internal static PredictionOutput GetPositionOnPath(PredictionInput input, List <Vector2> path, float speed = -1)
{
speed = (Math.Abs(speed - (-1)) < float.Epsilon) ? input.Unit.MoveSpeed : speed;
if (path.Count <= 1)
{
return(new PredictionOutput
{
Input = input,
UnitPosition = input.Unit.ServerPosition,
CastPosition = input.Unit.ServerPosition,
Hitchance = HitChance.VeryHigh
});
}
var pLength = path.PathLength();
//Skillshots with only a delay
if (pLength >= input.Delay * speed - input.RealRadius && input.Speed == float.MaxValue)
{
var tDistance = input.Delay * speed - input.RealRadius;
for (var i = 0; i < path.Count - 1; i++)
{
var a = path[i];
var b = path[i + 1];
var d = a.Distance(b);
if (d >= tDistance)
{
var direction = (b - a).Normalized();
var cp = a + direction * tDistance;
var p = a +
direction *
((i == path.Count - 2)
? Math.Min(tDistance + input.RealRadius, d)
: (tDistance + input.RealRadius));
return(new PredictionOutput
{
Input = input,
CastPosition = cp.To3D(),
UnitPosition = p.To3D(),
Hitchance =
PathTracker.GetCurrentPath(input.Unit).Time < 0.1d ? HitChance.VeryHigh : HitChance.High,
});
}
tDistance -= d;
}
}
//Skillshot with a delay and speed.
if (pLength >= input.Delay * speed - input.RealRadius && Math.Abs(input.Speed - float.MaxValue) > float.Epsilon)
{
path = path.CutPath(Math.Max(0, input.Delay * speed - input.RealRadius));
var tT = 0f;
for (var i = 0; i < path.Count - 1; i++)
{
var a = path[i];
var b = path[i + 1];
var tB = a.Distance(b) / speed;
var direction = (b - a).Normalized();
a = a - speed * tT * direction;
var sol = Geometry.VectorMovementCollision(a, b, speed, input.From.To2D(), input.Speed, tT);
var t = (float)sol[0];
var pos = (Vector2)sol[1];
if (pos.IsValid() && t >= tT && t <= tT + tB)
{
var p = pos + input.RealRadius * direction;
if (input.Type == SkillshotType.SkillshotLine)
{
var alpha = (input.From.To2D() - p).AngleBetween(a - b);
if (alpha > 30 && alpha < 180 - 30)
{
var beta = (float)Math.Asin(input.RealRadius / p.Distance(input.From));
var cp1 = input.From.To2D() + (p - input.From.To2D()).Rotated(beta);
var cp2 = input.From.To2D() + (p - input.From.To2D()).Rotated(-beta);
pos = cp1.Distance(pos, true) < cp2.Distance(pos, true) ? cp1 : cp2;
}
}
return(new PredictionOutput
{
Input = input,
CastPosition = pos.To3D(),
UnitPosition = p.To3D(),
Hitchance =
PathTracker.GetCurrentPath(input.Unit).Time < 0.1d ? HitChance.VeryHigh : HitChance.High,
});
}
tT += tB;
}
}
var position = path.Last();
return(new PredictionOutput
{
Input = input,
CastPosition = position.To3D(),
UnitPosition = position.To3D(),
Hitchance = HitChance.Medium,
});
}
internal static PredictionOutput GetStandardPrediction(PredictionInput input)
{
var speed = input.Unit.MoveSpeed;
if (input.Unit.Distance(input.From, true) < 200 * 200)
{
//input.Delay /= 2;
speed /= 1.5f;
}
var result = GetPositionOnPath(input, input.Unit.GetWaypoints(), speed);
// Fill with bro science
if (result.Hitchance >= HitChance.Medium && input.Unit is Obj_AI_Hero)
{
if (input.Unit.HasBuffOfType(BuffType.Slow) || input.Unit.Distance(input.From) < 300)
