1 files changed, 47 insertions, 0 deletions
diff --git a/Assets/Scripts/ColumnPool.cs b/Assets/Scripts/ColumnPool.cs
new file mode 100644
index 0000000..34d10b8
--- /dev/null
+++ b/Assets/Scripts/ColumnPool.cs
@@ -0,0 +1,47 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class ColumnPool : MonoBehaviour {
+
+    public int columnPoolSize = 5;
+    public GameObject columnPrefab;
+    public float spawnRate = 4f;
+    public float columnMin = -1f;
+    public float columnMax = 3.5f;
+
+    private GameObject[] columns;
+    private Vector2 objectPoolPosition = new Vector2(-15f, 25f);
+    private float timeSinceLastSpawned;
+    private float spawnXPosition = 10f;
+    private int currentColumn = 0;
+   
+
+	// Use this for initialization
+	void Start ()
+    {
+        columns = new GameObject[columnPoolSize];
+        for (int i = 0; i < columnPoolSize; i++)
+        {
+            columns[i] = (GameObject)Instantiate(columnPrefab, objectPoolPosition, Quaternion.identity);
+        }
+	}
+	
+	// Update is called once per frame
+	void Update ()
+    {
+        timeSinceLastSpawned += Time.deltaTime;
+
+        if (GameControl.instance.gameOver == false && timeSinceLastSpawned >= spawnRate)
+        {
+            timeSinceLastSpawned = 0;
+            float spawnYPosition = Random.Range(columnMin, columnMax);
+            columns[currentColumn].transform.position = new Vector2(spawnXPosition, spawnYPosition);
+            currentColumn++;
+            if (currentColumn >= columnPoolSize)
+            {
+                currentColumn = 0;
+            }
+        }
+	}
+}