121 lines
3.9 KiB
C#
121 lines
3.9 KiB
C#
using StgSharp.Math;
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using System;
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using System.Collections.Generic;
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using System.Text;
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namespace StgSharp.Geometries
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{
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public class Rectangle : IGeometry
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{
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internal Point _basePoint;
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internal Point _center;
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internal Point _centerToCorner1;
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internal Point _centerToCorner2;
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internal RenderMode _renderMode;
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internal readonly uint bornTick;
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public override sealed Point BasePoint => _basePoint;
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public override sealed Point RefPoint=>_center;
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public override sealed Point RefVec01 => _centerToCorner1;
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public override sealed Point RefVec02 => _centerToCorner2;
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public override RenderMode renderMode => _renderMode;
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public Rectangle(uint bornTime) : base(bornTime)
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{
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bornTick = bornTime;
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}
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public Rectangle(Counter<uint> tickCounter) : base(tickCounter)
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{
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bornTick = tickCounter._value;
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}
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internal override sealed void OnRender(uint tick)
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{
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tick-=bornTick;
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CalcVec01(tick);
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switch (renderMode)
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{
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case RenderMode.BasePoint:
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CalcVec02(_basePoint._position,tick);
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CalcVec03(_basePoint._position,tick);
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break;
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case RenderMode.RefPoint:
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CalcVec02(_center._position, tick);
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CalcVec03(_center._position, tick);
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break;
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default:
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break;
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}
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}
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public override sealed float SetArrayX()
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{
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throw new NotImplementedException();
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}
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public override sealed float SetArrayY()
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{
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throw new NotImplementedException();
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}
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internal override void CalcVec01(uint tick)
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{
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_center._position = _basePoint._position + MovCenter(tick);
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}
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/// <summary>
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/// 计算长方形第一条对角线的一半的矢量表示
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/// </summary>
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/// <param name="vec">作为参考的矢量，根据计算模式可以分为参考原点
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/// 和参考中心点两种</param>
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/// <param name="tick">当前游戏刻</param>
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internal override void CalcVec02(vec3d vec, uint tick)
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{
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_centerToCorner1._position = vec + UpdateCTC1(tick);
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}
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/// <summary>
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/// 计算长方形第二条对角线一半的矢量表示
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/// </summary>
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/// <param name="vec">作为参考的矢量，根据计算模式可以分为参考原点
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/// 和参考中心点两种</param>
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/// <param name="tick">当前游戏刻</param>
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/// <exception cref="ArgumentException">计算出的第二条对角线长与第一条不相等</exception>
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internal override void CalcVec03(vec3d vec, uint tick)
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{
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_centerToCorner2._position = vec + UpdateCTC2(tick);
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if (_centerToCorner1._position.GetLength()
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== _centerToCorner2._position.GetLength())
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{
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throw new ArgumentException("Cannot form a triangle, " +
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"two crossing lines are not equal!");
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}
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}
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/// <summary>
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/// 计算中心点相对于参考原点的位移
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/// </summary>
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/// <param name="tick">当前游戏刻</param>
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/// <returns></returns>
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public virtual vec3d MovCenter(uint tick)=>default(vec3d);
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/// <summary>
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/// 计算一个顶点相对于
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/// </summary>
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/// <param name="tick"></param>
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/// <returns></returns>
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public virtual vec3d UpdateCTC1(uint tick) => default(vec3d);
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public virtual vec3d UpdateCTC2(uint tick) => default(vec3d);
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public override Line[] GetAllSides()
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{
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throw new NotImplementedException();
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}
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}
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}
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