--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/srogue/new_leve.c	Thu Nov 25 12:21:41 2010 +0000
@@ -0,0 +1,253 @@
+/*
+ * Do anything associated with a new dungeon level
+ *
+ * @(#)new_level.c	9.0	(rdk)	 7/17/84
+ *
+ * Super-Rogue
+ * Copyright (C) 1984 Robert D. Kindelberger
+ * All rights reserved.
+ *
+ * Based on "Rogue: Exploring the Dungeons of Doom"
+ * Copyright (C) 1980, 1981 Michael Toy, Ken Arnold and Glenn Wichman
+ * All rights reserved.
+ *
+ * See the file LICENSE.TXT for full copyright and licensing information.
+ */
+
+#include "rogue.h"
+#include "rogue.ext"
+
+/*
+ * new_level:
+ *	Dig and draw a new level 
+ */
+new_level(ltype)
+int ltype;
+{
+	register i;
+	register char ch;
+	struct coord traploc;
+	struct room *rp;
+
+	if (level > max_level)
+		max_level = level;
+
+	wclear(cw);
+	wclear(mw);
+	clear();
+
+	isfight = FALSE;
+	levtype = ltype;
+
+	free_list(mlist);			/* free monster list */
+
+	if (levtype == POSTLEV)
+		do_post();
+	else {
+		lev_mon();			/* fill in monster list */
+
+		if (levtype == MAZELEV)
+			do_maze();
+		else {				/* normal levels */
+			do_rooms();		/* Draw rooms */
+			do_passages();		/* Draw passages */
+		}
+		no_food++;
+		put_things();			/* Place objects (if any) */
+	}
+	/*
+	 * Place the staircase down.
+	 */
+	stairs = *rnd_pos(&rooms[rnd_room()]);
+	mvaddch(stairs.y, stairs.x, STAIRS);
+	ntraps = 0;
+
+	if (levtype == NORMLEV)
+	{
+		struct trap *trp, *maxtrp;
+
+		/* Place the traps for normal levels only */
+
+		if (rnd(10) < level)
+		{
+			ntraps = rnd(level / 4) + 1;
+
+			if (ntraps > MAXTRAPS)
+				ntraps = MAXTRAPS;
+
+			maxtrp = &traps[ntraps];
+			for (trp = &traps[0]; trp < maxtrp; trp++)
+			{
+again:
+				switch(rnd(TYPETRAPS + 1))
+				{
+					case 0:
+						if (rnd(100) > 25)
+							goto again;
+						else
+							ch = POST;
+
+					when 1: ch = TRAPDOOR;
+					when 2: ch = BEARTRAP;
+					when 3: ch = SLEEPTRAP;
+					when 4: ch = ARROWTRAP;
+					when 5: ch = TELTRAP;
+					when 6: ch = DARTTRAP;
+					when 7: ch = MAZETRAP;
+					when 8:
+					case 9:
+						if (rnd(100) > 80)
+							goto again;
+						else
+							ch = POOL;
+				}
+				trp->tr_flags = 0;
+				traploc = *rnd_pos(&rooms[rnd_room()]);
+				mvaddch(traploc.y,traploc.x,ch);
+				trp->tr_type = ch;
+				trp->tr_pos = traploc;
+
+				if (ch == POOL || ch == POST)
+					trp->tr_flags |= ISFOUND;
+
+				if (ch==TELTRAP && rnd(100)<20 && trp<maxtrp-1)
+				{
+					struct coord newloc;
+
+					newloc = *rnd_pos(&rooms[rnd_room()]);
+					trp->tr_goto = newloc;
+					trp++;
+					trp->tr_goto = traploc;
+					trp->tr_type = TELTRAP;
+					trp->tr_pos = newloc;
+					mvaddch(newloc.y, newloc.x, TELTRAP);
+				}
+				else
+					trp->tr_goto = rndspot;
+			}
+		}
+	}
+	do
+	{
+		rp = &rooms[rnd_room()];
+		hero = *rnd_pos(rp);
+	} while(levtype==MAZELEV&&DISTANCE(hero.y,hero.x,stairs.y,stairs.x)<10);
+
+	player.t_room = rp;
+	player.t_oldch = mvinch(hero.y, hero.x);
+	light(&hero);
+	mvwaddch(cw,hero.y,hero.x,PLAYER);
+	nochange = FALSE;
+}
+
+
+/*
+ * rnd_room:
+ *	Pick a room that is really there
+ */
+rnd_room()
+{
+	register rm;
+
+	if (levtype != NORMLEV)
+		rm = 0;
+	else
+	{
+		do {
+			rm = rnd(MAXROOMS);
+		} while (rf_on(&rooms[rm],ISGONE));
+	}
+	return rm;
+}
+
+
+/*
+ * put_things:
+ *	put potions and scrolls on this level
+ */
+
+put_things()
+{
+	register i, cnt, rm;
+	struct linked_list *item;
+	struct object *cur;
+	struct coord tp;
+
+	/* Throw away stuff left on the previous level (if anything) */
+
+	free_list(lvl_obj);
+
+	/* The only way to get new stuff is to go down into the dungeon. */
+
+	if (goingup())
+		return;
+
+	/* Do MAXOBJ attempts to put things on a level */
+
+	for (i = 0; i < MAXOBJ; i++)
+	{
+		if (rnd(100) < 40)
+		{
+			item = new_thing(FALSE, ANYTHING);
+			attach(lvl_obj, item);
+			cur = OBJPTR(item);
+			cnt = 0;
+			do {
+				/* skip treasure rooms */
+				rm = rnd_room();
+				if (++cnt > 500)
+					break;
+			} while(rf_on(&rooms[rm],ISTREAS) && levtype!=MAZELEV);
+
+			tp = *rnd_pos(&rooms[rm]);
+			mvaddch(tp.y, tp.x, cur->o_type);
+			cur->o_pos = tp;
+		}
+	}
+	/*
+	 * If he is really deep in the dungeon and he hasn't found the
+	 * amulet yet, put it somewhere on the ground
+	 */
+	if (level >= AMLEVEL && !amulet && rnd(100) < 70)
+	{
+		item = new_thing(FALSE, AMULET, 0);
+		attach(lvl_obj, item);
+		cur = OBJPTR(item);
+		rm = rnd_room();
+		tp = *rnd_pos(&rooms[rm]);
+		mvaddch(tp.y, tp.x, cur->o_type);
+		cur->o_pos = tp;
+	}
+
+	for (i = 0; i < MAXROOMS; i++)		/* loop through all */
+	{
+		if (rf_on(&rooms[i],ISTREAS))	/* treasure rooms */
+		{
+			int numthgs, isfood;
+
+			numthgs = rnd(level / 3) + 6;
+			while (numthgs-- >= 0)
+			{
+				isfood = TRUE;
+				do {
+					item = new_thing(TRUE, ANYTHING);
+					cur = OBJPTR(item);
+
+					/* dont create food for */
+					if (cur->o_type == FOOD)
+						discard(item);
+
+					/* treasure rooms */
+					else
+						isfood = FALSE;
+
+				} while (isfood);
+
+				attach(lvl_obj, item);
+				tp = *rnd_pos(&rooms[i]);
+				mvaddch(tp.y, tp.x, cur->o_type);
+				cur->o_pos = tp;
+			}
+		}
+	}
+}