Open-sourced some code

Scripts/Game Objects/CameraController.cs

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+using System;
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class CameraController : MonoBehaviour {
+	//public access members
+	public GameObject targetObject;
+	public Vector3 offset;
+	public float lerpSpeed = 2f;
+
+	Vector2 peek = new Vector2(0, 0);
+
+	//private members
+	Vector3 virtualLocation;
+
+	void Start() {
+		virtualLocation = transform.position;
+	}
+
+	void Update() {
+		//only continue if the target has been set
+		if (targetObject == null) {
+			return;
+		}
+
+		//cache the position we want to move to
+		Vector3 targetPosition = targetObject.transform.position + offset + new Vector3(peek.x, peek.y, 0f);
+
+		//If the distance is small, short circuit the lerp, so we don't have sudden pops in camera motion.
+		if ((targetPosition - virtualLocation).sqrMagnitude > 0.01f) {
+			//Interpolate to the target location.
+			virtualLocation = Vector3.Lerp(virtualLocation, targetPosition, lerpSpeed * Time.deltaTime);
+
+			//Snap to pixel coordinates
+			Vector3 snapped = virtualLocation;
+
+			snapped.x = Mathf.Round(snapped.x * 100) / 100;
+			snapped.y = Mathf.Round(snapped.y * 100) / 100;
+
+			snapped.z = transform.position.z; //BUGFIX
+
+			transform.position = snapped;
+		}
+	}
+
+	public Vector2 GetPeek() {
+		return peek;
+	}
+
+	public void SetPeek(Vector2 newPeek, float delay = 0.5f) {
+		peek = new Vector2(0f, 0f);
+		StartCoroutine(SetPeekAfter(delay, newPeek)); //NOTE: a delay to peeking, for smooth gameplay
+	}
+
+	IEnumerator SetPeekAfter(float delay, Vector2 addition) {
+		yield return new WaitForSeconds(delay);
+		peek = addition;
+	}
+
+	public void ResetPeek() {
+		peek = new Vector2(0, 0);
+	}
+}