There are a number of instruments that aim to indicate whether a surface is horizontal or vertical, such as the display of the surface level and the display of horizontal - level sanitary facilities. Traditional and modern level meters have a slightly curved glass tube that is incompletely filled with a liquid and leaves bubbles in the tube. The bubbles move in a straight line, which is usually marked by a middle position. Bubble Level App is an app for iOS, Android and Windows Phone devices as well as Android tablets and smartphones. Level is a game with linear progression, there are discrete goals to be met, and each level is performed with a game development software developed for the building levels. Level editing tools are integrated into the game and can be run in the level editing tool integrated into the Bubble Level app. One of the first 3D games to become popular due to fan content was Doom, and it was one of the first games of the genre that took a considerable amount of time to design in this area, unlike other text-based games of its time. The development of a level editor takes a lot of time and creates levels only for certain game engines. It is more time and cost efficient to publish multiple games with the same engine, instead of developing a new engine and level - editor for each game. A-level designers are game designers who create environments and scenarios with the level editor and other tools. They will work on levels as wildcard prototypes and on an incomplete but complete version of the game. In contrast to the graphics required by game artists, they work with placeholders and prototypes to achieve a uniform layer and clear layout. Video game programmers usually produce a level editor design tool that is used by designers. A person who designs or creates a level can use a variety of tools, but they all work the same way, regardless of the level editor. These are different from the levels because they are bound to the mechanics and rules defined in other normal game levels, but mini-games can use different rules and game styles and do not necessarily have to play in a different environment. Mini games are sub-games or micro-games that contain various gameplay elements from the main game. Video games often contain shorter video games and minIGames are often shorter than the games they contain. Minigame can be optional and probably contain a short period of time, such as a few seconds or even minutes. These areas are not usually discovered by casual players, but rather discovered and documented by dedicated players. There are many map errors that level designers try to avoid and sometimes go unnoticed for a while. In multiplayer cards, players can reach areas of the map that are actually inaccessible, such as by reaching an advantageous roof position or camping with other players. In some cases, special mapping tools can be developed that automatically detect if you have reached a deadlock. Players can get stuck in the map geometry and have no way to escape or die or fall out of the level and land on the ground. This effectively avoids the use of a load screen and the transition from one layer to another seems to be seamless. Usually most games would load a single level or level assets at once, and when the player has completed the level, the next level would be loaded. When the game loads level information from memory, no loading screens are presented to players. This is called level streaming or game streaming and is often used as a metaphor for the perception of a fully connected space. A bonus level is a video game that is designed to reward the player or players and typically allow them to earn additional points or power-ups. Bonus levels have no enemy dangers and replace or simply throw away striking enemies or dangers. Many bonus levels must be activated or discovered in some way, and certain conditions must be met to access them. In some objects, an action can be interpreted at a higher level - in conjunction with a higher purpose or "why" to execute it. A lower-level term is associated with subordinate means of how you perform; for some objects, it may interpret the action as a lower-level term associated with a subordinate meaning of the "how" of your performance. Here too, constructions of higher planes are encouraged by greater psychological distance, and since they serve to depict psychologically distant events, their activation should make people think about events in psychologically more distant situations. In one study, participants tended to describe a higher level of satisfaction with their performance, whether it was in school or reading a textbook.