destRect, Color tint); void DrawTMXObjectTile(const TmxMap* map, Rectangle viewport, uint32_t rawGid, RaytmxTransform transform, float width, float height, Color tint); void DrawTMXObjectGroup(const TmxMap* map, Rectangle viewport, TmxLayer layer, RaytmxTransform transform, Color tint); void DrawTMXImageLayer(const TmxMap* map, Rectangle viewport, TmxLayer layer, RaytmxTransform transform, Color tint); bool CheckCollisionTMXTileLayerObject(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, TmxObject object, TmxObject* outputObject); bool CheckCollisionTMXObjectGroupObject(TmxObjectGroup group, TmxObject object, TmxObject* outputObject); void TraceLogTMXTilesets(int logLevel, TmxOrientation orientation, TmxTileset* tilesets, uint32_t tilesetsLength, int numSpaces); void TraceLogTMXProperties(int logLevel, TmxProperty* properties, uint32_t propertiesLength, int numSpaces); void TraceLogTMXLayers(int logLevel, TmxLayer* layers, uint32_t layersLength, int numSpaces); void TraceLogTMXObject(int logLevel, TmxObject object, int numSpaces); void StringCopy(char* destination, const char* source); TmxProperty* AddProperty(RaytmxState* raytmxState); void AddTileLayerTile(RaytmxState* raytmxState, uint32_t gid); TmxTileset* AddTileset(RaytmxState* raytmxState); TmxTilesetTile* AddTilesetTile(RaytmxState* raytmxState); TmxAnimationFrame* AddAnimationFrame(RaytmxState* raytmxState); TmxLayer* AddGenericLayer(RaytmxState* raytmxState, bool isGroup); TmxObject* AddObject(RaytmxState* raytmxState); void AppendLayerTo(TmxMap* map, RaytmxLayerNode* groupNode, RaytmxLayerNode* layersRoot, uint32_t layersLength); RaytmxCachedTextureNode* LoadCachedTexture(RaytmxState* raytmxState, const char* fileName); RaytmxCachedTemplateNode* LoadCachedTemplate(RaytmxState* raytmxState, const char* fileName); Color GetColorFromHexString(const char* hex); uint32_t GetGid(uint32_t rawGid, bool* isFlippedHorizontally, bool* isFlippedVertically, bool* isFlippedDiagonally, bool* isRotatedHexagonal120); void* MemAllocZero(unsigned int size); char* GetDirectoryPath2(const char* filePath); char* JoinPath(const char* prefix, const char* suffix); void StringCopyN(char* destination, const char* source, size_t number); void StringConcatenate(char* destination, const char* source); /**********************************************************************************************************************/ /* Public implementation. */ RAYTMX_DEC TmxMap* LoadTMX(const char* fileName) { RaytmxState raytmxState[1]; memset(raytmxState, 0, sizeof(RaytmxState)); /* Initialize all values to zero, NULL, or an equivalent enum value */ raytmxState->format = FORMAT_TMX; /* Initialize the map object */ TmxMap* map = (TmxMap*)MemAllocZero(sizeof(TmxMap)); /* Do format-agnostic parsing of the document. The state object will be populated with raytmx's models of the */ /* equivalent TMX, TSX, and/or TX elements. */ ParseDocument(raytmxState, fileName); if (!raytmxState->isSuccess) { UnloadTMX(map); return NULL; } /* Copy some top-level map properties */ map->fileName = (char*)MemAllocZero((unsigned int)strlen(fileName) + 1); StringCopy(map->fileName, GetFileName(fileName)); map->orientation = raytmxState->mapOrientation; map->renderOrder = raytmxState->mapRenderOrder; map->width = raytmxState->mapWidth; map->height = raytmxState->mapHeight; map->tileWidth = raytmxState->mapTileWidth; map->tileHeight = raytmxState->mapTileHeight; map->backgroundColor = raytmxState->mapBackgroundColor; map->parallaxOriginX = raytmxState->mapParallaxOriginX; map->parallaxOriginY = raytmxState->mapParallaxOriginY; map->hasBackgroundColor = raytmxState->mapHasBackgroundColor; uint32_t gidsToTilesLength = 0; /* Can also be seen as the last GID */ if (raytmxState->tilesetsRoot != NULL) { /* If there is at least one tileset */ /* Allocate the array of tilesets and zeroize every index */ TmxTileset* tilesets = (TmxTileset*)MemAllocZero(sizeof(TmxTileset) * raytmxState->tilesetsLength); /* Copy the TmxTileset pointers into the array */ RaytmxTilesetNode* tilesetIterator = raytmxState->tilesetsRoot; for (uint32_t i = 0; tilesetIterator != NULL; i++) { TmxTileset tileset = tilesetIterator->tileset; if (tileset.hasImage) { /* If the tileset has a shared image and implicitly defines tiles */ /* These