62 lines
1.6 KiB
C#
62 lines
1.6 KiB
C#
using UnityEngine;
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using UnityEngine.UI;
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using UnityEngine.EventSystems;
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public class UIDragSpawner : MonoBehaviour, IBeginDragHandler, IDragHandler, IEndDragHandler
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{
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public RectTransform rectTransform;
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public LayerMask mask;
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private GameObject dragPreview;
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public SimulationModel targetModel;
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Transform objectRoot;
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//private CanvasGroup canvasGroup;
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void Awake()
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{
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objectRoot = ObjectRoot.I.transform;
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}
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public void SetInfo(SimulationModel spawnTarget, Sprite thumbnail)
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{
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this.GetComponent<Image>().sprite = thumbnail;
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targetModel = spawnTarget;
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}
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public void OnBeginDrag(PointerEventData eventData)
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{
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dragPreview = Instantiate(targetModel).gameObject;
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dragPreview.transform.SetParent(objectRoot);
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}
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public void OnDrag(PointerEventData eventData)
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{
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if (dragPreview)
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{
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Ray ray = Camera.main.ScreenPointToRay(eventData.position);
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if (Physics.Raycast(ray, out RaycastHit hit, 100.0f, mask))
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{
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dragPreview.transform.position = hit.point;
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}
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}
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}
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public void OnEndDrag(PointerEventData eventData)
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{
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if (IsPointerOverScrollRect(rectTransform))
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{
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Destroy(dragPreview);
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dragPreview = null;
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return;
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}
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else
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{
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DataManager.I.AddModel(dragPreview.GetComponent<SimulationModel>());
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}
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}
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public bool IsPointerOverScrollRect(RectTransform rt)
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{
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return RectTransformUtility.RectangleContainsScreenPoint(rt, Input.mousePosition);
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}
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}
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