SpaceDroid/My project/Assets/Script/Droid.cs

using System;
using Unity.VisualScripting;
using UnityEditor.SearchService;
using UnityEngine;
using UnityEngine.Experimental.GlobalIllumination;
using UnityEngine.SceneManagement;

public class Droid : MonoBehaviour
{
    // Start is called once before the first execution of Update after the MonoBehaviour is created
    private bool jumpKeyWasPressed = false;
    private float horizontalInput;
    private Rigidbody rigidbodyComponent;
    private bool isGrounded = false;
    private int energy = 0;
    private int rota = 0;
    [SerializeField] private GameObject fusee;
    private UIManager UIManager;
    private int life = 1;
    private int nbrfusee = 1;

    void Start()
    {
        UIManager = FindAnyObjectByType<UIManager>();
        rigidbodyComponent = GetComponent<Rigidbody>();
        StartCoroutine(UIManager.LifeUp(life, nbrfusee));
    }

    // Update is called once per frame
    void Update()
    {
        if(Input.GetKeyDown(KeyCode.Space))
        {
           jumpKeyWasPressed = true;
        }
        horizontalInput = Input.GetAxis("Horizontal");


        if (Input.GetKeyDown(KeyCode.E))
        {
            if (nbrfusee > 0)
            {
                GameObject ball = Instantiate(fusee, transform.position, new Quaternion(90, 90, 0, 0));
                ball.GetComponent<Rigidbody>().linearVelocity =
                new Vector3(20, 0, 0);
                nbrfusee--;
                StartCoroutine(UIManager.LifeUp(life, nbrfusee));
            }
        }
    }

    private void FixedUpdate(){
        int speed = 5;
        if (energy >= 5)
            speed = 10;
        if (jumpKeyWasPressed && isGrounded)
        {
            rigidbodyComponent.AddForce(Vector3.up * speed, ForceMode.VelocityChange);
            jumpKeyWasPressed = false;
        }
        rigidbodyComponent.linearVelocity = new Vector3(horizontalInput * speed, rigidbodyComponent.linearVelocity.y, 0);
    }

    private void OnCollisionStay(Collision collision){
        isGrounded  = true;
    }
    private void OnCollisionExit(Collision collision){
        isGrounded  = false;
    }

    private void OnCollisionEnter(Collision collision)
    {
        if (collision.gameObject.layer == 7)
        {
            rota += 180;
            Transform[] transforms = gameObject.GetComponentsInChildren<Transform>();
            transforms[3].rotation = Quaternion.Euler(0, 0, rota);
        }
        if (collision.gameObject.layer == 10)
        {
            life -=2;
            StartCoroutine(UIManager.LifeUp(life, nbrfusee));
            if (life <= 0)
            {
                StartCoroutine(UIManager.GameOverSequence());
            }
        }
        if (collision.gameObject.layer == 11)
        {
          
        }
    }
    private void OnTriggerEnter(Collider other)
    {
        if (other.gameObject.layer == 3)
        {
            Destroy(other.gameObject);
            energy++;
            life++;
            nbrfusee++;
            StartCoroutine(UIManager.LifeUp(life, nbrfusee));   

        }
        if (other.tag == "exit" ){
            SceneManager.LoadScene(1);
        }
        if (other.tag == "GameOver")
        {
            StartCoroutine(UIManager.GameOverSequence());
        }
    }
}