//////////////////////////////////////////////////////////// // // SFML - Simple and Fast Multimedia Library // Copyright (C) 2007-2013 Laurent Gomila (laurent.gom@gmail.com) // // This software is provided 'as-is', without any express or implied warranty. // In no event will the authors be held liable for any damages arising from the use of this software. // // Permission is granted to anyone to use this software for any purpose, // including commercial applications, and to alter it and redistribute it freely, // subject to the following restrictions: // // 1. The origin of this software must not be misrepresented; // you must not claim that you wrote the original software. // If you use this software in a product, an acknowledgment // in the product documentation would be appreciated but is not required. // // 2. Altered source versions must be plainly marked as such, // and must not be misrepresented as being the original software. // // 3. This notice may not be removed or altered from any source distribution. // //////////////////////////////////////////////////////////// #ifndef SFML_SHAPE_H #define SFML_SHAPE_H //////////////////////////////////////////////////////////// // Headers //////////////////////////////////////////////////////////// #include #include #include #include #include #include typedef unsigned int (*sfShapeGetPointCountCallback)(void*); ///< Type of the callback used to get the number of points in a shape typedef sfVector2f (*sfShapeGetPointCallback)(unsigned int, void*); ///< Type of the callback used to get a point of a shape //////////////////////////////////////////////////////////// /// \brief Create a new shape /// /// \param getPointCount Callback that provides the point count of the shape /// \param getPoint Callback that provides the points of the shape /// \param userData Data to pass to the callback functions /// /// \return A new sfShape object /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfShape* sfShape_create(sfShapeGetPointCountCallback getPointCount, sfShapeGetPointCallback getPoint, void* userData); //////////////////////////////////////////////////////////// /// \brief Destroy an existing shape /// /// \param Shape Shape to delete /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_destroy(sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Set the position of a shape /// /// This function completely overwrites the previous position. /// See sfShape_move to apply an offset based on the previous position instead. /// The default position of a circle Shape object is (0, 0). /// /// \param shape Shape object /// \param position New position /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_setPosition(sfShape* shape, sfVector2f position); //////////////////////////////////////////////////////////// /// \brief Set the orientation of a shape /// /// This function completely overwrites the previous rotation. /// See sfShape_rotate to add an angle based on the previous rotation instead. /// The default rotation of a circle Shape object is 0. /// /// \param shape Shape object /// \param angle New rotation, in degrees /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_setRotation(sfShape* shape, float angle); //////////////////////////////////////////////////////////// /// \brief Set the scale factors of a shape /// /// This function completely overwrites the previous scale. /// See sfShape_scale to add a factor based on the previous scale instead. /// The default scale of a circle Shape object is (1, 1). /// /// \param shape Shape object /// \param scale New scale factors /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_setScale(sfShape* shape, sfVector2f scale); //////////////////////////////////////////////////////////// /// \brief Set the local origin of a shape /// /// The origin of an object defines the center point for /// all transformations (position, scale, rotation). /// The coordinates of this point must be relative to the /// top-left corner of the object, and ignore all /// transformations (position, scale, rotation). /// The default origin of a circle Shape object is (0, 0). /// /// \param shape Shape object /// \param origin New origin /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_setOrigin(sfShape* shape, sfVector2f origin); //////////////////////////////////////////////////////////// /// \brief Get the position of a shape /// /// \param shape Shape object /// /// \return Current position /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfVector2f sfShape_getPosition(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the orientation of a shape /// /// The rotation is always in the range [0, 360]. /// /// \param shape Shape object /// /// \return Current rotation, in degrees /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API float sfShape_getRotation(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the current scale of a shape /// /// \param shape Shape object /// /// \return Current scale factors /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfVector2f sfShape_getScale(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the local origin of a shape /// /// \param shape Shape object /// /// \return Current origin /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfVector2f sfShape_getOrigin(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Move a shape by a given offset /// /// This function adds to the current position of the object, /// unlike sfShape_setPosition which overwrites it. /// /// \param shape Shape object /// \param offset Offset /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_move(sfShape* shape, sfVector2f offset); //////////////////////////////////////////////////////////// /// \brief Rotate a shape /// /// This function adds to the current rotation of the object, /// unlike sfShape_setRotation which overwrites it. /// /// \param shape Shape object /// \param angle Angle of rotation, in degrees /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_rotate(sfShape* shape, float angle); //////////////////////////////////////////////////////////// /// \brief Scale a shape /// /// This function multiplies the current scale of the object, /// unlike sfShape_setScale which overwrites it. /// /// \param shape Shape object /// \param factors Scale factors /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_scale(sfShape* shape, sfVector2f factors); //////////////////////////////////////////////////////////// /// \brief Get the combined transform of a shape /// /// \param shape shape object /// /// \return Transform combining the position/rotation/scale/origin of the object /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfTransform sfShape_getTransform(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the inverse of the combined transform of a shape /// /// \param shape shape object /// /// \return Inverse of the combined transformations applied to the object /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfTransform sfShape_getInverseTransform(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Change the source texture of a shape /// /// The \a texture argument refers to a texture that must /// exist as long as the shape uses it. Indeed, the shape /// doesn't store its own copy of the texture, but rather keeps /// a pointer to the one that you passed to this function. /// If the source texture is destroyed and the shape tries to /// use it, the behaviour is undefined. /// \a texture can be NULL to disable texturing. /// If \a resetRect is true, the TextureRect property of /// the shape is automatically adjusted to the size of the new /// texture. If it is false, the texture rect is left unchanged. /// /// \param shape Shape object /// \param texture New texture /// \param resetRect Should the texture rect be reset to the size of the new texture? /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_setTexture(sfShape* shape, const sfTexture* texture, sfBool resetRect); //////////////////////////////////////////////////////////// /// \brief Set the sub-rectangle of the texture that a shape will display /// /// The texture rect is useful when you don't want to display /// the whole texture, but rather a part of it. /// By default, the texture rect covers the entire texture. /// /// \param shape Shape object /// \param rect Rectangle defining the region of the texture to display /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_setTextureRect(sfShape* shape, sfIntRect rect); //////////////////////////////////////////////////////////// /// \brief Set the fill color of a shape /// /// This color is modulated (multiplied) with the shape's /// texture if any. It can be used to colorize the shape, /// or change its global opacity. /// You can use sfTransparent to make the inside of /// the shape transparent, and have the outline alone. /// By default, the shape's fill color is opaque white. /// /// \param shape Shape object /// \param color New color of the shape /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_setFillColor(sfShape* shape, sfColor color); //////////////////////////////////////////////////////////// /// \brief Set the outline color of a shape /// /// You can use sfTransparent to disable the outline. /// By default, the shape's outline color is opaque white. /// /// \param shape Shape object /// \param color New outline color of the shape /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_setOutlineColor(sfShape* shape, sfColor color); //////////////////////////////////////////////////////////// /// \brief Set the thickness of a shape's outline /// /// This number cannot be negative. Using zero disables /// the outline. /// By default, the outline thickness is 0. /// /// \param shape Shape object /// \param thickness New outline thickness /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_setOutlineThickness(sfShape* shape, float thickness); //////////////////////////////////////////////////////////// /// \brief Get the source texture of a shape /// /// If the shape has no source texture, a NULL pointer is returned. /// The returned pointer is const, which means that you can't /// modify the texture when you retrieve it with this function. /// /// \param shape Shape object /// /// \return Pointer to the shape's texture /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API const sfTexture* sfShape_getTexture(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the sub-rectangle of the texture displayed by a shape /// /// \param shape Shape object /// /// \return Texture rectangle of the shape /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfIntRect sfShape_getTextureRect(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the fill color of a shape /// /// \param shape Shape object /// /// \return Fill color of the shape /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfColor sfShape_getFillColor(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the outline color of a shape /// /// \param shape Shape object /// /// \return Outline color of the shape /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfColor sfShape_getOutlineColor(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the outline thickness of a shape /// /// \param shape Shape object /// /// \return Outline thickness of the shape /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API float sfShape_getOutlineThickness(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the total number of points of a shape /// /// \param shape Shape object /// /// \return Number of points of the shape /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API unsigned int sfShape_getPointCount(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get a point of a shape /// /// The result is undefined if \a index is out of the valid range. /// /// \param shape Shape object /// \param index Index of the point to get, in range [0 .. getPointCount() - 1] /// /// \return Index-th point of the shape /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfVector2f sfShape_getPoint(const sfShape* shape, unsigned int index); //////////////////////////////////////////////////////////// /// \brief Get the local bounding rectangle of a shape /// /// The returned rectangle is in local coordinates, which means /// that it ignores the transformations (translation, rotation, /// scale, ...) that are applied to the entity. /// In other words, this function returns the bounds of the /// entity in the entity's coordinate system. /// /// \param shape Shape object /// /// \return Local bounding rectangle of the entity /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfFloatRect sfShape_getLocalBounds(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Get the global bounding rectangle of a shape /// /// The returned rectangle is in global coordinates, which means /// that it takes in account the transformations (translation, /// rotation, scale, ...) that are applied to the entity. /// In other words, this function returns the bounds of the /// sprite in the global 2D world's coordinate system. /// /// \param shape Shape object /// /// \return Global bounding rectangle of the entity /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API sfFloatRect sfShape_getGlobalBounds(const sfShape* shape); //////////////////////////////////////////////////////////// /// \brief Recompute the internal geometry of a shape /// /// This function must be called by specialized shape objects /// everytime their points change (ie. the result of either /// the getPointCount or getPoint callbacks is different). /// //////////////////////////////////////////////////////////// CSFML_GRAPHICS_API void sfShape_update(sfShape* shape); #endif // SFML_SHAPE_H