Merge pull request #10451 from kevinz000/mobility_flags

Mobility flags + combat rework stuff refactoring, fixes a few edge cases including the Oh Dreaded Xenomorph Hardstuns, etc etc time to break the game

code/game/objects/effects/anomalies.dm

@@ -113,7 +113,7 @@
 
 /obj/effect/anomaly/grav/proc/gravShock(mob/living/A)
 	if(boing && isliving(A) && !A.stat)
-		A.Knockdown(40)
+		A.DefaultCombatKnockdown(40)
 		var/atom/target = get_edge_target_turf(A, get_dir(src, get_step_away(A, src)))
 		A.throw_at(target, 5, 1)
 		boing = 0

code/game/objects/effects/effect_system/effects_other.dm

@@ -104,4 +104,5 @@
 	if(explosion_message)
 		location.visible_message("<span class='danger'>The solution violently explodes!</span>", \
 								"<span class='italics'>You hear an explosion!</span>")
-	dyn_explosion(location, amount, flashing_factor)
+	dyn_explosion(location, amount, flashing_factor)
+

code/game/objects/effects/mines.dm

@@ -48,7 +48,7 @@
 
 /obj/effect/mine/stun/mineEffect(mob/living/victim)
 	if(isliving(victim))
-		victim.Knockdown(stun_time)
+		victim.DefaultCombatKnockdown(stun_time)
 
 /obj/effect/mine/kickmine
 	name = "kick mine"

code/game/objects/effects/step_triggers.dm

@@ -61,10 +61,11 @@
 		if(AM in T.affecting)
 			return
 
-	if(ismob(AM))
-		var/mob/M = AM
+	if(isliving(AM))
+		var/mob/living/M = AM
 		if(immobilize)
-			M.canmove = 0
+			ADD_TRAIT(M, TRAIT_MOBILITY_NOMOVE, src)
+			M.update_mobility()
 
 	affecting.Add(AM)
 	while(AM && !stopthrow)
@@ -98,10 +99,11 @@
 
 	affecting.Remove(AM)
 
-	if(ismob(AM))
-		var/mob/M = AM
+	if(isliving(AM))
+		var/mob/living/M = AM
 		if(immobilize)
-			M.canmove = 1
+			REMOVE_TRAIT(M, TRAIT_MOBILITY_NOMOVE, src)
+			M.update_mobility()
 
 /* Stops things thrown by a thrower, doesn't do anything */