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Since C++11 a C typedef'ed union can be forward declared, so the wrapper is no longer needed. While at it switch signatures to refs and convert C style casts. Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
144 lines
3.9 KiB
C++
144 lines
3.9 KiB
C++
/* Copyright (C) 2026 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef INCLUDED_CAMERACONTROLLER
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#define INCLUDED_CAMERACONTROLLER
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#include "graphics/ICameraController.h"
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#include "graphics/SmoothedValue.h"
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#include "lib/code_annotation.h"
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#include "lib/input.h"
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#include "simulation2/system/Entity.h"
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#include <memory>
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class CCamera;
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class CConfigDBHook;
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class CMatrix3D;
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class CVector3D;
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union SDL_Event;
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class CCameraController : public ICameraController
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{
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NONCOPYABLE(CCameraController);
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public:
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CCameraController(CCamera& camera);
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~CCameraController() override;
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void LoadConfig() override;
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InReaction HandleEvent(const SDL_Event& ev) override;
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CVector3D GetCameraPivot() const override;
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CVector3D GetCameraPosition() const override;
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CVector3D GetCameraRotation() const override;
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float GetCameraZoom() const override;
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void SetCamera(const CVector3D& pos, float rotX, float rotY, float zoom) override;
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void MoveCameraTarget(const CVector3D& target) override;
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void ResetCameraTarget(const CVector3D& target) override;
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void FollowEntity(entity_id_t entity, bool firstPerson) override;
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entity_id_t GetFollowedEntity() override;
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void Update(const float deltaRealTime) override;
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void SetViewport(const SViewPort& vp) override;
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bool GetConstrainCamera() const override
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{
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return m_ConstrainCamera;
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}
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void SetConstrainCamera(bool constrain) override
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{
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m_ConstrainCamera = constrain;
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}
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private:
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CVector3D GetSmoothPivot(CCamera &camera) const;
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void ResetCameraAngleZoom();
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void ToggleBirdsEyeView();
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void SetupCameraMatrixSmooth(CMatrix3D* orientation);
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void SetupCameraMatrixSmoothRot(CMatrix3D* orientation);
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void SetupCameraMatrixNonSmooth(CMatrix3D* orientation);
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void FocusHeight(bool smooth);
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/**
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* Set projection of current camera using near, far, and FOV values
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*/
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void SetCameraProjection();
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/**
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* Whether the camera movement should be constrained by min/max limits
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* and terrain avoidance.
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*/
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bool m_ConstrainCamera;
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/**
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* Entity for the camera to follow, or INVALID_ENTITY if none.
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*/
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entity_id_t m_FollowEntity;
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/**
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* Whether to follow FollowEntity in first-person mode.
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*/
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bool m_FollowFirstPerson;
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/**
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* Whether the camera is in bird's eye view mode.
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*/
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bool m_BirdsEyeView;
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// Settings
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float m_ViewScrollSpeed;
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float m_ViewScrollSpeedModifier;
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// How close the mouse pointer should be to a view edge to move the camera.
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int m_ViewScrollMouseDetectDistance;
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float m_ViewRotateXSpeed;
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float m_ViewRotateXMin;
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float m_ViewRotateXMax;
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float m_ViewRotateXDefault;
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float m_ViewRotateYSpeed;
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float m_ViewRotateYSpeedWheel;
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float m_ViewRotateYDefault;
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float m_ViewRotateSpeedModifier;
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float m_ViewDragSpeed;
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bool m_ViewDragInverted;
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float m_ViewZoomSpeed;
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float m_ViewZoomSpeedWheel;
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float m_ViewZoomMin;
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float m_ViewZoomMax;
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float m_ViewZoomDefault;
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float m_ViewZoomSpeedModifier;
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float m_ViewFOV;
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float m_ViewNear;
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float m_ViewFar;
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float m_HeightSmoothness;
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float m_HeightMin;
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// Camera Controls State
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CSmoothedValue m_PosX;
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CSmoothedValue m_PosY;
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CSmoothedValue m_PosZ;
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CSmoothedValue m_Zoom;
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CSmoothedValue m_RotateX; // inclination around x axis (relative to camera)
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CSmoothedValue m_RotateY; // rotation around y (vertical) axis
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std::unique_ptr<CConfigDBHook> m_ViewDragInvertedConfigHook;
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std::unique_ptr<CConfigDBHook> m_ViewDragSpeedConfigHook;
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};
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#endif // INCLUDED_CAMERACONTROLLER
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