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| 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> |
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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> |
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| 40 | |
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| 41 | #ifndef MIN |
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| 42 | # define MIN(x,y) (((x)<(y))? (x):(y)) |
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| 43 | #endif |
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| 44 | #ifndef MAX |
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| 45 | # define MAX(x,y) (((x)<(y))? (y):(x)) |
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| 46 | #endif |
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| 47 | |
40 | |
| 48 | #define MINDIST 3 |
41 | #define MINDIST 3 |
| 49 | |
42 | |
| 50 | #define MAX_FINE .454545 |
43 | #define MAX_FINE .454545 |
| 51 | |
44 | |
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| 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 */ |
