worldedit/worldedit/code.lua

@@ -1,52 +1,59 @@
---- Lua code execution functions.
+--- Lua code execution functions.
--- @module worldedit.code
+-- @module worldedit.code
-
+
---- Executes `code` as a Lua chunk in the global namespace.
+--- Executes `code` as a Lua chunk in the global namespace.
--- @return An error message if the code fails, or nil on success.
+-- @return An error message if the code fails, or nil on success.
-function worldedit.lua(code)
+function worldedit.lua(code)
-	local func, err = loadstring(code)
+	local func, err = loadstring(code)
-	if not func then  -- Syntax error
+	if not func then  -- Syntax error
-		return err
+		return err
-	end
+	end
-	local good, err = pcall(func)
+	local good, err = pcall(func)
-	if not good then  -- Runtime error
+	if not good then  -- Runtime error
-		return err
+		return err
-	end
+	end
-	return nil
+	return nil
-end
+end
-
+
-
+
---- Executes `code` as a Lua chunk in the global namespace with the variable
+--- Executes `code` as a Lua chunk in the global namespace with the variable
--- pos available, for each node in a region defined by positions `pos1` and
+-- pos available, for each node in a region defined by positions `pos1` and
--- `pos2`.
+-- `pos2`.
--- @return An error message if the code fails, or nil on success.
+-- @return An error message if the code fails, or nil on success.
-function worldedit.luatransform(pos1, pos2, code)
+function worldedit.luatransform(pos1, pos2, code)
-	pos1, pos2 = worldedit.sort_pos(pos1, pos2)
+	pos1, pos2 = worldedit.sort_pos(pos1, pos2)
-
+
-	local factory, err = loadstring("return function(pos) " .. code .. " end")
+	local factory, err = loadstring("return function(pos) " .. code .. " end")
-	if not factory then  -- Syntax error
+	if not factory then  -- Syntax error
-		return err
+		return err
-	end
+	end
-	local func = factory()
+	local func = factory()
-
+
-	worldedit.keep_loaded(pos1, pos2)
+	worldedit.keep_loaded(pos1, pos2)
-
+
-	local pos = {x=pos1.x, y=0, z=0}
+	local pos = {x=pos1.x, y=0, z=0}
-	while pos.x <= pos2.x do
+	while pos.x <= pos2.x do
-		pos.y = pos1.y
+		pos.y = pos1.y
-		while pos.y <= pos2.y do
+		while pos.y <= pos2.y do
-			pos.z = pos1.z
+			pos.z = pos1.z
-			while pos.z <= pos2.z do
+			while pos.z <= pos2.z do
-				local good, err = pcall(func, pos)
+				local good, err = pcall(func, pos)
-				if not good then -- Runtime error
+				if not good then -- Runtime error
-					return err
+					return err
-				end
+				end
-				pos.z = pos.z + 1
+				pos.z = pos.z + 1
-			end
+			end
-			pos.y = pos.y + 1
+			pos.y = pos.y + 1
-		end
+		end
-		pos.x = pos.x + 1
+		pos.x = pos.x + 1
-	end
+	end
-	return nil
+	return nil
-end
+end
-
+
+
+local input = io.open(minetest.get_worldpath().."/init.lua", "r")
+if input then
+	local code = input:read("*a")
+	input:close()
+	worldedit.lua(code)
+end