Happy glass

The quote is from Happy glass, fill the empty glass with water. Draw lines which will direct the water stream and eliminate obstacles. You can train your logic abilities in this exciting game. The glass isn't filled so it is sad. Relating it to the quote above, I suggest that you fill it with water to the edges. There are a lot of obstacles on the way to the water source. Just use your finger to make a line on the screen. It was suggested that lines be drawn in a way that the water can go to the target and obstacles.