In a U-shaped deformed folded dipole antenna, a first parallel section having a feeding point includes first and second L-shape sections, and a second parallel section without a feeding point includes first and second opposing side portions and a connecting side portion coupling ends of the first and second opposing side portions. A game instance of a computer-implemented game is generated, where the game instance is associated with a game state of a player using a virtual gameboard. A reservoir vent having open and closed positions, that when opened the reservoir vents to a fourth pressure, and when closed the reservoir does not vent. The first panel may also extend beyond the second panel such that both panels may collectively form a wall.