/// <summary>
/// Destination for a movement. Ignores all robots on the map but does take into account walls, conveyor belts and gears. Returns
/// the final location of the move.
/// </summary>
/// <param name="map">The game map.</param>
/// <param name="startLocation">Where the unit starts.</param>
/// <param name="cards">The cards to apply.</param>
/// <returns>The final location of the move.</returns>
public static MovePoint CardDestination(GameMap map, BoardLocation startLocation, IEnumerable<Card> cards)
{
List<MovePoint> points = CardPath(map, startLocation, cards);
if ((points == null) || (points.Count == 0))
return null;
return points[points.Count - 1];
}
/// <summary>
/// Calculates what damage a unit will receive from lasers at a given location.
/// </summary>
/// <param name="map">The game map.</param>
/// <param name="location">Where the unit is located.</param>
/// <returns>The amount of damage. Will be 0 or 1.</returns>
public static int CalcLaserDamage(GameMap map, BoardLocation location)
{
int damage = 0;
damage += _CalcLaserDamage(map, location.MapPosition, 0, -1, MapSquare.DIRECTION.SOUTH, MapSquare.SIDE.NORTH, MapSquare.SIDE.SOUTH);
damage += _CalcLaserDamage(map, location.MapPosition, 0, 1, MapSquare.DIRECTION.NORTH, MapSquare.SIDE.SOUTH, MapSquare.SIDE.NORTH);
damage += _CalcLaserDamage(map, location.MapPosition, -1, 0, MapSquare.DIRECTION.EAST, MapSquare.SIDE.WEST, MapSquare.SIDE.EAST);
damage += _CalcLaserDamage(map, location.MapPosition, 1, 0, MapSquare.DIRECTION.WEST, MapSquare.SIDE.EAST, MapSquare.SIDE.WEST);
return damage;
}
/// <summary>
/// Destination for a movement. Ignores all robots on the map but does take into account walls, conveyor belts and gears. Returns
/// every step of the move.
/// </summary>
/// <param name="map">The game map.</param>
/// <param name="startLocation">Where the unit starts.</param>
/// <param name="cards">The cards to apply.</param>
/// <returns>Every step of the move.</returns>
public static List<MovePoint> CardPath(GameMap map, BoardLocation startLocation, IEnumerable<Card> cards)
{
// if we can't move, we end up where we started
List<MovePoint> points = new List<MovePoint> {new MovePoint(startLocation)};
foreach (Card cardOn in cards)
{
// move robot
MovePoint endLocation = Move(map, startLocation, cardOn.Move);
if (endLocation.Dead)
{
points.Add(endLocation);
return points;
}
if (! endLocation.Location.Equals(startLocation))
{
startLocation = endLocation.Location;
points.Add(new MovePoint(startLocation));
}
// conveyor belt - may cause a 1/4 turn.
MapSquare sq = map.GetSquare(startLocation.MapPosition);
for (int speed=1; (sq.Conveyor != null) && (speed <= sq.Conveyor.Speed); speed++)
{
endLocation = Move(map, startLocation.MapPosition, sq.Conveyor.Direction);
BoardLocation locMove = new BoardLocation(endLocation.Location.MapPosition, startLocation.Direction);
sq = map.GetSquare(endLocation.Location.MapPosition);
if (sq.Conveyor != null)
{
MapSquare.DIRECTION dirEnter = MoveDirection(startLocation.MapPosition, endLocation.Location.MapPosition);
locMove = locMove.Rotate((int)sq.Conveyor.Direction - (int)dirEnter);
}
startLocation = locMove;
points.Add(new MovePoint(startLocation));
}
// gears
if (sq.Type == MapSquare.TYPE.ROTATE_CLOCKWISE)
{
startLocation = startLocation.Rotate(1);
points.Add(new MovePoint(startLocation));
}
if (sq.Type == MapSquare.TYPE.ROTATE_COUNTERCLOCKWISE)
{
startLocation = startLocation.Rotate(-1);
points.Add(new MovePoint(startLocation));
}
// damage
int damage = CalcLaserDamage(map, startLocation);
if (damage != 0)
points[points.Count - 1].Damage = damage;
}
return points;
}
/// <summary>
/// Called when your robot must be placed on the board. This is called at the start of the game and each time your robot dies.
