[第二十八天]从0开始的UnityAR手机游戏开发-虚拟摇杆 Joystick 02

新增一个C# Sprite并命名为PlayerController後开始撰写程序码

using UnityEngine;

public class PlayerController : MonoBehaviour
{
	private Rigidbody m_rigidbody;

	public string horizontalAxis = "Horizontal";
	public string verticalAxis = "Vertical";

	private float inputHorizontal;
	private float inputVertical;

	void Awake()
	{
		//抓取挂此脚本物件的Rigidbody
		m_rigidbody = GetComponent<Rigidbody>();
	}

	void Update()
	{
		//抓取方向的数值
		inputHorizontal = SimpleInput.GetAxis(horizontalAxis);
		//抓取前进後退的数值
		inputVertical = SimpleInput.GetAxis(verticalAxis);

		//转弯
		transform.Rotate(0f, inputHorizontal * 0.5f, 0f);
		//前进或後退
		m_rigidbody.AddRelativeForce(new Vector3(0f, 0f, inputVertical) * 30f);

		//前进的数值不等於0的话
		if (inputVertical != 0)
		{
			//rigidbody开始运作
			m_rigidbody.WakeUp();
			//切换小龙的奔跑动画
			GetComponent<Animation>().Play("sj001_run");
		}
		else
		{
			////切换小龙的待机动画
			GetComponent<Animation>().Play("sj001_wait");
			//rigidbody停止运作
			m_rigidbody.Sleep();
		}
	}
}

打开SJ001的Inspector点击Add Component新增Rigidbody和Box Collider，将刚刚写好的C#脚本拖曳给SJ001。
点击Box Collider的Edit Collider按钮Scene会出现一个绿色正方体的边框，拖曳边框里面的正方形调整它的大小。

放在SJ001的PlayerController脚本两个Axis名称必须和Joystick的Axis名称相同

下一章节会教攻击按钮和UI血条