2D Tile Based Java Swing Game (Watering and Crops)

Finally added crops and watering into my game engine. Basically, when you water a crop, the water meter goes up until it reaches the top, then the meter goes down until the soil is completely dry. Once dry, you can water again until you hit another growth stage. Once you hit the last growth stage, the plant dies. I haven't added item drops yet. The water effects are just particles. They're blue coloured ovals that fade into the background, basically. The droplets have different velocities and lifetimes.