Merge pull request #13081 from Putnam3145/ethereals

Ports ethereals from TG

code/__DEFINES/dcs/signals.dm

@@ -209,6 +209,8 @@
 #define COMSIG_MOB_SWAP_HANDS "mob_swap_hands"					//from base of mob/swap_hand(): (obj/item)
 	#define COMPONENT_BLOCK_SWAP 1
 
+#define COMSIG_PROCESS_BORGCHARGER_OCCUPANT "living_charge"
+
 // /client signals
 #define COMSIG_MOB_CLIENT_LOGIN "mob_client_login"					//sent when a mob/login() finishes: (client)
 #define COMSIG_MOB_CLIENT_LOGOUT "mob_client_logout"				//sent when a mob/logout() starts: (client)

code/__DEFINES/is_helpers.dm

@@ -74,6 +74,7 @@ GLOBAL_LIST_INIT(turfs_without_ground, typecacheof(list(
 #define ismush(A) (is_species(A, /datum/species/mush))
 #define isshadow(A) (is_species(A, /datum/species/shadow))
 #define isskeleton(A) (is_species(A, /datum/species/skeleton))
+#define isethereal(A) (is_species(A, /datum/species/ethereal))
 
 // Citadel specific species
 #define isipcperson(A) (is_species(A, /datum/species/ipc))

code/__DEFINES/mobs.dm

@@ -176,6 +176,15 @@
 #define DISGUST_LEVEL_VERYGROSS 50
 #define DISGUST_LEVEL_GROSS 25
 
+//Charge levels for Ethereals
+#define ETHEREAL_CHARGE_NONE 0
+#define ETHEREAL_CHARGE_LOWPOWER 20
+#define ETHEREAL_CHARGE_NORMAL 50
+#define ETHEREAL_CHARGE_ALMOSTFULL 75
+#define ETHEREAL_CHARGE_FULL 100
+#define ETHEREAL_CHARGE_OVERLOAD 125
+#define ETHEREAL_CHARGE_DANGEROUS 150
+
 //Slime evolution threshold. Controls how fast slimes can split/grow
 #define SLIME_EVOLUTION_THRESHOLD 10
 
@@ -284,6 +293,7 @@
 #define DOOR_CRUSH_DAMAGE	15	//the amount of damage that airlocks deal when they crush you
 
 #define	HUNGER_FACTOR		0.1	//factor at which mob nutrition decreases
+#define	ETHEREAL_CHARGE_FACTOR	0.08 //factor at which ethereal's charge decreases
 #define	REAGENTS_METABOLISM 0.4	//How many units of reagent are consumed per tick, by default.
 #define REAGENTS_EFFECT_MULTIPLIER (REAGENTS_METABOLISM / 0.4)	// By defining the effect multiplier this way, it'll exactly adjust all effects according to how they originally were with the 0.4 metabolism