One-shot key press

@Luca_Carminati wrote:

Hello all.
Imagine you're coding a game in which you have a spaceship and want it shoots only once every time you press the spacebar. If you want to shoot again you have to release and press the spacebar again. For what I know MonoGame doesn't have a practical and easy way to handle the keyboard input for such a situation, so I coded this simple class:

using Microsoft.Xna.Framework.Input;

public class Keyboard
{
    static KeyboardState currentKeyState;
    static KeyboardState previousKeyState;

    public static KeyboardState GetState()
    {
        previousKeyState = currentKeyState;
        currentKeyState = Microsoft.Xna.Framework.Input.Keyboard.GetState();
        return currentKeyState;
    }

    public static bool IsPressed(Keys key)
    {
        return currentKeyState.IsKeyDown(key);
    }

    public static bool HasBeenPressed(Keys key)
    {
        return currentKeyState.IsKeyDown(key) && !previousKeyState.IsKeyDown(key);
    }
}

The class has a HasBeenPressed method that returns true only the first time a key is pressed.
Usage:

using Microsoft.Xna.Framework.Input;
...
        KeyboardState keyState = Keyboard.GetState();
        if (Keyboard.HasBeenPressed(Keys.Space))
        {
            Shoot(); // Shoot only once. To shoot again release/press the spacebar
        }
        if (Keyboard.IsPressed(Keys.Right))
        {
            MoveShipToRight(); // Move the ship to right while the right arrow key is pressed
        }

What do you think about it? Is there a simpler way to do the same?
I think future versions of MonoGame should implement a similar feature...

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