Adding keys to a static Dictionary doesn't keep the values at the end of the function

Questions & Answers
1

Hi,

well I use static variables because it isn’t destroyed at the end of the function… So, I have that code:

public class mInput {
	
	public static Dictionary<string, KeyCode> inputMap;

	public static void LoadAllKeysFromConfig() {

		inputMap = new Dictionary<string, KeyCode>();

		inputMap.Add("Exp", GetKeyFromString("L"));

		inputMap.Add("Kill", GetKeyFromString("K"));

		inputMap.Add("FPS", GetKeyFromString("F10"));

		inputMap.Add("EnableGUI", GetKeyFromString("F1"));

		inputMap.Add("GameMenu", GetKeyFromString("Escape"));

		inputMap.Add("Inv", GetKeyFromString("E"));

		inputMap.Add("Waypoint", GetKeyFromString("P"));

		inputMap.Add("ToggleMap", GetKeyFromString("M"));

		inputMap.Add("SwitchView", GetKeyFromString("V"));

		inputMap.Add("TakeScreenShot", GetKeyFromString("F2"));

		inputMap.Add("Laser", GetKeyFromString("L"));

		inputMap.Add("FlashLight", GetKeyFromString("F"));

		inputMap.Add("Reload", GetKeyFromString("R"));

		inputMap.Add("Console", GetKeyFromString("F12"));

		inputMap.Add("SendCommand", GetKeyFromString("Return"));

		inputMap.Add("Unlock", GetKeyFromString("U"));

	}

	private static KeyCode GetKeyFromString(string KeyStr, bool IgnoreCase = true) {
		return (KeyCode)System.Enum.Parse(typeof(KeyCode), KeyStr, IgnoreCase);
	}

}

(I call LoadAllKeysFromConfig() from a Start() function from another script)

But when I want to request some control, NullReferenceException appears, why?

Thanks in advance.
Bye.

2

The code itself seems to work.
Are you sure there are no calls to inputMap before you run LoadAllKeysFromConfig() the first time ?

To ensure this you could make a getter (since the values are hardcoded and all)

private static Dictionary<string, KeyCode> inputMap;

	public static Dictionary<string, KeyCode> InputMap {
		get {
			if (inputMap == null)
			{
				LoadAllKeysFromConfig();
			}
			return inputMap;
		}
	}