Automatic Generation of Character-Specific Roadmaps for Path Planning in Computer Games

컴퓨터 게임에서의 경로 계획을 위한 캐릭터별 로드맵의 자동 생성

  • 유견아 (덕성여자대학교 컴퓨터공학부)
  • Received : 2007.11.15
  • Accepted : 2008.01.31
  • Published : 2008.05.31

Abstract

Path planning is gaining more weight in computer games and virtual reality as the number of self-moving characters increases. In the roadmap approach, the map of possible paths is built in advance to plan paths for a character, whose advantage is to provide high-quality paths. On the other hand, a disadvantage is that the road map doesn't reflect properties of characters such as their sizes because they move on the same map once the road map is constructed. In this paper we propose an efficient method to build a different road map for each character so that it can use its own map for path-planning. This method is efficient because the whole map is built once by applying the Visibility Graph regardless of the number of characters and walkable paths are incrementally inserted according to the sizes of characters. The effects of using separate roadmaps are demonstrated through simulations and the trade-offs accompanied with these effects are analyzed.

Acknowledgement

Supported by : 덕성여자대학교