public void Rotate_1Pi_Rotated180degrees()
{
var act = TestStruct.Rotate((Single)Math.PI);
var exp = new Velocity(-8.5f, -2.3f);
CloudBallAssert.AreEqual(exp, act);
}
public void Rotate_Minus135_71x71y()
{
var velocity = new Velocity(10, 0);
var angle = new Angle(-3 * Math.PI / 4d);
var act = velocity.Rotate(angle);
var exp = new Velocity(-Math.Sqrt(50), -Math.Sqrt(50));
CloudBallAssert.AreEqual(exp, act);
}
public void Rotate_100x0yPlus45_71x71y()
{
var velocity = new Velocity(10, 0);
var angle = new Angle(Math.PI / 4d);
var act = velocity.Rotate(angle);
var exp = new Velocity(Math.Sqrt(50), Math.Sqrt(50));
CloudBallAssert.AreEqual(exp, act);
}
