Unity Action Game Demo(2)NGUI实现摇杆

Unity Action Game Demo(2)NGUI实现摇杆

Joystick.cs

using UnityEngine;
using System.Collections;

public class Joystick : MonoBehaviour {

    public bool isPress=false;
    private Transform button;

    public static float h = 0;
    public static float v = 0;

    void Awake()
    {
        button = transform.Find("Button");
    }
public void OnPress(bool isPress){
    this.isPress = isPress;
    if (isPress == false)
    {
        button.localPosition = Vector3.zero;
        h = 0;
        v = 0;
    }
}

void Update()
{
    if (isPress)
    {
        print(UICamera.lastTouchPosition);

        Vector2 touchPos = UICamera.lastTouchPosition;
        touchPos -= new Vector2(91,91);
        float distance = Vector2.Distance(Vector2.zero, touchPos);
        if (distance > 73)
        {
            touchPos = touchPos.normalized * 73;
        }
        else
        {
            button.localPosition = touchPos;
        }

        h = touchPos.x / 73;
        v = touchPos.y / 73;
    }
}
}