contrib/bobtoolz/DBobView.cpp

   1 /*\r
   2 BobToolz plugin for GtkRadiant\r
   3 Copyright (C) 2001 Gordon Biggans\r
   4 \r
   5 This library is free software; you can redistribute it and/or\r
   6 modify it under the terms of the GNU Lesser General Public\r
   7 License as published by the Free Software Foundation; either\r
   8 version 2.1 of the License, or (at your option) any later version.\r
   9 \r
  10 This library is distributed in the hope that it will be useful,\r
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU\r
  13 Lesser General Public License for more details.\r
  14 \r
  15 You should have received a copy of the GNU Lesser General Public\r
  16 License along with this library; if not, write to the Free Software\r
  17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA\r
  18 */\r
  19 \r
  20 // BobView.cpp: implementation of the DBobView class.\r
  21 //\r
  22 //////////////////////////////////////////////////////////////////////\r
  23 \r
  24 #include "StdAfx.h"\r
  25 #include "DBobView.h"\r
  26 #include "DListener.h"\r
  27 #include "misc.h"\r
  28 #include "funchandlers.h"\r
  29 \r
  30 //////////////////////////////////////////////////////////////////////\r
  31 // Construction/Destruction\r
  32 //////////////////////////////////////////////////////////////////////\r
  33 \r
  34 DBobView::DBobView()\r
  35 {\r
  36         nPathCount = 0;\r
  37         refCount = 1;\r
  38         \r
  39         m_bHooked = FALSE;\r
  40 \r
  41         path = NULL;\r
  42         eyes = NULL;\r
  43 \r
  44         boundingShow = BOUNDS_APEX;\r
  45 }\r
  46 \r
  47 DBobView::~DBobView()\r
  48 {\r
  49         if(path)\r
  50                 delete[] path;\r
  51 \r
  52         // oops forgot to remove our eyes, was causing access violation when it tried\r
  53         // to talk to it's parent\r
  54         if(eyes)\r
  55                 delete eyes;\r
  56 \r
  57         if(m_bHooked)\r
  58                 UnRegister();\r
  59 \r
  60         g_PathView = NULL;\r
  61 }\r
  62 \r
  63 //////////////////////////////////////////////////////////////////////\r
  64 // Implementation\r
  65 //////////////////////////////////////////////////////////////////////\r
  66 \r
  67 void DBobView::Draw2D(VIEWTYPE vt)\r
  68 {\r
  69         if(!path)\r
  70                 return;\r
  71 \r
  72         g_QglTable.m_pfn_qglPushAttrib(GL_ALL_ATTRIB_BITS);\r
  73 \r
  74         g_QglTable.m_pfn_qglDisable(GL_BLEND);\r
  75         g_QglTable.m_pfn_qglEnable(GL_LINE_SMOOTH);\r
  76 \r
  77         g_QglTable.m_pfn_qglPushMatrix();\r
  78         \r
  79         switch(vt)\r
  80         {\r
  81         case XY:\r
  82                 break;\r
  83         case XZ:\r
  84                 g_QglTable.m_pfn_qglRotatef(270.0f, 1.0f, 0.0f, 0.0f);\r
  85                 break;\r
  86         case YZ:\r
  87                 g_QglTable.m_pfn_qglRotatef(270.0f, 1.0f, 0.0f, 0.0f);\r
  88                 g_QglTable.m_pfn_qglRotatef(270.0f, 0.0f, 0.0f, 1.0f);\r
  89                 break;\r
  90         }\r
  91 \r
  92         g_QglTable.m_pfn_qglLineWidth(1.0f);\r
  93         g_QglTable.m_pfn_qglColor4f(1.0f, 0.0f, 0.0f, 1.0f);\r
  94 \r
  95         int i;\r
  96 \r
  97         g_QglTable.m_pfn_qglBegin(GL_LINE_STRIP);\r
  98 \r
  99         for(i = 0; i < nPathCount; i++)\r
