/// <summary>
/// Returns an Area of Effect Prediction
/// </summary>
/// <param name="input">
/// <see cref="PredictionInput" /> input
/// </param>
/// <returns>
/// <see cref="PredictionOutput" /> output
/// </returns>
public static PredictionOutput GetAoEPrediction(PredictionInput input)
{
switch (input.Type)
{
case SkillshotType.SkillshotCircle:
return Circle.GetCirclePrediction(input);
case SkillshotType.SkillshotCone:
return Cone.GetConePrediction(input);
case SkillshotType.SkillshotLine:
return Line.GetLinePrediction(input);
}
return new PredictionOutput();
}
/// <summary>
/// Gets the list of minions currently between the source and target
/// </summary>
/// <param name="source">
/// The Source
/// </param>
/// <param name="targetPosition">
/// The Target Position
/// </param>
/// <returns>
/// The <see cref="List" />.
/// </returns>
public static List<Obj_AI_Base> GetCollisionMinions(Obj_AI_Hero source, Vector3 targetPosition)
{
var input = new PredictionInput
{
Unit = source, Radius = SpellManager.Spell[SpellSlot.Q].Width,
Delay = SpellManager.Spell[SpellSlot.Q].Delay,
Speed = SpellManager.Spell[SpellSlot.Q].Speed,
CollisionObjects = CollisionableObjects.Minions
};
return
Collision.GetCollision(new List<Vector3> { targetPosition }, input)
.OrderBy(x => x.Distance(source))
.ToList();
}
/// <summary>
/// Returns the possible targets of a prediction input source.
/// </summary>
/// <param name="input">
/// <see cref="PredictionInput" /> input
/// </param>
/// <returns><see cref="PossibleTarget" /> list.</returns>
internal static List<PossibleTarget> GetPossibleTargets(PredictionInput input)
{
var result = new List<PossibleTarget>();
var originalUnit = input.Unit;
foreach (var enemy in
GameObjects.Enemy.Where(
h =>
h.NetworkId != originalUnit.NetworkId
&& h.IsValidTarget(input.Range + 200 + input.RealRadius, true, input.RangeCheckFrom)))
{
input.Unit = enemy;
var prediction = Movement.GetPrediction(input, false, false);
if (prediction.Hitchance >= HitChance.High)
{
result.Add(new PossibleTarget { Position = prediction.UnitPosition.ToVector2(), Unit = enemy });
}
}
return result;
}
private static PredictionOutput GetDashingPrediction(PredictionInput input)
{
var dashData = input.Unit.GetDashInfo();
var result = new PredictionOutput { Input = input };
input.Delay += 0.1f;
if (!dashData.IsBlink)
{
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;
}
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;
}
return result;
}
internal static List<Obj_AI_Base> GetCollision(List<Vector3> positions, PredictionInput input)
{
var result = new List<Obj_AI_Base>();
foreach (var position in positions)
{
foreach (var objType in input.CollisionObjects)
{
switch (objType)
{
case CollisionableObjects.Minions:
foreach (var minion in
GameObjects.EnemyMinions.Where(
i =>
i.IsValidTarget(
Math.Min(input.Range + input.Radius + 100, 2000),
true,
input.RangeCheckFrom)))
{
input.Unit = minion;
var pred = input.GetPrediction(false, false);
if (pred.UnitPosition.ToVector2()
.DistanceSquared(input.From.ToVector2(), position.ToVector2(), true)
<= Math.Pow(input.Radius + 15 + minion.BoundingRadius, 2))
{
result.Add(minion);
}
}
break;
case CollisionableObjects.Heroes:
foreach (var hero in
GameObjects.EnemyHeroes.Where(
i =>
i.IsValidTarget(
Math.Min(input.Range + input.Radius + 100, 2000),
true,
input.RangeCheckFrom)))
{
input.Unit = hero;
var pred = input.GetPrediction(false, false);
if (pred.UnitPosition.ToVector2()
.DistanceSquared(input.From.ToVector2(), position.ToVector2(), true)