tilesets implicitly have X tiles where X = * . But even */ /* these tilesets may have explicitly defined tiles for things like animations, or anything else. We */ /* need to know the greatest ID of those explicit tiles because they are allowed to have IDs that */ /* exceed the tileset's tile count and this affects global IDs, even in other tilesets. */ uint32_t greatestID = 0; for (uint32_t i = 0; i < tileset.tilesLength; i++) { if (greatestID < tileset.tiles[i].id) greatestID = tileset.tiles[i].id; } /* Determine the last GID, meaning the greatest GID value, from the greatest local ID and tile count */ if (greatestID >= tileset.tileCount) tileset.lastGid = tileset.firstGid + greatestID; else tileset.lastGid = tileset.firstGid + tileset.tileCount - 1; } else if (tileset.tilesLength > 0) /* If the tileset is a "collection of images" with explicit tiles */ tileset.lastGid = tileset.firstGid + tileset.tiles[tileset.tilesLength - 1].id - 1; if (gidsToTilesLength < tileset.lastGid + 1) gidsToTilesLength = tileset.lastGid + 1; /* GIDs start at 1 so the length is the last GID + 1 */ tilesets[i] = tileset; tilesetIterator = tilesetIterator->next; } /* Add the tilesets array to the map */ map->tilesets = tilesets; map->tilesetsLength = raytmxState->tilesetsLength; } else TraceLog(LOG_WARNING, "RAYTMX: The map does not contain any tilesets"); if (raytmxState->layersRoot != NULL) { /* If there is at least one layer within the map */ /* Due to the existence of layers, layers can have children of multiple generations. To form the */ /* resulting tree-like structure, recursion is used. */ AppendLayerTo(map, NULL, raytmxState->layersRoot, raytmxState->layersLength); } else TraceLog(LOG_WARNING, "RAYTMX: The map does not contain any layers"); if (gidsToTilesLength > 0) { TmxTile* gidsToTiles = (TmxTile*)MemAllocZero(sizeof(TmxTile) * gidsToTilesLength); for (uint32_t i = 0; i < map->tilesetsLength; i++) { TmxTileset* tileset = &map->tilesets[i]; if (tileset->hasImage) { /* If the tileset has a shared image (i.e. not a "collection of images") */ /* First, iterate through the explicit tiles. These are explicitly defined with elements and */ /* are used to, among other things, provide animations and specific source rectangles. Note: Their */ /* IDs may exceed the tileset's tile count. */ for (uint32_t j = 0; j < tileset->tilesLength; j++) { TmxTilesetTile tilesetTile = tileset->tiles[j]; uint32_t gid = tileset->firstGid + tilesetTile.id; if (tilesetTile.hasAnimation) { /* If the tile is meta, pointing to a series of other tiles */ gidsToTiles[gid].hasAnimation = true; gidsToTiles[gid].animation = tilesetTile.animation; /* Frames' tile (G)IDs are initially set with local values. Now that all tilesets are known */ /* and this tileset's first global ID is available, update the ID to be global. */ for (uint32_t k = 0; k < gidsToTiles[gid].animation.framesLength; k++) gidsToTiles[gid].animation.frames[k].gid += tileset->firstGid; } if (tilesetTile.x != 0 || tilesetTile.y != 0 || tilesetTile.width != 0 || tilesetTile.height != 0) { /* This tile directly tells us the area within the tileset's image to use when drawing, */ /* overriding the implicit dimensions derived from the map's tile width and height. */ gidsToTiles[gid].sourceRect.x = (float)tilesetTile.x; gidsToTiles[gid].sourceRect.y = (float)tilesetTile.y; gidsToTiles[gid].sourceRect.width = (float)tilesetTile.width; gidsToTiles[gid].sourceRect.height = (float)tilesetTile.height; } /* Tiles may have child object groups. These objects are a form of collision information. The */ /* object group may be empty or may have objects. A simple assignment covers both. */ gidsToTiles[gid].objectGroup = tilesetTile.objectGroup; gidsToTiles[gid].gid = gid; /* Tell the tile its GID */ } /* for (uint32_t j = 0; j < tileset->tilesLength; j++) */ /* Second, loop through the implicit tiles. These are inferred from knowing the dimensions of the */ /* tileset's image, dimensiosn of tiles, and the (right-down) order of tiles within the image. */ for (uint32_t id = 0; id < tileset->tileCount; id++) { uint32_t gid = id + tileset->firstGid, x = id % tileset->columns, y = id / tileset->columns; gidsToTiles[gid].gid = gid; /* Tell the tile its GID */ /* If that source renctangle within the image