| … | |
… | |
| 23 | |
23 | |
| 24 | #include <global.h> |
24 | #include <global.h> |
| 25 | #include <random_map.h> |
25 | #include <random_map.h> |
| 26 | #include <rproto.h> |
26 | #include <rproto.h> |
| 27 | |
27 | |
|
|
28 | void |
| 28 | Layout::Layout (int w, int h) |
29 | layout::alloc (int w, int h) |
| 29 | : w(w), h(h) |
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| 30 | { |
30 | { |
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31 | assert (sizeof (cell) == 1); |
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32 | |
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33 | this->w = w; |
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34 | this->h = h; |
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35 | |
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36 | // we store the layout in a single contiguous memory layout |
|
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37 | // first part consists of pointers to each column, followed |
|
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38 | // by the actual columns (not rows!) |
| 31 | int size = (sizeof (char *) + sizeof (char) * h) * w; |
39 | int size = (sizeof (cell *) + sizeof (cell) * h) * w; |
| 32 | |
40 | |
| 33 | col = (char **)salloc<char> (size); |
41 | data = (cell **)salloc<char> (size); |
| 34 | |
42 | |
| 35 | char *data = (char *)(col + w); |
43 | cell *p = (cell *)(data + w); |
| 36 | |
44 | |
| 37 | for (int x = w; x--; ) |
45 | for (int x = w; x--; ) |
| 38 | col [x] = data + x * h; |
46 | data [x] = p + x * h; |
| 39 | } |
47 | } |
| 40 | |
48 | |
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49 | layout::layout (int w, int h) |
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50 | { |
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51 | alloc (w, h); |
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52 | } |
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53 | |
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54 | layout::layout (layout ©) |
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55 | { |
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56 | alloc (copy.w, copy.h); |
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57 | |
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58 | memcpy (data [0], copy.data [0], sizeof (cell) * h * w); |
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59 | } |
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60 | |
| 41 | Layout::~Layout () |
61 | layout::~layout () |
| 42 | { |
62 | { |
| 43 | int size = (sizeof (char *) + sizeof (char) * h) * w; |
63 | int size = (sizeof (cell *) + sizeof (cell) * h) * w; |
| 44 | |
64 | |
| 45 | sfree ((char *)col, size); |
65 | sfree ((char *)data, size); |
| 46 | } |
66 | } |
| 47 | |
67 | |
| 48 | void |
68 | void |
| 49 | Layout::fill (char fill) |
69 | layout::fill (char fill) |
| 50 | { |
70 | { |
| 51 | memset (col [0], fill, w * h); |
71 | memset (data [0], fill, w * h); |
| 52 | } |
72 | } |
| 53 | |
73 | |
| 54 | void |
74 | void |
| 55 | Layout::rect (int x1, int y1, int x2, int y2, char fill) |
75 | layout::rect (int x1, int y1, int x2, int y2, char fill) |
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76 | { |
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77 | --x2; |
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78 | |
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79 | memset (data [x1] + y1, fill, y2 - y1); |
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80 | memset (data [x2] + y1, fill, y2 - y1); |
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81 | |
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82 | while (++x1 < x2) |
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83 | data [x1][y1] = data [x1][y2 - 1] = fill; |
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84 | } |
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85 | |
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86 | void |
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87 | layout::fill_rect (int x1, int y1, int x2, int y2, char fill) |
| 56 | { |
88 | { |
| 57 | for (; x1 < x2; ++x1) |
89 | for (; x1 < x2; ++x1) |
| 58 | memset (col [x1] + y1, fill, y2 - y1); |
90 | memset (data [x1] + y1, fill, y2 - y1); |
| 59 | } |
91 | } |
| 60 | |
92 | |
| 61 | void Layout::border (char fill) |
93 | void layout::border (char fill) |
| 62 | { |
94 | { |
| 63 | for (int i = 0; i < w; i++) col [i][0] = col [i][h - 1] = fill; |
95 | rect (0, 0, w, h, fill); |
| 64 | for (int j = 0; j < h; j++) col [0][j] = col [w - 1][j] = fill; |
