| … | |
… | |
| 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 | |
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28 | void |
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29 | layout::alloc (int w, int h) |
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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!) |
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39 | size = (sizeof (cell *) + sizeof (cell) * h) * w; |
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40 | data = (cell **)salloc<char> (size); |
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41 | |
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42 | cell *p = (cell *)(data + w); |
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43 | |
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44 | for (int x = 0; x < w; ++x) |
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45 | data [x] = p + x * h; |
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46 | } |
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47 | |
| 28 | Layout::Layout (int w, int h) |
48 | layout::layout (int w, int h) |
| 29 | : w(w), h(h) |
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| 30 | { |
49 | { |
| 31 | int size = (sizeof (char *) + sizeof (char) * h) * w; |
50 | alloc (w, h); |
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51 | } |
| 32 | |
52 | |
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53 | layout::layout (layout ©) |
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54 | { |
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55 | alloc (copy.w, copy.h); |
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56 | |
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57 | memcpy (data [0], copy.data [0], sizeof (cell) * h * w); |
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58 | } |
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59 | |
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60 | layout::layout (layout &orig, int x1, int y1, int x2, int y2) |
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61 | { |
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62 | w = x2 - x1; |
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63 | h = y2 - y1; |
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64 | |
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65 | // we only allocate space for the pointers |
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66 | size = sizeof (cell *) * w; |
| 33 | col = (char **)salloc<char> (size); |
67 | data = (cell **)salloc<char> (size); |
| 34 | |
68 | |
| 35 | char *data = (char *)(col + w); |
69 | // and now we point back into the original layout |
| 36 | |
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| 37 | for (int x = w; x--; ) |
70 | for (int x = 0; x < w; ++x) |
| 38 | col [x] = data + x * h; |
71 | data [x] = orig.data [x + x1] + y1; |
| 39 | } |
72 | } |
| 40 | |
73 | |
| 41 | Layout::~Layout () |
74 | layout::~layout () |
| 42 | { |
75 | { |
| 43 | int size = (sizeof (char *) + sizeof (char) * h) * w; |
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| 44 | |
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| 45 | sfree ((char *)col, size); |
76 | sfree ((char *)data, size); |
| 46 | } |
77 | } |
| 47 | |
78 | |
| 48 | void |
79 | void |
| 49 | Layout::fill (char fill) |
80 | layout::fill (char fill) |
| 50 | { |
81 | { |
| 51 | memset (col [0], fill, w * h); |
82 | memset (data [0], fill, w * h); |
| 52 | } |
83 | } |
| 53 | |
84 | |
| 54 | void |
85 | void |
| 55 | Layout::rect (int x1, int y1, int x2, int y2, char fill) |
86 | layout::rect (int x1, int y1, int x2, int y2, char fill) |
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87 | { |
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88 | --x2; |
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89 | |
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90 | memset (data [x1] + y1, fill, y2 - y1); |
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91 | memset (data [x2] + y1, fill, y2 - y1); |
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92 | |
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93 | while (++x1 < x2) |
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94 | data [x1][y1] = data [x1][y2 - 1] = fill; |
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95 | } |
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96 | |
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97 | void |
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98 | layout::fill_rect (int x1, int y1, int x2, int y2, char fill) |