was NOT explicitly defined. */ /* Note: Float comparisons like this are typically unreliable but the GIDs-to-tiles array is */ /* initialized with zeroes making this accurate. */ if (gidsToTiles[gid].sourceRect.x == 0.0f && gidsToTiles[gid].sourceRect.y == 0.0f && gidsToTiles[gid].sourceRect.width == 0.0f && gidsToTiles[gid].sourceRect.height == 0.0f) { /* Calculate the area within the texture to be drawn from contextual information */ gidsToTiles[gid].sourceRect.x = (float)(tileset->margin + (x * tileset->tileWidth) + (x * tileset->spacing)); gidsToTiles[gid].sourceRect.y = (float)(tileset->margin + (y * tileset->tileHeight) + (y * tileset->spacing)); gidsToTiles[gid].sourceRect.width = (float)tileset->tileWidth; gidsToTiles[gid].sourceRect.height = (float)tileset->tileHeight; } gidsToTiles[gid].texture = tileset->image.texture; gidsToTiles[gid].offset.x = (float)tileset->tileOffsetX; gidsToTiles[gid].offset.y = (float)tileset->tileOffsetY; } /* for (uint32_t id = 0; id < tileset->tileCount; id++) */ } else { /* If the tileset is a collection of images where each tile has its own image */ for (uint32_t j = 0; j < tileset->tilesLength; j++) { TmxTilesetTile tilesetTile = tileset->tiles[j]; if (!tilesetTile.hasImage) { TraceLog(LOG_WARNING, "RAYTMX: Skipping tile %d of image collection tileset \"%s\" because " "it has no image", tilesetTile.id, tileset->name); continue; } int32_t gid = tileset->firstGid + tilesetTile.id; gidsToTiles[gid].gid = gid; gidsToTiles[gid].sourceRect.x = (float)tilesetTile.x; /* Defaults to and probably is zero */ gidsToTiles[gid].sourceRect.y = (float)tilesetTile.y; /* Defaults to and probably is zero */ if (tilesetTile.width != tilesetTile.image.width) gidsToTiles[gid].sourceRect.width = (float)tilesetTile.width; else gidsToTiles[gid].sourceRect.width = (float)tilesetTile.image.width; if (tilesetTile.height != tilesetTile.image.height) gidsToTiles[gid].sourceRect.height = (float)tilesetTile.height; else gidsToTiles[gid].sourceRect.height = (float)tilesetTile.image.height; gidsToTiles[gid].texture = tilesetTile.image.texture; } } } map->gidsToTiles = gidsToTiles; map->gidsToTilesLength = gidsToTilesLength; } /* gidsToTilesLength > 0 */ /* Free the linked lists and zeroize related values */ FreeState(raytmxState); return map; } RAYTMX_DEC void UnloadTMX(TmxMap* map) { if (map == NULL) return; if (map->fileName != NULL) MemFree(map->fileName); if (map->properties != NULL) { for (uint32_t i = 0; i < map->propertiesLength; i++) FreeProperty(map->properties[i]); MemFree(map->properties); } if (map->tilesets != NULL) { for (uint32_t i = 0; i < map->tilesetsLength; i++) FreeTileset(map->tilesets[i]); MemFree(map->tilesets); } if (map->layers != NULL) { for (uint32_t i = 0; i < map->layersLength; i++) FreeLayer(map->layers[i]); MemFree(map->layers); } if (map->gidsToTiles != NULL) MemFree(map->gidsToTiles); MemFree(map); } RAYTMX_DEC void DrawTMX(const TmxMap* map, const Camera2D* camera, const Rectangle* viewport, int posX, int posY, Color tint) { if (map == NULL) return; if (map->hasBackgroundColor) { Rectangle backgroundRect; if (viewport != NULL) backgroundRect = *viewport; else { backgroundRect.x = (float)posX; backgroundRect.y = (float)posY; backgroundRect.width = (float)(map->width * map->tileWidth); backgroundRect.height = (float)(map->height * map->tileHeight); } DrawRectangleRec(/* rec: */ backgroundRect, /* color: */ map->backgroundColor); } DrawTMXLayers(map, camera, viewport, map->layers, map->layersLength, posX, posY, tint); } RAYTMX_DEC void DrawTMXLayers(const TmxMap* map, const Camera2D* camera, const Rectangle* viewport, const TmxLayer* layers, uint32_t layersLength, int posX, int posY, Color tint) { /* Pack some position and related information into an object to pass to various functions. At a minimum, this */ /* will determine the position each layer is drawn at. With a camera, this will also be used for parallax. */ RaytmxTransform transform = { .position = (Vector2){ .x = (float)posX, .y = (float)posY }, .parallax = (Vector2){ .x = 1.0f, .y = 1.0f }, .cameraOffset = (Vector2){ .x = 0.0, .y = 0.0f } }; if (map != NULL && camera != NULL) /* If the map, with its parallax origin, and a camera are available */ { /* Calculate the camera's offset, or distance, from the parallax