public override void Start()
{
var ourPrimitive = GeometricPrimitive.Cube.New(GraphicsDevice, 1.0f);
var primitiveMeshDraw = ourPrimitive.ToMeshDraw();
var newMultiMesh = new PoorMansMultiMesh()
{
Mesh = new Mesh()
{
Draw = primitiveMeshDraw
},
Material = meshMaterial
};
var numInstances = 2048;
var random = new Random();
for (int i = 0; i < numInstances; ++i)
{
var randX = random.Next(-64, 64);
var randY = random.Next(-64, 64);
var randZ = random.Next(-64, 64);
var velX = random.NextDouble() * 4.0;
var velY = random.NextDouble() * 4.0;
var velZ = random.NextDouble() * 4.0;
var vel = new Vector3((float)velX, (float)velY, (float)velZ);
var rotVelX = random.NextDouble();
var rotVelY = random.NextDouble();
var rotVelZ = random.NextDouble();
var rotVel = new Vector3((float)rotVelX, (float)rotVelY, (float)rotVelZ);
var r = random.NextDouble();
var g = random.NextDouble();
var b = random.NextDouble();
var col = new Color4((float)r, (float)g, (float)b);
var newEntity = new Entity(new Vector3(randX, randY, randZ));
var newObjectInSpace = new SomeObjectInSpace()
{
Velocity = vel, RotVelocity = rotVel, Color = col
};
newEntity.Add(newObjectInSpace);
newMultiMesh.AddInstance(newObjectInSpace);
Entity.AddChild(newEntity);
}
Entity.Add(newMultiMesh);
multiMesh = newMultiMesh;
}
public bool RemoveInstance(SomeObjectInSpace someObject)
{
return(objects.Remove(someObject.Id));
}
public System.Guid AddInstance(SomeObjectInSpace someObject)
{
objects[someObject.Id] = someObject;
return(someObject.Id);
}