98 lines
2.8 KiB
C#
98 lines
2.8 KiB
C#
using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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public class EnemyController : MonoBehaviour{
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public float speed;
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Vector2 velocity = Vector2.zero;
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[Range(0, .3f)] public float movementSmoothing = .1f;
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public GameObject bloodExplosion;
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public float turnTime;
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float time;
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float horizontalFacing = 1;
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GameObject player;
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Rigidbody2D rb2d;
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[Space]
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public Transform boxDetectionPos;
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public LayerMask whatIsPlayer;
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public float boxDetectionSize;
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bool playerDetected;
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bool detectPlayer;
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[Space]
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public Animator anim;
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// Start is called before the first frame update
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void Start(){
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rb2d = GetComponent<Rigidbody2D>();
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}
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bool dead;
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// Update is called once per frame
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void Update(){
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if (!playerDetected){
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time += Time.deltaTime;
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if (time >= turnTime){
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horizontalFacing *= -1;
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Flip(horizontalFacing);
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time = 0;
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}
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detectPlayer = Physics2D.OverlapCircle(boxDetectionPos.position, boxDetectionSize, whatIsPlayer);
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if (detectPlayer){
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anim.SetBool("Running", true);
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playerDetected = true;
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}
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}
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else{
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if(Mathf.Abs(player.transform.position.x - transform.position.x) >= .1f ){
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Flip(Mathf.RoundToInt(Mathf.Clamp((player.transform.position.x - transform.position.x) * 100, -1f, 1f)));
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}
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}
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}
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void FixedUpdate(){
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if (player != null && playerDetected && !dead){
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Vector2 targetVelocity = new Vector2(Mathf.RoundToInt(Mathf.Clamp(player.transform.position.x - transform.position.x, -1f, 1f)) * speed, rb2d.velocity.y);
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rb2d.velocity = Vector2.SmoothDamp(rb2d.velocity, targetVelocity, ref velocity, movementSmoothing);
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}
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}
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void Flip(float h){
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transform.localScale = new Vector3(Mathf.Abs(transform.localScale.x) * h, transform.localScale.y, transform.localScale.z);
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}
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public void WhoIsPlayer(GameObject player){
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this.player = player;
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}
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public void Die(){
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GetComponent<CapsuleCollider2D>().isTrigger = true;
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rb2d.velocity = Vector2.zero;
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rb2d.AddForce(new Vector2(-horizontalFacing * 10, 15), ForceMode2D.Impulse);
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Invoke("DeathExplode", 1);
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anim.SetTrigger("Die");
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dead = true;
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}
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void DeathExplode(){
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Instantiate(bloodExplosion, transform.position, Quaternion.identity);
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Destroy(gameObject);
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}
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void OnTriggerEnter2D(Collider2D col){
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if(col.gameObject.tag == "InstantDeath"){
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Die();
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}
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}
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void OnDrawGizmos(){
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Gizmos.color = Color.red;
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Gizmos.DrawWireSphere(boxDetectionPos.position, boxDetectionSize);
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}
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}
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