<= Math.Pow(input.Radius + 50 + hero.BoundingRadius, 2))
{
result.Add(hero);
}
}
break;
case CollisionableObjects.Walls:
var step = position.Distance(input.From) / 20;
for (var i = 0; i < 20; i++)
{
var p = input.From.ToVector2().Extend(position.ToVector2(), step * i);
if (NavMesh.GetCollisionFlags(p.X, p.Y).HasFlag(CollisionFlags.Wall))
{
result.Add(ObjectManager.Player);
}
}
break;
case CollisionableObjects.YasuoWall:
if (Variables.TickCount - wallCastT > 4000)
{
continue;
}
var wall =
GameObjects.AllGameObjects.FirstOrDefault(
i =>
i.IsValid
&& Regex.IsMatch(i.Name, "_w_windwall_enemy_0.\\.troy", RegexOptions.IgnoreCase));
if (wall == null)
{
break;
}
var wallWidth = 300 + 50 * Convert.ToInt32(wall.Name.Substring(wall.Name.Length - 6, 1));
var wallDirection =
(wall.Position.ToVector2() - yasuoWallCastedPos).Normalized().Perpendicular();
var wallStart = wall.Position.ToVector2() + wallWidth / 2f * wallDirection;
var wallEnd = wallStart - wallWidth * wallDirection;
if (
wallStart.Intersection(wallEnd, position.ToVector2(), input.From.ToVector2())
.Intersects)
{
var t = Variables.TickCount
+ (wallStart.Intersection(
wallEnd,
position.ToVector2(),
input.From.ToVector2()).Point.Distance(input.From) / input.Speed
+ input.Delay) * 1000;
if (t < wallCastT + 4000)
{
result.Add(ObjectManager.Player);
}
}
break;
}
}
}
return result.Distinct().ToList();
}
private static PredictionOutput GetImmobilePrediction(PredictionInput input, double remainingImmobileT)
{
var timeToReachTargetPosition = input.Delay + input.Unit.Distance(input.From) / input.Speed;
return timeToReachTargetPosition <= remainingImmobileT + input.RealRadius / input.Unit.MoveSpeed
? new PredictionOutput
{
CastPosition = input.Unit.ServerPosition, UnitPosition = input.Unit.Position,
Hitchance = HitChance.Immobile
}
: new PredictionOutput
{
Input = input, CastPosition = input.Unit.ServerPosition,
UnitPosition = input.Unit.ServerPosition, Hitchance = HitChance.High
};
}
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;
}
}
private static PredictionOutput GetPrediction(PredictionInput input, bool ft, bool checkCollision)
{
PredictionOutput result = null;
if (!input.Unit.IsValidTarget(float.MaxValue, false))
{
return new PredictionOutput();
}
if (ft)
{
input.Delay += Game.Ping / 2000f + 0.06f;
if (input.AoE)
{
return Cluster.GetAoEPrediction(input);
}
}
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 };
}
if (input.Unit.IsDashing())
{
result = GetDashingPrediction(input);
}
else
{
var remainingImmobileT = UnitIsImmobileUntil(input.Unit);
if (remainingImmobileT >= 0d)
{
result = GetImmobilePrediction(input, remainingImmobileT);
}
}
if (result == null)
{
result = GetStandardPrediction(input);
}
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;
}
}
}
if (result.Hitchance > HitChance.Medium)
{
WayPointAnalysis(result, input);
}
if (checkCollision && input.Collision)
{
var positions = new List<Vector3> { result.UnitPosition, result.CastPosition, input.Unit.Position };
var originalUnit = input.Unit;
result.CollisionObjects = Collisions.GetCollision(positions, input);
result.CollisionObjects.RemoveAll(i => i.NetworkId == originalUnit.NetworkId);
result.Hitchance = result.CollisionObjects.Count > 0 ? HitChance.Collision : result.Hitchance;
}
return result;
}
private static PredictionOutput GetStandardPrediction(PredictionInput input)
{
var speed = input.Unit.MoveSpeed;
if (input.Unit.DistanceSquared(input.From) < 200 * 200)
{
speed /= 1.5f;
}
var result = GetPositionOnPath(input, input.Unit.GetWaypoints(), speed);
