using UnityEngine;
using System.Collections;

public class WaterWave : MonoBehaviour {
	
	public float scale = 0.5f;
	public float speed = 1f;
	public bool isMultiply = false;//若为true则波浪数变多
	
	private Mesh mesh;
	private Vector3[] baseVertex;
	private Vector3[] nowVertex;
	
	// Use this for initialization
	void Start () 
	{
		mesh = GetComponent<MeshFilter>().mesh;
		baseVertex = mesh.vertices;
		nowVertex = mesh.vertices;
	}
	
	// Update is called once per frame
	void Update () 
	{
		for (int i = 0; i < baseVertex.Length; i++)
		{
			nowVertex[i] = baseVertex[i];
			
			if (isMultiply)
			{
				nowVertex[i].y += Mathf.Sin(Time.time * speed + baseVertex[i].x + baseVertex[i].z) * scale;
			}
			else
			{
				nowVertex[i].y += Mathf.Sin(Time.time * speed + baseVertex[i].x) * scale +
					Mathf.Sin(Time.time * speed + baseVertex[i].z) * scale;
			}
		}
		
		mesh.vertices = nowVertex;
	}
}