{
result.Hitchance = HitChance.VeryHigh;
}
if (input.Type == SkillshotType.SkillshotLine)
{
if (PathTracker.GetAngle(input.From, input.Unit) < 31 + 1)
{
result.Hitchance = HitChance.VeryHigh;
}
}
else if (input.Type == SkillshotType.SkillshotCircle)
{
if (input.Delay < 0.35 && (PathTracker.GetCurrentPath(input.Unit).Time < 0.1d || input.Unit.IsWindingUp))
{
result.Hitchance = HitChance.VeryHigh;
}
}
var totalDelay = input.From.Distance(input.Unit.ServerPosition) / input.Speed + input.Delay;
var fixRange = (input.Unit.MoveSpeed * totalDelay) / 2;
var LastWaypiont = input.Unit.GetWaypoints().Last().To3D();
if (input.Unit.Path.Count() == 0 && input.Unit.Position == input.Unit.ServerPosition)
{
if (input.From.Distance(input.Unit.ServerPosition) < input.Range - fixRange)
{
result.Hitchance = HitChance.VeryHigh;
}
else
{
result.Hitchance = HitChance.High;
}
}
else if (LastWaypiont.Distance(input.From) <= input.Unit.Distance(input.From))
{
if (input.From.Distance(input.Unit.ServerPosition) < input.Range - fixRange)
{
result.Hitchance = HitChance.VeryHigh;
}
else
{
result.Hitchance = HitChance.High;
}
}
if (LastWaypiont.Distance(input.Unit.ServerPosition) > 700)
{
if (input.From.Distance(input.Unit.ServerPosition) < input.Range - fixRange)
{
result.Hitchance = HitChance.VeryHigh;
}
}
}
return(result);
}
internal static PredictionOutput GetPositionOnPath(PredictionInput input, List <Vector2> path, float speed = -1)
{
speed = (Math.Abs(speed - (-1)) < float.Epsilon) ? input.Unit.MoveSpeed : speed;
if (path.Count <= 1)
{
return(new PredictionOutput
{
Input = input,
UnitPosition = input.Unit.ServerPosition,
CastPosition = input.Unit.ServerPosition,
Hitchance = HitChance.VeryHigh
});
}
var pLength = path.PathLength();
//Skillshots with only a delay
if (pLength >= input.Delay * speed - input.RealRadius && input.Speed == float.MaxValue)
{
var tDistance = input.Delay * speed - input.RealRadius;
return(new PredictionOutput
{
Input = input,
CastPosition = path.PCutPath(tDistance).Item1.To3D(),
UnitPosition = path.PCutPath(tDistance + input.RealRadius).Item1.To3D(),
Hitchance =
PathTracker.GetCurrentPath(input.Unit).Time < 0.1d ? HitChance.VeryHigh : HitChance.High
});
}
//Skillshot with a delay and speed.
if (pLength >= input.Delay * speed - input.RealRadius && input.Speed != float.MaxValue)
{
var path2 = new List <Vector2>();
path2.AddRange(path);
path2[0] = path[0] + input.RealRadius * (path[0] - path[1]);
var pp = CalcPositionOnPath(path, speed, input.Speed, input.From.To2D(), input.Delay, 6);
var cpp = CalcPositionOnPath(path2, speed, input.Speed, input.From.To2D(), input.Delay, 6);
if (cpp.Item3)
{
return(new PredictionOutput
{
Input = input,
CastPosition = cpp.Item1.To3D(),
UnitPosition = pp.Item1.To3D(),
Hitchance =
PathTracker.GetCurrentPath(input.Unit).Time < 0.1d ? HitChance.VeryHigh : HitChance.High
});
}
}
var position = path.Last();
return(new PredictionOutput
{
Input = input,
CastPosition = position.To3D(),
UnitPosition = position.To3D(),
Hitchance = HitChance.Medium
});
}