/*******************************************************************************//*!\file Screenshake.cs\author Khan Sweetman\par All content © 2015 DigiPen (USA) Corporation, all rights reserved.\par Team That Thumb is Satin

\brief File does does things. COOL things. *//*******************************************************************************/

using UnityEngine;using System.Collections;

public class Screenshake : MonoBehaviour{ [SerializeField] public float ShakeTime = 0.5f; [SerializeField] public float Frequency = 12.0f; [SerializeField] public float Displacement = 0.5f;

// Timers float Timer = 0.0f; float FreqTime = 0.0f; float FreqTimer = 0.0f;

// Direction Vector3 DefaultPos = new Vector3(); Vector3 NextPos = new Vector3(); Vector3 PrevPos = new Vector3();

// Use this for initializationvoid Start ()

{ // Grab variables DefaultPos = transform.localPosition;

// TODO: // - Add an if check to see if we should programatically add the shaker // - else (assume we shake the object directly) { ... }

}

// Wrapper around core of this file. Call whenever you want to shake the camera. public void Shake() { // Update variables before beginning FreqTime = 1.0f / Frequency; FreqTimer = FreqTime; Timer = ShakeTime; PrevPos = NextPos = DefaultPos;

StartCoroutine(ShakeCoroutine()); }

IEnumerator ShakeCoroutine() {

// Shake while there is still time left to shake while (Timer > 0.0f) { // Calculate NewPos every time through the loop PrevPos = NextPos; NextPos = DefaultPos + Random.insideUnitSphere * Displacement;

// Lerping towards this time interval's destination while (FreqTimer > 0.0f) { FreqTimer -= Time.deltaTime; float proportionalTime = (FreqTime - FreqTimer) / FreqTime; transform.localPosition = Vector3.Lerp(PrevPos, NextPos, proportionalTime); yield return null; }

// Update Timer using the time passed in FreqTimer's loop Timer -= FreqTime; FreqTimer = FreqTime; }

// Return to center, aka, the original offset from parent position // Returns in a timespan of FreqTime // Only do this if not being shaken FreqTimer = FreqTime; PrevPos = NextPos; while (transform.localPosition != DefaultPos && Timer < 0.0f) { FreqTimer -= Time.deltaTime; float proportionalTime = 1.0f / ((FreqTime - FreqTimer) / FreqTime); transform.localPosition = Vector3.Lerp(PrevPos, DefaultPos, proportionalTime); yield return null; } }}