Test

Assets/Standard Assets/Utility/FOVKick.cs

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+using System;
+using System.Collections;
+using UnityEngine;
+
+namespace UnityStandardAssets.Utility
+{
+    [Serializable]
+    public class FOVKick
+    {
+        public Camera Camera;                           // optional camera setup, if null the main camera will be used
+        [HideInInspector] public float originalFov;     // the original fov
+        public float FOVIncrease = 3f;                  // the amount the field of view increases when going into a run
+        public float TimeToIncrease = 1f;               // the amount of time the field of view will increase over
+        public float TimeToDecrease = 1f;               // the amount of time the field of view will take to return to its original size
+        public AnimationCurve IncreaseCurve;
+
+
+        public void Setup(Camera camera)
+        {
+            CheckStatus(camera);
+
+            Camera = camera;
+            originalFov = camera.fieldOfView;
+        }
+
+
+        private void CheckStatus(Camera camera)
+        {
+            if (camera == null)
+            {
+                throw new Exception("FOVKick camera is null, please supply the camera to the constructor");
+            }
+
+            if (IncreaseCurve == null)
+            {
+                throw new Exception(
+                    "FOVKick Increase curve is null, please define the curve for the field of view kicks");
+            }
+        }
+
+
+        public void ChangeCamera(Camera camera)
+        {
+            Camera = camera;
+        }
+
+
+        public IEnumerator FOVKickUp()
+        {
+            float t = Mathf.Abs((Camera.fieldOfView - originalFov)/FOVIncrease);
+            while (t < TimeToIncrease)
+            {
+                Camera.fieldOfView = originalFov + (IncreaseCurve.Evaluate(t/TimeToIncrease)*FOVIncrease);
+                t += Time.deltaTime;
+                yield return new WaitForEndOfFrame();
+            }
+        }
+
+
+        public IEnumerator FOVKickDown()
+        {
+            float t = Mathf.Abs((Camera.fieldOfView - originalFov)/FOVIncrease);
+            while (t > 0)
+            {
+                Camera.fieldOfView = originalFov + (IncreaseCurve.Evaluate(t/TimeToDecrease)*FOVIncrease);
+                t -= Time.deltaTime;
+                yield return new WaitForEndOfFrame();
+            }
+            //make sure that fov returns to the original size
+            Camera.fieldOfView = originalFov;
+        }
+    }
+}