X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibmarklin%2Ftrain.cpp;h=42d3e01e1f87b1675d9edd32fd7439533ced4af4;hb=010d8321e982d1684fcbff5bf6fc2bdec7cb7bae;hp=fed1438b02cf064610c21c793b4b156842fce36b;hpb=06c100aacb559fbbe7380e15981c4772092c269b;p=r2c2.git

diff --git a/source/libmarklin/train.cpp b/source/libmarklin/train.cpp
index fed1438..42d3e01 100644
--- a/source/libmarklin/train.cpp
+++ b/source/libmarklin/train.cpp
@@ -1,139 +1,412 @@
+/* $Id$
+
+This file is part of the MSP Märklin suite
+Copyright © 2006-2009 Mikkosoft Productions, Mikko Rasa
+Distributed under the GPL
+*/
+
+#include <cmath>
+#include <msp/strings/formatter.h>
+#include <msp/time/units.h>
+#include <msp/time/utils.h>
 #include "control.h"
+#include "except.h"
+#include "tracktype.h"
 #include "trafficmanager.h"
 #include "train.h"
 
-#include <iostream>
 using namespace std;
+using namespace Msp;
+
+#include <iostream>
 
 namespace Marklin {
 
 Train::Train(TrafficManager &tm, Locomotive &l):
 	trfc_mgr(tm),
 	loco(l),
-	target_speed(0)
+	target_speed(0),
+	status("Unplaced"),
+	travel_dist(0),
+	travel_speed(0),
+	pure_speed(false),
+	speed_scale(0.02),
+	speed_scale_weight(0),
+	cur_track(0)
 {
 	trfc_mgr.add_train(this);
-	trfc_mgr.get_control().signal_sensor_event.connect(sigc::mem_fun(this, &Train::sensor_event));
+
+	loco.signal_reverse_changed.connect(sigc::mem_fun(this, &Train::locomotive_reverse_changed));
+
+	const map<unsigned, Sensor *> &sensors = trfc_mgr.get_control().get_sensors();
+	for(map<unsigned, Sensor *>::const_iterator i=sensors.begin(); i!=sensors.end(); ++i)
+		i->second->signal_state_changed.connect(sigc::bind(sigc::mem_fun(this, &Train::sensor_event), i->second));
+
+	const map<unsigned, Turnout *> &turnouts = trfc_mgr.get_control().get_turnouts();
+	for(map<unsigned, Turnout *>::const_iterator i=turnouts.begin(); i!=turnouts.end(); ++i)
+	{
+		i->second->signal_route_changing.connect(sigc::bind(sigc::mem_fun(this, &Train::turnout_route_changing), i->second));
+		i->second->signal_route_changed.connect(sigc::bind(sigc::mem_fun(this, &Train::turnout_route_changed), i->second));
+	}
 }
 
 void Train::set_name(const string &n)
 {
-	name=n;
+	name = n;
 
 	signal_name_changed.emit(name);
 }
 
 void Train::set_speed(unsigned speed)
 {
-	target_speed=speed;
-	if(rsv_blocks.empty() && !reserve_more())
+	if(speed==target_speed)
 		return;
-	loco.set_speed(speed);
+	if(!target_speed && speed)
+		travel_speed = static_cast<int>(round(speed*speed_scale*87*3.6/5))*5;
+
+	target_speed = speed;
+	if(!target_speed)
+	{
+		// XXX We might roll onto a new sensor and get confused - should delay freeing blocks a bit
+		for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+			i->block->reserve(0);
+		rsv_blocks.clear();
+	}
+	else
+		reserve_more();
+
+	signal_target_speed_changed.emit(target_speed);
+
+	update_speed();
+	pure_speed = false;
+}
+
+void Train::set_reverse(bool rev)
+{
+	loco.set_reverse(rev);
 }
 
-void Train::place(Block *block, const Block::Endpoint *entry)
+void Train::place(Block *block, unsigned entry)
 {
-	for(BlockRefSeq::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end();)
+	for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end();)
 	{
 		i->block->reserve(0);
-		i=rsv_blocks.erase(i);
+		i = rsv_blocks.erase(i);
 	}
 