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| 65 | } |
96 | } |
| 66 | |
97 | |
| 67 | void |
98 | void |
| 68 | Layout::fill_rand (int percent) |
99 | layout::fill_rand (int percent) |
| 69 | { |
100 | { |
| 70 | percent = lerp (percent, 0, 100, 0, 256); |
101 | percent = lerp (percent, 0, 100, 0, 256); |
| 71 | |
102 | |
| 72 | for (int x = w - 1; --x > 0; ) |
103 | for (int x = w - 1; --x > 0; ) |
| 73 | for (int y = h - 1; --y > 0; ) |
104 | for (int y = h - 1; --y > 0; ) |
| 74 | col [x][y] = rmg_rndm (256) > percent ? 0 : '#'; |
105 | data [x][y] = rmg_rndm (256) > percent ? 0 : '#'; |
| 75 | } |
106 | } |
| 76 | |
107 | |
| 77 | ///////////////////////////////////////////////////////////////////////////// |
108 | ///////////////////////////////////////////////////////////////////////////// |
| 78 | |
109 | |
| 79 | // erode by cellular automata |
110 | // erode by cellular automata |
| 80 | void |
111 | void |
| 81 | Layout::erode_1_2 (int c1, int c2, int repeat) |
112 | layout::erode_1_2 (int c1, int c2, int repeat) |
| 82 | { |
113 | { |
| 83 | Layout neu (w, h); |
114 | layout neu (w, h); |
| 84 | |
115 | |
| 85 | while (repeat--) |
116 | while (repeat--) |
| 86 | { |
117 | { |
| 87 | for (int x = 0; x < w; ++x) |
118 | for (int x = 0; x < w; ++x) |
| 88 | { |
119 | { |
| … | |
… | |
| 104 | for (int i = array_length (dds); i--; ) |
135 | for (int i = array_length (dds); i--; ) |
| 105 | { |
136 | { |
| 106 | int nx = x + dds [i][0]; |
137 | int nx = x + dds [i][0]; |
| 107 | int ny = y + dds [i][1]; |
138 | int ny = y + dds [i][1]; |
| 108 | |
139 | |
| 109 | if (!IN_RANGE_EXC (nx, 0, w) || !IN_RANGE_EXC (ny, 0, h) || !col [nx][ny]) |
140 | if (!IN_RANGE_EXC (nx, 0, w) || !IN_RANGE_EXC (ny, 0, h) || !data [nx][ny]) |
| 110 | { |
141 | { |
| 111 | n1 += dds [i][2]; |
142 | n1 += dds [i][2]; |
| 112 | n2++; |
143 | n2++; |
| 113 | } |
144 | } |
| 114 | } |
145 | } |
| … | |
… | |
| 122 | } |
153 | } |
| 123 | |
154 | |
| 124 | ///////////////////////////////////////////////////////////////////////////// |
155 | ///////////////////////////////////////////////////////////////////////////// |
| 125 | |
156 | |
| 126 | void |
157 | void |
| 127 | Layout::print () const |
158 | layout::print () const |
| 128 | { |
159 | { |
| 129 | for (int y = 0; y < h; y++) |
160 | for (int y = 0; y < h; y++) |
| 130 | { |
161 | { |
| 131 | for (int x = 0; x < w; x++) |
162 | for (int x = 0; x < w; x++) |
| 132 | { |
163 | { |
| 133 | U8 c = (U8)col [x][y]; |
164 | U8 c = (U8)data [x][y]; |
| 134 | |
165 | |
| 135 | if (!c) |
166 | if (!c) |
| 136 | c = ' '; |
167 | c = ' '; |
| 137 | else if (c < 10) |
168 | else if (c < 10) |
| 138 | c += '0'; |
169 | c += '0'; |
| … | |
… | |
| 151 | ///////////////////////////////////////////////////////////////////////////// |
182 | ///////////////////////////////////////////////////////////////////////////// |
| 152 | // isolation remover - ensures single connected area |
183 | // isolation remover - ensures single connected area |
| 153 | |
184 | |
| 154 | typedef fixed_stack<point> pointlist; |
185 | typedef fixed_stack<point> pointlist; |
| 155 | |
186 | |
| 156 | static noinline void |
187 | static void noinline |
| 157 | push_flood_fill (Layout &dist, pointlist &seeds, int x, int y) |
188 | push_flood_fill (layout &dist, pointlist &seeds, int x, int y) |
| 158 | { |
189 | { |
| 159 | if (dist [x][y]) |
190 | if (dist [x][y]) |
| 160 | return; |
191 | return; |
| 161 | |
192 | |
| 162 | while (y > 0 && !dist [x][y - 1]) |
193 | while (y > 0 && !dist [x][y - 1]) |
| … | |
… | |
| 172 | ++y; |
203 | ++y; |
| 173 | } |
204 | } |
| 174 | |
205 | |
| 175 | while (--y >= y0) |
206 | while (--y >= y0) |
| 176 | { |
207 | { |
| 177 | if (x > 0) push_flood_fill (dist, seeds, x - 1, y); |
208 | if (x > 0 && !dist [x - 1][y]) push_flood_fill (dist, seeds, x - 1, y); |
| 178 | if (x < dist.w - 1) push_flood_fill (dist, seeds, x + 1, y); |
209 | if (x < dist.w - 1 && !dist [x + 1][y]) push_flood_fill (dist, seeds, x + 1, y); |
| 179 | } |
210 | } |
| 180 | } |
211 | } |
| 181 | |
212 | |
| 182 | static inline void |
213 | static inline void |
| 183 | make_tunnel (Layout &dist, pointlist &seeds, int x, int y, U8 d) |
214 | make_tunnel (layout &dist, pointlist &seeds, int x, int y, U8 d) |
| 184 | { |
215 | { |
| 185 | for (;;) |
216 | for (;;) |
| 186 | { |
217 | { |
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218 | point neigh[4]; |
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219 | int ncnt = 0; |
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220 | |
