TK exploits (#18302)

* tk range checks

* fixes

* spans

code/__defines/dna.dm

@@ -177,3 +177,7 @@ var/SMALLSIZEBLOCK     = 0
 // Gene flags
 #define GENE_ALWAYS_ACTIVATE 1
 #define MUTCHK_HIDEMSG       2 // Traitgenes (Hide gene activation/deactivation messages, mostly for resleeving so you don't get spammed)
+
+// Misc
+#define TK_DENIED_MESSAGE span_warning("You are too distracted to focus your telekinesis.")
+#define TK_OUTRANGED_MESSAGE span_notice("Your telekinesis won't reach that far.")

code/_onclick/click.dm

@@ -221,6 +221,7 @@
 		LaserEyes(A) // moved into a proc below
 	else if(has_telegrip())
 		if(get_dist(src, A) > tk_maxrange)
+			to_chat(src, TK_OUTRANGED_MESSAGE)
 			return
 		A.attack_tk(src)
 /*

code/_onclick/other_mobs.dm

@@ -57,8 +57,12 @@
 		if(istype(gloves,/obj/item/clothing/gloves/telekinetic))
 			var/obj/item/clothing/gloves/telekinetic/TKG = gloves
 			TKG.use_grip_power(src,TRUE)
-		A.attack_tk(src)
-
+		if(client.eye != src) // Extremely bad exploits if allowed to TK while remote viewing
+			to_chat(src, TK_DENIED_MESSAGE)
+		else if(get_dist(src, A) > tk_maxrange)
+			to_chat(src, TK_OUTRANGED_MESSAGE)
+		else
+			A.attack_tk(src)
 	else if(spitting) //Only used by xenos right now, can be expanded.
 		Spit(A)
 

code/_onclick/telekinesis.dm

@@ -107,11 +107,15 @@ var/const/tk_maxrange = 15
 	if(isobj(target) && !isturf(target.loc))
 		return
 
+	if(user.client.eye != user) // Extremely bad exploits if allowed to TK while remote viewing
+		to_chat(user, TK_DENIED_MESSAGE)
+		return
+
 	var/d = get_dist(user, target)
 	if(focus)
 		d = max(d, get_dist(user, focus)) // whichever is further
 	if(d > tk_maxrange)
-		to_chat(user, span_notice("Your mind won't reach that far."))
+		to_chat(user, TK_OUTRANGED_MESSAGE)
 		return
 
 	if(!focus)