origin. This origin is the reference point */ /* for parallax scrolling and this offset determines how much a layer will scroll as the camera moves. */ transform.cameraOffset = (Vector2) { .x = camera->target.x - map->parallaxOriginX, .y = camera->target.y - map->parallaxOriginY }; } DrawTMXLayersInternal(map, camera, viewport, layers, layersLength, transform, tint); } RAYTMX_DEC void AnimateTMX(TmxMap* map) { if (map == NULL) return; float dt = GetFrameTime(); /* Returns the duration, in seconds, of the last frame drawn */ /* Iterate through the tiles, searching for those that are animations */ for (uint32_t gid = 0; gid < map->gidsToTilesLength; gid++) { TmxTile* tile = &map->gidsToTiles[gid]; /* A pointer is used in case the frame time needs to be reassigned */ /* If the GID maps to a valid tile, that tile is an animation, and the bounds check passes */ if (tile->gid > 0 && tile->hasAnimation && tile->frameIndex < tile->animation.framesLength) { tile->frameTime += dt; /* If the current frame has been displayed for its whole duration, or longer */ if (tile->frameTime > tile->animation.frames[tile->frameIndex].duration) { tile->frameTime -= tile->animation.frames[tile->frameIndex].duration; /* Increment the frame index to display the next one... */ tile->frameIndex += 1; /* ...unless the last frame was "last" in both senses */ if (tile->frameIndex == tile->animation.framesLength) tile->frameIndex = 0; /* Wrap around to the first frame */ } } } } /** * Helper function that creates a TmxObject equivalent to the given rectangle. * * @param rec A rectangle as raylib's Rectangle type. * @return An equivalent TmxObject. */ TmxObject CreateRectangularTMXObject(Rectangle rec) { TmxObject recAsObject; memset(&recAsObject, 0, sizeof(TmxObject)); /* Zero initialize */ recAsObject.type = OBJECT_TYPE_RECTANGLE; recAsObject.x = (double)rec.x; recAsObject.y = (double)rec.y; recAsObject.width = (double)rec.width; recAsObject.height = (double)rec.height; recAsObject.aabb = rec; return recAsObject; } RAYTMX_DEC bool CheckCollisionTMXTileLayersRec(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Rectangle rec, TmxObject* outputObject) { if (map == NULL || layers == NULL || layersLength == 0) return false; /* Check the rectangle against objects associated with tiles in the layers for collisions */ return CheckCollisionTMXTileLayerObject(map, layers, layersLength, CreateRectangularTMXObject(rec), outputObject); } /** * Helper function that creates a TmxObject equivalent to the given circle. * * @param center The center point of the circle. * @param radius The radius of the circle. * @return An equivalent TmxObject. */ TmxObject CreateCircularTMXObject(Vector2 center, float radius) { TmxObject circleAsObject; memset(&circleAsObject, 0, sizeof(TmxObject)); /* Zero initialize */ circleAsObject.type = OBJECT_TYPE_ELLIPSE; circleAsObject.x = (double)(center.x - radius); circleAsObject.y = (double)(center.y - radius); circleAsObject.width = 2.0 * (double)radius; circleAsObject.height = 2.0 * (double)radius; circleAsObject.aabb.x = center.x - radius; circleAsObject.aabb.y = center.y - radius; circleAsObject.aabb.width = 2.0f * radius; circleAsObject.aabb.height = 2.0f * radius; return circleAsObject; } RAYTMX_DEC bool CheckCollisionTMXTileLayersCircle(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Vector2 center, float radius, TmxObject* outputObject) { if (map == NULL || layers == NULL || layersLength == 0) return false; /* Check the circle against objects associated with tiles in the layers for collisions */ return CheckCollisionTMXTileLayerObject(map, layers, layersLength, CreateCircularTMXObject(center, radius), outputObject); } /** * Helper function that creates a TmxObject equivalent to the given point. * * @param point The point. * @return An equivalent TmxObject. */ TmxObject CreatePointTMXObject(Vector2 point) { TmxObject pointAsObject; memset(&pointAsObject, 0, sizeof(TmxObject)); /* Zero initialize */ pointAsObject.type = OBJECT_TYPE_POINT; pointAsObject.x = (float)point.x; pointAsObject.y = (float)point.y; pointAsObject.aabb.x = (float)point.x; pointAsObject.aabb.y = (float)point.y; return pointAsObject; } RAYTMX_DEC bool CheckCollisionTMXTileLayersPoint(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Vector2 