server/random_maps/room_gen_spiral.c

/*
    CrossFire, A Multiplayer game for X-windows

    Copyright (C) 1994 Mark Wedel
    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 author can be reached via e-mail to mark@pyramid.com
*/


/*  The onion room generator:
Onion rooms are like this:

char **map_gen_spiral(int xsize, int ysize, int option);


*/
#include <global.h>
#include <random_map.h>

#define RANDOM_OPTIONS 0  /* Pick random options below */
#define REGULAR_SPIRAL 1  /* Regular spiral--distance increases constantly*/
#define FINE_SPIRAL 2     /* uses the min. separation:  most coiling */
#define FIT_SPIRAL 4      /* scale to a rectangular region, not square */
#define MAX_SPIRAL_OPT 8  /* this should be 2x the last real option */
#include <math.h>

int *free_x_list;
int *free_y_list;

#ifndef MIN
#define MIN(x,y) (((x)<(y))? (x):(y))
#endif
#ifndef MAX
#define MAX(x,y) (((x)<(y))? (y):(x))
#endif

#define MINDIST 3

#define MAX_FINE .454545

extern int surround_check(char **maze,int i, int j, int xsize, int ysize);

char **map_gen_spiral(int xsize, int ysize, int option) {
  int i,j;
  float parm=0;
  float x=0,y=0;
  int ic,jc;
  float SizeX,SizeY;
  float xscale,yscale;
  
  /* allocate that array, set it up */
  char **maze = (char **)calloc(sizeof(char*),xsize);
  for(i=0;i<xsize;i++) {
    maze[i] = (char *) calloc(sizeof(char),ysize);
  }

  /* slightly easier to fill and then cut */
  for(i=0;i<xsize;i++)  for(j=0;j<ysize;j++) maze[i][j] = '#';

  ic = xsize/2;
  jc = ysize/2;
  SizeX = xsize/2 - 2;
  SizeY = ysize/2 -2;

  /* select random options if necessary */
  if(option==0) {
    option=RANDOM()%MAX_SPIRAL_OPT;
  }

  /* the order in which these are evaluated matters*/

  /* the following two are mutually exclusive.  
     pick one if they're both set. */
  if((option & REGULAR_SPIRAL) && (option & FIT_SPIRAL))
    {
      /* unset REGULAR_SPIRAL half the time */
      if(RANDOM()%2 && (option & REGULAR_SPIRAL))
        option -= REGULAR_SPIRAL;
      else
        option -= FIT_SPIRAL;
    }

  xscale=yscale=MAX_FINE;  /* fine spiral */
  
  /* choose the spiral pitch */
  if(! (option & FINE_SPIRAL) ) {
    float pitch = (RANDOM() %5)/10. + 10./22.;
    xscale=yscale=pitch;
  }

  if((option & FIT_SPIRAL) &&  (xsize!=ysize) ) {
    if(xsize > ysize) xscale *= (float)xsize/(float)ysize;
    else yscale *= (float)ysize/(float)xsize;
  }

  if(option & REGULAR_SPIRAL) {
    float scale = MIN(xscale,yscale);
    xscale=yscale=scale;
  }

  /* cut out the spiral */
  while( (abs(x) < SizeX) && (abs(y) < SizeY) )
    {
      x = parm * cos(parm)*xscale;
      y = parm * sin(parm)*yscale;
      maze[(int)(ic + x )][(int)(jc + y )]='\0';
      parm+=0.01;
    };
  
maze[(int)(ic + x+0.5)][(int)(jc + y+0.5)]='<';


  /* cut out the center in a 2x2 and place the center and downexit */
  maze[ic][jc+1]='>';
  maze[ic][jc]='C';


  return maze;
}

/* the following function connects disjoint spirals which may
   result from the symmetrization process. */
void connect_spirals(int xsize,int ysize,int sym, char **layout) {

  int i,j,ic=xsize/2,jc=ysize/2;

  if(sym==X_SYM) {
    layout[ic][jc] = 0;
    /* go left from map center */
    for(i=ic-1,j=jc; i>0 && layout[i][j]=='#'  ;i--)
      layout[i][j]=0;
    /* go right */
    for(i=ic+1,j=jc; i<xsize-1 && layout[i][j]=='#'  ;i++)
      layout[i][j]=0;
  }

