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Move setting color logic from convert_hash into initialization. #4

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Move setting color logic from convert_hash into initialization. #4

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b533e8e
Move setting color logic from convert_hash into initialization.
baxter2 Jun 4, 2019
83057c6
Refactor convert_hash by transfering logic into other methods.
baxter2 Jun 4, 2019
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38 changes: 17 additions & 21 deletions lib/identicon.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -84,11 +84,11 @@ def blob_for(data, size = 420, background = nil)
def initialize(data, size)
@hash = Digest::MD5.hexdigest(data.to_s)
@chars = @hash.scan(CHARS_REGEX)
@color = [0, 0, 0]
@color = COLORS[@hash.chars[11].to_sym]
@size = size
@pixel_ratio = (size / 6).round
@image_size = @size - (@pixel_ratio / 1.5).round
@square_array = Hash.new { Hash.new(false) }
@square_array = Hash.new { |h, k| h[k] = Array.new(5, false) }
@background = [240, 240, 240]
convert_hash
end
Expand Down Expand Up @@ -159,27 +159,23 @@ def to_blob
private

def convert_hash
chars = @chars.map { |p| p[1] }
chars.each_index do |i|
char = chars[i]
sq_index = (i / 3).round
@square_array[i / 3] = [] unless @square_array.member? sq_index
if i % 3 == 0
@square_array[i / 3][0] = h_to_b char
@square_array[i / 3][4] = h_to_b char
elsif i % 3 == 1
@square_array[i / 3][1] = h_to_b char
@square_array[i / 3][3] = h_to_b char
else
@square_array[i / 3][2] = h_to_b char
end
outer_inner_middle_columns = @chars.map { |p| p[1].ord.even? }.each_slice(3).to_a
outer_inner_middle_columns.each_with_index do |arr, row|
paint_two_outer_columns?(arr[0] , row)
paint_two_inner_columns?(arr[1] || false, row)
paint_middle_column?( arr[2] || false, row)
end
color = :a
0.upto(5) { color = chars.shift.to_sym }
@color = COLORS[color]
end

def h_to_b(value)
value.bytes.first.even?
def paint_two_outer_columns?(boolean, row)
@square_array[row][0] = boolean && @square_array[row][4] = boolean
end

def paint_two_inner_columns?(boolean, row)
@square_array[row][1] = boolean && @square_array[row][3] = boolean
end

def paint_middle_column?(boolean, row)
@square_array[row][2] = boolean
end
end