lve_camera.hpp

#pragma once

// libs
#define GLM_FORCE_RADIANS
#define GLM_FORCE_DEPTH_ZERO_TO_ONE
#include <glm/glm.hpp>

namespace lve {

    class LveCamera {
    public:
        void setOrthographicProjection(
            float left, float right, float top, float bottom, float near, float far);
        void setPerspectiveProjection(float fovy, float aspect, float near, float far);

        void setViewDirection(
            glm::vec3 position, glm::vec3 direction, glm::vec3 up = glm::vec3{ 0.f, -1.f, 0.f });
        void setViewTarget(
            glm::vec3 position, glm::vec3 target, glm::vec3 up = glm::vec3{ 0.f, -1.f, 0.f });
        void setViewYXZ(glm::vec3 position, glm::vec3 rotation);

        const glm::mat4& getProjection() const { return projectionMatrix; }
        const glm::mat4& getView() const { return viewMatrix; }
        const glm::mat4& getInverseView() const { return inverseViewMatrix; }
        const glm::vec3 getPosition() const { return glm::vec3(inverseViewMatrix[3]); }
    private:
        glm::mat4 projectionMatrix{ 1.f };
        glm::mat4 viewMatrix{ 1.f };
        glm::mat4 inverseViewMatrix{ 1.f };
    };
}  // namespace lve