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cosmonaut 2022-06-23 17:06:38 -07:00
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Silkworm2 - C# bindings for the Silkworm2 cloth physics library
Copyright (c) 2022 Evan Hemsley
This software is provided 'as-is', without any express or implied warranty.
In no event will the authors be held liable for any damages arising from
the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software in a
product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
Evan "cosmonaut" Hemsley <evan@moonside.games>

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This is Silkworm2CS, a C# interop library for the [Silkworm2](https://gitea.moonside.games/MoonsideGames/Silkworm2) cloth physics library.
License
-------
Silkworm2 and Silkworm2CS are released under the zlib license. See LICENSE for details.
About Silkworm
----------------
For more information about Silkworm2, take a look at the Silkworm repository.

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/* Silkworm2CS - C# bindings for the Silkworm2 cloth physics library
*
* Copyright (c) 2022 Evan Hemsley
*
* This software is provided 'as-is', without any express or implied warranty.
* In no event will the authors be held liable for any damages arising from
* the use of this software.
*
* Permission is granted to anyone to use this software for any purpose,
* including commercial applications, and to alter it and redistribute it
* freely, subject to the following restrictions:
*
* 1. The origin of this software must not be misrepresented; you must not
* claim that you wrote the original software. If you use this software in a
* product, an acknowledgment in the product documentation would be
* appreciated but is not required.
*
* 2. Altered source versions must be plainly marked as such, and must not be
* misrepresented as being the original software.
*
* 3. This notice may not be removed or altered from any source distribution.
*
* Evan "cosmonaut" Hemsley <evan@moonside.games>
*
*/
using System;
using System.Runtime.InteropServices;
namespace Silkworm2CS
{
public static class Silkworm2
{
private const string nativeLibName = "Silkworm2";
public const uint SILKWORM2_MAJOR_VERSION = 0;
public const uint SILKWORM2_MINOR_VERSION = 1;
public const uint SILKWORM2_PATCH_VERSION = 0;
[StructLayout(LayoutKind.Sequential)]
public struct NodeCreateInfo
{
int X;
int Y;
float Mass;
float Friction;
float Radius;
bool Pinned;
float PushFactor;
float WindFactor;
bool Destroyable;
};
[StructLayout(LayoutKind.Sequential)]
public struct ClothCreateInfo
{
int X;
int Y;
int HorizontalNodeCount;
int VerticalNodeCount;
float Mass;
float Friction;
float WindFactor;
float TearThreshold;
};
[StructLayout(LayoutKind.Sequential)]
public struct Vertex
{
float X;
float Y;
float Z;
float U;
float V;
}
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern void Silkworm_Init();
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern void Silkworm_Update(
float delta,
float windSpeedX,
float windSpeedY
);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern IntPtr Silkworm_CreateNode(NodeCreateInfo* nodeCreateInfo);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern void Silkworm_DestroyNode(IntPtr nodePtr);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public static extern IntPtr Silkworm_CreateLink(
IntPtr nodeA,
IntPtr nodeB,
float distance,
float tearThreshold
);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern IntPtr Silkworm_ClothCreate(ClothCreateInfo* clothCreateInfo);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_ClothNodePin(IntPtr clothPtr, uint i, uint j);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_ClothNodeUnpin(IntPtr clothPtr, uint i, uint j);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_ClothNodeDestroy(IntPtr clothPtr, uint i, uint j);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern int Silkworm_ClothFillTriangleBuffer(
IntPtr clothPtr,
IntPtr vertexBufferPtr,
float depth,
float leftUV,
float widthUV,
float topUV,
float heightUV
);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_ClothDestroy(IntPtr clothPtr);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_PinNodesInRadius(float x, float y, float radius);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_UnpinNodesInRadius(float x, float y, float radius);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_PushNodesInRadius(
float x,
float y,
float radius,
float xDirection,
float yDirection
);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_DestroyNodesInRadius(float x, float y, float radius);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern IntPtr Silkworm_FindClothInRadius(float x, float y, float radius);
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_PerformDestroys();
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_ClearAll();
[DllImport(nativeLibName, CallingConvention = CallingConvention.Cdecl)]
public unsafe static extern void Silkworm_Finish();
}
}

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<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netstandard2.0</TargetFramework>
<AllowUnsafeBlocks>true</AllowUnsafeBlocks>
</PropertyGroup>
</Project>