Tileset.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.
 */
#ifndef GF_TILESET_H
#define GF_TILESET_H

#include "GraphicsApi.h"
#include "Texture.h"
#include "Vector.h"

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

  class GF_GRAPHICS_API Tileset {
  public:
    Tileset();

    void setTexture(const Texture& texture);

    const Texture& getTexture() const {
      return *m_texture;
    }

    bool hasTexture() const {
      return m_texture != nullptr;
    }

    void unsetTexture();

    void setTileSize(Vector2i tileSize);

    Vector2i getTileSize() const {
      return m_tileSize;
    }

    void setMargin(int margin) {
      setMargin({ margin, margin });
    }

    void setMargin(Vector2i margin);

    Vector2i getMargin() const {
      return m_margin;
    }

    void setSpacing(int spacing) {
      setSpacing({ spacing, spacing });
    }

    void setSpacing(Vector2i spacing);

    Vector2i getSpacing() const {
      return m_spacing;
    }

    void setOffset(Vector2i offset);

    Vector2i getOffset() const {
      return m_offset;
    }

    Vector2i getSize() const {
      return m_size;
    }

    RectF computeTextureCoords(int tile) const;

    RectF computeTextureCoords(Vector2i coords) const;

  private:
    void updateSize();

  private:
    const Texture *m_texture;
    Vector2i m_tileSize;
    Vector2i m_margin;
    Vector2i m_spacing;
    Vector2i m_offset;
    Vector2i m_size;
  };

#ifndef DOXYGEN_SHOULD_SKIP_THIS
}
#endif
}

#endif // GF_TILESET_H