Module: AsciiToGridFlat

Included in:
AxialGrid
Defined in:
lib/hex/modules/ascii_to_grid_flat.rb

Overview

This module contains the methods relatives to ascii map reading

Instance Method Summary collapse

Instance Method Details

#read_ascii_file_flat_topped_odd(file_path) ⇒ Object

Read an ascii file and load it into the hexagon grid. The input grid is supposed to be odd flat topped (odd-q) and will be stored into an axial representation.

Parameters:



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# File 'lib/hex/modules/ascii_to_grid_flat.rb', line 7

def read_ascii_file_flat_topped_odd( file_path )
  File.open( file_path ) do |file|

    odd = 0
    base_q = 0
    line_q = 0

    file.each_line do |line|
      elements = line.split
      elements.each_with_index do |element, index|
        # puts "element = %c, index = %d || q = %d, r = %d" % [element, index, index*2 + odd, base_q - index]
        # cset( index*2 + odd, base_q - index, color: element.to_sym, border: nil )
        q = index*2 + odd
        r = base_q - index
        @hexes[ [ q, r ] ] = AxialHex.new( q, r, color: element.to_sym )
      end

      odd = ( odd.odd? ? 0 : 1 )

      line_q += 1
      if line_q >= 2
        line_q = 0
        base_q += 1
      end

    end
  end
end

#write_ascii_file_flat_topped_odd(file_path) ⇒ Object

Write an ascii file representing an axial hex grid as an flat topped (odd-q) hex representation.

Parameters:



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# File 'lib/hex/modules/ascii_to_grid_flat.rb', line 40

def write_ascii_file_flat_topped_odd( file_path )
  File.open( file_path, 'w' ) do |file|

    base_r = 0
    base_q = 0
    line_q = 0
    line = []


    loop do
      r = base_r
      q = base_q
      odd = ( base_q == 0 ? '' : ' ' )

      while( ( hex = cget( q, r ) ) ) do
        line << hex.color
        q += 2
        r -= 1
      end

      break if line.empty?

      file.puts( odd + line.join( ' ' ) )

      base_q = ( base_q == 0 ? 1 : 0 )

      line_q += 1
      if line_q >= 2
        line_q = 0
        base_r += 1
      end
      line = []
    end

  end
end