| 1 | /* |
1 | /* |
| 2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
| 3 | * |
3 | * |
| 4 | * Copyright (©) 2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
4 | * Copyright (©) 2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
|
|
5 | * Copyright (©) Crossfire Development Team (restored, original file without copyright notice) |
| 5 | * |
6 | * |
| 6 | * Deliantra is free software: you can redistribute it and/or modify it under |
7 | * Deliantra is free software: you can redistribute it and/or modify it under |
| 7 | * the terms of the Affero GNU General Public License as published by the |
8 | * the terms of the Affero GNU General Public License as published by the |
| 8 | * Free Software Foundation, either version 3 of the License, or (at your |
9 | * Free Software Foundation, either version 3 of the License, or (at your |
| 9 | * option) any later version. |
10 | * option) any later version. |
| … | |
… | |
| 20 | * The authors can be reached via e-mail to <support@deliantra.net> |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
| 21 | */ |
22 | */ |
| 22 | |
23 | |
| 23 | #include <global.h> |
24 | #include <global.h> |
| 24 | #include <random_map.h> |
25 | #include <random_map.h> |
|
|
26 | #include <rproto.h> |
| 25 | |
27 | |
| 26 | LayoutData::LayoutData (int w, int h) |
28 | void |
| 27 | : w(w), h(h) |
29 | layout::alloc (int w, int h) |
| 28 | { |
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 |
|
|
37 | // first part consists of pointers to each column, followed |
|
|
38 | // by the actual columns (not rows!) |
| 29 | int size = (sizeof (char *) + sizeof (char) * h) * w; |
39 | int size = (sizeof (cell *) + sizeof (cell) * h) * w; |
| 30 | |
40 | |
| 31 | col = (char **)salloc<char> (size); |
41 | data = (cell **)salloc<char> (size); |
| 32 | |
42 | |
| 33 | char *data = (char *)(col + w); |
43 | cell *p = (cell *)(data + w); |
| 34 | |
44 | |
| 35 | for (int x = w; x--; ) |
45 | for (int x = w; x--; ) |
| 36 | col [x] = data + x * h; |
46 | data [x] = p + x * h; |
| 37 | } |
47 | } |
| 38 | |
48 | |
| 39 | LayoutData::~LayoutData () |
49 | layout::layout (int w, int h) |
| 40 | { |
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 | |
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61 | layout::~layout () |
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62 | { |
| 41 | int size = (sizeof (char *) + sizeof (char) * h) * w; |
63 | int size = (sizeof (cell *) + sizeof (cell) * h) * w; |
| 42 | |
64 | |
| 43 | sfree ((char *)col, size); |
65 | sfree ((char *)data, size); |
| 44 | } |
66 | } |
| 45 | |
67 | |
| 46 | void |
68 | void |
| 47 | LayoutData::fill (char fill) |
69 | layout::fill (char fill) |
| 48 | { |
70 | { |
| 49 | memset (col [0], fill, w * h); |
71 | memset (data [0], fill, w * h); |
| 50 | } |
72 | } |
| 51 | |
73 | |
| 52 | void |
74 | void |
| 53 | LayoutData::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) |
| 54 | { |
88 | { |
| 55 | for (; x1 < x2; ++x1) |
89 | for (; x1 < x2; ++x1) |
| 56 | memset (col [x1] + y1, fill, y2 - y1); |
90 | memset (data [x1] + y1, fill, y2 - y1); |
| 57 | } |
91 | } |
| 58 | |
92 | |
| 59 | void LayoutData::border (char fill) |
93 | void layout::border (char fill) |
| 60 | { |
94 | { |
| 61 | for (int i = 0; i < w; i++) col [i][0] = col [i][h - 1] = fill; |
95 | rect (0, 0, w, h, fill); |
| 62 | for (int j = 0; j < h; j++) col [0][j] = col [w - 1][j] = fill; |
|
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| 63 | } |
96 | } |
| 64 | |
97 | |
| 65 | void |
98 | void |
| 66 | LayoutData::fill_rand (int percent) |
99 | layout::fill_rand (int percent) |
| 67 | { |
100 | { |
| 68 | percent = lerp (percent, 0, 100, 0, 256); |
101 | percent = lerp (percent, 0, 100, 0, 256); |
| 69 | |
102 | |
| 70 | for (int x = w - 1; --x > 0; ) |
103 | for (int x = w - 1; --x > 0; ) |
| 71 | for (int y = h - 1; --y > 0; ) |
104 | for (int y = h - 1; --y > 0; ) |
| 72 | col [x][y] = rmg_rndm (256) > percent ? 0 : '#'; |
105 | data [x][y] = rmg_rndm (256) > percent ? 0 : '#'; |
| 73 | } |
106 | } |
| 74 | |
107 | |
| 75 | ///////////////////////////////////////////////////////////////////////////// |
108 | ///////////////////////////////////////////////////////////////////////////// |
| 76 | |
109 | |
| 77 | // erode by cellular automata |
110 | // erode by cellular automata |
| 78 | void |
111 | void |
| 79 | LayoutData::erode_1_2 (int c1, int c2, int repeat) |
112 | layout::erode_1_2 (int c1, int c2, int repeat) |
| 80 | { |
113 | { |
| 81 | LayoutData neu (w, h); |
114 | layout neu (w, h); |
| 82 | |
115 | |
| 83 | while (repeat--) |
116 | while (repeat--) |
| 84 | { |
117 | { |
| 85 | for (int x = 0; x < w; ++x) |
118 | for (int x = 0; x < w; ++x) |
| 86 | { |
119 | { |
| … | |
… | |
| 90 | { |
123 | { |
| 91 | int n1 = 0, n2 = 0; |
124 | int n1 = 0, n2 = 0; |
| 92 | |
125 | |
| 93 | // a 5x5 area, dx, dy, distance (1 == <= 1, 0 <= 2) |
126 | // a 5x5 area, dx, dy, distance (1 == <= 1, 0 <= 2) |
| 94 | static I8 dds[][3] = { |
127 | static I8 dds[][3] = { |
| 95 | { -2, -1, 0 }, |
128 | { -2, -1, 0 }, { -2, 0, 0 }, { -2, 1, 0 }, |
| 96 | { -2, 0, 0 }, |
129 | { -1, -2, 0 }, { -1, -1, 1 }, { -1, 0, 1 }, { -1, 1, 1 }, { -1, 2, 0 }, |
| 97 | { -2, 1, 0 }, |
130 | { 0, -2, 0 }, { 0, -1, 1 }, { 0, 0, 1 }, { 0, 1, 1 }, { 0, 2, 0 }, |
| 98 | |
131 | { 1, -2, 0 }, { 1, -1, 1 }, { 1, 0, 1 }, { 1, 1, 1 }, { 1, 2, 0 }, |
