Add RLCD animations and screensavers

voice_animations/success_spark.py

@@ -0,0 +1,84 @@
+# Standalone MicroPython Voice Animation: Success Spark
+# Exposes run(text="", frames=...) and runs automatically if executed directly.
+import time
+import math
+
+try:
+    import board_config
+    display = getattr(board_config, 'display_instance', None)
+except Exception:
+    board_config = None
+    display = None
+
+def draw_center_text(d, msg, y, w, scale=1, c=1):
+    char_w = 8 * scale
+    x = max(0, (w - len(msg) * char_w) // 2)
+    if hasattr(d, 'text_large') and scale > 1:
+        try:
+            d.text_large(msg, x, y, scale, c)
+            return
+        except Exception:
+            pass
+    d.text(msg, x, y, c)
+
+def run(text="", frames=100):
+    if not display:
+        print("board_config.display_instance is not available. Skipping animation.")
+        return
+
+    width = getattr(display, 'width', 400)
+    height = getattr(display, 'height', 300)
+    cx, cy = width // 2, height // 2
+
+    label = text if text else "SUCCESS!"
+    frame = 0
+
+    try:
+        while True:
+            if frames is not None and frames > 0 and frame >= frames:
+                break
+
+            display.clear(0)
+
+            # Draw a thick success checkmark
+            display.line(cx - 20, cy + 5, cx - 5, cy + 20, 1)
+            display.line(cx - 19, cy + 5, cx - 4, cy + 20, 1)
+            display.line(cx - 5, cy + 20, cx + 25, cy - 10, 1)
+            display.line(cx - 4, cy + 20, cx + 26, cy - 10, 1)
+
+            # Sparkles/rays radiating outwards
+            # The rays expand from r=30 to r=90 and loop
+            dist = (frame * 6) % 80
+            
+            # Draw rays only if within reasonable expansion bounds
+            if dist < 65:
+                for angle_deg in range(0, 360, 45):
+                    angle = math.radians(angle_deg)
+                    # Outer point of sparkle
+                    sx1 = cx + int(dist * math.cos(angle))
+                    sy1 = cy + int(dist * math.sin(angle))
+                    # Inner point of sparkle
+                    sx2 = cx + int((dist + 12) * math.cos(angle))
+                    sy2 = cy + int((dist + 12) * math.sin(angle))
+                    
+                    display.line(sx1, sy1, sx2, sy2, 1)
+
+                    # Add side sparkles for variety on cross angles (45, 135, etc.)
+                    if angle_deg % 90 != 0:
+                        display.fill_rect(sx2 - 2, sy2 - 2, 4, 4, 1)
+
+            # Draw centered text label at the bottom
+            draw_center_text(display, label, height - 30, width, scale=1, c=1)
+
+            display.show()
+            frame += 1
+
+            try:
+                time.sleep_ms(45)
+            except AttributeError:
+                time.sleep(0.045)
+    except KeyboardInterrupt:
+        print("Animation interrupted by user.")
+
+if __name__ in ('__main__', '__name__'):
+    run()