refractored, added colour in inspector, created demo scene

Assets/Warping Grid/Scripts/Demo_Grid.cs

@@ -0,0 +1,55 @@
+using UnityEngine;
+using System.Collections;
+
+public class Demo_Grid : MonoBehaviour {
+
+    public Grid grid;
+
+    [Header("Explosive")]
+    public float explosiveForce = 2f;
+    public float explosiveRadius = 2f;
+
+    [Header("Implosive")]
+    public float implosiveForce = 2f;
+    public float implosiveRadius = 2f;
+
+    [Header("Directional")]
+    public float directionalForce = 2f;
+    public float directionalRadius = 2f;
+
+    void Update () {
+
+        if(Input.GetMouseButtonUp(0))
+        {
+            grid.ApplyExplosiveForce(explosiveForce, Camera.main.ScreenToWorldPoint(Input.mousePosition), explosiveRadius);
+        }
+        else if(Input.GetMouseButtonUp(1))
+        {
+            grid.ApplyImplosiveForce(implosiveForce, Camera.main.ScreenToWorldPoint(Input.mousePosition), implosiveRadius);
+        }
+
+        var direction = Vector2.zero;
+
+        if(Input.GetKeyUp(KeyCode.LeftArrow))
+        {
+            direction = Vector2.left;
+        }
+        else if (Input.GetKeyUp(KeyCode.DownArrow))
+        {
+            direction = Vector2.down;
+        }
+        else if (Input.GetKeyUp(KeyCode.RightArrow))
+        {
+            direction = Vector2.right;
+        }
+        else if (Input.GetKeyUp(KeyCode.UpArrow))
+        {
+            direction = Vector2.up;
+        }
+
+        if (direction != Vector2.zero)
+        {
+            grid.ApplyDirectedForce(direction * directionalForce, Vector3.zero, directionalRadius);
+        }
+	}
+}