--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/arogue5/outside.c	Thu Aug 09 22:58:48 2012 +0000
@@ -0,0 +1,210 @@
+/*
+ * functions for dealing with the "outside" level
+ *
+ * Advanced Rogue
+ * Copyright (C) 1984, 1985 Michael Morgan, Ken Dalka and AT&T
+ * All rights reserved.
+ *
+ * See the file LICENSE.TXT for full copyright and licensing information.
+ */
+
+#include "curses.h"
+#include "rogue.h"
+
+extern char rnd_terrain(), get_terrain();
+
+/*
+ * init_terrain:
+ *	Get the single "outside room" set up correctly
+ */
+
+void
+init_terrain()
+{
+    register struct room *rp;
+
+    for (rp = rooms; rp < &rooms[MAXROOMS]; rp++) {
+	    rp->r_flags = ISGONE;	/* kill all rooms */
+	    rp->r_fires = NULL;		/* no fires */
+    }
+    rp = &rooms[0];			/* point to only room */
+    rp->r_flags = ISDARK;		/* outside is always dark */
+    rp->r_pos.x = 0;			/* room fills whole screen */
+    rp->r_pos.y = 1;
+    rp->r_max.x = COLS;
+    rp->r_max.y = LINES - 3;
+}
+
+
+
+void
+do_terrain(basey, basex, deltay, deltax, fresh)
+int basey, basex, deltay, deltax;
+bool fresh;
+{
+    register cury, curx;	/* Current y and x positions */
+
+    /* Lay out the boundary */
+    for (cury=1; cury<LINES-2; cury++) {	/* Vertical "walls" */
+	mvaddch(cury, 0, '|');
+	mvaddch(cury, COLS-1, '|');
+    }
+    for (curx=0; curx<COLS; curx++) {		/* Horizontal "walls" */
+	mvaddch(1, curx, '-');
+	mvaddch(LINES-3, curx, '-');
+    }
+
+    /* If we are not continuing, let's start out with a line of terrain */
+    if (fresh) {
+	char ch;	/* Next char to add */
+
+	/* Move to the starting point (should be (1, 0)) */
+	move(basey, basex);
+	curx = basex;
+
+	/* Start with some random terrain */
+	if (basex == 0) {
+	    ch = rnd_terrain();
+	    addch(ch);
+	}
+	else ch = CCHAR( mvinch(basey, basex) );
+
+	curx += deltax;
+
+	/* Fill in the rest of the line */
+	while (curx > 0 && curx < COLS-1) {
+	    /* Put in the next piece */
+	    ch = get_terrain(ch, '\0', '\0', '\0');
+	    mvaddch(basey, curx, ch);
+	    curx += deltax;
+	}
+
+	basey++;	/* Advance to next line */
+    }
+
+    /* Fill in the rest of the lines */
+    cury = basey;
+    while (cury > 1 && cury < LINES - 3) {
+	curx = basex;
+	while (curx > 0 && curx < COLS-1) {
+	    register char left, top_left, top, top_right;
+	    register int left_pos, top_pos;
+
+	    /* Get the surrounding terrain */
+	    left_pos = curx - deltax;
+	    top_pos = cury - deltay;
+
+	    left = CCHAR( mvinch(cury, left_pos) );
+	    top_left = CCHAR( mvinch(top_pos, left_pos) );
+	    top = CCHAR( mvinch(top_pos, curx) );
+	    top_right = CCHAR( mvinch(top_pos, curx + deltax) );
+
+	    /* Put the piece of terrain on the map */
+	    mvaddch(cury, curx, get_terrain(left, top_left, top, top_right));
+
+	    /* Get the next x coordinate */
+	    curx += deltax;
+	}
+
+	/* Get the next y coordinate */
+	cury += deltay;
+    }
+    genmonsters(5, (bool) 0);
+}
+
+
+/*
+ * do_paths:
+ *	draw at least a single path-way through the terrain
+ */
+
+
+/*
+ * rnd_terrain:
+ *	return a weighted, random type of outside terrain
+ */
+
+char
+rnd_terrain()
+{
+    int chance = rnd(100);
+
+    /* Forest is most likely */
+    if (chance < 60) return(FOREST);
+
+    /* Next comes meadow */
+    if (chance < 90) return(FLOOR);
+
+    /* Then comes lakes */
+    if (chance < 97) return(POOL);
+
+    /* Finally, mountains */
+    return(WALL);
+}
+
+
+/*
+ * get_terrain:
+ *	return a terrain weighted by what is surrounding
+ */
+
+char
+get_terrain(one, two, three, four)
+char one, two, three, four;
+{
+    register int i;
+    int forest = 0, mountain = 0, lake = 0, meadow = 0, total = 0;
+    char surrounding[4];
+
+    surrounding[0] = one;
+    surrounding[1] = two;
+    surrounding[2] = three;
+    surrounding[3] = four;
+
+    for (i=0; i<4; i++) 
+	switch (surrounding[i]) {
+	    case FOREST:
+		forest++;
+		total++;
+	    
+	    when WALL:
+		mountain++;
+		total++;
+
+	    when POOL:
+		lake++;
+		total++;
+
+	    when FLOOR:
+		meadow++;
+		total++;
+	}
+
+    /* Should we continue mountain? */
+    if (rnd(total+1) < mountain) return(WALL);
+
+    /* Should we continue lakes? */
+    if (rnd(total+1) < lake) return(POOL);
+
+    /* Should we continue meadow? */
+    if (rnd(total+1) < meadow) return(FLOOR);
+
+    /* Should we continue forest? */
+    if (rnd(total+2) < forest) return(FOREST);
+
+    /* Return something random */
+    return(rnd_terrain());
+}
+
+
+/*
+ * lake_check:
+ *	Determine if the player would drown
+ */
+
+void
+lake_check(place)
+coord *place;
+{
+    NOOP(place);
+}