/// </summary>
/// <param name="map">The game map. There will be no units on this map.</param>
/// <param name="you">Your player object.</param>
/// <param name="players">All players (including you).</param>
/// <param name="robotStart">The position(s) on the map where you can place your robot. This will be a single point unless another robot is on your archive point.</param>
/// <param name="gameStart">true if start of a game. false if re-entering the game.</param>
/// <returns>Where to place your unit (location and direction.</returns>
public BoardLocation Setup(GameMap map, Player you, List<Player> players, List<Point> robotStart, bool gameStart)
{
return new BoardLocation(robotStart[0], MapSquare.DIRECTION.NORTH);
}
/// <summary>
/// Called each time the system needs another turn. If you do not return a valid turn, the game will randomly move one of your units.
/// This call must return in under 1 second. If it has not returned in 1 second the call will be aborted and a random move will be assigned.
/// </summary>
/// <param name="map">The game map with all units on it.</param>
/// <param name="you">Your player object. This is created for each call.</param>
/// <param name="allPlayers">All players including you. This is created for each call.</param>
/// <param name="cards">The cards you get to pick from. This does not include locked cards.</param>
/// <returns>Your requested turn.</returns>
public PlayerTurn Turn(GameMap map, Player you, List<Player> allPlayers, List<Card> cards)
{
// if hurt bad, consider power down
bool powerDown = false;
if ((you.Damage > 5) && (rand.Next(4) == 0))
powerDown = true;
// get 40 sets, pick the one that's closest to the flag (middle of the board if got all flags)
List<Card> best = null;
int bestDiff = int.MaxValue;
int okDiff = rand.Next(0, 3);
FlagState fs = you.FlagStates.FirstOrDefault(fsOn => !fsOn.Touched);
Point ptFlag = fs == null ? new Point(map.Width / 2, map.Height / 2) : fs.Position;
for (int turnOn = 0; turnOn < 40; turnOn++)
{
// pick NUM_CARDS (or fewer if locked) random cards
List<Card> moveCards = new List<Card>();
bool[] cardUsed = new bool[cards.Count];
for (int ind = 0; ind < NUM_CARDS - you.NumLockedCards; ind++)
for (int iter = 0; iter < 100; iter++) // in case can't work it with these cards
{
int index = rand.Next(cards.Count);
if (cardUsed[index])
continue;
moveCards.Add(cards[index]);
cardUsed[index] = true;
break;
}
// add in the locked cards
for (int ind = NUM_CARDS - you.NumLockedCards; ind < NUM_CARDS; ind++)
moveCards.Add(you.Cards[ind]);
// If all we have are rotates, we add in a move forward 1 so that a card that is a turn can then take into account next time we get a forward 1.
bool addMove = moveCards.All(card => card.IsRotate);
if (addMove)
moveCards.Add(new Card(Card.ROBOT_MOVE.FORWARD_ONE, 500));
// run it
Utilities.MovePoint mp = Utilities.CardDestination(map, you.Robot.Location, moveCards);
// if it kills us we don't want it
if (mp.Dead)
continue;
// if better than before, use it
if (addMove)
moveCards.RemoveAt(moveCards.Count - 1);
int diff = Math.Abs(ptFlag.X - mp.Location.MapPosition.X) + Math.Abs(ptFlag.Y - mp.Location.MapPosition.Y);
if (diff <= okDiff)
return new PlayerTurn(new List<Card>(moveCards), powerDown);
if (diff < bestDiff)
{
bestDiff = diff;
best = moveCards;
}
}
return new PlayerTurn(best == null ? new List<Card>() : new List<Card>(best), powerDown);
}
private static int _CalcLaserDamage(GameMap map, Point position, int xAdd, int yAdd, MapSquare.DIRECTION laserDirection, MapSquare.SIDE wallExit, MapSquare.SIDE wallEnter)
{
int damage = 0;
int x = position.X;
int y = position.Y;
bool startSquare = true;
while ((0 <= x) && (x < map.Width) && (0 <= y) && (y < map.Height))
{
MapSquare sq = map.Squares[x][y];
// can we move into this square?
