server/random_maps/square_spiral.c

/*
 * static char *rcsid_map_c =
 *   "$Id$";
 */

/*
    CrossFire, A Multiplayer game for X-windows

    Copyright (C) 2001 Mark Wedel & Crossfire Development Team
    Copyright (C) 1992 Frank Tore Johansen

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

    The authors can be reached via e-mail at crossfire-devel@real-time.com
*/


/* peterm@langmuir.eecs.berkeley.edu:  this function generates a random
snake-type layout.

input:  xsize, ysize;
output:  a char** array with # and . for closed and open respectively.

a char value of 0 represents a blank space:  a '#' is
a wall.

*/


#include <stdio.h>
#include <global.h>
#include <time.h>

#include <maze_gen.h>
#include <room_gen.h>
#include <random_map.h>
#include <sproto.h>
#include <rproto.h>


char **map_gen_onion(int xsize, int ysize, int option, int layers);


/* These are some helper functions which help with
   manipulating a centered onion and turning it into
   a square spiral */

/* this starts from within a centered onion layer (or between two layers),
   and looks up until it finds a wall, and then looks right until it
   finds a vertical wall, i.e., the corner.  It sets cx and cy to that.
   it also starts from cx and cy. */

void find_top_left_corner(char **maze,int *cx, int *cy) {

  (*cy)--;
  /* find the top wall. */
  while(maze[*cx][*cy]==0) (*cy)--;
  /* proceed right until a corner is detected */
  while(maze[*cx][*cy+1]==0) (*cx)++;
  
  /* cx and cy should now be the top-right corner of the onion layer */
}


char **make_square_spiral_layout(int xsize, int ysize,int options) {
  int i,j;
  int cx,cy;
  int tx,ty;

  /* generate and allocate a doorless, centered onion */
  char **maze = map_gen_onion(xsize,ysize,OPT_CENTERED | OPT_NO_DOORS,0);

  /* find the layout center.  */
  cx = 0; cy = 0;
  for(i=0;i<xsize;i++)
    for(j=0;j<ysize;j++) {
      if(maze[i][j]=='C' ) {
        cx = i; cy=j;
      }
    }
  tx = cx; ty = cy;
  while(1) {
    find_top_left_corner(maze,&tx,&ty);

    if(ty < 2 || tx < 2 || tx > xsize -2 || ty > ysize-2 ) break;
    make_wall(maze,tx,ty-1,1);  /* make a vertical wall with a door */

    maze[tx][ty-1]='#'; /* convert the door that make_wall puts here to a wall */
    maze[tx-1][ty]='D';/* make a doorway out of this layer */

    /* walk left until we find the top-left corner */
    while((tx>2) && maze[tx-1][ty]) tx--;

    make_wall(maze,tx-1,ty,0);     /* make a horizontal wall with a door */

    /* walk down until we find the bottom-left corner */
    while(((ty+1) < ysize) && maze[tx][ty+1] ) ty++;

    make_wall(maze,tx,ty+1,1);    /* make a vertical wall with a door */

    /* walk rightuntil we find the bottom-right corner */
    while(((tx + 1) < xsize) && maze[tx+1][ty]) tx++;
    
    make_wall(maze,tx+1,ty,0);   /* make a horizontal wall with a door */
    tx++;  /* set up for next layer. */
  }
      
  /* place the exits.  */

  if(RANDOM() %2) {
    maze[cx][cy]='>';
    maze[xsize-2][1]='<';
  }
  else {
    maze[cx][cy]='<';
    maze[xsize-2][1]='>';
  }
    
