--- a/inference.pl	Fri Oct 10 05:15:40 2008 +0800
+++ b/inference.pl	Fri Oct 10 05:24:04 2008 +0800
@@ -47,12 +47,25 @@
 
     # 城鎮跟圍牆
     if($cities->{$cityId}->{buildings}->{wall} < $cities->{$cityId}->{buildings}->{townHall}) {
-        Warn($cityId, sprintf("Wall level (%d) is lower then twon hall (%d)!",
+        Warn($cityId, sprintf("Wall level (%d) is lower then town hall (%d)!",
                 $cities->{$cityId}->{buildings}->{wall},
                 $cities->{$cityId}->{buildings}->{townHall}
             ));
     }
+}
 
+sub rule_space
+{
+    my $cityId = shift;
+
+    if($cities->{$cityId}->{space}->{total} == $cities->{$cityId}->{space}->{occupied})
+    {
+        Warn($cityId, sprintf("your space is full, upgraded the hall")) if($cities->{$cityId}->{construction} != 1)
+    }
+}
+
+sub rule_engagement
+{
 }
 
 # 貪腐
@@ -67,7 +80,7 @@
 
 # space
 # Checking rules
-foreach my $procedure (qw/rule_happiness rule_corruption rule_building rule_resource/) {
+foreach my $procedure (qw/rule_happiness rule_corruption rule_building rule_space rule_resource/) {
     foreach my $id (keys(%$cities)) {
         eval(sprintf("%s(%s);", $procedure, $id));
     }