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110 lines
2.4 KiB
C++
110 lines
2.4 KiB
C++
#ifndef _TCASTTO
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#define _TCASTTO
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#include "types.h"
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class CEntity;
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// clang-format off
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#define TCASTTO_VISITORS \
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VISIT(CActor) \
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VISIT(CBallCamera) \
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VISIT(CBomb) \
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VISIT(CCinematicCamera) \
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VISIT(CCollisionActor) \
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VISIT(CDestroyableRock) \
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VISIT(CEnergyProjectile) \
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VISIT(CEntity) \
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VISIT(CExplosion) \
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VISIT(CFirstPersonCamera) \
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VISIT(CFishCloud) \
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VISIT(CGameCamera) \
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VISIT(CGameLight) \
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VISIT(CGameProjectile) \
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VISIT(CHUDBillboardEffect) \
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VISIT(CMetroidPrimeRelay) \
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VISIT(CPathCamera) \
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VISIT(CPatterned) \
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VISIT(CPhysicsActor) \
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VISIT(CPlayer) \
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VISIT(CRepulsor) \
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VISIT(CScriptActor) \
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VISIT(CScriptActorKeyframe) \
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VISIT(CScriptAiJumpPoint) \
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VISIT(CScriptCameraHint) \
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VISIT(CScriptCameraPitchVolume) \
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VISIT(CScriptCameraWaypoint) \
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VISIT(CScriptCoverPoint) \
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VISIT(CScriptDebugCameraWaypoint) \
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VISIT(CScriptDistanceFog) \
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VISIT(CScriptDock) \
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VISIT(CScriptDoor) \
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VISIT(CScriptEffect) \
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VISIT(CScriptGrapplePoint) \
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VISIT(CScriptGunTurret) \
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VISIT(CScriptMazeNode) \
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VISIT(CScriptPickup) \
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VISIT(CScriptPlatform) \
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VISIT(CScriptPlayerHint) \
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VISIT(CScriptPointOfInterest) \
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VISIT(CScriptRoomAcoustics) \
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VISIT(CScriptSound) \
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VISIT(CScriptSpawnPoint) \
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VISIT(CScriptSpecialFunction) \
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VISIT(CScriptSpiderBallAttractionSurface) \
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VISIT(CScriptSpiderBallWaypoint) \
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VISIT(CScriptTargetingPoint) \
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VISIT(CTeamAiMgr) \
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VISIT(CScriptTimer) \
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VISIT(CScriptTrigger) \
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VISIT(CScriptVisorFlare) \
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VISIT(CScriptWater) \
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VISIT(CScriptWaypoint) \
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VISIT(CSnakeWeedSwarm) \
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VISIT(CScriptSpindleCamera) \
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VISIT(CWallCrawlerSwarm) \
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VISIT(CWeapon)
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// clang-format on
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#define VISIT(cls) class cls;
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TCASTTO_VISITORS
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#undef VISIT
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class IVisitor {
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public:
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#define VISIT(cls) virtual void Visit(cls& p) = 0;
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TCASTTO_VISITORS
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#undef VISIT
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};
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template < class T >
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class TCastToPtr : public IVisitor {
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public:
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TCastToPtr(CEntity* p);
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TCastToPtr(CEntity& p);
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operator T*() const { return ptr; }
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#define VISIT(cls) void Visit(cls& p) override;
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TCASTTO_VISITORS
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#undef VISIT
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private:
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// Compiler picks the overload based on whether
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// the passed pointer is convertible to T*
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T* GetPtr(void* ptr) const { return nullptr; }
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T* GetPtr(T* ptr) const { return ptr; }
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T* ptr;
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};
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template < typename T >
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static inline const T* TCastToConstPtr(const CEntity* p) {
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return TCastToPtr< T >(const_cast< CEntity* >(p));
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}
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template < typename T >
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static inline const T* TCastToConstPtr(const CEntity& p) {
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return TCastToPtr< T >(const_cast< CEntity& >(p));
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}
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#endif // _TCASTTO
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