using UnityEngine;

[RequireComponent(typeof(MeshFilter))]
public class SEGIWaterDisplacement : MonoBehaviour
{
	private MeshFilter meshFilter;

	private Mesh mesh;

	private Vector3[] initialVertices;

	private void Start()
	{
		meshFilter = GetComponent<MeshFilter>();
		mesh = meshFilter.mesh;
		initialVertices = mesh.vertices;
	}

	private void Update()
	{
		Vector3[] vertices = mesh.vertices;
		float num = 1f;
		float num2 = 0.1f;
		for (int i = 0; i < vertices.Length; i++)
		{
			vertices[i].y = 0f + Mathf.Sin(Time.time + initialVertices[i].x * num * 1f) * 0.25f * num2 + Mathf.Sin(Time.time + initialVertices[i].x * num * 0.15278f) * 0.25f * num2 + Mathf.Sin(Time.time * 1.5f + initialVertices[i].x * num * 1.15278f + initialVertices[i].z * num * 0.4f) * 0.25f * num2 + Mathf.PerlinNoise(initialVertices[i].x * 0.85f + Time.time, initialVertices[i].z * 0.85f) * num2 + Mathf.PerlinNoise(initialVertices[i].x * 2.85f + Time.time, initialVertices[i].z * 4.85f) * 0.5f * num2;
		}
		mesh.vertices = vertices;
		mesh.RecalculateNormals();
	}
}