| 56 | { |
99 | { |
| 57 | for (; x1 < x2; ++x1) |
100 | for (; x1 < x2; ++x1) |
| 58 | memset (col [x1] + y1, fill, y2 - y1); |
101 | memset (data [x1] + y1, fill, y2 - y1); |
| 59 | } |
102 | } |
| 60 | |
103 | |
| 61 | void Layout::border (char fill) |
104 | void layout::border (char fill) |
| 62 | { |
105 | { |
| 63 | for (int i = 0; i < w; i++) col [i][0] = col [i][h - 1] = fill; |
106 | 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 | } |
107 | } |
| 66 | |
108 | |
| 67 | void |
109 | void |
| 68 | Layout::fill_rand (int percent) |
110 | layout::fill_rand (int percent) |
| 69 | { |
111 | { |
| 70 | percent = lerp (percent, 0, 100, 0, 256); |
112 | percent = lerp (percent, 0, 100, 0, 256); |
| 71 | |
113 | |
| 72 | for (int x = w - 1; --x > 0; ) |
114 | for (int x = w - 1; --x > 0; ) |
| 73 | for (int y = h - 1; --y > 0; ) |
115 | for (int y = h - 1; --y > 0; ) |
| 74 | col [x][y] = rmg_rndm (256) > percent ? 0 : '#'; |
116 | data [x][y] = rmg_rndm (256) > percent ? 0 : '#'; |
| 75 | } |
117 | } |
| 76 | |
118 | |
| 77 | ///////////////////////////////////////////////////////////////////////////// |
119 | ///////////////////////////////////////////////////////////////////////////// |
| 78 | |
120 | |
| 79 | // erode by cellular automata |
121 | // erode by cellular automata |
| 80 | void |
122 | void |
| 81 | Layout::erode_1_2 (int c1, int c2, int repeat) |
123 | layout::erode_1_2 (int c1, int c2, int repeat) |
| 82 | { |
124 | { |
| 83 | Layout neu (w, h); |
125 | layout neu (w, h); |
| 84 | |
126 | |
| 85 | while (repeat--) |
127 | while (repeat--) |
| 86 | { |
128 | { |
| 87 | for (int x = 0; x < w; ++x) |
129 | for (int x = 0; x < w; ++x) |
| 88 | { |
130 | { |
| … | |
… | |
| 104 | for (int i = array_length (dds); i--; ) |
146 | for (int i = array_length (dds); i--; ) |
| 105 | { |
147 | { |
| 106 | int nx = x + dds [i][0]; |
148 | int nx = x + dds [i][0]; |
| 107 | int ny = y + dds [i][1]; |
149 | int ny = y + dds [i][1]; |
| 108 | |
150 | |
| 109 | if (!IN_RANGE_EXC (nx, 0, w) || !IN_RANGE_EXC (ny, 0, h) || !col [nx][ny]) |
151 | if (!IN_RANGE_EXC (nx, 0, w) || !IN_RANGE_EXC (ny, 0, h) || !data [nx][ny]) |
| 110 | { |
152 | { |
| 111 | n1 += dds [i][2]; |
153 | n1 += dds [i][2]; |
| 112 | n2++; |
154 | n2++; |
| 113 | } |
155 | } |
| 114 | } |
156 | } |
| … | |
… | |
| 122 | } |
164 | } |
| 123 | |
165 | |
| 124 | ///////////////////////////////////////////////////////////////////////////// |
166 | ///////////////////////////////////////////////////////////////////////////// |
| 125 | |
167 | |
| 126 | void |
168 | void |
| 127 | Layout::print () const |
169 | layout::print () const |
| 128 | { |
170 | { |
| 129 | for (int y = 0; y < h; y++) |
171 | for (int y = 0; y < h; y++) |
| 130 | { |
172 | { |
| 131 | for (int x = 0; x < w; x++) |
173 | for (int x = 0; x < w; x++) |
| 132 | { |
174 | { |
| 133 | U8 c = (U8)col [x][y]; |
175 | U8 c = (U8)data [x][y]; |
| 134 | |
176 | |
| 135 | if (!c) |
177 | if (!c) |
| 136 | c = ' '; |
178 | c = ' '; |
| 137 | else if (c < 10) |
179 | else if (c < 10) |
| 138 | c += '0'; |
180 | c += '0'; |
| … | |
… | |
| 151 | ///////////////////////////////////////////////////////////////////////////// |
193 | ///////////////////////////////////////////////////////////////////////////// |
| 152 | // isolation remover - ensures single connected area |
194 | // isolation remover - ensures single connected area |
| 153 | |
195 | |
| 154 | typedef fixed_stack<point> pointlist; |
196 | typedef fixed_stack<point> pointlist; |
| 155 | |
197 | |
| 156 | static noinline void |
198 | static void noinline |
| 157 | push_flood_fill (Layout &dist, pointlist &seeds, int x, int y) |
199 | push_flood_fill (layout &dist, pointlist &seeds, int x, int y) |
| 158 | { |
200 | { |
| 159 | if (dist [x][y]) |
201 | if (dist [x][y]) |
| 160 | return; |
202 | return; |
| 161 | |
203 | |
| 162 | while (y > 0 && !dist [x][y - 1]) |
204 | while (y > 0 && !dist [x][y - 1]) |
| … | |
… | |
| 172 | ++y; |
214 | ++y; |
| 173 | } |
215 | } |
| 174 | |
216 | |
| 175 | while (--y >= y0) |
217 | while (--y >= y0) |
| 176 | { |
218 | { |
| 177 | if (x > 0) push_flood_fill (dist, seeds, x - 1, y); |
219 | 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); |
220 | if (x < dist.w - 1 && !dist [x + 1][y]) push_flood_fill (dist, seeds, x + 1, y); |
| 179 | } |
221 | } |
| 180 | } |
222 | } |
| 181 | |
223 | |
| 182 | static inline void |
224 | static inline void |
| 183 | make_tunnel (Layout &dist, pointlist &seeds, int x, int y, U8 d) |
