private static PredictionOutput GetDashingPrediction(this PredictionInput input)
{
var dashData = input.Unit.GetDashInfo();
var result = new PredictionOutput { Input = input };
if (!dashData.IsBlink)
{
var endP = dashData.Path.Last();
var dashPred = input.GetPositionOnPath(
new List<Vector2> { input.Unit.ServerPosition.ToVector2(), endP },
dashData.Speed);
if (dashPred.Hitchance >= HitChance.High
&& dashPred.UnitPosition.ToVector2().Distance(input.Unit.Position.ToVector2(), endP, true) < 200)
{
dashPred.CastPosition = dashPred.UnitPosition;
dashPred.Hitchance = HitChance.Dashing;
return dashPred;
}
if (dashData.Path.PathLength() > 200)
{
var timeToPoint = input.Delay / 2 + input.From.ToVector2().Distance(endP) / input.Speed - 0.25f;
if (timeToPoint
<= input.Unit.Distance(endP) / dashData.Speed + input.RealRadius / input.Unit.MoveSpeed)
{
return new PredictionOutput
{
CastPosition = endP.ToVector3(), UnitPosition = endP.ToVector3(),
Hitchance = HitChance.Dashing
};
}
}
result.CastPosition = dashData.Path.Last().ToVector3();
result.UnitPosition = result.CastPosition;
}
return result;
}
private static void WayPointAnalysis(this PredictionInput input, PredictionOutput result)
{
var totalDelay = input.Delay
+ (Math.Abs(input.Speed - float.MaxValue) < float.Epsilon
? 0
: input.Unit.Distance(input.From) / input.Speed);
var lastWaypoint = input.Unit.GetWaypoints().Last().ToVector3();
var totalMoveSpeed = input.Unit.MoveSpeed * totalDelay;
var minPath = 400;
var moveAngle = 30 + input.Radius / 10;
var fixRange = totalMoveSpeed * 0.6;
if (Path.PathTracker.GetCurrentPath(input.Unit).Time < 0.1)
{
minPath = 500;
moveAngle += 10;
fixRange = totalMoveSpeed * 0.4;
}
if (input.Type == SkillshotType.SkillshotCircle)
{
fixRange -= input.Radius / 2;
}
switch (input.Type)
{
case SkillshotType.SkillshotLine:
if (input.Unit.Path.Count() > 0)
{
result.Hitchance = input.Unit.Path.Count() > 1
? HitChance.Medium
: (input.From.GetAngle(input.Unit) < moveAngle
? HitChance.VeryHigh
: HitChance.High);
}
break;
case SkillshotType.SkillshotCircle:
if (totalDelay < 0.7 && AutoAttackDetection.GetLastAutoAttackTime(input.Unit) < 0.1)
{
result.Hitchance = HitChance.VeryHigh;
}
if (totalDelay < 1.1 && Path.PathTracker.GetCurrentPath(input.Unit).Time < 0.1)
{
result.Hitchance = HitChance.VeryHigh;
}
break;
}
if (input.Unit.MoveSpeed < 250)
{
result.Hitchance = HitChance.VeryHigh;
}
if (input.Unit.Distance(lastWaypoint) > minPath)
{
result.Hitchance = HitChance.VeryHigh;
}
if (totalDelay < 0.7 + input.Radius / 500 && AutoAttackDetection.GetLastAutoAttackTime(input.Unit) < 0.1)
{
result.Hitchance = HitChance.VeryHigh;
}
if (input.Unit.Path.Count() == 0 && input.Unit.Position == input.Unit.ServerPosition
&& !input.Unit.IsWindingUp)
{
result.Hitchance = input.Unit.Distance(input.From) > input.Range - fixRange
? HitChance.High
: HitChance.VeryHigh;
return;
}
if (lastWaypoint.Distance(input.From) <= input.Unit.Distance(input.From)
&& input.Unit.Distance(input.From) > input.Range - fixRange)
{
result.Hitchance = HitChance.High;
}
if (input.Unit.Path.Count() > 0 && input.Unit.Distance(lastWaypoint) < totalMoveSpeed
&& Path.PathTracker.GetCurrentPath(input.Unit).Time > 0.1)
{
result.Hitchance = HitChance.Medium;
}
if (totalDelay > 0.7 + input.Radius / 500 && input.Unit.IsWindingUp)
{
result.Hitchance = HitChance.Medium;
}
if (input.Unit.Distance(input.From) < 300 || lastWaypoint.Distance(input.From) < 250
