Ported catching things from TG

If something hits human with throw intent on, he'll catch it instead of getting hit.
Uses speed var to determine if it's 2fast4catch.
credit to PeteTheGoat

code/modules/mob/living/carbon/human/human_defense.dm

@@ -294,6 +294,15 @@ emp_act
 /mob/living/carbon/human/hitby(atom/movable/AM as mob|obj,var/speed = 5)
 	if(istype(AM,/obj/))
 		var/obj/O = AM
+
+		if(in_throw_mode && !get_active_hand() && speed <= 5)	//empty active hand and we're in throw mode
+			if(canmove && !restrained())
+				if(isturf(O.loc))
+					put_in_active_hand(O)
+					visible_message("<span class='warning'>[src] catches [O]!</span>")
+					throw_mode_off()
+					return
+
 		var/dtype = BRUTE
 		if(istype(O,/obj/item/weapon))
 			var/obj/item/weapon/W = O