225 | make_tunnel (layout &dist, pointlist &seeds, int x, int y, U8 d) |
| 184 | { |
226 | { |
| 185 | for (;;) |
227 | for (;;) |
| 186 | { |
228 | { |
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229 | point neigh[4]; |
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230 | int ncnt = 0; |
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231 | |
| 187 | if (x > 1 && U8 (dist [x - 1][y]) < d && dist [x - 1][y] > 1) |
232 | if (x > 0 && U8 (dist [x - 1][y]) <= d && dist [x - 1][y] > 1) neigh [ncnt++] = point (x - 1, y); |
| 188 | --x; |
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| 189 | else if (x < dist.w - 2 && U8 (dist [x + 1][y]) < d && dist [x + 1][y] > 1) |
233 | if (x < dist.w - 1 && 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) |
234 | if (y > 0 && 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) |
235 | if (y < dist.h - 1 && U8 (dist [x][y + 1]) <= d && dist [x][y + 1] > 1) neigh [ncnt++] = point (x, y + 1); |
| 194 | ++y; |
236 | |
| 195 | else |
237 | if (!ncnt) |
| 196 | break; |
238 | return; |
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239 | |
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240 | point &p = neigh [rmg_rndm (ncnt)]; |
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241 | |
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242 | seeds.push (p); |
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243 | |
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244 | x = p.x; |
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245 | y = p.y; |
| 197 | |
246 | |
| 198 | d = dist [x][y]; |
247 | d = dist [x][y]; |
| 199 | dist [x][y] = 1; |
248 | dist [x][y] = 1; |
| 200 | seeds.push (point (x, y)); |
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| 201 | } |
249 | } |
| 202 | } |
250 | } |
| 203 | |
251 | |
| 204 | static void inline |
252 | static void inline |
| 205 | maybe_push (Layout &dist, pointlist &seeds, int x, int y, U8 d) |
253 | maybe_push (layout &dist, pointlist &seeds, int x, int y, U8 d) |
| 206 | { |
254 | { |
| 207 | char &D = dist [x][y]; |
255 | char &D = dist [x][y]; |
| 208 | |
256 | |
| 209 | if (U8 (D) > d) // if wall and higher distance, lower distance |
257 | if (U8 (D) > d) // if wall and higher distance, lower distance |
| 210 | D = d; |
258 | D = d; |
| … | |
… | |
| 212 | return; |
260 | return; |
| 213 | |
261 | |
| 214 | seeds.push (point (x, y)); |
262 | seeds.push (point (x, y)); |
| 215 | } |
263 | } |
| 216 | |
264 | |
| 217 | static void |
265 | // isolation remover, works on a "distance" map |
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266 | // the map must be initialised with 0 == rooms, 255 = walls |
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267 | static void noinline |
| 218 | isolation_remover (Layout &maze, bool dirty) |
268 | isolation_remover (layout &dist) |
| 219 | { |
269 | { |
| 220 | Layout dist (maze.w, maze.h); |
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| 221 | |
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| 222 | // dist contains |
270 | // dist contains |
| 223 | // 0 == invisited rooms |
271 | // 0 == invisited rooms |
| 224 | // 1 == visited rooms |
272 | // 1 == visited rooms |
| 225 | // 2+ shortest distance to random near room |
273 | // 2+ shortest distance to random near room |
| 226 | |
274 | |
| 227 | // phase 1, initialise dist array, find seed |
275 | // phase 1, find seed |
| 228 | int cnt = 0; |
276 | int cnt = 0; |
| 229 | int x, y; |
277 | int x, y; |
| 230 | |
278 | |
| 231 | for (int i = 0; i < maze.w; ++i) |
279 | for (int i = 0; i < dist.w; ++i) |
| 232 | for (int j = 0; j < maze.h; ++j) |
280 | for (int j = 0; j < dist.h; ++j) |
| 233 | { |
281 | if (!dist [i][j] && !rmg_rndm (++cnt)) |
| 234 | if (maze [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; |
282 | x = i, y = j; |
| 241 | } |
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| 242 | } |
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| 243 | |
283 | |
| 244 | if (!cnt) |
284 | if (!cnt) |
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285 | { |
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286 | // map is completely massive, this is not good, |
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287 | // so make it empty instead. |
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288 | dist.fill (1); |
| 245 | return; |
289 | return; |
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290 | } |
| 246 | |
291 | |
| 247 | fixed_stack<point> seeds (maze.w * maze.h * 5); |