|| input.Unit.MoveSpeed < 200)
{
result.Hitchance = HitChance.VeryHigh;
}
}
private static void WayPointAnalysis(PredictionOutput result, PredictionInput input)
{
var totalDelay = input.Delay
+ (Math.Abs(input.Speed - float.MaxValue) < float.Epsilon
? 0
: input.Unit.Distance(input.From) / input.Speed);
var fixRange = (input.Unit.MoveSpeed * totalDelay) / 2;
var lastWaypiont = input.Unit.GetWaypoints().Last().ToVector3();
if (input.Type == SkillshotType.SkillshotCircle)
{
fixRange -= input.Radius / 2;
}
switch (input.Type)
{
case SkillshotType.SkillshotLine:
if (input.Unit.Path.Count() > 0)
{
result.Hitchance = GetAngle(input.From, input.Unit) < 36 ? HitChance.VeryHigh : HitChance.High;
}
break;
case SkillshotType.SkillshotCircle:
if (totalDelay < 1.1
&& ((totalDelay < 0.7 && OnProcessSpellDetection.GetLastAutoAttackTime(input.Unit) < 0.1d)
|| Path.PathTracker.GetCurrentPath(input.Unit).Time < 0.1d))
{
result.Hitchance = HitChance.VeryHigh;
}
break;
}
if (input.Unit.HasBuffOfType(BuffType.Slow) || input.Unit.Distance(input.From) < 300
|| lastWaypiont.Distance(input.From) < 250 || input.Unit.Distance(lastWaypiont) > 800)
{
result.Hitchance = HitChance.VeryHigh;
}
if (input.Unit.Path.Count() == 0 && input.Unit.Position == input.Unit.ServerPosition
&& !input.Unit.IsWindingUp)
{
result.Hitchance = input.Unit.Distance(input.From) > input.Range - fixRange
? HitChance.High
: HitChance.VeryHigh;
return;
}
if (lastWaypiont.Distance(input.From) <= input.Unit.Distance(input.From)
&& input.Unit.Distance(input.From) > input.Range - fixRange)
{
result.Hitchance = HitChance.High;
}
if ((input.Unit.Path.Count() > 0 && input.Unit.Distance(lastWaypiont) < input.Unit.MoveSpeed * totalDelay)
|| (totalDelay > 0.7
&& (input.Unit.IsWindingUp || OnProcessSpellDetection.GetLastAutoAttackTime(input.Unit) < 0.1d))
|| (input.Unit.Path.Count() > 1 && input.Type == SkillshotType.SkillshotLine))
{
result.Hitchance = HitChance.Medium;
}
if (input.Unit.Distance(input.From) < 300 || lastWaypiont.Distance(input.From) < 250)
{
result.Hitchance = HitChance.VeryHigh;
}
}
/// <summary>
/// Returns Dashing Prediction
/// </summary>
/// <param name="input">
/// <see cref="PredictionInput" /> input
/// </param>
/// <returns><see cref="PredictionOutput" /> output</returns>
internal static PredictionOutput GetDashingPrediction(PredictionInput input)
{
var dashData = input.Unit.GetDashInfo();
var result = new PredictionOutput { Input = input };
input.Delay += 0.1f;
// Normal dashes.
if (!dashData.IsBlink)
{
// Mid air:
var dashPred = GetPositionOnPath(
input,
new List<Vector2> { input.Unit.ServerPosition.ToVector2(), dashData.Path.Last() },
dashData.Speed);
if (dashPred.Hitchance >= HitChance.High)
{
dashPred.CastPosition = dashPred.UnitPosition;
dashPred.Hitchance = HitChance.Dashing;
return dashPred;
}
// At the end of the dash:
if (dashData.Path.PathLength() > 200)
{
var endP = dashData.Path.Last();
var timeToPoint = input.Delay + (input.From.ToVector2().Distance(endP) / input.Speed);
if (timeToPoint
<= (input.Unit.Distance(endP) / dashData.Speed) + (input.RealRadius / input.Unit.MoveSpeed))
{
return new PredictionOutput
{
CastPosition = endP.ToVector3(), UnitPosition = endP.ToVector3(),
Hitchance = HitChance.Dashing
};
}
}
result.CastPosition = dashData.Path.Last().ToVector3();
result.UnitPosition = result.CastPosition;
// Figure out where the unit is going.
