camera2d.h

Go to the documentation of this file.

#pragma once

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

namespace fireworks { namespace graphics {

    class Camera2D // aka Orthographic Camera
    {
    private:
        glm::vec3           m_Position;
        float               m_Rotation = 0.0f;

        glm::mat4           m_ProjectionMatrix;
        glm::mat4           m_ViewMatrix;
        glm::mat4           m_ViewProjectionMatrix;
    public:
        Camera2D(glm::mat4 projection);

        void update();

        void setPosition(const glm::vec3& pos) { m_Position = pos; updateViewMatrix(); }
        void setRotaion(float rot) { m_Rotation = rot; updateViewMatrix(); }

        const glm::vec3& getPosition() const { return m_Position; }
        const float getRotation() const { return m_Rotation; }

        const glm::mat4& getProjectionMatrix() const { return m_ProjectionMatrix; }
        const glm::mat4& getViewMatrix()    const { return m_ViewMatrix; }
        const glm::mat4& getProjectionViewMatrix() const { return m_ViewProjectionMatrix; }
    private:
        void updateViewMatrix();
    };


} }