-	for(BlockRefSeq::iterator i=cur_blocks.begin(); i!=cur_blocks.end();)
+	for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end();)
 	{
 		i->block->reserve(0);
-		i=cur_blocks.erase(i);
+		i = cur_blocks.erase(i);
 	}
 
 	if(!block->reserve(this))
+	{
+		set_status("Unplaced");
 		return;
+	}
 
 	cur_blocks.push_back(BlockRef(block, entry));
+	set_position(block->get_endpoints()[entry]);
+
+	set_status("Stopped");
 }
 
 bool Train::free_block(Block *block)
 {
-	for(BlockRefSeq::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+	unsigned nsens = 0;
+	for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+	{
 		if(i->block==block)
 		{
+			if(nsens<1)
+				return false;
 			while(i!=rsv_blocks.end())
 			{
 				i->block->reserve(0);
-				i=rsv_blocks.erase(i);
+				i = rsv_blocks.erase(i);
 			}
+			update_speed();
 			return true;
 		}
+		else if(i->block->get_sensor_id())
+			++nsens;
+	}
 
 	return false;
 }
 
-void Train::sensor_event(unsigned addr, bool state)
+void Train::tick(const Time::TimeStamp &t, const Time::TimeDelta &dt)
 {
-	if(!loco.get_speed())
-		return;
+	if(try_reserve && t>try_reserve)
+	{
+		reserve_more();
+		update_speed();
+	}
+
+	if(cur_track)
+	{
+		unsigned route = 0;
+		if(cur_track->get_turnout_id())
+			route = trfc_mgr.get_control().get_turnout(cur_track->get_turnout_id()).get_route();
+
+		offset += speed_scale*loco.get_speed()*(dt/Time::sec);
+		if(offset>cur_track->get_type().get_route_length(route))
+		{
+			int out = cur_track->traverse(cur_track_ep, route);
+			if(out>=0)
+			{
+				Track *next = cur_track->get_link(out);
+				if(next)
+					cur_track_ep = next->get_endpoint_by_link(*cur_track);
+				cur_track = next;
+				offset = 0;
+			}
+			else
+				cur_track = 0;
+		}
+
+		if(cur_track)
+			pos = cur_track->get_point(cur_track_ep, route, offset);
+	}
+}
+
+void Train::save(list<DataFile::Statement> &st) const
+{
+	st.push_back((DataFile::Statement("name"), name));
+	st.push_back((DataFile::Statement("speed_scale"), speed_scale, speed_scale_weight));
+}
+
+void Train::locomotive_reverse_changed(bool)
+{
+	for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+		i->block->reserve(0);
+	rsv_blocks.clear();
+	cur_blocks.reverse();
+	for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
+		i->entry = i->block->traverse(i->entry);
+	reserve_more();
+	update_speed();
+}
+
+void Train::sensor_event(bool state, Sensor *sensor)
+{
+	unsigned addr = sensor->get_address();
 
 	if(state)
 	{
-		BlockRefSeq::iterator i;
+		list<BlockRef>::iterator i;
 		for(i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
 			if(i->block->get_sensor_id() && i->block->get_sensor_id()!=addr)
 				break;
-		cur_blocks.splice(cur_blocks.end(), rsv_blocks, rsv_blocks.begin(), i);
 
-		cout<<"Train advanced, "<<cur_blocks.size()<<" cur_blocks, "<<rsv_blocks.size()<<" rsv_blocks\n";
+		if(i!=rsv_blocks.begin())
+		{
+			float travel_time_secs = (Time::now()-last_entry_time)/Time::sec;
+			travel_speed = static_cast<int>(round(travel_dist/travel_time_secs*87*3.6/5))*5;
 
-		reserve_more();
-		if(rsv_blocks.empty())
-			loco.set_speed(0);
+			if(pure_speed)
+			{
+				float weight = loco.get_speed()*travel_dist;
+				if(weight)
+				{
+					weight *= weight;
+					float scale = travel_dist/travel_time_secs/loco.get_speed();
+					cout<<"Updating speed_scale: "<<speed_scale<<'x'<<speed_scale_weight<<" + "<<scale<<'x'<<weight<<'\n';
+					speed_scale = (speed_scale*speed_scale_weight+scale*weight)/(speed_scale_weight+weight);
+					speed_scale_weight += weight;
+					cout<<"  Result: "<<speed_scale<<'x'<<speed_scale_weight<<'\n';
+				}
+			}
+
+			travel_dist = 0;
+			float block_len;
+			for(list<BlockRef>::iterator j=rsv_blocks.begin(); j!=i; ++j)
+			{
+				j->block->traverse(j->entry, &block_len);
+				travel_dist += block_len;
+			}
+			last_entry_time = Time::now();
+			pure_speed = true;
+
+			cur_blocks.splice(cur_blocks.end(), rsv_blocks, rsv_blocks.begin(), i);
+		}
+
+		for(i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
+			if(i->block->get_sensor_id()==addr)
+				set_position(i->block->get_endpoints()[i->entry]);
+
+		if(target_speed)
+		{
+			reserve_more();
+			update_speed();
+		}
 	}
 	else
 	{
-		cout<<"Finding blocks to free\n";
-		BlockRefSeq::iterator i;
-		for(i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
+		for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
 			if(i->block->get_sensor_id()==addr)
+			{
+				++i;
+				for(list<BlockRef>::iterator j=cur_blocks.begin(); j!=i; ++j)
+					j->block->reserve(0);
+				cur_blocks.erase(cur_blocks.begin(), i);
 				break;
-		if(i!=cur_blocks.end())
+			}
+
+		if(target_speed)
+			reserve_more();
+	}
+}
+
+void Train::turnout_route_changing(unsigned, Turnout *turnout)
+{
+	unsigned tid = turnout->get_address();
+	for(list<BlockRef>::const_iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
+		if(i->block->get_turnout_id()==tid)
+			throw TurnoutBusy(this);
+	
+	unsigned nsens = 0;
+	for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+	{
+		if(i->block->get_turnout_id()==tid)
 		{
-			cout<<"found\n";
-			++i;
-			for(BlockRefSeq::iterator j=cur_blocks.begin(); j!=i; ++j)
-				j->block->reserve(0);
-			cur_blocks.erase(cur_blocks.begin(), i);
-			cout<<cur_blocks.size()<<" cur_blocks\n";
+			if(nsens<1)
+				throw TurnoutBusy(this);
+			break;
 		}
-
-		reserve_more();
+		else if(i->block->get_sensor_id())
+			++nsens;
 	}
 }
 
