물 채우기 게임

Water Fill Game: How to Play
1. The Goal
The objective is simple: Match the water level to the Target % line. Each round, a new target is randomly generated between 30% and 90%.

2. Controls
Press & Hold: Click and hold the "PRESS & HOLD!" button to start filling the tank.

Release: Let go of the button when you think the water has reached the red target line.

3. Scoring System
Once you release the button, the game calculates how close you were:

Perfect!: Within 2% of the target. (Green)

Good Job!: Within 10% of the target. (Purple)

Too bad...: More than 10% away from the target. (Red)

4. Technical Mechanics (For Developers)
Filling Speed: The water rises every 30ms. You can adjust this in game.js to make it harder or easier.

Randomization: The targetLevel is recalculated after every attempt to keep the gameplay fresh.