| 99 | { -1, -2, 0 }, |
132 | { 2, -1, 0 }, { 2, 0, 0 }, { 2, 1, 0 }, |
| 100 | { -1, -1, 1 }, |
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| 101 | { -1, 0, 1 }, |
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| 102 | { -1, 1, 1 }, |
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| 103 | { -1, 2, 0 }, |
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| 104 | |
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| 105 | { 0, -2, 0 }, |
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| 106 | { 0, -1, 1 }, |
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| 107 | { 0, 0, 1 }, |
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| 108 | { 0, 1, 1 }, |
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| 109 | { 0, 2, 0 }, |
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| 110 | |
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| 111 | { 1, -2, 0 }, |
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| 112 | { 1, -1, 1 }, |
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| 113 | { 1, 0, 1 }, |
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| 114 | { 1, 1, 1 }, |
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| 115 | { 1, 2, 0 }, |
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| 116 | |
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| 117 | { 2, -1, 0 }, |
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| 118 | { 2, 0, 0 }, |
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| 119 | { 2, 1, 0 }, |
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| 120 | }; |
133 | }; |
| 121 | |
134 | |
| 122 | for (int i = array_length (dds); i--; ) |
135 | for (int i = array_length (dds); i--; ) |
| 123 | { |
136 | { |
| 124 | int nx = x + dds [i][0]; |
137 | int nx = x + dds [i][0]; |
| 125 | int ny = y + dds [i][1]; |
138 | int ny = y + dds [i][1]; |
| 126 | |
139 | |
| 127 | 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]) |
| 128 | { |
141 | { |
| 129 | n1 += dds [i][2]; |
142 | n1 += dds [i][2]; |
| 130 | n2++; |
143 | n2++; |
| 131 | } |
144 | } |
| 132 | } |
145 | } |
| … | |
… | |
| 140 | } |
153 | } |
| 141 | |
154 | |
| 142 | ///////////////////////////////////////////////////////////////////////////// |
155 | ///////////////////////////////////////////////////////////////////////////// |
| 143 | |
156 | |
| 144 | void |
157 | void |
| 145 | LayoutData::print () |
158 | layout::print () const |
| 146 | { |
159 | { |
| 147 | for (int y = 0; y < h; y++) |
160 | for (int y = 0; y < h; y++) |
| 148 | { |
161 | { |
| 149 | for (int x = 0; x < w; x++) |
162 | for (int x = 0; x < w; x++) |
| 150 | { |
163 | { |
| 151 | U8 c = (U8)col [x][y]; |
164 | U8 c = (U8)data [x][y]; |
| 152 | |
165 | |
| 153 | if (!c) |
166 | if (!c) |
| 154 | c = ' '; |
167 | c = ' '; |
| 155 | else if (c < 10) |
168 | else if (c < 10) |
| 156 | c += '0'; |
169 | c += '0'; |
| … | |
… | |
| 169 | ///////////////////////////////////////////////////////////////////////////// |
182 | ///////////////////////////////////////////////////////////////////////////// |
| 170 | // isolation remover - ensures single connected area |
183 | // isolation remover - ensures single connected area |
| 171 | |
184 | |
| 172 | typedef fixed_stack<point> pointlist; |
185 | typedef fixed_stack<point> pointlist; |
| 173 | |
186 | |
| 174 | static noinline void |
187 | static void noinline |
| 175 | push_flood_fill (LayoutData &maze, LayoutData &dist, pointlist &seeds, int x, int y) |
188 | push_flood_fill (layout &dist, pointlist &seeds, int x, int y) |
| 176 | { |
189 | { |
| 177 | if (maze [x][y]) |
190 | if (dist [x][y]) |
| 178 | return; |
191 | return; |
| 179 | |
192 | |
| 180 | while (y > 0 && !maze [x][y - 1]) |
193 | while (y > 0 && !dist [x][y - 1]) |
| 181 | --y; |
194 | --y; |
| 182 | |
195 | |
| 183 | int y0 = y; |
196 | int y0 = y; |
| 184 | |
197 | |
| 185 | while (y < maze.h && !maze [x][y]) |
198 | while (y < dist.h && !dist [x][y]) |
| 186 | { |
199 | { |
| 187 | seeds.push (point (x, y)); |
200 | seeds.push (point (x, y)); |
| 188 | |
201 | |
| 189 | maze [x][y] = 1; |
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|
| 190 | dist [x][y] = 1; |
202 | dist [x][y] = 1; |
| 191 | ++y; |
203 | ++y; |
| 192 | } |
204 | } |
| 193 | |
205 | |
| 194 | while (--y >= y0) |
206 | while (--y >= y0) |
| 195 | { |
207 | { |
| 196 | if (x > 0) push_flood_fill (maze, dist, seeds, x - 1, y); |
208 | if (x > 0 && !dist [x - 1][y]) push_flood_fill (dist, seeds, x - 1, y); |
| 197 | if (x < maze.w - 1) push_flood_fill (maze, dist, seeds, x + 1, y); |
209 | if (x < dist.w - 1 && !dist [x + 1][y]) push_flood_fill (dist, seeds, x + 1, y); |
| 198 | } |
210 | } |
| 199 | } |
211 | } |
| 200 | |
212 | |
| 201 | static inline void |
213 | static inline void |
| 202 | make_tunnel (LayoutData &maze, LayoutData &dist, pointlist &seeds, int x, int y, U8 d) |
214 | make_tunnel (layout &dist, pointlist &seeds, int x, int y, U8 d) |
| 203 | { |
215 | { |
| 204 | for (;;) |
216 | for (;;) |
| 205 | { |
217 | { |
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218 | point neigh[4]; |
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219 | int ncnt = 0; |
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220 | |
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221 | if (x > 1 && U8 (dist [x - 1][y]) <= d && dist [x - 1][y] > 1) neigh [ncnt++] = point (x - 1, y); |
