Contents

return function(pos)
  assert(pos.row >= 0, 'row must be positive')
  assert(pos.row < 8, 'row must be on the board')
  assert(pos.column >= 0, 'column must be positive')
  assert(pos.column < 8, 'column must be on the board')

  return {
    row = pos.row,
    column = pos.column,
    can_attack = function(other)
      local row_difference = math.abs(pos.row - other.row)
      local column_difference = math.abs(pos.column - other.column)

      local same_row = row_difference == 0
      local same_column = column_difference == 0
      local diagonal = row_difference == column_difference

      return same_row or same_column or diagonal
    end
  }
end

Version data entries

115 entries across 115 versions & 1 rubygems

Version	Path
trackler-2.2.1.98	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.97	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.96	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.95	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.94	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.93	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.92	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.91	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.90	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.89	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.88	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.87	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.86	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.85	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.84	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.83	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.82	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.81	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.80	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.79	tracks/lua/exercises/queen-attack/example.lua