Add RLCD animations and screensavers

voice_animations/working_gears.py

@@ -0,0 +1,102 @@
+# Standalone MicroPython Voice Animation: Working Gears
+# 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 draw_gear(d, gcx, gcy, r, teeth_count, rotation, c=1):
+    # Draw gear boundary
+    d.rect(gcx - r, gcy - r, r * 2, r * 2, c)
+    # Inner shaft hole
+    d.fill_rect(gcx - 5, gcy - 5, 10, 10, c)
+    d.fill_rect(gcx - 2, gcy - 2, 4, 4, 0)
+    
+    # Draw gear teeth extending outwards
+    for i in range(teeth_count):
+        angle = rotation + i * (2 * math.pi / teeth_count)
+        # Inner teeth start
+        x1 = gcx + int((r - 2) * math.cos(angle))
+        y1 = gcy + int((r - 2) * math.sin(angle))
+        # Outer teeth end
+        x2 = gcx + int((r + 10) * math.cos(angle))
+        y2 = gcy + int((r + 10) * math.sin(angle))
+        
+        d.line(x1, y1, x2, y2, c)
+        
+        # Add tiny horizontal heads to teeth for thickness
+        perp_angle = angle + math.pi / 2
+        tx1 = x2 - int(3 * math.cos(perp_angle))
+        ty1 = y2 - int(3 * math.sin(perp_angle))
+        tx2 = x2 + int(3 * math.cos(perp_angle))
+        ty2 = y2 + int(3 * math.sin(perp_angle))
+        d.line(tx1, ty1, tx2, ty2, 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 "WORKING..."
+    frame = 0
+
+    try:
+        while True:
+            if frames is not None and frames > 0 and frame >= frames:
+                break
+
+            display.clear(0)
+
+            # Draw two rotating, interlocking gears
+            # Large Gear (Left & slightly up)
+            rot1 = frame * 0.08
+            draw_gear(display, cx - 45, cy - 10, r=32, teeth_count=8, rotation=rot1, c=1)
+
+            # Small Gear (Right & slightly down)
+            # Rotates counter-clockwise, offset to interlock teeth
+            rot2 = -frame * 0.106 + (math.pi / 8)
+            draw_gear(display, cx + 45, cy + 20, r=24, teeth_count=6, rotation=rot2, c=1)
+
+            # Little decorative background computer dots
+            dot_phase = (frame // 4) % 4
+            for i in range(4):
+                fill_color = 1 if i == dot_phase else 0
+                display.rect(cx - 80 + i * 16, cy + 70, 8, 8, 1)
+                if fill_color:
+                    display.fill_rect(cx - 78 + i * 16, cy + 72, 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(50)
+            except AttributeError:
+                time.sleep(0.05)
+    except KeyboardInterrupt:
+        print("Animation interrupted by user.")
+
+if __name__ in ('__main__', '__name__'):
+    run()