Code Cleanup: (Bump(), Bumped()) -> (Collide(), CollidedWith()) (#4349)

This PR rips out the old Bump() and Bumped() procs and replaces them with Collide() and CollidedWith() respectively. Behavior should be the same, but Bump() should no longer be double-called, and no longer relies on spawns.

Other changes:

LAssailant is now a weakref.
Some direct loc setting are now forceMove().

code/modules/power/singularity/particle_accelerator/particle.dm

@@ -37,7 +37,8 @@
 	return
 
 
-/obj/effect/accelerated_particle/Bump(atom/A)
+/obj/effect/accelerated_particle/Collide(atom/A)
+	. = ..()
 	if (A)
 		if(ismob(A))
 			toxmob(A)
@@ -45,11 +46,10 @@
 			A:energy += energy
 	return
 
-
-/obj/effect/accelerated_particle/Bumped(atom/A)
+/obj/effect/accelerated_particle/CollidedWith(atom/A)
+	. = ..()
 	if(ismob(A))
-		Bump(A)
-	return
+		toxmob(A)
 
 
 /obj/effect/accelerated_particle/ex_act(severity)

code/modules/power/singularity/singularity.dm

@@ -72,11 +72,15 @@
 /obj/singularity/bullet_act(obj/item/projectile/P)
 	return 0 //Will there be an impact? Who knows. Will we see it? No.
 
-/obj/singularity/Bump(atom/A)
-	consume(A)
+/obj/singularity/Collide(atom/A)
+	. = ..()
+	if (A)
+		consume(A)
 
-/obj/singularity/Bumped(atom/A)
-	consume(A)
+/obj/singularity/CollidedWith(atom/movable/AM)
+	. = ..()
+	if (AM)
+		consume(AM)
 
 /obj/singularity/process()
 	eat()