no more bitmap loading

bin/build_spritesheet_asm.rb

@@ -60,11 +60,18 @@ ASM_TEMPLATE = <<~ASM
   end
 ASM
 
-C_TEMPLATE = <<~C
+H_TEMPLATE = <<~H
   #ifndef __SPRITES_H__
   #define __SPRITES_H__
 
   #include "types.h"
+  #include "system/vga.h"
+
+  #define PALETTE_COLOR_COUNT (<%= palette.length %>)
+
+  struct VGAColor palette[<%= palette.length %>] = {
+    <%= palette.map(&:to_struct).join(",\n") %>
+  };
 
   <% sprites.each  do |sprite| %>
   extern void <%= sprite.function_name %>(byte *);
@@ -74,7 +81,7 @@ C_TEMPLATE = <<~C
   <% end  %>
 
   #endif
-C
+H
 
 class AssemblerSprite
   def initialize(
@@ -144,9 +151,29 @@ screen = Screen.new(
 
 sprite_data = []
 
+palette = nil
+
+VGAColor = Data.define(:red, :green, :blue) do
+  def to_struct
+    "{ #{red}, #{green}, #{blue} }"
+  end
+end
+
 data["files"].each do |spritesheet|
   image = Magick::Image.read(spritesheet["file"]).first
 
+  unless palette
+    palette = image.colors.times.map do |i|
+      pixel = Magick::Pixel.from_color(image.colormap(i))
+
+      VGAColor.new(
+        red: pixel.red >> 10,
+        green: pixel.green >> 10,
+        blue: pixel.blue >> 10
+      )
+    end
+  end
+
   spritesheet["sprites"].each do |name, details|
     sprite_data << SpriteData.new(
       image:,
@@ -179,12 +206,13 @@ sprites = sprite_data.map do |sd|
   )
 end
 
+
 File.open('sprites.asm', 'w') do |fh|
   fh.puts ERB.new(ASM_TEMPLATE).result_with_hash(sprites:)
 end
 
 File.open('sprites.h', 'w') do |fh|
-  fh.puts ERB.new(C_TEMPLATE).result_with_hash(sprites:)
+  fh.puts ERB.new(H_TEMPLATE).result_with_hash(sprites:, palette:)
 end
 
 puts "sprites.{asm,h} written"

game.c

@@ -368,12 +368,6 @@ int setupGame() {
   installKeyboardHandler();
   initializeDrawBuffer();
 
-  fh = fopen("sprtsht.bmp", "rb");
-  if (readBMPIntoNewMemory(fh, &spritesheetImage)) return 1;
-  fclose(fh);
-
-  spritesheetImage.transparentColor = 0;
-
   setupWallSprites();
   setupRabbitSprites();
   setupRabbitBullets();
@@ -384,8 +378,8 @@ int setupGame() {
   setupPowerupSprites();
 
   setVideoMode(VIDEO_MODE_VGA_256);
-  bmp256ColorPaletteToVGAColorPalette(&spritesheetImage, vgaColors);
-  setVGAColors(vgaColors, 256);
+
+  setVGAColors(palette, PALETTE_COLOR_COUNT);
 
   activateMouse(&mouseStatus);
 

sprites.h

@@ -2,6 +2,29 @@
 #define __SPRITES_H__
 
 #include "types.h"
+#include "system/vga.h"
+
+#define PALETTE_COLOR_COUNT (17)
+
+struct VGAColor palette[17] = {
+  { 63, 0, 63 },
+{ 0, 0, 0 },
+{ 15, 16, 49 },
+{ 16, 16, 33 },
+{ 16, 16, 16 },
+{ 63, 63, 63 },
+{ 38, 31, 12 },
+{ 0, 0, 0 },
+{ 0, 0, 0 },
+{ 0, 0, 0 },
+{ 0, 0, 0 },
+{ 0, 0, 0 },
+{ 0, 0, 0 },
+{ 0, 0, 0 },
+{ 0, 0, 0 },
+{ 0, 0, 0 },
+{ 0, 0, 0 }
+};
 
 
 extern void sprite_arenaWallTop(byte *);