Design of Decision Tree-Based Face Emotion Interaction in Contextual Game

With the benefits of contextual games and the applications of decision tree, well-designed games can simulate an interactive learning environment where the students can freely explore their essential knowledge and practice skills in context-based scenarios with guidance and feedback. However, on a wide development, face emotions are probably missing part of the current development of decision tree-based contextual games. Therefore, this study integrated views of facial emotions to evoke emotions in making decisions through the games. The study starts to design contextual games where the game mechanics are based on the decision tree model and interactions are based on the player’s decision-making to face emotions. The games were designed as two-dimensional (2D) storytelling game prototypes with HTML5. Game designers and developers manage the user’s experience and emotions along the play through visual effects, sound effects, and narration. This study conducted a pilot exploration to evaluate the effectiveness of the interactive design by collecting perceptions using a verified questionnaire about the technology acceptance model (TAM) from 30 participants. The results revealed that participants positively perceived the decision tree-based face-emotion interaction in the contextual games, and the narrative part was useful for connecting knowledge gained from the games to authentic context, and music given by emotion analysis helped adjust the decisions. They intend to play the games continually and like the design of the decision tree-based face-emotion interaction games. Further experiments are required and planned to reduce the complexity of user interfaces and increase relevant hinder in the games.