1 files changed, 69 insertions, 0 deletions
diff --git a/UnitySA.Utility/FOVZoom.cs b/UnitySA.Utility/FOVZoom.cs
new file mode 100644
index 0000000..555f205
--- /dev/null
+++ b/UnitySA.Utility/FOVZoom.cs
@@ -0,0 +1,69 @@
+using System;
+using System.Collections;
+using UnityEngine;
+
+namespace UnitySA.Utility;
+
+[Serializable]
+public class FOVZoom
+{
+	public Camera Camera;
+
+	[HideInInspector]
+	public float originalFov;
+
+	public float FOVIncrease = 3f;
+
+	public float TimeToIncrease = 1f;
+
+	public float TimeToDecrease = 1f;
+
+	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 > 0f)
+		{
+			Camera.fieldOfView = originalFov + IncreaseCurve.Evaluate(t / TimeToDecrease) * FOVIncrease;
+			t -= Time.deltaTime;
+			yield return new WaitForEndOfFrame();
+		}
+		Camera.fieldOfView = originalFov;
+	}
+}