void drop_from_all_slots(const entity_handle c, logic_step& step) {
const auto& container = c.get<components::container>();
for (const auto& s : container.slots) {
const auto items_uninvalidated = s.second.items_inside;
for (const auto item : items_uninvalidated) {
perform_transfer({ c.get_cosmos()[item], c.get_cosmos()[inventory_slot_id()] }, step);
}
}
}
bool driver_system::change_car_ownership(const entity_handle driver_entity, const entity_handle car_entity, const bool lost_ownership) {
auto& driver = driver_entity.get<components::driver>();
auto& cosmos = driver_entity.get_cosmos();
const auto& physics = cosmos.systems_temporary.get<physics_system>();
auto* const maybe_rotation_copying = driver_entity.find<components::rotation_copying>();
const bool has_physics = driver_entity.has<components::physics>();
auto* const maybe_movement = driver_entity.find<components::movement>();
auto& force_joint = driver_entity.get<components::force_joint>();
if (!lost_ownership) {
auto& car = car_entity.get<components::car>();
if (cosmos[car.current_driver].alive())
return false;
driver.owned_vehicle = car_entity;
car.current_driver = driver_entity;
force_joint.chased_entity = car.left_wheel_trigger;
driver_entity.get<components::processing>().enable_in(processing_subjects::WITH_FORCE_JOINT);
if (maybe_movement) {
maybe_movement->reset_movement_flags();
maybe_movement->enable_braking_damping = false;
maybe_movement->enable_animation = false;
}
if (maybe_rotation_copying && has_physics) {
maybe_rotation_copying->stash();
maybe_rotation_copying->target = car.left_wheel_trigger;
maybe_rotation_copying->look_mode = components::rotation_copying::look_type::ROTATION;
}
if (has_physics) {
auto& physics = driver_entity.get<components::physics>();
physics.set_transform(car.left_wheel_trigger);
physics.set_velocity(vec2(0, 0));
resolve_density_of_associated_fixtures(driver_entity);
}
}
else {
auto& car = cosmos[driver.owned_vehicle].get<components::car>();
driver.owned_vehicle.unset();
car.current_driver.unset();
driver_entity.get<components::processing>().disable_in(processing_subjects::WITH_FORCE_JOINT);
if (maybe_movement) {
maybe_movement->reset_movement_flags();
maybe_movement->enable_braking_damping = true;
maybe_movement->enable_animation = true;
maybe_movement->moving_left = car.turning_left;
maybe_movement->moving_right = car.turning_right;
maybe_movement->moving_forward = car.accelerating;
maybe_movement->moving_backward = car.decelerating;
}
car.reset_movement_flags();
if (maybe_rotation_copying && has_physics) {
maybe_rotation_copying->unstash();
}
if (has_physics) {
resolve_density_of_associated_fixtures(driver_entity);
}
}
// networking the message, since it was successful
return true;
}
bool driver_system::release_car_ownership(const entity_handle driver) {
return change_car_ownership(driver, driver.get_cosmos()[entity_id()], true);
}