| 187 | if (x > 1 && U8 (dist [x - 1][y]) < d && dist [x - 1][y] > 1) |
221 | if (x > 1 && U8 (dist [x - 1][y]) <= d && dist [x - 1][y] > 1) neigh [ncnt++] = point (x - 1, y); |
| 188 | --x; |
|
|
| 189 | else if (x < dist.w - 2 && U8 (dist [x + 1][y]) < d && dist [x + 1][y] > 1) |
222 | if (x < dist.w - 2 && U8 (dist [x + 1][y]) <= d && dist [x + 1][y] > 1) neigh [ncnt++] = point (x + 1, y); |
| 190 | ++x; |
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|
| 191 | else if (y > 1 && U8 (dist [x][y - 1]) < d && dist [x][y - 1] > 1) |
223 | if (y > 1 && U8 (dist [x][y - 1]) <= d && dist [x][y - 1] > 1) neigh [ncnt++] = point (x, y - 1); |
| 192 | --y; |
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|
| 193 | else if (y < dist.h - 2 && U8 (dist [x][y + 1]) < d && dist [x][y + 1] > 1) |
224 | if (y < dist.h - 2 && U8 (dist [x][y + 1]) <= d && dist [x][y + 1] > 1) neigh [ncnt++] = point (x, y + 1); |
| 194 | ++y; |
225 | |
| 195 | else |
226 | if (!ncnt) |
| 196 | break; |
227 | return; |
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228 | |
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229 | point &p = neigh [rmg_rndm (ncnt)]; |
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230 | |
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231 | seeds.push (p); |
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232 | |
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233 | x = p.x; |
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234 | y = p.y; |
| 197 | |
235 | |
| 198 | d = dist [x][y]; |
236 | d = dist [x][y]; |
| 199 | dist [x][y] = 1; |
237 | dist [x][y] = 1; |
| 200 | seeds.push (point (x, y)); |
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|
| 201 | } |
238 | } |
| 202 | } |
239 | } |
| 203 | |
240 | |
| 204 | static void inline |
241 | static void inline |
| 205 | maybe_push (Layout &dist, pointlist &seeds, int x, int y, U8 d) |
242 | maybe_push (layout &dist, pointlist &seeds, int x, int y, U8 d) |
| 206 | { |
243 | { |
| 207 | char &D = dist [x][y]; |
244 | char &D = dist [x][y]; |
| 208 | |
245 | |
| 209 | if (U8 (D) > d) // if wall and higher distance, lower distance |
246 | if (U8 (D) > d) // if wall and higher distance, lower distance |
| 210 | D = d; |
247 | D = d; |
| … | |
… | |
| 212 | return; |
249 | return; |
| 213 | |
250 | |
| 214 | seeds.push (point (x, y)); |
251 | seeds.push (point (x, y)); |
| 215 | } |
252 | } |
| 216 | |
253 | |
| 217 | void |
254 | // isolation remover, works on a "distance" map |
| 218 | Layout::isolation_remover (bool dirty) |
255 | // the map must be initialised with 0 == rooms, 255 = walls |
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256 | static void noinline |
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257 | isolation_remover (layout &dist) |
| 219 | { |
258 | { |
| 220 | Layout dist (w, h); |
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| 221 | |
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| 222 | // dist contains |
259 | // dist contains |
| 223 | // 0 == invisited rooms |
260 | // 0 == invisited rooms |
| 224 | // 1 == visited rooms |
261 | // 1 == visited rooms |
| 225 | // 2+ shortest distance to random near room |
262 | // 2+ shortest distance to random near room |
| 226 | |
263 | |
| 227 | // phase 1, initialise dist array, find seed |
264 | // phase 1, find seed |
| 228 | int cnt = 0; |
265 | int cnt = 0; |
| 229 | int x, y; |
266 | int x, y; |
| 230 | |
267 | |
| 231 | for (int i = 0; i < w; ++i) |
268 | for (int i = 0; i < dist.w; ++i) |
| 232 | for (int j = 0; j < h; ++j) |
269 | for (int j = 0; j < dist.h; ++j) |
| 233 | { |
270 | if (!dist [i][j] && !rmg_rndm (++cnt)) |
| 234 | if (col [i][j] == '#') |
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| 235 | dist [i][j] = U8 (255); |
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| 236 | else |
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| 237 | { |
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| 238 | dist [i][j] = 0; |
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| 239 | if (!rmg_rndm (++cnt)) |
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| 240 | x = i, y = j; |
271 | x = i, y = j; |
| 241 | } |
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| 242 | } |
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| 243 | |
272 | |
| 244 | if (!cnt) |
273 | if (!cnt) |
| 245 | { |
274 | { |
| 246 | // map is completely massive, this is not good, |
275 | // map is completely massive, this is not good, |
| 247 | // so make it empty instead. |
276 | // so make it empty instead. |
