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130 lines
3.4 KiB
C#
130 lines
3.4 KiB
C#
/******************************************************************************/
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/*
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Project - MudBun
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Publisher - Long Bunny Labs
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http://LongBunnyLabs.com
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Author - Ming-Lun "Allen" Chou
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http://AllenChou.net
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*/
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/******************************************************************************/
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using System.Collections.Generic;
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using Unity.Collections;
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using UnityEngine;
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#if MUDBUN_BURST
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using Unity.Burst;
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using Unity.Mathematics;
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using AOT;
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#endif
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namespace MudBun
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{
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#if MUDBUN_BURST
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[BurstCompile]
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#endif
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public class MudTorus : MudSolid
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{
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[SerializeField] private float m_elongation = 0.0f;
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public float Elongation { get => m_elongation; set { m_elongation = value; MarkDirty(); } }
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public float Radius
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{
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get => Mathf.Abs(0.25f * transform.localScale.y);
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set
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{
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transform.localScale = new Vector3(transform.localScale.x, 4.0f * value, transform.localScale.z);
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MarkDirty();
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}
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}
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public override Aabb RawBoundsRs
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{
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get
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{
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Vector3 posRs = PointRs(transform.position);
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Vector3 size = VectorUtil.Abs(transform.localScale);
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Vector3 r = new Vector3(0.5f * size.x, m_elongation, 0.5f * size.z) + Radius * Vector3.one;
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Aabb bounds = new Aabb(-r, r);
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bounds.Rotate(RotationRs(transform.rotation));
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Vector3 round = Radius * Vector3.one;
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bounds.Min += posRs;
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bounds.Max += posRs;
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return bounds;
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}
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}
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public override void SanitizeParameters()
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{
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base.SanitizeParameters();
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Validate.NonNegative(ref m_elongation);
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}
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public override int FillComputeData(NativeArray<SdfBrush> aBrush, int iStart, List<Transform> aBone)
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{
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SdfBrush brush = SdfBrush.New();
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brush.Type = (int) SdfBrush.TypeEnum.Torus;
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brush.Radius = Radius;
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brush.Data0.x = m_elongation;
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if (aBone != null)
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{
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brush.BoneIndex = aBone.Count;
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aBone.Add(gameObject.transform);
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}
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aBrush[iStart] = brush;
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return 1;
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}
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#if MUDBUN_BURST
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[BurstCompile]
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[MonoPInvokeCallback(typeof(Sdf.SdfBrushEvalFunc))]
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[RegisterSdfBrushEvalFunc(SdfBrush.TypeEnum.Torus)]
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public static unsafe float EvaluateSdf(float res, ref float3 p, in float3 pRel, SdfBrush* aBrush, int iBrush)
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{
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float3 pRelCopy = pRel;
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float3 h = math.abs(0.5f * aBrush[iBrush].Size);
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float elongation = aBrush[iBrush].Data0.x;
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pRelCopy.y -= math.clamp(pRelCopy.y, -elongation, elongation);
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float3 hTorus = new float3(h.x + 0.5f * aBrush[iBrush].Radius, h.y, h.z + 0.5f * aBrush[iBrush].Radius);
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float r = math.abs(0.25f * aBrush[iBrush].Size.y);
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return Sdf.Torus(pRelCopy, hTorus.x - hTorus.z, hTorus.z - r, r);
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}
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#endif
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public override void DrawSelectionGizmosRs()
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{
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base.DrawSelectionGizmosRs();
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GizmosUtil.DrawInvisibleTorus
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(
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PointRs(transform.position),
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0.25f * transform.localScale.y,
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transform.localScale.x,
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transform.localScale.z,
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RotationRs(transform.rotation)
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);
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}
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public override void DrawOutlineGizmosRs()
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{
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base.DrawOutlineGizmosRs();
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GizmosUtil.DrawWireTorus
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(
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PointRs(transform.position),
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0.25f * transform.localScale.y,
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transform.localScale.x,
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transform.localScale.z,
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RotationRs(transform.rotation)
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);
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}
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}
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}
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