1 files changed, 20 insertions, 0 deletions
diff --git a/npc/functions/main.txt b/npc/functions/main.txt
index 4a6f89d80..f491c24fe 100644
--- a/npc/functions/main.txt
+++ b/npc/functions/main.txt
@@ -279,6 +279,26 @@ function	script	getmap	{
     return .@mapName$;
 }
 
+// isin( map, x1, y1, {[x2, y2][radius]} )
+function	script	isin	{
+    if (getmapxy(.@mapName$, .@xpos, .@ypos, 0) != 0)
+        return false;
+    if (.@mapName$ != getarg(0))
+        return false;
+
+    if (getarg(4,-1) < 0) {
+        // Radius Based
+        if (.@xpos >= getarg(1)-getarg(3) && .@xpos <= getarg(1)+getarg(3) && .@ypos >= getarg(2)-getarg(3) && .@ypos <= getarg(2)+getarg(3))
+            return true;
+    } else {
+        // Coordinate based
+        if (.@xpos >= getarg(1) && .@xpos <= getarg(3) && .@ypos >= getarg(2) && .@ypos <= getarg(4))
+            return true;
+    }
+    return false;
+}
+
+// isinrad( map, x1, y1, radius)
 function	script	isin	{
     if (getmapxy(.@mapName$, .@xpos, .@ypos, 0) != 0)
         return false;