| … | |
… | |
| 28 | #include <random_map.h> |
28 | #include <random_map.h> |
| 29 | #include <rproto.h> |
29 | #include <rproto.h> |
| 30 | #include <sproto.h> |
30 | #include <sproto.h> |
| 31 | |
31 | |
| 32 | #define CEDE coroapi::cede_to_tick () |
32 | #define CEDE coroapi::cede_to_tick () |
| 33 | |
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| 34 | static void symmetrize_layout (Layout &maze, random_map_params *RP); |
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| 35 | static void rotate_layout (Layout &maze, int rotation); |
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| 36 | |
33 | |
| 37 | noinline SV * |
34 | noinline SV * |
| 38 | random_map_params::get_sv (const char *option) const |
35 | random_map_params::get_sv (const char *option) const |
| 39 | { |
36 | { |
| 40 | SV **he = hv_fetch (hv, option, strlen (option), 0); |
37 | SV **he = hv_fetch (hv, option, strlen (option), 0); |
| … | |
… | |
| 169 | random_map_params::~random_map_params () |
166 | random_map_params::~random_map_params () |
| 170 | { |
167 | { |
| 171 | SvREFCNT_dec (hv); |
168 | SvREFCNT_dec (hv); |
| 172 | } |
169 | } |
| 173 | |
170 | |
| 174 | /* takes a map and makes it symmetric: adjusts Xsize and |
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| 175 | * Ysize to produce a symmetric map. |
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| 176 | */ |
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| 177 | static void |
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| 178 | symmetrize_layout (Layout &layout, random_map_params *RP) |
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| 179 | { |
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| 180 | if (RP->symmetry_used == SYMMETRY_NONE) |
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| 181 | return; |
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| 182 | |
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| 183 | Layout sym_layout ( |
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| 184 | RP->symmetry_used == SYMMETRY_X || RP->symmetry_used == SYMMETRY_XY ? layout.w * 2 - 3 : layout.w, |
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| 185 | RP->symmetry_used == SYMMETRY_Y || RP->symmetry_used == SYMMETRY_XY ? layout.h * 2 - 3 : layout.h |
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| 186 | ); |
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| 187 | |
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| 188 | if (RP->symmetry_used == SYMMETRY_X) |
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| 189 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
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| 190 | for (int j = 0; j < sym_layout.h; j++) |
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| 191 | { |
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| 192 | sym_layout[i ][j] = |
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| 193 | sym_layout[sym_layout.w - i - 1][j] = layout[i][j]; |
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| 194 | } |
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| 195 | |
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| 196 | if (RP->symmetry_used == SYMMETRY_Y) |
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| 197 | for (int i = 0; i < sym_layout.w; i++) |
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| 198 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
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| 199 | { |
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| 200 | sym_layout[i][j ] = |
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| 201 | sym_layout[i][sym_layout.h - j - 1] = layout[i][j]; |
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| 202 | } |
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| 203 | |
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| 204 | if (RP->symmetry_used == SYMMETRY_XY) |
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| 205 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
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| 206 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
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| 207 | { |
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| 208 | sym_layout[i ][j ] = |
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| 209 | sym_layout[i ][sym_layout.h - j - 1] = |
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| 210 | sym_layout[sym_layout.w - i - 1][j ] = |
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| 211 | sym_layout[sym_layout.w - i - 1][sym_layout.h - j - 1] = layout[i][j]; |
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| 212 | } |
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| 213 | |
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| 214 | /* need to run the isolation remover for some layouts */ |
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| 215 | switch (RP->map_layout_style) |
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| 216 | { |
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| 217 | case LAYOUT_ONION: |
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| 218 | case LAYOUT_SNAKE: |
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| 219 | case LAYOUT_SQUARE_SPIRAL: |
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| 220 | // safe |
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| 221 | break; |
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| 222 | |
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| 223 | default: |
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| 224 | sym_layout.isolation_remover (); |
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| 225 | break; |
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| 226 | } |
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| 227 | |
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| 228 | layout.swap (sym_layout); |
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| 229 | } |
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| 230 | |
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| 231 | /* takes a map and rotates it. This completes the |
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| 232 | onion layouts, making them possibly centered on any wall. |
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| 233 | It'll modify Xsize and Ysize if they're swapped. |
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| 234 | */ |
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| 235 | static void |
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| 236 | rotate_layout (Layout &layout, int rotation) |
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| 237 | { |
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| 238 | int w = layout.w; |
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| 239 | int h = layout.h; |
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| 240 | |
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| 241 | switch (rotation) |
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| 242 | { |
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| 243 | case 2: /* a reflection */ |
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| 244 | { |
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| 245 | Layout new_layout (w, h); |
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| 246 | |
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| 247 | for (int i = 0; i < w; i++) /* copy a reflection back */ |
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| 248 | for (int j = 0; j < h; j++) |
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| 249 | new_layout[i][j] = layout[w - i - 1][h - j - 1]; |
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| 250 | |
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| 251 | layout.swap (new_layout); |
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| 252 | } |
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| 253 | break; |
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| 254 | |
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| 255 | case 1: |
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| 256 | case 3: |
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| 257 | { |
