public void DrawCylinder(float topRadius, float bottomRadius, float halfHeight, int upAxis, ref IndexedMatrix matrix, ref IndexedMatrix view, ref IndexedMatrix projection, ref IndexedVector3 color)
{
IndexedVector3 scale = new IndexedVector3(topRadius, halfHeight, bottomRadius);
IndexedMatrix rotate = IndexedMatrix.Identity;
if (upAxis == 0)
{
rotate = IndexedMatrix.CreateRotationZ(MathUtil.SIMD_HALF_PI);
}
if (upAxis == 1)
{
rotate = IndexedMatrix.CreateRotationY(MathUtil.SIMD_HALF_PI);
}
else if (upAxis == 2)
{
rotate = IndexedMatrix.CreateRotationX(MathUtil.SIMD_HALF_PI);
}
IndexedMatrix copy = matrix;
copy._origin = IndexedVector3.Zero;
copy = copy * rotate;
copy._origin = matrix._origin;
ModelScalingData modelScalingData = new ModelScalingData(m_cylinderModel, scale, copy);
modelScalingData.color = color;
m_modelScalingData.Add(modelScalingData);
}
public override void InitializeDemo()
{
SetCameraDistance(30f);
//string filename = @"E:\users\man\bullet\xna-basic-output-1.txt";
//FileStream filestream = File.Open(filename, FileMode.Create, FileAccess.Write, FileShare.Read);
//BulletGlobals.g_streamWriter = new StreamWriter(filestream);
///collision configuration contains default setup for memory, collision setup
m_collisionConfiguration = new DefaultCollisionConfiguration();
///use the default collision dispatcher. For parallel processing you can use a diffent dispatcher (see Extras/BulletMultiThreaded)
m_dispatcher = new CollisionDispatcher(m_collisionConfiguration);
m_broadphase = new DbvtBroadphase();
IOverlappingPairCache pairCache = null;
//pairCache = new SortedOverlappingPairCache();
m_broadphase = new SimpleBroadphase(1000, pairCache);
///the default constraint solver. For parallel processing you can use a different solver (see Extras/BulletMultiThreaded)
SequentialImpulseConstraintSolver sol = new SequentialImpulseConstraintSolver();
m_constraintSolver = sol;
m_dynamicsWorld = new DiscreteDynamicsWorld(m_dispatcher, m_broadphase, m_constraintSolver, m_collisionConfiguration);
IndexedVector3 gravity = new IndexedVector3(0, -10, 0);
m_dynamicsWorld.SetGravity(ref gravity);
///create a few basic rigid bodies
IndexedVector3 halfExtents = new IndexedVector3(50, 50, 50);
//IndexedVector3 halfExtents = new IndexedVector3(10, 10, 10);
CollisionShape groundShape = new BoxShape(ref halfExtents);
//CollisionShape groundShape = new StaticPlaneShape(new IndexedVector3(0,1,0), 50);
m_collisionShapes.Add(groundShape);
IndexedMatrix groundTransform = IndexedMatrix.CreateTranslation(new IndexedVector3(0, -50, 0));
//IndexedMatrix groundTransform = IndexedMatrix.CreateTranslation(new IndexedVector3(0,-10,0));
float mass = 0f;
LocalCreateRigidBody(mass, ref groundTransform, groundShape);
{
int numBlocksTall = 10; //18; //How many 'stories' tall.
float blockWidth = 6f; //Total width/length of the tower.
float blockHeight = 2f;
//create a few dynamic rigidbodies
IndexedVector3 extents = new IndexedVector3(blockWidth / 3, blockHeight, blockWidth);
IndexedVector3 boxHalfExtents = extents * 0.5f;
CollisionShape colShape = new BoxShape(boxHalfExtents);
//btCollisionShape* colShape = new btSphereShape(btScalar(1.));
//CollisionShape colShape = new CylinderShape(new IndexedVector3(1f, 1, 1f));
//m_collisionShapes.Add(colShape);
/// Create Dynamic Objects
IndexedMatrix startTransform = IndexedMatrix.Identity;
mass = 1f;
//rigidbody is dynamic if and only if mass is non zero, otherwise static
bool isDynamic = mass != 0f;
IndexedVector3 localInertia = IndexedVector3.Zero;
if (isDynamic)
{
colShape.CalculateLocalInertia(mass, out localInertia);
}
//The default number of iterations is 10, which works fine, but this demo
//is all about stability (it's jenga!). Increase the iterations a bit.
//Even though it's using twice as many iterations, it will early-out
//before reaching the limit MOST of the time.
//It's still pretty playable at around 7-8 max iterations, though.
IndexedMatrix transform = IndexedMatrix.Identity;
for (int i = 0; i < numBlocksTall; i++)
{
if (i % 2 == 0)
{
for (int j = 0; j < 3; j++)
{
transform = IndexedMatrix.Identity;
IndexedVector3 position = new IndexedVector3(j * (blockWidth / 3) - blockWidth / 3,
blockHeight / 2 + i * (blockHeight),
0);
//position += boxHalfExtents;
transform._origin = position;
RigidBody rb = LocalCreateRigidBody(mass, transform, colShape);
rb.SetActivationState(ActivationState.ISLAND_SLEEPING);
}
}
else
{
transform = IndexedMatrix.CreateRotationY(MathUtil.SIMD_HALF_PI);
for (int j = 0; j < 3; j++)
{
IndexedVector3 position = new IndexedVector3(0,
blockHeight / 2 + (i) * (blockHeight),
j * (blockWidth / 3) - blockWidth / 3f);
transform._origin = position;
//position += boxHalfExtents;
transform._origin = position;
RigidBody rb = LocalCreateRigidBody(mass, transform, colShape);
rb.SetActivationState(ActivationState.ISLAND_SLEEPING);
}
}
}
//game.Camera.Position = new Vector3(0, 5, 15);
}
ClientResetScene();
}
