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# ExCCamera.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: ExCCamera.cpp,v 1.13 2002/12/13 11:45:02 data Exp $
    00021  *
    00022  */
    00023
    00024 #include "ExCCamera.h"
    00025
    00026
    00027 ExCCamera::ExCCamera(void)
    00028 {
    00029 Guard(ExCCamera::ExCCamera(void))
    00030         //m_Angle.SetValue(300,180,0);
    00031         m_speed=0;
    00032         m_ZoomDefault=40;
    00033         m_Zoom=m_ZoomDefault;
    00034         m_ZoomMin=1;
    00035         m_ZoomMax=100;
    00036         m_ClipFar=100000000;
    00037         m_ClipNear=1;
    00038         SetName("ExCCamera");
    00039         SetType(typeid(this).name());
    00040         m_ShowInfo=true;
    00041         //m_Position.SetValue(2318,634,1409);
    00042 UnGuard
    00043 }
    00044
    00045 ExCCamera::~ExCCamera(void)
    00046 {
    00047 Guard(ExCCamera::~ExCCamera(void))
    00048 UnGuard
    00049 }
    00050
    00051 void ExCCamera::DrawCameraGizmo(void)
    00052 {
    00053         glColor4f(0.2,0.2,1,1);
    00054
    00055         glPushMatrix();
    00056         glTranslatef(m_Position.GetX(),m_Position.GetY(),m_Position.GetZ());
    00057         glutWireSphere(0.5,4,4);
    00058
    00059         glColor3f(0.5,0,0.5);
    00060
    00061         glBegin(GL_LINES);
    00062                 glVertex3fv(m_Position.m_Vector);
    00063                 glVertex3fv(m_Target.m_Vector);
    00064         glEnd();
    00065
    00066         glPopMatrix();
    00067 }
    00068
    00069 void ExCCamera::Draw(void)
    00070 {
    00071 Guard(ExCCamera::Draw(void))
    00072 //cout<<"Draw "<<m_ObjectName<<" ID:"<<m_ObjectId<<endl;
    00073         Process();
    00074
    00075         if(m_Angle.GetX()<0)m_Angle.SetX(359+m_Angle.GetX());
    00076         if(m_Angle.GetX()>359)m_Angle.SetX(359-m_Angle.GetX());
    00077         if(m_Angle.GetY()<0)m_Angle.SetY(359+m_Angle.GetY());
    00078         if(m_Angle.GetY()>359)m_Angle.SetY(359-m_Angle.GetY());
    00079         if(m_Angle.GetZ()<0)m_Angle.SetZ(359+m_Angle.GetZ());
    00080         if(m_Angle.GetZ()>359)m_Angle.SetZ(359-m_Angle.GetZ());
    00081
    00082         float cosY,cosP,cosR;
    00083         float sinY,sinP,sinR;
    00084
    00085         cosY=cosf(DegreesToRadians(GetAngleY()));
    00086         cosP=cosf(DegreesToRadians(GetAngleX()));
    00087         cosR=cosf(DegreesToRadians(GetAngleZ()));
    00088
    00089         sinY=sinf(DegreesToRadians(GetAngleY()));
    00090         sinP=sinf(DegreesToRadians(GetAngleX()));
    00091         sinR=sinf(DegreesToRadians(GetAngleZ()));
    00092
    00093
    00094
    00095         fwd.SetX(sinY*cosP);
    00096         fwd.SetY(sinP);
    00097         fwd.SetZ(cosP*-cosY);
    00098
    00099         m_Target=fwd+m_Position;
    00100
    00101
    00102         m_Up.SetX((-cosY*sinR)-(sinY*sinP*cosR));
    00103         m_Up.SetY(cosP*cosR);
    00104         m_Up.SetZ((-sinY*sinR)-(sinP*cosR*-cosY));
    00105
    00106
    00107
    00108
    00109         gluLookAt(m_Position.GetX(),m_Position.GetY(),m_Position.GetZ()
    00110                         ,m_Target.GetX(),m_Target.GetY(),m_Target.GetZ()
    00111                         ,m_Up.GetX(),m_Up.GetY(),m_Up.GetZ());
    00112
    00113         m_Position=m_Position+((m_Target-m_Position)*m_speed);
    00114         //if(m_ShowInfo)DrawCameraInfo();
    00115
    00116
    00117
    00118 UnGuard
    00119 }
    00120 void ExCCamera::DrawCameraInfo(void)
    00121 {
    00122 Guard(void ExCCamera::DrawCameraInfo(void))
    00123         glColor3f(1,1,1);
    00124         char buff[255];
    00125         memset(buff,0,255);
    00126         //sprintf(buff,"Camera Name:%s",m_ObjectName);
    00127         ExNihilo::WriteToScreen(30,520,buff);
    00128         memset(buff,0,255);
    00129         sprintf(buff,"Camera position X:%f Y:%f Z:%f",m_Position.GetX(),m_Position.GetY(),m_Position.GetZ());
    00130         ExNihilo::WriteToScreen(30,540,buff);
    00131         memset(buff,0,255);
    00132         sprintf(buff,"Camera fwd X:%f Y:%f Z:%f",fwd.GetX(),fwd.GetY(),fwd.GetZ());
    00133         ExNihilo::WriteToScreen(30,560,buff);
    00134         memset(buff,0,255);
