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-2.2.1.180	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.179	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.178	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.177	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.176	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.175	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.174	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.173	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.172	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.171	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.170	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.169	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.167	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.166	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.165	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.164	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.163	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.162	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.161	tracks/lua/exercises/queen-attack/example.lua
trackler-2.2.1.160	tracks/lua/exercises/queen-attack/example.lua