public void DotWithVector_WorksInBothDirections()
{
var vec = new Vector(4.5f, 2.7f);
var prod1 = Line1 * vec;
var prod2 = vec * Line1;
Assert.IsTrue(prod1 == prod2);
}
public void AdditionWithVector_WorksInBothDirections()
{
var vec = new Vector(3.2f, 5.3f);
var sum1 = Line1 + vec;
var sum2 = vec + Line1;
Assert.IsTrue(sum1 == sum2);
}
public Line(Vector start, Vector end)
{
this.Start = start;
this.End = end;
}
public virtual Vector PointOfIntersection2D(Line intersector)
{
var p = new Vector(-intersector.Y, intersector.X);
var h = ((-this.Start + intersector.Start) * p) / (this * p);
return this.Start + this * h;
}
public virtual Line PerpendicularThrough(Vector point)
{
throw new NotImplementedException("Not yet implemented.");
}
public virtual bool Intersects2D(Line intersector)
{
bool intersection = false;
var p = new Vector(-intersector.Y, intersector.X);
var h = ((-this.Start + intersector.Start) * p) / (this * p);
intersection = h >= 0 && h <= 1;
if (intersection)
{
p = new Vector(-this.Y, this.X);
h = ((-intersector.Start + this.Start) * p) / (intersector * p);
intersection = h >= 0 && h <= 1;
}
return intersection;
}
internal Vector Clamp(Vector minValues, Vector maxValues, out int bx, out int by, out int bz)
{
float nx = X, ny = Y, nz = Z;
bx = by = bz = 0;
if (X < minValues.X)
{
nx = minValues.X;
bx = -1;
}
else if (X > maxValues.X)
{
nx = maxValues.X;
bx = 1;
}
if (Y < minValues.Y)
{
ny = minValues.Y;
by = -1;
}
else if (Y > maxValues.Y)
{
ny = maxValues.Y;
by = 1;
}
if (Z < minValues.Z)
{
nz = minValues.Z;
bz = -1;
}
else if (Z > maxValues.Z)
{
nz = maxValues.Z;
bz = 1;
}
return new Vector(nx, ny, nz);
}
public Vector Subtract(Vector subtrahend)
{
return new Vector(this.X - subtrahend.X, this.Y - subtrahend.Y);
}
public bool Equals(Vector other)
{
if (other != null)
{
return this.GetHashCode() == other.GetHashCode();
}
return false;
}
public float Dot(Vector other)
{
return this.X * other.X + this.Y * other.Y + this.Z * other.Z;
}
public Vector Cross(Vector other)
{
var u = this;
var v = other;
return new Vector(
this.Y * other.Z - this.Z * other.Y,
this.Z * other.X - this.X * other.Z,
this.X * other.Y - this.Y * other.X);
}
public Vector Add(Vector addend)
{
return new Vector(this.X + addend.X, this.Y + addend.Y);
}
public void SubtractionWithVector_WorksInBothDirections()
{
var vec = new Vector(3.5f, 2.3f);
var diff1 = Line1 - vec;
var diff2 = vec - Line1;
Assert.IsTrue(diff1 == -diff2);
}
public void Render(Graphics g, Vector pos)
{
ToRender.Render(g, pos);
}
public void EmptyConstructor_ReturnsZeroVector()
{
var zero = new Vector();
Assert.IsTrue(zero.X == 0 && zero.Y == 0 && zero.Length == 0);
}
public void Setup()
{
this.Vector1 = new Vector(2.5f, 3.6f);
this.Vector2 = new Vector(1.3f, 4.2f);
}