/// <summary>
/// Checks the currently pressed keys and changes the acceleration vector accordingly
/// </summary>
private void ApplyAcceleration()
{
var shape = Shape.AsDynamicShape();
if (mA[0] == 1 && mA[1] == 0 && mA[2] == 0)
{
Force.ApplyForce(new Vec2F(-Constants.TAXI_ACCEL_X, 0f), shape);
taxiDirection = TaxiDirection.Left;
}
else if (mA[0] == 1 && mA[1] == 1 && mA[2] == 0)
{
Force.ApplyForce(new Vec2F(-Constants.TAXI_ACCEL_X, Constants.TAXI_ACCEL_Y), shape);
taxiDirection = TaxiDirection.LeftAndUp;
}
else if (mA[0] == 0 && mA[1] == 1 && mA[2] == 0)
{
Force.ApplyForce(new Vec2F(0f, Constants.TAXI_ACCEL_Y), shape);
taxiDirection = TaxiDirection.Up;
}
else if (mA[0] == 0 && mA[1] == 1 && mA[2] == 1)
{
Force.ApplyForce(new Vec2F(Constants.TAXI_ACCEL_X, Constants.TAXI_ACCEL_Y), shape);
taxiDirection = TaxiDirection.RightAndUp;
}
else if (mA[0] == 0 && mA[1] == 0 && mA[2] == 1)
{
Force.ApplyForce(new Vec2F(Constants.TAXI_ACCEL_X, 0f), shape);
taxiDirection = TaxiDirection.Right;
}
else if (mA[0] == 0 && mA[1] == 0 && mA[2] == 0)
{
taxiDirection = TaxiDirection.None;
}
Force.ApplyGravity(shape.AsDynamicShape());
}
public void ApplyGravityAppliesCorrectAcceleration()
{
Force.ApplyGravity(testShape);
testShape.Move();
//measure movement caused by ApplyGravity
var dX = Math.Abs(testShape.Position.X) - Math.Abs(Constants.GRAVITY_X);
var dY = Math.Abs(testShape.Position.Y) - Math.Abs(Constants.GRAVITY_Y);
Assert.IsTrue(((dX < AcceptableDeviance) && (dY < AcceptableDeviance)));
}