if (result.Hitchance >= HitChance.High && input.Unit is Obj_AI_Hero)
{
}
return result;
}
internal static PredictionOutput GetConePrediction(PredictionInput input)
{
var mainTargetPrediction = input.GetPrediction(false, true);
var posibleTargets = new List<PossibleTarget>
{
new PossibleTarget
{
Position = mainTargetPrediction.UnitPosition.ToVector2(),
Unit = input.Unit
}
};
if (mainTargetPrediction.Hitchance >= HitChance.Medium)
{
posibleTargets.AddRange(GetPossibleTargets(input));
}
if (posibleTargets.Count > 1)
{
var candidates = new List<Vector2>();
foreach (var target in posibleTargets)
{
target.Position = target.Position - input.From.ToVector2();
}
for (var i = 0; i < posibleTargets.Count; i++)
{
for (var j = 0; j < posibleTargets.Count; j++)
{
if (i != j)
{
var p = (posibleTargets[i].Position + posibleTargets[j].Position) * 0.5f;
if (!candidates.Contains(p))
{
candidates.Add(p);
}
}
}
}
var bestCandidateHits = -1;
var bestCandidate = new Vector2();
var positionsList = posibleTargets.Select(i => i.Position).ToList();
foreach (var candidate in candidates)
{
var hits = GetHits(candidate, input.Range, input.Radius, positionsList);
if (hits > bestCandidateHits)
{
bestCandidate = candidate;
bestCandidateHits = hits;
}
}
if (bestCandidateHits > 1 && input.From.ToVector2().DistanceSquared(bestCandidate) > 50 * 50)
{
return new PredictionOutput
{
Hitchance = mainTargetPrediction.Hitchance, AoeHitCount = bestCandidateHits,
UnitPosition = mainTargetPrediction.UnitPosition,
CastPosition = bestCandidate.ToVector3(), Input = input
};
}
}
return mainTargetPrediction;
}
/// <summary>
/// Returns an Area-of-Effect cone prediction from a prediction input source.
/// </summary>
/// <param name="input">
/// <see cref="PredictionInput" /> input
/// </param>
/// <returns>
/// <see cref="PredictionOutput" /> output
/// </returns>
public static PredictionOutput GetConePrediction(PredictionInput input)
{
var mainTargetPrediction = Movement.GetPrediction(input, false, true);
var posibleTargets = new List <PossibleTarget>
{
new PossibleTarget
{
Position = mainTargetPrediction.UnitPosition.ToVector2(),
Unit = input.Unit
}
};
if (mainTargetPrediction.Hitchance >= HitChance.Medium)
{
// Add the posible targets in range:
posibleTargets.AddRange(GetPossibleTargets(input));
}
if (posibleTargets.Count > 1)
{
var candidates = new List <Vector2>();
foreach (var target in posibleTargets)
{
target.Position = target.Position - input.From.ToVector2();
}
for (var i = 0; i < posibleTargets.Count; i++)
{
for (var j = 0; j < posibleTargets.Count; j++)
{
if (i != j)
{
var p = (posibleTargets[i].Position + posibleTargets[j].Position) * 0.5f;
if (!candidates.Contains(p))
{
candidates.Add(p);
}
}
}
}
var bestCandidateHits = -1;
var bestCandidate = default(Vector2);
var positionsList = posibleTargets.Select(t => t.Position).ToList();
foreach (var candidate in candidates)
{
var hits = GetHits(candidate, input.Range, input.Radius, positionsList);
if (hits > bestCandidateHits)
{
bestCandidate = candidate;
bestCandidateHits = hits;
}
}
if (bestCandidateHits > 1 && input.From.ToVector2().DistanceSquared(bestCandidate) > 50 * 50)
{
return(new PredictionOutput
{
Hitchance = mainTargetPrediction.Hitchance, AoeHitCount = bestCandidateHits,
UnitPosition = mainTargetPrediction.UnitPosition,
CastPosition = bestCandidate.ToVector3(), Input = input
});
}
}
return(mainTargetPrediction);
}
/// <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;
}
/// <summary>
/// Get Position on Unit's Path.
