GGJ_2021/Assets/Scripts/UI/StartScreen/PlayerJoinUI.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class PlayerJoinUI : MonoBehaviour
{

    [SerializeField]
    private PlayerList m_ConnectedPlayers;

    [SerializeField]
    private RectTransform m_prefab;

    [SerializeField]
    private List<RectTransform> m_zones;

    private int count;


    private void OnEnable()
    {
        m_ConnectedPlayers.OnPlayerJoin += OnPlayerJoin;
    }

    private void OnDisable()
    {
        m_ConnectedPlayers.OnPlayerJoin -= OnPlayerJoin;
    }


    private void OnPlayerJoin(object sender, PlayerData data)
    {
        RectTransform parent = m_zones[count++];
        count = count % m_zones.Count;


        RectTransform newPoster = Instantiate(m_prefab);
        newPoster.parent = parent;

        RectTransform[] children = parent.GetComponentsInChildren<RectTransform>();

        for (int i = 0; i < 10; i++)
        {
            float randomX = Random.Range(parent.rect.xMin + newPoster.rect.width / 2, parent.rect.xMax - newPoster.rect.width / 2);
            float randomY = Random.Range(parent.rect.yMin + newPoster.rect.height / 2, parent.rect.yMax - newPoster.rect.height / 2);

            newPoster.localPosition = new Vector3(randomX, randomY, 0.0f);

            bool isOverlapping = false;
            foreach (RectTransform child in children)
            {
                if (child == parent)
                    continue;

                if (child.rect.Overlaps(newPoster.rect))
                {
                    isOverlapping = true;
                    Debug.Log($"Overlapping with: {child.name} [{i}]");
                }
            }
            if (!isOverlapping)
                break;
        }



        newPoster.GetComponent<PlayerJoinIcon>().Initialise(data);
        newPoster.gameObject.SetActive(true);

    }


}