Someone

2245                                                 int x2;
2246                                                 for (x2=0;x2<scaled_square_size;x2++)
2247                                                 {
2248                                                         // map x1, y1, x2 and y2 for the current scaled sqaure
2249                                                         mx1 = mx + x2;
2250                                                         my1 = my + y2;
2251                                                         mx2 = mx + x2 + 1;
2252                                                         my2 = my + y2 + 1;
2253                                                         // world x1, y1, x2 and y2
2254                                                         wx1 = (float) mx1 * world_square_size - terrainOffsetX;
2255                                                         wy1 = (float) my1 * world_square_size - terrainOffsetY;
2256                                                         wx2 = (float) mx2 * world_square_size - terrainOffsetX;
2257                                                         wy2 = (float) my2 * world_square_size - terrainOffsetY;
2258                                                  
2259                                                         // render it!
2260                                                         glColor4f(calc_colours[y2][x2+1].r,
2261                                                                   calc_colours[y2][x2+1].g,
2262                                                                   calc_colours[y2][x2+1].b,
2263                                                                   calc_colours[y2][x2+1].a);
2264                                                         glNormal3f(calc_normals[y2][x2+1].x, calc_normals[y2][x2+1].y, calc_normals[y2][x2+1].z);
2265                                                         glTexCoord2f(calc_texcoords[y2][x2+1].u, calc_texcoords[y2][x2+1].v);
2266                                                         glVertex3f(wx2, calc_heights[y2][x2+1], wy1);
2267 
2268                                                         glColor4f(calc_colours[y2+1][x2+1].r,
2269                                                                   calc_colours[y2+1][x2+1].g,
2270                                                                   calc_colours[y2+1][x2+1].b,
2271                                                                   calc_colours[y2+1][x2+1].a);
2272                                                         glNormal3f(calc_normals[y2+1][x2+1].x, calc_normals[y2+1][x2+1].y, calc_normals[y2+1][x2+1].z);
2273                                                         glTexCoord2f(calc_texcoords[y2+1][x2+1].u, calc_texcoords[y2+1][x2+1].v);
2274                                                         glVertex3f(wx2, calc_heights[y2+1][x2+1], wy2);
2275 
2276 
2277                                                 }