Preds now show up on the predship tacmap (#4080)

# About the pull request
Now makes preds (and thralls) show up on their (and only their) tacmaps.

Additionally, anyone wearing a stolen bracer (since that's what the
tracker is based from) has a custom icon on the tacmap.

# Explain why it's good for the game
Well, it makes sense that preds should be able to see each other on
their tacmap. Not sure if this was intended when preds got their tacmap,
but it's here now.

# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog
:cl:
add: Predators and thralls are now visible on the predship tacmap.
add: Anyone wearing a stolen predator bracer is now visible on the
predship tacmap.
/:cl:

---------

Co-authored-by: John Doe <[email protected]>

code/__DEFINES/minimap.dm

@@ -4,7 +4,8 @@
 #define MINIMAP_FLAG_PMC (1<<2)
 #define MINIMAP_FLAG_UPP (1<<3)
 #define MINIMAP_FLAG_CLF (1<<4)
-#define MINIMAP_FLAG_ALL (1<<5) - 1
+#define MINIMAP_FLAG_YAUTJA (1<<5)
+#define MINIMAP_FLAG_ALL (1<<6) - 1
 
 ///Converts the overworld x and y to minimap x and y values
 #define MINIMAP_SCALE 2

code/modules/cm_preds/yaut_bracers.dm

@@ -46,6 +46,8 @@
 	var/mob/living/carbon/human/owner //Pred spawned on, or thrall given to.
 	var/obj/item/clothing/gloves/yautja/linked_bracer //Bracer linked to this one (thrall or mentor).
 	COOLDOWN_DECLARE(bracer_recharge)
+	/// What minimap icon this bracer should have
+	var/minimap_icon = "predator"
 
 /obj/item/clothing/gloves/yautja/equipped(mob/user, slot)
 	. = ..()
@@ -54,6 +56,8 @@
 		if(!owner)
 			owner = user
 		toggle_lock_internal(user, TRUE)
+		RegisterSignal(user, list(COMSIG_MOB_STAT_SET_ALIVE, COMSIG_MOB_DEATH), PROC_REF(update_minimap_icon))
+		INVOKE_NEXT_TICK(src, PROC_REF(update_minimap_icon), user)
 
 /obj/item/clothing/gloves/yautja/Destroy()
 	STOP_PROCESSING(SSobj, src)
@@ -65,6 +69,8 @@
 /obj/item/clothing/gloves/yautja/dropped(mob/user)
 	STOP_PROCESSING(SSobj, src)
 	flags_item = initial(flags_item)
+	UnregisterSignal(user, list(COMSIG_MOB_STAT_SET_ALIVE, COMSIG_MOB_DEATH))
+	SSminimaps.remove_marker(user)
 	..()
 
 /obj/item/clothing/gloves/yautja/pickup(mob/living/user)
@@ -102,6 +108,27 @@
 /obj/item/clothing/gloves/yautja/proc/decloak()
 	return
 
+/// Called to update the minimap icon of the predator
+/obj/item/clothing/gloves/yautja/proc/update_minimap_icon()
+	if(!ishuman(owner))
+		return
+
+	var/mob/living/carbon/human/human_owner = owner
+	var/turf/wearer_turf = get_turf(owner)
+	SSminimaps.remove_marker(owner)
+	if(!isyautja(owner))
+		if(owner.stat >= DEAD)
+			if(human_owner.undefibbable)
+				SSminimaps.add_marker(owner, wearer_turf.z, MINIMAP_FLAG_YAUTJA, "bracer_stolen", 'icons/ui_icons/map_blips.dmi', overlay_iconstates = list("undefibbable"))
+			else
+				SSminimaps.add_marker(owner, wearer_turf.z, MINIMAP_FLAG_YAUTJA, "bracer_stolen", 'icons/ui_icons/map_blips.dmi', overlay_iconstates = list("defibbable"))
+		else
+			SSminimaps.add_marker(owner, wearer_turf.z, MINIMAP_FLAG_YAUTJA, "bracer_stolen", 'icons/ui_icons/map_blips.dmi')
+	else
+		if(owner?.stat >= DEAD)
+			SSminimaps.add_marker(owner, wearer_turf.z, MINIMAP_FLAG_YAUTJA, minimap_icon, 'icons/ui_icons/map_blips.dmi', overlay_iconstates = list("undefibbable")) //defib/undefib status doesn't really matter because they're gonna explode in the end regardless
+		else
+			SSminimaps.add_marker(owner, wearer_turf.z, MINIMAP_FLAG_YAUTJA, minimap_icon, 'icons/ui_icons/map_blips.dmi')
 /*
 *This is the main proc for checking AND draining the bracer energy. It must have human passed as an argument.
 *It can take a negative value in amount to restore energy.
@@ -193,8 +220,23 @@
 	desc = "A pair of strange alien bracers, adapted for human biology."
 
 	color = "#b85440"
+	minimap_icon = "thrall"
 
 
+/obj/item/clothing/gloves/yautja/thrall/update_minimap_icon()
+	if(!ishuman(owner))
+		return
+
+	var/mob/living/carbon/human/human_owner = owner
+	var/turf/wearer_turf = get_turf(owner)
+	if(owner.stat >= DEAD)
+		if(human_owner.undefibbable)
+			SSminimaps.add_marker(owner, wearer_turf.z, MINIMAP_FLAG_YAUTJA, minimap_icon, overlay_iconstates = list("undefibbable"))
+		else
+			SSminimaps.add_marker(owner, wearer_turf.z, MINIMAP_FLAG_YAUTJA, minimap_icon, overlay_iconstates = list("defibbable"))
+	else
+		SSminimaps.add_marker(owner, wearer_turf.z, MINIMAP_FLAG_YAUTJA, minimap_icon)
+
 /obj/item/clothing/gloves/yautja/hunter
 	name = "clan bracers"
 	desc = "An extremely complex, yet simple-to-operate set of armored bracers worn by the Yautja. It has many functions, activate them to use some."