Trying to make 2 Spawn Points for a TD Game, but odd things are happening...

Unity Engine
1

Okay, so I’m attempting to make a 2-Lane scene within my Tower Defense game, I’ve set up 2 lots of Waypoints, each with their own script. I’m thinking of also 3-Lane and 4-Lane versions too… But so far I have come into a rather annoying snag,

Waypoint

using UnityEngine;

public class Waypoints : MonoBehaviour
{
    public static Transform[] points;

    void Awake ()
    {
        points = new Transform[transform.childCount];
        for (int o = 0; o < points.Length; o++)
        {
            points[o] = transform.GetChild (o);
        }
    }

}

Waypoint_2ndLane

using UnityEngine;

public class Waypoints_2ndLane : MonoBehaviour
{
    public static Transform[] points2;

    void Awake ()
    {
        points2 = new Transform[transform.childCount];
        for (int i = 0; i < points2.Length; i++)
        {
            points2[i] = transform.GetChild (i);
        }
    }

}

Plus I have also created a 2nd Lane EnemyMovement script too, so I have 2 seperate enemy prefabs, one with ‘EnemyMovement’ and one with ‘EnemyMovement 2Lane’.

EnemyMovement

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(Enemy))]
public class EnemyMovement : MonoBehaviour {

    private Transform target;
    private int wavepointIndex = 0;

    private Enemy enemy;

    void Start ()
    {
        enemy = GetComponent<Enemy> ();
        target = Waypoints.points[0];
    }

    void Update ()
    {
        Vector3 dir = target.position - transform.position;
        transform.Translate(dir.normalized * enemy.speed * Time.deltaTime, Space.World);

        if (Vector3.Distance (transform.position, target.position) <= 0.2f)
        {
            GetNextWaypoint ();
        }

        enemy.speed = enemy.startSpeed;
    }

    void GetNextWaypoint()
    {
        if (wavepointIndex >= Waypoints.points.Length - 1)
        {
            EndPath ();
            return;
        }
        wavepointIndex++;
        target = Waypoints.points [wavepointIndex];
    }

    void EndPath()
    {
        PlayerStats.Lives--;
        WaveSpawner.EnemiesAlive--;
        Destroy (gameObject);
        if (WaveSpawner.EnemiesAlive == 0) {
            PlayerStats.Money += 10;
        }
    }
}

EnemyMovement_2Lane

using UnityEngine;
using System.Collections;

public class EnemyMovement_2Lane : MonoBehaviour {
   
    private Transform target2;
    private int wavepointIndex = 0;

    private Enemy enemy2;

    void Start ()
    {
        enemy2 = GetComponent<Enemy> ();
        target2 = Waypoints_2ndLane.points2[0];
    }

    void Update ()
    {
        Vector3 dir = target2.position - transform.position;
        transform.Translate (dir.normalized * enemy2.speed * Time.deltaTime, Space.World);
        if (Vector3.Distance (transform.position, target2.position) <= 0.2f)
        {
            GetNextWaypoint2 ();
        }
        enemy2.speed = enemy2.startSpeed;
    }
    void GetNextWaypoint2()
    {
        if (wavepointIndex >= Waypoints_2ndLane.points2.Length - 1)
        {
            EndPath ();
            return;
        }
        wavepointIndex++;
        target2 = Waypoints_2ndLane.points2 [wavepointIndex];
    }

    void EndPath()
    {
        PlayerStats.Lives--;
        WaveSpawner.EnemiesAlive--;
        Destroy (gameObject);
        if (WaveSpawner.EnemiesAlive == 0) {
            PlayerStats.Money += 10;
        }
    }
}

The final bit of coding is the spawning of the waves, I’ve set the 2 spawn points, and they spawn there fine… So I don’t suspect that it’s the spawner causing this…
WaveSpawner

using UnityEngine;
using System.Collections;
using UnityEngine.UI;

public class WaveSpawner : MonoBehaviour {
    public static int EnemiesAlive = 0;
    public Wave[] waves;
    public Transform[] spawnPoint;
    public float timeBetweenWaves = 20f;
    private float countdown = 10f;
    private int waveIndex = 0;
    public Text waveCountdownText;

    void Start ()
    {
        EnemiesAlive = 0;

    }
    void Update()
    {
        if (EnemiesAlive > 0)
        {
            return;
        }
        if (countdown <= 0f)
        {
            StartCoroutine (SpawnWave());
            countdown = timeBetweenWaves;
            return;
        }
        countdown -= Time.deltaTime;
        countdown = Mathf.Clamp (countdown, 0f, Mathf.Infinity);

        waveCountdownText.text = string.Format("Wave " + (waveIndex + 1) + " in {00:00}", countdown);
    }

    IEnumerator SpawnWave()
    {       
        PlayerStats.Rounds++;
        Wave wave = waves [waveIndex];
        for (int i = 0; i < wave.count; i++)
        {
            SpawnEnemy(wave.enemy);
            SpawnEnemy2(wave.enemy);
            yield return new WaitForSeconds(1f / wave.rate);
        }
        waveIndex++;
        if (waveIndex == waves.Length) {
            Debug.Log ("Level Won!");
            this.enabled = false;
        }
    }

    void SpawnEnemy(GameObject enemy)
    {
        Instantiate (enemy, spawnPoint [0].position, spawnPoint [0].rotation);
        EnemiesAlive++;
    }
    void SpawnEnemy2(GameObject enemy)
    {
        Instantiate (enemy, spawnPoint [1].position, spawnPoint [1].rotation);
        EnemiesAlive++;
    }
   
}

The final result is this…

Hopefully someone may be able to assist me on this…

2

You say that you have two separate enemy prefabs, but yet you seem to be using only one type

            SpawnEnemy(wave.enemy);
            SpawnEnemy2(wave.enemy);

Shouldn’t one of them spawn the second type of enemy prefab?

3

That is true… I am using 2 Seperate spawners in the Game, that must mean I’d need 2 seperate WaveSpawner scripts, one for each spawner?

4

Either that or have something like wave.enemy1 and wave.enemy2.

5

Thank you so much! I decided I needed to create a separate wavespawner depending on how many lanes were in that scene. plus I turned the enemy into an Array, so I can easily add more enemies depending on the lane requirements…