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| 258 | Layout new_layout (h, w); |
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| 259 | |
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| 260 | if (rotation == 1) /* swap x and y */ |
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| 261 | for (int i = 0; i < w; i++) |
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| 262 | for (int j = 0; j < h; j++) |
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| 263 | new_layout[j][i] = layout[i][j]; |
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| 264 | |
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| 265 | if (rotation == 3) /* swap x and y */ |
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| 266 | for (int i = 0; i < w; i++) |
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| 267 | for (int j = 0; j < h; j++) |
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| 268 | new_layout[j][i] = layout[w - i - 1][h - j - 1]; |
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| 269 | |
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| 270 | layout.swap (new_layout); |
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| 271 | } |
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| 272 | break; |
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| 273 | } |
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| 274 | } |
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| 275 | |
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| 276 | /* checks the layout to see if I can stick a horizontal(dir = 0) wall |
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| 277 | (or vertical, dir == 1) |
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| 278 | here which ends up on other walls sensibly. */ |
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| 279 | static int |
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| 280 | can_make_wall (char **maze, int dx, int dy, int dir, random_map_params *RP) |
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| 281 | { |
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| 282 | int i1; |
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| 283 | int length = 0; |
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| 284 | |
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| 285 | /* dont make walls if we're on the edge. */ |
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| 286 | if (dx == 0 || dx == (RP->Xsize - 1) || dy == 0 || dy == (RP->Ysize - 1)) |
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| 287 | return -1; |
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| 288 | |
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| 289 | /* don't make walls if we're ON a wall. */ |
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| 290 | if (maze[dx][dy] != 0) |
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| 291 | return -1; |
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| 292 | |
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| 293 | if (dir == 0) /* horizontal */ |
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| 294 | { |
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| 295 | int y = dy; |
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| 296 | |
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| 297 | for (i1 = dx - 1; i1 > 0; i1--) |
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| 298 | { |
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| 299 | int sindex = surround_flag2 (maze, i1, y, RP); |
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| 300 | |
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| 301 | if (sindex == 1) |
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| 302 | break; |
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| 303 | if (sindex != 0) |
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| 304 | return -1; /* can't make horiz. wall here */ |
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| 305 | if (maze[i1][y] != 0) |
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| 306 | return -1; /* can't make horiz. wall here */ |
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| 307 | length++; |
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| 308 | } |
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| 309 | |
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| 310 | for (i1 = dx + 1; i1 < RP->Xsize - 1; i1++) |
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| 311 | { |
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| 312 | int sindex = surround_flag2 (maze, i1, y, RP); |
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| 313 | |
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| 314 | if (sindex == 2) |
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| 315 | break; |
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| 316 | if (sindex != 0) |
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| 317 | return -1; /* can't make horiz. wall here */ |
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| 318 | if (maze[i1][y] != 0) |
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| 319 | return -1; /* can't make horiz. wall here */ |
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| 320 | length++; |
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| 321 | } |
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| 322 | return length; |
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| 323 | } |
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| 324 | else |
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| 325 | { /* vertical */ |
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| 326 | int x = dx; |
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| 327 | |
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| 328 | for (i1 = dy - 1; i1 > 0; i1--) |
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| 329 | { |
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| 330 | int sindex = surround_flag2 (maze, x, i1, RP); |
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| 331 | |
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| 332 | if (sindex == 4) |
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| 333 | break; |
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| 334 | if (sindex != 0) |
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| 335 | return -1; /* can't make vert. wall here */ |
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| 336 | if (maze[x][i1] != 0) |
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| 337 | return -1; /* can't make horiz. wall here */ |
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| 338 | length++; |
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| 339 | } |
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| 340 | |
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| 341 | for (i1 = dy + 1; i1 < RP->Ysize - 1; i1++) |
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| 342 | { |
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| 343 | int sindex = surround_flag2 (maze, x, i1, RP); |
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| 344 | |
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| 345 | if (sindex == 8) |
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| 346 | break; |
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| 347 | if (sindex != 0) |
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| 348 | return -1; /* can't make verti. wall here */ |
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| 349 | if (maze[x][i1] != 0) |
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| 350 | return -1; /* can't make horiz. wall here */ |
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| 351 | length++; |
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| 352 | } |
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| 353 | |
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| 354 | return length; |
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| 355 | } |
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| 356 | |
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| 357 | return -1; |
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| 358 | } |
