| 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 (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
4 | * Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
| 5 | * Copyright (©) 1994,2007 Mark Wedel |
5 | * Copyright (©) 1994 Mark Wedel |
| 6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * Copyright (©) 1992 Frank Tore Johansen |
| 7 | * |
7 | * |
| 8 | * Deliantra is free software: you can redistribute it and/or modify it under |
8 | * Deliantra is free software: you can redistribute it and/or modify it under |
| 9 | * the terms of the Affero GNU General Public License as published by the |
9 | * the terms of the Affero GNU General Public License as published by the |
| 10 | * Free Software Foundation, either version 3 of the License, or (at your |
10 | * Free Software Foundation, either version 3 of the License, or (at your |
| 11 | * option) any later version. |
11 | * option) any later version. |
| … | |
… | |
| 28 | char **map_gen_spiral(int xsize, int ysize, int option); |
28 | char **map_gen_spiral(int xsize, int ysize, int option); |
| 29 | */ |
29 | */ |
| 30 | |
30 | |
| 31 | #include <global.h> |
31 | #include <global.h> |
| 32 | #include <random_map.h> |
32 | #include <random_map.h> |
|
|
33 | #include <rproto.h> |
| 33 | |
34 | |
| 34 | #define RANDOM_OPTIONS 0 /* Pick random options below */ |
35 | #define RANDOM_OPTIONS 0 /* Pick random options below */ |
| 35 | #define REGULAR_SPIRAL 1 /* Regular spiral--distance increases constantly */ |
36 | #define REGULAR_SPIRAL 1 /* Regular spiral--distance increases constantly */ |
| 36 | #define FINE_SPIRAL 2 /* uses the min. separation: most coiling */ |
37 | #define FINE_SPIRAL 2 /* uses the min. separation: most coiling */ |
| 37 | #define FIT_SPIRAL 4 /* scale to a rectangular region, not square */ |
38 | #define FIT_SPIRAL 4 /* scale to a rectangular region, not square */ |
| 38 | #define MAX_SPIRAL_OPT 8 /* this should be 2x the last real option */ |
39 | #define MAX_SPIRAL_OPT 8 /* this should be 2x the last real option */ |
| 39 | #include <math.h> |
|
|
| 40 | |
|
|
| 41 | #ifndef MIN |
|
|
| 42 | # define MIN(x,y) (((x)<(y))? (x):(y)) |
|
|
| 43 | #endif |
|
|
| 44 | #ifndef MAX |
|
|
| 45 | # define MAX(x,y) (((x)<(y))? (y):(x)) |
|
|
| 46 | #endif |
|
|
| 47 | |
40 | |
| 48 | #define MINDIST 3 |
41 | #define MINDIST 3 |
| 49 | |
42 | |
| 50 | #define MAX_FINE .454545 |
43 | #define MAX_FINE .454545 |
| 51 | |
44 | |
| … | |
… | |
| 107 | yscale *= (float) ysize / (float) xsize; |
100 | yscale *= (float) ysize / (float) xsize; |
| 108 | } |
101 | } |
| 109 | |
102 | |
| 110 | if (option & REGULAR_SPIRAL) |
103 | if (option & REGULAR_SPIRAL) |
| 111 | { |
104 | { |
| 112 | float scale = MIN (xscale, yscale); |
105 | float scale = min (xscale, yscale); |
| 113 | |
106 | |
| 114 | xscale = yscale = scale; |
107 | xscale = yscale = scale; |
| 115 | } |
108 | } |
| 116 | |
109 | |
| 117 | /* cut out the spiral */ |
110 | /* cut out the spiral */ |
