public ColorF(float r, float g, float b)
{
this.R = FlaiMath.Clamp((byte)(r * 255), byte.MinValue, byte.MaxValue);
this.G = FlaiMath.Clamp((byte)(g * 255), byte.MinValue, byte.MaxValue);
this.B = FlaiMath.Clamp((byte)(b * 255), byte.MinValue, byte.MaxValue);
this.A = 255;
}
public SerializableColorF(float r, float g, float b, float a)
{
this.R = FlaiMath.Clamp((byte)(r * 255), byte.MinValue, byte.MaxValue);
this.G = FlaiMath.Clamp((byte)(g * 255), byte.MinValue, byte.MaxValue);
this.B = FlaiMath.Clamp((byte)(b * 255), byte.MinValue, byte.MaxValue);
this.A = FlaiMath.Clamp((byte)(a * 255), byte.MinValue, byte.MaxValue);
}
public static Direction2D FromRotation(float degrees, Direction2D startDirection = Direction2D.Right) //
{
degrees = FlaiMath.RealModulus(degrees, 360);
int step = (int)FlaiMath.Round(degrees / 90);
return((Direction2D)FlaiMath.RealModulus((int)(step + startDirection), 4));
}
public static Vector2 NormalizeOrZero(Vector2i value)
{
if (value.X == 0 && value.Y == 0)
{
return(Vector2.zero);
}
return(FlaiMath.Normalize(value));
}
public static Vector2d Rotate(Vector2d point, double radians)
{
double cosRadians = FlaiMath.Cos(radians);
double sinRadians = FlaiMath.Sin(radians);
return(new Vector2d(
point.X * cosRadians - point.Y * sinRadians,
point.X * sinRadians + point.Y * cosRadians));
}
public static Vector2 Normalize(Vector2i value)
{
int sum = value.X * value.X + value.Y * value.Y;
float divider = 1f / FlaiMath.Sqrt(sum);
return(new Vector2 {
x = value.X * divider, y = value.Y * divider
});
}
public static Vector2f Rotate(Vector2f point, float radians)
{
float cosRadians = FlaiMath.Cos(radians * Mathf.Deg2Rad);
float sinRadians = FlaiMath.Sin(radians * Mathf.Deg2Rad);
return(new Vector2(
point.X * cosRadians - point.Y * sinRadians,
point.X * sinRadians + point.Y * cosRadians));
}
public static ColorF operator -(ColorF a, ColorF b)
{
return(new ColorF
{
R = (byte)FlaiMath.Max(0, a.R - b.R),
G = (byte)FlaiMath.Max(0, a.G - b.G),
B = (byte)FlaiMath.Max(0, a.B - b.B),
A = (byte)FlaiMath.Max(0, a.A - b.A),
});
}
public static ColorF operator +(ColorF a, ColorF b)
{
return(new ColorF
{
R = (byte)FlaiMath.Min(255, a.R + b.R),
G = (byte)FlaiMath.Min(255, a.G + b.G),
B = (byte)FlaiMath.Min(255, a.B + b.B),
A = (byte)FlaiMath.Min(255, a.A + b.A),
});
}
public static float MinimumDistance(Segment2D segment, Circle circle)
{
if (Segment2D.Intersects(segment, circle))
{
return(0);
}
// okay this Max *should be* unnecessary, but lets keep it just for sure
return(FlaiMath.Max(0, Segment2D.MinimumDistance(segment, circle.Position) - circle.Radius));
}
// is this accurate? could be...
