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Copy pathProgram.cs
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1023 lines (761 loc) · 26.2 KB
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using System;
using System.Collections.Generic;
using System.Linq;
namespace CoderStrikeBack
{
#region Program
class Program
{
public const int CountPlayerPod = 2;
public const int CountOpponentPod = 2;
static void Main()
{
var consoleBuilder = new ConsoleBuilder();
var race = consoleBuilder.GetRace();
// game loop
while (true)
{
consoleBuilder.UpdateRace(race);
var nextCommands = race.ComputeNextCommands();
consoleBuilder.ExecuteCommands(nextCommands);
}
}
}
#endregion
#region GameBuilder
public class ConsoleBuilder
{
public Race GetRace()
{
var laps = GetLaps();
var checkpointList = GetCheckpointList();
return Race.Create(laps, checkpointList);
}
public void UpdateRace(Race race)
{
UpdatePlayerPodList(race);
UpdateOpponentPodList(race);
}
public void ExecuteCommands(PodCommandList nextCommands)
{
foreach (var podCommand in nextCommands.CommandList)
{
Console.WriteLine(podCommand.Command);
}
}
private static IList<Checkpoint> GetCheckpointList()
{
var checkpointCount = int.Parse(Console.ReadLine());
var checkpointList = new List<Checkpoint>();
for (var i = 0; i < checkpointCount; i++)
{
checkpointList.Add(Checkpoint.CreateFromLine(checkpointCount, Console.ReadLine()));
}
return checkpointList;
}
private static int GetLaps()
{
return int.Parse(Console.ReadLine());
}
private static void UpdateOpponentPodList(Race race)
{
for (var i = 0; i < Program.CountOpponentPod; i++)
{
race.UpdateOpponentPod(i, Console.ReadLine());
}
}
private static void UpdatePlayerPodList(Race race)
{
for (var i = 0; i < Program.CountPlayerPod; i++)
{
race.UpdatePlayerPod(i, Console.ReadLine());
}
}
}
#endregion
#region PodCommand
public class PodCommandList
{
private List<PodCommand> list;
public PodCommandList()
{
CommandList = new List<PodCommand>();
}
public PodCommandList(List<PodCommand> list)
{
CommandList = list;
}
public List<PodCommand> CommandList { get; set; }
}
public abstract class PodCommand
{
protected PodCommand(Point targetPosition)
{
if (targetPosition == null) throw new ArgumentNullException("targetPosition");
TargetPosition = targetPosition;
}
public Point TargetPosition { get; set; }
public virtual string Command { get { return TargetPosition.ToString(); } }
}
public class AcceleratePodCommand : PodCommand
{
public AcceleratePodCommand(Point targetPosition, int power) : base(targetPosition)
{
Power = power;
}
public int Power { get; set; }
public override string Command
{
get { return string.Format("{0} {1}", base.Command, Power); }
}
}
public class ShieldPodCommand : PodCommand
{
public ShieldPodCommand(Point targetPosition) : base(targetPosition) { }
public override string Command
{
get { return string.Format("{0} SHIELD", base.Command); }
}
}
#endregion
#region Race
public class Race
{
#region Constructors
private Race() { }
#endregion
#region Porperties
public int Laps { get; set; }
public IList<Checkpoint> CheckpointList { get; set; }
public List<Pod> PlayerPodList { get; set; }
public List<Pod> OpponentPodList { get; set; }
#endregion
#region Pod Commands
public PodCommandList ComputeNextCommands()
{
return new PodCommandList(PlayerPodList.Select(ComputeNextCommand).ToList());
}
public PodCommand ComputeNextCommand(Pod podToMove)
{
if (podToMove == null) return null;
return podToMove.ComputeNextCommand();
}
#endregion
#region Refresh game state
public void UpdatePlayerPod(int index, string line)
{
PlayerPodList[index].Update(line);
}
