/* Create physics sim representation of object given RigidBody settings
* < rebuild: even if an instance already exists, replace it
*/
static void rigidbody_validate_sim_object(RigidBodyWorld *rbw, Object *ob, bool rebuild)
{
RigidBodyOb *rbo = (ob) ? ob->rigidbody_object : NULL;
float loc[3];
float rot[4];
/* sanity checks:
* - object doesn't have RigidBody info already: then why is it here?
*/
if (rbo == NULL)
return;
/* make sure collision shape exists */
/* FIXME we shouldn't always have to rebuild collision shapes when rebuilding objects, but it's needed for constraints to update correctly */
if (rbo->physics_shape == NULL || rebuild)
rigidbody_validate_sim_shape(ob, true);
if (rbo->physics_object && rebuild == false) {
RB_dworld_remove_body(rbw->physics_world, rbo->physics_object);
}
if (!rbo->physics_object || rebuild) {
/* remove rigid body if it already exists before creating a new one */
if (rbo->physics_object) {
RB_body_delete(rbo->physics_object);
}
mat4_to_loc_quat(loc, rot, ob->obmat);
rbo->physics_object = RB_body_new(rbo->physics_shape, loc, rot);
RB_body_set_friction(rbo->physics_object, rbo->friction);
RB_body_set_restitution(rbo->physics_object, rbo->restitution);
RB_body_set_damping(rbo->physics_object, rbo->lin_damping, rbo->ang_damping);
RB_body_set_sleep_thresh(rbo->physics_object, rbo->lin_sleep_thresh, rbo->ang_sleep_thresh);
RB_body_set_activation_state(rbo->physics_object, rbo->flag & RBO_FLAG_USE_DEACTIVATION);
if (rbo->type == RBO_TYPE_PASSIVE || rbo->flag & RBO_FLAG_START_DEACTIVATED)
RB_body_deactivate(rbo->physics_object);
RB_body_set_linear_factor(rbo->physics_object,
(ob->protectflag & OB_LOCK_LOCX) == 0,
(ob->protectflag & OB_LOCK_LOCY) == 0,
(ob->protectflag & OB_LOCK_LOCZ) == 0);
RB_body_set_angular_factor(rbo->physics_object,
(ob->protectflag & OB_LOCK_ROTX) == 0,
(ob->protectflag & OB_LOCK_ROTY) == 0,
(ob->protectflag & OB_LOCK_ROTZ) == 0);
RB_body_set_mass(rbo->physics_object, RBO_GET_MASS(rbo));
RB_body_set_kinematic_state(rbo->physics_object, rbo->flag & RBO_FLAG_KINEMATIC || rbo->flag & RBO_FLAG_DISABLED);
}
if (rbw && rbw->physics_world)
RB_dworld_add_body(rbw->physics_world, rbo->physics_object, rbo->col_groups);
}
static void rna_RigidBodyOb_mass_set(PointerRNA *ptr, float value)
{
RigidBodyOb *rbo = (RigidBodyOb *)ptr->data;
rbo->mass = value;
#ifdef WITH_BULLET
/* only active bodies need mass update */
if ((rbo->physics_object) && (rbo->type == RBO_TYPE_ACTIVE)) {
RB_body_set_mass(rbo->physics_object, RBO_GET_MASS(rbo));
}
#endif
}
static void rna_RigidBodyOb_kinematic_state_set(PointerRNA *ptr, int value)
{
RigidBodyOb *rbo = (RigidBodyOb *)ptr->data;
RB_FLAG_SET(rbo->flag, value, RBO_FLAG_KINEMATIC);
#ifdef WITH_BULLET
/* update kinematic state if necessary */
if (rbo->physics_object) {
RB_body_set_mass(rbo->physics_object, RBO_GET_MASS(rbo));
RB_body_set_kinematic_state(rbo->physics_object, value);
rbo->flag |= RBO_FLAG_NEEDS_VALIDATE;
}
#endif
}
static void rna_RigidBodyOb_disabled_set(PointerRNA *ptr, int value)
{
RigidBodyOb *rbo = (RigidBodyOb *)ptr->data;
RB_FLAG_SET(rbo->flag, !value, RBO_FLAG_DISABLED);
#ifdef WITH_BULLET
/* update kinematic state if necessary - only needed for active bodies */
if ((rbo->physics_object) && (rbo->type == RBO_TYPE_ACTIVE)) {
RB_body_set_mass(rbo->physics_object, RBO_GET_MASS(rbo));
RB_body_set_kinematic_state(rbo->physics_object, !value);
rbo->flag |= RBO_FLAG_NEEDS_VALIDATE;
}
#endif
}
static void rigidbody_update_simulation_post_step(RigidBodyWorld *rbw)
{
GroupObject *go;
for (go = rbw->group->gobject.first; go; go = go->next) {
Object *ob = go->ob;
if (ob) {
RigidBodyOb *rbo = ob->rigidbody_object;
/* reset kinematic state for transformed objects */
if (rbo && (ob->flag & SELECT) && (G.moving & G_TRANSFORM_OBJ)) {
RB_body_set_kinematic_state(rbo->physics_object, rbo->flag & RBO_FLAG_KINEMATIC || rbo->flag & RBO_FLAG_DISABLED);
RB_body_set_mass(rbo->physics_object, RBO_GET_MASS(rbo));
/* deactivate passive objects so they don't interfere with deactivation of active objects */
if (rbo->type == RBO_TYPE_PASSIVE)
RB_body_deactivate(rbo->physics_object);
}
}
}
}
