Layar Judul

Pelajaran 20 dari 21 dalam kursus Game Unity: Sky Lanes di Coddy.

Permainan kini memiliki awal: layar pembuka menampilkan nama, skor terbaik, dan petunjuk untuk melompat agar permainan dimulai. Jalan tetap diam dan tombol tidak melakukan apa pun sampai tombol lompat (Space atau W) memulai permainan.

Ini memerlukan status kedua selain over: running. Awalnya bernilai false, lompatan mengubahnya menjadi true dan GameOver mengubahnya kembali menjadi false. \n dalam pesan memulai baris baru:

messageText.text = "My Game\nBest: " + PlayerPrefs.GetInt("BestScore", 0) + "\nPress to start";

Semua yang ada di Update dan menggerakkan permainan diletakkan setelah if (!running) return;, sehingga tidak ada yang bergerak pada layar pembuka.

Tantangan

Sedang

Buka game pada layar judul yang menunggu lompatan.

Di GameManager, tambahkan public bool running;. Start mengatur speed = 0f dan messageText.text = "Sky Lanes\nBest: " + PlayerPrefs.GetInt("BestScore", 0) + "\nJump to run";.
Di Update, Space atau W saat !running && !over mengatur running = true dan pesan kosong; lalu if (!running) return;.
GameOver dimulai dengan if (!running) return; dan running = false;.
Di Runner, baca tombol dan pemicu hanya saat game.running.

Tekan tombol “Main”: layar judul menunggu sampai kamu melompat. Lalu tekan tombol “Periksa”.

Coba sendiri

using UnityEngine;

public class Runner : MonoBehaviour
{
    public float laneWidth = 2.5f;
    public float laneSpeed = 16f;
    public float jumpHeight = 1.6f;
    public float gravity = -40f;
    public float slideTime = 0.7f;
    public float magnetTime = 8f;

    public int lane;
    public float magnet;
    public bool shield;

    private CharacterController controller;
    private GameManager game;
    private Renderer body;
    private float fallSpeed;
    private float slide;
    private Color color;

    void Start()
    {
        controller = GetComponent<CharacterController>();
        game = FindFirstObjectByType<GameManager>();
        body = GetComponent<Renderer>();
        color = body.material.color;
    }

    void Update()
    {
        if (!game.over)
        {
            if (Input.GetKeyDown(KeyCode.A) || Input.GetKeyDown(KeyCode.LeftArrow)) lane = Mathf.Max(-1, lane - 1);
            if (Input.GetKeyDown(KeyCode.D) || Input.GetKeyDown(KeyCode.RightArrow)) lane = Mathf.Min(1, lane + 1);
            bool jump = Input.GetKeyDown(KeyCode.W) || Input.GetKeyDown(KeyCode.UpArrow) || Input.GetKeyDown(KeyCode.Space);
            if (jump && controller.isGrounded)
            {
                fallSpeed = Mathf.Sqrt(jumpHeight * -2f * gravity);
                StopSlide();
            }
            if ((Input.GetKeyDown(KeyCode.S) || Input.GetKeyDown(KeyCode.DownArrow)) && controller.isGrounded)
            {
                slide = slideTime;
                Resize(0.5f);
            }
        }

        if (slide > 0f)
        {
            slide -= Time.deltaTime;
            if (slide <= 0f) StopSlide();
        }
        if (magnet > 0f) magnet -= Time.deltaTime;

        if (controller.isGrounded && fallSpeed < 0f) fallSpeed = -2f;
        fallSpeed += gravity * Time.deltaTime;

        float targetX = lane * laneWidth;
        float x = Mathf.MoveTowards(transform.position.x, targetX, laneSpeed * Time.deltaTime);
        Vector3 move = new Vector3(x - transform.position.x, fallSpeed * Time.deltaTime, 0f);
        controller.Move(move);

        body.material.color = shield ? new Color(0.3f, 0.9f, 1f) : color;
        ShowPower();
    }

    void StopSlide()
    {
        if (transform.localScale.y < 1f) Resize(1f);
        slide = 0f;
    }

    void Resize(float height)
    {
        controller.enabled = false;
        transform.position += Vector3.up * (height - transform.localScale.y);
        transform.localScale = new Vector3(1f, height, 1f);
        controller.enabled = true;
    }

    void ShowPower()
    {
        string text = "";
        if (magnet > 0f) text = "Magnet " + Mathf.CeilToInt(magnet);
        if (shield) text += (text == "" ? "" : "   ") + "Shield";
        game.powerText.text = text == "" ? " " : text;
    }

    void OnTriggerEnter(Collider other)
    {
        if (game.over) return;
        if (other.CompareTag("Obstacle"))
        {
            if (shield)
            {
                shield = false;
                Destroy(other.gameObject);
                return;
            }
            game.GameOver();
        }
        else if (other.CompareTag("Coin"))
        {
            game.AddCoin();
            Destroy(other.gameObject);
        }
        else if (other.CompareTag("Magnet"))
        {
            magnet = magnetTime;
            Destroy(other.gameObject);
        }
        else if (other.CompareTag("Shield"))
        {
            shield = true;
            Destroy(other.gameObject);
        }
    }
}