//----------------------------------------------------------------------------
void SimplePendulumFriction::CreateScene ()
{
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
mScene->AttachChild(CreateFloor());
mScene->AttachChild(CreatePendulum());
}
//----------------------------------------------------------------------------
void FoucaultPendulum::CreateScene ()
{
mScene = new0 Node();
mScene->AttachChild(CreateFloor());
mScene->AttachChild(CreatePath());
mScene->AttachChild(CreatePendulum());
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
}
//----------------------------------------------------------------------------
void BouncingBall::CreateScene ()
{
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
CreateBall();
CreateFloor();
CreateWall();
mScene->AttachChild(mFloor);
mScene->AttachChild(mWall);
// The floor reflects an image of the ball.
mPREffect = new0 PlanarReflectionEffect(1);
mPREffect->SetPlane(0, mFloor);
mPREffect->SetReflectance(0, 0.2f);
}
//----------------------------------------------------------------------------
void BouncingSpheres::CreateScene ()
{
CreateBalls();
CreateFloor();
CreateBackWall();
CreateSideWall1();
CreateSideWall2();
// ** layout of scene graph **
// scene
// room
// backwall
// floor
// sidewall1
// sidewall2
// balls
mScene = new0 Node();
mWireState = new0 WireState();
mRenderer->SetOverrideWireState(mWireState);
Node* room = new0 Node();
room->AttachChild(mFloor);
room->AttachChild(mSideWall1);
room->AttachChild(mSideWall2);
room->AttachChild(mBackWall);
mScene->AttachChild(room);
Node* ballRoot = new0 Node();
int i;
for (i = 0; i < NUM_BALLS; ++i)
{
ballRoot->AttachChild(mBallNodes[i]);
}
mScene->AttachChild(ballRoot);
// The balls are constrained to bounce around in a rectangular solid
// region. The six defining planes are defined to be immovable rigid
// bodies. The boundaries are parallel to coordinate axes and pass
// through the points indicated by the value other than +-100. That is,
// the back wall is at x = 1, the left wall is at y = 2, the floor is at
// z = 1, the right wall is at y = 15, the ceiling is at z = 17, and the
// front wall is at x = 9. The ceiling and front wall are invisible
// objects (not rendered), but you will see balls bouncing against it
// and reflecting away from it towards the back wall.
mBoundaryLocations[0] = Vector3f(1.0f, -100.0f, -100.0f);
mBoundaryNormals[0] = Vector3f(1.0f, 0.0f, 0.0f);
mBoundaryLocations[1] = Vector3f(-100.0f, 2.0f, -100.0f);
mBoundaryNormals[1] = Vector3f(0.0f, 1.0f, 0.0f);
mBoundaryLocations[2] = Vector3f(-100.0f, -100.0f, 1.0f);
mBoundaryNormals[2] = Vector3f(0.0f, 0.0f, 1.0f);
mBoundaryLocations[3] = Vector3f(100.0f, 15.0f, 100.0f);
mBoundaryNormals[3] = Vector3f(0.0f, -1.0f, 0.0f);
mBoundaryLocations[4] = Vector3f(100.0f, 100.0f, 17.0f);
mBoundaryNormals[4] = Vector3f(0.0f, 0.0f, -1.0f);
mBoundaryLocations[5] = Vector3f(8.0f, 100.0f, 100.0f);
mBoundaryNormals[5] = Vector3f(-1.0f, 0.0f, 0.0f);
for (i = 0; i < 6; ++i)
{
mBoundaries[i].SetMass(0.0f);
mBoundaries[i].SetPosition(mBoundaryLocations[i]);
}
}
