/// Player water.
using UnityEngine;
using System.Collections;

public class PlayerWaterMove : MonoBehaviour {

public float Distance = 100f;

public MoveWater mw;
public CharacterMotor cm;
public PlayerInput pi;

public RaycastHit hit;

// Update is called once per frame
void Update () {

Ray ray = new Ray(transform.position, Vector3.up);

if (Physics.Raycast (ray, out hit, Distance)) {
if(hit.collider.name == "water") {
mw.enabled = true;
cm.enabled = false;
pi.enabled = false;
}
if(hit.collider.name != "water") {
mw.enabled = false;
cm.enabled = true;
pi.enabled = true;
}
}
else {
mw.enabled = false;
cm.enabled = true;
pi.enabled = true;
}
}
}

/// Move water.

using UnityEngine;
using System.Collections;

public class MoveWater : MonoBehaviour {

public float speed = 6.0F;
public float jumpSpeed = 8.0F;
public float gravity = 20.0F;
private Vector3 moveDirection = Vector3.zero;
private CharacterController controller;

public PlayerWaterMove pw;

void Start () {
controller = GetComponent<CharacterController>();
}

void Update() {

moveDirection = new Vector3(Input.GetAxis("Horizontal"), 0, Input.GetAxis("Vertical"));
moveDirection = transform.TransformDirection(moveDirection);
moveDirection *= speed;

if (pw.hit.distance > 0.1f) {
if (Input.GetButton("Jump"))
moveDirection.y = jumpSpeed;
}

moveDirection.y -= gravity * Time.deltaTime;

controller.Move(moveDirection * Time.deltaTime);
}
}