 100                 g_QglTable.m_pfn_qglVertex3fv(path[i]);\r
 101 \r
 102         g_QglTable.m_pfn_qglEnd();\r
 103 \r
 104         if(m_bShowExtra)\r
 105         {\r
 106                 // +mars\r
 107                 // for the bounding box stuff\r
 108                 g_QglTable.m_pfn_qglColor4f(0.25f, 0.75f, 0.75f, 1.0f);\r
 109 \r
 110                 g_QglTable.m_pfn_qglTranslatef( 16.0f, 16.0f, 28.0f );\r
 111 \r
 112                 g_QglTable.m_pfn_qglBegin( GL_LINE_STRIP );\r
 113         \r
 114                         for ( i = 0; i < nPathCount; i++ )\r
 115                                 g_QglTable.m_pfn_qglVertex3fv( path[i] );\r
 116 \r
 117                 g_QglTable.m_pfn_qglEnd();\r
 118         \r
 119         // ---------------\r
 120 \r
 121                 g_QglTable.m_pfn_qglTranslatef( -16.0f, -16.0f, -28.0f );       // back to where we were\r
 122                 g_QglTable.m_pfn_qglTranslatef( -16.0f, 16.0f, 28.0f );         // move to new postion\r
 123         \r
 124                 g_QglTable.m_pfn_qglBegin( GL_LINE_STRIP );\r
 125 \r
 126                         for ( i = 0; i < nPathCount; i++ )\r
 127                                 g_QglTable.m_pfn_qglVertex3fv( path[i] );\r
 128 \r
 129                 g_QglTable.m_pfn_qglEnd();\r
 130 \r
 131         // --------------\r
 132 \r
 133                 g_QglTable.m_pfn_qglTranslatef( 16.0f, -16.0f, -28.0f );                // back to where we were\r
 134                 g_QglTable.m_pfn_qglTranslatef( 16.0f, -16.0f, -28.0f );                // new pos\r
 135 \r
 136                 g_QglTable.m_pfn_qglBegin( GL_LINE_STRIP );\r
 137                 \r
 138                         for ( i = 0; i < nPathCount; i++ )\r
 139                                 g_QglTable.m_pfn_qglVertex3fv( path[i] );\r
 140 \r
 141                 g_QglTable.m_pfn_qglEnd();\r
 142 \r
 143         // ----------------\r
 144 \r
 145                 g_QglTable.m_pfn_qglTranslatef( -16.0f, 16.0f, 28.0f );         // back to where we were\r
 146 \r
 147 /*              g_QglTable.m_pfn_qglTranslatef( -16.0f, -16.0f, -28.0f );               // new pos\r
 148 \r
 149                 g_QglTable.m_pfn_qglBegin( GL_LINE_STRIP );\r
 150                 \r
 151                 if ( boundingShow == BOUNDS_ALL )\r
 152                 {\r
 153                         for ( i = 0; i < nPathCount; i++ )\r
 154                                 g_QglTable.m_pfn_qglVertex3fv( path[i] );\r
 155                 }\r
 156                 else if ( boundingShow == BOUNDS_APEX )\r
 157                 {\r
 158                         for ( i = (nPathCount/4); i < (nPathCount/4) * 3; i++ )\r
 159                                 g_QglTable.m_pfn_qglVertex3fv( path[i] );\r
 160                 }\r
 161 \r
 162                 g_QglTable.m_pfn_qglEnd();*/ // djbob: er, um doesn't really seem to do anyhting\r
 163         }\r
 164 \r
 165         // -mars\r
 166         \r
 167         g_QglTable.m_pfn_qglPopMatrix();\r
 168 \r
 169         g_QglTable.m_pfn_qglPopAttrib();\r
 170 }\r
 171 \r
 172 void DBobView::Draw3D()\r
 173 {\r
 174         if(!path)\r
 175                 return;\r
 176 \r
 177         g_QglTable.m_pfn_qglPushAttrib(GL_ALL_ATTRIB_BITS);\r
 178 \r
 179         g_QglTable.m_pfn_qglDisable(GL_BLEND);\r
 180         g_QglTable.m_pfn_qglEnable(GL_LINE_SMOOTH);\r
