Logic works, now need to tie it to ydotool

patapon.py

@@ -1,12 +1,11 @@
 #! /usr/bin/env python3
 import argparse
+import subprocess
+import time
 
 def ydotool(key):
     pass
 
-def playsong(song):
-    pass
-
 def main():
     # A list of all possible songs, expressed as their cardinal directions
     # We'll map these to keystrokes later
@@ -31,11 +30,50 @@ def main():
             # Step Back Strut
             "U-L-U-L-"
     ]
+    # A mapping of characters in our encoded songs to keys to send to ydotool
+    # These should be the default bindings for PPSSPP
+    keymapping = {
+            "U": "s",
+            "D": "z",
+            "L": "a",
+            "R": "x"
+    }
+    drummapping = {
+            "U": '\033[32mCHAKA\033[0m',
+            "D": '\033[33mDON\033[0m',
+            "L": '\033[31mPATA\033[0m',
+            "R": '\033[34mPON\033[0m'
+    }
     parser = argparse.ArgumentParser(
-        description="Play a sequence of Patapon commands on repeat forever. Makes no attempt to sync to the game -- that's your job"
+        description="Play a sequence of Patapon commands on repeat forever"
         )
     parser.add_argument('song',default="R-R-L-R-",nargs="+",choices=songs,help="The song to play. Defaults to Aria of Attack. When expressing a song, use eighth notes, dashes, and cardinal directions to designate the drums. For example, party would be \"L-R-D-U-\", and djinn would be \"D-DD-DD-\"")
     parser.add_argument('--bpm',type=int,default=120,help="The BPM of Patapon. Change if you're running the game at a higher speed")
+    parser.add_argument('--iterations',type=int,default=10000,help="Number of iterations of the sequence to run. Defaults to 10,000")
     args = parser.parse_args()
 
+    # Schedule out our beat interval
+    beat_interval = 60 / (args.bpm * 2)
+    print(f"Beat interval: {beat_interval}")
+
+    # Set up the environment
+    sequence='--------' + '--------'.join(args.song)
+    print(f"Song sequence: {sequence}")
+    remaining_iterations = args.iterations
+    lastbeat = 0
+
+    # Wait for user confirmation
+    input("Press enter on-beat to sync up with Patapon...")
+    synctime = time.perf_counter()
+
+    # Play da notes
+    while remaining_iterations > 0:
+        for i, key in enumerate(sequence):
+            while time.perf_counter() < synctime + lastbeat:
+                pass
+            lastbeat += beat_interval
+            ydotool(key)
+            print(drummapping.get(key, '-'))
+        remaining_iterations -= 1
+
 main()