292 | fixed_stack<point> seeds (dist.w * dist.h * 5); |
| 248 | |
293 | |
| 249 | // found first free space - picking the first one gives |
294 | // found first free space - picking the first one gives |
| 250 | // us a slight bias for tunnels, but usually you won't |
295 | // us a slight bias for tunnels, but usually you won't |
| 251 | // notice that in-game |
296 | // notice that in-game |
| 252 | seeds.push (point (x, y)); |
297 | seeds.push (point (x, y)); |
| … | |
… | |
| 264 | y = p.y; |
309 | y = p.y; |
| 265 | |
310 | |
| 266 | if (!dist [x][y]) |
311 | if (!dist [x][y]) |
| 267 | { |
312 | { |
| 268 | // found new isolated area, make tunnel |
313 | // found new isolated area, make tunnel |
| 269 | if (!dirty) |
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| 270 | push_flood_fill (dist, seeds, x, y); |
314 | push_flood_fill (dist, seeds, x, y); |
| 271 | |
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| 272 | make_tunnel (dist, seeds, x, y, 255); |
315 | make_tunnel (dist, seeds, x, y, 255); |
| 273 | |
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| 274 | if (dirty) |
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| 275 | push_flood_fill (dist, seeds, x, y); |
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| 276 | } |
316 | } |
| 277 | else |
317 | else |
| 278 | { |
318 | { |
| 279 | // nothing here, continue to expand |
319 | // nothing here, continue to expand |
| 280 | U8 d = U8 (dist [x][y]) + 1; |
320 | U8 d = U8 (dist [x][y]) + 1; |
| … | |
… | |
| 283 | if (x > 0) maybe_push (dist, seeds, x - 1, y, d); |
323 | if (x > 0) maybe_push (dist, seeds, x - 1, y, d); |
| 284 | if (y < dist.h - 1) maybe_push (dist, seeds, x, y + 1, d); |
324 | if (y < dist.h - 1) maybe_push (dist, seeds, x, y + 1, d); |
| 285 | if (y > 0) maybe_push (dist, seeds, x, y - 1, d); |
325 | if (y > 0) maybe_push (dist, seeds, x, y - 1, d); |
| 286 | } |
326 | } |
| 287 | } |
327 | } |
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328 | } |
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329 | |
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330 | void |
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331 | layout::isolation_remover () |
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332 | { |
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333 | layout dist (w - 2, h - 2); // map without border |
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334 | |
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335 | for (int x = 1; x < w - 1; ++x) |
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336 | for (int y = 1; y < h - 1; ++y) |
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337 | dist [x - 1][y - 1] = data [x][y] == '#' ? U8 (255) : 0; |
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338 | |
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339 | ::isolation_remover (dist); |
| 288 | |
340 | |
| 289 | // now copy the tunnels over |
341 | // now copy the tunnels over |
| 290 | for (int x = 0; x < maze.w; ++x) |
342 | for (int x = 1; x < w - 1; ++x) |
| 291 | for (int y = 0; y < maze.h; ++y) |
343 | for (int y = 1; y < h - 1; ++y) |
| 292 | if (maze [x][y] == '#' && dist [x][y] == 1) |
344 | if (data [x][y] == '#' && dist [x - 1][y - 1] == 1) |
| 293 | maze [x][y] = 0; |
345 | data [x][y] = 0; |
| 294 | } |
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| 295 | |
|
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| 296 | void |
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| 297 | Layout::isolation_remover (bool dirty) |
|
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| 298 | { |
|
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| 299 | ::isolation_remover (*this, dirty); |
|
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| 300 | } |
346 | } |
| 301 | |
347 | |
| 302 | ///////////////////////////////////////////////////////////////////////////// |
348 | ///////////////////////////////////////////////////////////////////////////// |
| 303 | |
349 | |
| 304 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
350 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
| 305 | void |
351 | void |
| 306 | Layout::gen_cave (int subtype) |
352 | layout::gen_cave (int subtype) |
| 307 | { |
353 | { |
| 308 | switch (subtype) |
354 | switch (subtype) |
| 309 | { |
355 | { |
| 310 | // a rough cave |
356 | // a rough cave |
| 311 | case 0: |
357 | case 0: |
| 312 | fill_rand (rmg_rndm (80, 95)); |
358 | fill_rand (rmg_rndm (85, 97)); |
| 313 | break; |
359 | break; |
| 314 | |
360 | |
| 315 | // corridors |
