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root |
1.4 |
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elmex |
1.1 |
/* peterm@langmuir.eecs.berkeley.edu: this function generates a random |
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snake-type layout. |
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input: xsize, ysize; |
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output: a char** array with # and . for closed and open respectively. |
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a char value of 0 represents a blank space: a '#' is |
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a wall. |
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*/ |
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#include <global.h> |
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root |
1.7 |
#include "random_map.h" |
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#include "rproto.h" |
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elmex |
1.1 |
|
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root |
1.8 |
void |
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root |
1.9 |
make_snake_layout (Layout maze, int options) |
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root |
1.2 |
{ |
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int i, j; |
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elmex |
1.1 |
|
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root |
1.8 |
maze->clear (); |
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maze->border (); |
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elmex |
1.1 |
|
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root |
1.8 |
int xsize = maze->w; |
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int ysize = maze->h; |
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elmex |
1.1 |
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/* Bail out if the size is too small to make a snake. */ |
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root |
1.2 |
if (xsize < 8 || ysize < 8) |
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root |
1.8 |
return; |
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elmex |
1.1 |
|
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/* decide snake orientation--vertical or horizontal , and |
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make the walls and place the doors. */ |
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root |
1.10 |
if (rmg_rndm (2)) |
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root |
1.2 |
{ /* vertical orientation */ |
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root |
1.10 |
int n_walls = rmg_rndm (xsize - 5) / 3 + 1; |
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root |
1.2 |
int spacing = xsize / (n_walls + 1); |
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int orientation = 1; |
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for (i = spacing; i < xsize - 3; i += spacing) |
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{ |
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if (orientation) |
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{ |
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for (j = 1; j < ysize - 2; j++) |
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root |
1.7 |
maze[i][j] = '#'; |
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root |
1.2 |
maze[i][j] = 'D'; |
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} |
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else |
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{ |
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for (j = 2; j < ysize; j++) |
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root |
1.7 |
maze[i][j] = '#'; |
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root |
1.2 |
maze[i][1] = 'D'; |
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} |
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root |
1.7 |
|
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root |
1.2 |
orientation ^= 1; /* toggle the value of orientation */ |
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elmex |
1.1 |
} |
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} |
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root |
1.2 |
else |
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{ /* horizontal orientation */ |
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root |
1.10 |
int n_walls = rmg_rndm (ysize - 5) / 3 + 1; |
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root |
1.2 |
int spacing = ysize / (n_walls + 1); |
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int orientation = 1; |
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for (i = spacing; i < ysize - 3; i += spacing) |
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{ |
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if (orientation) |
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{ |
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for (j = 1; j < xsize - 2; j++) |
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root |
1.7 |
maze[j][i] = '#'; |
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root |
1.2 |
maze[j][i] = 'D'; |
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} |
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else |
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{ |
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for (j = 2; j < xsize; j++) |
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root |
1.7 |
maze[j][i] = '#'; |
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root |
1.2 |
maze[1][i] = 'D'; |
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} |
| 83 |
root |
1.7 |
|
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root |
1.2 |
orientation ^= 1; /* toggle the value of orientation */ |
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elmex |
1.1 |
} |
| 86 |
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} |
| 87 |
root |
1.2 |
|
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elmex |
1.1 |
/* place the exit up/down */ |
| 89 |
root |
1.10 |
if (rmg_rndm (2)) |
| 90 |
root |
1.2 |
{ |
| 91 |
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maze[1][1] = '<'; |
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maze[xsize - 2][ysize - 2] = '>'; |
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} |
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elmex |
1.1 |
else |
| 95 |
root |
1.2 |
{ |
| 96 |
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maze[1][1] = '>'; |
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maze[xsize - 2][ysize - 2] = '<'; |
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} |
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elmex |
1.1 |
} |
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root |
1.7 |
|