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| 359 | |
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| 360 | /* take a layout and make some rooms in it. |
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| 361 | --works best on onions.*/ |
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| 362 | static void |
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| 363 | roomify_layout (char **maze, random_map_params *RP) |
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| 364 | { |
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| 365 | int tries = RP->Xsize * RP->Ysize / 30; |
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| 366 | |
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| 367 | for (int ti = 0; ti < tries; ti++) |
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| 368 | { |
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| 369 | /* starting location for looking at creating a door */ |
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| 370 | int dx = rmg_rndm (RP->Xsize); |
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| 371 | int dy = rmg_rndm (RP->Ysize); |
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| 372 | |
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| 373 | /* results of checking on creating walls. */ |
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| 374 | int cx = can_make_wall (maze, dx, dy, 0, RP); /* horizontal */ |
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| 375 | int cy = can_make_wall (maze, dx, dy, 1, RP); /* vertical */ |
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| 376 | |
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| 377 | if (cx == -1) |
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| 378 | { |
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| 379 | if (cy != -1) |
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| 380 | make_wall (maze, dx, dy, 1); |
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| 381 | |
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| 382 | continue; |
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| 383 | } |
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| 384 | |
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| 385 | if (cy == -1) |
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| 386 | { |
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| 387 | make_wall (maze, dx, dy, 0); |
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| 388 | continue; |
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| 389 | } |
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| 390 | |
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| 391 | if (cx < cy) |
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| 392 | make_wall (maze, dx, dy, 0); |
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| 393 | else |
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| 394 | make_wall (maze, dx, dy, 1); |
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| 395 | } |
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| 396 | } |
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| 397 | |
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| 398 | int |
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| 399 | make_wall (char **maze, int x, int y, int dir) |
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| 400 | { |
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| 401 | maze[x][y] = 'D'; /* mark a door */ |
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| 402 | |
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| 403 | switch (dir) |
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| 404 | { |
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| 405 | case 0: /* horizontal */ |
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| 406 | { |
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| 407 | for (int i1 = x - 1; maze[i1][y] == 0; --i1) maze[i1][y] = '#'; |
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| 408 | for (int i1 = x + 1; maze[i1][y] == 0; ++i1) maze[i1][y] = '#'; |
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| 409 | break; |
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| 410 | } |
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| 411 | case 1: /* vertical */ |
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| 412 | { |
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| 413 | for (int i1 = y - 1; maze[x][i1] == 0; --i1) maze[x][i1] = '#'; |
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| 414 | for (int i1 = y + 1; maze[x][i1] == 0; ++i1) maze[x][i1] = '#'; |
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| 415 | break; |
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| 416 | } |
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| 417 | } |
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| 418 | |
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| 419 | return 0; |
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| 420 | } |
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| 421 | |
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| 422 | /* puts doors at appropriate locations in a layout. */ |
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| 423 | static void |
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| 424 | doorify_layout (char **maze, random_map_params *RP) |
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| 425 | { |
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| 426 | int ndoors = RP->Xsize * RP->Ysize / 60; /* reasonable number of doors. */ |
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| 427 | int doorlocs = 0; /* # of available doorlocations */ |
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| 428 | |
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| 429 | uint16 *doorlist_x = salloc<uint16> (RP->Xsize * RP->Ysize); |
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| 430 | uint16 *doorlist_y = salloc<uint16> (RP->Xsize * RP->Ysize); |
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| 431 | |
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| 432 | /* make a list of possible door locations */ |
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| 433 | for (int i = 1; i < RP->Xsize - 1; i++) |
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| 434 | for (int j = 1; j < RP->Ysize - 1; j++) |
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| 435 | { |
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| 436 | int sindex = surround_flag (maze, i, j, RP); |
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| 437 | |
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| 438 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
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| 439 | { |
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| 440 | doorlist_x[doorlocs] = i; |
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| 441 | doorlist_y[doorlocs] = j; |
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| 442 | doorlocs++; |
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| 443 | } |
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| 444 | } |
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| 445 | |
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| 446 | while (ndoors > 0 && doorlocs > 0) |
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| 447 | { |
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| 448 | int di = rmg_rndm (doorlocs); |
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| 449 | int i = doorlist_x[di]; |
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| 450 | int j = doorlist_y[di]; |
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| 451 | int sindex = surround_flag (maze, i, j, RP); |
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| 452 | |
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| 453 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
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| 454 | { |
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| 455 | maze[i][j] = 'D'; |
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| 456 | ndoors--; |
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| 457 | } |
