charcoal/OpenGLEngine/Camera3D.h

#pragma once

#include "Camera.h"

#include <glm/glm.hpp>

using namespace glm;

class Camera3D : public Camera
{
public:
	// Creates a Camera3D.
	// Will throw if direction, up, and right are not orthogonal
	Camera3D(
		float fov_y,
		float aspect_ratio,
		float znear,
		float zfar,
		const vec3& position,
		const vec3& forward = vec3(0.0f, 0.0f, 1.0f),
		const vec3& up = vec3(0.0f, 1.0f, 0.0f),
		const vec3& right = vec3(1.0f, 0.0f, 0.0f)
	);

	void update_frustum(float fov_y, float aspect_ratio, float znear, float zfar);

	void translate(const vec3& translation);

	const vec3& get_position() const { return m_position; }
	vec3 get_forward() const { return vec3(m_orientation_matrix[2]); }
	vec3 get_up() const { return vec3(m_orientation_matrix[1]); }
	vec3 get_right() const { return vec3(m_orientation_matrix[0]); }

private:
	vec3 m_position;
};