OpenRA/OpenRA · error · LuaException

WAngle does not define a member '{key}'

Error message

WAngle does not define a member '{key}'

What it means

Lua scripting error from the WAngle indexer getter. WAngle only exposes the `"Angle"` member to Lua scripts; any other key passed via `wangle[key]` hits the default case and throws a LuaException naming the unknown member.

Source

Thrown at OpenRA.Game/WAngle.cs:268

				$"({left.WrappedClrType().Name}, {right.WrappedClrType().Name})");
		}

		public LuaValue Equals(LuaRuntime runtime, LuaValue left, LuaValue right)
		{
			if (!left.TryGetClrValue(out WAngle a) || !right.TryGetClrValue(out WAngle b))
				return false;

			return a == b;
		}

		public LuaValue this[LuaRuntime runtime, LuaValue key]
		{
			get
			{
				switch (key.ToString())
				{
					case "Angle": return Angle;
					default: throw new LuaException($"WAngle does not define a member '{key}'");
				}
			}

			set => throw new LuaException("WAngle is read-only. Use Angle.New to create a new value");
		}

		public LuaValue ToString(LuaRuntime runtime) => ToString();

		#endregion
	}
}

View on GitHub (pinned to a520984d91)

Solutions

1. Use the only valid member: `wangle.Angle`.
2. Check the OpenRA scripting docs / WAngle.cs to confirm the exposed members before accessing.
3. If you need a different representation, derive it from `wangle.Angle` yourself.

Example fix

-- before
local d = wangle.Degrees
-- after
local d = wangle.Angle

local valid = { Angle = true }
if valid[key] then
    v = wangle.Angle
else
    error("WAngle has no member " .. tostring(key))
end

local ok, val = pcall(function() return wangle.Angle end)
if ok then use(val) else reportUnknownMember(wangle, key) end

When it happens

Trigger: A Lua expression like `wangle.Degrees`, `wangle.Radians`, or `wangle["foo"]` — any member access other than `wangle.Angle`.

Common situations: Scripts guessing member names (e.g. assuming `Degrees` exists) or copy-pasted from documentation for a different type. Also typos in the key string.

Related errors

• CPos does not define a member '{key}'
• CVec does not define a member '{key}'
• Attempted to call WAngle.Add(WAngle, WAngle) with invalid ar
• Attempted to call WAngle.Subtract(WAngle, WAngle) with inval
• WAngle is read-only. Use Angle.New to create a new value

AI-assisted analysis of OpenRA/OpenRA@a520984d91 (2026-08-13). Data as JSON: /api/errors/d623daad03602acc. Report an issue: GitHub.