public void ShouldCorrectlyRotateVectorByNegativeAngle()
{
// Arrage
var vector = new Vector2(0, -3);
var angle = Math.PI / -2;
// Act
var rotatedVector = Physic.RotateVector(vector, angle);
// Assert
var expectedVector = new Vector2(-3, 0);
Assert.AreEqual(rotatedVector.X, expectedVector.X, 0.0001);
Assert.AreEqual(rotatedVector.Y, expectedVector.Y, 0.0001);
}
public void ShouldCorrectlyRotateVector1()
{
// Arrage
var vector = new Vector2(10, 0);
var angle = Math.PI / 4;
// Act
var rotatedVector = Physic.RotateVector(vector, angle);
// Assert
var expectedVector = Vector2.Normalize(new Vector2(1, 1)) * vector.Length();
Assert.AreEqual(expectedVector.X, rotatedVector.X, 1e-6);
Assert.AreEqual(expectedVector.Y, rotatedVector.Y, 1e-6);
}
