Add print_menu_string

This essentially does the same thing as print_string, but with some
additional behaviour:
- Custom control codes (5F and 60) are checked
- Will automatically update the window's cursor_delta value
- Updates the window's text X values

compiled/vwf.c

@@ -276,6 +276,73 @@ int print_string(byte *str, int x, int y)
     return (charCount & 0xFFFF) | (totalWidth << 16);
 }
 
+int print_menu_string(WINDOW* window)
+{
+    byte *menu_text = window->menu_text;
+    if (menu_text == NULL)
+        return 0;
+
+    int x = window->window_x << 3;
+    int y = (window->window_y + window->text_y) << 3;
+
+    byte chr;
+    int initial_x = x;
+    int charCount = 0;
+    bool looping = true;
+    int set_count = 0;
+    byte first_set_value = 0;
+
+    while (looping)
+    {
+        if (menu_text[1] == 0xFF)
+        {
+            switch (menu_text[0])
+            {
+                case CUSTOMCC_SET_X:
+                {
+                    byte set_value = menu_text[2];
+                    x = set_value + initial_x;
+                    menu_text += 3;
+
+                    set_count++;
+                    if (set_count == 1)
+                    {
+                        first_set_value = set_value;
+                    }
+                    else if (set_count == 2)
+                    {
+                        // If we're calling SET the second time, update the
+                        // window cursor delta to be the difference between
+                        // the two set values
+                        window->cursor_delta = (set_value - first_set_value) >> 3;
+                    }
+
+                    break;
+                }
+                case CUSTOMCC_ADD_X:
+                    x += menu_text[2];
+                    menu_text += 3;
+                    break;
+                default:
+                    looping = false;
+                    break;
+            }
+        }
+        else
+        {
+            x += print_character(decode_character(*menu_text++), x, y, 0, 0xF);
+            charCount++;
+        }
+    }
+
+    window->text_x = (x / 8) - window->window_x;
+    window->pixel_x = x & 7;
+
+    int totalWidth = x - initial_x;
+
+    return (charCount & 0xFFFF) | (totalWidth << 16);
+}
+
 // x,y: tile coordinates
 void clear_tile(int x, int y, int pixels)
 {

compiled/vwf.h

@@ -19,6 +19,9 @@
 #define WINDOW_HEADER_Y 0x11
 #define WINDOW_HEADER_TILE (WINDOW_HEADER_X + (WINDOW_HEADER_Y * 32))
 
+#define CUSTOMCC_SET_X 0x5F
+#define CUSTOMCC_ADD_X 0x60
+
 unsigned short *tile_offset = (unsigned short*)0x30051EC;
 unsigned short *palette_mask = (unsigned short*)0x3005228;
 unsigned short **tilemap_pointer = (unsigned short**)0x3005270;
@@ -52,6 +55,7 @@ void copy_tile(int xSource, int ySource, int xDest, int yDest);
 void copy_tile_up(int x, int y);
 void print_space(WINDOW *window);
 int print_string(byte *str, int x, int y);
+int print_menu_string(WINDOW* window);
 
 extern unsigned short m2_coord_table[];
 extern int m2_bits_to_nybbles[];

compiled/window.h

@@ -26,7 +26,7 @@ typedef struct WINDOW {
     int unknown6;
     int unknown7;
     unsigned short page;
-    unsigned short unknown8;
+    unsigned short cursor_delta;
     int unknown9;
     int unknown10;
     int unknown11;

m2-notes.txt

@@ -197,8 +197,8 @@ Window structure:
   0x36 - 0x37:  cursor Y
   0x38 - 0x3F:  ?
   0x40 - 0x41:  page number?
-  0x42 - 0x44:  ?
+  0x42 - 0x43:  cursor delta
-  0x45 - 0x4F:  ?
+  0x44 - 0x4F:  ?
 
 Custom codes
 ------------

working/m12-menuchoices.json

@@ -7,7 +7,7 @@
       "OffsetLocation": 11639400,
       "OldPointer": 11638964,
       "Old": "    はい     いいえ[00 FF]",
-      "New": "    Yes     No[00 FF]"
+      "New": "[5F FF 20]Yes[5F FF 58]No[00 FF]"
     },
     {
       "Index": 1,