Class: GameState

Inherits:
Object
  • Object
show all
Defined in:
lib/software_challenge_client/game_state.rb

Overview

The state of a game

Author:

  • Ralf-Tobias Diekert

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ GameState

Returns a new instance of GameState.



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# File 'lib/software_challenge_client/game_state.rb', line 38

def initialize
  self.currentPlayerColor = PlayerColor::RED
  self.startPlayerColor = PlayerColor::RED
  self.board = Board.new(true)
end

Instance Attribute Details

#blue ⇒ Player (readonly)

Returns the blue player.

Returns:

  • (Player) —

    the blue player



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# File 'lib/software_challenge_client/game_state.rb', line 27

def blue
  @blue
end

#board ⇒ Board

Returns the game’s board.

Returns:

  • (Board) —

    the game’s board



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# File 'lib/software_challenge_client/game_state.rb', line 30

def board
  @board
end

#condition ⇒ Condition

Returns the winner and winning reason.

Returns:

  • (Condition) —

    the winner and winning reason



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# File 'lib/software_challenge_client/game_state.rb', line 36

def condition
  @condition
end

#currentPlayerColor ⇒ PlayerColor

Returns the current player’s color.

Returns:



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# File 'lib/software_challenge_client/game_state.rb', line 21

def currentPlayerColor
  @currentPlayerColor
end

#lastMove ⇒ Move

Returns the last move, that was made.

Returns:

  • (Move) —

    the last move, that was made



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# File 'lib/software_challenge_client/game_state.rb', line 33

def lastMove
  @lastMove
end

#red ⇒ Player (readonly)

Returns the red player.

Returns:



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# File 'lib/software_challenge_client/game_state.rb', line 24

def red
  @red
end

#startPlayerColor ⇒ PlayerColor

Returns the start-player’s color.

Returns:



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# File 'lib/software_challenge_client/game_state.rb', line 18

def startPlayerColor
  @startPlayerColor
end

#turn ⇒ Integer

Returns turn number.

Returns:

  • (Integer) —

    turn number



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# File 'lib/software_challenge_client/game_state.rb', line 15

def turn
  @turn
end

Instance Method Details

#addPlayer(player) ⇒ Object

adds a player to the gamestate

Parameters:

  • player (Player) —

    the player, that will be added



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# File 'lib/software_challenge_client/game_state.rb', line 47

def addPlayer(player) 
  if player.color == PlayerColor::RED 
    @red = player
  else if player.color == PlayerColor::BLUE
      @blue = player
    end
  end
end

#bottomMostFieldInCircuit(circuit) ⇒ Object

the following functions are helpers for the points calculation



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# File 'lib/software_challenge_client/game_state.rb', line 278

def bottomMostFieldInCircuit(circuit)
  bottomMostField = circuit[0]
  for f in circuit
    if f.y < bottomMostField.y
      bottomMostField = f
    end
  end
  return bottomMostField
end

#circuit(circuit, visited) ⇒ Object 



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# File 'lib/software_challenge_client/game_state.rb', line 318

def circuit(circuit, visited)
  changed = false;
  toBeAddedFields = Array.new
  for f in circuit
    if !visited.include?(f)
      changed = true
      visited.push(f)
      for c in self.board.getConnections(f.x,f.y)
        if !circuit.include?(self.board.fields[c.x2][c.y2])
          toBeAddedFields.push(self.board.fields[c.x2][c.y2])
        end
        if !circuit.include?(self.board.fields[c.x1][c.y1])
          toBeAddedFields.push(self.board.fields[c.x1][c.y1])
        end
      end
    end
  end
  circuit.push(*toBeAddedFields)
  if changed
    return self.circuit(circuit, visited)
  else 
    return circuit
  end
end

#currentPlayer ⇒ Player

gets the current player

Returns:

  • (Player) —

    the current player



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# File 'lib/software_challenge_client/game_state.rb', line 59

def currentPlayer
  if self.currentPlayerColor == PlayerColor::RED
    return self.red
  else
    return self.blue
  end
end

#endGame(winner, reason) ⇒ Object

sets the game-ended condition

Parameters:

  • winner (Player) —

    the winner of the game

  • reason (String) —

    the winning reason



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# File 'lib/software_challenge_client/game_state.rb', line 202

def endGame(winner, reason)
  if condition.nil?
    @condition = Condition.new(winner, reason)
  end
end

#gameEnded? ⇒ Boolean

has the game ended?