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222 | if (x < dist.w - 2 && U8 (dist [x + 1][y]) <= d && dist [x + 1][y] > 1) neigh [ncnt++] = point (x + 1, y); |
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223 | if (y > 1 && U8 (dist [x][y - 1]) <= d && dist [x][y - 1] > 1) neigh [ncnt++] = point (x, y - 1); |
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224 | if (y < dist.h - 2 && U8 (dist [x][y + 1]) <= d && dist [x][y + 1] > 1) neigh [ncnt++] = point (x, y + 1); |
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225 | |
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226 | printf ("tunnel %d+%d ncnt %d\n", x, y, ncnt);//D |
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227 | |
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228 | if (!ncnt) |
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229 | return; |
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230 | |
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231 | point &p = neigh [rmg_rndm (ncnt)]; |
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232 | |
| 206 | seeds.push (point (x, y)); |
233 | seeds.push (p); |
| 207 | |
234 | |
| 208 | maze [x][y] = 1; |
235 | x = p.x; |
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236 | y = p.y; |
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237 | |
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238 | d = dist [x][y]; |
| 209 | dist [x][y] = 1; |
239 | dist [x][y] = 1; |
|
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240 | } |
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241 | } |
| 210 | |
242 | |
| 211 | if (x > 1 && U8 (dist [x - 1][y]) < d && dist [x - 1][y] > 1) |
243 | static void inline |
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244 | maybe_push (layout &dist, pointlist &seeds, int x, int y, U8 d) |
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245 | { |
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246 | char &D = dist [x][y]; |
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247 | |
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248 | if (U8 (D) > d) // if wall and higher distance, lower distance |
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249 | D = d; |
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250 | else if (D) // otherwise, if it's no room, this space is uninteresting |
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251 | return; |
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252 | |
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253 | seeds.push (point (x, y)); |
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254 | } |
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255 | |
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256 | // isolation remover, works on a "distance" map |
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257 | // the map must be initialised with 0 == rooms, 255 = walls |
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258 | static void noinline |
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259 | isolation_remover (layout &dist) |
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260 | { |
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261 | // dist contains |
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262 | // 0 == invisited rooms |
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263 | // 1 == visited rooms |
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264 | // 2+ shortest distance to random near room |
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265 | |
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266 | // phase 1, find seed |
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267 | int cnt = 0; |
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268 | int x, y; |
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269 | |
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270 | for (int i = 0; i < dist.w; ++i) |
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271 | for (int j = 0; j < dist.h; ++j) |
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272 | if (!dist [i][j] && !rmg_rndm (++cnt)) |
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273 | x = i, y = j; |
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274 | |
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275 | if (!cnt) |
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276 | { |
|
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277 | // map is completely massive, this is not good, |
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278 | // so make it empty instead. |
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279 | dist.fill (1); |
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280 | dist.border (255); |
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281 | return; |
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282 | } |
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283 | |
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284 | fixed_stack<point> seeds (dist.w * dist.h * 5); |
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285 | |
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286 | // found first free space - picking the first one gives |
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287 | // us a slight bias for tunnels, but usually you won't |