public static float MaximumDistance(Segment2D segment, RectangleF rectangle)
{
if (Segment2D.Intersects(segment, rectangle))
{
return(0);
}
return(FlaiMath.Max(
Segment2D.MaximumDistance(segment, rectangle.TopLeft), Segment2D.MaximumDistance(segment, rectangle.TopRight),
Segment2D.MaximumDistance(segment, rectangle.BottomLeft), Segment2D.MaximumDistance(segment, rectangle.BottomRight)));
}
public static float Lerp(LerpType lerpType, float value1, float value2, float amount)
{
if (lerpType == LerpType.Lerp)
{
return(FlaiMath.Lerp(value1, value2, amount));
}
else if (lerpType == LerpType.Instant)
{
return(value2);
}
return(FlaiMath.SmoothStep(value1, value2, amount));
}
// radians
public static float ShortestAngleDistance(float angle1, float angle2)
{
angle1 = FlaiMath.WrapAngle(angle1);
angle2 = FlaiMath.WrapAngle(angle2);
if (angle1 <= angle2)
{
return((angle2 - angle1) <= FlaiMath.Pi ? (angle2 - angle1) : (-angle1 - (FlaiMath.TwoPi - angle2)));
}
else // angle1 > angle2
{
return((angle1 - angle2) <= FlaiMath.Pi ? -(angle1 - angle2) : (angle2 + (FlaiMath.TwoPi - angle1)));
}
}
public static float Round(this RoundingOptions roundingOptions, float value)
{
switch (roundingOptions)
{
case RoundingOptions.Default:
return((int)value);
case RoundingOptions.Floor:
return(FlaiMath.Floor(value));
case RoundingOptions.Ceiling:
return(FlaiMath.Ceiling(value));
case RoundingOptions.Round:
return(FlaiMath.Round(value));
default:
throw new ArgumentException("roundingOptions");
}
}
public static Vector2f ClampY(Vector2f vec, float min, float max)
{
Ensure.True(min <= max);
vec.Y = FlaiMath.Clamp(vec.Y, min, max);
return(vec);
}
public static Vector2f Clamp(Vector2f value, Vector2f min, Vector2f max)
{
return(new Vector2f(FlaiMath.Clamp(value.X, min.X, max.X), FlaiMath.Clamp(value.Y, min.Y, max.Y)));
}
public static Vector2f Max(Vector2f value1, Vector2f value2, Vector2f value3, Vector2f value4)
{
return(new Vector2f(FlaiMath.Max(value1.X, value2.X, value3.X, value4.X), FlaiMath.Max(value1.Y, value2.Y, value3.Y, value4.Y)));
}
public static Vector2f Min(Vector2f value1, Vector2f value2, Vector2f value3)
{
return(new Vector2f(FlaiMath.Min(value1.X, value2.X, value3.X), FlaiMath.Min(value1.Y, value2.Y, value3.Y)));
}
public static Vector2f Abs(Vector2f value)
{
return(new Vector2f(FlaiMath.Abs(value.X), FlaiMath.Abs(value.Y)));
}
public static float Distance(Vector2f value1, Vector2f value2)
{
return(FlaiMath.Sqrt(Vector2f.DistanceSquared(value1, value2)));
}
public static Vector2f GetAngleVectorDeg(float degrees)
{
return(FlaiMath.GetAngleVector(FlaiMath.ToRadians(degrees)));
}
public static float GetAngleDeg(Vector2f vector)
{
return(FlaiMath.ToDegrees(FlaiMath.GetAngle(vector)));
}
public static float WrapAngleDeg(float angle)
{
return(FlaiMath.ToDegrees(FlaiMath.WrapAngle(FlaiMath.ToRadians(angle))));
}
public byte NextByte()
{
return((byte)FlaiMath.Round(base.NextDouble() * 255)); // 255 or 256?
}
public static double SmoothStep(double value1, double value2, double amount)
{
double num = FlaiMath.Clamp(amount, 0f, 1f);
return(FlaiMath.Lerp(value1, value2, num * num * (3f - 2f * num)));
}
public static Vector2f SmoothStep(Vector2f current, Vector2f target, float amount)
{
return(new Vector2f {
X = FlaiMath.SmoothStep(current.X, target.X, amount), Y = FlaiMath.SmoothStep(current.Y, target.Y, amount)
});
}
// deg
public static float AngleLerp(float angle1, float angle2, float amount)
{
return(angle1 + FlaiMath.ShortestAngleDistanceDeg(angle1, angle2) * amount);
}
public static Vector2d GetAngleVectorDeg(double degrees)
{
return(FlaiMath.GetAngleVector(FlaiMath.ToRadians(degrees)));
}
public byte NextByte(byte min, byte max)
{
return((byte)FlaiMath.Round(min + base.NextDouble() * (max - min))); // 255 or 256?
}
// deg
public static float AngleSmoothstep(float angle1, float angle2, float amount)
{
amount = amount * amount * (3f - 2f * amount);
return(angle1 + FlaiMath.ShortestAngleDistanceDeg(angle1, angle2) * amount);
}
