class Mushy::SenseHatLedMatrix
Public Class Methods
details()
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 5 def self.details { name: 'SenseHatLedMatrix', description: 'Interface with the LED Matrix.', config: Mushy::SimplePythonProgram.default_config.tap do |config| config[:get_pixels] = { description: 'Specify the pixels you want returned as events. Use "all" to return all 64, 3,3 to return x:3 y:3, or "none" to return none.', type: 'text', shrink: true, value: 'all', } config[:set_pixel] = { description: 'Set a single pixel to the RGB color.', type: 'text', shrink: true, value: '', } config[:set_pixels] = { description: 'An array of multiple pixels to set. The records must have coordinates and rgb values, just like what comes out of the get pixels call.', type: 'text', shrink: true, value: '', } config[:rgb] = { description: 'The RGB value as a comma-delimited list. Leave blank to not set a color.', type: 'text', shrink: true, value: '', } config[:background_color] = { description: 'The RGB of the background, which is used in some API calls.', type: 'text', shrink: true, value: '', } config[:clear] = { description: 'The RGB color to apply to the entire grid.', type: 'text', shrink: true, value: '', } config[:show_letter] = { description: 'Show a single letter on the grid. Uses Rgb and Background Color.', type: 'text', shrink: true, value: '', } config[:show_message] = { description: 'Scroll a message across the grid. Uses Rgb and Background Color.', type: 'text', shrink: true, value: '', } config[:load_image] = { description: 'Load a 8x8 image.', type: 'text', shrink: true, value: '', } config[:set_rotation] = { description: 'Rotate the image by these degrees.', type: 'select', options: ['', '0', '90', '180', '270'], shrink: true, value: '', } config[:redraw] = { description: 'Redraw.', type: 'boolean', shrink: true, value: '', } config[:low_light] = { description: 'Use the low light to turn down the brightness.', type: 'boolean', shrink: true, value: '', } config[:flip_h] = { description: 'Flips the image horizontally.', type: 'boolean', shrink: true, value: '', } config[:flip_v] = { description: 'Flips the image vertically.', type: 'boolean', shrink: true, value: '', } config[:target] = { description: 'The target of these commands. "hat" is a SenseHAT plugged into your Raspberry Pi, and "emu" is the SenseHAT emulator. Defaults to "hat".', type: 'select', options: ['', 'hat' , 'emu'], shrink: true, value: '', } end } end
Public Instance Methods
adjust(data, event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 135 def adjust data, event, config limit = 8 coordinates = coordinates_from config[:get_pixels] records = coordinates ? [data[:all]] : data[:all] results = records.each_with_index.map do |item, index| { x: index % limit, y: index / limit, r: item[0], g: item[1], b: item[2], } end if coordinates results[0][:x] = coordinates[:x] results[0][:y] = coordinates[:y] end results.each do |record| record[:coordinate] = "#{record[:x]},#{record[:y]}" record[:rgb] = "#{record[:r]},#{record[:g]},#{record[:b]}" end results end
clear_pixels_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 205 def clear_pixels_code_from event, config clear = rgb_from config[:clear] return '' unless clear "sense.clear(#{clear[:r]}, #{clear[:g]}, #{clear[:b]})" end
coordinates_from(config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 172 def coordinates_from config coordinate_split = config.to_s.split ',' return nil unless coordinate_split.count == 2 return [:x, :y].each_with_index .reduce({}) { |t, i| t[i[0]] = coordinate_split[i[1]].to_s.to_i ; t} end
flip_h_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 255 def flip_h_code_from event, config return '' unless config[:flip_h].to_s == 'true' args = [] args << config[:redraw].to_s.capitalize if config[:redraw].to_s != '' "sense.flip_h(#{args.join(',')})" end
flip_v_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 262 def flip_v_code_from event, config return '' unless config[:flip_v].to_s == 'true' args = [] args << config[:redraw].to_s.capitalize if config[:redraw].to_s != '' "sense.flip_v(#{args.join(',')})" end