| 248 | clear (); |
277 | dist.clear (); |
| 249 | border (); |
278 | dist.border (255); |
| 250 | return; |
279 | return; |
| 251 | } |
280 | } |
| 252 | |
281 | |
| 253 | fixed_stack<point> seeds (w * h * 5); |
282 | fixed_stack<point> seeds (dist.w * dist.h * 5); |
| 254 | |
283 | |
| 255 | // found first free space - picking the first one gives |
284 | // found first free space - picking the first one gives |
| 256 | // us a slight bias for tunnels, but usually you won't |
285 | // us a slight bias for tunnels, but usually you won't |
| 257 | // notice that in-game |
286 | // notice that in-game |
| 258 | seeds.push (point (x, y)); |
287 | seeds.push (point (x, y)); |
| … | |
… | |
| 270 | y = p.y; |
299 | y = p.y; |
| 271 | |
300 | |
| 272 | if (!dist [x][y]) |
301 | if (!dist [x][y]) |
| 273 | { |
302 | { |
| 274 | // found new isolated area, make tunnel |
303 | // found new isolated area, make tunnel |
| 275 | if (!dirty) |
|
|
| 276 | push_flood_fill (dist, seeds, x, y); |
304 | push_flood_fill (dist, seeds, x, y); |
| 277 | |
|
|
| 278 | make_tunnel (dist, seeds, x, y, 255); |
305 | make_tunnel (dist, seeds, x, y, 255); |
| 279 | |
|
|
| 280 | if (dirty) |
|
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| 281 | push_flood_fill (dist, seeds, x, y); |
|
|
| 282 | } |
306 | } |
| 283 | else |
307 | else |
| 284 | { |
308 | { |
| 285 | // nothing here, continue to expand |
309 | // nothing here, continue to expand |
| 286 | U8 d = U8 (dist [x][y]) + 1; |
310 | U8 d = U8 (dist [x][y]) + 1; |
| … | |
… | |
| 289 | if (x > 0) maybe_push (dist, seeds, x - 1, y, d); |
313 | if (x > 0) maybe_push (dist, seeds, x - 1, y, d); |
| 290 | if (y < dist.h - 1) maybe_push (dist, seeds, x, y + 1, d); |
314 | if (y < dist.h - 1) maybe_push (dist, seeds, x, y + 1, d); |
| 291 | if (y > 0) maybe_push (dist, seeds, x, y - 1, d); |
315 | if (y > 0) maybe_push (dist, seeds, x, y - 1, d); |
| 292 | } |
316 | } |
| 293 | } |
317 | } |
|
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318 | } |
|
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319 | |
|
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320 | void |
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321 | layout::isolation_remover () |
|
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322 | { |
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323 | layout dist (w, h); |
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324 | |
|
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325 | for (int x = 0; x < w; ++x) |
|
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326 | for (int y = 0; y < h; ++y) |
|
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327 | dist [x][y] = data [x][y] == '#' ? U8 (255) : 0; |
|
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328 | |
|
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329 | ::isolation_remover (dist); |
| 294 | |
330 | |
| 295 | // now copy the tunnels over |
331 | // now copy the tunnels over |
| 296 | for (int x = 0; x < w; ++x) |
332 | for (int x = 0; x < w; ++x) |
| 297 | for (int y = 0; y < h; ++y) |
333 | for (int y = 0; y < h; ++y) |
| 298 | if (col [x][y] == '#' && dist [x][y] == 1) |
334 | if (data [x][y] == '#' && dist [x][y] == 1) |
| 299 | col [x][y] = 0; |
335 | data [x][y] = 0; |
| 300 | } |
336 | } |
| 301 | |
337 | |
| 302 | ///////////////////////////////////////////////////////////////////////////// |
338 | ///////////////////////////////////////////////////////////////////////////// |
| 303 | |
339 | |
| 304 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
340 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
| 305 | void |
341 | void |
| 306 | Layout::gen_cave (int subtype) |
342 | layout::gen_cave (int subtype) |
| 307 | { |
343 | { |
| 308 | switch (subtype) |
344 | switch (subtype) |
| 309 | { |
345 | { |
| 310 | // a rough cave |
346 | // a rough cave |
| 311 | case 0: |
347 | case 0: |
| 312 | fill_rand (rmg_rndm (80, 95)); |
348 | fill_rand (rmg_rndm (85, 97)); |
| 313 | break; |
349 | break; |
| 314 | |
350 | |
| 315 | // corridors |
351 | // corridors |
| 316 | case 1: |
352 | case 1: |
| 317 | fill_rand (rmg_rndm (5, 40)); |
353 | fill_rand (rmg_rndm (5, 40)); |
| … | |
… | |
| 341 | |
377 | |
| 342 | ///////////////////////////////////////////////////////////////////////////// |
378 | ///////////////////////////////////////////////////////////////////////////// |
| 343 | |
379 | |
| 344 | //+GPL |
380 | //+GPL |
| 345 | |
381 | |
| 346 | /* puts doors at appropriate locations in a layout. */ |