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288 | // notice that in-game |
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289 | seeds.push (point (x, y)); |
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290 | |
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291 | // phase 2, while we have seeds, if |
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292 | // seed is empty, floodfill, else grow |
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293 | |
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294 | while (seeds.size) |
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295 | { |
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296 | coroapi::cede_to_tick (); |
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297 | |
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298 | point p = seeds.remove (rmg_rndm (seeds.size)); |
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299 | |
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300 | x = p.x; |
|
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301 | y = p.y; |
|
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302 | |
|
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303 | if (!dist [x][y]) |
| 212 | --x; |
304 | { |
| 213 | else if (x < maze.w - 2 && U8 (dist [x + 1][y]) < d && dist [x + 1][y] > 1) |
305 | // found new isolated area, make tunnel |
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306 | push_flood_fill (dist, seeds, x, y); |
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307 | make_tunnel (dist, seeds, x, y, 255); |
| 214 | ++x; |
308 | } |
| 215 | else if (y > 1 && U8 (dist [x][y - 1]) < d && dist [x][y - 1] > 1) |
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| 216 | --y; |
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| 217 | else if (y < maze.h - 2 && U8 (dist [x][y + 1]) < d && dist [x][y + 1] > 1) |
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| 218 | ++y; |
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| 219 | else |
309 | else |
| 220 | break; |
|
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| 221 | |
|
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| 222 | d = dist [x][y]; |
|
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| 223 | } |
|
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| 224 | } |
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| 225 | |
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| 226 | static void |
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| 227 | isolation_remover (LayoutData &maze, bool dirty) |
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| 228 | { |
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| 229 | LayoutData dist (maze.w, maze.h); |
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| 230 | |
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| 231 | dist.fill (255); |
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| 232 | |
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| 233 | fixed_stack<point> seeds (maze.w * maze.h * 4); |
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| 234 | |
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| 235 | // phase 1, find seed |
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| 236 | for (int x = 1; x < maze.w; ++x) |
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| 237 | for (int y = 1; y < maze.h; ++y) |
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| 238 | if (!maze [x][y]) |
|
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| 239 | { |
|
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| 240 | // found first free space - picking the first one gives |
|
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| 241 | // us a slight bias for tunnels, but usually you won't |
|
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| 242 | // notice that in-game |
|
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| 243 | seeds.push (point (x, y)); |
|
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| 244 | |
|
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| 245 | // phase 2, while we have seeds, if |
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| 246 | // seed is empty, floodfill, else grow |
|
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| 247 | |
|
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| 248 | while (seeds.size) |
|
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| 249 | { |
310 | { |
| 250 | coroapi::cede_to_tick (); |
311 | // nothing here, continue to expand |
| 251 | |
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| 252 | point p = seeds.remove (rmg_rndm (seeds.size)); |
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| 253 | |
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| 254 | x = p.x; |
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| 255 | y = p.y; |
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| 256 | |
|
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| 257 | if (!maze [x][y]) |
|
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| 258 | { |
|
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| 259 | // found new isolated area, make tunnel? |
|
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| 260 | if (!dirty) |
|
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| 261 | push_flood_fill (maze, dist, seeds, x, y); |
