/// <summary>Creates a player path.</summary>
public static PlayerPath Create(Position player, Velocity velocity, IPoint target, int fallenTimer, int maxLength, Distance tolerance)
{
var path = new PlayerPath();
for (var fallen = fallenTimer; fallen < 0; fallen++)
{
path.Add(player);
}
var pos = player;
var vel = velocity;
for (var turn = -fallenTimer; turn < maxLength; turn++)
{
if (Distance.Between(pos, target) < tolerance)
{
path.ReachedTarget = true;
break;
}
path.Add(pos);
pos += vel;
vel = NewVelocity(vel, pos, target);
}
return(path);
}
/// <summary>Gets the catch ups for the path.</summary>
public static IEnumerable <CatchUp> GetCatchUps(List <Position> path, int pickUpTimer, IEnumerable <PlayerInfo> players)
{
var queue = new Queue <PlayerInfo>(players);
for (var turn = pickUpTimer; turn < path.Count; turn++)
{
if (queue.Count == 0)
{
break;
}
for (var p = 0; p < queue.Count; p++)
{
var player = queue.Dequeue();
// the player can not run yet.
if (-player.FallenTimer > turn)
{
queue.Enqueue(player); continue;
}
var distanceToBall = Distance.Between(path[turn], player.Position);
var speed = PlayerPath.GetInitialSpeed(player, path[turn]);
var playerReach = PlayerPath.GetDistance(speed, turn + player.FallenTimer, 40);
if (distanceToBall <= playerReach)
{
yield return(new CatchUp()
{
Turn = turn,
Player = player,
Position = path[turn],
});
}
else
{
queue.Enqueue(player);
}
}
}
}