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| 458 | |
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| 459 | /* reduce the size of the list */ |
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| 460 | doorlocs--; |
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| 461 | doorlist_x[di] = doorlist_x[doorlocs]; |
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| 462 | doorlist_y[di] = doorlist_y[doorlocs]; |
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| 463 | } |
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| 464 | |
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| 465 | sfree (doorlist_x, RP->Xsize * RP->Ysize); |
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| 466 | sfree (doorlist_y, RP->Xsize * RP->Ysize); |
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| 467 | } |
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| 468 | |
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| 469 | /* function selects the layout function and gives it whatever |
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| 470 | arguments it needs. */ |
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| 471 | void |
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| 472 | Layout::generate (random_map_params *RP) |
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| 473 | { |
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| 474 | switch (RP->map_layout_style) |
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| 475 | { |
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| 476 | case LAYOUT_ONION: |
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| 477 | map_gen_onion (*this, RP->layoutoptions1, RP->layoutoptions2); |
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| 478 | |
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| 479 | if (!(rmg_rndm (3)) && !(RP->layoutoptions1 & (RMOPT_WALLS_ONLY | RMOPT_WALL_OFF))) |
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| 480 | roomify_layout (*this, RP); |
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| 481 | |
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| 482 | break; |
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| 483 | |
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| 484 | case LAYOUT_MAZE: |
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| 485 | maze_gen (*this, RP->get_iv ("maze_type", rmg_rndm (4))); |
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| 486 | |
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| 487 | if (!(rmg_rndm (2))) |
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| 488 | doorify_layout (*this, RP); |
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| 489 | |
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| 490 | break; |
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| 491 | |
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| 492 | case LAYOUT_SPIRAL: |
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| 493 | map_gen_spiral (*this, RP->layoutoptions1); |
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| 494 | |
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| 495 | if (!(rmg_rndm (2))) |
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| 496 | doorify_layout (*this, RP); |
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| 497 | |
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| 498 | break; |
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| 499 | |
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| 500 | case LAYOUT_ROGUELIKE: |
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| 501 | /* Don't put symmetry in rogue maps. There isn't much reason to |
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| 502 | * do so in the first place (doesn't make it any more interesting), |
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| 503 | * but more importantly, the symmetry code presumes we are symmetrizing |
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| 504 | * spirals, or maps with lots of passages - making a symmetric rogue |
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| 505 | * map fails because its likely that the passages the symmetry process |
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| 506 | * creates may not connect the rooms. |
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| 507 | */ |
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| 508 | RP->symmetry_used = SYMMETRY_NONE; |
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| 509 | roguelike_layout_gen (*this, RP->layoutoptions1); |
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| 510 | /* no doorifying... done already */ |
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| 511 | break; |
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| 512 | |
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| 513 | case LAYOUT_SNAKE: |
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| 514 | make_snake_layout (*this, RP->layoutoptions1); |
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| 515 | |
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| 516 | if (rmg_rndm (2)) |
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| 517 | roomify_layout (*this, RP); |
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| 518 | |
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| 519 | break; |
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| 520 | |
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| 521 | case LAYOUT_SQUARE_SPIRAL: |
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| 522 | make_square_spiral_layout (*this, RP->layoutoptions1); |
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| 523 | |
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| 524 | if (rmg_rndm (2)) |
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| 525 | roomify_layout (*this, RP); |
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| 526 | |
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| 527 | break; |
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| 528 | |
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| 529 | case LAYOUT_CAVE: |
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| 530 | gen_cave (RP->get_iv ("cave_type", rmg_rndm (4))); |
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| 531 | |
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| 532 | if (!(rmg_rndm (2))) |
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| 533 | doorify_layout (*this, RP); |
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| 534 | |
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| 535 | break; |
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| 536 | |
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| 537 | default: |
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| 538 | abort (); |
|
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| 539 | } |
|
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| 540 | |
|
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| 541 | /* rotate the layout randomly */ |
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| 542 | rotate_layout (*this, rmg_rndm (4)); |
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| 543 | |
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| 544 | symmetrize_layout (*this, RP); |
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| 545 | |
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| 546 | #if 0 |
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| 547 | print ();//D |
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| 548 | #endif |
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| 549 | |
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| 550 | if (RP->expand2x) |
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| 551 | expand2x (*this); |
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| 552 | } |
|
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| 553 | |
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| 554 | bool |
171 | bool |
| 555 | maptile::generate_random_map (random_map_params *RP) |
172 | maptile::generate_random_map (random_map_params *RP) |
| 556 | { |
173 | { |
| 557 | RP->Xsize = RP->xsize; |
174 | RP->Xsize = RP->xsize; |
| 558 | RP->Ysize = RP->ysize; |
175 | RP->Ysize = RP->ysize; |
