Add support for A/B notes (hands)

README.md

@@ -52,7 +52,7 @@ If there is an unsupported command or metadata field that you would like support
 | Note/command                                    | tja2fumen | tja2bin | Comments                                                  |
 | ------------------------------------------------| ----------- | --------- | ----------------------------------------------------- |
 | `0`, `1`, `2`, `3`, `4` `5`, `6`, `7`, `8`, `9` | `✅` | `✅` |                                                                      |
-| `A`, `B`                                        | `❔` | `❔` | Multiplayer note with hands.                                         | 
+| `A`, `B`                                        | `✅` | `❌` |                                                                      | 
 | `F`                                             | `❔` | `❔` | Hidden ADLIB note.                                                   |
 | `9000,`<br>`9008,`                              | `⚪️` | `❔` | Double Kusudama note to reset accuracy.                              |
 | `#START`, `#END`                                | `✅` | `✅` |                                                                      |

src/tja2fumen/constants.py

@@ -8,8 +8,8 @@ TJA_NOTE_TYPES = {
     '7': 'Balloon',
     '8': 'EndDRB',
     '9': 'Kusudama',
-    'A': 'DON',  # hands
-    'B': 'KA',   # hands
+    'A': 'DON2',  # hands
+    'B': 'KA2',   # hands
 }
 
 FUMEN_NOTE_TYPES = {

src/tja2fumen/converters.py

@@ -346,7 +346,8 @@ def convert_tja_to_fumen(tja):
                     current_drumroll = note
 
                 # Track Don/Ka notes (to later compute header values)
-                elif note.note_type.lower() in ['don', 'ka']:
+                elif (note.note_type.lower().startswith('don')
+                        or note.note_type.lower().startswith('ka')):
                     total_notes[current_branch] += 1
 
                 # Track branch points (to later compute `#BRANCHSTART p` vals)

testing/data/dummy_tjas/notes_hands.tja

@@ -0,0 +1,13 @@
+// This song contains only basic notes.
+BPM:120
+OFFSET:-1.00
+
+COURSE:Oni
+LEVEL:10
+BALLOON:8,8
+SCOREINIT:400
+SCOREDIFF:100
+
+#START
+A0B0,
+#END

testing/test_command_support.py

@@ -8,6 +8,7 @@ from conftest import convert
 
 @pytest.mark.parametrize('id_song,err_msg', [
     ['basic_song', None],
+    ['notes_hands', None],
     ['missing_score', None],
     ['missing_balloon', "Not enough values for 'BALLOON:"],
     ['missing_course', "Invalid COURSE value:"],