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54 lines
1.9 KiB
54 lines
1.9 KiB
11 months ago
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using UnityEngine;
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using UnityEngine.EventSystems;
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public class DragSize : MonoBehaviour, IDragHandler
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{
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public enum Mode { Height,Width,Left,Right}
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public Mode mode;
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public float MinSize =85f;
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public float MaxSize =850f;
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private float NewSize;
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private RectTransform panelRectTransform;
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void Start()
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{
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panelRectTransform = transform.parent as RectTransform;
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}
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public void OnDrag(PointerEventData data)
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{
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if (Input.GetMouseButton(0))
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{
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if (panelRectTransform == null)
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return;
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if (NewSize < MinSize) NewSize = MinSize;
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if (NewSize > MaxSize) NewSize = MaxSize;
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switch (mode)
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{
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case Mode.Width:
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break;
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case Mode.Height:
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NewSize = Input.mousePosition.y;
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if (NewSize < MinSize) NewSize = MinSize;
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if (NewSize > MaxSize) NewSize = MaxSize;
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panelRectTransform.sizeDelta = new Vector2(panelRectTransform.sizeDelta.x, NewSize);
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break;
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case Mode.Left:
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NewSize = Input.mousePosition.x ;
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if (NewSize < MinSize) NewSize = MinSize;
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if (NewSize > MaxSize) NewSize = MaxSize;
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panelRectTransform.offsetMin = new Vector2(NewSize, panelRectTransform.offsetMin.y);
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break;
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case Mode.Right:
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NewSize = Input.mousePosition.x - Screen.width;
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if (NewSize < MinSize) NewSize = MinSize;
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if (NewSize > MaxSize) NewSize = MaxSize;
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panelRectTransform.offsetMax = new Vector2(NewSize, panelRectTransform.offsetMax.y);
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break;
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}
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}
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}
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}
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