adding basic wave tracking and enemy spawning - needs some more work done

Assets/Scripts/Core/GameManager.cs

@@ -1,6 +1,13 @@
+using System.Collections.Generic;
 using UnityEngine;
 using UnityEngine.SceneManagement;
 
+[System.Serializable]
+public class Wave
+{
+    public List<Enemy> enemies;
+}
+
 public class GameManager : MonoBehaviour
 {
     [Header("Stats")]
@@ -19,10 +26,17 @@ public class GameManager : MonoBehaviour
     public float pickupDelay;
     public float scoreMultiplier;
 
+    public List<Wave> waves;
+    public GameObject enemyHolder;
+    private Wave currentWave;
+
+
     // Start is called before the first frame update
     void Start()
     {
         player = GameObject.FindGameObjectWithTag("Player").GetComponent<Player>();
+
+        StartWave();
     }
 
     // Update is called once per frame
@@ -31,13 +45,48 @@ public class GameManager : MonoBehaviour
         
     }
 
+    public void StartWave()
+    {
+        Wave current = waves[wave];
+        if (current != null)
+        {
+            // remove old enemies
+            foreach(Transform child in enemyHolder.transform)
+            {
+                Destroy(child.gameObject);
+            }
+            enemiesConsumed = 0;
+
+            // spawn the enemies
+            currentWave = current;
+
+            for (int i = 0; i < currentWave.enemies.Count; i++)
+            {
+                // spawn enemies in random positions
+                // TODO: do we really want to do this?
+                float spawnZ = Random.Range(Camera.main.ScreenToWorldPoint(new Vector2(0, 0)).z, Camera.main.ScreenToWorldPoint(new Vector2(0, Screen.height)).z);
+                float spawnX = Random.Range(Camera.main.ScreenToWorldPoint(new Vector2(0, 0)).x, Camera.main.ScreenToWorldPoint(new Vector2(Screen.width, 0)).x);
+
+                Vector3 spawnPos = new Vector3(spawnX, player.gameObject.transform.position.y, spawnZ);
+
+                Instantiate(currentWave.enemies[i].gameObject, spawnPos, Quaternion.identity, enemyHolder.transform);
+            }
+        }
+    }
+
     public void EnemyConsumed(float multiplier = 0)
     {
         enemiesConsumed++;
 
-        float incMutliplier = (multiplier > 0) ? multiplier : scoreMultiplier;
+        IncrementScore(10, multiplier);
 
-        score += Mathf.FloorToInt(50 * incMutliplier); // TODO: how do we want this to work exactly?
+        if (enemiesConsumed == currentWave.enemies.Count)
+        {
+            // wave over... start next wave
+            wave++;
+            StartWave();
+
+        }
     }
 
     public void PlayerDed()
@@ -50,9 +99,10 @@ public class GameManager : MonoBehaviour
 
     }
 
-    public void IncrementScore(int val)
+    public void IncrementScore(int val, float multiplier = 0)
     {
-        
+        float incMutliplier = (multiplier > 0) ? multiplier : scoreMultiplier;
+        score += Mathf.FloorToInt(50 * incMutliplier); // TODO: how do we want this to work exactly?
     }
 
     public void RestartGame()

Assets/Scripts/Core/UIManager.cs

@@ -9,6 +9,7 @@ public class UIManager : MonoBehaviour
     public TextMeshProUGUI playerHealthLabel;
     public TextMeshProUGUI gameOverLabel;
     public TextMeshProUGUI scoreLabel;
+    public TextMeshProUGUI waveLabel;
 
     public Button restartButton;
     private  GameManager gameManager;
@@ -27,6 +28,8 @@ public class UIManager : MonoBehaviour
 
         scoreLabel.text = "Score: " + Mathf.Round(gameManager.score).ToString();
 
+        waveLabel.text = "Wave: " + (gameManager.wave + 1).ToString();
+
         if (gameManager.player.health <= 0)
         {
             gameOverLabel.gameObject.SetActive(true);