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/* Copyright (C) 2025 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef INCLUDED_ICAMERACONTROLLER
#define INCLUDED_ICAMERACONTROLLER
#include "lib/code_annotation.h"
#include "lib/input.h" // InReaction - can't forward-declare enum
#include "simulation2/system/Entity.h"
class CCamera;
class CVector3D;
struct SDL_Event_;
struct SViewPort;
/**
* @interface ICameraController defines a camera controller interface. The camera object
* is owned by the camera controller's owner. It is therefore guaranteed that the lifetime
* of the camera is at least the same as the lifetime of the camera controller.
* The camera object is stored by reference, ensuring that the camera controller has full
* control of the camera object during its own lifetime.
*/
class ICameraController
{
NONCOPYABLE(ICameraController);
public:
explicit ICameraController(CCamera& camera);
virtual ~ICameraController();
virtual void LoadConfig() = 0;
virtual InReaction HandleEvent(const SDL_Event_* ev) = 0;
virtual CVector3D GetCameraPivot() const = 0;
virtual CVector3D GetCameraPosition() const = 0;
virtual CVector3D GetCameraRotation() const = 0;
virtual float GetCameraZoom() const = 0;
virtual void SetCamera(const CVector3D& pos, float rotX, float rotY, float zoom) = 0;
virtual void MoveCameraTarget(const CVector3D& target) = 0;
virtual void ResetCameraTarget(const CVector3D& target) = 0;
virtual void FollowEntity(entity_id_t entity, bool firstPerson) = 0;
virtual entity_id_t GetFollowedEntity() = 0;
virtual void Update(const float deltaRealTime) = 0;
virtual void SetViewport(const SViewPort& vp) = 0;
virtual bool GetConstrainCamera() const = 0;
virtual void SetConstrainCamera(bool constrain) = 0;
protected:
CCamera& m_Camera;
};
#endif // INCLUDED_ICAMERACONTROLLER
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