Function RemoveFromConsist

src/train_cmd.cpp:907–917

* Remove the given wagon from its consist. * @param part the part of the train to remove. * @param chain whether to remove the whole chain. */

 * @param chain whether to remove the whole chain.
 */
static void RemoveFromConsist(Train *part, bool chain = false)
{
	Train *tail = chain ? part->Last() : part->GetLastEnginePart();

	/* Unlink at the front, but make it point to the next
	 * vehicle after the to be remove part. */
	if (part->Previous() != nullptr) part->Previous()->SetNext(tail->Next());

	/* Unlink at the back */
	tail->SetNext(nullptr);
}

/**
 * Inserts a chain into the train at dst.