382 | /* puts doors at appropriate locations in a maze. */ |
| 347 | void |
383 | void |
| 348 | Layout::doorify () |
384 | layout::doorify () |
| 349 | { |
385 | { |
| 350 | int ndoors = w * h / 60; /* reasonable number of doors. */ |
386 | int ndoors = w * h / 60; /* reasonable number of doors. */ |
| 351 | int doorlocs = 0; /* # of available doorlocations */ |
387 | int doorlocs = 0; /* # of available doorlocations */ |
| 352 | |
388 | |
| 353 | uint16 *doorlist_x = salloc<uint16> (w * h); |
389 | uint16 *doorlist_x = salloc<uint16> (w * h); |
| … | |
… | |
| 374 | int j = doorlist_y [di]; |
410 | int j = doorlist_y [di]; |
| 375 | int sindex = surround_flag (*this, i, j); |
411 | int sindex = surround_flag (*this, i, j); |
| 376 | |
412 | |
| 377 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
413 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
| 378 | { |
414 | { |
| 379 | col [i][j] = 'D'; |
415 | data [i][j] = 'D'; |
| 380 | ndoors--; |
416 | ndoors--; |
| 381 | } |
417 | } |
| 382 | |
418 | |
| 383 | /* reduce the size of the list */ |
419 | /* reduce the size of the list */ |
| 384 | doorlocs--; |
420 | doorlocs--; |
| … | |
… | |
| 392 | |
428 | |
| 393 | /* takes a map and makes it symmetric: adjusts Xsize and |
429 | /* takes a map and makes it symmetric: adjusts Xsize and |
| 394 | * Ysize to produce a symmetric map. |
430 | * Ysize to produce a symmetric map. |
| 395 | */ |
431 | */ |
| 396 | void |
432 | void |
| 397 | Layout::symmetrize (int symmetry) |
433 | layout::symmetrize (int symmetry) |
| 398 | { |
434 | { |
| 399 | if (symmetry == SYMMETRY_NONE) |
435 | if (symmetry == SYMMETRY_NONE) |
| 400 | return; |
436 | return; |
| 401 | |
437 | |
| 402 | Layout sym_layout ( |
438 | layout sym_layout ( |
| 403 | symmetry == SYMMETRY_X || symmetry == SYMMETRY_XY ? w * 2 - 3 : w, |
439 | symmetry == SYMMETRY_X || symmetry == SYMMETRY_XY ? w * 2 - 3 : w, |
| 404 | symmetry == SYMMETRY_Y || symmetry == SYMMETRY_XY ? h * 2 - 3 : h |
440 | symmetry == SYMMETRY_Y || symmetry == SYMMETRY_XY ? h * 2 - 3 : h |
| 405 | ); |
441 | ); |
| 406 | |
442 | |
| 407 | if (symmetry == SYMMETRY_X) |
443 | if (symmetry == SYMMETRY_X) |
| 408 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
444 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
| 409 | for (int j = 0; j < sym_layout.h; j++) |
445 | for (int j = 0; j < sym_layout.h; j++) |
| 410 | { |
446 | { |
| 411 | sym_layout[i ][j] = |
447 | sym_layout[i ][j] = |
| 412 | sym_layout[sym_layout.w - i - 1][j] = col[i][j]; |
448 | sym_layout[sym_layout.w - i - 1][j] = data [i][j]; |
| 413 | } |
449 | } |
| 414 | |
450 | |
| 415 | if (symmetry == SYMMETRY_Y) |
451 | if (symmetry == SYMMETRY_Y) |
| 416 | for (int i = 0; i < sym_layout.w; i++) |
452 | for (int i = 0; i < sym_layout.w; i++) |
| 417 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
453 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
| 418 | { |
454 | { |
| 419 | sym_layout[i][j ] = |
455 | sym_layout[i][j ] = |
| 420 | sym_layout[i][sym_layout.h - j - 1] = col[i][j]; |
456 | sym_layout[i][sym_layout.h - j - 1] = data [i][j]; |
| 421 | } |
457 | } |
| 422 | |
458 | |
| 423 | if (symmetry == SYMMETRY_XY) |
459 | if (symmetry == SYMMETRY_XY) |
| 424 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
460 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
| 425 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
461 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
| 426 | { |
462 | { |
| 427 | sym_layout[i ][j ] = |
463 | sym_layout[i ][j ] = |
| 428 | sym_layout[i ][sym_layout.h - j - 1] = |
464 | sym_layout[i ][sym_layout.h - j - 1] = |
| 429 | sym_layout[sym_layout.w - i - 1][j ] = |
465 | sym_layout[sym_layout.w - i - 1][j ] = |
| 430 | sym_layout[sym_layout.w - i - 1][sym_layout.h - j - 1] = col[i][j]; |
466 | sym_layout[sym_layout.w - i - 1][sym_layout.h - j - 1] = data [i][j]; |
| 431 | } |
467 | } |
| 432 | |
468 | |
| 433 | /* need to run the isolation remover for some layouts */ |
469 | /* need to run the isolation remover for some layouts */ |
| 434 | #if 0 |
470 | #if 0 |
| 435 | switch (RP->map_layout_style) |
471 | switch (RP->map_layout_style) |
| … | |
… | |
| 451 | } |
487 | } |
| 452 | |
488 | |
| 453 | //-GPL |
489 | //-GPL |
| 454 | |
490 | |
| 455 | void |
491 | void |
| 456 | Layout::rotate (int rotation) |
492 | layout::rotate (int rotation) |
| 457 | { |
493 | { |
| 458 | switch (rotation & 3) |
494 | switch (rotation & 3) |
| 459 | { |
495 | { |
| 460 | case 2: /* a reflection */ |
496 | case 2: /* a reflection */ |
| 461 | { |
497 | { |
| 462 | Layout new_layout (w, h); |