361 | // corridors |
| 316 | case 1: |
362 | case 1: |
| 317 | fill_rand (rmg_rndm (5, 40)); |
363 | fill_rand (rmg_rndm (5, 40)); |
| … | |
… | |
| 341 | |
387 | |
| 342 | ///////////////////////////////////////////////////////////////////////////// |
388 | ///////////////////////////////////////////////////////////////////////////// |
| 343 | |
389 | |
| 344 | //+GPL |
390 | //+GPL |
| 345 | |
391 | |
| 346 | /* puts doors at appropriate locations in a layout. */ |
392 | /* puts doors at appropriate locations in a maze. */ |
| 347 | void |
393 | void |
| 348 | Layout::doorify () |
394 | layout::doorify () |
| 349 | { |
395 | { |
| 350 | int ndoors = w * h / 60; /* reasonable number of doors. */ |
396 | int ndoors = w * h / 60; /* reasonable number of doors. */ |
| 351 | int doorlocs = 0; /* # of available doorlocations */ |
397 | int doorlocs = 0; /* # of available doorlocations */ |
| 352 | |
398 | |
| 353 | uint16 *doorlist_x = salloc<uint16> (w * h); |
399 | uint16 *doorlist_x = salloc<uint16> (w * h); |
| … | |
… | |
| 374 | int j = doorlist_y [di]; |
420 | int j = doorlist_y [di]; |
| 375 | int sindex = surround_flag (*this, i, j); |
421 | int sindex = surround_flag (*this, i, j); |
| 376 | |
422 | |
| 377 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
423 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
| 378 | { |
424 | { |
| 379 | col [i][j] = 'D'; |
425 | data [i][j] = 'D'; |
| 380 | ndoors--; |
426 | ndoors--; |
| 381 | } |
427 | } |
| 382 | |
428 | |
| 383 | /* reduce the size of the list */ |
429 | /* reduce the size of the list */ |
| 384 | doorlocs--; |
430 | doorlocs--; |
| … | |
… | |
| 392 | |
438 | |
| 393 | /* takes a map and makes it symmetric: adjusts Xsize and |
439 | /* takes a map and makes it symmetric: adjusts Xsize and |
| 394 | * Ysize to produce a symmetric map. |
440 | * Ysize to produce a symmetric map. |
| 395 | */ |
441 | */ |
| 396 | void |
442 | void |
| 397 | Layout::symmetrize (int symmetry) |
443 | layout::symmetrize (int symmetry) |
| 398 | { |
444 | { |
| 399 | if (symmetry == SYMMETRY_NONE) |
445 | if (symmetry == SYMMETRY_NONE) |
| 400 | return; |
446 | return; |
| 401 | |
447 | |
| 402 | Layout sym_layout ( |
448 | layout sym_layout ( |
| 403 | symmetry == SYMMETRY_X || symmetry == SYMMETRY_XY ? w * 2 - 3 : w, |
449 | symmetry == SYMMETRY_X || symmetry == SYMMETRY_XY ? w * 2 - 3 : w, |
| 404 | symmetry == SYMMETRY_Y || symmetry == SYMMETRY_XY ? h * 2 - 3 : h |
450 | symmetry == SYMMETRY_Y || symmetry == SYMMETRY_XY ? h * 2 - 3 : h |
| 405 | ); |
451 | ); |
| 406 | |
452 | |
| 407 | if (symmetry == SYMMETRY_X) |
453 | if (symmetry == SYMMETRY_X) |
| 408 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
454 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
| 409 | for (int j = 0; j < sym_layout.h; j++) |
455 | for (int j = 0; j < sym_layout.h; j++) |
| 410 | { |
456 | { |
| 411 | sym_layout[i ][j] = |
457 | sym_layout[i ][j] = |
| 412 | sym_layout[sym_layout.w - i - 1][j] = col[i][j]; |
458 | sym_layout[sym_layout.w - i - 1][j] = data [i][j]; |
| 413 | } |
459 | } |
| 414 | |
460 | |
| 415 | if (symmetry == SYMMETRY_Y) |
461 | if (symmetry == SYMMETRY_Y) |
| 416 | for (int i = 0; i < sym_layout.w; i++) |
462 | for (int i = 0; i < sym_layout.w; i++) |
| 417 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
463 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
| 418 | { |
464 | { |
| 419 | sym_layout[i][j ] = |
465 | sym_layout[i][j ] = |
| 420 | sym_layout[i][sym_layout.h - j - 1] = col[i][j]; |
466 | sym_layout[i][sym_layout.h - j - 1] = data [i][j]; |
| 421 | } |
467 | } |
| 422 | |
468 | |
| 423 | if (symmetry == SYMMETRY_XY) |
469 | if (symmetry == SYMMETRY_XY) |
| 424 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
470 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
| 425 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
471 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
| 426 | { |
472 | { |
| 427 | sym_layout[i ][j ] = |
473 | sym_layout[i ][j ] = |
| 428 | sym_layout[i ][sym_layout.h - j - 1] = |
474 | sym_layout[i ][sym_layout.h - j - 1] = |
| 429 | sym_layout[sym_layout.w - i - 1][j ] = |
475 | sym_layout[sym_layout.w - i - 1][j ] = |
| 430 | sym_layout[sym_layout.w - i - 1][sym_layout.h - j - 1] = col[i][j]; |
476 | sym_layout[sym_layout.w - i - 1][sym_layout.h - j - 1] = data [i][j]; |
| 431 | } |
477 | } |
| 432 | |
478 | |
| 433 | /* need to run the isolation remover for some layouts */ |
479 | /* need to run the isolation remover for some layouts */ |
| 434 | #if 0 |
480 | #if 0 |
