zombie_mp/Assets/Scripts/Menu/CharacterCustomizer.cs

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

public class CharacterCustomizer : MonoBehaviour
{
    [SerializeField] Characters charactersData;
    public List<CharacterObjects> characterObjects;
    [EasyButtons.Button]
    void clearDuplicates(){
        List<int> duplicates = new List<int>();
        for(int i =0; i < characterObjects.Count; i++){
            if(duplicates.Contains(characterObjects[i].id)){
                characterObjects.RemoveAt(i); 
            }else{
                duplicates.Add(characterObjects[i].id);
            }
        }
    }

    [EasyButtons.Button]
    void clearEmptyObjectsRows(){
        for(int i =0; i < characterObjects.Count; i++){
            bool exist = false;
            foreach(CharacterPreset preset in charactersData.characters){
                if(preset.characterId == characterObjects[i].id){ exist=true;break;}
            }

            if(!exist){characterObjects.RemoveAt(i);}
        }
    }

    [EasyButtons.Button]
    void refresh(){
        validateCharacterData();
    }

    void OnValidate()
    {
        validateCharacterData();
    }

    void validateCharacterData()
    {
        charactersData = Resources.Load<Characters>("characters");
        if (charactersData == null) { Debug.LogError("No Character Data Found!"); return; }

        clearEmptyObjectsRows();

        foreach(CharacterPreset preset in charactersData.characters){
            bool exists = false;
            for(int i =0; i < characterObjects.Count; i++){
                if(characterObjects[i].id == preset.characterId){
                    if(characterObjects[i].name != preset.name){characterObjects[i].name=preset.name;}
                    exists=true;
                }
            }

            if(!exists){characterObjects.Add(new CharacterObjects(preset.characterId,preset.name));}
        }
    }

    public void ChangeCharacter(int characterId){

        foreach(CharacterObjects obj in characterObjects){
            if(obj.id == characterId){
                foreach(GameObject go in obj.body){go.SetActive(true);}
            }else{
                foreach(GameObject go in obj.body){go.SetActive(false);}
                foreach(GameObject go in obj.hair){go.SetActive(false);}
                foreach(GameObject go in obj.gloves){go.SetActive(false);}
                foreach(GameObject go in obj.eyeWears){go.SetActive(false);}
                foreach(GameObject go in obj.tops){go.SetActive(false);}
                foreach(GameObject go in obj.bottoms){go.SetActive(false);}
            }
        }
    }

    public void ChangeCharacter(string characterName){
        ChangeCharacter(GetCharacterId(characterName));
    }

    public int GetCharacterId(string name){
        foreach(CharacterPreset preset in charactersData.characters){
            if(preset.name == name){return preset.characterId;}
        }
        return -1;
    }
}