camera2d.hpp

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/* ----------------------------------------------------------------------------
 * camera2d.hpp
 *
 * Copyright (c) 2017 Yann Herklotz Grave <ymherklotz@gmail.com>
 * MIT License, see LICENSE file for more details.
 * ----------------------------------------------------------------------------
 */

#ifndef CAMERA_2D_HPP
#define CAMERA_2D_HPP

#include "glslprogram.hpp"

#include <glm/glm.hpp>
#include <glm/gtc/matrix_transform.hpp>

namespace yage {

class Camera2D {
private:
    bool matrix_needs_update_ = true;
    float scale_ = 1;
    glm::vec2 position_;
    glm::mat4 camera_matrix_;
    glm::mat4 ortho_matrix_;

public:
    Camera2D(int screen_width = 1280, int screen_height = 720);

    // update camera location
    void update(GlslProgram& program);
    // camera movement
    void move(const glm::vec2& direction);
};

}  // yage

#endif