    00135         sprintf(buff,"Camera target X:%f Y:%f Z:%f",m_Target.GetX(),m_Target.GetY(),m_Target.GetZ());
    00136         ExNihilo::WriteToScreen(30,580,buff);
    00137         memset(buff,0,255);
    00138         sprintf(buff,"Camera angle X:%f Y:%f Z:%f",m_Angle.GetX(),m_Angle.GetY(),m_Angle.GetZ());
    00139         ExNihilo::WriteToScreen(30,600,buff);
    00140
    00141 UnGuard
    00142 }
    00143
    00144 void ExCCamera::ResetZoom(void)
    00145 {
    00146 Guard(void ExCCamera::ResetZoom(void))
    00147         m_Zoom=m_ZoomDefault;
    00148 UnGuard
    00149 }
    00150
    00151 void ExCCamera::SetZoomDefault(float zoom)
    00152 {
    00153 Guard(void ExCCamera:: SetZoomDefault(float zoom))
    00154         if(zoom<m_ZoomMax&&zoom>m_ZoomMin)
    00155                 m_ZoomDefault=zoom;
    00156 UnGuard
    00157 }
    00158
    00159 void ExCCamera::ZoomIn(void)
    00160 {
    00161 Guard(void ExCCamera::ZoomIn(void))
    00162         m_Zoom--;
    00163         if(m_Zoom<=m_ZoomMin)m_Zoom=m_ZoomMin+1;
    00164 UnGuard
    00165 }
    00166
    00167 void ExCCamera::ZoomOut(void)
    00168 {
    00169 Guard(void ExCCamera::ZoomOut(void))
    00170         m_Zoom++;
    00171         if(m_Zoom>=m_ZoomMax)m_Zoom=m_ZoomMax-1;
    00172 UnGuard
    00173 }
    00174
    00175 void ExCCamera::ZoomIn(float zoom)
    00176 {
    00177 Guard(void ExCCamera::ZoomIn(float zoom))
    00178         m_Zoom=m_Zoom-zoom;
    00179         if(m_Zoom<=m_ZoomMin)m_Zoom=m_ZoomMin+1;
    00180 UnGuard
    00181 }
    00182
    00183 void ExCCamera::ZoomOut(float zoom)
    00184 {
    00185 Guard(void ExCCamera::ZoomOut(float zoom))
    00186         m_Zoom=m_Zoom+m_ZoomMax;
    00187         if(m_Zoom>=m_ZoomMax)m_Zoom=m_ZoomMax-1;
    00188 UnGuard
    00189 }
    00190
    00191 void ExCCamera::SetZoom(float zoom)
    00192 {
    00193 Guard(void ExCCamera::SetZoom(float zoom))
    00194 UnGuard
    00195 }
    00196
    00197 void ExCCamera::SetZoomMax(float zoom)
    00198 {
    00199 Guard(void ExCCamera::SetZoomMax(float zoom))
    00200 UnGuard
    00201 }
    00202
    00203 void ExCCamera::SetZoomMin(float zoom)
    00204 {
    00205 Guard(void ExCCamera::SetZoomMin(float zoom))
    00206 UnGuard
    00207 }
    00208
    00209 void ExCCamera::SetClipFar(float clip)
    00210 {
    00211         Guard(void ExCCamera::SetClipFar(float clip))
    00212         m_ClipFar=clip;
    00213         if(m_ClipFar<m_ClipNear)m_ClipFar=m_ClipNear+1;
    00214 UnGuard
    00215 }
    00216
    00217 void ExCCamera::SetClipNear(float clip)
    00218 {
    00219         Guard(void ExCCamera::SetClipNear(float clip))
    00220         m_ClipNear=clip;
    00221         if(m_ClipNear>m_ClipFar)m_ClipNear=m_ClipFar-1;
    00222 UnGuard
    00223 }
    00224
    00225 void ExCCamera::Process(void)
    00226 {
    00227 Guard(void ExCCamera::Process(void))
    00228         for(unsigned i=0;i<m_VecAction.size();i++)
    00229         {
    00230                 switch(m_VecAction.at(i))
    00231                 {
    00232                 case ROTATE_Z_UP:m_Angle.IncZ();break;
    00233                 case ROTATE_Y_UP:m_Angle.IncY();break;
    00234                 case ROTATE_X_UP:m_Angle.IncX();break;
    00235                 case ROTATE_Z_DOWN:m_Angle.DecZ();break;
    00236                 case ROTATE_Y_DOWN:m_Angle.DecY();break;
    00237                 case ROTATE_X_DOWN:m_Angle.DecX();break;
    00238                 case ZOOM_UP:ZoomOut();break;
    00239                 case ZOOM_DOWN:ZoomIn();break;
    00240                 case SPEED_UP:break;
    00241                 case SPEED_DOWN:break;
    00242                 }
    00243         }
    00244 UnGuard
    00245 }
    00246
    00247 void ExCCamera::StartAction(int Action)
    00248 {
    00249 Guard(void ExCCamera::StartAction(int Action))
    00250         m_VecAction.push_back(Action);
    00251 UnGuard
    00252 }
    00253
    00254 void ExCCamera::StopAction(int Action)
    00255 {
    00256 Guard(void ExCCamera::StopAction(int Action))
    00257         for(m_ItVecAction=m_VecAction.begin();m_ItVecAction!=m_VecAction.end();m_ItVecAction++)
    00258         {
    00259                 if(*m_ItVecAction==Action){m_VecAction.erase(m_ItVecAction);return;}
    00260         }
    00261 UnGuard
    00262 }