57 lines
2.1 KiB
C#
57 lines
2.1 KiB
C#
using UnityEngine;
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using UnityEngine.EventSystems;
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public class ModelRotationHandler : MonoBehaviour, IPointerDownHandler, IDragHandler
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{
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public Transform modelTransform; // 需要旋转的3D模型的父节点
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public float rotationSpeed = 5f; // 旋转速度
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public float zoomSpeed = 20f; // 缩放速度
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public float minZoom = -10f; // 最小缩放距离
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public float maxZoom = -2f; // 最大缩放距离
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public GameObject GameObject_r_y;
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public GameObject GameObject_r_x;
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public GameObject Camera_pos_z; // 需要缩放的相机对象
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private Vector2 lastMousePosition; // 记录上一次鼠标位置
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public void OnPointerDown(PointerEventData eventData)
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{
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lastMousePosition = eventData.position; // 记录鼠标初始位置
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}
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public void OnDrag(PointerEventData eventData)
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{
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if (modelTransform == null) return;
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Vector2 delta = eventData.position - lastMousePosition; // 计算鼠标移动量
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float rotationX = -delta.y * rotationSpeed * Time.deltaTime;
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float rotationY = delta.x * rotationSpeed * Time.deltaTime;
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GameObject_r_x.transform.Rotate(Vector3.up, rotationY, Space.World); // 水平旋转（左右拖动）
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GameObject_r_y.transform.Rotate(Vector3.right, rotationX, Space.World); // 垂直旋转（上下拖动）
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lastMousePosition = eventData.position; // 更新鼠标位置
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}
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void Update()
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{
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if (modelTransform == null) return;
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GameObject_r_y.transform.position = modelTransform.position;
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if (Camera_pos_z == null) return;
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float scroll = Input.GetAxis("Mouse ScrollWheel");
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if (scroll != 0f)
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{
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Vector3 targetPos = Camera_pos_z.transform.localPosition;
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targetPos.z += scroll * zoomSpeed;
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targetPos.z = Mathf.Clamp(targetPos.z, minZoom, maxZoom);
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// 使用 Lerp 进行平滑缩放
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Camera_pos_z.transform.localPosition = Vector3.Lerp(Camera_pos_z.transform.localPosition, targetPos, Time.deltaTime * 20f);
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}
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}
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} |