Landing on the moon with type-2 fuzzy logic

Abstract

Abstract-In this study, we will present the novel application of Type-2 (T2) fuzzy logic to the popular video game called Lunar Lander. The proposed T2 fuzzy moon landing system structure is composed of the error signal generator and the T2 fuzzy logic control structure which give the opportunity to transform the moon landing problem of the spaceship as a multivariable tracking control problem. The landing problem of the game can be seen as one of the classical multivariable control problems including uncertainties due to the randomization process occurring the game environment. Thus, we will employ T2 fuzzy logic controllers since they are capable of handling a high level of uncertainties. Then, by optimizing the T2 fuzzy moon landing system via the particle swarm optimization, we will show that the resulting T2 fuzzy moon landing system resulted with an adequate control and game performance in the presence of the uncertainties, disturbances and nonlinear system dynamics in comparison with its type-1 and conventional counterparts. We believe that the results of this paper will be an important step for a wider deployment of T2 fuzzy logic in the research area of computer games.

Type-2 Fuzzy Logic Control in Computer Games

“…Furthermore, collected behavior logs of the human players from their plays might also be a source for social scientists [8]. Consequently, several games have been used as test beds such as Pacman [5], Scrabble [6], Super Mario [9], Counter-Strike [2], StarCraft [10], Flappy Bird [11], [12] and, Lunar Lander [13], [14].…”

“…The superiority of IT2-FLCs has been shown in various control engineering applications such as mobile robots [17], [18], [19], [20], unmanned flight systems [21], engine control [22]. Although the mainstream of these researches are based on Double Input IT2-FLCs (DIT2-FLCs) [14], [16], [18], [19], [20], [21], [23], [29], it has also been shown in [21], [26], [27] that Single Input IT2-FLCs (SIT2-FLCs) are easy to design and to deploy to real-time control engineering applications.…”

“…In this chapter, we will present the novel applications of the IT2-FLCs into the research area of computer games. In this context, we will handle two well-known computer games, namely Flappy Bird [11], [12] and Lunar Lander [13], [14], to show the abilities of the IT2-FLCs. From a control engineering point of view, as the game player can be seen as the main controller in a feedback loop, we will transform the game logic of flappy bird into a reference tracking problem while handling the moon landing problem as a position control problem.…”