 Coordinated group movement, the idea: ◦ To have the NPCs move with the illusion of having purpose and coordination  One of the earliest, most successful group behavior  Flocking ◦ Flocks, Herds, and Schools: A Distributed Behavioral Model , Craig Reynolds, SIGGRAPH 1987 ◦ Originally intended for birds, fish and other creatures, but it can be modified for other types of NPCs
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