  if(sym==Y_SYM) {

    layout[ic][jc] = 0;
    /* go up */
    for(i=ic,j=jc-1; j>0 && layout[i][j]=='#'   ;j--)
      layout[i][j]=0;
    /* go down */  
    for(i=ic,j=jc+1; j<ysize-1 && layout[i][j]=='#'  ;j++)
      layout[i][j]=0;
  }

  if(sym==XY_SYM) {
    /* go left from map center */
    layout[ic][jc/2]=0;
    layout[ic/2][jc]=0;
    layout[ic][jc/2+jc]=0;
    layout[ic/2+ic][jc]=0;
    for(i=ic-1,j=jc/2; i>0 && layout[i][j]=='#'  ;i--) {
      layout[i][j + jc]=0;
      layout[i][j]=0;
    }
    /* go right */
    for(i=ic+1,j=jc/2; i<xsize-1 && layout[i][j]=='#'  ;i++) {
      layout[i][j+jc]=0;
      layout[i][j]=0;
    }
    /* go up */
    for(i=ic/2,j=jc-1; j>0 && layout[i][j]=='#'   ;j--) {
      layout[i][j]=0;
      layout[i+ic][j]=0;
    }
    /* go down */  
    for(i=ic/2,j=jc+1; j<ysize-1 && layout[i][j]=='#'  ;j++) {
      layout[i][j]=0;
      layout[i+ic][j]=0;
    }

  }

  /* get rid of bad doors. */
  for(i=0;i<xsize;i++)
    for(j=0;j<ysize;j++) {
      if(layout[i][j]=='D') {  /* remove bad door. */
        int si = surround_check(layout,i,j,xsize,ysize);
        if(si!=3 && si!=12) { 
          layout[i][j]=0;
          /* back up and recheck any nearby doors */
          i=0;j=0;
        }
      }
    }
         

