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→鸟群模型
== 鸟群模型 ==
== 鸟群模型 ==
This model is an attempt to mimic the [http://ccl.northwestern.edu/netlogo/models/Flocking Flocking] of birds. (The resulting motion also resembles schools of fish.) The flocks that appear in this model are not created or led in any way by special leader birds. Rather, each bird is following exactly the same set of rules, from which flocks emerge.
This model is an attempt to mimic the [http://ccl.northwestern.edu/netlogo/models/Flocking Flocking] of birds. (The resulting motion also resembles schools of fish.) The flocks that appear in this model are not created or led in any way by special leader birds. Rather, each bird is following exactly the same set of rules, from which flocks emerge.
这个模型的灵感来自克雷格·雷诺兹发明的 [https://web.archive.org/web/20210818090425/http://www.red3d.com/cwr/boids/ Boids]模拟。我们在这里使用的算法与原始Boids算法大致相似，但并不相同。算法的具体细节并不重要——只要你拥'''有对齐、分离和靠近'''，你便能够获得类似于Reynolds最初模型所创造的群体行为。有关鸟群算法，请参见百科词条：[[鸟群算法 Boids]]。
== 运行规则 ==
== 运行规则 ==
每一只鸟遵循三条规则：'''“对齐alignment”'''、'''“分离separation”'''和“'''靠近cohesion”'''。
* “'''对齐”'''指的是鸟会倾向于转向，这样它的移动方向与附近的鸟的移动方向相同。
* “'''对齐”'''指的是鸟会倾向于转向，这样它的移动方向与附近的鸟的移动方向相同。