public static WVec LerpQuadratic(WVec a, WVec b, WAngle pitch, int mul, int div)
{
// Start with a linear lerp between the points
var ret = Lerp(a, b, mul, div);
if (pitch.Angle == 0)
{
return(ret);
}
// Add an additional quadratic variation to height
// Uses decimal to avoid integer overflow
var offset = (int)((decimal)(b - a).Length * pitch.Tan() * mul * (div - mul) / (1024 * div * div));
return(new WVec(ret.X, ret.Y, ret.Z + offset));
}
public static WPos LerpQuadratic(WPos a, WPos b, WAngle pitch, int mul, int div)
{
// Start with a linear lerp between the points
var ret = Lerp(a, b, mul, div);
if (pitch.Angle == 0)
{
return(ret);
}
// Add an additional quadratic variation to height
// Uses decimal to avoid integer overflow
var offset = (decimal)(b - a).Length * pitch.Tan() * mul * (div - mul) / (1024 * div * div);
var clampedOffset = (int)(offset + (decimal)ret.Z).Clamp <decimal>((decimal)int.MinValue, (decimal)int.MaxValue);
return(new WPos(ret.X, ret.Y, clampedOffset));
}
public static WPos LerpQuadratic(WPos a, WPos b, WAngle pitch, int mul, int div)
{
// Start with a linear lerp between the points
var ret = Lerp(a, b, mul, div);
if (pitch.Angle == 0)
{
return(ret);
}
// Add an additional quadratic variation to height
// Attempts to avoid integer overflow by keeping the intermediate variables reasonably sized
var offset = (int)(((((((long)(b - a).Length * mul) / div) * (div - mul)) / div) * pitch.Tan()) / 1024);
return(new WPos(ret.X, ret.Y, ret.Z + offset));
}
public static WVec LerpQuadratic(WVec a, WVec b, WAngle pitch, int mul, int div)
{
// Start with a linear lerp between the points
var ret = Lerp(a, b, mul, div);
if (pitch.Angle == 0)
return ret;
// Add an additional quadratic variation to height
// Uses fp to avoid integer overflow
var offset = (int)((float)((float)(b - a).Length*pitch.Tan()*mul*(div - mul)) / (float)(1024*div*div));
return new WVec(ret.X, ret.Y, ret.Z + offset);
}
public static WPos LerpQuadratic(WPos a, WPos b, WAngle pitch, int mul, int div)
{
// Start with a linear lerp between the points
var ret = Lerp(a, b, mul, div);
if (pitch.Angle == 0)
return ret;
// Add an additional quadratic variation to height
// Attempts to avoid integer overflow by keeping the intermediate variables reasonably sized
var offset = (int)(((((((long)(b - a).Length * mul) / div) * (div - mul)) / div) * pitch.Tan()) / 1024);
return new WPos(ret.X, ret.Y, ret.Z + offset);
}
