using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class HyperbitDragMouseOrbit : MonoBehaviour
{
public Transform target;
public float distance = 5.0f;
public float xSpeed = 120.0f;
public float ySpeed = 120.0f;
public float yMinLimit = -20f;
public float yMaxLimit = 80f;
public float distanceMin = .5f;
public float distanceMax = 15f;
public float smoothTime = 2f;
float rotationYAxis = 0.0f;
float rotationXAxis = 0.0f;
float velocityX = 0.0f;
float velocityY = 0.0f;
// Use this for initialization
void Start()
{
Vector3 angles = transform.eulerAngles;
rotationYAxis = angles.y;
rotationXAxis = angles.x;
// Make the rigid body not change rotation
if (GetComponent<Rigidbody>())
{
GetComponent<Rigidbody>().freezeRotation = true;
}
}
void LateUpdate()
{
if (target)
{
if (Input.GetMouseButton(0))
{
// 鼠标水平方向上移动,旋转的是物体的Y轴,还要乘上距离
velocityX += xSpeed * Input.GetAxis("Mouse X") * distance * 0.02f;
// 鼠标垂直方向上移动,旋转的是物体的X轴
velocityY += ySpeed * Input.GetAxis("Mouse Y") * 0.02f;
}
rotationYAxis += velocityX;
rotationXAxis -= velocityY;
rotationXAxis = ClampAngle(rotationXAxis, yMinLimit, yMaxLimit);
//Quaternion fromRotation = Quaternion.Euler(transform.rotation.eulerAngles.x, transform.rotation.eulerAngles.y, 0);
Quaternion toRotation = Quaternion.Euler(rotationXAxis, rotationYAxis, 0);
Quaternion rotation = toRotation;
distance = Mathf.Clamp(distance - Input.GetAxis("Mouse ScrollWheel") * 5, distanceMin, distanceMax);
Vector3 negDistance = new Vector3(0.0f, 0.0f, -distance);
Vector3 position = rotation * negDistance + target.position;
transform.rotation = rotation;
transform.position = position;
velocityX = Mathf.Lerp(velocityX, 0, Time.deltaTime * smoothTime);
velocityY = Mathf.Lerp(velocityY, 0, Time.deltaTime * smoothTime);
}
}
public static float ClampAngle(float angle, float min, float max)
{
while(angle < -360F)
angle += 360F;
while (angle > 360F)
angle -= 360F;
return Mathf.Clamp(angle, min, max);
}
}
Unity カメラがターゲット ポイントを中心に回転およびズームします
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