/// <summary>
/// Gets prediction result
/// </summary>
/// <param name="target">Target</param>
/// <param name="width">Vector width</param>
/// <param name="delay">Spell delay</param>
/// <param name="vectorSpeed">Vector speed</param>
/// <param name="range">Spell range</param>
/// <param name="vectorLenght">Vector lenght</param>
/// <param name="path">Waypoints of target</param>
/// <param name="avgt">Average reaction time (in ms)</param>
/// <param name="movt">Passed time from last movement change (in ms)</param>
/// <param name="avgp">Average Path Lenght</param>
/// <param name="rangeCheckFrom"></param>
/// <returns>Prediction result as <see cref="VectorResult"/></returns>
public static VectorResult GetPrediction(AIBaseClient target, float width, float delay, float vectorSpeed, float range, float vectorLenght, List <Vector2> path, float avgt, float movt, float avgp, Vector2 rangeCheckFrom)
{
var result = new VectorResult();
//auto aoe hit (2 hits with using one target as from position)
if (target.Type == GameObjectType.AIHeroClient && target.IsValid) //do these calcs if champion kappa
{
if (ObjectManager.Player.CountEnemyHeroesInRange(range) > 0 && ObjectManager.Player.CountEnemyHeroesInRange(range + vectorLenght) > 1) //if there is at least 1 enemy in range && at least 2 enemy which laser can hit
{
var predPos1 = PredictionExtensions.GetFastUnitPosition(target, delay); //get target unit position after delay
foreach (var enemy in GameObjects.EnemyHeroes) //loop all enemies
{
if (enemy.NetworkId != target.NetworkId && enemy.Distance(rangeCheckFrom) < range + vectorLenght) //if enemy is not given target and enemy is hitable by laser
{
var predPos2 = PredictionExtensions.GetFastUnitPosition(enemy, delay); //get enemy unit position after delay
if (predPos1.Distance(rangeCheckFrom) < range) //if target is in range
{
var predRes = LinePrediction.GetLinePrediction(enemy, width, delay, vectorSpeed, vectorLenght, false, enemy.GetWaypoints(), enemy.AvgMovChangeTime(), enemy.LastMovChangeTime(), enemy.AvgPathLenght(), 360, predPos1 - (predPos1 - rangeCheckFrom).Normalized().Perpendicular() * 30, predPos1 - (predPos1 - rangeCheckFrom).Normalized().Perpendicular() * 30); //get enemy prediciton with from = target's position (a bit backward)
if (predRes.HitChance >= HitChance.Low)
{
var f = predPos1 - (predPos1 - rangeCheckFrom).Normalized().Perpendicular() * 30;
return(new VectorResult
{
CastSourcePosition = f,
CastTargetPosition = predRes.CastPosition,
UnitPosition = predRes.UnitPosition,
HitChance = predRes.HitChance,
CollisionResult = predRes.CollisionResult,
});
}
}
else if (predPos2.Distance(rangeCheckFrom) < range) //if enemy is in range
{
var predRes = LinePrediction.GetLinePrediction(target, width, delay, vectorSpeed, vectorLenght, false, path, avgt, movt, avgp, 360, predPos2 - (predPos2 - rangeCheckFrom).Normalized().Perpendicular() * 30, predPos2 - (predPos2 - rangeCheckFrom).Normalized().Perpendicular() * 30); //get target prediction with from = enemy's position (a bit backward)
if (predRes.HitChance >= HitChance.Low)
{
var f = predPos2 - (predPos2 - rangeCheckFrom).Normalized().Perpendicular() * 30;
return(new VectorResult
{
CastSourcePosition = f,
CastTargetPosition = predRes.CastPosition,
UnitPosition = predRes.UnitPosition,
HitChance = predRes.HitChance,
CollisionResult = predRes.CollisionResult,
});
}
}
}
}
}
}
var immobileFrom = rangeCheckFrom + (target.PreviousPosition.ToVector2() - rangeCheckFrom).Normalized() * range;
if (path.Count <= 1) //if target is not moving, easy to hit
{
result.HitChance = HitChance.VeryHigh;
result.CastSourcePosition = immobileFrom;
result.CastTargetPosition = target.PreviousPosition.ToVector2();
result.UnitPosition = result.CastTargetPosition;
result.CollisionResult = Collision.GetCollisions(immobileFrom, result.CastTargetPosition, range, width, delay, vectorSpeed);
