PoIs can be rotated in increments of 90 degrees

code/modules/admin/verbs/map_template_loadverb.dm

@@ -10,13 +10,17 @@
 		return
 	template = map_templates[map]
 
+	var/orientation = text2dir(input(usr, "Choose an orientation for this Map Template.", "Orientation") as null|anything in list("North", "South", "East", "West"))
+	if(!orientation)
+		return
+
 	var/turf/T = get_turf(mob)
 	if(!T)
 		return
 
 	var/list/preview = list()
-	template.preload_size(template.mappath)
+	template.preload_size(template.mappath, orientation)
-	for(var/S in template.get_affected_turfs(T,centered = TRUE))
+	for(var/S in template.get_affected_turfs(T,centered = TRUE, orientation))
 		preview += image('icons/misc/debug_group.dmi',S ,"red")
 	usr.client.images += preview
 	if(alert(usr,"Confirm location.", "Template Confirm","No","Yes") == "Yes")
@@ -25,7 +29,7 @@
 			usr.client.images -= preview
 			return
 
-		if(template.load(T, centered = TRUE))
+		if(template.load(T, centered = TRUE, orientation))
 			message_admins("<span class='adminnotice'>[key_name_admin(usr)] has placed a map template ([template.name]).</span>")
 		else
 			to_chat(usr, "Failed to place map")
@@ -41,14 +45,18 @@
 	if(!map)
 		return
 	template = map_templates[map]
-	
+
-	if(template.width > world.maxx || template.height > world.maxy)		
+	var/orientation = text2dir(input(usr, "Choose an orientation for this Map Template.", "Orientation") as null|anything in list("North", "South", "East", "West"))
+	if(!orientation)
+		return
+
+	if(((orientation & (NORTH|SOUTH) && template.width > world.maxx || template.height > world.maxy) || ((orientation & (EAST|WEST)) && template.width > world.maxy || template.height > world.maxx)))
 		if(alert(usr,"This template is larger than the existing z-levels. It will EXPAND ALL Z-LEVELS to match the size of the template. This may cause chaos. Are you sure you want to do this?","DANGER!!!","Cancel","Yes") == "Cancel")
 			to_chat(usr,"Template placement aborted.")
 			return
-	
+
 	if(alert(usr,"Confirm map load.", "Template Confirm","No","Yes") == "Yes")
-		if(template.load_new_z())
+		if(template.load_new_z(orientation=orientation))
 			message_admins("<span class='adminnotice'>[key_name_admin(usr)] has placed a map template ([template.name]) on Z level [world.maxz].</span>")
 		else
 			to_chat(usr, "Failed to place map")

code/modules/maps/tg/map_template.dm

@@ -37,8 +37,8 @@ var/list/global/map_templates = list()
 	if(rename)
 		name = rename
 
-/datum/map_template/proc/preload_size(path)
+/datum/map_template/proc/preload_size(path, orientation = SOUTH)
-	var/bounds = maploader.load_map(file(path), 1, 1, 1, cropMap=FALSE, measureOnly=TRUE)
+	var/bounds = maploader.load_map(file(path), 1, 1, 1, cropMap=FALSE, measureOnly=TRUE, orientation=orientation)
 	if(bounds)
 		width = bounds[MAP_MAXX] // Assumes all templates are rectangular, have a single Z level, and begin at 1,1,1
 		height = bounds[MAP_MAXY]
@@ -82,7 +82,7 @@ var/list/global/map_templates = list()
 
 	admin_notice("<span class='danger'>Submap initializations finished.</span>", R_DEBUG)
 
-/datum/map_template/proc/load_new_z(var/centered = FALSE)
+/datum/map_template/proc/load_new_z(var/centered = FALSE, var/orientation = SOUTH)
 	var/x = 1
 	var/y = 1
 
@@ -90,7 +90,7 @@ var/list/global/map_templates = list()
 		x = round((world.maxx - width)/2)
 		y = round((world.maxy - height)/2)
 
