/// <summary>
/// The main entry point for the application.
/// </summary>
static void Main(string[] args)
{
using (Cloth game = new Cloth())
{
game.Run();
}
}
private void LoadPhysics()
{
int w = 15;
int h = 15;
Vector3 p = new Vector3(0, 20, 0);
// Create a Grid of Points
int vertices, indices;
ClothMesh clothMesh;
{
VertexGrid grid = VertexGrid.CreateGrid(w, h);
vertices = grid.Points.Length;
indices = grid.Indices.Length;
ClothMeshDescription clothMeshDesc = new ClothMeshDescription();
clothMeshDesc.AllocateVertices <Vector3>(vertices);
clothMeshDesc.AllocateTriangles <int>(indices / 3);
clothMeshDesc.VertexCount = vertices;
clothMeshDesc.TriangleCount = indices / 3;
clothMeshDesc.VerticesStream.SetData(grid.Points);
clothMeshDesc.TriangleStream.SetData(grid.Indices);
// We are using 32 bit integers, so make sure the 16 bit flag is removed.
// 32 bits are the default, so this isn't technically needed
clothMeshDesc.Flags &= ~MeshFlag.Indices16Bit;
clothMeshDesc.Flags = (MeshFlag)((int)clothMeshDesc.Flags | (int)ClothMeshFlag.Tearable);
// Write the cooked data to memory
MemoryStream memoryStream = new MemoryStream();
Cooking.InitializeCooking();
Cooking.CookClothMesh(clothMeshDesc, memoryStream);
Cooking.CloseCooking();
// Need to reset the position of the stream to the beginning
memoryStream.Position = 0;
clothMesh = _core.CreateClothMesh(memoryStream);
}
//
int v = vertices * 2;
int i = indices * 3;
ClothDescription clothDesc = new ClothDescription()
{
ClothMesh = clothMesh,
GlobalPose =
Matrix.CreateTranslation(-w / 2.0f, 0, -h / 2.0f) *
Matrix.CreateTranslation(p),
Flags = ClothFlag.Gravity | ClothFlag.Bending | ClothFlag.CollisionTwoway | ClothFlag.Visualization | ClothFlag.Tearable,
BendingStiffness = 0.1f
};
clothDesc.MeshData.AllocatePositions <Vector3>(v);
clothDesc.MeshData.AllocateIndices <int>(i);
clothDesc.MeshData.AllocateNormals <Vector3>(v);
clothDesc.MeshData.MaximumVertices = v;
clothDesc.MeshData.MaximumIndices = i;
clothDesc.MeshData.NumberOfVertices = vertices;
clothDesc.MeshData.NumberOfIndices = indices;
_cloth = _scene.CreateCloth(clothDesc);
//
// Four corner boxes to hold it in place
var positions = new[]
{
new Vector3(-w / 2.0f, 0, -h / 2.0f), // Left back
new Vector3(-w / 2.0f, 0, h / 2.0f), // Left front
new Vector3(w / 2.0f, 0, -h / 2.0f), // Right back
new Vector3(w / 2.0f, 0, h / 2.0f), // Right front
};
for (int x = 0; x < 4; x++)
{
ActorDescription actorDesc = new ActorDescription()
{
GlobalPose = Matrix.CreateTranslation(positions[x] + p),
Shapes = { new BoxShapeDescription(1.0f, 1.0f, 1.0f) }
};
Actor actor = _scene.CreateActor(actorDesc);
_cloth.AttachToShape(actor.Shapes.Single(), 0);
}
//
// Something to drop on it
{
ActorDescription actorDesc = new ActorDescription()
{
GlobalPose = Matrix.CreateTranslation(0, 100, 0),
Shapes = { new SphereShapeDescription(2.0f) },
BodyDescription = new BodyDescription(50.0f)
};
Actor actor = _scene.CreateActor(actorDesc);
}
}
