first time rendering images and stuff. # this is not optimal. lol.

lib/mimey/emulator.rb

@@ -4,6 +4,7 @@ module Mimey
  class Emulator
    attr_accessor :debug_mode, :step_by_step, :step_counter
    attr_reader :screen
    attr_reader :gpu # delete this later

    def initialize(cpu_options = {})
      cpu_options = CPU::DEFAULTS.merge(cpu_options)

lib/mimey/gpu.rb

@@ -3,6 +3,7 @@ module Mimey
  class GPU
    attr_reader :vram
    attr_accessor :cpu
    attr_reader :scrn # delete this later

    def initialize(screen)
      @screen = screen
@@ -306,7 +307,8 @@ def new_renderscan
          tilerow = @tilemap[tile][y]
          160.downto(1).each do |w|
            @scanrow[160 - x] = tilerow[x]
            @scrn[linebase + 3] = @palette[:bg][tilerow[x]]
            # by some reason we have to divide this by 4. don't ask me why.
            @scrn[(linebase + 3)/4] = @palette[:bg][tilerow[x]]
            x += 1
            if x == 8 then
              t = (t + 1) & 31
@@ -323,7 +325,8 @@ def new_renderscan
          tilerow = @tilemap[@vram[mapbase + t]][y]
          160.downto(1).each do |w|
            @scanrow[160 - x] = tilerow[x]
            @scrn[linebase + 3] = @palette[:bg][tilerow[x]]
            # by some reason we have to divide this by 4. don't ask me why.
            @scrn[(linebase + 3)/4] = @palette[:bg][tilerow[x]]
            x += 1
            if x == 8 then
              t = (t + 1) & 31

lib/mimey/lcd_screen.rb

@@ -11,6 +11,8 @@ class LcdScreen
      0 => 3
    }

    attr_accessor :screen

    def initialize
      @screen = (WIDTH * HEIGHT).times.map { 0 }
    end
@@ -25,8 +27,8 @@ def render

    def []=(coords, color)
      return unless color
      color_index = COLOR_MAPPINGS[color]
      @screen[coords] = COLORS[color_index]
      # i want to do it this way so I can set @screen to @scrn
      @screen[coords] = color
      # x, y = coords
      # if x < WIDTH and y < HEIGHT
      #   @screen[y * WIDTH + x] = color_code
@@ -37,8 +39,8 @@ def []=(coords, color)
    # https://github.com/fazibear/colorize/blob/master/lib/colorize.rb
    # http://misc.flogisoft.com/bash/tip_colors_and_formatting
    def print_pixel(color)
      # code = COLORS[color]
      code = color
      # this is not optimal. lol.
      code = COLORS[COLOR_MAPPINGS[color]]
      print "\e[49m\e[#{code}m \e[49m"
    end
  end

test_emulator.rb

@@ -106,8 +106,18 @@ def reference_hash
else
  puts "ran #{step_counter.steps.length} steps"
  puts "OMG I couldn't find any errors!"
  puts step_counter.steps.last.gpu_r.scrn.inspect
  # emulator.screen.render
  screen = Mimey::LcdScreen.new
  scrn = emulator.gpu.scrn
  if scrn.compact.length != scrn.length then
    puts "warning, the screen has some nils"
    puts scrn.length
    puts scrn.compact.length
    puts scrn[0..100].inspect
    puts scrn[0..100].compact.inspect
  end

  screen.screen = scrn
  screen.render
end

# emulator.debug