point, TmxObject* outputObject) { if (map == NULL || layers == NULL || layersLength == 0) return false; /* Check the point against objects associated with tiles in the layers for collisions */ return CheckCollisionTMXTileLayerObject(map, layers, layersLength, CreatePointTMXObject(point), outputObject); } /** * Helper function that creates a TmxObject equivalent to the given polygon with the given Axis-Aligned Bounding Box * (AABB). If the AABB should be calculated from the given vertices, pass a rectangle with a zero or negative width or * height. * * @param points An array of vertices defining the polygon. No repeats. * @param pointCount The length of the array of vertices. * @param aabb Bounding box of the polygon. Used for quicker, broad collision checks. * @return An equivalent TmxObject. */ TmxObject CreatePolygonTMXObject(Vector2* points, int pointCount, Rectangle aabb) { /* Create a polygon TMX object to represent the given polygon */ TmxObject polygonAsObject; memset(&polygonAsObject, 0, sizeof(TmxObject)); /* Zero initialize */ polygonAsObject.type = OBJECT_TYPE_POLYGON; if (aabb.width <= 0.0f || aabb.height <= 0.0f) { /* If the AABB wasn't pre-calculated or is just wrong */ /* Calculate the bounding box by searching for minimum and maximum coordinates of the vertices */ float minX = INFINITY, maxX = -INFINITY, minY = INFINITY, maxY = -INFINITY; for (int i = 0; i < pointCount; i++) { Vector2 point = points[i]; if (point.x < minX) minX = point.x; if (point.x > maxX) maxX = point.x; if (point.y < minY) minY = point.y; if (point.y > maxY) maxY = point.y; } aabb.x = minX; aabb.y = minY; aabb.width = maxX - minX; aabb.height = maxY - minY; } /* Polygons' points are relative to the object's position. Because this function takes points with absolute */ /* positions, we'll account for this by making the object's position zero. */ polygonAsObject.x = 0.0; polygonAsObject.y = 0.0; polygonAsObject.width = (double)aabb.width; polygonAsObject.height = (double)aabb.height; polygonAsObject.aabb = aabb; polygonAsObject.points = points; polygonAsObject.pointsLength = pointCount; return polygonAsObject; } RAYTMX_DEC bool CheckCollisionTMXLayersPoly(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Vector2* points, int pointCount, TmxObject* outputObject) { if (map == NULL || layers == NULL || layersLength == 0 || points == NULL || pointCount < 3) return false; /* Check the polygon against objects associated with tiles in the layers for collisions */ return CheckCollisionTMXTileLayerObject(map, layers, layersLength, CreatePolygonTMXObject(points, pointCount, (Rectangle){0.0f}), outputObject); } RAYTMX_DEC bool CheckCollisionTMXLayersPolyEx(const TmxMap* map, const TmxLayer* layers, uint32_t layersLength, Vector2* points, int pointCount, Rectangle aabb, TmxObject* outputObject) { if (map == NULL || layers == NULL || layersLength == 0 || points == NULL || pointCount < 3) return false; /* Check the polygon against objects associated with tiles in the layers for collisions */ return CheckCollisionTMXTileLayerObject(map, layers, layersLength, CreatePolygonTMXObject(points, pointCount, aabb), outputObject); } RAYTMX_DEC bool CheckCollisionTMXObjectGroupRec(TmxObjectGroup group, Rectangle rec, TmxObject* outputObject) { if (group.objectsLength == 0 || rec.width < 0.0f || rec.height < 0.0f) return false; /* Early-out opportunity. These cases would always return false. */ /* Check the rectangle against TMX objects in the group for collisions */ return CheckCollisionTMXObjectGroupObject(group, CreateRectangularTMXObject(rec), outputObject); } RAYTMX_DEC bool CheckCollisionTMXObjectGroupCircle(TmxObjectGroup group, Vector2 center, float radius, TmxObject* outputObject) { if (group.objectsLength == 0 || radius < 0.0f) return false; /* Early-out opportunity. These cases would always return false. */ /* Check the circle against TMX objects in the group for collisions */ return CheckCollisionTMXObjectGroupObject(group, CreateCircularTMXObject(center, radius), outputObject); } RAYTMX_DEC bool CheckCollisionTMXObjectGroupPoint(TmxObjectGroup group, Vector2 point, TmxObject* outputObject) { if (group.objectsLength == 0) return false; /* Early-out opportunity. This case would always return false. */ /* Check the point