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// Copyright 2020 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <optional>
#include "Common/Matrix.h"
#include "Core/FreeLookConfig.h"
class PointerWrap;
class CameraController
{
public:
CameraController() = default;
virtual ~CameraController() = default;
CameraController(const CameraController&) = delete;
CameraController& operator=(const CameraController&) = delete;
CameraController(CameraController&&) = delete;
CameraController& operator=(CameraController&&) = delete;
virtual Common::Matrix44 GetView() = 0;
virtual void MoveVertical(float amt) = 0;
virtual void MoveHorizontal(float amt) = 0;
virtual void MoveForward(float amt) = 0;
virtual void Rotate(const Common::Vec3& amt) = 0;
virtual void Rotate(const Common::Quaternion& quat) = 0;
virtual void Reset() = 0;
virtual void DoState(PointerWrap& p) = 0;
};
class FreeLookCamera
{
public:
FreeLookCamera();
void SetControlType(FreeLook::ControlType type);
Common::Matrix44 GetView();
Common::Vec2 GetFieldOfView() const;
void MoveVertical(float amt);
void MoveHorizontal(float amt);
void MoveForward(float amt);
void Rotate(const Common::Vec3& amt);
void Rotate(const Common::Quaternion& amt);
void IncreaseFovX(float fov);
void IncreaseFovY(float fov);
float GetFovStepSize() const;
void Reset();
void DoState(PointerWrap& p);
bool IsDirty() const;
void SetClean();
void ModifySpeed(float multiplier);
void ResetSpeed();
float GetSpeed() const;
bool IsActive() const;
private:
bool m_dirty = false;
float m_fov_x = 1.0f;
float m_fov_y = 1.0f;
std::optional<FreeLook::ControlType> m_current_type;
std::unique_ptr<CameraController> m_camera_controller;
float m_min_fov_multiplier = 0.025f;
float m_speed = 60.0f;
};
extern FreeLookCamera g_freelook_camera;
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