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Unity 4.x Cookbook by Matt Smith, Chico Queiroz

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Controlling object group movement through flocking

Realistic, natural looking flocking behavior (for example, birds, antelopes, or bats) can be created through creating collections of objects with the following four simple rules:

  • Separation: Avoid getting too close to neighbors
  • Avoid obstacles: Turn away from an obstacle which is immediately ahead
  • Alignment: Move in the direction the flock is heading
  • Cohesion: Move towards the location in the middle of the flock

Each member of the "flock" acts independently, but needs to know about the current heading and location of the members of its flock. This recipe shows you how to create a scene of flocking cubes. To keep things simple, we'll only implement basic versions of the last two rules of the preceding ...

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