91 lines
2.1 KiB
C#
91 lines
2.1 KiB
C#
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/// <summary>
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/// Credit - ryanslikesocool
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/// Sourced from - https://github.com/ryanslikesocool/Unity-Card-UI
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/// </summary>
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using System.Collections;
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using System.Collections.Generic;
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using UnityEngine;
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namespace UnityEngine.UI.Extensions
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{
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///The formula for a basic superellipse is
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///Mathf.Pow(Mathf.Abs(x / a), n) + Mathf.Pow(Mathf.Abs(y / b), n) = 1
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[ExecuteInEditMode]
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public class SuperellipsePoints : MonoBehaviour
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{
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public float xLimits = 1f;
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public float yLimits = 1f;
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[Range(1f, 96f)]
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public float superness = 4f;
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private float lastXLim;
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private float lastYLim;
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private float lastSuper;
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[Space]
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[Range(1, 32)]
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public int levelOfDetail = 4;
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private int lastLoD;
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[Space]
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public Material material;
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private List<Vector2> pointList = new List<Vector2>();
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void Start()
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{
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RecalculateSuperellipse();
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GetComponent<MeshRenderer>().material = material;
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lastXLim = xLimits;
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lastYLim = yLimits;
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lastSuper = superness;
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lastLoD = levelOfDetail;
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}
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void Update()
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{
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if (lastXLim != xLimits || lastYLim != yLimits || lastSuper != superness || lastLoD != levelOfDetail)
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{
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RecalculateSuperellipse();
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}
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lastXLim = xLimits;
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lastYLim = yLimits;
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lastSuper = superness;
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lastLoD = levelOfDetail;
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}
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void RecalculateSuperellipse()
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{
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pointList.Clear();
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float realLoD = levelOfDetail * 4;
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for (float i = 0; i < xLimits; i += 1 / realLoD)
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{
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float y = Superellipse(xLimits, yLimits, i, superness);
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Vector2 tempVecTwo = new Vector2(i, y);
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pointList.Add(tempVecTwo);
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}
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pointList.Add(new Vector2(xLimits, 0));
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pointList.Add(Vector2.zero);
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GetComponent<MeshCreator>().CreateMesh(pointList);
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}
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float Superellipse(float a, float b, float x, float n)
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{
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float alpha = Mathf.Pow((x / a), n);
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float beta = 1 - alpha;
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float y = Mathf.Pow(beta, 1 / n) * b;
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return y;
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}
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}
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}
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