public static bool EqualsWithTolerance(Vector3 left, Vector3 right, float tolerance = EngineMath.TOLERANCE_FLOAT_POSITIVE)
{
return
(EngineMath.EqualsWithTolerance(left.X, right.X, tolerance) &&
EngineMath.EqualsWithTolerance(left.Y, right.Y, tolerance) &&
EngineMath.EqualsWithTolerance(left.Z, right.Z, tolerance));
}
public bool EqualsWithTolerance(Color4 other)
{
return
(EngineMath.EqualsWithTolerance(Red, other.Red) &&
EngineMath.EqualsWithTolerance(Green, other.Green) &&
EngineMath.EqualsWithTolerance(Blue, other.Blue) &&
EngineMath.EqualsWithTolerance(Alpha, other.Alpha));
}
/// <summary>
/// Calculates the intersection point to the intersection seen from local origin position.
/// </summary>
/// <param name="other">The ray to calculate intersection with</param>
public Tuple <bool, Vector2> Intersect(Ray2D other)
{
//Intersection method taken from http://stackoverflow.com/questions/4543506/algorithm-for-intersection-of-2-lines
var a1 = this.A;
var b1 = this.B;
var c1 = this.C;
var a2 = other.A;
var b2 = other.B;
var c2 = other.C;
var delta = a1 * b2 - a2 * b1;
if (EngineMath.EqualsWithTolerance(delta, 0))
{
return(Tuple.Create(false, Vector2.Zero));
}
var intersectionX = (b2 * c1 - b1 * c2) / delta;
var intersectionY = (a1 * c2 - a2 * c1) / delta;
return(Tuple.Create(true, new Vector2(intersectionX, intersectionY)));
}
/// <summary>
/// Initializes a new instance of the <see cref="MovementSpeed"/> struct.
/// </summary>
/// <param name="maxSpeed">The maximum speed in m/s.</param>
/// <param name="acceleration">The acceleration in m/s².</param>
/// <param name="deceleration">The deceleration in m/s².</param>
public MovementSpeed(float maxSpeed, float acceleration, float deceleration)
{
MaximumSpeed = EngineMath.ForcePositive(maxSpeed);
Acceleration = EngineMath.ForcePositive(acceleration);
Deceleration = EngineMath.ForceNegative(deceleration);
}
/// <summary>
/// Initializes a new instance of the <see cref="MovementSpeed"/> struct.
/// </summary>
/// <param name="maxSpeed">The maximum speed in m/s.</param>
/// <param name="acceleration">The acceleration in m/s².</param>
public MovementSpeed(float maxSpeed, float acceleration)
{
MaximumSpeed = maxSpeed;
Acceleration = EngineMath.ForcePositive(acceleration);
Deceleration = 0f;
}