public void UpdateOpponentPod(int index, string line)
{
OpponentPodList[index].Update(line);
}
#endregion
#region Services
public Checkpoint GetFirstCheckPoint()
{
return CheckpointList.First();
}
public Checkpoint GetCheckpoint(int nextCheckPointId)
{
return CheckpointList[nextCheckPointId];
}
public Checkpoint GetLastCheckPoint()
{
return CheckpointList.Last();
}
public Checkpoint GetNextCheckpoint(Checkpoint currentTarget)
{
var currentIndex = CheckpointList.IndexOf(currentTarget);
if (IsLastCheckpointIndex(currentIndex)) return GetFirstCheckPoint();
return CheckpointList[currentIndex + 1];
}
private bool IsLastCheckpointIndex(int currentIndex)
{
return CheckpointList.Count - 1 == currentIndex;
}
#endregion
#region Factory methods
public static Race Create(int laps, IList<Checkpoint> checkpoints)
{
if (checkpoints == null || checkpoints.Count == 0) throw new ArgumentException("checkpoints");
var result = new Race
{
Laps = laps,
CheckpointList = checkpoints,
PlayerPodList = new List<Pod>(),
OpponentPodList = new List<Pod>()
};
for (var i = 0; i < Program.CountPlayerPod; i++)
{
result.PlayerPodList.Add(Pod.Create(result));
}
for (var i = 0; i < Program.CountOpponentPod; i++)
{
result.OpponentPodList.Add(Pod.Create(result));
}
return result;
}
#endregion
}
#endregion
#region Checkpoint
public class Checkpoint
{
#region Fields
private Circle _circle;
#endregion
#region Constructors
public Checkpoint()
{
_circle = new Circle(new Point(), 400);
}
#endregion
#region Properties
public int Index { get; set; }
public Point Position
{
get { return _circle.Center; }
set { _circle.Center = value; }
}
public double Radius { get { return _circle.Radius; } }
#endregion
#region Services
public bool IsReach(Pod playerPod)
{
if (playerPod == null) return false;
return IsReach(new Vector(playerPod.CurrentPosition, playerPod.CurrentSpeed.Target));
}
public bool IsReach(Point position)
{
return _circle.HasCollision(position);
}
public bool IsReach(Vector AB)
{
return _circle.HasCollision(AB);
}
public bool IsLast(Race race)
{
return race.GetLastCheckPoint() == this;
}
#endregion
#region Factory methods
public static Checkpoint CreateFromLine(int index, string p)
{
return new Checkpoint
{
Index = index,
_circle = new Circle(Point.CreateFromLine(p), 400)
};
}
#endregion
}
#endregion
#region Pod
public class Pod
{
private int _nextCheckpointId;
#region Constantes
private const char INPUT_SEPARATOR = ' ';
#endregion
#region Constructor
public Pod() { }
public Pod(Race currentRace)
{
CurrentRace = currentRace;
}
#endregion
#region Properties
public virtual Point CurrentPosition { get; set; }
public Vector CurrentSpeed { get; set; }
public int AngleGetted { get; set; }
public int Radius { get { return 400; } }
public int Power { get; set; }
public int NextCheckpointId
{
get { return _nextCheckpointId; }
set
{
if (NextCheckpointIsReach(NextCheckpointId, value) && NextCheckpoint.IsLast(CurrentRace)) SetNewLap();
_nextCheckpointId = value;
}
}
public virtual Checkpoint NextCheckpoint { get { return CurrentRace.GetCheckpoint(NextCheckpointId); } }
public virtual Race CurrentRace { get; set; }
public int CurrentLap { get; private set; }
public bool HasLapsRemaining { get { return CurrentLap < CurrentRace.Laps; } }
#endregion
#region Refresh game state
public void Update(string line)
{
if (string.IsNullOrEmpty(line)) throw new ArgumentNullException("line");
var inputs = line.Split(INPUT_SEPARATOR);
if (inputs == null || inputs.Length != 6) throw new ArgumentException(string.Format("La ligne d'entrée n'est pas correctement formatté. Attendu:x y vx vy angle nextCheckPointId. Reçu:{0}", line));
var x = int.Parse(inputs[0]);
