velve - Left 4 Dead AI

http://www.valvesoftware.com/publications/2009/ai_systems_of_l4d_mike_booth.pdf

Left 4 dead 是98年出的单人僵尸逃亡游戏

• Robust Behavior Performance

1. Path finding:
   1. A* + navigation mesh
   2. Move towards "look ahead" point farther down path
   3. use local obstacle ovoidance
2. Climbing
   1. 过程详见ppt内
   2. 以前的游戏是通过增加climbing point来实现的， 由LD来设定所有的攀爬
   3. 本文的好处是可以让玩家自制content

• Competent Human Player proxies
  • 就是帮助玩家的小跟班
• Promote Replayability
  • Replayability:
    • long-term engagement with the game
    • resulting in growth of the game's community.
  • Bad replayability
    • static placement of enemies and loot hinders are bad.
    • multiple sets of manually placed triggers/scripts
  • Active Area Set --beowulf?
  • Spawn periodically by considering player's "emotional intensity"
• Generate Dramatic Game Pacing