  return maze;
}


Revision:	1.2
Committed:	Sun Aug 13 17:16:03 2006 UTC (20 years, 2 months ago) by elmex
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.1:	+1 -1 lines
State:	*FILE REMOVED*
Log Message:	Made server compile with C++. Removed cfanim plugin and crossedit. C++ here we come.
#	Content
1	/*
2	* static char *rcsid_map_c =
3	* "$Id$";
4	*/
5
6	/*
7	CrossFire, A Multiplayer game for X-windows
8
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen
11
12	This program is free software; you can redistribute it and/or modify
13	it under the terms of the GNU General Public License as published by
14	the Free Software Foundation; either version 2 of the License, or
15	(at your option) any later version.
16
17	This program is distributed in the hope that it will be useful,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.
21
22	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25
26	The authors can be reached via e-mail at crossfire-devel@real-time.com
27	*/
28
29
30	/* peterm@langmuir.eecs.berkeley.edu: this function generates a random
31	snake-type layout.
32
33	input: xsize, ysize;
34	output: a char** array with # and . for closed and open respectively.
35
36	a char value of 0 represents a blank space: a '#' is
37	a wall.
38
39	*/
40
41
42	#include <stdio.h>
43	#include <global.h>
44	#include <time.h>
45
46	#include <maze_gen.h>
47	#include <room_gen.h>
48	#include <random_map.h>
49	#include <sproto.h>
50	#include <rproto.h>
51
52
53	char **map_gen_onion(int xsize, int ysize, int option, int layers);
54
55
56	/* These are some helper functions which help with
57	manipulating a centered onion and turning it into
58	a square spiral */
59
60	/* this starts from within a centered onion layer (or between two layers),
61	and looks up until it finds a wall, and then looks right until it
62	finds a vertical wall, i.e., the corner. It sets cx and cy to that.
63	it also starts from cx and cy. */
64
65	void find_top_left_corner(char *maze,int cx, int *cy) {
66
67	(*cy)--;
68	/* find the top wall. */
69	while(maze[cx][cy]==0) (*cy)--;
70	/* proceed right until a corner is detected */
71	while(maze[cx][cy+1]==0) (*cx)++;
72
73	/* cx and cy should now be the top-right corner of the onion layer */
74	}
75
76
77	char **make_square_spiral_layout(int xsize, int ysize,int options) {
78	int i,j;
79	int cx,cy;
80	int tx,ty;
81
82	/* generate and allocate a doorless, centered onion */
83	char **maze = map_gen_onion(xsize,ysize,OPT_CENTERED \| OPT_NO_DOORS,0);
84
85	/* find the layout center. */
86	cx = 0; cy = 0;
87	for(i=0;i<xsize;i++)
88	for(j=0;j<ysize;j++) {
89	if(maze[i][j]=='C' ) {
90	cx = i; cy=j;
91	}
92	}
93	tx = cx; ty = cy;
94	while(1) {
95	find_top_left_corner(maze,&tx,&ty);
96
97	if(ty < 2 \|\| tx < 2 \|\| tx > xsize -2 \|\| ty > ysize-2 ) break;
98	make_wall(maze,tx,ty-1,1); /* make a vertical wall with a door */
99
100	maze[tx][ty-1]='#'; /* convert the door that make_wall puts here to a wall */
101	maze[tx-1][ty]='D';/* make a doorway out of this layer */
102
103	/* walk left until we find the top-left corner */
104	while((tx>2) && maze[tx-1][ty]) tx--;
105
106	make_wall(maze,tx-1,ty,0); /* make a horizontal wall with a door */
107
108	/* walk down until we find the bottom-left corner */
109	while(((ty+1) < ysize) && maze[tx][ty+1] ) ty++;
110
111	make_wall(maze,tx,ty+1,1); /* make a vertical wall with a door */
112
113	/* walk rightuntil we find the bottom-right corner */
114	while(((tx + 1) < xsize) && maze[tx+1][ty]) tx++;
115
116	make_wall(maze,tx+1,ty,0); /* make a horizontal wall with a door */
117	tx++; /* set up for next layer. */
118	}
119
120	/* place the exits. */
121
122	if(RANDOM() %2) {
123	maze[cx][cy]='>';
124	maze[xsize-2][1]='<';
125	}
126	else {
127	maze[cx][cy]='<';
128	maze[xsize-2][1]='>';
129	}
130
131	return maze;
132	}
133
134
135