169 lines
7.1 KiB
C#
169 lines
7.1 KiB
C#
/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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using System;
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using System.Runtime.CompilerServices;
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using ScriptRuntime;
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namespace ScriptRuntime
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{
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/// <summary>
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/// 射线检测相关算法的集合
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/// </summary>
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public static class IntersectWorld// : Base
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{
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/// <summary>
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/// 构造一条从当前默认相机发出的射线
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/// </summary>
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/// <param name="screenPos">射线起点的位置，取值范围：[0,1]</param>
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/// <param name="outRay">返回值（构造出的射线）</param>
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static public void IntersectWorld_ComputeRay(ref Vector2 screenPos, out Ray outRay)
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{
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ICall_IntersectWorld_ComputeRay(ref screenPos,out outRay);
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}
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/// <summary>
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/// 射线检测指定的Actor
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/// </summary>
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/// <param name="act">要检测的Actor</param>
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/// <param name="ray">射线</param>
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/// <param name="layerid">参与检测的层</param>
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/// <param name="pos">射线打到Actor上的点的坐标</param>
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/// <returns>是否检测到Actor</returns>
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static public bool IntersectActor(Actor act, ref Ray ray, LayerID layerid, out Vector3 pos)
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{
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if (LayerID.Min <= layerid && layerid < LayerID.Max && act != null)
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{
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return ICall_IntersectWorld_IntersectActor(act, ref ray, LayerMark.LayerIDToUINTMark(layerid), out pos);
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}
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pos = Vector3.Zero;
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return false;
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}
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/// <summary>
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/// 获取射线与指定(网格)Actor的交点
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/// </summary>
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/// <param name="act">要检测的Actor</param>
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/// <param name="ray">要检测的射线</param>
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/// <param name="mark">Actor的过滤层(只有这个层的Actor参与射线检测)</param>
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/// <param name="pos">射线与Actor的焦点</param>
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/// <returns>射线与Actor是否有交点</returns>
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static public bool IntersectActor(Actor act, ref Ray ray, LayerMark mark, out Vector3 pos)
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{
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if (act != null)
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{
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return ICall_IntersectWorld_IntersectActor(act, ref ray, mark.MarkAsUINT, out pos);
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}
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pos = Vector3.Zero;
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return false;
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}
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/// <summary>
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/// 射线检测Actor
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/// </summary>
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/// <param name="ray">指定的射线</param>
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/// <param name="layerid">参与检测的层</param>
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/// <returns>射线检测到Actor（射线从起点发出，第一个检测到的Actor），若没有检测到任何Actor，返回NULL</returns>
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static public Actor IntersectWorld_Actor(ref Ray ray, LayerID layerid)
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{
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if (LayerID.Min <= layerid && layerid < LayerID.Max)
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{
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return ICall_IntersectWorld_Actor(ref ray, LayerMark.LayerIDToUINTMark(layerid));
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}
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return null;
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}
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/// <summary>
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/// 获取射线检测到场景里(网格)Actor的第一个点的坐标
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/// </summary>
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/// <param name="ray">指定的射线</param>
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/// <param name="layerid">参与检测的层</param>
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/// <param name="outPoint">返回值（检测到的第一个点的坐标）</param>
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static public void IntersectWorld_Point(ref Ray ray, LayerID layerid, out Vector3 outPoint)
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{
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if (LayerID.Min <= layerid && layerid < LayerID.Max)
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{
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ICall_IntersectWorld_Point(ref ray, LayerMark.LayerIDToUINTMark(layerid), out outPoint);
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}
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else
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{
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outPoint = Vector3.Zero;
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}
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}
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/// <summary>
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/// 获取射线打中的第一个(网格)Actor
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/// </summary>
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/// <param name="ray">指定的射线</param>
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/// <param name="mark">Actor的过滤层(只有这个层的Actor参与射线检测)</param>
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/// <returns></returns>
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static public Actor IntersectWorld_Actor(ref Ray ray, LayerMark mark)
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{
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return ICall_IntersectWorld_Actor(ref ray, mark.MarkAsUINT);
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}
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/// <summary>
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/// 获取射线打中的第一个(网格)Actor的交点
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/// </summary>
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/// <param name="ray">指定的射线</param>
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/// <param name="mark">Actor的过滤层(只有这个层的Actor参与射线检测)</param>
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/// <param name="outPoint">射线与第一个Actor的交点</param>
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static public void IntersectWorld_Point(ref Ray ray, LayerMark mark, out Vector3 outPoint)
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{
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ICall_IntersectWorld_Point(ref ray, mark.MarkAsUINT, out outPoint);
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}
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/// <summary>
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/// 获取射线打中的第一个网格上的三角形的三个点
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/// </summary>
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/// <param name="ray">指定的射线</param>
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/// <param name="mark">Actor的过滤层(只有这个层的Actor参与射线检测)</param>
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/// <param name="outPoint1">三角形的第一个点</param>
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/// <param name="outPoint2">三角形的第二个点</param>
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/// <param name="outPoint3">三角形的第三个点</param>
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static public void IntersectWorld_Triangle(ref Ray ray, LayerMark mark, out Vector3 outPoint1, out Vector3 outPoint2, out Vector3 outPoint3)
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{
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ICall_IntersectWorld_Triangle(ref ray, mark.MarkAsUINT, out outPoint1, out outPoint2, out outPoint3);
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}
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// - internal call declare
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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extern private static void ICall_IntersectWorld_ComputeRay(ref Vector2 screenPos, out Ray outRay);
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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extern private static bool ICall_IntersectWorld_IntersectActor(Actor act, ref Ray ray, uint selectMark, out Vector3 pos);
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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extern private static Actor ICall_IntersectWorld_Actor(ref Ray ray, uint selectMark);
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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extern private static void ICall_IntersectWorld_Point(ref Ray ray, uint selectMark, out Vector3 outFloat3);
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[MethodImplAttribute(MethodImplOptions.InternalCall)]
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extern private static void ICall_IntersectWorld_Triangle(ref Ray ray, uint selectMark, out Vector3 outPoint1, out Vector3 outPoint2, out Vector3 outPoint3);
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}
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}
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