public void Vector2dLengthWorks()
{
var v = new Vector2d(2, 2);
double length = v.Length();
Assert.Equal(2.83, Math.Round(length, 2));
}
public void Vector2dMagnitudeWorks()
{
var v = new Vector2d(2, 2);
double mag = v.Magnitude();
Assert.Equal(2.83, Math.Round(mag, 2));
}
/// <summary>
/// Returns a Vector2d that's reflected over the normal.
/// </summary>
/// <param name="normal">The normal to reflect over.</param>
/// <returns>Reflected vector.</returns>
public Vector2d Reflect(Vector2d normal)
{
var normalUnit = normal.Unit();
var num = Dot(normalUnit) * 2;
return new Vector2d(X - num * normalUnit.X, Y - num * normalUnit.Y);
}
public void Vector2DistanceWorks()
{
var v1 = new Vector2d(1, 1);
var v2 = new Vector2d(13, 8);
Assert.True(v1.Distance(v2).Equivalent(new Vector2d(12, 7)));
}
public void Vector2dDotProductWorks()
{
var v = new Vector2d(3, 4);
var v2 = new Vector2d(8, 7);
Assert.Equal(v.Dot(v2), 52);
}
public Player()
{
// Every player that is created will start at 100, 100
Position = new Vector2d(100, 100);
// With a rotation of 0
Rotation = 0;
// Just like the client, we pass in an array of IMoveables, in this case just "us" and our MovementController will move us at 100 pixels per second.
MovementController = new LinearMovementController(new IMoveable[] { this }, 100);
}
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());
}
/// <summary>
/// Returns a Vector2d that represents the current Vector2d rotated around the provided point and angle.
/// </summary>
/// <param name="point">Point to rotate around.</param>
/// <param name="angle">How far to rotate around the point.</param>
/// <param name="precision">The precision of the resulting Vector2d's X and Y components. Defaults to 2.</param>
/// <returns>The rotated Vector2d</returns>
public Vector2d RotateAround(Vector2d point, double angle, int precision = 2)
{
var ca = Math.Cos(angle);
var sa = Math.Sin(angle);
return new Vector2d(
Math.Round(ca * (X - point.X) - sa * (Y - point.Y) + point.X, precision),
Math.Round(sa * (X - point.X) + ca * (Y - point.Y) + point.Y, precision)
);
}
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 MoveTo(Vector2d from, Vector2d to)
{
double distance = from.Distance(to).Length();
TimeSpan duration = new TimeSpan(0,0,(int)(distance / Speed));
this.From = from;
this.To = to;
this.Duration = duration;
this.Elapsed = TimeSpan.Zero;
if (!_isPlaying)
{
this.Play();
}
else
{
this.Restart();
}
}
public void GetMinMaxProjectionsWorks()
{
var axis = new Vector2d(8, 0);
var vertices = new Vector2d[] {
new Vector2d(2, 0), // TL
new Vector2d(5, 3), // TR
new Vector2d(0, -2), // BL
new Vector2d(3, 5) // BR
};
double expectedMax = vertices[1].ProjectOnto(axis).Dot(axis);
double expectedMin = vertices[2].ProjectOnto(axis).Dot(axis);
var maxmin = Vector2dHelpers.GetMinMaxProjections(axis, vertices);
Assert.True(maxmin.Min == expectedMin);
Assert.True(maxmin.Max == expectedMax);
}
public static MinMax GetMinMaxProjections(Vector2d axis, Vector2d[] vertices)
{
double min = vertices[0].ProjectOnto(axis).Dot(axis);
double max = min;
for(int i = 1;i < vertices.Length;i++)
{
var vertex = vertices[i];
double value = vertex.ProjectOnto(axis).Dot(axis);
if (value < min)
{
min = value;
}
else if (value > max)
{
max = value;
}
}
return new MinMax(min, max);
}
/// <summary>
/// Determines if the current BoundingRectangle is intersecting the provided BoundingRectangle.
/// </summary>
/// <param name="obj">BoundingRectangle to check intersection with.</param>
/// <returns>Whether the BoundingRectangle intersects the BoundingRectangle.</returns>
public override bool Intersects(BoundingRectangle obj)
{
if (Rotation == 0 && obj.Rotation == 0)
{
Vector2d myTopLeft = TopLeft,
myBotRight = BotRight,
theirTopLeft = obj.TopLeft,
theirBotRight = obj.BotRight;
return theirTopLeft.X <= myBotRight.X && theirBotRight.X >= myTopLeft.X && theirTopLeft.Y <= myBotRight.Y && theirBotRight.Y >= myTopLeft.Y;
}
else if (obj.Position.Distance(Position).Magnitude() <= obj.Size.Radius + Size.Radius) // Check if we're somewhat close to the object that we might be colliding with
{
var axisList = new Vector2d[] { TopRight - TopLeft, TopRight - BotRight, obj.TopLeft - obj.BotLeft, obj.TopLeft - obj.TopRight };
var myCorners = Corners();
var theirCorners = obj.Corners();
foreach (var axi in axisList)
{
var myProjections = Vector2dHelpers.GetMinMaxProjections(axi, myCorners);
var theirProjections = Vector2dHelpers.GetMinMaxProjections(axi, theirCorners);
// No collision
if (theirProjections.Max < myProjections.Min || myProjections.Max < theirProjections.Min)
{
return false;
}
}
return true;
}
return false;
}
/// <summary>
/// Returns a Vector2d that is the result of adding the X and Y of this Vector2d to the X and Y of the provided Vector2d.