}
return result;
}
/// <summary>
/// Returns Calculated Prediction based off given data values.
/// </summary>
/// <param name="input">
/// <see cref="PredictionInput" /> input
/// </param>
/// <param name="ft">Add Delay</param>
/// <param name="checkCollision">Check Collision</param>
/// <returns>
/// <see cref="PredictionOutput" /> output
/// </returns>
internal static PredictionOutput GetPrediction(PredictionInput input, bool ft, bool checkCollision)
{
PredictionOutput result = null;
if (!input.Unit.IsValidTarget(float.MaxValue, false))
{
return(new PredictionOutput());
}
if (ft)
{
// Increase the delay due to the latency and server tick:
input.Delay += Game.Ping / 2000f + 0.06f;
if (input.AoE)
{
return(Cluster.GetAoEPrediction(input));
}
}
// Target too far away.
if (Math.Abs(input.Range - float.MaxValue) > float.Epsilon &&
input.Unit.DistanceSquared(input.RangeCheckFrom) > Math.Pow(input.Range * 1.5, 2))
{
return(new PredictionOutput {
Input = input
});
}
// Unit is dashing.
if (input.Unit.IsDashing())
{
result = GetDashingPrediction(input);
}
else
{
// Unit is immobile.
var remainingImmobileT = UnitIsImmobileUntil(input.Unit);
if (remainingImmobileT >= 0d)
{
result = GetImmobilePrediction(input, remainingImmobileT);
}
}
// Normal prediction
if (result == null)
{
result = GetAdvancedPrediction(input);
}
// Check if the unit position is in range
if (Math.Abs(input.Range - float.MaxValue) > float.Epsilon)
{
if (result.Hitchance >= HitChance.High &&
input.RangeCheckFrom.DistanceSquared(input.Unit.Position)
> Math.Pow(input.Range + input.RealRadius * 3 / 4, 2))
{
result.Hitchance = HitChance.Medium;
}
if (input.RangeCheckFrom.DistanceSquared(result.UnitPosition)
> Math.Pow(input.Range + (input.Type == SkillshotType.SkillshotCircle ? input.RealRadius : 0), 2))
{
result.Hitchance = HitChance.OutOfRange;
}
if (input.RangeCheckFrom.DistanceSquared(result.CastPosition) > Math.Pow(input.Range, 2))
{
if (result.Hitchance != HitChance.OutOfRange)
{
result.CastPosition = input.RangeCheckFrom
+ input.Range
* (result.UnitPosition - input.RangeCheckFrom).Normalized().SetZ();
}
else
{
result.Hitchance = HitChance.OutOfRange;
}
}
}
// Check for collision
if (checkCollision && input.Collision)
{
var positions = new List <Vector3> {
result.UnitPosition, result.CastPosition, input.Unit.Position
};
var originalUnit = input.Unit;
result.CollisionObjects = Collision.GetCollision(positions, input);
result.CollisionObjects.RemoveAll(x => x.NetworkId == originalUnit.NetworkId);
result.Hitchance = result.CollisionObjects.Count > 0 ? HitChance.Collision : result.Hitchance;
}
return(result);
}
private static PredictionOutput WayPointAnalysis(this PredictionInput input, PredictionOutput result)
{
if (!(input.Unit is Obj_AI_Hero))
{
result.Hitchance = HitChance.VeryHigh;
return result;
}
if (UnitTracker.GetLastSpecialSpellTime(input.Unit) > 0)
{
result.Hitchance = HitChance.VeryHigh;
return result;
}
result.Hitchance = HitChance.High;
var lastWaypoint = input.Unit.GetWaypoints().Last().ToVector3();
var distUnitToWaypoint = input.Unit.Distance(lastWaypoint);