498 | layout new_layout (w, h); |
| 463 | |
499 | |
| 464 | for (int i = 0; i < w; i++) /* copy a reflection back */ |
500 | for (int i = 0; i < w; i++) /* copy a reflection back */ |
| 465 | for (int j = 0; j < h; j++) |
501 | for (int j = 0; j < h; j++) |
| 466 | new_layout [i][j] = col [w - i - 1][h - j - 1]; |
502 | new_layout [i][j] = data [w - i - 1][h - j - 1]; |
| 467 | |
503 | |
| 468 | swap (new_layout); |
504 | swap (new_layout); |
| 469 | } |
505 | } |
| 470 | break; |
506 | break; |
| 471 | |
507 | |
| 472 | case 1: |
508 | case 1: |
| 473 | case 3: |
509 | case 3: |
| 474 | { |
510 | { |
| 475 | Layout new_layout (h, w); |
511 | layout new_layout (h, w); |
| 476 | |
512 | |
| 477 | if (rotation == 1) /* swap x and y */ |
513 | if (rotation == 1) /* swap x and y */ |
| 478 | for (int i = 0; i < w; i++) |
514 | for (int i = 0; i < w; i++) |
| 479 | for (int j = 0; j < h; j++) |
515 | for (int j = 0; j < h; j++) |
| 480 | new_layout [j][i] = col [i][j]; |
516 | new_layout [j][i] = data [i][j]; |
| 481 | |
517 | |
| 482 | if (rotation == 3) /* swap x and y */ |
518 | if (rotation == 3) /* swap x and y */ |
| 483 | for (int i = 0; i < w; i++) |
519 | for (int i = 0; i < w; i++) |
| 484 | for (int j = 0; j < h; j++) |
520 | for (int j = 0; j < h; j++) |
| 485 | new_layout [j][i] = col [w - i - 1][h - j - 1]; |
521 | new_layout [j][i] = data [w - i - 1][h - j - 1]; |
| 486 | |
522 | |
| 487 | swap (new_layout); |
523 | swap (new_layout); |
| 488 | } |
524 | } |
| 489 | break; |
525 | break; |
| 490 | } |
526 | } |
| … | |
… | |
| 493 | ///////////////////////////////////////////////////////////////////////////// |
529 | ///////////////////////////////////////////////////////////////////////////// |
| 494 | |
530 | |
| 495 | //+GPL |
531 | //+GPL |
| 496 | |
532 | |
| 497 | /* |
533 | /* |
| 498 | * Expands a layout by 2x in each dimension. |
534 | * Expands a maze by 2x in each dimension. |
| 499 | * H. S. Teoh |
535 | * H. S. Teoh |
| 500 | */ |
536 | */ |
| 501 | |
537 | |
| 502 | /* Copy the old tile X into the new one at location (i*2, j*2) and |
538 | /* Copy the old tile X into the new one at location (i*2, j*2) and |
| 503 | * fill up the rest of the 2x2 result with \0: |
539 | * fill up the rest of the 2x2 result with \0: |
| 504 | * X ---> X \0 |
540 | * X ---> X \0 |
| 505 | * \0 \0 |
541 | * \0 \0 |
| 506 | */ |
542 | */ |
| 507 | static void inline |
543 | static void inline |
| 508 | expand_misc (Layout &newlayout, int i, int j, Layout &layout) |
544 | expand_misc (layout &newlayout, int i, int j, layout &maze) |
| 509 | { |
545 | { |
| 510 | newlayout[i * 2 + rmg_rndm (1)][j * 2 + rmg_rndm (1)] = layout[i][j]; |
546 | newlayout[i * 2 + rmg_rndm (1)][j * 2 + rmg_rndm (1)] = maze[i][j]; |
| 511 | /* (Note: no need to reset rest of 2x2 area to \0 because calloc does that |
547 | /* (Note: no need to reset rest of 2x2 area to \0 because calloc does that |
| 512 | * for us.) */ |
548 | * for us.) */ |
| 513 | } |
549 | } |
| 514 | |
550 | |
| 515 | /* Returns a bitmap that represents which squares on the right and bottom |
551 | /* Returns a bitmap that represents which squares on the right and bottom |
| … | |
… | |
| 518 | * 2 match on (i, j+1) |
554 | * 2 match on (i, j+1) |
| 519 | * 4 match on (i+1, j+1) |
555 | * 4 match on (i+1, j+1) |
| 520 | * and the possible combinations thereof. |
556 | * and the possible combinations thereof. |
| 521 | */ |
557 | */ |
| 522 | static int noinline |
558 | static int noinline |
| 523 | calc_pattern (char ch, Layout &layout, int i, int j) |
559 | calc_pattern (char ch, layout &maze, int i, int j) |
| 524 | { |
560 | { |
| 525 | int pattern = 0; |
561 | int pattern = 0; |
| 526 | |
562 | |
| 527 | if (i + 1 < layout.w && layout[i + 1][j] == ch) |
563 | if (i + 1 < maze.w && maze[i + 1][j] == ch) |
| 528 | pattern |= 1; |
564 | pattern |= 1; |
| 529 | |
565 | |
| 530 | if (j + 1 < layout.h) |
566 | if (j + 1 < maze.h) |
| 531 | { |
567 | { |
| 532 | if (layout[i][j + 1] == ch) |
568 | if (maze[i][j + 1] == ch) |
| 533 | pattern |= 2; |
569 | pattern |= 2; |
| 534 | |
570 | |
| 535 | if (i + 1 < layout.w && layout[i + 1][j + 1] == ch) |
571 | if (i + 1 < maze.w && maze[i + 1][j + 1] == ch) |
| 536 | pattern |= 4; |
572 | pattern |= 4; |
| 537 | } |
573 | } |
| 538 | |
574 | |
| 539 | return pattern; |
575 | return pattern; |
| 540 | } |
576 | } |
| … | |
… | |
| 542 | /* Expand a wall. This function will try to sensibly connect the resulting |
578 | /* Expand a wall. This function will try to sensibly connect the resulting |