-	var/list/bounds = maploader.load_map(file(mappath), x, y, no_changeturf = TRUE)
+	var/list/bounds = maploader.load_map(file(mappath), x, y, no_changeturf = TRUE, orientation=orientation)
 	if(!bounds)
 		return FALSE
 
@@ -101,7 +101,7 @@ var/list/global/map_templates = list()
 	log_game("Z-level [name] loaded at at [x],[y],[world.maxz]")
 	return TRUE
 
-/datum/map_template/proc/load(turf/T, centered = FALSE)
+/datum/map_template/proc/load(turf/T, centered = FALSE, orientation = SOUTH)
 	var/old_T = T
 	if(centered)
 		T = locate(T.x - round(width/2) , T.y - round(height/2) , T.z)
@@ -115,7 +115,7 @@ var/list/global/map_templates = list()
 	if(annihilate)
 		annihilate_bounds(old_T, centered)
 
-	var/list/bounds = maploader.load_map(file(mappath), T.x, T.y, T.z, cropMap=TRUE)
+	var/list/bounds = maploader.load_map(file(mappath), T.x, T.y, T.z, cropMap=TRUE, orientation = orientation)
 	if(!bounds)
 		return
 
@@ -129,13 +129,13 @@ var/list/global/map_templates = list()
 	loaded++
 	return TRUE
 
-/datum/map_template/proc/get_affected_turfs(turf/T, centered = FALSE)
+/datum/map_template/proc/get_affected_turfs(turf/T, centered = FALSE, orientation = SOUTH)
 	var/turf/placement = T
 	if(centered)
-		var/turf/corner = locate(placement.x - round(width/2), placement.y - round(height/2), placement.z)
+		var/turf/corner = locate(placement.x - round(((orientation & NORTH|SOUTH) ? width : height)/2), placement.y - round(((orientation & NORTH|SOUTH) ? height : width)/2), placement.z)
 		if(corner)
 			placement = corner
-	return block(placement, locate(placement.x+width-1, placement.y+height-1, placement.z))
+	return block(placement, locate(placement.x+((orientation & NORTH|SOUTH) ? width : height)-1, placement.y+((orientation & NORTH|SOUTH) ? height : width)-1, placement.z))
 
 /datum/map_template/proc/annihilate_bounds(turf/origin, centered = FALSE)
 	var/deleted_atoms = 0
@@ -151,9 +151,9 @@ var/list/global/map_templates = list()
 
 //for your ever biggening badminnery kevinz000
 //❤ - Cyberboss
-/proc/load_new_z_level(var/file, var/name)
+/proc/load_new_z_level(var/file, var/name, var/orientation = SOUTH)
 	var/datum/map_template/template = new(file, name)
-	template.load_new_z()
+	template.load_new_z(orientation)
 
 // Very similar to the /tg/ version.
 /proc/seed_submaps(var/list/z_levels, var/budget = 0, var/whitelist = /area/space, var/desired_map_template_type = null)
@@ -247,7 +247,7 @@ var/list/global/map_templates = list()
 			admin_notice("Submap \"[chosen_template.name]\" placed at ([T.x], [T.y], [T.z])", R_DEBUG)
 
 			// Do loading here.
-			chosen_template.load(T, centered = TRUE) // This is run before the main map's initialization routine, so that can initilize our submaps for us instead.
+			chosen_template.load(T, centered = TRUE, pick(cardinal)) // This is run before the main map's initialization routine, so that can initilize our submaps for us instead.
 