/// </summary>
/// <param name="input">
/// <see cref="PredictionInput" /> input
/// </param>
/// <param name="path">Path in Vector2 List</param>
/// <param name="speed">Unit Speed</param>
/// <returns><see cref="PredictionOutput" /> output</returns>
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 &&
Math.Abs(input.Speed - float.MaxValue) < float.Epsilon)
{
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.ToVector3(), UnitPosition = p.ToVector3(),
Hitchance =
Path.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 = a.VectorMovementCollision(b, speed, input.From.ToVector2(), 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.ToVector2() - 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.ToVector2() + (p - input.From.ToVector2()).Rotated(beta);
var cp2 = input.From.ToVector2() + (p - input.From.ToVector2()).Rotated(-beta);
pos = cp1.DistanceSquared(pos) < cp2.DistanceSquared(pos) ? cp1 : cp2;
}
}
return(new PredictionOutput
{
Input = input, CastPosition = pos.ToVector3(), UnitPosition = p.ToVector3(),
Hitchance =
Path.PathTracker.GetCurrentPath(input.Unit).Time < 0.1d
? HitChance.VeryHigh
: HitChance.High
});
}
tT += tB;
}
}
var position = path.Last();
return(new PredictionOutput
{
Input = input, CastPosition = position.ToVector3(), UnitPosition = position.ToVector3(),
Hitchance = HitChance.Medium
});
}
/// <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>
/// Calculates the position to cast a spell according to unit movement.
/// </summary>
/// <param name="input">PredictionInput type</param>
/// <param name="additionalSpeed">Additional Speed (Multiplicative)</param>
/// <returns>The <see cref="PredictionOutput" /></returns>
internal static PredictionOutput GetAdvancedPrediction(PredictionInput input, float additionalSpeed = 0)
{
var speed = Math.Abs(additionalSpeed) < float.Epsilon ? input.Speed : input.Speed * additionalSpeed;
if (Math.Abs(speed - int.MaxValue) < float.Epsilon)
{
speed = 90000;
}
var unit = input.Unit;
var position = PositionAfter(unit, 1, unit.MoveSpeed - 100);
var prediction = position + (speed * (input.Delay / 1000));
return new PredictionOutput()
{
UnitPosition = new Vector3(position.X, position.Y, unit.ServerPosition.Z),
CastPosition = new Vector3(prediction.X, prediction.Y, unit.ServerPosition.Z),
Hitchance = HitChance.High
};
}
/// <summary>
/// Returns an Area-of-Effect line prediction from a prediction input source.
/// </summary>
/// <param name="input">
/// <see cref="PredictionInput" /> input
/// </param>
/// <returns>
/// <see cref="PredictionOutput" /> output
/// </returns>
public static PredictionOutput GetLinePrediction(PredictionInput input)
{
var mainTargetPrediction = Movement.GetPrediction(input, false, true);
var posibleTargets = new List <PossibleTarget>
{
new PossibleTarget
{
Position = mainTargetPrediction.UnitPosition.ToVector2(),
Unit = input.Unit
}
};
if (mainTargetPrediction.Hitchance >= HitChance.Medium)
{
// Add the posible targets in range:
posibleTargets.AddRange(GetPossibleTargets(input));
}
if (posibleTargets.Count > 1)
{
var candidates = new List <Vector2>();
foreach (var targetCandidates in
posibleTargets.Select(
target => GetCandidates(input.From.ToVector2(), target.Position, input.Radius, input.Range))
)
{
candidates.AddRange(targetCandidates);
}
var bestCandidateHits = -1;
var bestCandidate = default(Vector2);
var bestCandidateHitPoints = new List <Vector2>();
var positionsList = posibleTargets.Select(t => t.Position).ToList();
foreach (var candidate in candidates)
{
if (
GetHits(
input.From.ToVector2(),
candidate,
input.Radius + (input.Unit.BoundingRadius / 3) - 10,