|
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| 262 | |
|
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| 263 | make_tunnel (maze, dist, seeds, x, y, 255); |
|
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| 264 | |
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| 265 | if (dirty) |
|
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| 266 | push_flood_fill (maze, dist, seeds, x, y); |
|
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| 267 | } |
|
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| 268 | else |
|
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| 269 | { |
|
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| 270 | U8 d = U8 (dist [x][y]) + 1; |
312 | U8 d = U8 (dist [x][y]) + 1; |
| 271 | |
313 | |
| 272 | if (x < maze.w - 1 && U8 (dist [x + 1][y]) > d) |
314 | if (x < dist.w - 2) maybe_push (dist, seeds, x + 1, y, d); |
| 273 | { |
315 | if (x > 1) maybe_push (dist, seeds, x - 1, y, d); |
| 274 | dist [x + 1][y] = d; |
316 | if (y < dist.h - 2) maybe_push (dist, seeds, x, y + 1, d); |
| 275 | seeds.push (point (x + 1, y)); |
317 | if (y > 1) maybe_push (dist, seeds, x, y - 1, d); |
| 276 | } |
|
|
| 277 | |
|
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| 278 | if (x > 0 && U8 (dist [x - 1][y]) > d) |
|
|
| 279 | { |
|
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| 280 | dist [x - 1][y] = d; |
|
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| 281 | seeds.push (point (x - 1, y)); |
|
|
| 282 | } |
|
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| 283 | |
|
|
| 284 | if (y < maze.h - 1 && U8 (dist [x][y + 1]) > d) |
|
|
| 285 | { |
|
|
| 286 | dist [x][y + 1] = d; |
|
|
| 287 | seeds.push (point (x, y + 1)); |
|
|
| 288 | } |
|
|
| 289 | |
|
|
| 290 | if (y > 0 && U8 (dist [x][y - 1]) > d) |
|
|
| 291 | { |
|
|
| 292 | dist [x][y - 1] = d; |
|
|
| 293 | seeds.push (point (x, y - 1)); |
|
|
| 294 | } |
|
|
| 295 | } |
|
|
| 296 | } |
318 | } |
|
|
319 | } |
|
|
320 | } |
| 297 | |
321 | |
| 298 | goto success; |
322 | void |
| 299 | } |
323 | layout::isolation_remover () |
|
|
324 | { |
|
|
325 | layout dist (w, h); |
| 300 | |
326 | |
| 301 | success: |
|
|
| 302 | |
|
|
| 303 | // we mark free but visited floors as 1, undo this here |
|
|
| 304 | for (int x = 0; x < maze.w; ++x) |
327 | for (int x = 1; x < w - 1; ++x) |
| 305 | for (int y = 0; y < maze.h; ++y) |
328 | for (int y = 1; y < h - 1; ++y) |
| 306 | if (maze [x][y] == 1) |
329 | dist [x][y] = data [x][y] == '#' ? U8 (255) : 0; |
|
|
330 | |
|
|
331 | ::isolation_remover (dist); |
|
|
332 | |
|
|
333 | // now copy the tunnels over |
|
|
334 | for (int x = 1; x < w - 1; ++x) |
|
|
335 | for (int y = 1; y < h - 1; ++y) |
|
|
336 | if (data [x][y] == '#' && dist [x][y] == 1) |
| 307 | maze [x][y] = 0; |
337 | data [x][y] = 0; |
| 308 | } |
|
|
| 309 | |
|
|
| 310 | void |
|
|
| 311 | LayoutData::isolation_remover (bool dirty) |
|
|
| 312 | { |
|
|
| 313 | ::isolation_remover (*this, dirty); |
|
|
| 314 | } |
338 | } |
| 315 | |
339 | |
| 316 | ///////////////////////////////////////////////////////////////////////////// |
340 | ///////////////////////////////////////////////////////////////////////////// |
| 317 | |
341 | |
| 318 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
342 | // inspired mostly by http://www.jimrandomh.org/misc/caves.txt |
| 319 | void |
343 | void |
| 320 | LayoutData::gen_cave (int subtype) |
344 | layout::gen_cave (int subtype) |
| 321 | { |
345 | { |
| 322 | switch (subtype) |
346 | switch (subtype) |
| 323 | { |
347 | { |
| 324 | // a rough cave |
348 | // a rough cave |
| 325 | case 0: |
349 | case 0: |
| 326 | fill_rand (rmg_rndm (80, 95)); |
350 | fill_rand (rmg_rndm (85, 97)); |
| 327 | break; |
351 | break; |
| 328 | |
352 | |
| 329 | // corridors |
353 | // corridors |
| 330 | case 1: |
354 | case 1: |
| 331 | fill_rand (rmg_rndm (5, 40)); |
355 | fill_rand (rmg_rndm (5, 40)); |
| … | |
… | |
| 351 | |
375 | |
| 352 | border (); |
376 | border (); |
| 353 | isolation_remover (); |
377 | isolation_remover (); |
| 354 | } |
378 | } |
| 355 | |
379 | |
|
|
380 | ///////////////////////////////////////////////////////////////////////////// |
|
|
381 | |
|
|
382 | //+GPL |
|
|
383 | |
|
|
384 | /* puts doors at appropriate locations in a maze. */ |
|
|
385 | void |
|
|
386 | layout::doorify () |
|
|
387 | { |
|
|
388 | int ndoors = w * h / 60; /* reasonable number of doors. */ |
|
|
389 | int doorlocs = 0; /* # of available doorlocations */ |
|
|
390 | |
|
|
391 | uint16 *doorlist_x = salloc<uint16> (w * h); |
|
|
392 | uint16 *doorlist_y = salloc<uint16> (w * h); |
|
|
393 | |
|
|
394 | /* make a list of possible door locations */ |
|
|
395 | for (int i = 1; i < w - 1; i++) |
|
|
396 | for (int j = 1; j < h - 1; j++) |
|
|
397 | { |
|
|
398 | int sindex = surround_flag (*this, i, j); |
|
|
399 | |
|
|
400 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
|
|
401 | { |
|
|
402 | doorlist_x [doorlocs] = i; |
|
|
403 | doorlist_y [doorlocs] = j; |
|
|
404 | doorlocs++; |
|
|
405 | } |
|
|
406 | } |
|
|
407 | |
|
|
408 | while (ndoors > 0 && doorlocs > 0) |
|
|
409 | { |
|
|
410 | int di = rmg_rndm (doorlocs); |
|
|
411 | int i = doorlist_x [di]; |
|
|
412 | int j = doorlist_y [di]; |
|
|
413 | int sindex = surround_flag (*this, i, j); |
|
|
414 | |
|
|
415 | if (sindex == 3 || sindex == 12) /* these are possible door sindex */ |
