Flocking Day1(커리큘럼 자료 + 2d flocking practice)

flocking study curriculum 

original Boids simulation video

https://www.youtube.com/watch?v=86iQiV3-3IA

 1. theory 

<Craig Reynolds - Boids>

https://www.red3d.com/cwr/boids/

<Daniel Shiffman - autonomous agent>

https://natureofcode.com/book/chapter-6-autonomous-agents/

<Daniel Shiffman - the nature of code - flocking>

https://www.youtube.com/watch?v=qtUV-DoSOpk

 2. 2D flocking simulation tutorial 

https://www.youtube.com/watch?v=payFhNs9hvs&list=PL4CCSwmU04MhfoJTJWA7n2AIB4dq6umeu

 3. 3D flocking simulation tutorial 

https://www.youtube.com/watch?v=2cbLQgCQ6Hc&list=PLI73C1zJus3RSwGG23RXBFualKHpEra6K&t=18s&index=24

 book 

the computational beauty of nature by gary william flake 

https://www.google.com/search?q=computational+beauty+of+nature+pdf&hl=en-KR&authuser=0&source=lnms&sa=X&ved=0ahUKEwiPmqHT1LzfAhWEdt4KHTXzDOsQ_AUICSgA&biw=1436&bih=767&dpr=2

 Theory 

3 rules of flocking

1. separation(격리)

2. alignment(배열)

3. cohesion(응집)  

flocking은 separation, alignment, cohesion의 3가지 규칙을 통합하여 만들어진다. 

Weight(가중치)

flocking의 세 가지 법칙의 'weight'를 적절하게 조절하여 원하는 simulation을 만들어낸다. 

flocking을 control하는 controller의 역할을 함. 

 Unity 2D flocking simulation tutorial 

SetUp

Level 스크립트 작성.

agent(member), enemy 범위(spawnRadius) 내에  랜덤으로 생성하기. 

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
 
public class Level : MonoBehaviour {
 
    public Transform memberPrefab;
    public Transform enemyPrefab;
    public int numberOfMembers;
    public int numberOfEnemies;
    public List<Member> members;
    public List<Enemy> enemies;
    public float bounds;
    public float spawnRadius;
 
    // Use this for initialization
    void Start () {
        members = new List<Member>();
        enemies = new List<Enemy>();
 
        Spawn(memberPrefab, numberOfMembers);
        Spawn(enemyPrefab, numberOfEnemies);
    }
    
    void Spawn(Transform prefab, int count)
    {
        for (int i = 0; i < count; i++)
        {
            Instantiate(prefab, new Vector3(Random.Range(-spawnRadius, spawnRadius), Random.Range(-spawnRadius, spawnRadius), 0),
                        Quaternion.identity);
        }
    }
}
 

결과