public static void UnitTest()
{
Vec2 testVec = new Vec2(2, 4);
Vec2 testVec2 = new Vec2(3, 4);
float tempFloat = 0;
Vec2 temp = testVec + testVec2;
Console.WriteLine("Addition correct?: " + (Math.Abs(temp.x - 5) < 0.01f && Math.Abs(temp.y - 8) < 0.01f));
temp = testVec - testVec2;
Console.WriteLine("Substraction correct?: " + (Math.Abs(temp.x + 1) < 0.01f && Math.Abs(temp.y) < 0.01f));
temp = 2 * testVec;
Console.WriteLine("Multiplication on left correct?: " + (Math.Abs(temp.x - 4) < 0.01f && Math.Abs(temp.y - 8) < 0.01f));
temp = testVec * 2;
Console.WriteLine("Multiplication on right correct?: " + (Math.Abs(temp.x - 4) < 0.01f && Math.Abs(temp.y - 8) < 0.01f));
tempFloat = testVec2.Length();
Console.WriteLine("Length correct?: " + (Math.Abs(tempFloat - 5) < 0.01f));
testVec2.Normalize();
Console.WriteLine("Normalize correct?: " + (Math.Abs(testVec2.Length() - 1) < 0.01f && Math.Abs(testVec2.x - 0.6f) < 0.01f && Math.Abs(testVec2.y - 0.8f) < 0.01f));
testVec2 = new Vec2(3, 4);
temp = testVec2.Normalized();
Console.WriteLine("Normalized correct?: " + (Math.Abs(temp.Length() - 1) < 0.01f && Math.Abs(temp.x - 0.6f) < 0.01f && Math.Abs(temp.y - 0.8f) < 0.01f));
testVec.SetXY(15, 2);
Console.WriteLine("SetXY correct?: " + (Math.Abs(testVec.x - 15) < 0.01f && Math.Abs(testVec.y - 2) < 0.01f));
Console.WriteLine("Deg2Rad correct?: " + (Math.Abs(Deg2Rad(180) - Math.PI) < 0.01f));
Console.WriteLine("Rad2Deg correct?: " + (Math.Abs(Rad2Deg((float)Math.PI) - 180) < 0.01f));
testVec = GetUnitVectorDeg(180);
Console.WriteLine("GetUnitVectorDeg correct?: " + (Math.Abs(testVec.x + 1) < 0.01f && Math.Abs(testVec.y) < 0.01f));
testVec = GetUnitVectorRad((float)Math.PI);
Console.WriteLine("GetUnitVectorRad correct?: " + (Math.Abs(testVec.x + 1) < 0.01f && Math.Abs(testVec.y) < 0.01f));
Console.WriteLine("RandomUnitVector correct?: " + (Math.Abs(RandomUnitVector().Length() - 1) < 0.01f));
testVec = RandomUnitVector();
testVec.SetAngleDegrees(270);
Console.WriteLine("SetAngleDegrees correct?: " + (Math.Abs(testVec.y + 1) < 0.01f && Math.Abs(testVec.x) < 0.01f));
Console.WriteLine("GetAngleDegrees correct?: " + (Math.Abs(testVec.GetAngleDegrees() - 270) < 0.01f));
testVec.SetAngleRadians((float)Math.PI);
Console.WriteLine("SetAngleRadians correct?: " + (Math.Abs(testVec.x + 1) < 0.01f && Math.Abs(testVec.y) < 0.01f));
Console.WriteLine("GetAngleRadians correct?: " + (Math.Abs(testVec.GetAngleRadians() - Math.PI) < 0.01f));
testVec.RotateDegrees(90);
Console.WriteLine("RotateDegrees correct?: " + (Math.Abs(testVec.GetAngleDegrees() - 270) < 0.01f));
testVec = RandomUnitVector();
testVec.SetAngleDegrees(180);
testVec.RotateRadians((float)Math.PI / 2);
Console.WriteLine("RotateRadians correct?: " + (Math.Abs(testVec.GetAngleRadians() - (3 * Math.PI) / 2) < 0.01f));
testVec = new Vec2(2, 4);
testVec2 = new Vec2(3, 4);
Console.WriteLine("Dot correct?: " + ((testVec.Dot(testVec2) - 22) < 0.01f));
Vec2 testVecNormal = testVec2.Normal();
Console.WriteLine("Normal correct?: " + (Math.Abs(testVecNormal.x + 0.8f) < 0.01f && Math.Abs(testVecNormal.y - 0.6f) < 0.01f && Math.Abs(testVecNormal.Length() - 1) < 0.01f));
testVec.Reflect(1, testVec2);
Console.WriteLine("Reflect correct?: " + (Math.Abs(testVec.x - 3.28f) < 0.01f && Math.Abs(testVec.y - 3.04f) < 0.01f));
}
public void Reflect(float COR, Vec2 other)
{
this = this - ((1 + COR) * (Dot(other.Normal()) * other.Normal()));
}