/// <summary>
/// Returns the list of the units that the skillshot will hit before reaching the set positions.
/// </summary>
public 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 objectType in input.CollisionObjects)
{
switch (objectType)
{
case CollisionableObjects.Minions:
foreach (var minion in
ObjectManager.Get <Obj_AI_Minion>()
.Where(
minion =>
minion.IsValidTarget(
Math.Min(input.Range + input.Radius + 100, 2000), true,
input.RangeCheckFrom)))
{
input.Unit = minion;
var minionPrediction = Prediction.GetPrediction(input, false, false);
if (
minionPrediction.UnitPosition.To2D()
.Distance(input.From.To2D(), position.To2D(), true, true) <=
Math.Pow((input.Radius + 15 + minion.BoundingRadius), 2))
{
result.Add(minion);
}
}
break;
case CollisionableObjects.Heroes:
foreach (var hero in
HeroManager.Enemies.FindAll(
hero =>
hero.IsValidTarget(
Math.Min(input.Range + input.Radius + 100, 2000), true, input.RangeCheckFrom))
)
{
input.Unit = hero;
var prediction = Prediction.GetPrediction(input, false, false);
if (
prediction.UnitPosition.To2D()
.Distance(input.From.To2D(), position.To2D(), true, 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.To2D().Extend(position.To2D(), step * i);
if (NavMesh.GetCollisionFlags(p.X, p.Y).HasFlag(CollisionFlags.Wall))
{
result.Add(ObjectManager.Player);
}
}
break;
case CollisionableObjects.YasuoWall:
if (Utils.TickCount - _wallCastT > 4000)
{
break;
}
GameObject wall = null;
foreach (var gameObject in
ObjectManager.Get <GameObject>()
.Where(
gameObject =>
gameObject.IsValid &&
Regex.IsMatch(
gameObject.Name, "_w_windwall_enemy_0.\\.troy", RegexOptions.IgnoreCase))
)
{
wall = gameObject;
}
if (wall == null)
{
break;
}
var level = wall.Name.Substring(wall.Name.Length - 6, 1);
var wallWidth = (300 + 50 * Convert.ToInt32(level));
var wallDirection =
(wall.Position.To2D() - _yasuoWallCastedPos).Normalized().Perpendicular();
var wallStart = wall.Position.To2D() + wallWidth / 2f * wallDirection;
var wallEnd = wallStart - wallWidth * wallDirection;
if (wallStart.Intersection(wallEnd, position.To2D(), input.From.To2D()).Intersects)
{
var t = Utils.TickCount +
(wallStart.Intersection(wallEnd, position.To2D(), input.From.To2D())
.Point.Distance(input.From) / input.Speed + input.Delay) * 1000;
if (t < _wallCastT + 4000)
{
result.Add(ObjectManager.Player);
}
}
break;
}
}
}
return(result.Distinct().ToList());
}
public static PredictionOutput GetPrediction(PredictionInput input)
{
var mainTargetPrediction = Prediction.GetPrediction(input, false, true);
var posibleTargets = new List <PossibleTarget>
{
new PossibleTarget {
Position = mainTargetPrediction.UnitPosition.To2D(), 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)
{
var targetCandidates = GetCandidates(
input.From.To2D(), target.Position, (input.Radius), input.Range);
candidates.AddRange(targetCandidates);
}
var bestCandidateHits = -1;
var bestCandidate = new Vector2();
var bestCandidateHitPoints = new List <Vector2>();
var positionsList = posibleTargets.Select(t => t.Position).ToList();
foreach (var candidate in candidates)
{
if (
GetHits(
input.From.To2D(), candidate, (input.Radius + input.Unit.BoundingRadius / 3 - 10),
new List <Vector2> {
posibleTargets[0].Position
}).Count() == 1)
{
var hits = GetHits(input.From.To2D(), 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 = new Vector2(), p2 = new Vector2();
//Center the position
for (var i = 0; i < bestCandidateHitPoints.Count; i++)
{
for (var j = 0; j < bestCandidateHitPoints.Count; j++)
{
var startP = input.From.To2D();
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,
_aoeTargetsHitCount = bestCandidateHits,
UnitPosition = mainTargetPrediction.UnitPosition,
CastPosition = ((p1 + p2) * 0.5f).To3D(),
Input = input
});
}
}
return(mainTargetPrediction);
}