public void Vector2dCloneWorks() { var v = new Vector2d(1, 2); var v2 = v.Clone(); v2.X = 3; Assert.NotEqual(v, v2); Assert.False(v.Equivalent(v2)); Assert.True(v.Equivalent(new Vector2d(1, 2))); }
public void Vector2dNormalizedWorks() { var v = new Vector2d(12, 23); var v2 = v.Normalized(); Assert.NotEqual(v, v2); Assert.True(v.Equivalent(new Vector2d(12, 23))); Assert.Equal(1, v.Normalized().Magnitude()); }
public void Vector2dDividesCorrectly() { var v = new Vector2d(2, 4); Assert.False(v == v / 1); Assert.False(v == v.Divide(1)); Assert.True(v.Equivalent(v / 1)); Assert.True(v.Equivalent(v.Divide(1))); Assert.True(new Vector2d(.5, .25).Equivalent(1 / v)); Assert.True(new Vector2d(.5, .25).Equivalent(v.DivideFrom(1))); Assert.True(new Vector2d(20, 40).Equivalent(v / .1)); Assert.True(new Vector2d(20, 40).Equivalent(v.Divide(.1))); }
public void Vector2dSubtractsCorrectly() { var v = new Vector2d(2, 3); Assert.False(v == v - 0); Assert.False(v == v.Subtract(0)); Assert.False(-v == v.SubtractFrom(0)); Assert.True(v.Equivalent(v - 0)); Assert.True(v.Equivalent(v.Subtract(0))); Assert.True((-v).Equivalent(0- v)); Assert.True((-v).Equivalent(v.SubtractFrom(0))); Assert.True((v - v).Equivalent(Vector2d.Zero)); Assert.True((v.Subtract(v)).Equivalent(Vector2d.Zero)); Assert.True((v - .1).Equivalent(new Vector2d(1.9, 2.9))); Assert.True((v.Subtract(.1)).Equivalent(new Vector2d(1.9, 2.9))); Assert.True((.1 - v).Equivalent(new Vector2d(-1.9, -2.9))); Assert.True((v.SubtractFrom(.1)).Equivalent(new Vector2d(-1.9, -2.9))); }
public void Vector2dAddsCorrectly() { var v = new Vector2d(2, 3); Assert.False(v == v + 0); Assert.False(v == v.Add(0)); Assert.True(v.Equivalent(v+0)); Assert.True(v.Equivalent(v.Add(0))); Assert.True((v + v).Equivalent(new Vector2d(4, 6))); Assert.True(v.Add(v).Equivalent(new Vector2d(4, 6))); Assert.True((v + .1).Equivalent(new Vector2d(2.1, 3.1))); Assert.True(v.Add(.1).Equivalent(new Vector2d(2.1, 3.1))); }
public void Vector2dApplyWorks() { var v = new Vector2d(1.11, 2.22); v.Apply(Math.Round); Assert.True(v.Equivalent(new Vector2d(1, 2))); v.Apply(val => { return val + 1; }); Assert.True(v.Equivalent(new Vector2d(2, 3))); }