|
|
416 | { |
|
|
417 | data [i][j] = 'D'; |
|
|
418 | ndoors--; |
|
|
419 | } |
|
|
420 | |
|
|
421 | /* reduce the size of the list */ |
|
|
422 | doorlocs--; |
|
|
423 | doorlist_x[di] = doorlist_x [doorlocs]; |
|
|
424 | doorlist_y[di] = doorlist_y [doorlocs]; |
|
|
425 | } |
|
|
426 | |
|
|
427 | sfree (doorlist_x, w * h); |
|
|
428 | sfree (doorlist_y, w * h); |
|
|
429 | } |
|
|
430 | |
|
|
431 | /* takes a map and makes it symmetric: adjusts Xsize and |
|
|
432 | * Ysize to produce a symmetric map. |
|
|
433 | */ |
|
|
434 | void |
|
|
435 | layout::symmetrize (int symmetry) |
|
|
436 | { |
|
|
437 | if (symmetry == SYMMETRY_NONE) |
|
|
438 | return; |
|
|
439 | |
|
|
440 | layout sym_layout ( |
|
|
441 | symmetry == SYMMETRY_X || symmetry == SYMMETRY_XY ? w * 2 - 3 : w, |
|
|
442 | symmetry == SYMMETRY_Y || symmetry == SYMMETRY_XY ? h * 2 - 3 : h |
|
|
443 | ); |
|
|
444 | |
|
|
445 | if (symmetry == SYMMETRY_X) |
|
|
446 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
|
|
447 | for (int j = 0; j < sym_layout.h; j++) |
|
|
448 | { |
|
|
449 | sym_layout[i ][j] = |
|
|
450 | sym_layout[sym_layout.w - i - 1][j] = data [i][j]; |
|
|
451 | } |
|
|
452 | |
|
|
453 | if (symmetry == SYMMETRY_Y) |
|
|
454 | for (int i = 0; i < sym_layout.w; i++) |
|
|
455 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
|
|
456 | { |
|
|
457 | sym_layout[i][j ] = |
|
|
458 | sym_layout[i][sym_layout.h - j - 1] = data [i][j]; |
|
|
459 | } |
|
|
460 | |
|
|
461 | if (symmetry == SYMMETRY_XY) |
|
|
462 | for (int i = 0; i < sym_layout.w / 2 + 1; i++) |
|
|
463 | for (int j = 0; j < sym_layout.h / 2 + 1; j++) |
|
|
464 | { |
|
|
465 | sym_layout[i ][j ] = |
|
|
466 | sym_layout[i ][sym_layout.h - j - 1] = |
|
|
467 | sym_layout[sym_layout.w - i - 1][j ] = |
|
|
468 | sym_layout[sym_layout.w - i - 1][sym_layout.h - j - 1] = data [i][j]; |
|
|
469 | } |
|
|
470 | |
|
|
471 | /* need to run the isolation remover for some layouts */ |
|
|
472 | #if 0 |
|
|
473 | switch (RP->map_layout_style) |
|
|
474 | { |
|
|
475 | case LAYOUT_ONION: |
|
|
476 | case LAYOUT_SNAKE: |
|
|
477 | case LAYOUT_SQUARE_SPIRAL: |
|
|
478 | // safe |
|
|
479 | break; |
|
|
480 | |
|
|
481 | default: |
|
|
482 | sym_layout.isolation_remover (); |
|
|
483 | break; |
|
|
484 | } |
|
|
485 | #endif |
|
|
486 | sym_layout.isolation_remover (); |
|
|
487 | |
|
|
488 | swap (sym_layout); |
|
|
489 | } |
|
|
490 | |
|
|
491 | //-GPL |
|
|
492 | |
|
|
493 | void |
|
|
494 | layout::rotate (int rotation) |
|
|
495 | { |
|
|
496 | switch (rotation & 3) |
|
|
497 | { |
|
|
498 | case 2: /* a reflection */ |
|
|
499 | { |
|
|
500 | layout new_layout (w, h); |
|
|
501 | |
|
|
502 | for (int i = 0; i < w; i++) /* copy a reflection back */ |
|
|
503 | for (int j = 0; j < h; j++) |
|
|
504 | new_layout [i][j] = data [w - i - 1][h - j - 1]; |
|
|
505 | |
|
|
506 | swap (new_layout); |
|
|
507 | } |
|
|
508 | break; |
|
|
509 | |
|
|
510 | case 1: |
|
|
511 | case 3: |
|
|
512 | { |
|
|
513 | layout new_layout (h, w); |
|
|
514 | |
|
|
515 | if (rotation == 1) /* swap x and y */ |
|
|
516 | for (int i = 0; i < w; i++) |
|
|
517 | for (int j = 0; j < h; j++) |
|
|
518 | new_layout [j][i] = data [i][j]; |
|
|
519 | |
|
|
520 | if (rotation == 3) /* swap x and y */ |
|
|
521 | for (int i = 0; i < w; i++) |
|
|
522 | for (int j = 0; j < h; j++) |
|
|
523 | new_layout [j][i] = data [w - i - 1][h - j - 1]; |
|
|
524 | |
|
|
525 | swap (new_layout); |
|
|
526 | } |
|
|
527 | break; |
|
|
528 | } |
|
|
529 | } |
|
|
530 | |
|
|
531 | ///////////////////////////////////////////////////////////////////////////// |
|
|
532 | |
|
|
533 | //+GPL |
|
|
534 | |
|
|
535 | /* |
|
|
536 | * Expands a maze by 2x in each dimension. |
|
|
537 | * H. S. Teoh |
|
|
538 | */ |
|
|
539 | |
|
|
540 | /* Copy the old tile X into the new one at location (i*2, j*2) and |
|
|
541 | * fill up the rest of the 2x2 result with \0: |
|
|
542 | * X ---> X \0 |
|
|
543 | * \0 \0 |
|
|
544 | */ |
|
|
545 | static void inline |
|
|
546 | expand_misc (layout &newlayout, int i, int j, layout &maze) |
|
|
547 | { |
|
|
548 | newlayout[i * 2 + rmg_rndm (1)][j * 2 + rmg_rndm (1)] = maze[i][j]; |
|
|
549 | /* (Note: no need to reset rest of 2x2 area to \0 because calloc does that |
|
|
550 | * for us.) */ |
|
|
551 | } |
|
|
552 | |
|
|
553 | /* Returns a bitmap that represents which squares on the right and bottom |
|
|
554 | * edges of a square (i,j) match the given character: |
|
|
555 | * 1 match on (i+1, j) |
|
|
556 | * 2 match on (i, j+1) |
|
|
557 | * 4 match on (i+1, j+1) |
|
|
558 | * and the possible combinations thereof. |
|
|
559 | */ |
|
|
560 | static int noinline |
|
|
561 | calc_pattern (char ch, layout &maze, int i, int j) |
|
|
562 | { |
|
|
563 | int pattern = 0; |
|
|
564 | |
|
|
565 | if (i + 1 < maze.w && maze[i + 1][j] == ch) |
|
|
566 | pattern |= 1; |
|
|
567 | |
|
|
568 | if (j + 1 < maze.h) |
|
|
569 | { |
|
|
570 | if (maze[i][j + 1] == ch) |
|
|
571 | pattern |= 2; |
|
|
572 | |
|
|
573 | if (i + 1 < maze.w && maze[i + 1][j + 1] == ch) |
|
|
574 | pattern |= 4; |
|
|
575 | } |
|
|
576 | |
|
|
577 | return pattern; |
|
|
578 | } |
|
|
579 | |
|
|
580 | /* Expand a wall. This function will try to sensibly connect the resulting |
|
|
581 | * wall to adjacent wall squares, so that the result won't have disconnected |
|
|
582 | * walls. |
|
