koobas.hobune.stream
Flip sprites in enemy spawner
I am so close to figuring this out. A random running player is selected from the array and placed in a random spawn location (also obtained from an array). If the player spawns on the right he faces and runs to the left side and vice versa. I have gotten my code to do this, but it is inconsistent with the player sometimes spawning in the wrong direction. What is causing this? Thanks in advance!
Here's my code:
using UnityEngine; using System.Collections; using System.Collections.Generic;
public class TempSpawner : MonoBehaviour{
public float runningPlayerSpeed;
public Transform []spawnPoints;
public float spawnTime = 2f;
public GameObject [] Players;
public SpriteRenderer mySpriteRenderer;
public float minSpeed;
public float maxSpeed;
private float currentSpeed;
void Awake ()
{
mySpriteRenderer = GetComponent<SpriteRenderer>();
}
void Start(){
InvokeRepeating ("SpawnPlayers", spawnTime, spawnTime);
currentSpeed = Random.Range (minSpeed, maxSpeed);
int spawnIndex = Random.Range (0, spawnPoints.Length);
foreach (var player in Players) {
if (spawnPoints [spawnIndex].position.x == 10) {
player.GetComponent <SpriteRenderer > ().flipX = true;
}
else if (spawnPoints [spawnIndex].position.x == -10) {
player.GetComponent <SpriteRenderer > ().flipX = false;
}
}
}
void Update(){
float amountToMove = currentSpeed * Time.deltaTime;
transform.Translate (Vector3.right * amountToMove);
int spawnIndex = Random.Range (0, spawnPoints.Length);
//int objectIndex = Random.Range (0, Players.Length);
foreach (var player in Players ){
if (spawnPoints [spawnIndex].position.x == 10) {
player.GetComponent <SpriteRenderer > ().flipX = true;
//SpriteRenderer sr = gameObject.GetComponent<SpriteRenderer>();
//sr.flipX = true;
//Players [objectIndex].GetComponent <SpriteRenderer > (mySpriteRenderer );
//mySpriteRenderer.flipX = true;
//Players [objectIndex].transform.localScale.x == -1f;
//mySpriteRenderer.flipX = true;
//GameObject.FindGameObjectsWithTag ("Running Players");
} else if (spawnPoints [spawnIndex].position.x == -10) {
player.GetComponent <SpriteRenderer > ().flipX = false;
}
}
}
void SpawnPlayers(){
int spawnIndex = Random.Range (0, spawnPoints.Length);
int objectIndex = Random.Range (0, Players.Length);
Instantiate (Players [objectIndex], spawnPoints [spawnIndex].position, spawnPoints [spawnIndex].rotation );
}
}
I don't quite follow what you're doing above, but it looks more complex than necessary. Additionally, I wonder if you're problem is related to the fact that you're trying to use an "==" comparison on a float variable (position.x == 10 and postion .x == -10). That's potentially problematic.
By the looks for your code, I guess your spawn points are only 10 or -10 in the x, right? Perhaps replacing this:
if (spawnPoints [spawnIndex].position.x == 10) {
player.GetComponent <SpriteRenderer > ().flipX = true;
}
else if (spawnPoints [spawnIndex].position.x == -10) {
player.GetComponent <SpriteRenderer > ().flipX = false;
}
WIth something like this might work?
player.GetComponent<SpriteRenderer>().flipX = spawnPoints[spawnIndex].position.x > 0;
That has a few advantages, including:
much simpler
much safer (no == comparison against a float var)
That will assign flipX = true if the position.X is > 0 (so the "10") and false if the position.x < 0 (so, the "-10"). Also, since there's no "==" check against a float variable, it's a much safer comparison.
It looks like you're doing the same basic foreach loop in both Start() and Update(). Again, I'm not sure what your intent is there, but I assume you can change both to something like the above.
Thanks for getting back to me! I am still having the same issue after including your code. Some of the players spawn facing the correct side, but others are not. It's very random. I don't understand what the problem is! Does it have something to do with the gameobjects never being destroyed? I was going to add this in later, but maybe this is causing problems. So close!!
Here is my updated code:
public class TempSpawner : $$anonymous$$onoBehaviour{
public Transform []spawnPoints; public float spawnTime = 2f; public GameObject [] Players;
void Start(){
InvokeRepeating ("SpawnPlayers", spawnTime, spawnTime);
}
void Update(){
int spawnIndex = Random.Range (0, spawnPoints.Length);
foreach (var player in Players) {
player.GetComponent ().flipX = spawnPoints [spawnIndex].position.x > 0; } }
void SpawnPlayers(){
int spawnIndex = Random.Range (0, spawnPoints.Length);
int objectIndex = Random.Range (0, Players.Length);
Instantiate (Players [objectIndex], spawnPoints [spawnIndex].position, spawnPoints [spawnIndex].rotation );
}
}
