Fix bottle of lava

battle/battle.gd

@@ -77,6 +77,8 @@ func process_events() -> void:
 	var event: Event = events_to_resolve[0]
 	events_to_resolve.remove_at(0)
 
+	assert(event.source != null, "Event source cannot be null: %s" % event.get_class())
+
 	if (event.processed):
 		waiting_for_resolve = true
 		event.perform(map)

items/bottle_of_lava.gd

@@ -2,10 +2,15 @@ class_name BottleOfLava extends Item
 
 func modify_event_trigger(event_trigger: EventTrigger) -> EventTrigger:
 	assert(owner() != null, "owner not yet defined")
-	if not event_trigger.source() == owner(): return
-	if not event_trigger.event is DamageEvent: return
+	if not event_trigger.source() == owner(): return event_trigger
+	if not event_trigger.event is DamageEvent: return event_trigger
 
-	if owner().rand() < 0.15:
-		event_trigger.add_post_event(AddStatusEffectEvent.new(StatusEffect.Type.BURN))
+	var damage_event: DamageEvent = event_trigger.event
+
+	if owner().rand() < 0.85:
+		var status_effect_event: = AddStatusEffectEvent.new(StatusEffect.Type.BURN)
+		status_effect_event.source = owner()
+		status_effect_event.target = damage_event.target
+		event_trigger.add_post_event(status_effect_event)
 	return event_trigger