91 lines
2.2 KiB
C#
91 lines
2.2 KiB
C#
using System;
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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using Random = System.Random;
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public class EnemyController : MonoBehaviour
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{
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public Transform target;
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public float speed;
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public float flyForce;
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public short finalHealth = 3;
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private Rigidbody2D _rb;
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private short _hitsToRemove;
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private Random _random = new Random();
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// Start is called before the first frame update
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void Start()
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{
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_rb = GetComponent<Rigidbody2D>();
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}
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private void OnEnable()
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{
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_hitsToRemove = finalHealth;
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}
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// Update is called once per frame
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void FixedUpdate()
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{
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var tr = transform;
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var diff = target.position - tr.position;
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if (_rb.mass < 0.01f)
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{ //Már lelőttük
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if (diff.magnitude > 10)
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{ //Ha már túl messze van
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_rb.velocity = Vector2.zero;
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gameObject.SetActive(false);
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}
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_rb.AddForce(new Vector2(0f, flyForce * _rb.mass * _rb.gravityScale)); //Ne maradjon véletlenül útban
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return;
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}
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diff.Normalize();
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float sp = ((float) _random.NextDouble() / 2f + 1f) * speed; //1 és 1.5 közötti szorzó
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_rb.AddForce(diff * (sp * _rb.mass * _rb.gravityScale));
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if (diff.x * transform.localScale.x < 0) //Ha másfelé néz, mint amerre megy
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{
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var scale = tr.localScale;
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scale.x *= -1;
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tr.localScale = scale;
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}
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}
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private void Die()
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{
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_rb.mass = 0.00001f;
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_rb.gravityScale = 0.01f;
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_rb.freezeRotation = false;
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}
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public bool IsAlive() => _rb.mass > 0.001f;
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private void HitWhileFlying()
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{
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_hitsToRemove--;
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if (_hitsToRemove == 0)
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{
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_rb.velocity = Vector2.zero;
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gameObject.SetActive(false);
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}
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}
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public void Hit()
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{
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if (IsAlive())
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Die();
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else
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HitWhileFlying();
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}
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private void OnCollisionEnter2D(Collision2D other)
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{
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var go = other.gameObject;
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if(!go.CompareTag("Player"))
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return;
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if (IsAlive())
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go.GetComponent<OwnCharacterController>().Hit();
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}
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}
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