using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using HedgehogTeam.EasyTouch;
public class DragRound : MonoBehaviour
{
public Transform CenObj;//围绕的物体
public float ratio = 1.0f;//放大缩小速率
public float min_distance = 5.0f; //相机距物体最小距离
public float max_distance = 10.0f;//相机距物体最大距离
//滑动结束时的瞬时速度
Vector3 Speed = Vector3.zero;
//每帧偏差
Vector3 offSet = Vector3.zero;
//速率衰减值
public float decelerationRate = 0.2f;
private Vector3 Rotion_Transform;
private new Camera camera;
void Start()
{
camera = GetComponent<Camera>();
Rotion_Transform = CenObj.position;
}
void Update()
{
// Ctrl_Cam_Move();
Cam_Ctrl_Rotation();
}
private void Awake()
{
EasyTouch.On_PinchIn += OnPinchIn;
EasyTouch.On_PinchOut += OnPinchOut;
}
private void OnPinchIn(Gesture g)
{
float temp = Time.deltaTime * g.deltaPinch + Camera.main.fieldOfView;
temp = temp > 60 ? 60 : temp;
Camera.main.fieldOfView = temp;
}
private void OnPinchOut(Gesture g)
{
float temp = Camera.main.fieldOfView - Time.deltaTime * g.deltaPinch;
temp = temp < 10 ? 10 : temp;
Camera.main.fieldOfView = temp;
}
private void OnDestroy()
{
EasyTouch.On_PinchIn -= OnPinchIn;
EasyTouch.On_PinchOut -= OnPinchOut;
}
//镜头的远离和接近
//public void Ctrl_Cam_Move()
//{
// Vector3 mousePos = camera.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, 0.1f));
// if (Input.GetAxis("Mouse ScrollWheel") > 0 && Vector3.Distance(CenObj.position, camera.transform.position) > min_distance) //放大
// {
// camera.transform.position -= ratio * (camera.transform.position - mousePos);
// }
// if (Input.GetAxis("Mouse ScrollWheel") < 0 && Vector3.Distance(CenObj.position, camera.transform.position) < max_distance) //缩小
// {
// camera.transform.position += ratio * (camera.transform.position - mousePos);
// }
//}
//摄像机的旋转
public void Cam_Ctrl_Rotation()
{
var mouse_x = Input.GetAxis("Mouse X");//获取鼠标X轴移动
var mouse_y = -Input.GetAxis("Mouse Y");//获取鼠标Y轴移动
if (Input.GetMouseButton(0))
{
offSet.x = mouse_x;
offSet.y = mouse_y;
//瞬时速度
Speed = offSet / Time.deltaTime;
}
else
{
Speed *= Mathf.Pow(decelerationRate, Time.deltaTime);
if (Mathf.Abs(Vector3.Magnitude(Speed)) < 1)
{
Speed = Vector3.zero;
}
}
Move(Speed);
}
public void Move(Vector3 speed)
{
if (Vector3.Magnitude(speed) == 0)
{
return;
}
transform.RotateAround(Rotion_Transform, Vector3.up, speed.x * Time.deltaTime * 2.0f);
transform.RotateAround(Rotion_Transform, transform.right, speed.y * Time.deltaTime * 2.0f);
}
}
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