using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class EnemyMovementController : MonoBehaviour {
public float enemySpeed;
Animator enemyAnimator;
//facing
public GameObject enemyGraphic;
bool canFlip = true;
bool facingRight = false;
float flipTime = 5f;
float nextFlipChance = 0f;
//attacking
public float chargeTime;
float startChargeTime;
bool charging;
Rigidbody2D enemyRB;
// Use this for initialization
void Start () {
enemyAnimator = GetComponentInChildren ();
enemyRB = GetComponent ();
}
// Update is called once per frame
void Update () {
if (Time.time > nextFlipChance) {
if (Random.Range (0, 10) >= 5)
flipFacing ();
nextFlipChance = Time.time + flipTime;
}
}
void OnTriggerEnter2D(Collider2D other){
if (other.tag == "Player"){
if (facingRight && other.transform.position.x < transform.position.x) {
flipFacing ();
} else if (!facingRight && other.transform.position.x > transform.position.x) {
flipFacing ();
}
canFlip = false;
charging = true;
startChargeTime = Time.time + chargeTime;
}
}
void OntriggerStay2D(Collider2D other){
if (other.tag == "Player") {
if (startChargeTime < Time.time) {
if (!facingRight)
enemyRB.AddForce (new Vector2(-1, 0) * enemySpeed);
else
enemyRB.AddForce (new Vector2(1, 0) * enemySpeed);
enemyAnimator.SetBool ("isCharging", charging);
}
}
}
void OnTriggerExit2D (Collider2D other ) {
if (other.tag == "Player"){
canFlip = true;
charging = false;
enemyRB.velocity = new Vector2(0f, 0f);
enemyAnimator.SetBool ("isCharging", charging);
}
}
void flipFacing() {
if (!canFlip) return;
float facingX = enemyGraphic.transform.localScale.x;
facingX *= -1f;
enemyGraphic.transform.localScale = new Vector3( facingX, enemyGraphic.transform.localScale.y, enemyGraphic.transform.localScale.z);
facingRight =! facingRight;
}
}
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