| 543 | * wall to adjacent wall squares, so that the result won't have disconnected |
579 | * wall to adjacent wall squares, so that the result won't have disconnected |
| 544 | * walls. |
580 | * walls. |
| 545 | */ |
581 | */ |
| 546 | static void inline |
582 | static void inline |
| 547 | expand_wall (Layout &newlayout, int i, int j, Layout &layout) |
583 | expand_wall (layout &newlayout, int i, int j, layout &maze) |
| 548 | { |
584 | { |
| 549 | int wall_pattern = calc_pattern ('#', layout, i, j); |
585 | int wall_pattern = calc_pattern ('#', maze, i, j); |
| 550 | int door_pattern = calc_pattern ('D', layout, i, j); |
586 | int door_pattern = calc_pattern ('D', maze, i, j); |
| 551 | int both_pattern = wall_pattern | door_pattern; |
587 | int both_pattern = wall_pattern | door_pattern; |
| 552 | |
588 | |
| 553 | newlayout[i * 2][j * 2] = '#'; |
589 | newlayout[i * 2][j * 2] = '#'; |
| 554 | |
590 | |
| 555 | if (i + 1 < layout.w) |
591 | if (i + 1 < maze.w) |
| 556 | { |
592 | { |
| 557 | if (both_pattern & 1) |
593 | if (both_pattern & 1) |
| 558 | { /* join walls/doors to the right */ |
594 | { /* join walls/doors to the right */ |
| 559 | /* newlayout[i*2+1][j*2] = '#'; */ |
595 | /* newlayout[i*2+1][j*2] = '#'; */ |
| 560 | newlayout[i * 2 + 1][j * 2] = layout[i + 1][j]; |
596 | newlayout[i * 2 + 1][j * 2] = maze[i + 1][j]; |
| 561 | } |
597 | } |
| 562 | } |
598 | } |
| 563 | |
599 | |
| 564 | if (j + 1 < layout.h) |
600 | if (j + 1 < maze.h) |
| 565 | { |
601 | { |
| 566 | if (both_pattern & 2) |
602 | if (both_pattern & 2) |
| 567 | { /* join walls/doors to the bottom */ |
603 | { /* join walls/doors to the bottom */ |
| 568 | /* newlayout[i*2][j*2+1] = '#'; */ |
604 | /* newlayout[i*2][j*2+1] = '#'; */ |
| 569 | newlayout[i * 2][j * 2 + 1] = layout[i][j + 1]; |
605 | newlayout[i * 2][j * 2 + 1] = maze[i][j + 1]; |
| 570 | } |
606 | } |
| 571 | |
607 | |
| 572 | if (wall_pattern == 7) |
608 | if (wall_pattern == 7) |
| 573 | { /* if orig layout is a 2x2 wall block, |
609 | { /* if orig maze is a 2x2 wall block, |
| 574 | * we fill the result with walls. */ |
610 | * we fill the result with walls. */ |
| 575 | newlayout[i * 2 + 1][j * 2 + 1] = '#'; |
611 | newlayout[i * 2 + 1][j * 2 + 1] = '#'; |
| 576 | } |
612 | } |
| 577 | } |
613 | } |
| 578 | } |
614 | } |
| … | |
… | |
| 580 | /* This function will try to sensibly connect doors so that they meet up with |
616 | /* This function will try to sensibly connect doors so that they meet up with |
| 581 | * adjacent walls. Note that it will also presumptuously delete (ignore) doors |
617 | * adjacent walls. Note that it will also presumptuously delete (ignore) doors |
| 582 | * that it doesn't know how to correctly expand. |
618 | * that it doesn't know how to correctly expand. |
| 583 | */ |
619 | */ |
| 584 | static void inline |
620 | static void inline |
| 585 | expand_door (Layout &newlayout, int i, int j, Layout &layout) |
621 | expand_door (layout &newlayout, int i, int j, layout &maze) |
| 586 | { |
622 | { |
| 587 | int wall_pattern = calc_pattern ('#', layout, i, j); |
623 | int wall_pattern = calc_pattern ('#', maze, i, j); |
| 588 | int door_pattern = calc_pattern ('D', layout, i, j); |
624 | int door_pattern = calc_pattern ('D', maze, i, j); |
| 589 | int join_pattern; |
625 | int join_pattern; |
| 590 | |
626 | |
| 591 | /* Doors "like" to connect to walls more than other doors. If there is |
627 | /* Doors "like" to connect to walls more than other doors. If there is |
| 592 | * a wall and another door, this door will connect to the wall and |
628 | * a wall and another door, this door will connect to the wall and |
| 593 | * disconnect from the other door. */ |
629 | * disconnect from the other door. */ |
| … | |
… | |
| 596 | else |
632 | else |
| 597 | join_pattern = door_pattern; |
633 | join_pattern = door_pattern; |
| 598 | |
634 | |
| 599 | newlayout[i * 2][j * 2] = 'D'; |
635 | newlayout[i * 2][j * 2] = 'D'; |
| 600 | |
636 | |
| 601 | if (i + 1 < layout.w) |
637 | if (i + 1 < maze.w) |
| 602 | if (join_pattern & 1) |
638 | if (join_pattern & 1) |
| 603 | /* there is a door/wall to the right */ |
639 | /* there is a door/wall to the right */ |
| 604 | newlayout[i * 2 + 1][j * 2] = 'D'; |
640 | newlayout[i * 2 + 1][j * 2] = 'D'; |
| 605 | |
641 | |
| 606 | if (j + 1 < layout.h) |
642 | if (j + 1 < maze.h) |
| 607 | if (join_pattern & 2) |
643 | if (join_pattern & 2) |
| 608 | /* there is a door/wall below */ |
644 | /* there is a door/wall below */ |
| 609 | newlayout[i * 2][j * 2 + 1] = 'D'; |
645 | newlayout[i * 2][j * 2 + 1] = 'D'; |
| 610 | } |
