Updated Perl EVENT_WAYPOINT_ARRIVE (markdown)

Perl-EVENT_WAYPOINT_ARRIVE.md

@@ -10,4 +10,23 @@ sub EVENT_WAYPOINT_ARRIVE {
 }
 ```
 
+### Functionality Explained
+
+EVENT_WAYPOINT_ARRIVE is triggered when an NPC reaches a grid waypoint entry.
+
+### EVENT_WAYPOINT_ARRIVE in use
+
+```perl
+# This example would cause your NPC to speak once it reaches a particular waypoint. 
+# Don't forget to count waypoint 0 (the spawn point)
+
+sub EVENT_WAYPOINT_ARRIVE {
+
+     # Use == for numeric comparison to match grid waypoint entry "11" 
+     if ($wp == 11) {
+          quest::say("Wow, that was a long walk!");
+     }
+}
+```
+
 Generated On 2018-01-15T22:07:30-08:00