| 435 | switch (RP->map_layout_style) |
481 | switch (RP->map_layout_style) |
| … | |
… | |
| 451 | } |
497 | } |
| 452 | |
498 | |
| 453 | //-GPL |
499 | //-GPL |
| 454 | |
500 | |
| 455 | void |
501 | void |
| 456 | Layout::rotate (int rotation) |
502 | layout::rotate (int rotation) |
| 457 | { |
503 | { |
| 458 | switch (rotation & 3) |
504 | switch (rotation & 3) |
| 459 | { |
505 | { |
| 460 | case 2: /* a reflection */ |
506 | case 2: /* a reflection */ |
| 461 | { |
507 | { |
| 462 | Layout new_layout (w, h); |
508 | layout new_layout (w, h); |
| 463 | |
509 | |
| 464 | for (int i = 0; i < w; i++) /* copy a reflection back */ |
510 | for (int i = 0; i < w; i++) /* copy a reflection back */ |
| 465 | for (int j = 0; j < h; j++) |
511 | for (int j = 0; j < h; j++) |
| 466 | new_layout [i][j] = col [w - i - 1][h - j - 1]; |
512 | new_layout [i][j] = data [w - i - 1][h - j - 1]; |
| 467 | |
513 | |
| 468 | swap (new_layout); |
514 | swap (new_layout); |
| 469 | } |
515 | } |
| 470 | break; |
516 | break; |
| 471 | |
517 | |
| 472 | case 1: |
518 | case 1: |
| 473 | case 3: |
519 | case 3: |
| 474 | { |
520 | { |
| 475 | Layout new_layout (h, w); |
521 | layout new_layout (h, w); |
| 476 | |
522 | |
| 477 | if (rotation == 1) /* swap x and y */ |
523 | if (rotation == 1) /* swap x and y */ |
| 478 | for (int i = 0; i < w; i++) |
524 | for (int i = 0; i < w; i++) |
| 479 | for (int j = 0; j < h; j++) |
525 | for (int j = 0; j < h; j++) |
| 480 | new_layout [j][i] = col [i][j]; |
526 | new_layout [j][i] = data [i][j]; |
| 481 | |
527 | |
| 482 | if (rotation == 3) /* swap x and y */ |
528 | if (rotation == 3) /* swap x and y */ |
| 483 | for (int i = 0; i < w; i++) |
529 | for (int i = 0; i < w; i++) |
| 484 | for (int j = 0; j < h; j++) |
530 | for (int j = 0; j < h; j++) |
| 485 | new_layout [j][i] = col [w - i - 1][h - j - 1]; |
531 | new_layout [j][i] = data [w - i - 1][h - j - 1]; |
| 486 | |
532 | |
| 487 | swap (new_layout); |
533 | swap (new_layout); |
| 488 | } |
534 | } |
| 489 | break; |
535 | break; |
| 490 | } |
536 | } |
| … | |
… | |
| 493 | ///////////////////////////////////////////////////////////////////////////// |
539 | ///////////////////////////////////////////////////////////////////////////// |
| 494 | |
540 | |
| 495 | //+GPL |
541 | //+GPL |
| 496 | |
542 | |
| 497 | /* |
543 | /* |
| 498 | * Expands a layout by 2x in each dimension. |
544 | * Expands a maze by 2x in each dimension. |
| 499 | * H. S. Teoh |
545 | * H. S. Teoh |
| 500 | */ |
546 | */ |
| 501 | |
547 | |
| 502 | /* Copy the old tile X into the new one at location (i*2, j*2) and |
548 | /* 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: |
549 | * fill up the rest of the 2x2 result with \0: |
| 504 | * X ---> X \0 |
550 | * X ---> X \0 |
| 505 | * \0 \0 |
551 | * \0 \0 |
| 506 | */ |
552 | */ |
| 507 | static void inline |
553 | static void inline |
| 508 | expand_misc (Layout &newlayout, int i, int j, Layout &layout) |
554 | expand_misc (layout &newlayout, int i, int j, layout &maze) |
| 509 | { |
555 | { |
| 510 | newlayout[i * 2 + rmg_rndm (1)][j * 2 + rmg_rndm (1)] = layout[i][j]; |
556 | 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 |
557 | /* (Note: no need to reset rest of 2x2 area to \0 because calloc does that |
| 512 | * for us.) */ |
558 | * for us.) */ |
| 513 | } |
559 | } |
| 514 | |
560 | |
| 515 | /* Returns a bitmap that represents which squares on the right and bottom |
561 | /* Returns a bitmap that represents which squares on the right and bottom |
| … | |
… | |
| 518 | * 2 match on (i, j+1) |
564 | * 2 match on (i, j+1) |
| 519 | * 4 match on (i+1, j+1) |
565 | * 4 match on (i+1, j+1) |
| 520 | * and the possible combinations thereof. |
566 | * and the possible combinations thereof. |
| 521 | */ |
567 | */ |
| 522 | static int noinline |
568 | static int noinline |
| 523 | calc_pattern (char ch, Layout &layout, int i, int j) |
569 | calc_pattern (char ch, layout &maze, int i, int j) |
| 524 | { |
570 | { |
| 525 | int pattern = 0; |
571 | int pattern = 0; |
| 526 | |
572 | |
| 527 | if (i + 1 < layout.w && layout[i + 1][j] == ch) |
573 | if (i + 1 < maze.w && maze[i + 1][j] == ch) |
| 528 | pattern |= 1; |
574 | pattern |= 1; |
| 529 | |
575 | |
| 530 | if (j + 1 < layout.h) |
576 | if (j + 1 < maze.h) |
| 531 | { |
577 | { |
| 532 | if (layout[i][j + 1] == ch) |
578 | if (maze[i][j + 1] == ch) |
| 533 | pattern |= 2; |
579 | pattern |= 2; |
| 534 | |
580 | |
| 535 | if (i + 1 < layout.w && layout[i + 1][j + 1] == ch) |
581 | if (i + 1 < maze.w && maze[i + 1][j + 1] == ch) |
