Added handling for space travel/stragglers.

Now new empty space levels are created if needed.
Added config option to use overmap system, ticked files in.

Conflicts:
	code/setup.dm

code/WorkInProgress/Chinsky/overmap/README.dm

@@ -88,12 +88,6 @@ Sector should appear on overmap (in random place if you didn't set mapx,mapy)
 
 
 TODO:
-more mechanics to moving ship:
-	actually working engine objects
-		unary atmospheric machinery
-		give more thrust the more pressure gas has
-		ships have mass var, which is used to caalculate how much acceleration those engines give
-better space travel / stragglers handling
 shuttle console:
 	checking occupied pad or not with docking controllers
 	?landing pad size detection

code/WorkInProgress/Chinsky/overmap/_defines.dm

@@ -32,4 +32,52 @@ proc/toggle_move_stars(zlevel, direction)
 						T.icon_state = "speedspace_[gen_dir]_[rand(1,15)]"
 						for(var/atom/movable/AM in T)
 							if (!AM.anchored)
-								AM.throw_at(get_step(T,reverse_direction(direction)), 5, 1)
+								AM.throw_at(get_step(T,reverse_direction(direction)), 5, 1)
+
+
+proc/overmap_spacetravel(var/turf/space/T, var/atom/movable/A)
+	var/obj/effect/map/M = map_sectors["[T.z]"]
+	if (!M)
+		return
+	var/mapx = M.x
+	var/mapy = M.y
+	var/nx = 1
+	var/ny = 1
+	var/nz = M.map_z
+
+	if(T.x <= TRANSITIONEDGE)
+		nx = world.maxx - TRANSITIONEDGE - 2
+		ny = rand(TRANSITIONEDGE + 2, world.maxy - TRANSITIONEDGE - 2)
+		mapx = max(1, mapx-1)
+
+	else if (A.x >= (world.maxx - TRANSITIONEDGE - 1))
+		nx = TRANSITIONEDGE + 2
+		ny = rand(TRANSITIONEDGE + 2, world.maxy - TRANSITIONEDGE - 2)
+		mapx = min(world.maxx, mapx+1)
+
+	else if (T.y <= TRANSITIONEDGE)
+		ny = world.maxy - TRANSITIONEDGE -2
+		nx = rand(TRANSITIONEDGE + 2, world.maxx - TRANSITIONEDGE - 2)
+		mapy = max(1, mapy-1)
+
+	else if (A.y >= (world.maxy - TRANSITIONEDGE - 1))
+		ny = TRANSITIONEDGE + 2
+		nx = rand(TRANSITIONEDGE + 2, world.maxx - TRANSITIONEDGE - 2)
+		mapy = min(world.maxy, mapy+1)
+
+	testing("[A] moving from [M] ([M.x], [M.y]) to ([mapx],[mapy]).")
+
+	var/turf/map = locate(mapx,mapy,OVERMAP_ZLEVEL)
+	var/obj/effect/map/TM = locate() in map
+	if(TM)
+		nz = TM.map_z
+		testing("Destination: [TM]")
+	else
+		world.maxz++
+		nz = world.maxz
+		TM = new /obj/effect/map/sector/temporary(mapx, mapy, nz)
+		testing("Destination: *new* [TM]")
+
+	var/turf/dest = locate(nx,ny,nz)
+	if(dest)
+		A.loc = dest

code/WorkInProgress/Chinsky/overmap/sectors.dm

@@ -5,7 +5,8 @@
 var/global/list/map_sectors = list()
 
 /hook/startup/proc/build_map()
-	accessable_z_levels = list() //no space travel with this system, at least not like this
+	if(!config.use_overmap)
+		return 1
 	testing("Building overmap...")
 	var/obj/effect/mapinfo/data
 	for(var/level in 1 to world.maxz)
@@ -93,3 +94,34 @@ var/global/list/map_sectors = list()
 	name = "generic sector"
 	desc = "Sector with some stuff in it."
 	anchored = 1
+
+//Space stragglers go here
+
+/obj/effect/map/sector/temporary
+	name = "Deep Space"
+	icon_state = ""
+	always_known = 0
+
+/obj/effect/map/sector/temporary/New(var/nx, var/ny, var/nz)
+	loc = locate(nx, ny, OVERMAP_ZLEVEL)
+	map_z = nz
+	map_sectors["[map_z]"] = src
+	testing("Temporary sector at [x],[y] was created, corresponding zlevel is [map_z].")
+
+/obj/effect/map/sector/temporary/Del()
+	map_sectors["[map_z]"] = null
+	testing("Temporary sector at [x],[y] was deleted.")
+	if (can_die())
+		testing("Associated zlevel disappeared.")
+		world.maxz--
+
+/obj/effect/map/sector/temporary/proc/can_die(var/mob/observer)
+	testing("Checking if sector at [map_z] can die.")
+	if(src.map_z < world.maxz)	//can't specify which zlevel to remove
+		testing("It is not last sector in the stack.")
+		return 0
+	for(var/mob/M in player_list)
+		if(M != observer && M.z == map_z)
+			testing("There are people on it.")
+			return 0
+	return 1