Class: Board
- Inherits:
-
Object
- Object
- Board
- Defined in:
- lib/board.rb
Instance Attribute Summary collapse
-
#grid ⇒ Object
Returns the value of attribute grid.
Instance Method Summary collapse
-
#add_piece(player_token, location) ⇒ Object
adds a piece to the grid indexes start at 0 from the top left corner of the grid.
-
#available_spaces ⇒ Object
checks for empty(nil) spaces on the grid.
-
#calculate_win ⇒ Object
determines if there is a winning player and returns that player token.
- #clone ⇒ Object
-
#initialize ⇒ Board
constructor
A new instance of Board.
- #print ⇒ Object
- #validate_move(location) ⇒ Object
Constructor Details
#initialize ⇒ Board
Returns a new instance of Board.
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# File 'lib/board.rb', line 4 def initialize @grid = [[nil, nil, nil], [nil, nil, nil], [nil, nil, nil]] end |
Instance Attribute Details
#grid ⇒ Object
Returns the value of attribute grid.
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# File 'lib/board.rb', line 2 def grid @grid end |
Instance Method Details
#add_piece(player_token, location) ⇒ Object
adds a piece to the grid indexes start at 0 from the top left corner of the grid
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# File 'lib/board.rb', line 37 def add_piece(player_token, location) if validate_move(location) @grid[location.first][location.last] = player_token return true else return false end end |
#available_spaces ⇒ Object
checks for empty(nil) spaces on the grid
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# File 'lib/board.rb', line 19 def available_spaces spaces = [] @grid.each_with_index do |column, col_index| column.each_with_index do |space, row_index| spaces << [col_index, row_index] if space == nil end end spaces end |
#calculate_win ⇒ Object
determines if there is a winning player and returns that player token
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# File 'lib/board.rb', line 47 def calculate_win return diagonal_win if diagonal_win return horizontal_win if horizontal_win return vertical_win if vertical_win return 'nobody' if cat_game? end |
#clone ⇒ Object
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# File 'lib/board.rb', line 10 def clone board = Board.new board.grid = [[@grid[0][0], @grid[0][1], @grid[0][2]], [@grid[1][0], @grid[1][1], @grid[1][2]], [@grid[2][0], @grid[2][1], @grid[2][2]]] return board end |
#print ⇒ Object
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# File 'lib/board.rb', line 54 def print disp_grid = [[@grid[0][0], @grid[0][1], @grid[0][2]], [@grid[1][0], @grid[1][1], @grid[1][2]], [@grid[2][0], @grid[2][1], @grid[2][2]]] disp_grid[0][0] = " " if @grid[0][0] == nil disp_grid[0][1] = " " if @grid[0][1] == nil disp_grid[0][2] = " " if @grid[0][2] == nil disp_grid[1][0] = " " if @grid[1][0] == nil disp_grid[1][1] = " " if @grid[1][1] == nil disp_grid[1][2] = " " if @grid[1][2] == nil disp_grid[2][0] = " " if @grid[2][0] == nil disp_grid[2][1] = " " if @grid[2][1] == nil disp_grid[2][2] = " " if @grid[2][2] == nil "\n [#{disp_grid[0][0]}][#{disp_grid[0][1]}][#{disp_grid[0][2]}]\n [#{disp_grid[1][0]}][#{disp_grid[1][1]}][#{disp_grid[1][2]}]\n [#{disp_grid[2][0]}][#{disp_grid[2][1]}][#{disp_grid[2][2]}]\n" end |
#validate_move(location) ⇒ Object
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# File 'lib/board.rb', line 29 def validate_move(location) if location.first && location.last return @grid[location.first][location.last].nil? end end |