-bool Train::reserve_more()
+void Train::turnout_route_changed(unsigned, Turnout *turnout)
 {
-	BlockRef *last=0;
+	unsigned tid = turnout->get_address();
+	for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+		if(i->block->get_turnout_id()==tid)
+		{
+			while(i!=rsv_blocks.end())
+			{
+				i->block->reserve(0);
+				i = rsv_blocks.erase(i);
+			}
+			reserve_more();
+			update_speed();
+			return;
+		}
+}
+
+unsigned Train::reserve_more()
+{
+	BlockRef *last = 0;
 	if(!rsv_blocks.empty())
-		last=&rsv_blocks.back();
+		last = &rsv_blocks.back();
 	else if(!cur_blocks.empty())
-		last=&cur_blocks.back();
+		last = &cur_blocks.back();
 	if(!last)
-		return false;
+		return 0;
 
-	bool result=false;
-	unsigned size=rsv_blocks.size();
-	while(size<5)
+	unsigned nsens = 0;
+	for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+		if(i->block->get_sensor_id())
+			++nsens;
+
+	bool result = false;
+	while(nsens<2)
 	{
-		const Block::Endpoint *exit=last->block->traverse(last->entry);
-		if(exit && exit->link->reserve(this))
+		int exit = last->block->traverse(last->entry);
+		if(exit>=0) 
 		{
-			rsv_blocks.push_back(BlockRef(exit->link, exit->link->get_endpoint_by_link(last->block)));
-			last=&rsv_blocks.back();
-			++size;
-			result=true;
+			Block *link = last->block->get_link(exit);
+			if(link && link->reserve(this))
+			{
+				rsv_blocks.push_back(BlockRef(link, link->get_endpoint_by_link(*last->block)));
+				last = &rsv_blocks.back();
+				if(last->block->get_sensor_id())
+				{
+					++nsens;
+					result = true;
+				}
+			}
+			else
+				break;
 		}
 		else
 			break;
 	}
 
-	return result;
+	while(last && !last->block->get_sensor_id())
+	{
+		last->block->reserve(0);
+		rsv_blocks.erase(--rsv_blocks.end());
+		if(!rsv_blocks.empty())
+			last = &rsv_blocks.back();
+		else
+			last = 0;
+	}
+
+	return nsens;
+}
+
+void Train::update_speed()
+{
+	if(!target_speed)
+	{
+		loco.set_speed(0);
+		try_reserve = Time::TimeStamp();
+		set_status("Stopped");
+	}
+	else
+	{
+		unsigned nsens = 0;
+		for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+			if(i->block->get_sensor_id())
+				++nsens;
+
+		if(nsens==0)
+		{
+			loco.set_speed(0);
+			pure_speed = false;
+			try_reserve = Time::now()+2*Time::sec;
+			set_status("Blocked");
+		}
+		else if(nsens==1 && target_speed>3)
+		{
+			loco.set_speed(3);
+			pure_speed = false;
+			try_reserve = Time::now()+2*Time::sec;
+			set_status("Slow");
+		}
+		else
+		{
+			loco.set_speed(target_speed);
+			try_reserve = Time::TimeStamp();
+			set_status(format("Traveling %d kmh", travel_speed));
+		}
+	}
+}
+
+void Train::set_status(const string &s)
+{
+	status = s;
+	signal_status_changed.emit(s);
+}
+
+void Train::set_position(const Block::Endpoint &bep)
+{
+	cur_track = bep.track;
+	cur_track_ep = bep.track_ep;
+	offset = 0;
+	pos = cur_track->get_endpoint_position(cur_track_ep);
+}
+
+
+Train::Loader::Loader(Train &t):
+	DataFile::BasicLoader<Train>(t)
+{
+	add("name",        &Train::name);
+	add("speed_scale", &Train::speed_scale, &Train::speed_scale_weight);
 }
 
 } // namespace Marklin