80 lines
1.9 KiB
C#
80 lines
1.9 KiB
C#
using StgSharp.Math;
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using System;
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using System.Runtime.InteropServices;
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namespace StgSharp.Geometries
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{
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public unsafe class Point
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{
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internal vec3d* positionPtr;
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internal readonly bool isVertex;
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internal Point(vec3d* ptr)
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{
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positionPtr = ptr;
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}
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public Point()
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{
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IntPtr ptr = Marshal.AllocHGlobal(sizeof(vec3d));
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positionPtr = (vec3d*)ptr.ToPointer();
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}
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public vec3d Position
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{
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get { return *positionPtr; }
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set { *positionPtr = value; }
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}
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public vec3d* PositionPtr
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{
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get { return positionPtr; }
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set { positionPtr = value; }
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}
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public float X
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{
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get { return (*this.positionPtr).X; }
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set { (*this.positionPtr).X = value; }
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}
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public float Y
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{
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get { return (*this.positionPtr).Y; }
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set { (*this.positionPtr).Y = value; }
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}
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public float Z
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{
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get { return (*this.positionPtr).Z; }
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set { (*this.positionPtr).Z = value; }
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}
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public bool IsVertex => isVertex;
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/// <summary>
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/// Update the coordinate of the point. If this is a moving point,
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/// (Points on sides or surface if other geometry items)
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/// please do not define any motion here, codes will be ignored by program
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/// </summary>
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/// <param name="tick">Time passes since the program begin, counted by frames</param>
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public virtual void Update(uint tick) { }
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public bool IsInGeometry(IPlainGeometry geo)
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{
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throw new NotImplementedException();
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}
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public bool IsOnPlain(IPlainGeometry geo)
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{
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return (*this.positionPtr) * geo.GetPlain().plainParameter == 1;
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}
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}
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}
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