mousepick

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class MousePick : MonoBehaviour
{

	// 화면상의 마우스로 클릭한 곳을 게임공간의 좌표로 변환하여 찾아내는 것

	// Start is called before the first frame update
	Vector3 vEnd;
	bool bRotate = false;
	void Start()
    {
		vEnd = transform.position;
	}

    // Update is called once per frame
    void Update()
    {
		Picking();
		if(bRotate)
			Rotate();
		else
			Move();
	}

	void Picking()
	{
		if (Input.GetMouseButtonDown(0))
		{
			bRotate = true;
			RaycastHit info;
			Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);

			if (Physics.Raycast(ray, out info))
			{
				Debug.Log(info.collider.name);
				Debug.Log(info.point);
				if (info.collider.tag == "terrain")
				{
					vEnd = info.point;
					vEnd.y += 0.5f;
				}
			}
		}
	}

	void Move()
	{
		float moveSpeed = 10f;
		Vector3 v = transform.position;
		v = Vector3.MoveTowards(v, vEnd, Time.deltaTime*moveSpeed);
		transform.position = v;
	}

	void Rotate()
	{
		float RotateSpeed = 10.0f;
		Vector3 targetDirection = vEnd - transform.position;

		if (Vector3.Dot(transform.forward, targetDirection.normalized).CompareTo(0.99f) >= 0)
			bRotate= !bRotate;

		/*
		Vector3 newDirection = Vector3.RotateTowards(transform.forward, targetDirection, RotateSpeed * Time.deltaTime, 0.0f);
		transform.rotation = Quaternion.LookRotation(newDirection);
		*/

		Vector3 lookat = Vector3.RotateTowards(transform.forward, targetDirection.normalized, Time.deltaTime * 10f, 10f);
		transform.LookAt(transform.position + lookat);
		/*
		Vector3 tmp = transform.eulerAngles;
		tmp.x = 0;
		tmp.z = 0;
		transform.eulerAngles = tmp;
		*/
	}
}