Returns:

  • (Boolean) —

    true, if the game has allready ended



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# File 'lib/software_challenge_client/game_state.rb', line 211

def gameEnded?
  return !self.condition.nil?
end

#gameStats ⇒ Array<Integer>

gets the players’ statistics

Returns:

  • (Array<Integer>) —

    the points for both players



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# File 'lib/software_challenge_client/game_state.rb', line 182

def gameStats
  stats = Array.new(2, Array.new(1))

  stats[0][0] = self.red.points
  stats[1][0] = self.blue.points
  
  return stats
end

#getPossibleMoves ⇒ Array<Move>

gets all possible moves

Returns:

  • (Array<Move>) —

    a list of all possible moves



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# File 'lib/software_challenge_client/game_state.rb', line 124

def getPossibleMoves
  enemyFieldType = currentPlayer.color == PlayerColor::RED ? FieldType::BLUE : FieldType::RED
  moves = Array.new
  for x in 0..(Constants::SIZE-1)
    for y in 0..(Constants::SIZE-1)
      if (self.board.fields[x][y].ownerColor == PlayerColor::NONE &&
            self.board.fields[x][y].type != FieldType::SWAMP &&
            self.board.fields[x][y].type != enemyFieldType)
        moves.push(Move.new(x, y))
      end
    end
  end
  return moves
end

#leftMostFieldInCircuit(circuit) ⇒ Object 



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# File 'lib/software_challenge_client/game_state.rb', line 298

def leftMostFieldInCircuit(circuit)
  leftMostField = circuit[0]
  for f in circuit
    if f.x < leftMostField.x
      leftMostField = f
    end
  end
  return leftMostField
end

#otherPlayer ⇒ Player

gets the other (not the current) player

Returns:

  • (Player) —

    the other (not the current) player



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# File 'lib/software_challenge_client/game_state.rb', line 70

def otherPlayer
  if self.currentPlayerColor == PlayerColor::RED
    return self.blue 
  else
    return self.red
  end
end

#otherPlayerColor ⇒ PlayerColor

gets the other (not the current) player’s color

Returns:

  • (PlayerColor) —

    the other (not the current) player’s color



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# File 'lib/software_challenge_client/game_state.rb', line 81

def otherPlayerColor
  return PlayerColor.opponentColor(self.currentPlayerColor)
end

#perform(move, player) ⇒ Object

performs a move on the gamestate

Parameters:

  • move (Move) —

    the move, that will be performed

  • player (Player) —

    the player, who makes the move



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# File 'lib/software_challenge_client/game_state.rb', line 143

def perform(move, player)
  if !move.nil?
    if move.x < Constants::SIZE && move.y < Constants::SIZE && 
        move.x >= 0 && move.y >= 0
      if self.getPossibleMoves.include?(move) 
        self.board.put(move.x, move.y, player)
        player.points = self.pointsForPlayer(player)      
      else
        raise "Der Zug ist nicht möglich, denn der Platz ist bereits besetzt oder nicht besetzbar."
      end
    else
      raise "Startkoordinaten sind nicht innerhalb des Spielfeldes."
    end
  end
end

#playerNames ⇒ Array<String>

get the players’ names

Returns:

  • (Array<String>) —

    the names for both players



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# File 'lib/software_challenge_client/game_state.rb', line 194

def playerNames
  return [red.displayName, blue.displayName]
end

#playerStats(playerColor) ⇒ Integer

gets a player’s points by the player’s color

Parameters:

  • playerColor (PlayerColor) —

    the player’s color, whos statistics will be returned

Returns:

  • (Integer) —

    the points of the player



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# File 'lib/software_challenge_client/game_state.rb', line 163

def playerStats(player)
  return self.playerStats(player.color)
end

#pointsForPlayer(player) ⇒ Integer

calculates a player’s points

 @param player [Player] the player, whos point will be calculated

Returns:

