Initial commit

audio_python/keyboard_raylib.py

@@ -0,0 +1,49 @@
+import math
+import pyray as ray
+
+SAMPLE_RATE = 44100
+BUFFER_SIZE = 2048
+
+progress = 0.0  # progress within a cycle of a periodic function (0 to 1)
+
+
+def tick(freq):
+    global progress
+    progress = (progress + freq / SAMPLE_RATE) % 1.0
+    return progress
+
+
+def sine(p):
+    return math.sin(2 * math.pi * p)
+
+
+def square(p):
+    return 1.0 if p < 0.5 else -1.0
+
+
+def saw(p):
+    return 2.0 * p - 1.0
+
+
+def tri(p):
+    return 4 * abs(p - 0.5) - 1.0
+
+
+ray.init_window(800, 450, "Hello")
+ray.init_audio_device()
+ray.set_target_fps(60)
+ray.set_audio_stream_buffer_size_default(BUFFER_SIZE)
+stream = ray.load_audio_stream(SAMPLE_RATE, 32, 1)
+ray.play_audio_stream(stream)
+buffer = ray.ffi.new("float[]", BUFFER_SIZE)
+while not ray.window_should_close():
+    if ray.is_key_down(ray.KeyboardKey.KEY_SPACE) and ray.is_audio_stream_processed(stream):
+        for i in range(BUFFER_SIZE):
+            buffer[i] = 0.1 * sine(tick(440))
+        ray.update_audio_stream(stream, buffer, BUFFER_SIZE)
+    ray.begin_drawing()
+    ray.clear_background((0x0B, 0x0B, 0x0B, 0xFF))
+    ray.draw_text("Hello world", 190, 200, 20, ray.VIOLET)
+    ray.end_drawing()
+ray.close_window()
+ray.close_audio_device()