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151 lines
5.1 KiB
151 lines
5.1 KiB
//////////////////////////////////////////////////////////// |
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// |
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// SFML - Simple and Fast Multimedia Library |
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// Copyright (C) 2007-2013 Laurent Gomila (laurent.gom@gmail.com) |
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// |
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// This software is provided 'as-is', without any express or implied warranty. |
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// In no event will the authors be held liable for any damages arising from the use of this software. |
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// |
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// Permission is granted to anyone to use this software for any purpose, |
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// including commercial applications, and to alter it and redistribute it freely, |
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// subject to the following restrictions: |
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// |
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// 1. The origin of this software must not be misrepresented; |
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// you must not claim that you wrote the original software. |
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// If you use this software in a product, an acknowledgment |
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// in the product documentation would be appreciated but is not required. |
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// |
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// 2. Altered source versions must be plainly marked as such, |
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// and must not be misrepresented as being the original software. |
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// |
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// 3. This notice may not be removed or altered from any source distribution. |
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// |
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//////////////////////////////////////////////////////////// |
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#ifndef SFML_CIRCLESHAPE_HPP |
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#define SFML_CIRCLESHAPE_HPP |
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//////////////////////////////////////////////////////////// |
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// Headers |
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//////////////////////////////////////////////////////////// |
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#include <SFML/Graphics/Export.hpp> |
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#include <SFML/Graphics/Shape.hpp> |
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namespace sf |
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{ |
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//////////////////////////////////////////////////////////// |
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/// \brief Specialized shape representing a circle |
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/// |
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//////////////////////////////////////////////////////////// |
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class SFML_GRAPHICS_API CircleShape : public Shape |
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{ |
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public : |
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//////////////////////////////////////////////////////////// |
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/// \brief Default constructor |
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/// |
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/// \param radius Radius of the circle |
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/// \param pointCount Number of points composing the circle |
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/// |
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//////////////////////////////////////////////////////////// |
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explicit CircleShape(float radius = 0, unsigned int pointCount = 30); |
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//////////////////////////////////////////////////////////// |
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/// \brief Set the radius of the circle |
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/// |
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/// \param radius New radius of the circle |
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/// |
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/// \see getRadius |
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/// |
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//////////////////////////////////////////////////////////// |
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void setRadius(float radius); |
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//////////////////////////////////////////////////////////// |
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/// \brief Get the radius of the circle |
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/// |
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/// \return Radius of the circle |
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/// |
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/// \see setRadius |
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/// |
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//////////////////////////////////////////////////////////// |
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float getRadius() const; |
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//////////////////////////////////////////////////////////// |
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/// \brief Set the number of points of the circle |
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/// |
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/// \param count New number of points of the circle |
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/// |
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/// \see getPointCount |
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/// |
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//////////////////////////////////////////////////////////// |
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void setPointCount(unsigned int count); |
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//////////////////////////////////////////////////////////// |
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/// \brief Get the number of points of the shape |
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/// |
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/// \return Number of points of the shape |
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/// |
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/// \see setPointCount |
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/// |
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//////////////////////////////////////////////////////////// |
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virtual unsigned int getPointCount() const; |
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//////////////////////////////////////////////////////////// |
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/// \brief Get a point of the shape |
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/// |
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/// The result is undefined if \a index is out of the valid range. |
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/// |
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/// \param index Index of the point to get, in range [0 .. getPointCount() - 1] |
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/// |
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/// \return Index-th point of the shape |
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/// |
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//////////////////////////////////////////////////////////// |
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virtual Vector2f getPoint(unsigned int index) const; |
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private : |
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//////////////////////////////////////////////////////////// |
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// Member data |
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//////////////////////////////////////////////////////////// |
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float m_radius; ///< Radius of the circle |
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unsigned int m_pointCount; ///< Number of points composing the circle |
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}; |
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} // namespace sf |
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#endif // SFML_CIRCLESHAPE_HPP |
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//////////////////////////////////////////////////////////// |
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/// \class sf::CircleShape |
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/// \ingroup graphics |
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/// |
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/// This class inherits all the functions of sf::Transformable |
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/// (position, rotation, scale, bounds, ...) as well as the |
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/// functions of sf::Shape (outline, color, texture, ...). |
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/// |
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/// Usage example: |
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/// \code |
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/// sf::CircleShape circle; |
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/// circle.setRadius(150); |
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/// circle.setOutlineColor(sf::Color::Red); |
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/// circle.setOutlineThickness(5); |
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/// circle.setPosition(10, 20); |
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/// ... |
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/// window.draw(circle); |
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/// \endcode |
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/// |
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/// Since the graphics card can't draw perfect circles, we have to |
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/// fake them with multiple triangles connected to each other. The |
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/// "points count" property of sf::CircleShape defines how many of these |
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/// triangles to use, and therefore defines the quality of the circle. |
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/// |
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/// The number of points can also be used for another purpose; with |
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/// small numbers you can create any regular polygon shape: |
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/// equilateral triangle, square, pentagon, hexagon, ... |
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/// |
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/// \see sf::Shape, sf::RectangleShape, sf::ConvexShape |
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/// |
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////////////////////////////////////////////////////////////
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