var distUnitToFrom = input.Unit.Distance(input.From);
var distFromToWaypoint = input.From.Distance(lastWaypoint);
var totalDelay = input.Delay
+ (Math.Abs(input.Speed - float.MaxValue) < float.Epsilon
? 0
: distUnitToFrom / input.Speed);
var moveArea = input.Unit.MoveSpeed * totalDelay;
var fixRange = moveArea * 0.7f;
var moveAngle = 30 + input.Radius / 10 - input.Delay * 5;
var backToFront = moveArea * 1.5f;
var minPath = 700 + backToFront;
if (UnitTracker.CanCalcWaypoints(input.Unit))
{
result.Hitchance = distUnitToFrom < input.Range - fixRange ? HitChance.VeryHigh : HitChance.High;
return result;
}
if (UnitTracker.GetLastNewPathTime(input.Unit) < 0.1)
{
fixRange = moveArea * (0.2f + input.Delay);
backToFront = moveArea;
}
if (input.Type == SkillshotType.SkillshotCircle)
{
fixRange -= input.Radius / 2;
}
if (distUnitToWaypoint > minPath)
{
result.Hitchance = HitChance.VeryHigh;
}
else if (input.Type == SkillshotType.SkillshotLine)
{
if (input.Unit.Path.Length > 0)
{
if (input.From.GetAngle(input.Unit) < moveAngle)
{
result.Hitchance = HitChance.VeryHigh;
}
else if (UnitTracker.GetLastNewPathTime(input.Unit) > 0.1)
{
result.Hitchance = HitChance.High;
}
}
}
if (input.Unit.Path.Length == 0 && input.Unit.Position == input.Unit.ServerPosition)
{
if (UnitTracker.GetLastStopMoveTime(input.Unit) < 0.5)
{
result.Hitchance = HitChance.High;
}
else
{
result.Hitchance = distUnitToFrom > input.Range - fixRange ? HitChance.Medium : HitChance.VeryHigh;
}
}
else if (distFromToWaypoint <= input.Unit.Distance(input.From) && distUnitToFrom > input.Range - fixRange)
{
result.Hitchance = HitChance.Medium;
}
if (UnitTracker.GetLastAttackTime(input.Unit) < 0.1)
{
result.Hitchance = (input.Type == SkillshotType.SkillshotLine && totalDelay < 0.8 + input.Radius * 0.001)
|| (input.Type == SkillshotType.SkillshotCircle
&& totalDelay < 0.6 + input.Radius * 0.001)
? HitChance.VeryHigh
: HitChance.Medium;
}
if (input.Type == SkillshotType.SkillshotCircle)
{
if (UnitTracker.GetLastNewPathTime(input.Unit) < 0.1)
{
result.Hitchance = HitChance.VeryHigh;
}
else if (distUnitToFrom < input.Range - fixRange)
{
result.Hitchance = HitChance.VeryHigh;
}
}
if (result.Hitchance != HitChance.Medium)
{
if (input.Unit.IsWindingUp && UnitTracker.GetLastAttackTime(input.Unit) > 0.1)
{
result.Hitchance = HitChance.Medium;
}
else if (input.Unit.Path.Length == 0 && input.Unit.Position != input.Unit.ServerPosition)
{
result.Hitchance = HitChance.Medium;
}
else if (input.Unit.Path.Length > 0 && distUnitToWaypoint < backToFront)
{
result.Hitchance = HitChance.Medium;
}
else if (input.Unit.Path.Length > 1)
{
result.Hitchance = HitChance.Medium;
}
else if (UnitTracker.GetLastVisableTime(input.Unit) < 0.05)
{
result.Hitchance = HitChance.Medium;
}
}
if (distFromToWaypoint > input.Unit.Distance(input.From) && input.From.GetAngle(input.Unit) > moveAngle)
{
result.Hitchance = HitChance.VeryHigh;
}
if (input.Unit.Distance(input.From) < 400 || distFromToWaypoint < 300 || input.Unit.MoveSpeed < 200)
{
result.Hitchance = HitChance.VeryHigh;
}
return result;
}
