Aggiungi supporto per audio e migliora la gestione delle dipendenze nel progetto

engine/sdl2.py

@@ -2,9 +2,12 @@ import os
 import sdl2
 import sdl2.ext
 from sdl2.ext.compat import byteify
-
+from ctypes import *
+ 
 from PIL import Image
+from sdl2 import SDL_AudioSpec
 
+import random
 class GameWindow:
     def __init__(self, width, height, cell_size, title="Default", key_callback=None):
         
@@ -34,10 +37,15 @@ class GameWindow:
         self.running = True
         self.key_down, self.key_up, self.axis_scroll = key_callback
         self.performance = 0
+        self.audio_devs = []
+        for i in range(5):
+            self.audio_devs.append((True, sdl2.SDL_OpenAudioDevice(None, 0, SDL_AudioSpec(freq=22050, aformat=sdl2.AUDIO_U8, channels=1, samples=2048), None, 0)))
+
 
     def load_joystick(self):
         sdl2.SDL_Init(sdl2.SDL_INIT_JOYSTICK)
         sdl2.SDL_JoystickOpen(0)
+
         
     def generate_fonts(self,font_file):
         fonts = {}
@@ -206,11 +214,41 @@ class GameWindow:
         self.h_offset = y
         
     def play_sound(self, sound_file):
+        print(sound_file)
+        sound_file = os.path.join("sound", sound_file)
+        rw = sdl2.SDL_RWFromFile(byteify(sound_file, "utf-8"), b"rb")
+        if not rw:
+            raise RuntimeError("Failed to open sound file")
+
+        _buf = POINTER(sdl2.Uint8)()
+        _length = sdl2.Uint32()
+        spec = SDL_AudioSpec(freq=22050, aformat=sdl2.AUDIO_U8, channels=1, samples=2048)
+
+        if sdl2.SDL_LoadWAV_RW(rw, 1, byref(spec), byref(_buf), byref(_length)) == None:
+            raise RuntimeError("Failed to load WAV")
+        devid = None
+        while not devid:
+            id = random.randint(0, 4)
+            for idx, dev in enumerate(self.audio_devs):
+                if dev[0]:
+                    devid = dev[1]
+                    sdl2.SDL_ClearQueuedAudio(devid)
+                    self.audio_devs[id] = (False, devid)
+                    break
+            if not devid:
+                
+                devid = self.audio_devs[id][1]
+                sdl2.SDL_ClearQueuedAudio(devid)
+                self.audio_devs[random.randint(0, 4)] = (True, devid)
+
+        # Start playing audio
+        sdl2.SDL_QueueAudio(devid, _buf, _length)
+        sdl2.SDL_PauseAudioDevice(devid, 0)
         
-        return
-        sample = sdl2.sdlmixer.Mix_LoadWAV(byteify(sound_file, "utf-8"))
-        if sample is None:
-            raise RuntimeError("Cannot open audio file: {}".format(sdl2.sdlmixer.Mix_GetError()))
-        channel = sdl2.sdlmixer.Mix_PlayChannel(-1, sample, 0)
-        if channel == -1:
-            print(f"Cannot play sound: {sdl2.sdlmixer.Mix_GetError()}")
+    def stop_sound(self):
+        for dev in self.audio_devs:
+            if not dev[0]:
+                sdl2.SDL_PauseAudioDevice(dev[1], 1)
+                sdl2.SDL_ClearQueuedAudio(dev[1])
+                dev[0] = True
+