How to Play:
Shape Fill is a drag-and-drop puzzle game. Fill each picture-shaped grid using pieces from the tray on the side.

Controls:
1. Click/Tap or Press SPACE to start the game
2. Drag a piece from the tray onto the glowing shape
3. Release to place — the piece snaps into grid cells
4. Fill every cell in the shape to advance to the next picture

Piece Controls:
- Click / Tap piece: Rotate 90° clockwise
- Double-click / Double-tap: Flip (mirror) the piece
- R key: Rotate while dragging
- Z key: Undo last placement
- Backspace: Reset current shape

Shapes:
- Easy: Heart, Arrow, Mushroom
- Medium: Tree, Rocket, Diamond
- Hard: House, Crown, Castle

Scoring:
- Each block placed scores points (larger pieces = higher bonus)
- Level complete bonus: Time remaining × 3 + Level × 50
- +20 seconds time bonus on each shape completed

Difficulty Levels:
- Easy: 120 seconds — simpler shapes (Heart, Arrow, Mushroom)
- Medium: 90 seconds — medium shapes (Tree, Rocket, Diamond)
- Hard: 60 seconds — complex shapes (House, Crown, Castle)

Tips: Use the small 1-cell piece to fill any tricky corners. Rotate pieces before dragging to save time!