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authororwell96 <orwell@bleipb.de>2017-11-22 20:46:36 +0100
committerorwell96 <orwell@bleipb.de>2017-11-22 20:46:36 +0100
commit409e2125c9d6ee72090c92dc94c54d0560a80c5d (patch)
treed5873a5d2ea84dc1697f6565446c3b24cc8e9d1b /advtrains_train_steam/locale
parentce73643b107bb9cd7390f42457634d311b70c761 (diff)
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Make trackplacer align rails by any tracks, not just by tracks with the same nnpref
This finally fixes the need to rotate atc rails and bumpers. Also prefers rotation that is closer to the player's look dir (placed bumpers will face the player)
Diffstat (limited to 'advtrains_train_steam/locale')
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/*
Minetest
Copyright (C) 2017 nerzhul, Loic Blot <loic.blot@unix-experience.fr>

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/

#include "modchannels.h"
#include <algorithm>
#include <cassert>
#include "util/basic_macros.h"

bool ModChannel::registerConsumer(session_t peer_id)
{

	// ignore if peer_id already joined
	if (CONTAINS(m_client_consumers, peer_id))
		return false;

	m_client_consumers.push_back(peer_id);
	return true;
}

bool ModChannel::removeConsumer(session_t peer_id)
{
	bool found = false;
	auto peer_removal_fct = [peer_id, &found](u16 p) {
		if (p == peer_id)
			found = true;

		return p == peer_id;
	};

	m_client_consumers.erase(
			std::remove_if(m_client_consumers.begin(),
					m_client_consumers.end(), peer_removal_fct),
			m_client_consumers.end());

	return found;
}

bool ModChannel::canWrite() const
{
	return m_state == MODCHANNEL_STATE_READ_WRITE;
}

void ModChannel::setState(ModChannelState state)
{
	assert(state != MODCHANNEL_STATE_INIT);

	m_state = state;
}

bool ModChannelMgr::channelRegistered(const std::string &channel) const
{
	return m_registered_channels.find(channel) != m_registered_channels.end();
}

ModChannel *ModChannelMgr::getModChannel(const std::string &channel)
{
	if (!channelRegistered(channel))
		return nullptr;

	return m_registered_channels[channel].get();
}

bool ModChannelMgr::canWriteOnChannel(const std::string &channel) const
{
	const auto channel_it = m_registered_channels.find(channel);
	if (channel_it == m_registered_channels.end()) {
		return false;
	}

	return channel_it->second->canWrite();
}

void ModChannelMgr::registerChannel(const std::string &channel)
{
	m_registered_channels[channel] =
			std::unique_ptr<ModChannel>(new ModChannel(channel));
}

bool ModChannelMgr::setChannelState(const std::string &channel, ModChannelState state)
{
	if (!channelRegistered(channel))
		return false;

	auto channel_it = m_registered_channels.find(channel);
	channel_it->second->setState(state);

	return true;
}

bool ModChannelMgr::removeChannel(const std::string &channel)
{
	if (!channelRegistered(channel))
		return false;

	m_registered_channels.erase(channel);
	return true;
}

bool ModChannelMgr::joinChannel(const std::string &channel, session_t peer_id)
{
	if (!channelRegistered(channel))
		registerChannel(channel);

	return m_registered_channels[channel]->registerConsumer(peer_id);
}

bool ModChannelMgr::leaveChannel(const std::string &channel, session_t peer_id)
{
	if (!channelRegistered(channel))
		return false;

	// Remove consumer from channel
	bool consumerRemoved = m_registered_channels[channel]->removeConsumer(peer_id);

	// If channel is empty, remove it
	if (m_registered_channels[channel]->getChannelPeers().empty()) {
		removeChannel(channel);
	}
	return consumerRemoved;
}

void ModChannelMgr::leaveAllChannels(session_t peer_id)
{
	for (auto &channel_it : m_registered_channels)
		channel_it.second->removeConsumer(peer_id);
}

static std::vector<u16> empty_channel_list;
const std::vector<u16> &ModChannelMgr::getChannelPeers(const std::string &channel) const
{
	const auto &channel_it = m_registered_channels.find(channel);
	if (channel_it == m_registered_channels.end())
		return empty_channel_list;

	return channel_it->second->getChannelPeers();
}