Post: #1

What is the function for the weapons make self-repair?

Post: #2

In ITEMDEF, TYPE or EVENT.

ON=@Damage
IF (<SelfRepair>)
RETURN 1
ENDIF

Post: #3

SELFREPAIR is an item property, not an function

if you set SELFREPAIR=x on the item, it will automatically enable self repair behavior

everytime the item get damaged, it will have a chance of x/10 to get repaired (+1 durability) instead get damaged (-1 durability). You can control this chance directly on the property using SELFREPAIR=1 up to SELFREPAIR=10