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demo cleanup part 6, basic demo more self contained

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This commit is contained in:
ejcoumans
2007-12-07 19:56:42 +00:00
parent a4bc26544c
commit 68af58c09d
1 changed files with 43 additions and 9 deletions
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52
Demos/BasicDemo/BasicDemo.cpp
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@@ -110,18 +110,47 @@ void BasicDemo::initPhysics()
btTransform groundTransform;
groundTransform.setIdentity();
groundTransform.setOrigin(btVector3(0,-56,0));
localCreateRigidBody(btScalar(0.),groundTransform,groundShape);
//create a few dynamic sphere rigidbodies (re-using the same sphere shape)
//btCollisionShape* colShape = new btBoxShape(btVector3(1,1,1));
btCollisionShape* colShape = new btSphereShape(btScalar(1.));
m_collisionShapes.push_back(colShape);
//We can also use DemoApplication::localCreateRigidBody, but for clarity it is provided here:
{
btScalar mass(0.);
//rigidbody is dynamic if and only if mass is non zero, otherwise static
bool isDynamic = (mass != 0.f);
btVector3 localInertia(0,0,0);
if (isDynamic)
groundShape->calculateLocalInertia(mass,localInertia);
//using motionstate is recommended, it provides interpolation capabilities, and only synchronizes 'active' objects
btDefaultMotionState* myMotionState = new btDefaultMotionState(groundTransform);
btRigidBody* body = new btRigidBody(mass,myMotionState,groundShape,localInertia);
//add the body to the dynamics world
m_dynamicsWorld->addRigidBody(body);
}
/// Create Dynamic Objects
btTransform startTransform;
startTransform.setIdentity();
{
//create a few dynamic rigidbodies
// Re-using the same collision is better for memory usage and performance
//btCollisionShape* colShape = new btBoxShape(btVector3(1,1,1));
btCollisionShape* colShape = new btSphereShape(btScalar(1.));
m_collisionShapes.push_back(colShape);
/// Create Dynamic Objects
btTransform startTransform;
startTransform.setIdentity();
btScalar mass(1.f);
//rigidbody is dynamic if and only if mass is non zero, otherwise static
bool isDynamic = (mass != 0.f);
btVector3 localInertia(0,0,0);
if (isDynamic)
colShape->calculateLocalInertia(mass,localInertia);
float start_x = START_POS_X - ARRAY_SIZE_X/2;
float start_y = START_POS_Y;
@@ -138,7 +167,12 @@ void BasicDemo::initPhysics()
2.0*k + start_y,
2.0*j + start_z));
localCreateRigidBody(1, startTransform,colShape);
//using motionstate is recommended, it provides interpolation capabilities, and only synchronizes 'active' objects
btDefaultMotionState* myMotionState = new btDefaultMotionState(startTransform);
btRigidBody* body = new btRigidBody(mass,myMotionState,colShape,localInertia);
m_dynamicsWorld->addRigidBody(body);
}
}
}