|
583 | */ |
|
|
584 | static void inline |
|
|
585 | expand_wall (layout &newlayout, int i, int j, layout &maze) |
|
|
586 | { |
|
|
587 | int wall_pattern = calc_pattern ('#', maze, i, j); |
|
|
588 | int door_pattern = calc_pattern ('D', maze, i, j); |
|
|
589 | int both_pattern = wall_pattern | door_pattern; |
|
|
590 | |
|
|
591 | newlayout[i * 2][j * 2] = '#'; |
|
|
592 | |
|
|
593 | if (i + 1 < maze.w) |
|
|
594 | { |
|
|
595 | if (both_pattern & 1) |
|
|
596 | { /* join walls/doors to the right */ |
|
|
597 | /* newlayout[i*2+1][j*2] = '#'; */ |
|
|
598 | newlayout[i * 2 + 1][j * 2] = maze[i + 1][j]; |
|
|
599 | } |
|
|
600 | } |
|
|
601 | |
|
|
602 | if (j + 1 < maze.h) |
|
|
603 | { |
|
|
604 | if (both_pattern & 2) |
|
|
605 | { /* join walls/doors to the bottom */ |
|
|
606 | /* newlayout[i*2][j*2+1] = '#'; */ |
|
|
607 | newlayout[i * 2][j * 2 + 1] = maze[i][j + 1]; |
|
|
608 | } |
|
|
609 | |
|
|
610 | if (wall_pattern == 7) |
|
|
611 | { /* if orig maze is a 2x2 wall block, |
|
|
612 | * we fill the result with walls. */ |
|
|
613 | newlayout[i * 2 + 1][j * 2 + 1] = '#'; |
|
|
614 | } |
|
|
615 | } |
|
|
616 | } |
|
|
617 | |
|
|
618 | /* This function will try to sensibly connect doors so that they meet up with |
|
|
619 | * adjacent walls. Note that it will also presumptuously delete (ignore) doors |
|
|
620 | * that it doesn't know how to correctly expand. |
|
|
621 | */ |
|
|
622 | static void inline |
|
|
623 | expand_door (layout &newlayout, int i, int j, layout &maze) |
|
|
624 | { |
|
|
625 | int wall_pattern = calc_pattern ('#', maze, i, j); |
|
|
626 | int door_pattern = calc_pattern ('D', maze, i, j); |
|
|
627 | int join_pattern; |
|
|
628 | |
|
|
629 | /* Doors "like" to connect to walls more than other doors. If there is |
|
|
630 | * a wall and another door, this door will connect to the wall and |
|
|
631 | * disconnect from the other door. */ |
|
|
632 | if (wall_pattern & 3) |
|
|
633 | join_pattern = wall_pattern; |
|
|
634 | else |
|
|
635 | join_pattern = door_pattern; |
|
|
636 | |
|
|
637 | newlayout[i * 2][j * 2] = 'D'; |
|
|
638 | |
|
|
639 | if (i + 1 < maze.w) |
|
|
640 | if (join_pattern & 1) |
|
|
641 | /* there is a door/wall to the right */ |
|
|
642 | newlayout[i * 2 + 1][j * 2] = 'D'; |
|
|
643 | |
|
|
644 | if (j + 1 < maze.h) |
|
|
645 | if (join_pattern & 2) |
|
|
646 | /* there is a door/wall below */ |
|
|
647 | newlayout[i * 2][j * 2 + 1] = 'D'; |
|
|
648 | } |
|
|
649 | |
|
|
650 | void |
|
|
651 | layout::expand2x () |
|
|
652 | { |
|
|
653 | layout new_layout (w * 2 - 1, h * 2 - 1); |
|
|
654 | |
|
|
655 | new_layout.clear (); |
|
|
656 | |
|
|
657 | for (int i = 0; i < w; i++) |
|
|
658 | for (int j = 0; j < h; j++) |
|
|
659 | switch (data [i][j]) |
|
|
660 | { |
|
|
661 | case '#': expand_wall (new_layout, i, j, *this); break; |
|
|
662 | case 'D': expand_door (new_layout, i, j, *this); break; |
|
|
663 | default: expand_misc (new_layout, i, j, *this); break; |
|
|
664 | } |
|
|
665 | |
|
|
666 | swap (new_layout); |
|
|
667 | } |
|
|
668 | |
|
|
669 | ///////////////////////////////////////////////////////////////////////////// |
|
|
670 | |
|
|
671 | /* checks the maze to see if I can stick a horizontal(dir = 0) wall |
|
|
672 | (or vertical, dir == 1) |
|
|
673 | here which ends up on other walls sensibly. */ |
|
|
674 | static int |
|
|
675 | can_make_wall (const layout &maze, int dx, int dy, int dir) |
|
|
676 | { |
|
|
677 | int i1; |
|
|
678 | int length = 0; |
|
|
679 | |
|
|
680 | /* dont make walls if we're on the edge. */ |
|
|
681 | if (dx == 0 || dx == (maze.w - 1) || dy == 0 || dy == (maze.h - 1)) |
|
|
682 | return -1; |
|
|
683 | |
|
|
684 | /* don't make walls if we're ON a wall. */ |
|
|
685 | if (maze [dx][dy] != 0) |
|
|
686 | return -1; |
|
|
687 | |
|
|
688 | if (dir == 0) /* horizontal */ |
|
|
689 | { |
|
|
690 | int y = dy; |
|
|
691 | |
|
|
692 | for (i1 = dx - 1; i1 > 0; i1--) |
|
|
693 | { |
|
|
694 | int sindex = surround_flag2 (maze, i1, y); |
|
|
695 | |
|
|
696 | if (sindex == 1) break; |
|
|
697 | if (sindex != 0) return -1; /* can't make horiz. wall here */ |
|
|
698 | if (maze[i1][y] != 0) return -1; /* can't make horiz. wall here */ |
|
|
699 | |
|
|
700 | length++; |
|
|
701 | } |
|
|
702 | |
|
|
703 | for (i1 = dx + 1; i1 < maze.w - 1; i1++) |
|
|
704 | { |
|
|
705 | int sindex = surround_flag2 (maze, i1, y); |
|
|
706 | |
|
|
707 | if (sindex == 2) break; |
|
|
708 | if (sindex != 0) return -1; /* can't make horiz. wall here */ |
|
|
709 | if (maze[i1][y] != 0) return -1; /* can't make horiz. wall here */ |
|
|
710 | |
|
|
711 | length++; |
|
|
712 | } |
|
|
713 | return length; |
|
|
714 | } |
|
|
715 | else |
|
|
716 | { /* vertical */ |
|
|
717 | int x = dx; |
|
|
718 | |
|
|
719 | for (i1 = dy - 1; i1 > 0; i1--) |
|
|
720 | { |
|
|
721 | int sindex = surround_flag2 (maze, x, i1); |
|
|
722 | |
|
|
723 | if (sindex == 4) break; |
|
|
724 | if (sindex != 0) return -1; /* can't make vert. wall here */ |
|
|
725 | if (maze[x][i1] != 0) return -1; /* can't make horiz. wall here */ |
|
|
726 | |
|
|
727 | length++; |
|
|
728 | } |
|
|
729 | |
|
|
730 | for (i1 = dy + 1; i1 < maze.h - 1; i1++) |
|
|
731 | { |
|
|
732 | int sindex = surround_flag2 (maze, x, i1); |
|
|
733 | |
|
|
734 | if (sindex == 8) break; |
|
|
735 | if (sindex != 0) return -1; /* can't make verti. wall here */ |
|
|
