120 lines
4.1 KiB
C#
120 lines
4.1 KiB
C#
//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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// file="GeometryOperation.cs"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// Copyright (c) Nitload Space. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the “Software”), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and
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// this permission notice shall be included in all copies
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// or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED “AS IS”,
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// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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//-----------------------------------------------------------------------
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//-----------------------------------------------------------------------
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using StgSharp.Math;
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using StgSharp.Timing;
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using System;
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using System.Collections.Generic;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Text;
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namespace StgSharp.Geometries
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{
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[UnmanagedFunctionPointer( CallingConvention.Cdecl )]
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public delegate Vec3 GeometryMotionDelegate( TimeSpanProvider timeSource, out float rotation );
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public class GeometryMotion
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{
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private bool isIncrementMode;
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private bool sourceIsStatic;
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private GeometryMotionDelegate movement;
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private IntPtr handle;
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private TimeSpanProvider time;
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public unsafe GeometryMotion(
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bool isIncreament,
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TimeSpanProvider timeSource,
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GeometryMotionDelegate motionDelegate )
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{
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isIncrementMode = isIncreament;
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time = timeSource;
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if( motionDelegate == null )
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{
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handle = ( IntPtr )( delegate*<TimeSpanProvider, out float, Vec3> )&defaultMotion;
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movement = defaultMotion;
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} else if( motionDelegate.Method.IsStatic )
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{
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sourceIsStatic = true;
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handle = Marshal.GetFunctionPointerForDelegate( motionDelegate );
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movement = motionDelegate;
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} else
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{
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movement = motionDelegate;
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}
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//sourceIsStatic = false;
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}
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public bool IsIncrement
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{
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get => isIncrementMode;
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}
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public static GeometryMotion DefaultMotion
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{
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get => new GeometryMotion( true, null, null );
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}
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public unsafe void RunMotion( ref Vec3 coord, ref float rotation )
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{
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float rot;
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Vec3 vec;
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if( sourceIsStatic )
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{
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vec = ( ( delegate* unmanaged[Cdecl]<TimeSpanProvider, out float, Vec3> )handle )(
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time, out rot );
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} else
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{
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vec = movement( time, out rot );
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}
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if( isIncrementMode )
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{
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coord += vec;
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rotation += rot;
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} else
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{
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coord = vec;
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rotation = rot;
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}
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}
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private static Vec3 defaultMotion( TimeSpanProvider provider, out float rotation )
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{
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rotation = 0;
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return Vec3.Zero;
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}
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}//------------------------------- End of Class -------------------------------
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}
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