new List <Vector2> {
posibleTargets[0].Position
}).Count() == 1)
{
var hits = GetHits(input.From.ToVector2(), candidate, input.Radius, positionsList).ToList();
var hitsCount = hits.Count;
if (hitsCount >= bestCandidateHits)
{
bestCandidateHits = hitsCount;
bestCandidate = candidate;
bestCandidateHitPoints = hits.ToList();
}
}
}
if (bestCandidateHits > 1)
{
float maxDistance = -1;
Vector2 p1 = default(Vector2), p2 = default(Vector2);
// Center the position
for (var i = 0; i < bestCandidateHitPoints.Count; i++)
{
for (var j = 0; j < bestCandidateHitPoints.Count; j++)
{
var startP = input.From.ToVector2();
var endP = bestCandidate;
var proj1 = positionsList[i].ProjectOn(startP, endP);
var proj2 = positionsList[j].ProjectOn(startP, endP);
var dist = Vector2.DistanceSquared(bestCandidateHitPoints[i], proj1.LinePoint)
+ Vector2.DistanceSquared(bestCandidateHitPoints[j], proj2.LinePoint);
if (dist >= maxDistance &&
(proj1.LinePoint - positionsList[i]).AngleBetween(
proj2.LinePoint - positionsList[j]) > 90)
{
maxDistance = dist;
p1 = positionsList[i];
p2 = positionsList[j];
}
}
}
return(new PredictionOutput
{
Hitchance = mainTargetPrediction.Hitchance, AoeHitCount = bestCandidateHits,
UnitPosition = mainTargetPrediction.UnitPosition,
CastPosition = ((p1 + p2) * 0.5f).ToVector3(), Input = input
});
}
}
return(mainTargetPrediction);
}
public static PredictionOutput GetPrediction(PredictionInput input)
{
return input.GetPrediction(true, true);
}
/// <summary>
/// Returns Calculated Prediction based off given data values.
/// </summary>
/// <param name="input">
/// <see cref="PredictionInput" /> input
/// </param>
/// <returns>
/// <see cref="PredictionOutput" /> output
/// </returns>
public static PredictionOutput GetPrediction(PredictionInput input)
{
return(GetPrediction(input, true, true));
}
internal static PredictionOutput GetCirclePrediction(PredictionInput input)
{
var mainTargetPrediction = input.GetPrediction(false, true);
var posibleTargets = new List<PossibleTarget>
{
new PossibleTarget
{
Position = mainTargetPrediction.UnitPosition.ToVector2(),
Unit = input.Unit
}
};
if (mainTargetPrediction.Hitchance >= HitChance.Medium)
{
posibleTargets.AddRange(GetPossibleTargets(input));
}
while (posibleTargets.Count > 1)
{
var mecCircle = ConvexHull.GetMec(posibleTargets.Select(i => i.Position).ToList());
if (mecCircle.Radius <= input.RealRadius - 10
&& mecCircle.Center.DistanceSquared(input.RangeCheckFrom.ToVector2())
< input.Range * input.Range)
{
return new PredictionOutput
{
AoeTargetsHit = posibleTargets.Select(i => (Obj_AI_Hero)i.Unit).ToList(),
CastPosition = mecCircle.Center.ToVector3(),
UnitPosition = mainTargetPrediction.UnitPosition,
Hitchance = mainTargetPrediction.Hitchance, Input = input,
AoeHitCount = posibleTargets.Count
};
}
float maxdist = -1;
var maxdistindex = 1;
for (var i = 1; i < posibleTargets.Count; i++)
{
var distance = posibleTargets[i].Position.DistanceSquared(posibleTargets[0].Position);
if (distance > maxdist || maxdist.CompareTo(-1) == 0)
{
maxdistindex = i;
maxdist = distance;
}
}
posibleTargets.RemoveAt(maxdistindex);
}
return mainTargetPrediction;
}
/// <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);
}
internal static PredictionOutput GetLinePrediction(PredictionInput input)
{
var mainTargetPrediction = input.GetPrediction(false, true);
var posibleTargets = new List<PossibleTarget>
{
new PossibleTarget
{
Position = mainTargetPrediction.UnitPosition.ToVector2(),
Unit = input.Unit
}
};
if (mainTargetPrediction.Hitchance >= HitChance.Medium)
{
posibleTargets.AddRange(GetPossibleTargets(input));
}
if (posibleTargets.Count > 1)
{
