void DemoApplication::mouseFunc(int button, int state, int x, int y)
{
if (state == 0)
{
m_mouseButtons |= 1<<button;
} else
{
m_mouseButtons = 0;
}
m_mouseOldX = x;
m_mouseOldY = y;
updateModifierKeys();
if ((m_modifierKeys& BT_ACTIVE_ALT) && (state==0))
{
return;
}
//printf("button %i, state %i, x=%i,y=%i\n",button,state,x,y);
//button 0, state 0 means left mouse down
btVector3 rayTo = getRayTo(x,y);
switch (button)
{
case 2:
{
if (state==0)
{
shootBox(rayTo);
}
break;
};
case 1:
{
if (state==0)
{
#if 0
//apply an impulse
if (m_dynamicsWorld)
{
btCollisionWorld::ClosestRayResultCallback rayCallback(m_cameraPosition,rayTo);
m_dynamicsWorld->rayTest(m_cameraPosition,rayTo,rayCallback);
if (rayCallback.hasHit())
{
btRigidBody* body = btRigidBody::upcast(rayCallback.m_collisionObject);
if (body)
{
body->setActivationState(ACTIVE_TAG);
btVector3 impulse = rayTo;
impulse.normalize();
float impulseStrength = 10.f;
impulse *= impulseStrength;
btVector3 relPos = rayCallback.m_hitPointWorld - body->getCenterOfMassPosition();
body->applyImpulse(impulse,relPos);
}
}
}
#endif
} else
{
}
break;
}
case 0:
{
if (state==0)
{
//add a point to point constraint for picking
if (m_dynamicsWorld)
{
btVector3 rayFrom;
if (m_ortho)
{
rayFrom = rayTo;
rayFrom.setZ(-100.f);
} else
{
rayFrom = m_cameraPosition;
}
btCollisionWorld::ClosestRayResultCallback rayCallback(rayFrom,rayTo);
m_dynamicsWorld->rayTest(rayFrom,rayTo,rayCallback);
if (rayCallback.hasHit())
{
btRigidBody* body = btRigidBody::upcast(rayCallback.m_collisionObject);
if (body)
{
//other exclusions?
if (!(body->isStaticObject() || body->isKinematicObject()))
{
pickedBody = body;
pickedBody->setActivationState(DISABLE_DEACTIVATION);
btVector3 pickPos = rayCallback.m_hitPointWorld;
printf("pickPos=%f,%f,%f\n",pickPos.getX(),pickPos.getY(),pickPos.getZ());
btVector3 localPivot = body->getCenterOfMassTransform().inverse() * pickPos;
if (use6Dof)
{
btTransform tr;
tr.setIdentity();
tr.setOrigin(localPivot);
btGeneric6DofConstraint* dof6 = new btGeneric6DofConstraint(*body, tr,false);
dof6->setLinearLowerLimit(btVector3(0,0,0));
dof6->setLinearUpperLimit(btVector3(0,0,0));
dof6->setAngularLowerLimit(btVector3(0,0,0));
dof6->setAngularUpperLimit(btVector3(0,0,0));
m_dynamicsWorld->addConstraint(dof6);
m_pickConstraint = dof6;
dof6->setParam(BT_CONSTRAINT_STOP_CFM,0.8,0);
dof6->setParam(BT_CONSTRAINT_STOP_CFM,0.8,1);
dof6->setParam(BT_CONSTRAINT_STOP_CFM,0.8,2);
dof6->setParam(BT_CONSTRAINT_STOP_CFM,0.8,3);
dof6->setParam(BT_CONSTRAINT_STOP_CFM,0.8,4);
dof6->setParam(BT_CONSTRAINT_STOP_CFM,0.8,5);
dof6->setParam(BT_CONSTRAINT_STOP_ERP,0.1,0);
dof6->setParam(BT_CONSTRAINT_STOP_ERP,0.1,1);
dof6->setParam(BT_CONSTRAINT_STOP_ERP,0.1,2);
dof6->setParam(BT_CONSTRAINT_STOP_ERP,0.1,3);
dof6->setParam(BT_CONSTRAINT_STOP_ERP,0.1,4);
