private void UpdateSteeringAngle(float deltaTime)
{
// TODO: Reduce max steering angle at high speeds.
const float MaxAngle = 0.5f;
const float SteeringRate = 3;
// We limit the amount of change per frame.
float change = SteeringRate * deltaTime;
float direction = 0;
if (_inputService.IsDown(Keys.A))
{
direction += 1;
}
if (_inputService.IsDown(Keys.D))
{
direction -= 1;
}
var gamePadState = _inputService.GetGamePadState(LogicalPlayerIndex.One);
direction -= gamePadState.ThumbSticks.Left.X;
if (direction != 0)
{
// Increase steering angle.
_steeringAngle = MathHelper.Clamp(_steeringAngle + direction * change, -MaxAngle, +MaxAngle);
}
else
{
// Steer back to neutral position (angle 0).
if (_steeringAngle > 0)
{
_steeringAngle = MathHelper.Clamp(_steeringAngle - change, 0, +MaxAngle);
}
else if (_steeringAngle < 0)
{
_steeringAngle = MathHelper.Clamp(_steeringAngle + change, -MaxAngle, 0);
}
// TODO: Maybe we steer back with half rate?
// (Pressing a button steers faster than not pressing a button?)
}
VehicleHelper.SetCarSteeringAngle(_steeringAngle, Vehicle.Wheels[0], Vehicle.Wheels[1], Vehicle.Wheels[2], Vehicle.Wheels[3]);
}