if (immobileFrom.Distance(result.CastTargetPosition) > vectorLenght - PredictionExtensions.GetArrivalTime(immobileFrom.Distance(result.CastTargetPosition), delay, vectorSpeed) * target.MoveSpeed)
{
result.HitChance = HitChance.OutOfRange;
}
return(result);
}
if (target is AIHeroClient hero)
{
if (hero.IsCastingImporantSpell())
{
result.HitChance = HitChance.VeryHigh;
result.CastSourcePosition = immobileFrom;
result.CastTargetPosition = hero.PreviousPosition.ToVector2();
result.UnitPosition = result.CastTargetPosition;
result.CollisionResult = Collision.GetCollisions(immobileFrom, result.CastTargetPosition, range, width, delay, vectorSpeed);
//check if target can dodge with moving backward
if (immobileFrom.Distance(result.CastTargetPosition) > range - PredictionExtensions.GetArrivalTime(immobileFrom.Distance(result.CastTargetPosition), delay, vectorSpeed) * hero.MoveSpeed)
{
result.HitChance = HitChance.OutOfRange;
}
return(result);
}
//to do: find a fuking logic
if (avgp < 400 && movt < 100)
{
result.HitChance = HitChance.High;
result.CastTargetPosition = hero.PreviousPosition.ToVector2();
result.CastSourcePosition = immobileFrom;
result.UnitPosition = result.CastTargetPosition;
result.CollisionResult = Collision.GetCollisions(immobileFrom, result.CastTargetPosition, range, width, delay, vectorSpeed);
//check if target can dodge with moving backward
if (immobileFrom.Distance(result.CastTargetPosition) > range - PredictionExtensions.GetArrivalTime(immobileFrom.Distance(result.CastTargetPosition), delay, vectorSpeed) * hero.MoveSpeed)
{
result.HitChance = HitChance.OutOfRange;
}
return(result);
}
}
if (target.IsDashing())
{
var dashPred = PredictionExtensions.GetDashingPrediction(target, width, delay, vectorSpeed, range, false, SpellType.Line, immobileFrom, rangeCheckFrom);
return(new VectorResult
{
CastSourcePosition = immobileFrom,
CastTargetPosition = dashPred.CastPosition,
UnitPosition = dashPred.UnitPosition,
HitChance = dashPred.HitChance,
CollisionResult = dashPred.CollisionResult,
});
}
if (target.IsImmobileTarget())
{
var immoPred = PredictionExtensions.GetImmobilePrediction(target, width, delay, vectorSpeed, range, false, SpellType.Line, immobileFrom, rangeCheckFrom);
return(new VectorResult
{
CastSourcePosition = immobileFrom,
CastTargetPosition = immoPred.CastPosition,
UnitPosition = immoPred.UnitPosition,
HitChance = immoPred.HitChance,
CollisionResult = immoPred.CollisionResult,
});
}
for (var i = 0; i < path.Count - 1; i++)
{
var point = Geometry.ClosestCirclePoint(rangeCheckFrom, range, path[i]);
if (path[i].Distance(ObjectManager.Player.PreviousPosition) < range)
{
point = path[i];
}
var res = PredictionExtensions.WaypointAnlysis(target, width, delay, vectorSpeed, vectorLenght, false, SpellType.Line, path, avgt, movt, avgp, 360, point);
res.Input = new PredictionInput(target, delay, vectorSpeed, width, range, false, SpellType.Line, rangeCheckFrom.ToVector3World(), rangeCheckFrom.ToVector3World());
res.Lock();
if (res.HitChance >= HitChance.Low)
{
return(new VectorResult
{
CastSourcePosition = point,
CastTargetPosition = res.CastPosition,
UnitPosition = res.UnitPosition,
HitChance = res.HitChance,
CollisionResult = res.CollisionResult,
});
}
}
result.CastSourcePosition = immobileFrom;
result.CastTargetPosition = target.PreviousPosition.ToVector2();
result.HitChance = HitChance.None;
return(result);
}
/// <summary>
/// Gets Prediction result
/// </summary>
/// <param name="target">Target for spell</param>
/// <param name="width">Spell width</param>
/// <param name="delay">Spell delay</param>
/// <param name="missileSpeed">Spell missile speed</param>
/// <param name="range">Spell range</param>
/// <param name="collisionable">Spell collisionable</param>
/// <param name="path">Waypoints of target</param>
/// <param name="avgt">Average reaction time (in ms)</param>