  • (Integer) —

    the points of the player



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# File 'lib/software_challenge_client/game_state.rb', line 233

def pointsForPlayer(player)
  playerColor = player.color
  longestPath = 0

  outermostFieldsInCircuit = Array.new(Array.new)
  visited = Array.new(Constants::SIZE).map {|j| Array.new(Constants::SIZE).map {|i| false}} #// all by default initialized to false
  for x in 0..(Constants::SIZE-1)
    for y in 0..(Constants::SIZE-1)
      if visited[x][y] == false
        if self.board.fields[x][y].ownerColor == playerColor
          startOfCircuit = Array.new
          startOfCircuit.push(self.board.fields[x][y])
          circuit = self.circuit(startOfCircuit, Array.new)
          for f in circuit
            visited[f.x][f.y] = true
          end
          outermost = Array.new(2)
          if playerColor == PlayerColor::RED

            outermost[0] = self.bottomMostFieldInCircuit(circuit)
            outermost[1] = self.topMostFieldInCircuit(circuit)
          else
            outermost[0] = leftMostFieldInCircuit(circuit)
            outermost[1] = rightMostFieldInCircuit(circuit)
          end
          outermostFieldsInCircuit.push(outermost)

        end
        visited[x][y] = true
      end
    end
  end
  for fields in outermostFieldsInCircuit
    if (playerColor == PlayerColor::RED && fields[1].y - fields[0].y > longestPath)
      longestPath = fields[1].y - fields[0].y
    end
    if (playerColor == PlayerColor::BLUE && fields[1].x - fields[0].x > longestPath)
      longestPath = fields[1].x - fields[0].x
    end
  end
  
  return longestPath # return longestPath
end

#prepareNextTurn(lastMove) ⇒ Object

prepares next turn and sets the last move

Parameters:

  • the (Move) —

    last move



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# File 'lib/software_challenge_client/game_state.rb', line 108

def prepareNextTurn(lastMove)
  @turn++
  @lastMove = lastMove;
  self.switchCurrentPlayer()
end

#rightMostFieldInCircuit(circuit) ⇒ Object 



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# File 'lib/software_challenge_client/game_state.rb', line 308

def rightMostFieldInCircuit(circuit)
  rightMostField = circuit[0]
  for f in circuit
    if f.x > rightMostField.x
      rightMostField = f
    end
  end
  return rightMostField
end

#round ⇒ Integer

gets the current round

Returns:

  • (Integer) —

    the current round



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# File 'lib/software_challenge_client/game_state.rb', line 117

def round
  return self.turn / 2
end

#startPlayer ⇒ Player

gets the start player

Returns:

  • (Player) —

    the startPlayer



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# File 'lib/software_challenge_client/game_state.rb', line 88

def startPlayer
  if self.startPlayer == PlayerColor::RED 
    return self.red
  else
    return self.blue
  end
end

#switchCurrentPlayer ⇒ Object

switches current player



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# File 'lib/software_challenge_client/game_state.rb', line 97

def switchCurrentPlayer
  if currentPlayer.color == PlayerColor::RED
    @currentPlayer = self.blue
  else
    @currentPlayer = self.red
  end
end

#topMostFieldInCircuit(circuit) ⇒ Object 



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# File 'lib/software_challenge_client/game_state.rb', line 288

def topMostFieldInCircuit(circuit)
  topMostField = circuit[0]
  for f in circuit
    if f.y > topMostField.y
      topMostField = f
    end
  end
  return topMostField
end

#winner ⇒ Player

gets the game’s winner

Returns:

  • (Player) —

    the game’s winner



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# File 'lib/software_challenge_client/game_state.rb', line 218

def winner
  return condition.nil? ? nil : self.condition.winner
end

#winningReason ⇒ String

gets the winning reason

Returns:

  • (String) —

    the winning reason



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# File 'lib/software_challenge_client/game_state.rb', line 225

def winningReason
  return condition.nil? ? nil : self.condition.reason
end