against TMX objects in the group for collisions */ return CheckCollisionTMXObjectGroupObject(group, CreatePointTMXObject(point), outputObject); } RAYTMX_DEC bool CheckCollisionTMXObjectGroupPoly(TmxObjectGroup group, Vector2* points, int pointCount, TmxObject* outputObject) { if (group.objectsLength == 0 || points == NULL || pointCount < 3) return false; /* Early-out opportunity. These cases would always return false. */ /* Check the polygon TMX object against other TMX objects in the group for collisions */ return CheckCollisionTMXObjectGroupObject(group, CreatePolygonTMXObject(points, pointCount, (Rectangle){0.0f}), outputObject); } RAYTMX_DEC bool CheckCollisionTMXObjectGroupPolyEx(TmxObjectGroup group, Vector2* points, int pointCount, Rectangle aabb, TmxObject* outputObject) { if (group.objectsLength == 0 || points == NULL || pointCount < 3) return false; /* Early-out opportunity. These cases would always return false. */ /* Check the polygon TMX object against other TMX objects in the group for collisions */ return CheckCollisionTMXObjectGroupObject(group, CreatePolygonTMXObject(points, pointCount, aabb), outputObject); } static LoadTextureCallback loadTextureOverride = NULL; RAYTMX_DEC void SetLoadTextureTMX(LoadTextureCallback callback) { loadTextureOverride = callback; } static int tmxLogFlags = 0; RAYTMX_DEC void TraceLogTMX(int logLevel, const TmxMap* map) { if (map == NULL) return; switch (map->orientation) { case ORIENTATION_NONE: TraceLog(logLevel, "orientation: none"); break; case ORIENTATION_ORTHOGONAL: TraceLog(logLevel, "orientation: orthogonal"); break; case ORIENTATION_ISOMETRIC: TraceLog(logLevel, "orientation: isometric"); break; case ORIENTATION_STAGGERED: TraceLog(logLevel, "orientation: staggered"); break; case ORIENTATION_HEXAGONAL: TraceLog(logLevel, "orientation: hexagonal"); break; } switch (map->renderOrder) { case RENDER_ORDER_RIGHT_DOWN: TraceLog(logLevel, "render order: right-down"); break; case RENDER_ORDER_RIGHT_UP: TraceLog(logLevel, "render order: right-up"); break; case RENDER_ORDER_LEFT_DOWN: TraceLog(logLevel, "render order: left-down"); break; case RENDER_ORDER_LEFT_UP: TraceLog(logLevel, "render order: left-up"); break; } TraceLog(logLevel, "width: %u tiles", map->width); TraceLog(logLevel, "height: %u tiles", map->height); TraceLog(logLevel, "tile width: %u pixels", map->tileWidth); TraceLog(logLevel, "tile height: %u pixels", map->tileHeight); TraceLog(logLevel, "parallax origin X: %d pixels", map->parallaxOriginX); TraceLog(logLevel, "parallax origin Y: %d pixels", map->parallaxOriginY); if (map->hasBackgroundColor) TraceLog(logLevel, "background color: 0x%08X", map->backgroundColor); TraceLogTMXTilesets(logLevel, map->orientation, map->tilesets, map->tilesetsLength, 0); TraceLogTMXProperties(logLevel, map->properties, map->propertiesLength, 0); TraceLogTMXLayers(logLevel, map->layers, map->layersLength, 0); } RAYTMX_DEC void SetTraceLogFlagsTMX(int logFlags) { tmxLogFlags = logFlags; } /**********************************************************************************************************************/ /* Private implementation. */ RaytmxExternalTileset LoadTSX(const char* fileName) { RaytmxState raytmxState[1]; memset(raytmxState, 0, sizeof(RaytmxState)); /* Initialize all values to zero, NULL, or an equivalent enum value */ raytmxState->format = FORMAT_TSX; /* Initialize an external tileset object */ RaytmxExternalTileset externalTileset; memset(&externalTileset, 0, sizeof(RaytmxExternalTileset)); /* Do format-agnostic parsing of the document. The state object will be populated with raytmx's models of the */ /* equivalent TMX, TSX, and/or TX elements. */ ParseDocument(raytmxState, fileName); if (!raytmxState->isSuccess) return externalTileset; /* Will have 'isSuccess' set to false to indicate a failure */ if (raytmxState->tilesetsRoot != NULL) { /* If there is at least one tileset */ /* Copy the root tileset so it can be returned */ externalTileset.tileset = raytmxState->tilesetsRoot->tileset; externalTileset.isSuccess = true; /* TSX files should have only one tileset so any others will be freed/unloaded immediately */ RaytmxTilesetNode* tilesetIterator = raytmxState->tilesetsRoot->next; while (tilesetIterator != NULL) { FreeTileset(tilesetIterator->tileset); tilesetIterator = tilesetIterator->next; } } else TraceLog(LOG_WARNING, "RAYTMX: TSX file (external tileset) \"%s\" does not contain any tilesets", fileName); /* Free the linked lists and zeroize related values */ FreeState(raytmxState); return externalTileset; } RaytmxObjectTemplate LoadTX(const char* fileName) { RaytmxState raytmxState[1]; memset(raytmxState, 0, sizeof(RaytmxState)); /* Initialize all values to zero, NULL, or an equivalent enum value */ raytmxState->format = FORMAT_TX; /* Initialize an object template object */ RaytmxObjectTemplate objectTemplate; memset(&objectTemplate, 0, sizeof(RaytmxObjectTemplate)); /* Do format-agnostic parsing of the document. The state object will be populated with raytmx's models of the */ /* equivalent TMX, TSX, and/or TX elements. */ ParseDocument(raytmxState, fileName); if (!raytmxState->isSuccess) return objectTemplate; /* Will have 'isSuccess' set to false to indicate a failure */ if (raytmxState->objectsRoot != NULL) { /* If there is at least one object */ /* Copy the root object so it can be returned */ objectTemplate.object = raytmxState->objectsRoot->object; objectTemplate.isSuccess = true; /* TX files should have only one object so any others will be freed/unloaded immediately */ RaytmxObjectNode* objectIterator = raytmxState->objectsRoot->next; while (objectIterator != NULL) { FreeObject(objectIterator->object); objectIterator = objectIterator->next; } } else TraceLog(LOG_WARNING, "RAYTMX: TX file (object template) \"%s\" does not contain any objects", fileName); if (raytmxState->tilesetsRoot != NULL) { /* If there is at least one tileset */ /* Object templates may have a tileset. This is for cases where the object references a tile (i.e. its 'gid' */ /* attribute is set). Copy the root tileset so it can be returned */ objectTemplate.tileset = raytmxState->tilesetsRoot->tileset; objectTemplate.hasTileset = true; /* TX files should have at most one tileset so any others will be freed/unloaded immediately */ RaytmxTilesetNode* tilesetsIterator = raytmxState->tilesetsRoot->next; while (tilesetsIterator != NULL) { FreeTileset(tilesetsIterator->tileset); tilesetsIterator = tilesetsIterator->next; } } /* Free the linked lists and zeroize related values */ FreeState(raytmxState); return objectTemplate; } void ParseDocument(RaytmxState* raytmxState, const char* fileName) { char* content = LoadFileText(fileName); if (content == NULL) { TraceLog(LOG_ERROR, "RAYTMX: Failed to open \"%s\"", fileName); return; } size_t contentLength = strlen(content); StringCopy(raytmxState->documentDirectory, GetDirectoryPath2(fileName)); hoxml_context_t hoxmlContext[1]; size_t bufferLength = contentLength; char* buffer = (char*)MemAlloc((unsigned int)bufferLength); hoxml_init(hoxmlContext, buffer, bufferLength); hoxml_code_t code; while ((code = hoxml_parse(hoxmlContext, content, contentLength)) != HOXML_END_OF_DOCUMENT) { if (code > HOXML_END_OF_DOCUMENT) { /* If there's information about an element, attribute, whatever */ switch (code) { case HOXML_ELEMENT_BEGIN: HandleElementBegin(raytmxState, hoxmlContext); break; case HOXML_ELEMENT_END: HandleElementEnd(raytmxState, hoxmlContext); break; case HOXML_ATTRIBUTE: HandleAttribute(raytmxState, hoxmlContext); case HOXML_PROCESSING_INSTRUCTION_BEGIN: break; case HOXML_PROCESSING_INSTRUCTION_END: break; default: break; /* No other cases to handle but compilers like to complain */ } } else if (code < HOXML_END_OF_DOCUMENT) { /* If there was an error, recoverable or not */ switch (code) { case HOXML_ERROR_INSUFFICIENT_MEMORY: { /* This is one we can recover from by expanding the buffer. In this case, it will be doubled. */ TraceLog(LOG_DEBUG, "RAYTMX: Allocating a new XML parsing buffer due to insufficient memory"); bufferLength *= 2; char* newBuffer = (char*)MemAlloc((unsigned int)bufferLength); hoxml_realloc(hoxmlContext, newBuffer, bufferLength); MemFree(buffer); buffer = newBuffer; continue; } case HOXML_ERROR_UNEXPECTED_EOF: TraceLog(LOG_ERROR, "RAYTMX: Unexpected end of file"); break; case HOXML_ERROR_SYNTAX: TraceLog(LOG_ERROR, "RAYTMX: Invalid syntax: line %d, column %d", hoxmlContext->line, hoxmlContext->column); break; case HOXML_ERROR_ENCODING: TraceLog(LOG_ERROR, "RAYTMX: Character encoding error: line %d, column %d", hoxmlContext->line, hoxmlContext->column); break; case HOXML_ERROR_TAG_MISMATCH: TraceLog(LOG_ERROR, "RAYTMX: Close tag does not match open tag: line %d, column %d", hoxmlContext->line, hoxmlContext->column); break; case HOXML_ERROR_INVALID_DOCUMENT_TYPE_DECLARATION: case HOXML_ERROR_INVALID_DOCUMENT_DECLARATION: TraceLog(LOG_ERROR, "RAYTMX: Document (type) declaration error: line %d, column %d", hoxmlContext->line, hoxmlContext->column); break; default: break; /* Keep the compiler happy */ } UnloadFileText(content); return; } } UnloadFileText(content); MemFree(buffer); raytmxState->isSuccess = true; } void HandleElementBegin(RaytmxState* raytmxState, hoxml_context_t* hoxmlContext) { if (raytmxState == NULL || hoxmlContext == NULL) return; if (strcmp(hoxmlContext->tag, "map") == 0) ; else if (strcmp(hoxmlContext->tag, "properties") == 0) { /* TMX allows nested properties but they are not (currently?) supported. To avoid memory leaks */ /* depth is tracked. */ raytmxState->propertiesDepth += 1; } else if (strcmp(hoxmlContext->tag, "property") == 0) raytmxState->property = AddProperty(raytmxState); else if (strcmp(hoxmlContext->tag, "tileset") == 0) raytmxState->tileset = AddTileset(raytmxState); else if (strcmp(hoxmlContext->tag, "image") == 0) { /* If any of the elements that may have an image is/are open */ if (raytmxState->tilesetTile != NULL || raytmxState->tileset != NULL || raytmxState->imageLayer != NULL) { /* If the open element already has an image */ /* Note: In all cases, the element can contain at most one */ if ((raytmxState->tilesetTile != NULL && raytmxState->tilesetTile->hasImage) || (raytmxState->tileset != NULL && raytmxState->tileset->hasImage) || (raytmxState->imageLayer != NULL && raytmxState->imageLayer->hasImage)) { TraceLog(LOG_WARNING, "RAYTMX: an element contained multiple images; the image on line %d will be " "dropped", hoxmlContext->line); } else { /* elements can be children of , , or elements */ if (raytmxState->tilesetTile != NULL) { raytmxState->tilesetTile->hasImage = true; raytmxState->image = &raytmxState->tilesetTile->image; } else if (raytmxState->tileset != NULL) { raytmxState->tileset->hasImage = true; raytmxState->image = &raytmxState->tileset->image; } else if (raytmxState->imageLayer != NULL) { raytmxState->imageLayer->hasImage = true; raytmxState->image = &raytmxState->imageLayer->image; } } } } /* strcmp(hoxmlContext->tag, "image") == 0 */ else if (strcmp(hoxmlContext->tag, "tile") == 0) { /* elements can be children of or . They are also not the same element in that they */ /* have entirely different attributes and a tileset's may have children. */ if (raytmxState->tileset != NULL) raytmxState->tilesetTile = AddTilesetTile(raytmxState); /* Layer s are added during attribute handling because they provide a GID attribute and nothing else */ } /* strcmp(hoxmlContext->tag, "tile") == 0 */ else if (strcmp(hoxmlContext->tag, "animation") == 0) { if (raytmxState->tilesetTile != NULL) raytmxState->tilesetTile->hasAnimation = true; } else if (strcmp(hoxmlContext->tag, "frame") == 0) raytmxState->animationFrame = AddAnimationFrame(raytmxState); else if (strcmp(hoxmlContext->tag, "layer") == 0) { /* Allocate a new layer with 'tileLayer' allocated and append it to the current group, if it exists */ raytmxState->layer = AddGenericLayer(raytmxState, /* isGroup: */ false); raytmxState->layer->type = LAYER_TYPE_TILE_LAYER; raytmxState->tileLayer = &raytmxState->layer->exact.tileLayer; } else if (strcmp(hoxmlContext->tag, "objectgroup") == 0) { if (raytmxState->tilesetTile != NULL) { /* If the object group is a child of a , it's collision info */ raytmxState->objectGroup = &raytmxState->tilesetTile->objectGroup; /* Child objects (rectangles, points, ellipses, or polygons) are expected to follow */ } else { /* Allocate a new layer with 'objectGroup' allocated and append it to the current group, if it exists */ raytmxState->layer = AddGenericLayer(raytmxState, /* isGroup: */ false); raytmxState->layer->type = LAYER_TYPE_OBJECT_GROUP; raytmxState->objectGroup = &raytmxState->layer->exact.objectGroup; } } else if (strcmp(hoxmlContext->tag, "object") == 0) { /* elements are typically only allowable as children of s but object templates, TX */ /* files, contain them as children of root