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