stgsharp/源代码/StgSharp/Geometries/Arc.cs

using StgSharp.Linear;
using StgSharp.Math;
using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Runtime.CompilerServices;
using System.Text;

namespace StgSharp.Geometries
{
    public class Arc : IPlainGeometry
    {
        internal Point _basePoint;
        internal Point _center;
        internal Point _beginPoint;
        internal Point _endPoint;
        internal RenderMode _renderMode;
        internal readonly uint bornTick;

        public Arc(uint bornTime) : base(bornTime)
        {
            bornTick = bornTime;
        }

        public Arc(Counter<uint> tickCounter) : base(tickCounter)
        {
            bornTick = tickCounter._value;
        }

        public override Point RefOrigin => _basePoint;

        public override Point RefPoint01 => _center;

        public override Point RefPoint02 => _beginPoint;

        public override Point RefPoint03 => _endPoint;

        public override RenderMode renderMode => _renderMode;

        public virtual vec3d MoveCenter(uint tick) => default;

        public virtual vec3d UpdateRadius(uint tick) => default;

        public virtual vec3d UpdateAngle(uint tick) => default;

        internal override void OnRender(uint tick)
        {
            tick-=bornTick;
            _center._position = _basePoint._position + MoveCenter(tick);
            switch (_renderMode)
            {
                case RenderMode.BasePoint:
                    _beginPoint._position = _basePoint._position + UpdateRadius(tick);
                    _endPoint._position = _basePoint._position + UpdateAngle(tick);
                    break;
                case RenderMode.RefPoint:
                    _beginPoint._position = _center._position + UpdateRadius(tick);
                    _endPoint._position = _center._position + UpdateAngle(tick);
                    break;
                default:
                    break;
            }
        }

        public override float SetArrayX()
        {
            throw new NotImplementedException();
        }
        
        public override float SetArrayY()
        {
            throw new NotImplementedException();
        }

        public override Line[] GetAllSides() => throw new NotImplementedException();

        public override Plain GetPlain()
        {
            return new Plain(this._center,this._beginPoint,this._endPoint);
        }
    }
}