erste Arbeitsversion - noch nicht lauffähig

hero.py

@@ -0,0 +1,126 @@
+#!/usr/bin/env python
+import json
+import pygame
+import pygame.midi
+from os import environ
+from pygame.locals import QUIT, JOYBUTTONUP, JOYBUTTONDOWN, \
+    JOYAXISMOTION, JOYHATMOTION
+
+# Bekannte Joysticks (ich verwende aber nur den ersten)
+JOYSTICKS = []
+
+# Redefinition Buttons (bei sind es zufaellig 0,1,2,3)
+BUTTONS = {0:0,1:1,2:2,3:3,4:4,5:5,6:6,7:7,11:8}
+
+# Verwandle die gedrueckten Buttons ueber Bits in eine Zahl (Button 0 und 1 gedrueckt waeren dann 2^0 + 2^1 = 3)
+PRESSED = 0
+
+# Midi-Offset (Leersaiten E2,A2,D3,G3,B3,E4)
+MOF = {28,33,38,43,47,52}
+
+# In welchem Bund sind die Saiten gedrueckt (-1 = nicht gespielt, 0 = Leersaite, 1 = 1. Bund usw.)
+CHORDS = {
+    "A":[-1,0,2,2,2,0],
+    "Am":[-1,0,2,2,1,0],
+    "B":[-1,2,4,4,4,2],
+    "Bm":[-1,2,4,4,3,2],
+    "C":[-1,3,2,0,1,0],
+    "Cm":[-1,3,5,5,4,3],
+    "D":[-1,-1,0,2,3,2],
+    "Dm":[-1,-1,0,2,3,1],
+    "E":[0,2,2,1,0,0],
+    "Em":[0,2,2,0,0,0],
+    "F":[1,3,3,2,1,1],
+    "Fm":[1,3,3,1,1,1],
+    "G":[3,2,0,0,3,3],
+    "Gm":[3,5,5,3,3,3]
+}
+
+
+
+# Hilfsfunktionen fuer die Bit-Manipulation (PRESSED)
+def setbit(int_type, offset):
+    mask = 1 << offset
+    return(int_type | mask)
+
+def clearbit(int_type, offset):
+    mask = ~(1 << offset)
+    return(int_type & mask)
+
+def proc_event(event,midi_out):
+    global PRESSED
+    "Parse and act upon event"
+    if event.type == QUIT:
+        print("Received event 'Quit', exiting.")
+        exit(0)
+    elif event.type == JOYBUTTONDOWN:
+        try:
+            print("button %d down." % event.button)
+            PRESSED = setbit(PRESSED,BUTTONS[event.button])
+            print("PRESSED = %s" % PRESSED)
+        except:
+            pass
+    elif event.type == JOYBUTTONUP:
+        try:
+            print("button %d up." % event.button)
+            PRESSED = clearbit(PRESSED,BUTTONS[event.button])
+            print("PRESSED = %s" % PRESSED)
+        except:
+            pass
+    '''
+    elif event.type == JOYAXISMOTION:
+        print("axis %d value %0.3f" % (event.axis, event.value))
+        if event.value > 0.2 or event.value < -0.2:
+            midi_out.note_on(40,127)
+    elif event.type == JOYBUTTONDOWN:
+        print("button %d down." % event.button)
+    elif event.type == JOYBUTTONUP:
+        print("button %d up." % event.button)
+    elif event.type == JOYHATMOTION:
+        print("hat motion.")
+    else:
+        print("hat event %s." % event.type)
+    '''
+
+def main():
+
+    # Initialisieren
+    pygame.init()
+    pygame.midi.init()
+    
+    # Default-Ausgabe (normalerweise "Midi Through")
+    port = pygame.midi.get_default_output_id()
+    ###print ("using output_id :%s:" % port)
+    
+    # Latenz 0 (man kann es ja mal versuchen)
+    midi_out = pygame.midi.Output(port, 0)
+
+    # Was man nicht braucht, wird einfach abgeschaltet
+    environ["SDL_VIDEODRIVER"] = "dummy"
+    environ["SDL_AUDIODRIVER"] = "dummy"
+
+    # Braucht man fuer die Abfrage-Rate
+    clock = pygame.time.Clock()
+
+    # Alle Joysticks, die du findest
+    #for i in range(0, pygame.joystick.get_count()):
+    #    JOYSTICKS.append(pygame.joystick.Joystick(i))
+    
+    # Ein Joystick/Controller reicht
+    JOYSTICKS.append(pygame.joystick.Joystick(0))
+    JOYSTICKS[-1].init()
+    print("Detected joystick '%s'" % JOYSTICKS[-1].get_name())
+    while 1:
+        try:
+            # 5 Millisekunden warten, bevor das Dingens hier weiterlaeuft
+            clock.tick(5)
+            for event in pygame.event.get():
+                proc_event(event,midi_out)
+        except KeyboardInterrupt:
+            del midi_out
+            pygame.midi.quit()
+            print("\n" "Interrupted")
+            exit(0)
+
+if __name__ == "__main__":
+    main()