public PlayerState(
int number, string name, ColorState color,
PositionState position, DirectionState direction,
bool alive)
{
this.Number = number;
this.Name = name;
this.Color = color;
this.Position = position;
this.Direction = direction;
this.Alive = alive;
}
/// <summary>
/// 与えられた位置から与えられた方向に進んだ次の位置を求める。
/// 例えば (1, 2), Right を渡すと (2, 2) を返す。
/// </summary>
/// <param name="pos">位置</param>
/// <param name="dir">向き</param>
/// <returns>次の位置</returns>
public static PositionState GetNextPosition(PositionState pos, DirectionState dir)
{
switch (dir.Value)
{
case Direction.Right: return new PositionState(pos.X + 1, pos.Y);
case Direction.RightUp: return new PositionState(pos.X + 1, pos.Y - 1);
case Direction.Up: return new PositionState(pos.X, pos.Y - 1);
case Direction.LeftUp: return new PositionState(pos.X - 1, pos.Y - 1);
case Direction.Left: return new PositionState(pos.X - 1, pos.Y);
case Direction.LeftDown: return new PositionState(pos.X - 1, pos.Y + 1);
case Direction.Down: return new PositionState(pos.X, pos.Y + 1);
case Direction.RightDown: return new PositionState(pos.X + 1, pos.Y + 1);
}
throw new ArgumentException();
}
/// <summary>
/// 与えられた向きを右(時計回り)に45度回転した向きを取得する。
/// </summary>
/// <param name="dir">向き</param>
/// <returns>右に45度回転した向き</returns>
public static DirectionState GetRight(DirectionState dir)
{
switch (dir.Value)
{
case Direction.Right: return new DirectionState(Direction.RightDown);
case Direction.RightUp: return new DirectionState(Direction.Right);
case Direction.Up: return new DirectionState(Direction.RightUp);
case Direction.LeftUp: return new DirectionState(Direction.Up);
case Direction.Left: return new DirectionState(Direction.LeftUp);
case Direction.LeftDown: return new DirectionState(Direction.Left);
case Direction.Down: return new DirectionState(Direction.LeftDown);
case Direction.RightDown: return new DirectionState(Direction.Down);
}
throw new ArgumentException();
}
public InitialPlayerState(PositionState position, DirectionState direction)
{
this.Position = position;
this.Direction = direction;
}
public bool Equals(DirectionState other)
{
if ((object)other == null) return false;
return this.Value.Equals(other.Value);
}
