cool

mods/worldedit/worldedit_commands/safe.lua

@@ -0,0 +1,48 @@
+local safe_region_callback = {}
+
+--`count` is the number of nodes that would possibly be modified
+--`callback` is a callback to run when the user confirms
+local function safe_region(name, count, callback)
+	if count < 20000 then
+		return callback()
+	end
+
+	--save callback to call later
+	safe_region_callback[name] = callback
+	worldedit.player_notify(name, "WARNING: this operation could affect up to " .. count .. " nodes; type //y to continue or //n to cancel")
+end
+
+local function reset_pending(name)
+	safe_region_callback[name] = nil
+end
+
+minetest.register_chatcommand("/y", {
+	params = "",
+	description = "Confirm a pending operation",
+	func = function(name)
+		local callback = safe_region_callback[name]
+		if not callback then
+			worldedit.player_notify(name, "no operation pending")
+			return
+		end
+
+		reset_pending(name)
+		callback(name)
+	end,
+})
+
+minetest.register_chatcommand("/n", {
+	params = "",
+	description = "Abort a pending operation",
+	func = function(name)
+		if not safe_region_callback[name] then
+			worldedit.player_notify(name, "no operation pending")
+			return
+		end
+
+		reset_pending(name)
+	end,
+})
+
+
+return safe_region, reset_pending