 			CHECK_TICK
 

code/modules/maps/tg/reader.dm

@@ -35,7 +35,7 @@ var/global/use_preloader = FALSE
  * 2) Read the map line by line, parsing the result (using parse_grid)
  *
  */
-/dmm_suite/load_map(dmm_file as file, x_offset as num, y_offset as num, z_offset as num, cropMap as num, measureOnly as num, no_changeturf as num)
+/dmm_suite/load_map(dmm_file as file, x_offset as num, y_offset as num, z_offset as num, cropMap as num, measureOnly as num, no_changeturf as num, orientation as num)
 	//How I wish for RAII
 	if(!measureOnly)
 		Master.StartLoadingMap()
@@ -43,7 +43,7 @@ var/global/use_preloader = FALSE
 	#ifdef TESTING
 	turfsSkipped = 0
 	#endif
-	. = load_map_impl(dmm_file, x_offset, y_offset, z_offset, cropMap, measureOnly, no_changeturf)
+	. = load_map_impl(dmm_file, x_offset, y_offset, z_offset, cropMap, measureOnly, no_changeturf, orientation)
 	#ifdef TESTING
 	if(turfsSkipped)
 		testing("Skipped loading [turfsSkipped] default turfs")
@@ -51,7 +51,7 @@ var/global/use_preloader = FALSE
 	if(!measureOnly)
 		Master.StopLoadingMap()
 
-/dmm_suite/proc/load_map_impl(dmm_file, x_offset, y_offset, z_offset, cropMap, measureOnly, no_changeturf)
+/dmm_suite/proc/load_map_impl(dmm_file, x_offset, y_offset, z_offset, cropMap, measureOnly, no_changeturf, orientation)
 	var/tfile = dmm_file//the map file we're creating
 	if(isfile(tfile))
 		tfile = file2text(tfile)
@@ -63,6 +63,10 @@ var/global/use_preloader = FALSE
 	if(!z_offset)
 		z_offset = world.maxz + 1
 
+	// If it's not a single dir, default to north (Default orientation)
+	if(!orientation in cardinal)
+		orientation = SOUTH
+
 	var/list/bounds = list(1.#INF, 1.#INF, 1.#INF, -1.#INF, -1.#INF, -1.#INF)
 	var/list/grid_models = list()
 	var/key_len = 0
@@ -95,6 +99,11 @@ var/global/use_preloader = FALSE
 			var/ycrd = text2num(dmmRegex.group[4]) + y_offset - 1
 			var/zcrd = text2num(dmmRegex.group[5]) + z_offset - 1
 
+			if(orientation & (EAST | WEST))
+				xcrd = ycrd // temp variable
+				ycrd = xcrdStart
+				xcrdStart = xcrd
+
 			var/zexpansion = zcrd > world.maxz
 			if(zexpansion && !measureOnly)
 				if(cropMap)
@@ -132,14 +141,73 @@ var/global/use_preloader = FALSE
 				bounds[MAP_MAXY] = max(bounds[MAP_MAXY], min(ycrd, world.maxy))
 
 			var/maxx = xcrdStart
+
+			// Assemble the grid of keys
+			var/list/key_list = list()
+			for(var/line in gridLines)
+				var/list/line_keys = list()
+				xcrd = 1
+				for(var/tpos = 1 to length(line) - key_len + 1 step key_len)
+					if(xcrd > world.maxx)
+						if(cropMap)
+							break
+						else
+							world.maxx = xcrd
+
+					if(xcrd >= 1)
+						var/model_key = copytext(line, tpos, tpos + key_len)
+						if(!grid_models[model_key])
+							throw EXCEPTION("Undefined model key in DMM: [dmm_file], [model_key].")
+						line_keys[++line_keys.len] = model_key
+						#ifdef TESTING
+						else
+							++turfsSkipped
+						#endif
+						CHECK_TICK
+					maxx = max(maxx, ++xcrd)
+				key_list[++key_list.len] = line_keys
+
+			// Rotate the list according to orientation
+			if(orientation != SOUTH)
+				var/num_cols = key_list[1].len
+				var/num_rows = key_list.len
+				var/list/new_key_list = list()
+				// If it's rotated 180 degrees, the dimensions are the same
+				if(orientation == NORTH)
+					new_key_list.len = num_rows
+					for(var/i in 1 to new_key_list.len)
+						new_key_list[i] = list()
+						new_key_list[i].len = num_cols
+				// Else, the dimensions are swapped
+				else
+					new_key_list.len = num_cols
+					for(var/i in 1 to new_key_list.len)
+						new_key_list[i] = list()
+						new_key_list[i].len = num_rows
+
+				num_rows++ // Buffering against the base index of 1
+				num_cols++
+				// Populate the new list
+				for(var/i in 1 to key_list.len)
+					for(var/j in 1 to key_list[i].len)
+						switch(orientation)
+							if(NORTH)
+								new_key_list[i][j] = key_list[num_rows - i][num_cols - j]
+							if(EAST)
+								new_key_list[i][j] = key_list[num_cols - i][j]
+							if(WEST)
+								new_key_list[i][j] = key_list[j][num_rows - i]
+
+				key_list = new_key_list
+
 			if(measureOnly)
-				for(var/line in gridLines)
+				for(var/list/line in key_list)
-					maxx = max(maxx, xcrdStart + length(line) / key_len - 1)
+					maxx = max(maxx, line.len)
 			else
-				for(var/line in gridLines)
+				for(var/i in 1 to key_list.len)
 					if(ycrd <= world.maxy && ycrd >= 1)
 						xcrd = xcrdStart
-						for(var/tpos = 1 to length(line) - key_len + 1 step key_len)
+						for(var/j = 1 to key_list.len)
 							if(xcrd > world.maxx)
 								if(cropMap)
 									break
@@ -147,12 +215,11 @@ var/global/use_preloader = FALSE
 									world.maxx = xcrd
 
