Unity Game Show Popup Modal When Click Model Object Without Button

Hello. Here is sampe create popup modal to show when click object on unity game development~

- You must add Pannel to create something for your modal:

- Next, you must add Event System to listent event on your project:

-  Next, Create ShowPopupInfoWithFarmerScript.cs file with script like this:

namespace MainScript {

    using UnityEngine;
    using UnityEngine.UI;
    
    public class ShowPopupInfoWithFarmerScript : MonoBehaviour
    {
        public GameObject popupInfoWithFarmer;
        public string key;

        private void OnMouseDown ()
        {
            Debug.LogError("ff");
            if (popupInfoWithFarmer == null) {
                Debug.LogError("popupInfoWithFarmer is null");
                return;
            }

            if (string.IsNullOrEmpty(key)) {
                Debug.LogError("key is null or empty");
                return;
            }

            PopupInfoWithFarmerController popupInfoWithFarmerController = popupInfoWithFarmer.GetComponent<PopupInfoWithFarmerController>();

            if (popupInfoWithFarmerController == null) {
                Debug.LogError("PopupInfoWithFarmerController is null");
                return;
            }

            // popupInfoWithFarmerController.SetKey(key);
            popupInfoWithFarmer.SetActive(true);
        }
    }
}

-  Next, Create PopupInfoWithFarmerController.cs file with script like this:

namespace MainScript {

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

    public class PopupInfoWithFarmerController : MonoBehaviour
    {
        public string key; 
        
        public void UpLevelPlant()
        {
            Debug.Log(key);
        }
        
        public void UpLevelFarmer()
        {
            Debug.Log(key);
        }

        public void ClosePopup()
        {
            gameObject.SetActive(false);
        }

        public void SetKey(string tmpKey)
        {
            key = tmpKey;
        }

        void Start()
        {
            Debug.Log(key);
            String keyData = "level_" + key;
            if (PlayerPrefs.GetInt(keyData, 0) == 1)
            {
            }
        }
    }
}

- Next: Click Pannel, Change name to PopupInfoWithFarmer and untick check box at left. After, you must add Component Script and add PopupInfoWithFarmerController

- Next, you click your object as you want and add Component Box Collider and add Component Script ShowPopupInfoWithFarmerScript:

Well done! Hope it's help you show modal popup in unity game without button.