You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
41 lines
654 B
Ruby
41 lines
654 B
Ruby
class Grid
|
|
|
|
attr_reader :width, :height
|
|
|
|
def initialize(lines)
|
|
@lines = lines
|
|
@width = lines.first && lines.first.size || 0
|
|
@height = lines.size
|
|
end
|
|
|
|
def ==(other)
|
|
lines == other.lines
|
|
end
|
|
|
|
def cell(x, y)
|
|
lines[y][x]
|
|
end
|
|
|
|
def crop(x, y, width, height)
|
|
cropped_lines = lines[y...y+height].map { |line| line[x...x+width] }
|
|
self.class.new(cropped_lines)
|
|
end
|
|
|
|
def diff(other)
|
|
(0...height).each_with_object({}) do |y, diff|
|
|
if other.nil? || other.lines[y] != lines[y]
|
|
diff[y] = lines[y]
|
|
end
|
|
end
|
|
end
|
|
|
|
def as_json(*)
|
|
lines.as_json
|
|
end
|
|
|
|
protected
|
|
|
|
attr_reader :lines
|
|
|
|
end
|