| 536 | pattern |= 4; |
582 | pattern |= 4; |
| 537 | } |
583 | } |
| 538 | |
584 | |
| 539 | return pattern; |
585 | return pattern; |
| 540 | } |
586 | } |
| … | |
… | |
| 542 | /* Expand a wall. This function will try to sensibly connect the resulting |
588 | /* 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 |
589 | * wall to adjacent wall squares, so that the result won't have disconnected |
| 544 | * walls. |
590 | * walls. |
| 545 | */ |
591 | */ |
| 546 | static void inline |
592 | static void inline |
| 547 | expand_wall (Layout &newlayout, int i, int j, Layout &layout) |
593 | expand_wall (layout &newlayout, int i, int j, layout &maze) |
| 548 | { |
594 | { |
| 549 | int wall_pattern = calc_pattern ('#', layout, i, j); |
595 | int wall_pattern = calc_pattern ('#', maze, i, j); |
| 550 | int door_pattern = calc_pattern ('D', layout, i, j); |
596 | int door_pattern = calc_pattern ('D', maze, i, j); |
| 551 | int both_pattern = wall_pattern | door_pattern; |
597 | int both_pattern = wall_pattern | door_pattern; |
| 552 | |
598 | |
| 553 | newlayout[i * 2][j * 2] = '#'; |
599 | newlayout[i * 2][j * 2] = '#'; |
| 554 | |
600 | |
| 555 | if (i + 1 < layout.w) |
601 | if (i + 1 < maze.w) |
| 556 | { |
602 | { |
| 557 | if (both_pattern & 1) |
603 | if (both_pattern & 1) |
| 558 | { /* join walls/doors to the right */ |
604 | { /* join walls/doors to the right */ |
| 559 | /* newlayout[i*2+1][j*2] = '#'; */ |
605 | /* newlayout[i*2+1][j*2] = '#'; */ |
| 560 | newlayout[i * 2 + 1][j * 2] = layout[i + 1][j]; |
606 | newlayout[i * 2 + 1][j * 2] = maze[i + 1][j]; |
| 561 | } |
607 | } |
| 562 | } |
608 | } |
| 563 | |
609 | |
| 564 | if (j + 1 < layout.h) |
610 | if (j + 1 < maze.h) |
| 565 | { |
611 | { |
| 566 | if (both_pattern & 2) |
612 | if (both_pattern & 2) |
| 567 | { /* join walls/doors to the bottom */ |
613 | { /* join walls/doors to the bottom */ |
| 568 | /* newlayout[i*2][j*2+1] = '#'; */ |
614 | /* newlayout[i*2][j*2+1] = '#'; */ |
| 569 | newlayout[i * 2][j * 2 + 1] = layout[i][j + 1]; |
615 | newlayout[i * 2][j * 2 + 1] = maze[i][j + 1]; |
| 570 | } |
616 | } |
| 571 | |
617 | |
| 572 | if (wall_pattern == 7) |
618 | if (wall_pattern == 7) |
| 573 | { /* if orig layout is a 2x2 wall block, |
619 | { /* if orig maze is a 2x2 wall block, |
| 574 | * we fill the result with walls. */ |
620 | * we fill the result with walls. */ |
| 575 | newlayout[i * 2 + 1][j * 2 + 1] = '#'; |
621 | newlayout[i * 2 + 1][j * 2 + 1] = '#'; |
| 576 | } |
622 | } |
| 577 | } |
623 | } |
| 578 | } |
624 | } |
| … | |
… | |
| 580 | /* This function will try to sensibly connect doors so that they meet up with |
626 | /* 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 |
627 | * adjacent walls. Note that it will also presumptuously delete (ignore) doors |
| 582 | * that it doesn't know how to correctly expand. |
628 | * that it doesn't know how to correctly expand. |
| 583 | */ |
629 | */ |
| 584 | static void inline |
630 | static void inline |
| 585 | expand_door (Layout &newlayout, int i, int j, Layout &layout) |
631 | expand_door (layout &newlayout, int i, int j, layout &maze) |
| 586 | { |
632 | { |
| 587 | int wall_pattern = calc_pattern ('#', layout, i, j); |
633 | int wall_pattern = calc_pattern ('#', maze, i, j); |
| 588 | int door_pattern = calc_pattern ('D', layout, i, j); |
634 | int door_pattern = calc_pattern ('D', maze, i, j); |
| 589 | int join_pattern; |
635 | int join_pattern; |
| 590 | |
636 | |
| 591 | /* Doors "like" to connect to walls more than other doors. If there is |
637 | /* 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 |
638 | * a wall and another door, this door will connect to the wall and |
| 593 | * disconnect from the other door. */ |
639 | * disconnect from the other door. */ |
| … | |
… | |
| 596 | else |
642 | else |
| 597 | join_pattern = door_pattern; |
643 | join_pattern = door_pattern; |
| 598 | |
644 | |
| 599 | newlayout[i * 2][j * 2] = 'D'; |
645 | newlayout[i * 2][j * 2] = 'D'; |
| 600 | |
646 | |
| 601 | if (i + 1 < layout.w) |
647 | if (i + 1 < maze.w) |
| 602 | if (join_pattern & 1) |
648 | if (join_pattern & 1) |
| 603 | /* there is a door/wall to the right */ |
649 | /* there is a door/wall to the right */ |
| 604 | newlayout[i * 2 + 1][j * 2] = 'D'; |
650 | newlayout[i * 2 + 1][j * 2] = 'D'; |
| 605 | |
651 | |
| 606 | if (j + 1 < layout.h) |
652 | if (j + 1 < maze.h) |
| 607 | if (join_pattern & 2) |
653 | if (join_pattern & 2) |
| 608 | /* there is a door/wall below */ |
654 | /* there is a door/wall below */ |
