/* Copyright (c) 2002-2012 Croteam Ltd. This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation This program 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 this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include "StdAfx.h" #include "Camera.h" class CCameraPos { public: TIME cp_tmTick; FLOAT cp_fSpeed; FLOAT3D cp_vPos; ANGLE3D cp_aRot; ANGLE cp_aFOV; }; BOOL _bCameraOn=FALSE; CTFileStream _strScript; BOOL _bInitialized; FLOAT _fStartTime; CCameraPos _cp0; CCameraPos _cp1; CCameraPos _cp; // camera control INDEX cam_bRecord = FALSE; static INDEX cam_bMoveForward = FALSE; static INDEX cam_bMoveBackward = FALSE; static INDEX cam_bMoveLeft = FALSE; static INDEX cam_bMoveRight = FALSE; static INDEX cam_bMoveUp = FALSE; static INDEX cam_bMoveDown = FALSE; static INDEX cam_bTurnBankingLeft = FALSE; static INDEX cam_bTurnBankingRight = FALSE; static INDEX cam_bZoomIn = FALSE; static INDEX cam_bZoomOut = FALSE; static INDEX cam_bZoomDefault = FALSE; static INDEX cam_bResetToPlayer = FALSE; static INDEX cam_bSnapshot = FALSE; static INDEX cam_fSpeed = 1; // camera functions void CAM_Init(void) { _pShell->DeclareSymbol("user INDEX cam_bRecord;", &cam_bRecord); _pShell->DeclareSymbol("user INDEX cam_bMoveForward;", &cam_bMoveForward); _pShell->DeclareSymbol("user INDEX cam_bMoveBackward;", &cam_bMoveBackward); _pShell->DeclareSymbol("user INDEX cam_bMoveLeft;", &cam_bMoveLeft); _pShell->DeclareSymbol("user INDEX cam_bMoveRight;", &cam_bMoveRight); _pShell->DeclareSymbol("user INDEX cam_bMoveUp;", &cam_bMoveUp); _pShell->DeclareSymbol("user INDEX cam_bMoveDown;", &cam_bMoveDown); _pShell->DeclareSymbol("user INDEX cam_bTurnBankingLeft;", &cam_bTurnBankingLeft); _pShell->DeclareSymbol("user INDEX cam_bTurnBankingRight;", &cam_bTurnBankingRight); _pShell->DeclareSymbol("user INDEX cam_bZoomIn;", &cam_bZoomIn); _pShell->DeclareSymbol("user INDEX cam_bZoomOut;", &cam_bZoomOut); _pShell->DeclareSymbol("user INDEX cam_bZoomDefault;", &cam_bZoomDefault); _pShell->DeclareSymbol("user INDEX cam_bSnapshot;", &cam_bSnapshot); _pShell->DeclareSymbol("user INDEX cam_bResetToPlayer;", &cam_bResetToPlayer); _pShell->DeclareSymbol("user INDEX cam_fSpeed;", &cam_fSpeed); } BOOL CAM_IsOn(void) { return _bCameraOn; } void ReadPos(CCameraPos &cp) { try { CTString strLine; _strScript.GetLine_t(strLine); strLine.ScanF("%g: %g: %g %g %g:%g %g %g:%g", &cp.cp_tmTick, &cp.cp_fSpeed, &cp.cp_vPos(1), &cp.cp_vPos(2), &cp.cp_vPos(3), &cp.cp_aRot(1), &cp.cp_aRot(2), &cp.cp_aRot(3), &cp.cp_aFOV); } catch (char *strError) { CPrintF("Camera: %s\n", strError); } } void WritePos(CCameraPos &cp) { try { CTString strLine; strLine.PrintF("%g: %g: %g %g %g:%g %g %g:%g", _pTimer->GetLerpedCurrentTick()-_fStartTime, 1.0f, cp.cp_vPos(1), cp.cp_vPos(2), cp.cp_vPos(3), cp.cp_aRot(1), cp.cp_aRot(2), cp.cp_aRot(3), cp.cp_aFOV); _strScript.PutLine_t(strLine); } catch (char *strError) { CPrintF("Camera: %s\n", strError); } } void SetSpeed(FLOAT fSpeed) { CTString str; str.PrintF("dem_fRealTimeFactor = %g;", fSpeed); _pShell->Execute(str); } void CAM_Start(const CTFileName &fnmDemo) { _bCameraOn = FALSE; CTFileName fnmScript = fnmDemo.NoExt()+".ini"; if( cam_bRecord) { try { _strScript.Create_t(fnmScript); } catch(char *strError) { CPrintF("Camera: %s\n", strError); return; }; _cp.cp_vPos = FLOAT3D(0,0,0); _cp.cp_aRot = ANGLE3D(0,0,0); _cp.cp_aFOV = 90.0f; _cp.cp_fSpeed = 1; _cp.cp_tmTick = 0.0f; } else { try { _strScript.Open_t(fnmScript); } catch(char *strError) { (void)strError; return; }; } _bCameraOn = TRUE; _bInitialized = FALSE; } void CAM_Stop(void) { if (_bCameraOn) { _strScript.Close(); } _bCameraOn = FALSE; } void CAM_Render(CEntity *pen, CDrawPort *pdp) { if( cam_bRecord) { if (!_bInitialized) { _bInitialized = TRUE; SetSpeed(1.0f); _fStartTime = _pTimer->CurrentTick(); } FLOATmatrix3D m; MakeRotationMatrixFast(m, _cp.cp_aRot); FLOAT3D vX, vY, vZ; vX(1) = m(1,1); vX(2) = m(2,1); vX(3) = m(3,1); vY(1) = m(1,2); vY(2) = m(2,2); vY(3) = m(3,2); vZ(1) = m(1,3); vZ(2) = m(2,3); vZ(3) = m(3,3); _cp.cp_aRot(1)-=_pInput->GetAxisValue(MOUSE_X_AXIS)*0.5f; _cp.cp_aRot(2)-=_pInput->GetAxisValue(MOUSE_Y_AXIS)*0.5f; if( cam_bMoveForward) { _cp.cp_vPos -= vZ *cam_fSpeed; }; if( cam_bMoveBackward) { _cp.cp_vPos += vZ *cam_fSpeed; }; if( cam_bMoveLeft) { _cp.cp_vPos -= vX *cam_fSpeed; }; if( cam_bMoveRight) { _cp.cp_vPos += vX *cam_fSpeed; }; if( cam_bMoveUp) { _cp.cp_vPos += vY *cam_fSpeed; }; if( cam_bMoveDown) { _cp.cp_vPos -= vY *cam_fSpeed; }; if( cam_bTurnBankingLeft) { _cp.cp_aRot(3) += 10.0f; }; if( cam_bTurnBankingRight) { _cp.cp_aRot(3) -= 10.0f; }; if( cam_bZoomIn) { _cp.cp_aFOV -= 1.0f; }; if( cam_bZoomOut) { _cp.cp_aFOV += 1.0f; }; if( cam_bZoomDefault) { _cp.cp_aFOV = 90.0f; }; Clamp( _cp.cp_aFOV, 10.0f, 150.0f); if( cam_bResetToPlayer) { _cp.cp_vPos = pen->GetPlacement().pl_PositionVector; _cp.cp_aRot = pen->GetPlacement().pl_OrientationAngle; } if( cam_bSnapshot) { cam_bSnapshot = FALSE; WritePos(_cp); } } else { if (!_bInitialized) { _bInitialized = TRUE; ReadPos(_cp0); ReadPos(_cp1); SetSpeed(_cp0.cp_fSpeed); _fStartTime = _pTimer->CurrentTick(); } TIME tmNow = _pTimer->GetLerpedCurrentTick()-_fStartTime; if (tmNow>_cp1.cp_tmTick) { _cp0 = _cp1; ReadPos(_cp1); SetSpeed(_cp0.cp_fSpeed); } FLOAT fRatio = (tmNow-_cp0.cp_tmTick)/(_cp1.cp_tmTick-_cp0.cp_tmTick); _cp.cp_vPos = Lerp(_cp0.cp_vPos, _cp1.cp_vPos, fRatio); _cp.cp_aRot = Lerp(_cp0.cp_aRot, _cp1.cp_aRot, fRatio); _cp.cp_aFOV = Lerp(_cp0.cp_aFOV, _cp1.cp_aFOV, fRatio); } CPlacement3D plCamera; plCamera.pl_PositionVector = _cp.cp_vPos; plCamera.pl_OrientationAngle = _cp.cp_aRot; // init projection parameters CPerspectiveProjection3D prPerspectiveProjection; prPerspectiveProjection.FOVL() = _cp.cp_aFOV; prPerspectiveProjection.ScreenBBoxL() = FLOATaabbox2D( FLOAT2D(0.0f, 0.0f), FLOAT2D((float)pdp->GetWidth(), (float)pdp->GetHeight()) ); prPerspectiveProjection.AspectRatioL() = 1.0f; prPerspectiveProjection.FrontClipDistanceL() = 0.3f; CAnyProjection3D prProjection; prProjection = prPerspectiveProjection; // set up viewer position prProjection->ViewerPlacementL() = plCamera; // render the view RenderView(*pen->en_pwoWorld, *(CEntity*)NULL, prProjection, *pdp); }