bool ED_rigidbody_constraint_add(Scene *scene, Object *ob, int type, ReportList *reports)
{
RigidBodyWorld *rbw = BKE_rigidbody_get_world(scene);
/* check that object doesn't already have a constraint */
if (ob->rigidbody_constraint) {
BKE_reportf(reports, RPT_INFO, "Object '%s' already has a Rigid Body Constraint", ob->id.name + 2);
return false;
}
/* create constraint group if it doesn't already exits */
if (rbw->constraints == NULL) {
rbw->constraints = BKE_group_add(G.main, "RigidBodyConstraints");
}
/* make rigidbody constraint settings */
ob->rigidbody_constraint = BKE_rigidbody_create_constraint(scene, ob, type);
ob->rigidbody_constraint->flag |= RBC_FLAG_NEEDS_VALIDATE;
/* add constraint to rigid body constraint group */
BKE_group_object_add(rbw->constraints, ob, scene, NULL);
DAG_id_tag_update(&ob->id, OB_RECALC_OB);
return true;
}
/* Updates and validates world, bodies and shapes.
* < rebuild: rebuild entire simulation
*/
static void rigidbody_update_simulation(Scene *scene, RigidBodyWorld *rbw, bool rebuild)
{
GroupObject *go;
/* update world */
if (rebuild)
BKE_rigidbody_validate_sim_world(scene, rbw, true);
rigidbody_update_sim_world(scene, rbw);
/* update objects */
for (go = rbw->group->gobject.first; go; go = go->next) {
Object *ob = go->ob;
if (ob && ob->type == OB_MESH) {
/* validate that we've got valid object set up here... */
RigidBodyOb *rbo = ob->rigidbody_object;
/* update transformation matrix of the object so we don't get a frame of lag for simple animations */
BKE_object_where_is_calc(scene, ob);
if (rbo == NULL) {
/* Since this object is included in the sim group but doesn't have
* rigid body settings (perhaps it was added manually), add!
* - assume object to be active? That is the default for newly added settings...
*/
ob->rigidbody_object = BKE_rigidbody_create_object(scene, ob, RBO_TYPE_ACTIVE);
rigidbody_validate_sim_object(rbw, ob, true);
rbo = ob->rigidbody_object;
}
else {
/* perform simulation data updates as tagged */
/* refresh object... */
if (rebuild) {
/* World has been rebuilt so rebuild object */
rigidbody_validate_sim_object(rbw, ob, true);
}
else if (rbo->flag & RBO_FLAG_NEEDS_VALIDATE) {
rigidbody_validate_sim_object(rbw, ob, false);
}
/* refresh shape... */
if (rbo->flag & RBO_FLAG_NEEDS_RESHAPE) {
/* mesh/shape data changed, so force shape refresh */
rigidbody_validate_sim_shape(ob, true);
/* now tell RB sim about it */
// XXX: we assume that this can only get applied for active/passive shapes that will be included as rigidbodies
RB_body_set_collision_shape(rbo->physics_object, rbo->physics_shape);
}
rbo->flag &= ~(RBO_FLAG_NEEDS_VALIDATE | RBO_FLAG_NEEDS_RESHAPE);
}
/* update simulation object... */
rigidbody_update_sim_ob(scene, rbw, ob, rbo);
}
}
/* update constraints */
if (rbw->constraints == NULL) /* no constraints, move on */
return;
for (go = rbw->constraints->gobject.first; go; go = go->next) {
Object *ob = go->ob;
if (ob) {
/* validate that we've got valid object set up here... */
RigidBodyCon *rbc = ob->rigidbody_constraint;
/* update transformation matrix of the object so we don't get a frame of lag for simple animations */
BKE_object_where_is_calc(scene, ob);
if (rbc == NULL) {
/* Since this object is included in the group but doesn't have
* constraint settings (perhaps it was added manually), add!
*/
ob->rigidbody_constraint = BKE_rigidbody_create_constraint(scene, ob, RBC_TYPE_FIXED);
rigidbody_validate_sim_constraint(rbw, ob, true);
rbc = ob->rigidbody_constraint;
}
else {
/* perform simulation data updates as tagged */
if (rebuild) {
/* World has been rebuilt so rebuild constraint */
rigidbody_validate_sim_constraint(rbw, ob, true);
}
else if (rbc->flag & RBC_FLAG_NEEDS_VALIDATE) {
rigidbody_validate_sim_constraint(rbw, ob, false);
}
rbc->flag &= ~RBC_FLAG_NEEDS_VALIDATE;
}
}
}
}
