Shapes.h

/*
 * Gamedev Framework (gf)
 * Copyright (C) 2016-2021 Julien Bernard
 *
 * 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.
 *
 * Part of this file comes from SFML, with the same license:
 * Copyright (C) 2007-2015 Laurent Gomila (laurent@sfml-dev.org)
 */
#ifndef GF_SHAPES_H
#define GF_SHAPES_H

#include <cstddef>
#include <vector>

#include "Circ.h"
#include "GraphicsApi.h"
#include "Polygon.h"
#include "Rect.h"
#include "Shape.h"
#include "Vector.h"

namespace gf {
#ifndef DOXYGEN_SHOULD_SKIP_THIS
inline namespace v1 {
#endif

  class GF_GRAPHICS_API RectangleShape : public Shape {
  public:
    RectangleShape(Vector2f size = Vector2f{ 0.0f, 0.0f });

    explicit RectangleShape(const RectF& rect);

    void setSize(Vector2f size);

    Vector2f getSize() const {
      return m_size;
    }

    std::size_t getPointCount() const override;
    Vector2f getPoint(std::size_t index) const override;

  private:
    Vector2f m_size;
  };

  class GF_GRAPHICS_API CircleShape : public Shape {
  public:
    CircleShape(float radius = 0, std::size_t pointCount = 30);

    explicit CircleShape(const CircF& circ, std::size_t pointCount = 30);

    void setRadius(float radius);

    float getRadius() const {
      return m_radius;
    }

    void setPointCount(std::size_t pointCount);

    std::size_t getPointCount() const override;
    Vector2f getPoint(std::size_t index) const override;

  private:
    float m_radius;
    std::size_t m_pointCount;
  };

  class GF_GRAPHICS_API ConvexShape : public Shape {
  public:
    ConvexShape(std::size_t pointCount);

    ConvexShape(const Polygon& polygon);

    void setPointCount(std::size_t pointCount);

    void setPoint(std::size_t index, Vector2f point);

    std::size_t getPointCount() const override;
    Vector2f getPoint(std::size_t index) const override;

  private:
    std::vector<Vector2f> m_points;
  };


  class GF_GRAPHICS_API StarShape : public Shape {
  public:
    StarShape(float minRadius = 0, float maxRadius = 0, std::size_t branches = 7);

    void setMinRadius(float minRadius);

    float getMinRadius() const {
      return m_minRadius;
    }

    void setMaxRadius(float maxRadius);

    float getMaxRadius() const {
      return m_maxRadius;
    }

    void setBranches(std::size_t branches);

    std::size_t getBranches() const {
      return m_branches;
    }

    std::size_t getPointCount() const override;
    Vector2f getPoint(std::size_t index) const override;

  private:
    float m_minRadius;
    float m_maxRadius;
    std::size_t m_branches;
  };


  class GF_GRAPHICS_API RoundedRectangleShape : public Shape {
  public:
    RoundedRectangleShape(Vector2f size = Vector2f{ 0.0f, 0.0f }, float radius = 0.0f, std::size_t cornerPointCount = 8);

    explicit RoundedRectangleShape(const RectF& rect, float radius = 0.0f, std::size_t cornerPointCount = 8);

    void setSize(Vector2f size);

    Vector2f getSize() const {
      return m_size;
    }

    void setRadius(float radius);

    float getRadius() const {
      return m_radius;
    }

    void setCornerPointCount(std::size_t cornerPointCount);

    std::size_t getPointCount() const override;
    Vector2f getPoint(std::size_t index) const override;

  private:
    Vector2f m_size;
    float m_radius;
    std::size_t m_cornerPointCount;
  };


  class GF_GRAPHICS_API Pie : public Shape {
  public:
    enum Variation {
      Positive,
      Negative,
    };

    Pie(float radius, float angle0, float angle1, Variation variation = Positive, std::size_t pointCount = 30);

    void setRadius(float radius);

    float getRadius() const {
      return m_radius;
    }

    void setAngleRange(float angle0, float angle1, Variation variation);

    void setPointCount(std::size_t pointCount);

    std::size_t getPointCount() const override;
    Vector2f getPoint(std::size_t index) const override;

  private:
    void adjustAngles(Variation variation);

  private:
    float m_radius;
    float m_angle0;
    float m_angle1;
    std::size_t m_pointCount;
  };

#ifndef DOXYGEN_SHOULD_SKIP_THIS
}
#endif
}

#endif // GF_SHAPES_H