Add custom level size changer in editor

mods/lzr_editor/init.lua

@@ -1,5 +1,7 @@
 local S = minetest.get_translator("lzr_editor")
 
+local level_size = table.copy(lzr_globals.DEFAULT_LEVEL_SIZE)
+
 minetest.register_chatcommand("editor", {
 	privs = { server = true },
 	description = S("Start or exit level editor"),
@@ -30,6 +32,46 @@ minetest.register_chatcommand("editor", {
 	end,
 })
 
+local function clear_area(size)
+	local posses = {}
+	for z=-1, size.x+1 do
+	for y=-1, size.y+1 do
+	for x=-1, size.z+1 do
+		local pos = vector.new(x,y,z)
+		pos = vector.add(pos, lzr_globals.LEVEL_POS)
+		table.insert(posses, vector.new(x,y,z))
+	end
+	end
+	end
+	minetest.bulk_set_node(posses, {name="air"})
+end
+
+minetest.register_chatcommand("editor_size", {
+	privs = { server = true },
+	description = S("Set level size for editor (warning: clears level contents!)"),
+	params = "<x>,<y>,<z>",
+	func = function(name, param)
+		if lzr_gamestate.get_state() ~= lzr_gamestate.EDITOR then
+			return false, S("Not in editor mode!")
+		end
+		local size = minetest.string_to_pos(param)
+		if not size then
+			return false
+		end
+		if size.x > lzr_globals.PLAYFIELD_SIZE.x or
+				size.y > lzr_globals.PLAYFIELD_SIZE.y or
+				size.z > lzr_globals.PLAYFIELD_SIZE.z then
+			return false, S("Too large!")
+		end
+		if size.x < 1 or size.y < 4 or size.z < 1 then
+			return false, S("Too small!")
+		end
+		clear_area(lzr_globals.PLAYFIELD_SIZE)
+		level_size = size
+		lzr_levels.build_room(lzr_globals.LEVEL_POS, level_size)
+		return true
+	end,
+})
 
 -- Dummy save and load functions (only 1 level name supported for now)
 minetest.register_chatcommand("editor_save", {
@@ -49,7 +91,7 @@ minetest.register_chatcommand("editor_save", {
 		local level_name = "level_custom_"..num
 		minetest.mkdir(minetest.get_worldpath().."/levels")
 		local filename = minetest.get_worldpath().."/levels/"..level_name..".mts"
-		local ok = minetest.create_schematic(lzr_globals.LEVEL_POS, vector.add(lzr_globals.LEVEL_POS, lzr_globals.PLAYFIELD_SIZE), {}, filename, {})
+		local ok = minetest.create_schematic(lzr_globals.LEVEL_POS, vector.add(lzr_globals.LEVEL_POS, level_size), {}, filename, {})
 		if ok then
 			minetest.log("action", "[lzr_editor] Level written to "..filename)
 			return true, S("Level saved to @1.", filename)
@@ -94,6 +136,8 @@ minetest.register_chatcommand("editor_load", {
 		local filename = minetest.get_worldpath().."/levels/"..level_name..".mts"
 		local schem = minetest.read_schematic(filename, {})
 		if schem then
+			level_size = schem.size
+			lzr_levels.build_room(lzr_globals.LEVEL_POS, level_size)
 			minetest.place_schematic(lzr_globals.LEVEL_POS, schem, "0", {}, true, {})
 			minetest.log("action", "[lzr_editor] Level loaded from "..filename)
 			return true, S("Level loaded.")

mods/lzr_globals/init.lua

@@ -1,11 +1,12 @@
 lzr_globals = {}
 
-lzr_globals.PLAYFIELD_START = { x = -5, y = 0, z = -5 }
-lzr_globals.PLAYFIELD_SIZE = { x = 20, y = 20, z = 20 }
+lzr_globals.PLAYFIELD_START = vector.new(-5, 0, -5)
+lzr_globals.PLAYFIELD_SIZE = vector.new(20, 20, 20)
 lzr_globals.PLAYFIELD_END = vector.add(lzr_globals.PLAYFIELD_START, lzr_globals.PLAYFIELD_SIZE)
-lzr_globals.LEVEL_POS = { x = 0, y = 0, z = 0 }
-lzr_globals.MENU_SHIP_POS = { x = -500, y = -4, z = -500 }
-lzr_globals.MENU_SHIP_PLAYER_SPAWN_OFFSET = { x = 7, y = 8.5, z = 29 }
-lzr_globals.MENU_SHIP_STARTBOOK_OFFSET = { x = 7, y = 10, z = 31 }
+lzr_globals.LEVEL_POS = vector.zero()
+lzr_globals.DEFAULT_LEVEL_SIZE = vector.new(10, 6, 10)
+lzr_globals.MENU_SHIP_POS = vector.new(-500, -4, -500)
+lzr_globals.MENU_SHIP_PLAYER_SPAWN_OFFSET = vector.new(7, 8.5, 29)
+lzr_globals.MENU_SHIP_STARTBOOK_OFFSET = vector.new(7, 10, 31)
 lzr_globals.MENU_PLAYER_SPAWN_POS = vector.add(lzr_globals.MENU_SHIP_POS, lzr_globals.MENU_SHIP_PLAYER_SPAWN_OFFSET)
 

mods/lzr_levels/init.lua

@@ -98,11 +98,13 @@ local emerge_callback = function(blockpos, action, calls_remaining, param)
 		minetest.log("error", "[lzr_levels] Room emerging cancelled.")
 	elseif calls_remaining == 0 and (action == minetest.EMERGE_GENERATED or action == minetest.EMERGE_FROM_DISK or action == minetest.EMERGE_FROM_MEMORY) then
 		build_room(param)
-		local level_ok = lzr_levels.build_level(param.level)
-		if not level_ok then
-			minetest.log("error", "[lzr_levels] Room emerge callback done with error")
-		else
-			minetest.log("action", "[lzr_levels] Room emerge callback done")
+		if param.level then
+			local level_ok = lzr_levels.build_level(param.level)
+			if not level_ok then
+				minetest.log("error", "[lzr_levels] Room emerge callback done with error")
+			else
+				minetest.log("action", "[lzr_levels] Room emerge callback done")
+			end
 		end
 	end
 end
@@ -116,7 +118,7 @@ function lzr_levels.build_room(pos, size, level)
 end
 
 function lzr_levels.prepare_and_build_level(level)
-	lzr_levels.build_room(lzr_globals.LEVEL_POS, {x=10, y=6, z=10}, level)
+	lzr_levels.build_room(lzr_globals.LEVEL_POS, level_data[level].size, level)
 end
 
 function lzr_levels.build_level(level)