Game Rules:

1. Rule 1: The main objective of the game is to fill the sad glass with water until it becomes happy. You need to draw a line to guide the water from the pipe to the glass.
2. Rule 2: You have a limited amount of ink in your pencil to draw lines. The ink bar at the top of the screen shows how much ink you have left.
3. Rule 3: Gravity affects the water, so it will fall down. You need to draw lines to guide the water around obstacles and into the glass.
4. Rule 4: You can draw multiple lines, but remember that each line uses ink. You can also erase lines if you make a mistake.
5. Rule 5: Try to use as little ink as possible to earn a higher score. The less ink you use, the more stars you get at the end of the level.

Controls:

1. Action: Click and drag the left mouse button to draw a line.
2. Action: Tap and drag your finger on the screen to draw a line.
3. Action: Click or tap the undo button to erase the last line you drew.

FAQ:

1. Q: How do I get more stars?

To get more stars, you need to use as little ink as possible to fill the glass. The fewer lines you draw, the higher your score will be.

2. Q: What happens if I run out of ink?

If you run out of ink, you won't be able to draw any more lines. You can try to erase lines to get some ink back, or you can restart the level.

3. Q: Are there different types of obstacles?

Yes, there are various obstacles like platforms, spikes, and moving objects that you need to avoid or use to your advantage.