Function CmdSetGroupLivery

src/group_cmd.cpp:687–711

* Set the livery for a vehicle group. * @param flags Command flags. * @param group_id Group ID. * @param primary Set primary instead of secondary colour * @param colour Colour. */

 * @param colour Colour.
 */
CommandCost CmdSetGroupLivery(DoCommandFlags flags, GroupID group_id, bool primary, Colours colour)
{
	Group *g = Group::GetIfValid(group_id);

	if (g == nullptr || g->owner != _current_company) return CMD_ERROR;

	if (colour >= COLOUR_END && colour != INVALID_COLOUR) return CMD_ERROR;

	if (flags.Test(DoCommandFlag::Execute)) {
		if (primary) {
			g->livery.in_use.Set(Livery::Flag::Primary, colour != INVALID_COLOUR);
			if (colour == INVALID_COLOUR) colour = GetParentLivery(g)->colour1;
			g->livery.colour1 = colour;
		} else {
			g->livery.in_use.Set(Livery::Flag::Secondary, colour != INVALID_COLOUR);
			if (colour == INVALID_COLOUR) colour = GetParentLivery(g)->colour2;
			g->livery.colour2 = colour;
		}

		PropagateChildLivery(g, true);
		MarkWholeScreenDirty();
	}

	return CommandCost();
}

/**
 * Set group flag for a group and its sub-groups.