}

Revision:	1.2
Committed:	Sun Aug 13 17:16:03 2006 UTC (17 years, 9 months ago) by elmex
Content type:	text/plain
Branch:	MAIN
CVS Tags:	HEAD
Changes since 1.1:	+0 -0 lines
State:	*FILE REMOVED*
Log Message:	Made server compile with C++. Removed cfanim plugin and crossedit. C++ here we come.
#	Content
1	/*
2	CrossFire, A Multiplayer game for X-windows
3
4	Copyright (C) 1994 Mark Wedel
5	Copyright (C) 1992 Frank Tore Johansen
6
7	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21	The author can be reached via e-mail to mark@pyramid.com
22	*/
23
24
25	/* The onion room generator:
26	Onion rooms are like this:
27
28	char **map_gen_spiral(int xsize, int ysize, int option);
29
30
31	*/
32	#include <global.h>
33	#include <random_map.h>
34
35	#define RANDOM_OPTIONS 0 /* Pick random options below */
36	#define REGULAR_SPIRAL 1 /* Regular spiral--distance increases constantly*/
37	#define FINE_SPIRAL 2 /* uses the min. separation: most coiling */
38	#define FIT_SPIRAL 4 /* scale to a rectangular region, not square */
39	#define MAX_SPIRAL_OPT 8 /* this should be 2x the last real option */
40	#include <math.h>
41
42	int *free_x_list;
43	int *free_y_list;
44
45	#ifndef MIN
46	#define MIN(x,y) (((x)<(y))? (x):(y))
47	#endif
48	#ifndef MAX
49	#define MAX(x,y) (((x)<(y))? (y):(x))
50	#endif
51
52	#define MINDIST 3
53
54	#define MAX_FINE .454545
55
56	extern int surround_check(char **maze,int i, int j, int xsize, int ysize);
57
58	char **map_gen_spiral(int xsize, int ysize, int option) {
59	int i,j;
60	float parm=0;
61	float x=0,y=0;
62	int ic,jc;
63	float SizeX,SizeY;
64	float xscale,yscale;
65
66	/* allocate that array, set it up */
67	char maze = (char )calloc(sizeof(char*),xsize);
68	for(i=0;i<xsize;i++) {
69	maze[i] = (char *) calloc(sizeof(char),ysize);
70	}
71
72	/* slightly easier to fill and then cut */
73	for(i=0;i<xsize;i++) for(j=0;j<ysize;j++) maze[i][j] = '#';
74
75	ic = xsize/2;
76	jc = ysize/2;
77	SizeX = xsize/2 - 2;
78	SizeY = ysize/2 -2;
79
80	/* select random options if necessary */
81	if(option==0) {
82	option=RANDOM()%MAX_SPIRAL_OPT;
83	}
84
85	/* the order in which these are evaluated matters*/
86
87	/* the following two are mutually exclusive.
88	pick one if they're both set. */
89	if((option & REGULAR_SPIRAL) && (option & FIT_SPIRAL))
90	{
91	/* unset REGULAR_SPIRAL half the time */
92	if(RANDOM()%2 && (option & REGULAR_SPIRAL))
93	option -= REGULAR_SPIRAL;
94	else
95	option -= FIT_SPIRAL;
96	}
97
98	xscale=yscale=MAX_FINE; /* fine spiral */
99
100	/* choose the spiral pitch */
101	if(! (option & FINE_SPIRAL) ) {
102	float pitch = (RANDOM() %5)/10. + 10./22.;
103	xscale=yscale=pitch;
104	}
105
106	if((option & FIT_SPIRAL) && (xsize!=ysize) ) {
107	if(xsize > ysize) xscale *= (float)xsize/(float)ysize;
108	else yscale *= (float)ysize/(float)xsize;
109	}
110
111	if(option & REGULAR_SPIRAL) {
112	float scale = MIN(xscale,yscale);
113	xscale=yscale=scale;
114	}
115
116	/* cut out the spiral */
117	while( (abs(x) < SizeX) && (abs(y) < SizeY) )
118	{
119	x = parm * cos(parm)*xscale;
120	y = parm * sin(parm)*yscale;
121	maze[(int)(ic + x )][(int)(jc + y )]='\0';
122	parm+=0.01;
123	};
124
125	maze[(int)(ic + x+0.5)][(int)(jc + y+0.5)]='<';
126
127
128	/* cut out the center in a 2x2 and place the center and downexit */
129	maze[ic][jc+1]='>';
130	maze[ic][jc]='C';
131
132
133	return maze;
134	}
135
136	/* the following function connects disjoint spirals which may
137	result from the symmetrization process. */
138	void connect_spirals(int xsize,int ysize,int sym, char **layout) {
139
140	int i,j,ic=xsize/2,jc=ysize/2;
141
142	if(sym==X_SYM) {
143	layout[ic][jc] = 0;
144	/* go left from map center */
145	for(i=ic-1,j=jc; i>0 && layout[i][j]=='#' ;i--)
146	layout[i][j]=0;
147	/* go right */
148	for(i=ic+1,j=jc; i<xsize-1 && layout[i][j]=='#' ;i++)
149	layout[i][j]=0;
150	}
151
152	if(sym==Y_SYM) {
153
154	layout[ic][jc] = 0;
155	/* go up */
156	for(i=ic,j=jc-1; j>0 && layout[i][j]=='#' ;j--)
157	layout[i][j]=0;
158	/* go down */
159	for(i=ic,j=jc+1; j<ysize-1 && layout[i][j]=='#' ;j++)
160	layout[i][j]=0;
161	}
162
163	if(sym==XY_SYM) {
164	/* go left from map center */
165	layout[ic][jc/2]=0;
166	layout[ic/2][jc]=0;
167	layout[ic][jc/2+jc]=0;
168	layout[ic/2+ic][jc]=0;
169	for(i=ic-1,j=jc/2; i>0 && layout[i][j]=='#' ;i--) {
170	layout[i][j + jc]=0;
171	layout[i][j]=0;
172	}
173	/* go right */
174	for(i=ic+1,j=jc/2; i<xsize-1 && layout[i][j]=='#' ;i++) {
175	layout[i][j+jc]=0;
176	layout[i][j]=0;
177	}
178	/* go up */
179	for(i=ic/2,j=jc-1; j>0 && layout[i][j]=='#' ;j--) {
180	layout[i][j]=0;
181	layout[i+ic][j]=0;
182	}
183	/* go down */
184	for(i=ic/2,j=jc+1; j<ysize-1 && layout[i][j]=='#' ;j++) {
185	layout[i][j]=0;
186	layout[i+ic][j]=0;
187	}
188
189	}
190
191	/* get rid of bad doors. */
192	for(i=0;i<xsize;i++)
193	for(j=0;j<ysize;j++) {
194	if(layout[i][j]=='D') { /* remove bad door. */
195	int si = surround_check(layout,i,j,xsize,ysize);
196	if(si!=3 && si!=12) {
197	layout[i][j]=0;
198	/* back up and recheck any nearby doors */
199	i=0;j=0;
200	}
201	}
202	}
203
204
205
206	}
207