Replaces HasEntered() with Crossed() and reduces redundant checks on turf/Enter()

code/modules/assembly/holder.dm

@@ -104,13 +104,13 @@
 			special_assembly.HasProximity(AM)
 
 
-	HasEntered(atom/movable/AM as mob|obj)
+	Crossed(atom/movable/AM as mob|obj)
 		if(a_left)
-			a_left.HasEntered(AM)
+			a_left.Crossed(AM)
 		if(a_right)
-			a_right.HasEntered(AM)
+			a_right.Crossed(AM)
 		if(special_assembly)
-			special_assembly.HasEntered(AM)
+			special_assembly.Crossed(AM)
 
 
 	on_found(mob/finder as mob)

code/modules/assembly/infrared.dm

@@ -253,7 +253,7 @@
 	hit()
 	return
 
-/obj/effect/beam/i_beam/HasEntered(atom/movable/AM as mob|obj)
+/obj/effect/beam/i_beam/Crossed(atom/movable/AM as mob|obj)
 	if(istype(AM, /obj/effect/beam))
 		return
 	spawn(0)

code/modules/assembly/mousetrap.dm

@@ -81,7 +81,7 @@
 		..()
 
 
-	HasEntered(AM as mob|obj)
+	Crossed(AM as mob|obj)
 		if(armed)
 			if(ishuman(AM))
 				var/mob/living/carbon/H = AM