65 lines
1.8 KiB
C#
65 lines
1.8 KiB
C#
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using UnityEngine;
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public class ObjDrag : MonoBehaviour
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{
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private Vector3 offset;
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private Camera mainCamera;
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public bool isOn = false;
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void Start()
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{
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// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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mainCamera = Camera.main;
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}
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void OnMouseDown()
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{
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if (isOn)
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{
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// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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Vector3 mouseWorldPos = GetMouseWorldPositionOnPlane();
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>е<EFBFBD>ƫ<EFBFBD><C6AB><EFBFBD><EFBFBD>
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offset = transform.position - mouseWorldPos;
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}
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}
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void OnMouseDrag()
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{
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if (isOn)
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{
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// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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Vector3 mouseWorldPos = GetMouseWorldPositionOnPlane();
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// <20><><EFBFBD><EFBFBD>ƫ<EFBFBD><C6AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
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transform.position = mouseWorldPos + offset;
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}
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}
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private Vector3 GetMouseWorldPositionOnPlane()
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{
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// <20><>ȡ<EFBFBD><C8A1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD>ϵ<EFBFBD>λ<EFBFBD><CEBB>
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Vector3 mouseScreenPos = Input.mousePosition;
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mouseScreenPos.z = mainCamera.WorldToScreenPoint(transform.position).z; // <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ļ<EFBFBD><C4BB><EFBFBD><EFBFBD>ת<EFBFBD><D7AA>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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Vector3 mouseWorldPos = mainCamera.ScreenToWorldPoint(mouseScreenPos);
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӽ<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD>ķ<EFBFBD><C4B7>߷<EFBFBD><DFB7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>
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Vector3 cameraForward = mainCamera.transform.forward;
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// <20><><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>ƽ<EFBFBD>棬<EFBFBD><E6A3AC><EFBFBD>߷<EFBFBD><DFB7><EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ƽ<EFBFBD><C6BD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ǰλ<C7B0><CEBB>
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Plane plane = new Plane(cameraForward, transform.position);
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD><EFBFBD>ߣ<EFBFBD>ָ<EFBFBD><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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Ray ray = mainCamera.ScreenPointToRay(mouseScreenPos);
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float distance;
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if (plane.Raycast(ray, out distance))
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{
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD>Ľ<EFBFBD><C4BD><EFBFBD>
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return ray.GetPoint(distance);
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}
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// <20><><EFBFBD><EFBFBD>û<EFBFBD><C3BB><EFBFBD>ཻ<EFBFBD><E0BDBB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ĵ<EFBFBD>ǰλ<C7B0><CEBB>
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return transform.position;
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}
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}
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