83 lines
2.0 KiB
C#
83 lines
2.0 KiB
C#
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using UnityEngine;
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using UnityEngine.UI;
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using frame8.Logic.Misc.Visual.UI;
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using Com.ForbiddenByte.OSA.Core;
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namespace Com.ForbiddenByte.OSA.Util
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{
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[RequireComponent(typeof(Scrollbar))]
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public class ScrollbarRotateOnPull : MonoBehaviour
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{
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[SerializeField]
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float _DegreesOfFreedom = 5f;
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[SerializeField]
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float _RotationSensivity = .5f;
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IOSA _Adapter;
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RectTransform _HandleRT;
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Vector2 _SrollbarPivotOnInit;
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void Start()
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{
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_Adapter = GetComponentInParent<IOSA>();
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_HandleRT = transform as RectTransform;
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//_HandleRT = _Scrollbar.handleRect;
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_SrollbarPivotOnInit = _HandleRT.pivot;
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}
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void Update()
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{
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if (_Adapter == null)
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return;
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float pullAmount01 = 0f;
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var piv = _SrollbarPivotOnInit;
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int sign = 1;
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if (_Adapter.GetContentSizeToViewportRatio() > 1d)
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{
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var insetStart = _Adapter.ContentVirtualInsetFromViewportStart;
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if (insetStart > 0d)
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{
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if (_Adapter.IsHorizontal)
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{
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pullAmount01 = (float)(insetStart / _Adapter.BaseParameters.Viewport.rect.width);
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piv.x = 0f;
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}
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else
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{
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pullAmount01 = (float)(insetStart / _Adapter.BaseParameters.Viewport.rect.height);
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piv.y = 1f;
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}
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}
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else
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{
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var insetEnd = _Adapter.ContentVirtualInsetFromViewportEnd;
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if (insetEnd > 0d)
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{
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sign = -1;
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pullAmount01 = (float)(insetEnd / _Adapter.GetContentSize());
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if (_Adapter.IsHorizontal)
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{
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pullAmount01 = (float)(insetEnd / _Adapter.BaseParameters.Viewport.rect.width);
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piv.x = 1f;
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}
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else
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{
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pullAmount01 = (float)(insetEnd / _Adapter.BaseParameters.Viewport.rect.height);
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piv.y = 0f;
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}
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}
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}
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}
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if (_HandleRT.pivot != piv)
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_HandleRT.pivot = piv;
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var euler = _HandleRT.localEulerAngles;
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// Multiplying argument by _Speed to speed up sine function growth
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euler.z = Mathf.Sin(pullAmount01 * _RotationSensivity * Mathf.PI) * _DegreesOfFreedom * sign;
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_HandleRT.localEulerAngles = euler;
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}
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}
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}
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