dof6->setParam(BT_CONSTRAINT_STOP_ERP,0.1,5);
} else
{
btPoint2PointConstraint* p2p = new btPoint2PointConstraint(*body,localPivot);
m_dynamicsWorld->addConstraint(p2p);
m_pickConstraint = p2p;
p2p->m_setting.m_impulseClamp = mousePickClamping;
//very weak constraint for picking
p2p->m_setting.m_tau = 0.001f;
/*
p2p->setParam(BT_CONSTRAINT_CFM,0.8,0);
p2p->setParam(BT_CONSTRAINT_CFM,0.8,1);
p2p->setParam(BT_CONSTRAINT_CFM,0.8,2);
p2p->setParam(BT_CONSTRAINT_ERP,0.1,0);
p2p->setParam(BT_CONSTRAINT_ERP,0.1,1);
p2p->setParam(BT_CONSTRAINT_ERP,0.1,2);
*/
}
use6Dof = !use6Dof;
//save mouse position for dragging
gOldPickingPos = rayTo;
gHitPos = pickPos;
gOldPickingDist = (pickPos-rayFrom).length();
}
}
}
}
} else
{
if (m_pickConstraint && m_dynamicsWorld)
{
m_dynamicsWorld->removeConstraint(m_pickConstraint);
delete m_pickConstraint;
//printf("removed constraint %i",gPickingConstraintId);
m_pickConstraint = 0;
pickedBody->forceActivationState(ACTIVE_TAG);
pickedBody->setDeactivationTime( 0.f );
pickedBody = 0;
}
}
break;
}
default:
{
}
}
}
void BtApplication::mouseFunc(int button, int state, int x, int y)
{
if (state == 0)
{
m_mouseButtons |= 1<<button;
} else
{
m_mouseButtons = 0;
}
m_mouseOldX = x;
m_mouseOldY = y;
updateModifierKeys();
if ((m_modifierKeys& BT_ACTIVE_ALT) && (state==0))
{
return;
}
//printf("button %i, state %i, x=%i,y=%i\n",button,state,x,y);
//button 0, state 0 means left mouse down
btVector3 rayTo = getRayTo(x,y);
switch (button)
{
case 2:
{
if (state==0)
{
shootBox(rayTo);
}
break;
};
case 1:
{
if (state==0)
{
#if 0
//apply an impulse
if (m_dynamicsWorld)
{
btCollisionWorld::ClosestRayResultCallback rayCallback(m_cameraPosition,rayTo);
m_dynamicsWorld->rayTest(m_cameraPosition,rayTo,rayCallback);
if (rayCallback.hasHit())
{
btRigidBody* body = btRigidBody::upcast(rayCallback.m_collisionObject);
if (body)
{
body->setActivationState(ACTIVE_TAG);
btVector3 impulse = rayTo;
impulse.normalize();
float impulseStrength = 10.f;
impulse *= impulseStrength;
btVector3 relPos = rayCallback.m_hitPointWorld - body->getCenterOfMassPosition();
body->applyImpulse(impulse,relPos);
}
}
}
#endif
} else
{
}
break;
}
case 0:
{
if (state==0)
{
//add a point to point constraint for picking
if (m_dynamicsWorld)
{
btVector3 rayFrom;
if (m_ortho)
{
rayFrom = rayTo;
rayFrom.setZ(-100.f);
} else
{
rayFrom = m_cameraPosition;
}
btCollisionWorld::ClosestRayResultCallback rayCallback(rayFrom,rayTo);
m_dynamicsWorld->rayTest(rayFrom,rayTo,rayCallback);
if (rayCallback.hasHit())
{
btVector3 pickPos = rayCallback.m_hitPointWorld;
pickObject(pickPos, rayCallback.m_collisionObject);
gOldPickingPos = rayTo;
gHitPos = pickPos;
gOldPickingDist = (pickPos-rayFrom).length();
}
}
} else
{
removePickingConstraint();
}
break;
}
default:
{
}
}
}
