add proper colors to score on gbc

Makefile

 		$(PNGA) $< -o $@ -spr8x8 -map -use_map_attributes -noflip \
 	,$(if $(findstring numbers,$<), \
 		@echo "Converting font $<" && \
-		$(PNGA) $< -o $@ -spr8x8 -sw 16 -sh 16 -map -no_palettes \
+		$(PNGA) $< -o $@ -spr8x8 -sw 16 -sh 16 -map \
 	,                                     \
 		@echo "Converting tile $<" && \
 		$(PNGA) $< -o $@ -spr8x8      \

src/maps.c

 
 #define MAX_DIGITS 7
 
+// TODO inverted score color not visible on DMG
+
+const unsigned char num_attr_1[40] = {
+    0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,
+    0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,0x81,
+};
+
+const unsigned char num_attr_2[40] = {
+    0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,
+    0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,0x82,
+};
+const palette_color_t num_pal_inv[4] = {
+  //RGB8(  0,  0,  0), RGB8(248,252,248), RGB8(  0,  0,  0), RGB8(  0,  0,  0)
+    RGB8(  0,  0,  0), RGB8(  0,  0,  0), RGB8(248,252,248), RGB8(  0,  0,  0)
+};
+
 void map_title(void) {
     set_bkg_palette(OAMF_CGB_PAL0, title_map_PALETTE_COUNT, title_map_palettes);
     set_bkg_data(0, title_map_TILE_COUNT, title_map_tiles);
     set_bkg_tiles(0, 0, bg_map_WIDTH / bg_map_TILE_W, bg_map_HEIGHT / bg_map_TILE_H, bg_map_map);
 }
 
-static void digit(uint8_t val, uint8_t digit, uint8_t x_off) {
+inline void set_win_based(uint8_t x, uint8_t y, uint8_t w, uint8_t h, const uint8_t *tiles, uint8_t base_tile, const uint8_t *attributes)
+{
+    VBK_REG = VBK_ATTRIBUTES;
+    set_win_tiles(x, y, w, h, attributes);
+    VBK_REG = VBK_TILES;
+    set_win_based_tiles(x, y, w, h, tiles, base_tile);
+}
+
+static void digit(uint8_t val, uint8_t digit, uint8_t x_off, uint8_t is_black) {
     uint8_t off = val * numbers_WIDTH / numbers_TILE_W;
-    set_win_based_tiles(x_off + (digit * numbers_WIDTH / numbers_TILE_W), 0,
-                        numbers_WIDTH / numbers_TILE_W, 1,
-                        numbers_map + off, bg_map_TILE_COUNT);
-    set_win_based_tiles(x_off + (digit * numbers_WIDTH / numbers_TILE_W), 1,
-                        numbers_WIDTH / numbers_TILE_W, 1,
-                        numbers_map + off + (sizeof(numbers_map) / 2), bg_map_TILE_COUNT);
+
+    set_win_based(x_off + (digit * numbers_WIDTH / numbers_TILE_W), 0,
+                  numbers_WIDTH / numbers_TILE_W, 1,
+                  numbers_map + off, bg_map_TILE_COUNT,
+                  (is_black ? num_attr_2 : num_attr_1) + off);
+
+    set_win_based(x_off + (digit * numbers_WIDTH / numbers_TILE_W), 1,
+                  numbers_WIDTH / numbers_TILE_W, 1,
+                  numbers_map + off + (sizeof(numbers_map) / 2), bg_map_TILE_COUNT,
+                  (is_black ? num_attr_2 : num_attr_1) + off);
 }
 
+
 void win_game_load(void) {
+    set_bkg_palette(OAMF_CGB_PAL0 + bg_map_PALETTE_COUNT, numbers_PALETTE_COUNT, numbers_palettes);
+    set_bkg_palette(OAMF_CGB_PAL0 + bg_map_PALETTE_COUNT + 1, numbers_PALETTE_COUNT, num_pal_inv);
     set_win_data(bg_map_TILE_COUNT, numbers_TILE_COUNT, numbers_tiles);
 }
 
     // TODO can not set numbers larger than int16 max?!
     //score = 32767 + 1; // wtf?!
 
-    // TODO support color switch, but how?
-
     uint8_t is_black = 0;
     if (score < 0) {
         score = -score;
     }
 
     for (uint8_t i = 0; i < len; i++) {
-        digit(digits[len - i - 1], i, 10 - len);
+        digit(digits[len - i - 1], i, 10 - len, is_black);
     }
 }