/// </summary>
/// <param name="v1">The Vector2d to add.</param>
/// <returns>The result of this Vector2d added to the provided Vector2d.</returns>
public Vector2d Add(Vector2d v1)
{
return this + v1;
}
public void Tween(Vector2d current, Vector2d destination)
{
game.UserManager[Context.ConnectionId].MovementController.MoveTo(current, destination);
}
private void Changed(Vector2d vector)
{
if (this.OnChange != null)
{
this.OnChange(this, vector);
}
}
public Vector2dTweener(Vector2d current, double speed, Player player)
: base(new [] { player })
{
Speed = speed;
Current = current;
}
/// <summary>
/// Calculates the distance between the current vector and the provided one.
/// </summary>
/// <param name="v1">The vector to calculate the distance to.</param>
/// <returns>The distance from this vector to the provided vector.</returns>
public Vector2d Distance(Vector2d v1)
{
return new Vector2d(Math.Abs(v1.X - X), Math.Abs(v1.Y - Y));
}
/// <summary> /// Determines if the current bounded object contains the provided Vector2d. /// </summary> /// <param name="point">A point to check containment on.</param> /// <returns>Whether the bounds contains the point.</returns> public abstract bool Contains(Vector2d point);
/// <summary>
/// Creates a new instance of BoundingRectangle.
/// </summary>
/// <param name="position">Initial Position of the BoundingRectangle.</param>
/// <param name="size">Initial Size of the BoundingRectangle.</param>
public BoundingRectangle(Vector2d position, Size2d size) : base(position)
{
Size = size;
}
/// <summary>
/// Returns a Vector2d that is the result of subtracting the X and Y of this Vector2d by the X and Y of the provided Vector2d.
/// </summary>
/// <param name="val">The Vector2d to subtract.</param>
/// <returns>The result of the provided vector subtracted by this vector.</returns>
public Vector2d Subtract(Vector2d v1)
{
return this - v1;
}
/// <summary>
/// Returns a Vector2d that represents the current Vector2d projected onto the provided Vector2d.
/// </summary>
/// <param name="v">Source vector</param>
/// <returns>The projection vector.</returns>
public Vector2d ProjectOnto(Vector2d v)
{
return (this.Dot(v) / v.Dot(v)) * v;
}
/// <summary>
/// Determines whether this Vector2d has the same X and Y of the provided Vector2d.
/// </summary>
/// <param name="v1">The Vector2d to compare the current Vector2d to.</param>
/// <returns>Whether or not this Vector2d is equivalent to the provided vector2d.</returns>
public bool Equivalent(Vector2d v1)
{
return v1.X == X && v1.Y == Y;
}
/// <summary>
/// Returns a Vector2d that is the result of dividing the X and Y of this Vector2d from the X and Y of the provided Vector2d.
/// </summary>
/// <param name="val">The Vector2d to divide from.</param>
/// <returns>The result of the Vector2d divided from the provided Vector2d.</returns>
public Vector2d DivideFrom(Vector2d val)
{
return val / this;
}
/// <summary>
/// Returns a Vector2d that is the result of dividing the X and Y of this Vector2d by the X and Y of the provided Vector2d.
/// </summary>
/// <param name="val">The Vector2d to divide.</param>
/// <returns>The result of this Vector2d divided by the provided number.</returns>
public Vector2d Divide(Vector2d val)
{
return this / val;
}
/// <summary>
/// Returns a Vector2d that is the result of multiplying the X and Y of this Vector2d by the X and Y of the provided Vector2d
/// </summary>
/// <param name="v1">The Vector2d to multiply.</param>
/// <returns>The result of this Vector2d multiplied by the provided Vector2d.</returns>
public Vector2d Multiply(Vector2d v1)
{
return this * v1;
}
/// <summary>
/// Determines if the current BoundingRectangle contains the provided Vector2d.
/// </summary>
/// <param name="point">A point to check containment on.</param>
/// <returns>Whether the BoundingRectangle contains the point.</returns>
public override bool Contains(Vector2d point)
{
double savedRotation = Rotation;
if (Rotation != 0)
{
Rotation = 0;
point = point.RotateAround(Position, -savedRotation);
}
Vector2d myTopLeft = TopLeft,
myBotRight = BotRight;
Rotation = savedRotation;
return point.X <= myBotRight.X && point.X >= myTopLeft.X && point.Y <= myBotRight.Y && point.Y >= myTopLeft.Y;
}
/// <summary>
/// Returns a Size2d that is the result of dividing the Width and Height of this Size2d from the X and Y of a Vector2d.
/// </summary>
/// <param name="v1">The Vector2d to divide from.</param>
/// <returns>The result of this Size2d divided from the provided Vector2d.</returns>
public Size2d DivideFrom(Vector2d v1)
{
return v1 / this;
}
/// <summary>
/// Initiates a bounded object.
/// </summary>
/// <param name="position">The initial position of the bounds2d</param>
public Bounds2d(Vector2d position)
{
Position = position;
Rotation = 0;
}
/// <summary>
/// Calculates the Dot product of the current vector and the one provided
/// </summary>
/// <param name="v1">Vector to dot product with</param>
/// <returns>Dot product</returns>
public double Dot(Vector2d v1)
{
return v1.X * X + v1.Y * Y;
}