TO SQUASH: Shark sparks.

Assets/Scripts/Game/LevelEnder.cs

@@ -279,6 +279,7 @@ public class LevelEnder : MonoBehaviour
         cakeSpawner.StartSpawning();
         ballSpawner.StartSpawning();
         multiplierSpawner.Reset();
+        sharkSpawner.Reset();
 
         // Reset state.
         levelEnded = false;

Assets/Scripts/Game/Shark.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: a68da2f7dbe6b99dfb0fc455293e9bad
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: 

Assets/Scripts/Game/Shark/Shark.cs

@@ -15,6 +15,8 @@ public class Shark : NotifierBase
 
     public Player player;
 
+    public GameObject sparkPrefab;
+
     public SpriteRenderer gameBoardSpriteRenderer;
 
     private Bounds? gameBoardBounds = null;
@@ -39,6 +41,8 @@ public class Shark : NotifierBase
 
     private static int sharkKillPoints = 1000;
 
+    private static float sparkSpawnIntervalSeconds = 1.0f / 10.0f;
+
     private bool spawnFinished = false;
 
     [SerializeField]
@@ -73,6 +77,8 @@ public class Shark : NotifierBase
 
     private float currentTargetTimer = 0f;
 
+    private float sparkSpawnTimer = 0f;
+
     private bool killed = false;
 
     // Start is called once before the first execution of Update after the MonoBehaviour is created
@@ -268,10 +274,35 @@ public class Shark : NotifierBase
             Vector2 nextPosition = currentPosition + forward * (currentSpeed * Time.fixedDeltaTime);
             transform.position = new Vector3(nextPosition.x, nextPosition.y, transform.position.z);
 
+            float movedDistanceSqr = (nextPosition - currentPosition).sqrMagnitude;
+            if (movedDistanceSqr > 0.000001f)
+            {
+                sparkSpawnTimer += Time.fixedDeltaTime;
+                while (sparkSpawnTimer >= sparkSpawnIntervalSeconds)
+                {
+                    SpawnSpark();
+                    sparkSpawnTimer -= sparkSpawnIntervalSeconds;
+                }
+            }
+            else
+            {
+                sparkSpawnTimer = 0f;
+            }
+
             angle = QuantizeAngleToTen(currentHeadingAngle);
         }
     }
 
+    private void SpawnSpark()
+    {
+        if (sparkPrefab == null)
+        {
+            return;
+        }
+
+        Instantiate(sparkPrefab, transform.position, Quaternion.identity);
+    }
+
     private Vector2 ChooseRandomTarget()
     {
         Bounds bounds = movementBounds.Value;

Assets/Scripts/Game/Shark/SharkSpark.cs

@@ -0,0 +1,9 @@
+using UnityEngine;
+
+public class SharkSpark : MonoBehaviour
+{
+    public void DestroySpark()
+    {
+        Destroy(gameObject);
+    }
+}

Assets/Scripts/Game/Shark/SharkSpark.cs.meta

@@ -0,0 +1,2 @@
+fileFormatVersion: 2
+guid: bc6262e498fa2d2eba7d1e3d1b58f1cb