var y = int.Parse(inputs[1]);
var vx = int.Parse(inputs[2]);
var vy = int.Parse(inputs[3]);
var angle = int.Parse(inputs[4]);
var nextCheckPointId = int.Parse(inputs[5]);
CurrentPosition = new Point(x, y);
CurrentSpeed = new Vector(vx, vy);
AngleGetted = angle;
NextCheckpointId = nextCheckPointId;
}
private static bool NextCheckpointIsReach(int actualNextCheckpoint, int newNextCheckPointId)
{
return actualNextCheckpoint != newNextCheckPointId;
}
#endregion
#region Services
public void SetNewLap()
{
CurrentLap++;
}
public bool IsLastCheckpointLap()
{
return CurrentRace.GetLastCheckPoint() == NextCheckpoint;
}
public bool HasReachTarget()
{
return NextCheckpoint.IsReach(this);
}
public static Vector NextSpeed(Vector currentSpeed, int power)
{
var newSpeed = currentSpeed.Sum(new Vector(power, currentSpeed.Alpha));
var radAlpha = Vector.DegreeToRad(newSpeed.Alpha);
var x = (long)Math.Truncate(Math.Cos(radAlpha) * newSpeed.Norm * 0.85);
var y = (long)Math.Truncate(Math.Sin(radAlpha) * newSpeed.Norm * 0.85);
return new Vector(new Point(0, 0), new Point(x, y));
}
public PodCommand ComputeNextCommand()
{
bool? accelerate;
var canReachNextPointWithoutPower = CanReachNextPointWithoutPower(CurrentSpeed, new Point(CurrentPosition), AngleGetted, out accelerate);
if (canReachNextPointWithoutPower == null)
{
if (accelerate.GetValueOrDefault()) return new AcceleratePodCommand(NextCheckpoint.Position, 200);
else return new AcceleratePodCommand(NextCheckpoint.Position, 0);
}
var nextNextCheckpoint = CurrentRace.GetNextCheckpoint(NextCheckpoint);
var virageAngle = Angle.CreateFromPoint(CurrentPosition, NextCheckpoint.Position, nextNextCheckpoint.Position);
var strategy = TurnStrategyFactory.Create(virageAngle);
if (canReachNextPointWithoutPower.Norm < strategy.MaxSpeed) return new AcceleratePodCommand(NextCheckpoint.Position, 200);
return new AcceleratePodCommand(nextNextCheckpoint.Position, 0);
}
private Vector CanReachNextPointWithoutPower(Vector currentSpeed, Point currentPosition, int currentAngle, out bool? accelerate)
{
if (currentSpeed.Norm == 0)
{
accelerate = true;
return null;
}
currentPosition.Add(currentSpeed);
var nextSpeed = NextSpeed(currentSpeed, 0);
int nextAngle;
var Bv = new Vector(currentPosition, currentSpeed.Target);
var B = new Point(Bv.X, Bv.Y);
var angleMax = Angle.CreateFromPoint(NextCheckpoint.Position, CurrentPosition, B);
if (angleMax.ValueInDegree > 18) nextAngle = currentAngle - 18;
else nextAngle = currentAngle - angleMax.ValueInDegree;
var isReach = NextCheckpoint.IsReach(new Vector(currentPosition, currentSpeed.Target));
Console.Error.WriteLine("ComputeArrivedSpeedWithPower. currentSpeed:{0}. currentPosition:{1}. isReach:{2}. Checkpoint:{3}.", currentSpeed, currentPosition, isReach, NextCheckpoint.Position);
if (isReach)
{
if (nextAngle == 0)
{
accelerate = null;
return nextSpeed;
}
else
{
accelerate = false;
return null;
}
}
return CanReachNextPointWithoutPower(nextSpeed, currentPosition, nextAngle, out accelerate);
}
#endregion
#region Factory methods
public static Pod Create(Race currentRace)
{
if (currentRace == null) throw new ArgumentNullException("currentRace");
return new Pod(currentRace)
{
CurrentLap = 1
};
}
#endregion
}
#endregion
#region TurnStragegy
public class TurnStrategyFactory
{
public static TurnStrategy Create(Angle virageAngle)
{
if (virageAngle.ValueInDegree > 135) return new LargeTurnStrategy();
if (virageAngle.ValueInDegree > 90) return new MediumTurnStrategy();
if (virageAngle.ValueInDegree > 45) return new SmallTurnStrategy();
return new SpinTurnStrategy();
}
}
public abstract class TurnStrategy
{
protected const int POWER_MAX = 200;