if ((! startSquare) && ((sq.Walls & wallEnter) != 0))
break;
startSquare = false;
if ((sq.Laser != null) && (sq.Laser.Location.Direction == laserDirection))
{
damage++;
break;
}
// can we move out of this square?
if ((sq.Walls & wallExit) != 0)
break;
x += xAdd;
y += yAdd;
}
return damage;
}
/// <summary>
/// Move a unit one square in the requested direction. Ignores all robots on the map but does take into account walls, conveyor belts and gears.
/// </summary>
/// <param name="map">The game map.</param>
/// <param name="position">The map square to start the move from.</param>
/// <param name="direction">The direction to move.</param>
/// <returns>The final location of the move.</returns>
public static MovePoint Move(GameMap map, Point position, MapSquare.DIRECTION direction)
{
// watch for wall in this direction
MapSquare.SIDE sideExit = sideMoveOut[(int) direction];
MapSquare.SIDE sideEnter = sideMoveIn[(int) direction];
BoardLocation location = new BoardLocation(position, direction);
// can we exit this square?
MapSquare sq = map.GetSquare(position);
if ((sq.Walls & sideExit) != 0)
return new MovePoint(location);
BoardLocation moveTo = location.Move(1);
// did we go off the board?
if ((moveTo.MapPosition.X < 0) || (map.Width <= moveTo.MapPosition.X) ||
(moveTo.MapPosition.Y < 0) || (map.Height <= moveTo.MapPosition.Y))
return new MovePoint(location, true);
// did we go into a pit?
if (map.GetSquare(moveTo.MapPosition).Type == MapSquare.TYPE.PIT)
return new MovePoint(moveTo, true);
// can we enter the new square?
sq = map.GetSquare(moveTo.MapPosition);
if ((sq.Walls & sideEnter) != 0)
return new MovePoint(location);
return new MovePoint(moveTo);
}
/// <summary>
/// Move a unit one card move. Ignores all robots on the map but does take into account walls, conveyor belts and gears.
/// </summary>
/// <param name="map">The game map.</param>
/// <param name="startLocation">Where the unit starts.</param>
/// <param name="move">The move to apply.</param>
/// <returns>The final location of the move.</returns>
public static MovePoint Move(GameMap map, BoardLocation startLocation, Card.ROBOT_MOVE move)
{
int steps = 0;
switch (move)
{
case Card.ROBOT_MOVE.BACKWARD_ONE:
steps = -1;
break;
case Card.ROBOT_MOVE.FORWARD_ONE:
steps = 1;
break;
case Card.ROBOT_MOVE.FORWARD_TWO:
steps = 2;
break;
case Card.ROBOT_MOVE.FORWARD_THREE:
steps = 3;
break;
case Card.ROBOT_MOVE.ROTATE_LEFT:
return new MovePoint(startLocation.Rotate(-1));
case Card.ROBOT_MOVE.ROTATE_RIGHT:
return new MovePoint(startLocation.Rotate(1));
case Card.ROBOT_MOVE.ROTATE_UTURN:
return new MovePoint(startLocation.Rotate(2));
}
MapSquare.DIRECTION dir = steps >= 0 ? startLocation.Direction : startLocation.Rotate(2).Direction;
Point position = startLocation.MapPosition;
while (steps != 0)
{
MovePoint mp = Move(map, position, dir);
if (mp.Dead)
return new MovePoint(new BoardLocation(mp.Location.MapPosition, startLocation.Direction), true);
position = mp.Location.MapPosition;
int singleStep = Math.Max(-1, Math.Min(1, steps));
steps -= singleStep;
}
return new MovePoint(new BoardLocation(position, startLocation.Direction));
}