public void ProcessControls(GameTime gameTime)
{
KeyboardState keyboardState = Keyboard.GetState();
if (!_isBlocked)
{
bool isJumpKeyPressed = keyboardState.IsKeyDown(Keys.Up) || keyboardState.IsKeyDown(Keys.Space);
bool wasJumpKeyPressed = _previousKeyboardState.IsKeyDown(Keys.Up) || _previousKeyboardState.IsKeyDown(Keys.Space);
if (isJumpKeyPressed && !wasJumpKeyPressed)
{
if (_trex.State != TrexState.Jumping)
{
_trex.BeginJump();
}
}
// if we check _previousKeyboardState.IsKeyDown
// Cancel Jump will only be called on the frame the keyboard is released
else if (!isJumpKeyPressed && _trex.State == TrexState.Jumping)
{
_trex.CancelJump();
}
else if (keyboardState.IsKeyDown(Keys.Down))
{
if (_trex.State == TrexState.Jumping || _trex.State == TrexState.Falling)
{
_trex.Drop();
}
else
{
_trex.Duck();
}
}
else if (_trex.State == TrexState.Ducking && !keyboardState.IsKeyDown(Keys.Down))
{
_trex.Getup();
}
}
// keyboardState is a struct, so it won't be referencing the same instance
_previousKeyboardState = keyboardState;
_isBlocked = false;
}