Massive click code rework by SuperSayu, ported from TG.

Full details at https://github.com/tgstation/-tg-station/pull/1206
Fixes #3648

Signed-off-by: Mloc-Argent <colmohici@gmail.com>

code/game/objects/items/devices/PDA/PDA.dm

@@ -1018,7 +1018,8 @@ var/global/list/obj/item/device/pda/PDAs = list()
 				else
 					user.show_message("\blue No radiation detected.")
 
-/obj/item/device/pda/afterattack(atom/A as mob|obj|turf|area, mob/user as mob)
+/obj/item/device/pda/afterattack(atom/A as mob|obj|turf|area, mob/user as mob, proximity)
+	if(!proximity) return
 	switch(scanmode)
 
 		if(3)

code/game/objects/items/devices/chameleonproj.dm

@@ -1,7 +1,7 @@
 /obj/item/device/chameleon
 	name = "chameleon-projector"
 	icon_state = "shield0"
-	flags = FPRINT | TABLEPASS| CONDUCT | USEDELAY
+	flags = FPRINT | TABLEPASS| CONDUCT
 	slot_flags = SLOT_BELT
 	item_state = "electronic"
 	throwforce = 5.0
@@ -19,7 +19,8 @@
 	attack_self()
 		toggle()
 
-	afterattack(atom/target, mob/user , flag)
+	afterattack(atom/target, mob/user, proximity)
+		if(!proximity) return
 		if(istype(target,/obj/item))
 			playsound(src, 'sound/weapons/flash.ogg', 100, 1, 1)
 			user << "\blue Scanned [target]."