646 | } |
| 611 | |
647 | |
| 612 | void |
648 | void |
| 613 | Layout::expand2x () |
649 | layout::expand2x () |
| 614 | { |
650 | { |
| 615 | Layout new_layout (w * 2 - 1, h * 2 - 1); |
651 | layout new_layout (w * 2 - 1, h * 2 - 1); |
| 616 | |
652 | |
| 617 | new_layout.clear (); |
653 | new_layout.clear (); |
| 618 | |
654 | |
| 619 | for (int i = 0; i < w; i++) |
655 | for (int i = 0; i < w; i++) |
| 620 | for (int j = 0; j < h; j++) |
656 | for (int j = 0; j < h; j++) |
| 621 | switch (col [i][j]) |
657 | switch (data [i][j]) |
| 622 | { |
658 | { |
| 623 | case '#': expand_wall (new_layout, i, j, *this); break; |
659 | case '#': expand_wall (new_layout, i, j, *this); break; |
| 624 | case 'D': expand_door (new_layout, i, j, *this); break; |
660 | case 'D': expand_door (new_layout, i, j, *this); break; |
| 625 | default: expand_misc (new_layout, i, j, *this); break; |
661 | default: expand_misc (new_layout, i, j, *this); break; |
| 626 | } |
662 | } |
| … | |
… | |
| 628 | swap (new_layout); |
664 | swap (new_layout); |
| 629 | } |
665 | } |
| 630 | |
666 | |
| 631 | ///////////////////////////////////////////////////////////////////////////// |
667 | ///////////////////////////////////////////////////////////////////////////// |
| 632 | |
668 | |
| 633 | /* checks the layout to see if I can stick a horizontal(dir = 0) wall |
669 | /* checks the maze to see if I can stick a horizontal(dir = 0) wall |
| 634 | (or vertical, dir == 1) |
670 | (or vertical, dir == 1) |
| 635 | here which ends up on other walls sensibly. */ |
671 | here which ends up on other walls sensibly. */ |
| 636 | static int |
672 | static int |
| 637 | can_make_wall (const Layout &maze, int dx, int dy, int dir) |
673 | can_make_wall (const layout &maze, int dx, int dy, int dir) |
| 638 | { |
674 | { |
| 639 | int i1; |
675 | int i1; |
| 640 | int length = 0; |
676 | int length = 0; |
| 641 | |
677 | |
| 642 | /* dont make walls if we're on the edge. */ |
678 | /* dont make walls if we're on the edge. */ |
| … | |
… | |
| 729 | |
765 | |
| 730 | return 0; |
766 | return 0; |
| 731 | } |
767 | } |
| 732 | |
768 | |
| 733 | void |
769 | void |
| 734 | Layout::roomify () |
770 | layout::roomify () |
| 735 | { |
771 | { |
| 736 | int tries = w * h / 30; |
772 | int tries = w * h / 30; |
| 737 | |
773 | |
| 738 | for (int ti = 0; ti < tries; ti++) |
774 | for (int ti = 0; ti < tries; ti++) |
| 739 | { |
775 | { |
| … | |
… | |
| 766 | } |
802 | } |
| 767 | } |
803 | } |
| 768 | |
804 | |
| 769 | ///////////////////////////////////////////////////////////////////////////// |
805 | ///////////////////////////////////////////////////////////////////////////// |
| 770 | |
806 | |
| 771 | /* function selects the layout function and gives it whatever |
807 | /* function selects the maze function and gives it whatever |
| 772 | arguments it needs. */ |
808 | arguments it needs. */ |
| 773 | void |
809 | void |
| 774 | Layout::generate (random_map_params *RP) |
810 | layout::generate (random_map_params *RP) |
| 775 | { |
811 | { |
| 776 | switch (RP->map_layout_style) |
812 | switch (RP->map_layout_style) |
| 777 | { |
813 | { |
| 778 | case LAYOUT_ONION: |
814 | case LAYOUT_ONION: |
| 779 | map_gen_onion (*this, RP->layoutoptions1, RP->layoutoptions2); |
815 | map_gen_onion (*this, RP->layoutoptions1, RP->layoutoptions2); |
| … | |
… | |
| 838 | |
874 | |
| 839 | default: |
875 | default: |
| 840 | abort (); |
876 | abort (); |
| 841 | } |
877 | } |
| 842 | |
878 | |
| 843 | /* rotate the layout randomly */ |
879 | /* rotate the maze randomly */ |
| 844 | rotate (rmg_rndm (4)); |
880 | rotate (rmg_rndm (4)); |
| 845 | |
881 | |
| 846 | symmetrize (RP->symmetry_used); |
882 | symmetrize (RP->symmetry_used); |
| 847 | |
883 | |
| 848 | #if 0 |
884 | #if 0 |
| … | |
… | |
| 860 | { |
896 | { |
| 861 | demo () |
897 | demo () |
| 862 | { |
898 | { |
| 863 | rmg_rndm.seed (time (0)); |
899 | rmg_rndm.seed (time (0)); |
| 864 | |
900 | |
| 865 | for(int i=1;i<10;i) |
901 | for(int i=1;i<100;i++) |
| 866 | { |
902 | { |
| 867 | Layout maze (10, 10); |
903 | layout maze (40, 25); |
| 868 | maze.fill_rand (90); |
904 | maze.fill_rand (85); |
| 869 | maze.border (); |
905 | maze.border (); |
| 870 | maze.isolation_remover (); |
906 | maze.isolation_remover (); |
| 871 | maze.doorify (); |
|
|
| 872 | maze.symmetrize (rmg_rndm (2, 4)); |
|
|
| 873 | maze.rotate (rmg_rndm (4)); |
|
|
| 874 | maze.expand2x (); |
|
|
| 875 | maze.print (); |
907 | maze.print (); |
| 876 | } |
908 | } |
| 877 | |
909 | |
| 878 | exit (1); |
910 | exit (1); |
| 879 | } |
911 | } |
