ActionTowerDefense/ActionTowerDefense/Assets/Scripts/SystemReflect/ScreenShake.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class ScreenShake : MonoBehaviour
{
	[Header("摄像机")]
    public Camera mainCam;
    public Camera player0Cam;
    public Camera player1Cam;
	private CameraController cc;

	[Header("受重击/连续受伤时强震强闪")]
	public bool isHeavyShake;
	public float addShakeTime;
	public float heavyShakeLevel;
	public float heavyShakeFps;
	public float maxShineSpeed;

	[Header("震动参数")]
	public float onceShakeTime;         //单次震动时长
	public float shakeLevel;			//震动幅度
	public float shakeFps;				//震动帧率
	private bool isShakeCamera;
	private bool isRedShine;
	private float curShakeLevel;
	private float fps;
	private float frameTime;
	private float shakeDelta = 0.005f;
	public float shakeTime;				//本次震动时长

	[Header("红闪参数")]
	public GameObject redEffect;
	private Image red;
	public float minShineSpeed;
	public float maxAlpha;
	private float shineSpeed;
	private int shineChange;

	void OnEnable()
	{
        if (cc == null)
        {
			cc = GetComponent<CameraController>();
        }
        if (red == null)
        {
			red = redEffect.GetComponent<Image>();
        }
		redEffect.SetActive(true);
		isShakeCamera = true;
		isRedShine = true;
		shakeTime = onceShakeTime;
		curShakeLevel = shakeLevel;
		fps = shakeFps;
		frameTime = 0.03f;
		shineChange = 1;
		shineSpeed = minShineSpeed;
	}

	void OnDisable()
	{
		mainCam.rect = new Rect(0.0f, 0.0f, 1.0f, 1.0f);
		player0Cam.rect = new Rect(0.0f, 0.0f, 1.0f, 1.0f);
		player1Cam.rect = new Rect(0.0f, 0.0f, 1.0f, 1.0f);
		isShakeCamera = false;
		redEffect.SetActive(false);
		isRedShine = false;
		shineSpeed = minShineSpeed;
		isHeavyShake = false;
	}

	public void HeavyShakeShine()
    {
		shakeTime += addShakeTime;
		isHeavyShake = true;
		fps = heavyShakeFps;
		curShakeLevel = heavyShakeLevel;
		shineSpeed = maxShineSpeed;
	}

	// Update is called once per frame
	void Update()
	{
        if (isRedShine)
        {
			float a = red.color.a;
            if (a >= maxAlpha)
            {
				shineChange = -1;
            }
            if (a <= 0)
            {
				shineChange = 1;
            }
			a += shineChange * shineSpeed * Time.deltaTime;
			Color r = red.color;
			r.a = a;
			red.color = r;
        }

		if (isShakeCamera)
		{
			shakeTime -= Time.deltaTime;
			if (shakeTime <= 0)
			{
				enabled = false;
			}

			frameTime += Time.deltaTime;
			if (frameTime > 1.0 / fps)
			{
				frameTime = 0;
				mainCam.rect = new Rect(shakeDelta * (-1.0f + curShakeLevel * Random.value), shakeDelta * (-1.0f + curShakeLevel * Random.value), 1.0f, 1.0f);
				//if (cc.isSplit)
				//{
				//	player0Cam.rect = new Rect(shakeDelta * (-1.0f + curShakeLevel * Random.value), shakeDelta * (-1.0f + curShakeLevel * Random.value), 1.0f, 1.0f);
				//	player1Cam.rect = new Rect(shakeDelta * (-1.0f + curShakeLevel * Random.value), shakeDelta * (-1.0f + curShakeLevel * Random.value), 1.0f, 1.0f);
				//}
				//else
				//{
				//	mainCam.rect = new Rect(shakeDelta * (-1.0f + curShakeLevel * Random.value), shakeDelta * (-1.0f + curShakeLevel * Random.value), 1.0f, 1.0f);
				//}
			}
		}
	}

}