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ExCCameraChase.cpp

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00001 /*
00002  * ExNihilo 3D Engine
00003  * 
00004  *  This program is free software; you can redistribute it and/or modify
00005  *  it under the terms of the GNU General Public License as published by
00006  *  the Free Software Foundation; either version 2 of the License, or
00007  *  (at your option) any later version.
00008  *
00009  *  This program is distributed in the hope that it will be useful,
00010  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  *  GNU Library General Public License for more details.
00013  *
00014  *  You should have received a copy of the GNU General Public License
00015  *  along with this program; if not, write to the Free Software
00016  *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
00017  *
00018  * Please read AUTHORS file !!!
00019  * 
00020  * $Id: ExCCameraChase.cpp,v 1.5 2002/09/03 00:00:02 data Exp $
00021  *
00022  */
00023 
00024 #include "ExCCameraChase.h"
00025 
00026 
00027 ExCCameraChase::ExCCameraChase()
00028 {
00029 Guard(ExCCameraChase::ExCCameraChase())
00030         SetName("ExCCameraChase");
00031         SetType(typeid(this).name());
00032         m_AngleAround=0;
00033         m_AngleFromBase=4;
00034         m_DistanceFromTarget=14.0f;
00035 UnGuard
00036 }
00037 
00038 ExCCameraChase::~ExCCameraChase()
00039 {
00040 Guard(ExCCameraChase::~ExCCameraChase())
00041 UnGuard
00042 }
00043 
00044 void ExCCameraChase::Draw(void)
00045 {
00046 Guard(void ExCCameraChase::Draw(void))
00047         if(m_AngleX<0)m_AngleX=359;
00048         if(m_AngleX>359)m_AngleX=0;
00049         if(m_AngleY<0)m_AngleY=359;
00050         if(m_AngleY>359)m_AngleY=0;
00051         if(m_AngleZ<0)m_AngleZ=359;
00052         if(m_AngleZ>359)m_AngleZ=0;
00053 
00054         m_TargetPosition=ManagerModel->GetCurrentObject()->GetPosition();
00055 //Le cote adjacent = cos(angle) * hypotenuse
00056 //Le cote oppose = tan(angle) * hypotenuse
00057         //m_Position.SetX(-(Cos[m_AngleFromBase]*m_DistanceFromTarget));
00058         //m_Position.SetY(tan(m_AngleFromBase)*m_DistanceFromTarget);
00059 
00060 /*      m_Position.SetX(-25);
00061         m_Position.SetY(12);
00062         
00063         
00064         m_Position.SetZ(-2.5f);
00065         
00066         int tmp=m_Position.GetX()*Cos[(int)m_AngleX];
00067         m_Position.SetZ(-25-tmp);
00068         m_Position.SetX(tmp);
00069         
00070         
00071 
00072         m_Position=m_Position+m_TargetPosition;
00073 
00074 
00075         m_Target=ManagerModel->GetCurrentObject()->GetPosition();
00076         //m_Target.SetZ(m_Target.GetZ()-2.5f);
00077     gluLookAt(m_Position.GetX(),m_Position.GetY(),m_Position.GetZ()
00078                         ,m_Target.GetX(),m_Target.GetY(),m_Target.GetZ()
00079                         ,0.0,1.0,0.0);
00080         m_Position.SetValue(0.0f,0.0f,0.0f);
00081   */
00082 
00083         float cosY,cosP,cosR;
00084         float sinY,sinP,sinR;
00085 
00086         cosY=cosf(DegreesToRadians(m_AngleY));
00087         cosP=cosf(DegreesToRadians(m_AngleX));
00088         cosR=cosf(DegreesToRadians(m_AngleZ));
00089 
00090         sinY=sinf(DegreesToRadians(m_AngleY));
00091         sinP=sinf(DegreesToRadians(m_AngleX));
00092         sinR=sinf(DegreesToRadians(m_AngleZ));  
00093 
00094         ExCVec3D fwd,side;
00095 
00096         fwd.SetX(sinY*cosP);
00097         fwd.SetY(sinP);
00098         fwd.SetZ(cosP*-cosY);
00099 
00100         //m_Target=fwd+m_Position;
00101         
00102 
00103         m_Target=fwd+ManagerModel->GetCurrentObject()->GetPosition();
00104 
00105         m_Position.SetX(-25+m_Target.GetX());
00106         m_Position.SetY(12+m_Target.GetY());
00107 
00108         m_Up.SetX((-cosY*sinR)-(sinY*sinP*cosR));
00109         m_Up.SetY(cosP*cosR);
00110         m_Up.SetZ((-sinY*sinR)-(sinP*cosR*-cosY));
00111 
00112         char buff[255];
00113         memset(buff,0,255);
00114         sprintf(buff,"Camera position X:%f Y:%f Z:%f",m_Position.GetX(),m_Position.GetY(),m_Position.GetZ());
00115         ExNihilo::WriteToScreen(30,540,buff);
00116         memset(buff,0,255);
00117         sprintf(buff,"Camera fwd X:%f Y:%f Z:%f",fwd.GetX(),fwd.GetY(),fwd.GetZ());
00118         ExNihilo::WriteToScreen(30,560,buff);
00119         memset(buff,0,255);
00120         sprintf(buff,"Camera target X:%f Y:%f Z:%f",m_Target.GetX(),m_Target.GetY(),m_Target.GetZ());
00121         ExNihilo::WriteToScreen(30,580,buff);
00122 
00123 
00124         gluLookAt(m_Position.GetX(),m_Position.GetY(),m_Position.GetZ()
00125                         ,m_Target.GetX(),m_Target.GetY(),m_Target.GetZ()
00126                         ,m_Up.GetX(),m_Up.GetY(),m_Up.GetZ());
00127         
00128         //m_Position=m_Position+((m_Target-m_Position)*m_speed);
00129         
00130 UnGuard
00131 }

Generated on Tue Dec 10 18:20:02 2002 for ExNihilo by doxygen1.3-rc1