private static VInt3 ClosestPoint(ref VInt3 point, ref VInt3 lineStart, ref VInt3 lineDir, int lineLen)
{
long num = VInt3.DotXZLong(point - lineStart, lineDir);
num = IntMath.Clamp(num, 0L, (long)(lineLen * 1000));
return(IntMath.Divide(lineDir, num, 1000000L) + lineStart);
}
public static VInt3 NearestPointStrictXZ(ref VInt3 lineStart, ref VInt3 lineEnd, ref VInt3 point)
{
VInt3 rhs = lineEnd - lineStart;
long max = rhs.sqrMagnitudeLong2D;
if (max == 0)
{
return(lineStart);
}
long m = IntMath.Clamp(VInt3.DotXZLong(point - lineStart, rhs), 0L, max);
return(IntMath.Divide(rhs, m, max) + lineStart);
}
public static VInt3 NearestPointStrict(ref VInt3 lineStart, ref VInt3 lineEnd, ref VInt3 point)
{
VInt3 rhs = lineEnd - lineStart;
long sqrMagnitudeLong = rhs.sqrMagnitudeLong;
if (sqrMagnitudeLong == 0)
{
return(lineStart);
}
long m = IntMath.Clamp(VInt3.DotLong(point - lineStart, rhs), 0L, sqrMagnitudeLong);
return(IntMath.Divide(rhs, m, sqrMagnitudeLong) + lineStart);
}
public static VInt2 ClosestPointOnSegment(VInt2 lineStart, VInt2 lineEnd, VInt2 point)
{
var dir = lineEnd - lineStart;
long sqrMagn = dir.sqrMagnitudeLong;
if (sqrMagn <= 1)
{
return(lineStart);
}
long factor = VInt2.DotLong(point - lineStart, dir) / sqrMagn;
return(lineStart + dir * (int)IntMath.Clamp(0, 1000, factor));
}
public static VInt3 NearestPointStrictXZ(ref VInt3 lineStart, ref VInt3 lineEnd, ref VInt3 point)
{
VInt3 vInt = lineEnd - lineStart;
long sqrMagnitudeLong2D = vInt.sqrMagnitudeLong2D;
if (sqrMagnitudeLong2D == 0L)
{
return(lineStart);
}
long num = VInt3.DotXZLong(point - lineStart, vInt);
num = IntMath.Clamp(num, 0L, sqrMagnitudeLong2D);
return(IntMath.Divide(vInt, num, sqrMagnitudeLong2D) + lineStart);
}
protected override void Set(int value) => this.impl_ = IntMath.Clamp(this.Min, value, this.Max);