--- deliantra/server/random_maps/snake.C	2006/08/13 17:16:03	1.1
+++ deliantra/server/random_maps/snake.C	2011/04/23 04:56:53	1.15
@@ -1,7 +1,28 @@
-
+/*
+ * This file is part of Deliantra, the Roguelike Realtime MMORPG.
+ * 
+ * Copyright (©) 2005,2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
+ * Copyright (©) 1994-2004 Crossfire Development Team (restored, original file without copyright notice)
+ * 
+ * Deliantra is free software: you can redistribute it and/or modify it under
+ * the terms of the Affero GNU General Public License as published by the
+ * Free Software Foundation, either version 3 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 Affero GNU General Public License
+ * and the GNU General Public License along with this program. If not, see
+ * <http://www.gnu.org/licenses/>.
+ * 
+ * The authors can be reached via e-mail to <support@deliantra.net>
+ */
 
 /* peterm@langmuir.eecs.berkeley.edu:  this function generates a random
-snake-type layout.
+snake-type maze.
 
 input:  xsize, ysize;
 output:  a char** array with # and . for closed and open respectively.
@@ -11,85 +32,91 @@
 
 */
 
-
-#include <stdio.h>
 #include <global.h>
-#include <time.h>
-
-
-
+#include <rmg.h>
+#include "rproto.h"
 
-char **make_snake_layout(int xsize, int ysize,int options) {
-  int i,j;
+void
+make_snake_layout (layout &maze, int options)
+{
+  int i, j;
 
-  /* 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);
-  }
+  maze.clear ();
+  maze.border ();
 
-  /* write the outer walls */
-  for(i=0;i<xsize;i++) 
-    maze[i][0] = maze[i][ysize-1] = '#';
-  for(j=0;j<ysize;j++)
-    maze[0][j] = maze[xsize-1][j] = '#';
+  int xsize = maze.w;
+  int ysize = maze.h;
 
   /* Bail out if the size is too small to make a snake. */
-  if(xsize < 8 || ysize < 8) return maze;
+  if (xsize < 8 || ysize < 8)
+    return;
 
   /* decide snake orientation--vertical or horizontal , and
      make the walls and place the doors. */
 
-  if(RANDOM()%2) { /* vertical orientation */
-    int n_walls = RANDOM() % ((xsize - 5)/3) +1;
-    int spacing = xsize / (n_walls+1);
-    int orientation=1;
-    for(i=spacing;i<xsize-3;i+=spacing) {
-      if(orientation) {
-        for(j=1;j<ysize-2;j++) {
-          maze[i][j] = '#';
-        }
-        maze[i][j] = 'D';
-      }
-      else {
-       for(j=2;j<ysize;j++) {
-          maze[i][j] = '#';
+  if (rmg_rndm (2))
+    {                           /* vertical orientation */
+      int n_walls = rmg_rndm (xsize - 5) / 3 + 1;
+      int spacing = xsize / (n_walls + 1);
+      int orientation = 1;
+
+      for (i = spacing; i < xsize - 3; i += spacing)
+        {
+          if (orientation)
+            {
+              for (j = 1; j < ysize - 2; j++)
+                maze[i][j] = '#';
+
+              maze[i][j] = 'D';
+            }
+          else
+            {
+              for (j = 2; j < ysize; j++)
+                maze[i][j] = '#';
+
+              maze[i][1] = 'D';
+            }
+
+          orientation ^= 1;     /* toggle the value of orientation */
         }
-        maze[i][1] = 'D';
-      }
-      orientation ^= 1; /* toggle the value of orientation */
     }
-  }
-  else {  /* horizontal orientation */
-    int n_walls = RANDOM() % ((ysize - 5)/3) +1;
-    int spacing = ysize / (n_walls+1);
-    int orientation=1;
-    for(i=spacing;i<ysize-3;i+=spacing) {
-      if(orientation) {
-        for(j=1;j<xsize-2;j++) {
-          maze[j][i] = '#';
-        }
-        maze[j][i] = 'D';
-      }
-      else {
-       for(j=2;j<xsize;j++) {
-          maze[j][i] = '#';
+  else
+    {                           /* horizontal orientation */
+      int n_walls = rmg_rndm (ysize - 5) / 3 + 1;
+      int spacing = ysize / (n_walls + 1);
+      int orientation = 1;
+
+      for (i = spacing; i < ysize - 3; i += spacing)
+        {
+          if (orientation)
+            {
+              for (j = 1; j < xsize - 2; j++)
+                maze[j][i] = '#';
+
+              maze[j][i] = 'D';
+            }
+          else
+            {
+              for (j = 2; j < xsize; j++)
+                maze[j][i] = '#';
+
+              maze[1][i] = 'D';
+            }
+
+          orientation ^= 1;     /* toggle the value of orientation */
         }
-        maze[1][i] = 'D';
-      }
-      orientation ^= 1; /* toggle the value of orientation */
     }
-  }
-  
+
   /* place the exit up/down */
-  if(RANDOM() %2)
-    { maze[1][1] = '<'; maze[xsize-2][ysize-2]='>'; }
+  if (rmg_rndm (2))
+    {
+      maze[1][1] = '<';
+      maze[xsize - 2][ysize - 2] = '>';
+    }
   else
-    { maze[1][1] = '>'; maze[xsize-2][ysize-2]='<'; }
-    
-  
-  return maze;
+    {
+      maze[1][1] = '>';
+      maze[xsize - 2][ysize - 2] = '<';
+    }
 }
 
-
-