 							if(xcrd >= 1)
-								var/model_key = copytext(line, tpos, tpos + key_len)
 								var/no_afterchange = no_changeturf || zexpansion
-								if(!no_afterchange || (model_key != space_key))
+								if(!no_afterchange || (key_list[i][j] != space_key))
-									if(!grid_models[model_key])
+									if(!grid_models[key_list[i][j]])
 										throw EXCEPTION("Undefined model key in DMM.")
-									parse_grid(grid_models[model_key], model_key, xcrd, ycrd, zcrd, no_changeturf || zexpansion)
+									parse_grid(grid_models[key_list[i][j]], key_list[i][j], xcrd, ycrd, zcrd, no_afterchange, orientation)
 								#ifdef TESTING
 								else
 									++turfsSkipped
@@ -194,7 +261,7 @@ var/global/use_preloader = FALSE
  * 4) Instanciates the atom with its variables
  *
  */
-/dmm_suite/proc/parse_grid(model as text, model_key as text, xcrd as num,ycrd as num,zcrd as num, no_changeturf as num)
+/dmm_suite/proc/parse_grid(model as text, model_key as text, xcrd as num,ycrd as num,zcrd as num, no_changeturf as num, orientation as num)
 	/*Method parse_grid()
 	- Accepts a text string containing a comma separated list of type paths of the
 		same construction as those contained in a .dmm file, and instantiates them.
@@ -236,6 +303,7 @@ var/global/use_preloader = FALSE
 
 			//transform the variables in text format into a list (e.g {var1="derp"; var2; var3=7} => list(var1="derp", var2, var3=7))
 			var/list/fields = list()
+			var/dir_found = FALSE // If dir isn't mapped, then we'll need to add an attribute entry to rotate it according to orientation
 
 			if(variables_start)//if there's any variable
 				full_def = copytext(full_def,variables_start+1,length(full_def))//removing the last '}'
@@ -248,6 +316,16 @@ var/global/use_preloader = FALSE
 						if(istext(value))
 							fields[I] = apply_text_macros(value)
 
+							// Rotate dir if orientation isn't south (default)
+							if(orientation != SOUTH && findtext(splittext(fields[I], "="), " dir ")) // Spaces are necessary, or we might catch other vars
+								var/list/L = splittext(fields[I], " ")
+								L[L.len] = turn(text2num(L.len), dir2angle(orientation) + 180) // South is 0 here, dir2angle assumes north is 0
+								fields[I] = jointext(L, " ")
+								dir_found = TRUE
+
+			if(!dir_found)
+				fields[++fields.len] = "dir = [num2text(orientation)]"
+
 			//then fill the members_attributes list with the corresponding variables
 			members_attributes.len++
 			members_attributes[index++] = fields