Spellcasting element

2020-03-11 16:23:30 +01:00
parent 9a42101b68
commit d31075eb54
50 changed files with 254 additions and 220 deletions
@@ -0,0 +1,31 @@
+/datum/element/spellcasting //allows to cast certain spells or skip requirements.
+	element_flags = ELEMENT_BESPOKE|ELEMENT_DETACH
+	id_arg_index = 2
+	var/cast_flags
+	var/cast_slots
+
+/datum/element/spellcasting/Attach(datum/target, _flags, _slots)
+	. = ..()
+	if(isitem(target))
+		RegisterSignal(target, COMSIG_ITEM_EQUIPPED, .proc/on_equip)
+		RegisterSignal(target, COMSIG_ITEM_DROPPED, .proc/on_drop)
+	else if(ismob(target))
+		RegisterSignal(target, COMSIG_MOB_SPELL_CAST_CHECK, .proc/on_cast)
+	else
+		return ELEMENT_INCOMPATIBLE
+	cast_flags = _flags
+	cast_slots = _slots
+
+/datum/element/spellcasting/Detach(datum/target)
+	. = ..()
+	UnregisterSignal(target, list(COMSIG_ITEM_EQUIPPED, COMSIG_ITEM_DROPPED, COMSIG_MOB_SPELL_CAST_CHECK))
+
+/datum/element/spellcasting/proc/on_equip(datum/source, mob/equipper, slot)
+	if(slot in cast_slots)
+		RegisterSignal(equipper, COMSIG_MOB_SPELL_CAST_CHECK, .proc/on_cast)
+
+/datum/element/spellcasting/proc/on_drop(datum/source, mob/user)
+	UnregisterSignal(user, COMSIG_MOB_SPELL_CAST_CHECK)
+
+/datum/element/spellcasting/proc/on_cast(mob/caster, obj/effect/proc_holder/spell)
+	return cast_flags