85 lines
2.8 KiB
C#
85 lines
2.8 KiB
C#
/// Credit Breyer
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/// Sourced from - http://forum.unity3d.com/threads/scripts-useful-4-6-scripts-collection.264161/#post-1777407
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namespace UnityEngine.UI.Extensions
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{
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[RequireComponent(typeof(Text), typeof(RectTransform))]
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[AddComponentMenu("UI/Effects/Extensions/Curved Text")]
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public class CurvedText : BaseMeshEffect
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{
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[SerializeField]
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private AnimationCurve _curveForText = AnimationCurve.Linear(0, 0, 1, 10);
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public AnimationCurve CurveForText
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{
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get { return _curveForText; }
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set { _curveForText = value; graphic.SetVerticesDirty(); }
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}
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[SerializeField]
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private float _curveMultiplier = 1;
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public float CurveMultiplier
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{
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get { return _curveMultiplier; }
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set { _curveMultiplier = value; graphic.SetVerticesDirty(); }
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}
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private RectTransform rectTrans;
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#if UNITY_EDITOR
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protected override void OnValidate()
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{
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base.OnValidate();
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if (_curveForText[0].time != 0)
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{
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var tmpRect = _curveForText[0];
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tmpRect.time = 0;
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_curveForText.MoveKey(0, tmpRect);
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}
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if (rectTrans == null)
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rectTrans = GetComponent<RectTransform>();
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if (_curveForText[_curveForText.length - 1].time != rectTrans.rect.width)
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OnRectTransformDimensionsChange();
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}
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#endif
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protected override void Awake()
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{
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base.Awake();
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rectTrans = GetComponent<RectTransform>();
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OnRectTransformDimensionsChange();
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}
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protected override void OnEnable()
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{
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base.OnEnable();
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rectTrans = GetComponent<RectTransform>();
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OnRectTransformDimensionsChange();
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}
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public override void ModifyMesh(VertexHelper vh)
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{
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int count = vh.currentVertCount;
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if (!IsActive() || count == 0)
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{
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return;
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}
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for (int index = 0; index < vh.currentVertCount; index++)
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{
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UIVertex uiVertex = new UIVertex();
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vh.PopulateUIVertex(ref uiVertex, index);
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uiVertex.position.y += _curveForText.Evaluate(rectTrans.rect.width * rectTrans.pivot.x + uiVertex.position.x) * _curveMultiplier;
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vh.SetUIVertex(uiVertex, index);
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}
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}
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protected override void OnRectTransformDimensionsChange()
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{
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if (rectTrans)
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{
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Keyframe tmpRect = _curveForText[_curveForText.length - 1];
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tmpRect.time = rectTrans.rect.width;
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_curveForText.MoveKey(_curveForText.length - 1, tmpRect);
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}
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}
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}
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}
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