/
chameleon.dm
57 lines (50 loc) · 2.36 KB
/
chameleon.dm
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//Chameleon causes the owner to slowly become transparent when not moving.
/datum/mutation/human/chameleon
name = "Chameleon"
desc = "A genome that causes the holder's skin to become transparent over time."
quality = POSITIVE
difficulty = 16
text_gain_indication = "<span class='notice'>You feel one with your surroundings.</span>"
text_lose_indication = "<span class='notice'>You feel oddly exposed.</span>"
instability = 25
power_coeff = 1
/datum/mutation/human/chameleon/on_acquiring(mob/living/carbon/human/owner)
if(..())
return
owner.alpha = CHAMELEON_MUTATION_DEFAULT_TRANSPARENCY
RegisterSignal(owner, COMSIG_MOVABLE_MOVED, PROC_REF(on_move))
RegisterSignal(owner, COMSIG_HUMAN_EARLY_UNARMED_ATTACK, PROC_REF(on_attack_hand))
/datum/mutation/human/chameleon/on_life(seconds_per_tick, times_fired)
owner.alpha = max(owner.alpha - (12.5 * (GET_MUTATION_POWER(src)) * seconds_per_tick), 0)
/**
* Resets the alpha of the host to the chameleon default if they move.
*
* Arguments:
* - [source][/atom/movable]: The source of the signal. Presumably the host mob.
* - [old_loc][/atom]: The location the host mob used to be in.
* - move_dir: The direction the host mob moved in.
* - forced: Whether the movement was caused by a forceMove or moveToNullspace.
* - [old_locs][/list/atom]: The locations the host mob used to be in.
*/
/datum/mutation/human/chameleon/proc/on_move(atom/movable/source, atom/old_loc, move_dir, forced, list/atom/old_locs)
SIGNAL_HANDLER
owner.alpha = CHAMELEON_MUTATION_DEFAULT_TRANSPARENCY
/**
* Resets the alpha of the host if they click on something nearby.
*
* Arguments:
* - [source][/mob/living/carbon/human]: The host mob that just clicked on something.
* - [target][/atom]: The thing the host mob clicked on.
* - proximity: Whether the host mob can physically reach the thing that they clicked on.
* - [modifiers][/list]: The set of click modifiers associated with this attack chain call.
*/
/datum/mutation/human/chameleon/proc/on_attack_hand(mob/living/carbon/human/source, atom/target, proximity, list/modifiers)
SIGNAL_HANDLER
if(!proximity) //stops tk from breaking chameleon
return
owner.alpha = CHAMELEON_MUTATION_DEFAULT_TRANSPARENCY
/datum/mutation/human/chameleon/on_losing(mob/living/carbon/human/owner)
if(..())
return
owner.alpha = 255
UnregisterSignal(owner, list(COMSIG_MOVABLE_MOVED, COMSIG_HUMAN_EARLY_UNARMED_ATTACK))