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82 lines
2.2 KiB
82 lines
2.2 KiB
using UnityEngine.EventSystems;
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using UnityEngine;
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namespace Level24
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{
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public class RawImageCtrl : MonoBehaviour,IDragHandler,IPointerDownHandler,IPointerUpHandler
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{
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[Header("脚本所控制的物体，为空则控制本身")]
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public RectTransform ctrlTrans=null;
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public int mouseButton_Darg = 0;
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private Vector2 mouseClickPos;
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private Vector2 tempDargPos;
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private float scaleValue = 1;
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public float maxScaleValue;
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public float minScaleValue;
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public void OnDrag(PointerEventData eventData)
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{
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if (Input.GetMouseButton(mouseButton_Darg))
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{
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tempDargPos = Input.mousePosition;
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float distanceX = tempDargPos.x - mouseClickPos.x;
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float distanceY = tempDargPos.y - mouseClickPos.y;
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mouseClickPos = tempDargPos;
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if (ctrlTrans == null)
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{
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this.GetComponent<RectTransform>().position += new Vector3(distanceX,distanceY,0);
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}
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else
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{
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ctrlTrans.position += new Vector3(distanceX, distanceY,0);
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}
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}
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}
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public void OnPointerDown(PointerEventData eventData)
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{
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mouseClickPos = Input.mousePosition;
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}
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public void OnPointerUp(PointerEventData eventData)
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{
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mouseClickPos = Vector2.zero;
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}
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// Start is called before the first frame update
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void Start()
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{
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}
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// Update is called once per frame
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void Update()
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{
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if (Input.GetAxis("Mouse ScrollWheel") != 0)
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{
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scaleValue += Input.GetAxis("Mouse ScrollWheel");
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scaleValue = Mathf.Clamp(scaleValue, minScaleValue, maxScaleValue);
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if (ctrlTrans != null)
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{
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ctrlTrans.transform.localScale = new Vector3(1 * scaleValue, 1 * scaleValue, 1 * scaleValue);
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}
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else
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{
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this.transform.localScale= new Vector3(1 * scaleValue, 1 * scaleValue, 1 * scaleValue);
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}
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}
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}
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}
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}
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