| 301 | */ |
| 302 | |
| 303 | SelPtr SelectObjectsInBox (int objtype, SHORT x0, SHORT y0, SHORT x1, SHORT y1) |
| 304 | { |
| 305 | SHORT n, m; |
| 306 | SelPtr list; |
| 307 | |
| 308 | list = NULL; |
| 309 | if (x1 < x0) |
| 310 | { |
| 311 | n = x0; x0 = x1; x1 = n; |
| 312 | } |
| 313 | if (y1 < y0) |
| 314 | { |
| 315 | n = y0; y0 = y1; y1 = n; |
| 316 | } |
| 317 | |
| 318 | switch (objtype) |
| 319 | { |
| 320 | case OBJ_THINGS: |
| 321 | for (n = 0; n < NumThings; n++) |
| 322 | { |
| 323 | SHORT xpos = Things[ n].xpos; |
| 324 | SHORT ypos = Things[ n].ypos; |
| 325 | if (xpos >= x0 && xpos <= x1 && ypos >= y0 && ypos <= y1) |
| 326 | { |
| 327 | SelectObject (&list, n); |
| 328 | } |
| 329 | } |
| 330 | break; |
| 331 | |
| 332 | case OBJ_VERTEXES: |
| 333 | for (n = 0; n < NumVertexes; n++) |
| 334 | { |
| 335 | SHORT x = Vertexes[ n].x; |
| 336 | SHORT y = Vertexes[ n].y; |
| 337 | if (x >= x0 && x <= x1 && y >= y0 && y <= y1) |
| 338 | { |
| 339 | SelectObject( &list, n); |
| 340 | } |
| 341 | } |
| 342 | break; |
| 343 | |
| 344 | case OBJ_LINEDEFS: |
| 345 | for (n = 0; n < NumLineDefs; n++) |
| 346 | { |
| 347 | SHORT x, y; |
| 348 | /* the two ends of the line must be in the box */ |
| 349 | m = LineDefs[n].start; |
| 350 | assert (m >= 0 && m < NumVertexes); |
| 351 | x = Vertexes[ m].x; |
| 352 | y = Vertexes[ m].y; |
| 353 | if (x < x0 || x > x1 || y < y0 || y > y1) |
| 354 | { |
| 355 | continue; |
| 356 | } |
| 357 | m = LineDefs[n].end; |
| 358 | assert (m >= 0 && m < NumVertexes); |
| 359 | x = Vertexes[ m].x; |
| 360 | y = Vertexes[ m].y; |
no test coverage detected