Add compareandsetq function, it compares a given quest variable's value with the current one, if both vals are equals, it sets the variable with a new value.

1 files changed, 13 insertions, 0 deletions

diff --git a/npc/functions/main.txt b/npc/functions/main.txt
index f2dad770..420f2b79 100644
--- a/npc/functions/main.txt
+++ b/npc/functions/main.txt
@@ -172,3 +172,16 @@ function	script	askyesno	{
     return select (menuaction(l("Yes")),
         menuaction(l("No")));
 }
+
+// Argument:
+//  0 Quest variable
+//  1 Current value
+//  2 Next value
+function	script	compareandsetq	{
+    if (getq (getarg(0)) == getarg(1))
+    {
+        setq getarg(0), getarg(2);
+        return true;
+    }
+    return false;
+}