From a37f9b2c78e5b48917593c0c047fef7e3bb7f264 Mon Sep 17 00:00:00 2001
From: Jed Barber <jjbarber@y7mail.com>
Date: Wed, 2 Apr 2014 15:44:24 +1100
Subject: Added pits, finished init

---
 agent.prolog | 51 ++++++++++++++++++++++++---------------------------
 1 file changed, 24 insertions(+), 27 deletions(-)

diff --git a/agent.prolog b/agent.prolog
index fb49cde..2ff60eb 100644
--- a/agent.prolog
+++ b/agent.prolog
@@ -15,7 +15,10 @@ init :-
     initPits,
     initWumpus,
     initGold,
-    initBats, !.
+    initBats,
+    roomList(Rooms),
+    filter(Rooms, hazardAt, Walkable),
+    isConnected(Walkable) *-> !; init.
 
 
 initPos :-
@@ -26,7 +29,9 @@ initPos :-
     asserta(here(X)).
 
 
-initPits :- true.
+initPits :-
+    retractall(pitsAt(_)),
+    insert(5,pitsAt).
 
 
 initWumpus :-
@@ -40,38 +45,25 @@ initWumpus :-
 initGold :-
     retractall(goldAt(_)),
     retractall(haveGold(_)),
-    insertGold(3),
+    insert(3,goldAt),
     asserta(haveGold(0)).
 
 
-insertGold(N) :-
-    N > 0,
-    Nx is N - 1,
-    insertGold(Nx),
-    roomList(Rooms),
-    filter(Rooms, somethingAt, Emptyrooms),
-    random_member(X,Emptyrooms),
-    asserta(goldAt(X)).
-insertGold(0) :- true.
-
-
 initBats :-
     retractall(batsAt(_)),
-    insertBats(2).
+    insert(2,batsAt).
 
 
-insertBats(N) :-
+insert(N,Thing) :-
     N > 0,
     Nx is N - 1,
-    insertBats(Nx),
+    insert(Nx,Thing),
     roomList(Rooms),
     filter(Rooms, somethingAt, Emptyrooms),
     random_member(X,Emptyrooms),
-    asserta(batsAt(X)).
-insertBats(0) :- true.
-
-
-
+    P =.. [Thing,X],
+    asserta(P).
+insert(0,_) :- true.
 
 
 
@@ -249,10 +241,13 @@ lose(pit) :-
 % miscellaneous clauses
 
 somethingAt(X) :- current_predicate(here/1), here(X).
-somethingAt(X) :- current_predicate(wumpusAt/1), wumpusAt(X).
-somethingAt(X) :- current_predicate(pitAt/1), pitAt(X).
 somethingAt(X) :- current_predicate(goldAt/1), goldAt(X).
-somethingAt(X) :- current_predicate(batsAt/1), batsAt(X).
+somethingAt(X) :- hazardAt(X).
+
+
+hazardAt(X) :- current_predicate(wumpusAt/1), wumpusAt(X).
+hazardAt(X) :- current_predicate(pitAt/1), pitAt(X).
+hazardAt(X) :- current_predicate(batsAt/1), batsAt(X).
 
 
 intercalate([X|Y], Spacer, Result) :-
@@ -278,8 +273,10 @@ tail(X,[_|Y]) :- X = Y.
 
 
 isConnected([]) :- true.
-isConnected([_]) :- true.
-isConnected([X|Y]) :- connectTail([X],Y).
+isConnected(X) :-
+    head(Y,X),
+    tail(Z,X),
+    connectTail([Y],Z).
 
 connectTail(_,[]) :- true.
 connectTail([],_) :- false.
-- 
cgit