var candidates = new List<Vector2>();
foreach (var targetCandidates in
posibleTargets.Select(
i => GetCandidates(input.From.ToVector2(), i.Position, input.Radius, input.Range)))
{
candidates.AddRange(targetCandidates);
}
var bestCandidateHits = -1;
var bestCandidate = new Vector2();
var bestCandidateHitPoints = new List<Vector2>();
var positionsList = posibleTargets.Select(i => i.Position).ToList();
foreach (var candidate in candidates)
{
if (
GetHits(
input.From.ToVector2(),
candidate,
input.Radius + input.Unit.BoundingRadius / 3 - 10,
new List<Vector2> { posibleTargets[0].Position }).Count == 1)
{
var hits = GetHits(input.From.ToVector2(), candidate, input.Radius, positionsList);
var hitsCount = hits.Count;
if (hitsCount >= bestCandidateHits)
{
bestCandidateHits = hitsCount;
bestCandidate = candidate;
bestCandidateHitPoints = hits;
}
}
}
if (bestCandidateHits > 1)
{
float maxDistance = -1;
Vector2 p1 = new Vector2(), p2 = new Vector2();
for (var i = 0; i < bestCandidateHitPoints.Count; i++)
{
for (var j = 0; j < bestCandidateHitPoints.Count; j++)
{
var startP = input.From.ToVector2();
var endP = bestCandidate;
var proj1 = positionsList[i].ProjectOn(startP, endP);
var proj2 = positionsList[j].ProjectOn(startP, endP);
var dist = bestCandidateHitPoints[i].DistanceSquared(proj1.LinePoint)
+ bestCandidateHitPoints[j].DistanceSquared(proj2.LinePoint);
if (dist >= maxDistance
&& (proj1.LinePoint - positionsList[i]).AngleBetween(
proj2.LinePoint - positionsList[j]) > 90)
{
maxDistance = dist;
p1 = positionsList[i];
p2 = positionsList[j];
}
}
}
return new PredictionOutput
{
Hitchance = mainTargetPrediction.Hitchance, AoeHitCount = bestCandidateHits,
UnitPosition = mainTargetPrediction.UnitPosition,
CastPosition = ((p1 + p2) * 0.5f).ToVector3(), Input = input
};
}
}
return mainTargetPrediction;
}
private 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();
if (pLength >= input.Delay * speed - input.RealRadius
&& Math.Abs(input.Speed - float.MaxValue) < float.Epsilon)
{
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.ToVector3(), UnitPosition = p.ToVector3(),
Hitchance =
Path.PathTracker.GetCurrentPath(input.Unit).Time < 0.1d
? HitChance.VeryHigh
: HitChance.High
};
}
tDistance -= d;
}
}
if (pLength >= input.Delay * speed - input.RealRadius
&& Math.Abs(input.Speed - float.MaxValue) > float.Epsilon)
{
path =
path.CutPath(
input.Delay * speed
- ((input.Type == SkillshotType.SkillshotLine || input.Type == SkillshotType.SkillshotCone)
&& input.Unit.DistanceSquared(input.From) < 200 * 200
? 0
: 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 = a.VectorMovementCollision(b, speed, input.From.ToVector2(), input.Speed, tT);
var t = (float)sol[0];
var pos = (Vector2)sol[1];
if (pos.IsValid() && t >= tT && t <= tT + tB)
{
if (pos.DistanceSquared(b) < 20)
{
break;
}
var p = pos + input.RealRadius * direction;
/*if (input.Type == SkillshotType.SkillshotLine)
{
var alpha = (input.From.ToVector2() - 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.ToVector2() + (p - input.From.ToVector2()).Rotated(beta);
var cp2 = input.From.ToVector2() + (p - input.From.ToVector2()).Rotated(-beta);
pos = cp1.DistanceSquared(pos) < cp2.DistanceSquared(pos) ? cp1 : cp2;
}
}*/
return new PredictionOutput
{
Input = input, CastPosition = pos.ToVector3(), UnitPosition = p.ToVector3(),
Hitchance =
Path.PathTracker.GetCurrentPath(input.Unit).Time < 0.1d
? HitChance.VeryHigh
: HitChance.High
};
}
tT += tB;
}
}
var position = path.Last();
return new PredictionOutput
{
Input = input, CastPosition = position.ToVector3(), UnitPosition = position.ToVector3(),
Hitchance = HitChance.Medium
};
}
