Porting multi-z support updates.

2019-10-27 16:32:32 +01:00
parent b9bf7b726d
commit 4aa1d55abb
44 changed files with 11050 additions and 142 deletions
@@ -100,6 +100,7 @@
 	number_of_rods = 2
 	smooth = SMOOTH_TRUE
 	canSmoothWith = null
+	obj_flags = CAN_BE_HIT | BLOCK_Z_FALL

 /obj/structure/lattice/catwalk/deconstruction_hints(mob/user)
 	to_chat(user, "<span class='notice'>The supporting rods look like they could be <b>cut</b>.</span>")
@@ -0,0 +1,125 @@
+#define STAIR_TERMINATOR_AUTOMATIC 0
+#define STAIR_TERMINATOR_NO 1
+#define STAIR_TERMINATOR_YES 2
+
+/obj/structure/stairs
+	name = "stairs"
+	icon = 'icons/obj/stairs.dmi'
+	icon_state = "stairs"
+	anchored = TRUE
+	//dir = direction of travel to go upwards
+
+	var/force_open_above = FALSE
+	var/terminator_mode = STAIR_TERMINATOR_AUTOMATIC
+	var/turf/listeningTo
+
+/obj/structure/stairs/Initialize(mapload)
+	if(force_open_above)
+		force_open_above()
+		build_signal_listener()
+	update_surrounding()
+	return ..()
+
+/obj/structure/stairs/Destroy()
+	listeningTo = null
+	return ..()
+
+/obj/structure/stairs/Move()			//Look this should never happen but...
+	. = ..()
+	if(force_open_above)
+		build_signal_listener()
+	update_surrounding()
+
+/obj/structure/stairs/proc/update_surrounding()
+	update_icon()
+	for(var/i in GLOB.cardinals)
+		var/turf/T = get_step(get_turf(src), i)
+		var/obj/structure/stairs/S = locate() in T
+		if(S)
+			S.update_icon()
+
+/obj/structure/stairs/Uncross(atom/movable/AM, turf/newloc)
+	if(!newloc || !AM)
+		return ..()
+	if(!isobserver(AM) && isTerminator() && (get_dir(src, newloc) == dir))
+		stair_ascend(AM)
+		return FALSE
+	return ..()
+
+/obj/structure/stairs/Cross(atom/movable/AM)
+	if(isTerminator() && (get_dir(src, AM) == dir))
+		return FALSE
+	return ..()
+
+/obj/structure/stairs/update_icon()
+	if(isTerminator())
+		icon_state = "stairs_t"
+	else
+		icon_state = "stairs"
+
+/obj/structure/stairs/proc/stair_ascend(atom/movable/AM)
+	var/turf/checking = get_step_multiz(get_turf(src), UP)
+	if(!istype(checking))
+		return
+	if(!checking.zPassIn(AM, UP, get_turf(src)))
+		return
+	var/turf/target = get_step_multiz(get_turf(src), (dir|UP))
+	if(istype(target) && !target.can_zFall(AM, null, get_step_multiz(target, DOWN)))			//Don't throw them into a tile that will just dump them back down.
+		if(isliving(AM))
+			var/mob/living/L = AM
+			var/pulling = L.pulling
+			if(pulling)
+				L.pulling.forceMove(target)
+			L.forceMove(target)
+			L.start_pulling(pulling)
+		else
+			AM.forceMove(target)
+
+/obj/structure/stairs/vv_edit_var(var_name, var_value)
+	. = ..()
+	if(!.)
+		return
+	if(var_name != NAMEOF(src, force_open_above))
+		return
+	if(!var_value)
+		if(listeningTo)
+			UnregisterSignal(listeningTo, COMSIG_TURF_MULTIZ_NEW)
+			listeningTo = null
+	else
+		build_signal_listener()
+		force_open_above()
+
+/obj/structure/stairs/proc/build_signal_listener()
+	if(listeningTo)
+		UnregisterSignal(listeningTo, COMSIG_TURF_MULTIZ_NEW)
+	var/turf/open/openspace/T = get_step_multiz(get_turf(src), UP)
+	RegisterSignal(T, COMSIG_TURF_MULTIZ_NEW, .proc/on_multiz_new)
+	listeningTo = T
+
+/obj/structure/stairs/proc/force_open_above()
+	var/turf/open/openspace/T = get_step_multiz(get_turf(src), UP)
+	if(T && !istype(T))
+		T.ChangeTurf(/turf/open/openspace)
+
+/obj/structure/stairs/proc/on_multiz_new(turf/source, dir)
+	if(dir == UP)
+		var/turf/open/openspace/T = get_step_multiz(get_turf(src), UP)
+		if(T && !istype(T))
+			T.ChangeTurf(/turf/open/openspace)
+
+/obj/structure/stairs/intercept_zImpact(atom/movable/AM, levels = 1)
+	return isTerminator()
+
+/obj/structure/stairs/proc/isTerminator()			//If this is the last stair in a chain and should move mobs up
+	if(terminator_mode != STAIR_TERMINATOR_AUTOMATIC)
+		return (terminator_mode == STAIR_TERMINATOR_YES)
+	var/turf/T = get_turf(src)
+	if(!T)
+		return FALSE
+	var/turf/them = get_step(T, dir)
+	if(!them)
+		return FALSE
+	for(var/obj/structure/stairs/S in them)
+		if(S.dir == dir)
+			return FALSE
+	return TRUE