| 609 | newlayout[i * 2][j * 2 + 1] = 'D'; |
655 | newlayout[i * 2][j * 2 + 1] = 'D'; |
| 610 | } |
656 | } |
| 611 | |
657 | |
| 612 | void |
658 | void |
| 613 | Layout::expand2x () |
659 | layout::expand2x () |
| 614 | { |
660 | { |
| 615 | Layout new_layout (w * 2 - 1, h * 2 - 1); |
661 | layout new_layout (w * 2 - 1, h * 2 - 1); |
| 616 | |
662 | |
| 617 | new_layout.clear (); |
663 | new_layout.clear (); |
| 618 | |
664 | |
| 619 | for (int i = 0; i < w; i++) |
665 | for (int i = 0; i < w; i++) |
| 620 | for (int j = 0; j < h; j++) |
666 | for (int j = 0; j < h; j++) |
| 621 | switch (col [i][j]) |
667 | switch (data [i][j]) |
| 622 | { |
668 | { |
| 623 | case '#': expand_wall (new_layout, i, j, *this); break; |
669 | case '#': expand_wall (new_layout, i, j, *this); break; |
| 624 | case 'D': expand_door (new_layout, i, j, *this); break; |
670 | case 'D': expand_door (new_layout, i, j, *this); break; |
| 625 | default: expand_misc (new_layout, i, j, *this); break; |
671 | default: expand_misc (new_layout, i, j, *this); break; |
| 626 | } |
672 | } |
| … | |
… | |
| 628 | swap (new_layout); |
674 | swap (new_layout); |
| 629 | } |
675 | } |
| 630 | |
676 | |
| 631 | ///////////////////////////////////////////////////////////////////////////// |
677 | ///////////////////////////////////////////////////////////////////////////// |
| 632 | |
678 | |
| 633 | /* checks the layout to see if I can stick a horizontal(dir = 0) wall |
679 | /* checks the maze to see if I can stick a horizontal(dir = 0) wall |
| 634 | (or vertical, dir == 1) |
680 | (or vertical, dir == 1) |
| 635 | here which ends up on other walls sensibly. */ |
681 | here which ends up on other walls sensibly. */ |
| 636 | static int |
682 | static int |
| 637 | can_make_wall (const Layout &maze, int dx, int dy, int dir) |
683 | can_make_wall (const layout &maze, int dx, int dy, int dir) |
| 638 | { |
684 | { |
| 639 | int i1; |
685 | int i1; |
| 640 | int length = 0; |
686 | int length = 0; |
| 641 | |
687 | |
| 642 | /* dont make walls if we're on the edge. */ |
688 | /* dont make walls if we're on the edge. */ |
| … | |
… | |
| 729 | |
775 | |
| 730 | return 0; |
776 | return 0; |
| 731 | } |
777 | } |
| 732 | |
778 | |
| 733 | void |
779 | void |
| 734 | Layout::roomify () |
780 | layout::roomify () |
| 735 | { |
781 | { |
| 736 | int tries = w * h / 30; |
782 | int tries = w * h / 30; |
| 737 | |
783 | |
| 738 | for (int ti = 0; ti < tries; ti++) |
784 | for (int ti = 0; ti < tries; ti++) |
| 739 | { |
785 | { |
| … | |
… | |
| 766 | } |
812 | } |
| 767 | } |
813 | } |
| 768 | |
814 | |
| 769 | ///////////////////////////////////////////////////////////////////////////// |
815 | ///////////////////////////////////////////////////////////////////////////// |
| 770 | |
816 | |
| 771 | /* function selects the layout function and gives it whatever |
817 | /* function selects the maze function and gives it whatever |
| 772 | arguments it needs. */ |
818 | arguments it needs. */ |
| 773 | void |
819 | void |
| 774 | Layout::generate (random_map_params *RP) |
820 | layout::generate (random_map_params *RP) |
| 775 | { |
821 | { |
| 776 | switch (RP->map_layout_style) |
822 | switch (RP->map_layout_style) |
| 777 | { |
823 | { |
| 778 | case LAYOUT_ONION: |
824 | case LAYOUT_ONION: |
| 779 | map_gen_onion (*this, RP->layoutoptions1, RP->layoutoptions2); |
825 | map_gen_onion (*this, RP->layoutoptions1, RP->layoutoptions2); |
| … | |
… | |
| 838 | |
884 | |
| 839 | default: |
885 | default: |
| 840 | abort (); |
886 | abort (); |
| 841 | } |
887 | } |
| 842 | |
888 | |
| 843 | /* rotate the layout randomly */ |
889 | /* rotate the maze randomly */ |
| 844 | rotate (rmg_rndm (4)); |
890 | rotate (rmg_rndm (4)); |
| 845 | |
891 | |
| 846 | symmetrize (RP->symmetry_used); |
892 | symmetrize (RP->symmetry_used); |
| 847 | |
893 | |
| 848 | #if 0 |
894 | #if 0 |
| … | |
… | |
| 858 | #if 0 |
904 | #if 0 |
| 859 | static struct demo |
905 | static struct demo |
| 860 | { |
906 | { |
| 861 | demo () |
907 | demo () |
| 862 | { |
908 | { |
| 863 | Layout maze (40, 25); |
|
|
| 864 | rmg_rndm.seed (time (0)); |
909 | rmg_rndm.seed (time (0)); |
| 865 | |
910 | |
| 866 | for(int i=1;i<10;i) |
911 | for(int i=1;i<100;i++) |
| 867 | { |
912 | { |
|
|
913 | layout maze (40, 25); |
| 868 | maze.fill_rand (97); |
914 | maze.fill_rand (85); |
| 869 | maze.border (); |
915 | maze.border (); |
| 870 | maze.isolation_remover (); |
916 | maze.isolation_remover (); |
| 871 | maze.print (); |
917 | maze.print (); |
| 872 | } |
918 | } |
| 873 | |
919 | |
