bool isInFlight(Player player) { if (player.yVelocity > 0 || player.yPosition > 0) { return true; } else { return false; } }In this code example, we pass a Player object as a parameter to the function isInFlight(). The function checks whether the player's vertical velocity or position is greater than 0 to determine if they are in mid-air. If either of those conditions is met, the function returns true. Otherwise, it returns false. Package/Library: This functionality is typically bundled with video game engines or libraries used to create games. Examples include Unity and Unreal Engine.