protected const int MAX_SPEED_ANGLE_CELCIUS = 18;
public abstract double MaxSpeed { get; }
}
public class LargeTurnStrategy : TurnStrategy
{
public override double MaxSpeed { get { return 150; } }
}
public class MediumTurnStrategy : TurnStrategy
{
public override double MaxSpeed { get { return 100; } }
}
public class SmallTurnStrategy : TurnStrategy
{
public override double MaxSpeed { get { return 50; } }
}
public class SpinTurnStrategy : TurnStrategy
{
public override double MaxSpeed { get { return 10; } }
}
#endregion
#region Geometrie
#region Point
public class Point : IEquatable<Point>
{
#region Constantes
private const char INPUT_SEPARATOR = ' ';
#endregion
#region Constructors
public Point() { }
public Point(long x, long y)
{
X = x;
Y = y;
}
public Point(Point point)
{
if (point == null) throw new ArgumentNullException("point");
X = point.X;
Y = point.Y;
}
#endregion
#region Properties
public long X { get; set; }
public long Y { get; set; }
#endregion
#region Services
public override string ToString()
{
return string.Format("{0} {1}", X, Y);
}
public override bool Equals(object other)
{
return Equals(other as Point);
}
public bool Equals(Point other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return X == other.X && Y == other.Y;
}
public override int GetHashCode()
{
unchecked
{
return (X.GetHashCode() * 397) ^ Y.GetHashCode();
}
}
public static bool operator ==(Point left, Point right)
{
return Equals(left, right);
}
public static bool operator !=(Point left, Point right)
{
return !Equals(left, right);
}
#endregion
#region Factory methods
public static Point CreateFromLine(string line)
{
if (string.IsNullOrEmpty(line)) throw new ArgumentNullException("line");
var inputs = line.Split(INPUT_SEPARATOR);
if (inputs == null || inputs.Length != 2) throw new ArgumentException(string.Format("La ligne d'entrée n'est pas correctement formatté. Attendu:x y. Reçu:{0}", line));
var checkpointX = int.Parse(inputs[0]);
var checkpointY = int.Parse(inputs[1]);
return new Point(checkpointX, checkpointY);
}
public void Add(Vector currentSpeed)
{
if (currentSpeed == null) return;
X += currentSpeed.X;
Y += currentSpeed.Y;
}
#endregion
}
#endregion
#region Circle
public class Circle
{
private Point _center;
private double _radius;
public Point Center
{
get
{
return _center;
}
set
{
if (value == null) throw new ArgumentNullException();
_center = value;
}
}
public double Radius
{
get
{
return _radius;
}
set
{
if (value <= 0) throw new ArgumentException("Le rayon doit être supérieur à 0");
_radius = value;
}
}
public Circle(Point center, double radius)
{
Center = center;
Radius = radius;
}
public bool HasCollision(Point position)
{
var deltaXSquared = Math.Pow(Center.X - position.X, 2);
var deltaYSquared = Math.Pow(Center.Y - position.Y, 2);
var radiusSquared = Math.Pow(Radius, 2);
return (deltaXSquared + deltaYSquared) <= radiusSquared;
}
public bool HasCollision(Vector AB)
{
// A : Origine Segment
// B : Target Segment
// C : Circle center
// I : Projection orthogonal de C sur la droite AB.
var AC = new Vector(AB.Origin, Center);
double numerateur = Math.Abs(AB.X * AC.Y - AB.Y * AC.X); // norme du vecteur v
double denominateur = AB.Norm;
double CI = numerateur / denominateur;
if (CI > Radius) return false;
// A partir d'ici la droite du vecteur coupe le cercle
// Reste à voir si le vecteur est dedans ou à l'extérieur.
Vector BC = new Vector(AB.Target, Center);
float pscal1 = AB.X * AC.X + AB.Y * AC.Y; // produit scalaire
float pscal2 = (-AB.X) * BC.X + (-AB.Y) * BC.Y; // produit scalaire
if (pscal1 >= 0 && pscal2 >= 0)
return true; // I entre A et B, ok.