 181 \r
 182         g_QglTable.m_pfn_qglLineWidth(1.0f);\r
 183         g_QglTable.m_pfn_qglColor4f(1.0f, 0.0f, 0.0f, 1.0f);\r
 184 \r
 185         g_QglTable.m_pfn_qglBegin(GL_LINE_STRIP);\r
 186 \r
 187         for(int i = 0; i < nPathCount; i++)\r
 188                 g_QglTable.m_pfn_qglVertex3fv(path[i]);\r
 189 \r
 190         g_QglTable.m_pfn_qglEnd();\r
 191 \r
 192         if(m_bShowExtra)\r
 193         {\r
 194                 // +mars\r
 195                 // ahhh -- a nice C&P job :)\r
 196                 // for the bounding box stuff\r
 197                 g_QglTable.m_pfn_qglColor4f(0.25f, 0.75f, 0.75f, 1.0f);\r
 198 \r
 199                 g_QglTable.m_pfn_qglTranslatef( 16.0f, 16.0f, 28.0f );\r
 200 \r
 201                 g_QglTable.m_pfn_qglBegin( GL_LINE_STRIP );\r
 202                 \r
 203                 int i;  \r
 204                 for ( i = 0; i < nPathCount; i++ )\r
 205                         g_QglTable.m_pfn_qglVertex3fv( path[i] );\r
 206 \r
 207                 g_QglTable.m_pfn_qglEnd();\r
 208         \r
 209         // ---------------\r
 210 \r
 211                 g_QglTable.m_pfn_qglTranslatef( -16.0f, -16.0f, -28.0f );       // back to where we were\r
 212                 g_QglTable.m_pfn_qglTranslatef( -16.0f, 16.0f, 28.0f );         // move to new postion\r
 213         \r
 214                 g_QglTable.m_pfn_qglBegin( GL_LINE_STRIP );\r
 215                 \r
 216                         for ( i = 0; i < nPathCount; i++ )\r
 217                                 g_QglTable.m_pfn_qglVertex3fv( path[i] );\r
 218 \r
 219                 g_QglTable.m_pfn_qglEnd();\r
 220 \r
 221         // --------------\r
 222 \r
 223                 g_QglTable.m_pfn_qglTranslatef( 16.0f, -16.0f, -28.0f );                // back to where we were\r
 224                 g_QglTable.m_pfn_qglTranslatef( 16.0f, -16.0f, -28.0f );                // new pos\r
 225 \r
 226                 g_QglTable.m_pfn_qglBegin( GL_LINE_STRIP );\r
 227                 \r
 228                         for ( i = 0; i < nPathCount; i++ )\r
 229                                 g_QglTable.m_pfn_qglVertex3fv( path[i] );\r
 230 \r
 231                 g_QglTable.m_pfn_qglEnd();\r
 232 \r
 233         // ----------------\r
 234 \r
 235                 g_QglTable.m_pfn_qglTranslatef( -16.0f, 16.0f, 28.0f );         // back to where we were\r
 236                 g_QglTable.m_pfn_qglTranslatef( -16.0f, -16.0f, -28.0f );               // new pos\r
 237 \r
 238                 g_QglTable.m_pfn_qglBegin( GL_LINE_STRIP );\r
 239                 \r
 240                         for ( i = 0; i < nPathCount; i++ )\r
 241                                 g_QglTable.m_pfn_qglVertex3fv( path[i] );\r
 242 \r
 243                 g_QglTable.m_pfn_qglEnd();\r
 244         }\r
 245         // -mars\r
 246 \r
 247         g_QglTable.m_pfn_qglPopAttrib();\r
 248 }\r
 249 \r
 250 void DBobView::Register()\r
 251 {\r
 252         g_QglTable.m_pfnHookGL2DWindow( this );\r
 253         g_QglTable.m_pfnHookGL3DWindow( this );\r
 254         m_bHooked = TRUE;\r
 255 }\r
 256 \r
 257 void DBobView::UnRegister()\r
 258 {\r
 259         g_QglTable.m_pfnUnHookGL2DWindow( this );\r
 260         g_QglTable.m_pfnUnHookGL3DWindow( this );\r
 261         m_bHooked = FALSE;\r
 262 }\r
 263 \r
 264 void DBobView::SetPath(vec3_t *pPath)\r