736 | if (maze[x][i1] != 0) return -1; /* can't make horiz. wall here */ |
|
|
737 | |
|
|
738 | length++; |
|
|
739 | } |
|
|
740 | |
|
|
741 | return length; |
|
|
742 | } |
|
|
743 | |
|
|
744 | return -1; |
|
|
745 | } |
|
|
746 | |
|
|
747 | int |
|
|
748 | make_wall (char **maze, int x, int y, int dir) |
|
|
749 | { |
|
|
750 | maze[x][y] = 'D'; /* mark a door */ |
|
|
751 | |
|
|
752 | switch (dir) |
|
|
753 | { |
|
|
754 | case 0: /* horizontal */ |
|
|
755 | { |
|
|
756 | for (int i1 = x - 1; maze[i1][y] == 0; --i1) maze[i1][y] = '#'; |
|
|
757 | for (int i1 = x + 1; maze[i1][y] == 0; ++i1) maze[i1][y] = '#'; |
|
|
758 | break; |
|
|
759 | } |
|
|
760 | case 1: /* vertical */ |
|
|
761 | { |
|
|
762 | for (int i1 = y - 1; maze[x][i1] == 0; --i1) maze[x][i1] = '#'; |
|
|
763 | for (int i1 = y + 1; maze[x][i1] == 0; ++i1) maze[x][i1] = '#'; |
|
|
764 | break; |
|
|
765 | } |
|
|
766 | } |
|
|
767 | |
|
|
768 | return 0; |
|
|
769 | } |
|
|
770 | |
|
|
771 | void |
|
|
772 | layout::roomify () |
|
|
773 | { |
|
|
774 | int tries = w * h / 30; |
|
|
775 | |
|
|
776 | for (int ti = 0; ti < tries; ti++) |
|
|
777 | { |
|
|
778 | /* starting location for looking at creating a door */ |
|
|
779 | int dx = rmg_rndm (w); |
|
|
780 | int dy = rmg_rndm (h); |
|
|
781 | |
|
|
782 | /* results of checking on creating walls. */ |
|
|
783 | int cx = can_make_wall (*this, dx, dy, 0); /* horizontal */ |
|
|
784 | int cy = can_make_wall (*this, dx, dy, 1); /* vertical */ |
|
|
785 | |
|
|
786 | if (cx == -1) |
|
|
787 | { |
|
|
788 | if (cy != -1) |
|
|
789 | make_wall (*this, dx, dy, 1); |
|
|
790 | |
|
|
791 | continue; |
|
|
792 | } |
|
|
793 | |
|
|
794 | if (cy == -1) |
|
|
795 | { |
|
|
796 | make_wall (*this, dx, dy, 0); |
|
|
797 | continue; |
|
|
798 | } |
|
|
799 | |
|
|
800 | if (cx < cy) |
|
|
801 | make_wall (*this, dx, dy, 0); |
|
|
802 | else |
|
|
803 | make_wall (*this, dx, dy, 1); |
|
|
804 | } |
|
|
805 | } |
|
|
806 | |
|
|
807 | ///////////////////////////////////////////////////////////////////////////// |
|
|
808 | |
|
|
809 | /* function selects the maze function and gives it whatever |
|
|
810 | arguments it needs. */ |
|
|
811 | void |
|
|
812 | layout::generate (random_map_params *RP) |
|
|
813 | { |
|
|
814 | switch (RP->map_layout_style) |
|
|
815 | { |
|
|
816 | case LAYOUT_ONION: |
|
|
817 | map_gen_onion (*this, RP->layoutoptions1, RP->layoutoptions2); |
|
|
818 | |
|
|
819 | if (!(rmg_rndm (3)) && !(RP->layoutoptions1 & (RMOPT_WALLS_ONLY | RMOPT_WALL_OFF))) |
|
|
820 | roomify (); |
|
|
821 | |
|
|
822 | break; |
|
|
823 | |
|
|
824 | case LAYOUT_MAZE: |
|
|
825 | maze_gen (*this, RP->get_iv ("maze_type", rmg_rndm (4))); |
|
|
826 | |
|
|
827 | if (rmg_rndm (2)) |
|
|
828 | doorify (); |
|
|
829 | |
|
|
830 | break; |
|
|
831 | |
|
|
832 | case LAYOUT_SPIRAL: |
|
|
833 | map_gen_spiral (*this, RP->layoutoptions1); |
|
|
834 | |
|
|
835 | if (rmg_rndm (2)) |
|
|
836 | doorify (); |
|
|
837 | |
|
|
838 | break; |
|
|
839 | |
|
|
840 | case LAYOUT_ROGUELIKE: |
|
|
841 | /* Don't put symmetry in rogue maps. There isn't much reason to |
|
|
842 | * do so in the first place (doesn't make it any more interesting), |
|
|
843 | * but more importantly, the symmetry code presumes we are symmetrizing |
|
|
844 | * spirals, or maps with lots of passages - making a symmetric rogue |
|
|
845 | * map fails because its likely that the passages the symmetry process |
|
|
846 | * creates may not connect the rooms. |
|
|
847 | */ |
|
|
848 | RP->symmetry_used = SYMMETRY_NONE; |
|
|
849 | roguelike_layout_gen (*this, RP->layoutoptions1); |
|
|
850 | /* no doorifying... done already */ |
|
|
851 | break; |
|
|
852 | |
|
|
853 | case LAYOUT_SNAKE: |
|
|
854 | make_snake_layout (*this, RP->layoutoptions1); |
|
|
855 | |
|
|
856 | if (rmg_rndm (2)) |
|
|
857 | roomify (); |
|
|
858 | |
|
|
859 | break; |
|
|
860 | |
|
|
861 | case LAYOUT_SQUARE_SPIRAL: |
|
|
862 | make_square_spiral_layout (*this, RP->layoutoptions1); |
|
|
863 | |
|
|
864 | if (rmg_rndm (2)) |
|
|
865 | roomify (); |
|
|
866 | |
|
|
867 | break; |
|
|
868 | |
|
|
869 | case LAYOUT_CAVE: |
|
|
870 | gen_cave (RP->get_iv ("cave_type", rmg_rndm (4))); |
|
|
871 | |
|
|
872 | if (rmg_rndm (2)) |
|
|
873 | doorify (); |
|
|
874 | |
|
|
875 | break; |
|
|
876 | |
|
|
877 | default: |
|
|
878 | abort (); |
|
|
879 | } |
|
|
880 | |
|
|
881 | /* rotate the maze randomly */ |
|
|
882 | rotate (rmg_rndm (4)); |
|
|
883 | |
|
|
884 | symmetrize (RP->symmetry_used); |
|
|
885 | |
|
|
886 | #if 0 |
|
|
887 | print ();//D |
|
|
888 | #endif |
|
|
889 | |
|
|
890 | if (RP->expand2x) |
|
|
891 | expand2x (); |
|
|
892 | } |
|
|
893 | |
|
|
894 | //-GPL |
|
|
895 | |
| 356 | #if 0 |
896 | #if 0 |
| 357 | static struct demo |
897 | static struct demo |
| 358 | { |
898 | { |
| 359 | demo () |
899 | demo () |
| 360 | { |
900 | { |
| 361 | Layout maze (40, 25); |
|
|
| 362 | rmg_rndm.seed (time (0)); |
901 | rmg_rndm.seed (time (0)); |
| 363 | |
902 | |
| 364 | for(int i=1;i<10;i) |
903 | for(int i=1;i<100;i++) |
| 365 | { |
904 | { |
| 366 | maze->gen_cave (3); |
905 | layout maze (40, 25); |
|
|
906 | maze.fill_rand (85); |
|
|
907 | maze.border (); |
|
|
908 | maze.isolation_remover (); |
| 367 | maze->print (); |
909 | maze.print (); |
| 368 | } |
910 | } |
| 369 | |
911 | |
| 370 | exit (1); |
912 | exit (1); |
| 371 | } |
913 | } |
| 372 | } demo; |
914 | } demo; |
