Abstract The process of video game development is complex, requiring proficiency in various technologies for design and implementation, including mastery of game engines and associated programming languages. Defining the behaviors of game elements within the necessary subprocesses poses a significant challenge. This challenge arises partly due to the utilization of general-purpose programming languages, which offer a wide range of options and allow tasks to be approached from different angles. This study introduces GameScript, a simplified scripting language designed for video game development. Based on principles of structured programming and inspired by the While language, GameScript focuses on essential game behavior definitions using a limited set of statements, including IF-THEN-ELSE selection and operations related to game elements to create and destroy them, or to modify properties. By using only numeric variables and simple arithmetic and relational operators, GameScript simplifies data handling and allows for the creation of various arcade games with straightforward syntax. Integrated into a multi-agent system game engine, GameScript has been validated through the successful implementation of diverse arcade game mechanics, demonstrating its effectiveness.

Abstract In recent years, indoor or at-home sports have experienced significant growth. However, monotony is a common challenge in these static physical activities. Exergames, a genre of video games that combines physical activity and entertainment, have emerged as an attractive solution. Nevertheless, running on a treadmill and engaging in other activities simultaneously presents additional challenges. The balance and concentration required during running while interacting with a video game demand a special focus on the design of the Exergame. This paper presents a mobile Exergame designed specifically for treadmill running, utilizing interaction with a smartwatch. The game offers natural environments where, through smartwatch technology, it interprets the player's movements, transforming them into running speed and interactive actions by detecting gestures within the game. The main objective is to provide users with a satisfying gaming experience tailored to the characteristics of treadmill running. Particular emphasis has been placed on prioritizing the playful component of this Exergame, recognizing its relevance in the context of treadmill running. To evaluate the achievement of objectives and the proposed hypothesis, a comparative study was conducted between the proposed Exergame and a treadmill running simulator. Participants experienced both experiences and subsequently completed the Game Experience Questionnaire (GEQ), specifically the In-game GEQ version. The results obtained indicate that participants had a better gaming experience in the Exergame than in the simulator. These findings highlight the importance of prioritizing the playful component in Exergames and provide guidelines for future improvements and developments in the field.

Abstract Augmented Reality techniques allow the user to visualize part of the real world through a display device by incorporating graphical information into the existing physical information. In this sense, it is important to know how the physical presence of the user in the augmented reality experience can affect the perception and evaluation of the product. To this end, this work presents a theoretical framework that explains how users perceive and evaluate the benefits and quality of augmentation with augmented reality through their physical presence, compared to visualizing the same experience through a video. The application was developed for the exhibition and sale of ceramic molds. Users viewed graphical information about the mold, placed between them and the screen while seeing themselves in the television as if it was a mirror. The experiments showed that the integration of the product into the environment and the spatial presence of the users had a positive effect on the perceived value in terms of usefulness and enjoyment, improved comfort in the purchase decision, and reinforced the overall opinion of the product.