using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class ScrollerScript : MonoBehaviour {
// Use this for initialization
void Start () {
StartCoroutine(OnMouseDown());
}
IEnumerator OnMouseDown()
{
Vector3 screenSpace = Camera.main.WorldToScreenPoint(transform.position);
Vector3 offSet = transform.position - Camera.main.ScreenToViewportPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, Input.mousePosition.z));
while (Input.GetMouseButton(0))
{
Vector3 curScreenSpace = new Vector3(Input.mousePosition.x, Input.mousePosition.y, Input.mousePosition.z);
Vector3 curPosition = Camera.main.ScreenToViewportPoint(curScreenSpace) + offSet;
transform.position = curPosition;
yield return new WaitForFixedUpdate();
}
}
// Update is called once per frame
void Update () {
if (Input.GetAxis("Mouse ScrollWheel") < 0)
{
if (Camera.main.fieldOfView <= 100)
Camera.main.fieldOfView += 2;
if (Camera.main.orthographicSize <= 20)
Camera.main.orthographicSize += 0.5F;
}
if (Input.GetAxis("Mouse ScrollWheel") > 0)
{
if (Camera.main.fieldOfView > 2)
Camera.main.fieldOfView -= 2;
if (Camera.main.orthographicSize >= 1)
Camera.main.orthographicSize -= 0.5F;
}
}
}
PS:袁小兵手写