get_pixels_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 269 def get_pixels_code_from event, config get_pixel_coordinates = coordinates_from config[:get_pixels] if get_pixel_coordinates "sense.get_pixel(#{get_pixel_coordinates[:x]}, #{get_pixel_coordinates[:y]})" elsif config[:get_pixels].to_s.downcase == 'all' 'sense.get_pixels()' else '[]' end end
load_images_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 235 def load_images_code_from event, config return '' if config[:load_image].to_s == '' args = ["\"#{config[:load_image]}\""] args << config[:redraw].to_s.capitalize if config[:redraw].to_s != '' "sense.load_image(#{args.join(',')})" end
low_light_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 250 def low_light_code_from event, config return '' if config[:low_light].to_s == '' "sense.low_light = #{config[:low_light].capitalize}" end
python_program(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 106 def python_program event, config commands = [ :set_pixel_code_from, :set_pixels_code_from, :clear_pixels_code_from, :show_letters_code_from, :show_message_code_from, :load_images_code_from, :set_rotation_code_from, :low_light_code_from, :flip_h_code_from, :flip_v_code_from, ].map { |x| self.send x, event, config } .select { |x| x.to_s != '' } .join("\n") hat = config[:target] == 'emu' ? 'sense_emu' : 'sense_hat' <<PYTHON from #{hat} import SenseHat import json sense = SenseHat() #{commands} value = json.dumps({"all": #{get_pixels_code_from(event, config)}}) print(value) PYTHON end
rgb_from(config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 165 def rgb_from config color_split = config.to_s.split ',' return nil unless color_split.count == 3 return [:r, :g, :b].each_with_index .reduce({}) { |t, i| t[i[0]] = color_split[i[1]].to_s.to_i ; t} end
set_pixel_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 179 def set_pixel_code_from event, config rgb = rgb_from config[:rgb] set_pixel_coordinates = coordinates_from config[:set_pixel] return '' unless rgb return '' unless set_pixel_coordinates turn_these_to_pixels([ { coordinate: "#{set_pixel_coordinates[:x]},#{set_pixel_coordinates[:y]}", rgb: "#{rgb[:r]},#{rgb[:g]},#{rgb[:b]}", } ]) end
set_pixels_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 191 def set_pixels_code_from event, config return '' unless config[:set_pixels] turn_these_to_pixels config[:set_pixels] end
set_rotation_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 243 def set_rotation_code_from event, config return '' if config[:set_rotation].to_s == '' args = ["#{config[:set_rotation]}"] args << config[:redraw].to_s.capitalize if config[:redraw].to_s != '' "sense.set_rotation(#{args.join(',')})" end
show_letters_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 211 def show_letters_code_from event, config return '' if config[:show_letter].to_s == '' rgb = rgb_from config[:rgb] background_color = rgb_from config[:background_color] args = ["\"#{config[:show_letter]}\""] args << "text_colour=[#{rgb[:r]}, #{rgb[:g]}, #{rgb[:b]}]" if rgb args << "back_colour=[#{background_color[:r]}, #{background_color[:g]}, #{background_color[:b]}]" if background_color "sense.show_letter(#{args.join(',')})" end
show_message_code_from(event, config)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 223 def show_message_code_from event, config return '' if config[:show_message].to_s == '' rgb = rgb_from config[:rgb] background_color = rgb_from config[:background_color] args = ["\"#{config[:show_message]}\""] args << "text_colour=[#{rgb[:r]}, #{rgb[:g]}, #{rgb[:b]}]" if rgb args << "back_colour=[#{background_color[:r]}, #{background_color[:g]}, #{background_color[:b]}]" if background_color "sense.show_message(#{args.join(',')})" end
turn_these_to_pixels(values)
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# File lib/mushy/fluxs/sense_hat_led_matrix.rb, line 196 def turn_these_to_pixels values options = [:coordinate, :rgb] values.map do |pixel| options.reduce({}) { |t, i| t[i] = pixel[i].split(',') ; t} end.map do |pixel| "sense.set_pixel(#{pixel[:coordinate][0]}, #{pixel[:coordinate][1]}, [#{pixel[:rgb][0]}, #{pixel[:rgb][1]}, #{pixel[:rgb][2]}])" end.join("\n") end