 265 {\r
 266         if(path)\r
 267                 delete[] path;\r
 268 \r
 269         path = pPath;\r
 270 }\r
 271 \r
 272 #define LOCAL_GRAVITY -800.0f\r
 273 \r
 274 bool DBobView::CalculateTrajectory(vec3_t start, vec3_t apex, float multiplier, int points, float varGravity)\r
 275 {\r
 276         if(apex[2] <= start[2])\r
 277         {\r
 278                 SetPath(NULL);\r
 279                 return FALSE;\r
 280         }\r
 281         // ----think q3a actually would allow these\r
 282         //scrub that, coz the plugin wont :]\r
 283 \r
 284         vec3_t dist, speed;\r
 285         VectorSubtract(apex, start, dist);\r
 286 \r
 287         vec_t speed_z = (float)sqrt(-2*LOCAL_GRAVITY*dist[2]);\r
 288         float flight_time = -speed_z/LOCAL_GRAVITY;\r
 289 \r
 290 \r
 291         VectorScale(dist, 1/flight_time, speed);\r
 292         speed[2] = speed_z;\r
 293 \r
 294 //      Sys_Printf("Speed: (%.4f %.4f %.4f)\n", speed[0], speed[1], speed[2]);\r
 295 \r
 296         vec3_t* pPath = new vec3_t[points];\r
 297 \r
 298         float interval = multiplier*flight_time/points;\r
 299         for(int i = 0; i < points; i++)\r
 300         {\r
 301                 float ltime = interval*i;\r
 302 \r
 303                 VectorScale(speed, ltime, pPath[i]);\r
 304                 VectorAdd(pPath[i], start, pPath[i]);\r
 305 \r
 306                 // could do this all with vectors\r
 307                 // vGrav = {0, 0, -800.0f}\r
 308                 // VectorScale(vGrav, 0.5f*ltime*ltime, vAdd);\r
 309                 // VectorScale(speed, ltime, pPath[i]);\r
 310                 // _VectorAdd(pPath[i], start, pPath[i])\r
 311                 // _VectorAdd(pPath[i], vAdd, pPath[i])\r
 312 \r
 313                 pPath[i][2] = start[2] + (speed_z*ltime) + (varGravity*0.5f*ltime*ltime);\r
 314         }\r
 315 \r
 316         SetPath(pPath);\r
 317         return TRUE;\r
 318 }\r
 319 \r
 320 void DBobView::Begin(const char* trigger, const char *target, float multiplier, int points, float varGravity, bool bNoUpdate, bool bShowExtra)\r
 321 {\r
 322         strcpy(entTrigger, trigger);\r
 323         strcpy(entTarget, target);\r
 324 \r
 325         fMultiplier = multiplier;\r
 326         fVarGravity = varGravity;\r
 327         nPathCount = points;\r
 328         m_bShowExtra = bShowExtra;\r
 329 \r
 330         Register();\r
 331 \r
 332         if(UpdatePath())\r
 333         {\r
 334                 if(!bNoUpdate)\r
 335                 {\r
 336                         eyes = new DListener;\r
 337                         eyes->parent = this;\r
 338                         eyes->Register();\r
 339                 }\r
 340         }\r
 341         else\r
 342         {\r
 343                 Sys_ERROR("Initialization Failure in DBobView::Begin");\r
 344                 delete this;\r
 345         }\r
 346 }\r
 347 \r
 348 bool DBobView::UpdatePath()\r
 349 {\r
 350         vec3_t start, apex;\r
 351 \r
 352         if(GetEntityCentre(entTrigger, start))\r
 353         {\r
 354                 if(GetEntityCentre(entTarget, apex))\r
 355                 {\r
 356                         CalculateTrajectory(start, apex, fMultiplier, nPathCount, fVarGravity);\r
 357                         return TRUE;\r
 358                 }\r
 359         }\r
 360         return FALSE;\r
 361 }\r