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

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+    bottomRight: {r: 1, g: 1, b: 1, a: 1}
+  m_fontColorGradientPreset: {fileID: 0}
+  m_spriteAsset: {fileID: 0}
+  m_tintAllSprites: 0
+  m_StyleSheet: {fileID: 0}
+  m_TextStyleHashCode: -1183493901
+  m_overrideHtmlColors: 0
+  m_faceColor:
+    serializedVersion: 2
+    rgba: 4294967295
+  m_fontSize: 36
+  m_fontSizeBase: 36
+  m_fontWeight: 400
+  m_enableAutoSizing: 0
+  m_fontSizeMin: 18
+  m_fontSizeMax: 72
+  m_fontStyle: 0
+  m_HorizontalAlignment: 1
+  m_VerticalAlignment: 256
+  m_textAlignment: 65535
+  m_characterSpacing: 0
+  m_wordSpacing: 0
+  m_lineSpacing: 0
+  m_lineSpacingMax: 0
+  m_paragraphSpacing: 0
+  m_charWidthMaxAdj: 0
+  m_enableWordWrapping: 1
+  m_wordWrappingRatios: 0.4
+  m_overflowMode: 0
+  m_linkedTextComponent: {fileID: 0}
+  parentLinkedComponent: {fileID: 0}
+  m_enableKerning: 1
+  m_enableExtraPadding: 0
+  checkPaddingRequired: 0
+  m_isRichText: 1
+  m_parseCtrlCharacters: 1
+  m_isOrthographic: 1
+  m_isCullingEnabled: 0
+  m_horizontalMapping: 0
+  m_verticalMapping: 0
+  m_uvLineOffset: 0
+  m_geometrySortingOrder: 0
+  m_IsTextObjectScaleStatic: 0
+  m_VertexBufferAutoSizeReduction: 0
+  m_useMaxVisibleDescender: 1
+  m_pageToDisplay: 1
+  m_margin: {x: 0, y: 0, z: 0, w: 0}
+  m_isUsingLegacyAnimationComponent: 0
+  m_isVolumetricText: 0
+  m_hasFontAssetChanged: 0
+  m_baseMaterial: {fileID: 0}
+  m_maskOffset: {x: 0, y: 0, z: 0, w: 0}
+--- !u!222 &71873947
+CanvasRenderer:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 71873944}
+  m_CullTransparentMesh: 1
 --- !u!1 &85715037
 GameObject:
   m_ObjectHideFlags: 0
@@ -372,6 +507,7 @@ MonoBehaviour:
   m_EditorClassIdentifier: 
   playerHealthLabel: {fileID: 1307309473}
   gameOverLabel: {fileID: 733797117}
+  scoreLabel: {fileID: 71873946}
   restartButton: {fileID: 145060169}
 --- !u!4 &286668900
 Transform:
@@ -967,6 +1103,7 @@ RectTransform:
   - {fileID: 1307309472}
   - {fileID: 733797116}
   - {fileID: 145060168}
+  - {fileID: 71873945}
   m_Father: {fileID: 0}
   m_RootOrder: 7
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
@@ -6118,11 +6255,11 @@ RectTransform:
   m_Father: {fileID: 920563117}
   m_RootOrder: 0
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
-  m_AnchorMin: {x: 0.5, y: 0.5}
+  m_AnchorMin: {x: 0, y: 1}
-  m_AnchorMax: {x: 0.5, y: 0.5}
+  m_AnchorMax: {x: 0, y: 1}
-  m_AnchoredPosition: {x: -388, y: 251}
+  m_AnchoredPosition: {x: 0, y: 0}
   m_SizeDelta: {x: 200, y: 50}
-  m_Pivot: {x: 0.5, y: 0.5}
+  m_Pivot: {x: 0, y: 1}
 --- !u!114 &1307309473
 MonoBehaviour:
   m_ObjectHideFlags: 0
@@ -6361,6 +6498,7 @@ GameObject:
   m_Component:
   - component: {fileID: 2006521497}
   - component: {fileID: 2006521496}
+  - component: {fileID: 2006521498}
   m_Layer: 0
   m_Name: gfdhfgchgfjh
   m_TagString: Untagged
@@ -6383,6 +6521,7 @@ MonoBehaviour:
   baseScore: 0
   patterns: 0100000002000000
   CurrentPattern: 0
+  scoreMultiplier: 0.5
 --- !u!4 &2006521497
 Transform:
   m_ObjectHideFlags: 0
@@ -6398,6 +6537,19 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 12
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!65 &2006521498
+BoxCollider:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 2006521495}
+  m_Material: {fileID: 0}
+  m_IsTrigger: 1
+  m_Enabled: 1
+  serializedVersion: 2
+  m_Size: {x: 1, y: 1, z: 1}
+  m_Center: {x: 0, y: 0, z: 0}
 --- !u!1 &2036477788
 GameObject:
   m_ObjectHideFlags: 0
@@ -6436,7 +6588,7 @@ MonoBehaviour:
   player: {fileID: 0}
   pickups: []
   pickupDelay: 0
-  scoreMultiplier: 0
+  scoreMultiplier: 1.2
 --- !u!4 &2036477790
 Transform:
   m_ObjectHideFlags: 0

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);