[游戏开发]项目实训2022-3-15

子弹射出

完成僵尸的攻击逻辑后，本次目的是完成豌豆射手子弹的的效果，以便后续实现僵尸的受击效果

加入碰撞和刚体效果

给子弹选择collider 2D和rigidbody 2D，同理僵尸也加入碰撞。

实现子弹的旋转和移动

public class Bullet : MonoBehaviour
{

    private Rigidbody2D rigidbody;
    // Start is called before the first frame update
    void Start()
    {
        rigidbody = GetComponent<Rigidbody2D>();
        rigidbody.AddForce(Vector2.right * 300);


    }

    // Update is called once per frame
    void Update()
    {
        transform.Rotate(new Vector3(0, 0, -15f));
    }
}

实现子弹与僵尸碰撞后的效果

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

[CreateAssetMenu(fileName ="GameConf",menuName ="GameConf")]
public class GameConf : ScriptableObject
{
    //游戏配置，存储了一些预制体
    [Tooltip("阳光")]
    public GameObject Sun;

    [Tooltip("太阳花")]
    public GameObject SunFlower;

    [Tooltip("豌豆射手")]
    public GameObject PeaShooter;

    [Header("子弹")]
    [Tooltip("豌豆击中")]
    public Sprite BulletHit;
}

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

public class Bullet : MonoBehaviour
{

    private Rigidbody2D rigidbody;
    private SpriteRenderer spriteRenderer;

    private bool isHit=false;
    // Start is called before the first frame update
    void Start()
    {
        rigidbody = GetComponent<Rigidbody2D>();
        rigidbody.AddForce(Vector2.right * 300);
        spriteRenderer = GetComponent<SpriteRenderer>();

    }

    private void OnTriggerEnter2D(Collider2D coll)
    {
        if (isHit) return;
        if (coll.tag == "Zombie")
        {
            isHit = true;
            //修改击中图片
            spriteRenderer.sprite = GameManager.Instance.GameConf.BulletHit;
            //暂停运动
            rigidbody.velocity = Vector2.zero;
            //下落
            rigidbody.gravityScale = 1;
            //延迟销毁
            Invoke("Destroy", 0.5f);

        }
    }


    private void Destroy()
    {
        Destroy(gameObject);
    }

    // Update is called once per frame
    void Update()
    {

        if (isHit) return;

        transform.Rotate(new Vector3(0, 0, -15f));
    }
}