/// <param name="movt">Passed time from last movement change (in ms)</param>
/// <param name="avgp">Average Path Lenght</param>
/// <param name="from">Spell casted position</param>
/// <param name="rangeCheckFrom">Spell range check fropm</param>
/// <param name="arconly">Is Arc</param>
/// <returns>Prediction result as <see cref="PredictionResult"/></returns>
public static PredictionResult GetPrediction(AIBaseClient target, float width, float delay, float missileSpeed, float range, bool collisionable, List <Vector2> path, float avgt, float movt, float avgp, float anglediff, Vector2 from, Vector2 rangeCheckFrom, bool arconly = true)
{
if (arconly)
{
if (target.Distance(from) < width || target.Distance(from) > range * 0.75f)
{
return(CirclePrediction.GetPrediction(target, width, delay, missileSpeed, range, collisionable, path, avgt, movt, avgp, anglediff, from, rangeCheckFrom));
}
var pred = LinePrediction.GetLinePrediction(target, 80f, delay, missileSpeed, range, collisionable, path, avgt, movt, avgp, anglediff, from, rangeCheckFrom);
if (pred.HitChance >= HitChance.Low)
{
pred.CastPosition = (from + (pred.CastPosition - from).Normalized() * range);
var cos = (float)Math.Cos((1 - pred.UnitPosition.Distance(from) / 820f) * Math.PI / 2);
var sin = (float)Math.Sin((1 - pred.UnitPosition.Distance(from) / 820f) * Math.PI / 2);
var x = cos * (pred.CastPosition.X - from.X) - sin * (pred.CastPosition.Y - from.Y) + from.X;
var y = sin * (pred.CastPosition.X - from.X) + cos * (pred.CastPosition.Y - from.Y) + from.Y;
pred.CastPosition = new Vector2(x, y);
}
return(pred);
}
var result = new PredictionResult();
if (path.Count <= 1) //if target is not moving, easy to hit
{
result.HitChance = HitChance.Immobile;
result.CastPosition = target.PreviousPosition.ToVector2();
result.UnitPosition = result.CastPosition;
return(result);
}
if (target is AIHeroClient aiHero && aiHero.IsCastingImporantSpell())
{
result.HitChance = HitChance.Immobile;
result.CastPosition = aiHero.PreviousPosition.ToVector2();
result.UnitPosition = result.CastPosition;
return(result);
}
if (target.IsImmobileTarget())
{
return(PredictionExtensions.GetImmobilePrediction(target, width, delay, missileSpeed, range, collisionable, SpellType.Circle, from, rangeCheckFrom));
}
if (target.IsDashing())
{
return(PredictionExtensions.GetDashingPrediction(target, width, delay, missileSpeed, range, collisionable, SpellType.Circle, from, rangeCheckFrom));
}
var targetDistance = rangeCheckFrom.Distance(target.PreviousPosition);
var flyTime = 0f;
if (missileSpeed != 0)
{
var Vt = (path[path.Count - 1] - path[0]).Normalized() * target.MoveSpeed;
var Vs = (target.PreviousPosition.ToVector2() - rangeCheckFrom).Normalized() * missileSpeed;
var Vr = Vs - Vt;
flyTime = targetDistance / Vr.Length();
if (path.Count > 5)
{
flyTime = targetDistance / missileSpeed;
}
}
var t = flyTime + delay + Game.Ping / 2000f + Program.SpellDelay / 1000f;
result.HitChance = PredictionExtensions.GetHitChance(t * 1000f, avgt, movt, avgp, anglediff);
//arc collision test
if (result.HitChance > HitChance.Low)
{
for (var i = 1; i < path.Count; i++)
{
var senderPos = rangeCheckFrom;
var testPos = path[i];
var multp = (testPos.Distance(senderPos) / 875.0f);
var dianaArc = new Geometry.Polygon(
ClipperWrapper.DefineArc(senderPos - new Vector2(875 / 2f, 20), testPos, (float)Math.PI * multp, 410, 200 * multp),
ClipperWrapper.DefineArc(senderPos - new Vector2(875 / 2f, 20), testPos, (float)Math.PI * multp, 410, 320 * multp));
if (!dianaArc.IsOutside(target.PreviousPosition.ToVector2()))
{
result.HitChance = HitChance.VeryHigh;
result.CastPosition = testPos;
result.UnitPosition = testPos;
return(result);
}
}
}
return(CirclePrediction.GetPrediction(target, width, delay, missileSpeed, range, collisionable, path, avgt, movt, avgp, anglediff, @from, rangeCheckFrom));
}
