add audio example from @ashleysommer

Author: electronstudio

examples/audio/audio_module_playing.py

@@ -0,0 +1,172 @@
+"""
+
+raylib [audio] example - playing
+
+"""
+import dataclasses
+import pyray
+import raylib as rl
+from raylib.colors import (
+    RAYWHITE,
+    ORANGE,
+    RED,
+    GOLD,
+    LIME,
+    BLUE,
+    VIOLET,
+    BROWN,
+    LIGHTGRAY,
+    PINK,
+    YELLOW,
+    GREEN,
+    SKYBLUE,
+    PURPLE,
+    BEIGE,
+    MAROON,
+    GRAY,
+    BLACK
+)
+
+
+MAX_CIRCLES=64
+
+
+@dataclasses.dataclass
+class CircleWave:
+    position: 'rl.Vector2'
+    radius: float
+    alpha: float
+    speed: float
+    color: 'rl.Color'
+
+
+screenWidth = 800
+screenHeight = 450
+
+rl.SetConfigFlags(rl.FLAG_MSAA_4X_HINT)  # NOTE: Try to enable MSAA 4X
+
+rl.InitWindow(screenWidth, screenHeight, b"raylib [audio] example - module playing (streaming)")
+
+rl.InitAudioDevice()                  # Initialize audio device
+
+colors = [ ORANGE, RED, GOLD, LIME, BLUE, VIOLET, BROWN, LIGHTGRAY, PINK,
+           YELLOW, GREEN, SKYBLUE, PURPLE, BEIGE ]
+
+# Creates some circles for visual effect
+circles = []
+
+for i in range(MAX_CIRCLES):
+    rad = rl.GetRandomValue(10, 40)
+    pos = pyray.Vector2(
+        float(rl.GetRandomValue(rad, int(screenWidth) - rad)),
+        float(rl.GetRandomValue(rad, int(screenHeight) - rad))
+    )
+    c = CircleWave(
+        alpha=0.0,
+        radius=float(rad),
+        position=pos,
+        speed=float(rl.GetRandomValue(1, 100))/2000.0,
+        color=colors[rl.GetRandomValue(0, 13)]
+    )
+    circles.append(c)
+
+music = rl.LoadMusicStream(b"resources/mini1111.xm")
+music.looping = False
+pitch = 1.0
+
+rl.PlayMusicStream(music)
+timePlayed = 0.0
+pause = False
+
+rl.SetTargetFPS(60) # Set our game to run at 60 frames-per-second
+
+
+# Main game loop
+while not rl.WindowShouldClose():    # Detect window close button or ESC key
+    # Update
+    #----------------------------------------------------------------------------------
+    rl.UpdateMusicStream(music)      # Update music buffer with new stream data
+
+    # Restart music playing (stop and play)
+    if rl.IsKeyPressed(rl.KEY_SPACE):
+        rl.StopMusicStream(music)
+        rl.PlayMusicStream(music)
+        pause = False
+
+    # Pause/Resume music playing
+    if rl.IsKeyPressed(rl.KEY_P):
+        pause = not pause
+        if pause:
+            rl.PauseMusicStream(music)
+        else:
+            rl.ResumeMusicStream(music)
+
+
+    if rl.IsKeyDown(rl.KEY_DOWN):
+        pitch -= 0.01
+    elif rl.IsKeyDown(rl.KEY_UP):
+        pitch += 0.01
+
+    rl.SetMusicPitch(music, pitch)
+
+    # Get timePlayed scaled to bar dimensions
+    timePlayed = (rl.GetMusicTimePlayed(music) / rl.GetMusicTimeLength(music))*(screenWidth - 40)
+
+    # Color circles animation
+    for i in range(MAX_CIRCLES):
+        if pause:
+            break
+
+        circles[i].alpha += circles[i].speed
+        circles[i].radius += circles[i].speed*10.0
+
+        if circles[i].alpha > 1.0:
+            circles[i].speed *= -1
+
+        if circles[i].alpha <= 0.0:
+            circles[i].alpha = 0.0
+            rad = rl.GetRandomValue(10, 40)
+            pos = pyray.Vector2(
+                float(rl.GetRandomValue(rad, int(screenWidth) - rad)),
+                float(rl.GetRandomValue(rad, int(screenHeight) - rad))
+            )
+            circles[i].position = pos
+            circles[i].radius = float(rad)
+            circles[i].speed = float(rl.GetRandomValue(1, 100)) / 2000.0
+            circles[i].color = colors[rl.GetRandomValue(0, 13)]
+
+    #----------------------------------------------------------------------------------
+
+    # Draw
+    #----------------------------------------------------------------------------------
+    pyray.begin_drawing()
+
+    pyray.clear_background(RAYWHITE)
+
+    for i in range(MAX_CIRCLES):
+        pyray.draw_circle_v(circles[i].position, circles[i].radius, rl.Fade(circles[i].color, circles[i].alpha))
+
+    # Draw time bar
+    pyray.draw_rectangle(20, screenHeight - 20 - 12, screenWidth - 40, 12, LIGHTGRAY)
+    pyray.draw_rectangle(20, screenHeight - 20 - 12, int(timePlayed), 12, MAROON)
+    pyray.draw_rectangle_lines(20, screenHeight - 20 - 12, screenWidth - 40, 12, GRAY)
+
+    # Draw help instructions
+    pyray.draw_rectangle(20, 20, 425, 145, RAYWHITE)
+    pyray.draw_rectangle_lines(20, 20, 425, 145, GRAY)
+    pyray.draw_text("PRESS SPACE TO RESTART MUSIC", 40, 40, 20, BLACK)
+    pyray.draw_text("PRESS P TO PAUSE/RESUME", 40, 70, 20, BLACK)
+    pyray.draw_text("PRESS UP/DOWN TO CHANGE SPEED", 40, 100, 20, BLACK)
+    pyray.draw_text(f"SPEED: {pitch}", 40, 130, 20, MAROON)
+
+    pyray.end_drawing()
+    #----------------------------------------------------------------------------------
+
+
+# De-Initialization
+#--------------------------------------------------------------------------------------
+rl.UnloadMusicStream(music)          # Unload music stream buffers from RAM
+
+rl.CloseAudioDevice()     # Close audio device (music streaming is automatically stopped)
+
+rl.CloseWindow()          # Close window and OpenGL context