// dernière possibilité, A ou B dans le cercle
if (HasCollision(AB.Origin))
return true;
if (HasCollision(AB.Target))
return true;
return false;
}
}
#endregion
#region Angle
public class Angle
{
#region Constructor
private Angle(Vector v1, Vector v2)
{
V1 = v1;
V2 = v2;
}
#endregion
#region Properties
public Vector V1 { get; private set; }
public Vector V2 { get; private set; }
public double Cos { get { return -V1.Scalar(V2) / (V1.Norm * V2.Norm); } }
public int ValueInDegree { get { return (int)Math.Round(RadToDegree(ValueInRadian)); } }
public double ValueInRadian { get { return Math.Acos(Cos); } }
private static double RadToDegree(double rad)
{
return (rad * 180) / Math.PI;
}
#endregion
#region Factory methods
public static Angle CreateFromPoint(Point initialPoint, Point throughPoint, Point targetPoint)
{
var v1 = new Vector(initialPoint, throughPoint);
var v2 = new Vector(throughPoint, targetPoint);
return CreateFromVector(v1, v2);
}
public static Angle CreateFromVector(Vector v1, Vector v2)
{
if (v1.Norm <= 0) return null;
if (v2.Norm <= 0) return null;
return new Angle(v1, v2);
}
#endregion
}
#endregion
#region Vector
public class Vector : IEquatable<Vector>
{
#region Constructors
public Vector(int x, int y) : this (new Point(x, y)) { }
public Vector(Point p)
{
Origin = new Point(0, 0);
Target = p;
}
public Vector(double norm, double alpha)
{
Origin = new Point(0, 0);
var radAlpha = DegreeToRad(alpha);
var x = (long)Math.Round(Math.Cos(radAlpha) * norm);
var y = (long)Math.Round(Math.Sin(radAlpha) * norm);
Target = new Point(x, y);
}
public Vector(Point origin, Point target)
{
if (origin == null) throw new ArgumentNullException("origin");
if (target == null) throw new ArgumentNullException("target");
Origin = origin;
Target = target;
}
public Vector(Vector left) : this(left.Origin, left.Target) { }
public Vector(Point origin, long x, long y)
{
if (origin == null) throw new ArgumentNullException("origin");
Origin = origin;
Target = new Point(Origin.X + x, Origin.Y + y);
}
public Vector(int x1, int y1, int x2, int y2) : this(new Point(x1, y1), new Point(x2, y2)) { }
#endregion
#region Properties
public long X
{
get { return Target.X - Origin.X; }
set { Target.X = value + Origin.X; }
}
public long Y
{
get { return Target.Y - Origin.Y; }
set { Target.Y = value + Origin.Y; }
}
public double Alpha
{
get
{
if (X > 0 && Y == 0) return 0;
if (X == 0 && Y > 0) return 90;
if (X == 0 && Y < 0) return -90;
if (X < 0 && Y == 0) return 180;
var result = X > 0 ? RadToDegree(GetAtanYX()) : RadToDegree(GetAtanXY()) + 90;
if (Y < 0) result *= -1;
return result;
}
}
public Point Origin { get; private set; }
public Point Target { get; private set; }
public double Norm
{
get { return Math.Sqrt(Math.Pow(X, 2) + Math.Pow(Y, 2)); }
}
private double GetAtanYX()
{
return Math.Atan(Math.Abs((double)Y / X));
}
private double GetAtanXY()
{
return Math.Atan(Math.Abs((double)X / Y));
}
#endregion
#region Services
public override bool Equals(object other)
{
return Equals(other as Vector);
}
public bool Equals(Vector other)
{
if (ReferenceEquals(null, other)) return false;
if (ReferenceEquals(this, other)) return true;
return Equals(Origin, other.Origin) && Equals(Target, other.Target);
}
public override int GetHashCode()
{
unchecked
{
return ((Origin != null ? Origin.GetHashCode() : 0) * 397) ^ (Target != null ? Target.GetHashCode() : 0);
}
}
public override string ToString()
{
return string.Format("Origine:{0}. Target:{1}.", Origin, Target);
}
public static Vector operator *(Vector left, double right)
{
return new Vector(left.Norm * right, left.Alpha);
}
public static Vector operator *(double left, Vector right)
{
return right * left;
}
public static bool operator ==(Vector left, Vector right)
{
return Equals(left, right);
}
public static bool operator !=(Vector left, Vector right)
{
return !Equals(left, right);
}
public long Scalar(Vector other)
{
if (other == null) throw new ArgumentNullException("other");
return X*other.X + Y*other.Y;
}
public Vector Sum(Vector ac)
{
return new Vector(Origin, X + ac.X, Y + ac.Y);
}
public Vector Opposite()
{
return new Vector(Target, Origin);
}
#endregion
#region Utils
public static double RadToDegree(double rad)
{
return (rad * 180) / Math.PI;
}
public static double DegreeToRad(double degree)
{
return degree * Math.PI / 180;
}
#endregion
}
#endregion
#endregion
#region Utils