X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibmarklin%2Ftrain.cpp;h=e992f418ed4cc324a4ff84d900ded8ac37700a0d;hb=80dcfa55c913037066e43fa115ae56fa51b974f2;hp=9300267331c4e0c1f68c086f014ce5696605467b;hpb=dcbe77ccf560aae2d10d645a02f6256fc0caf6f3;p=r2c2.git

diff --git a/source/libmarklin/train.cpp b/source/libmarklin/train.cpp
index 9300267..e992f41 100644
--- a/source/libmarklin/train.cpp
+++ b/source/libmarklin/train.cpp
@@ -11,6 +11,8 @@ Distributed under the GPL
 #include <msp/time/utils.h>
 #include "control.h"
 #include "except.h"
+#include "layout.h"
+#include "route.h"
 #include "tracktype.h"
 #include "trafficmanager.h"
 #include "train.h"
@@ -23,7 +25,9 @@ namespace Marklin {
 Train::Train(TrafficManager &tm, Locomotive &l):
 	trfc_mgr(tm),
 	loco(l),
+	pending_block(0),
 	target_speed(0),
+	route(0),
 	status("Unplaced"),
 	travel_dist(0),
 	travel_speed(0),
@@ -42,8 +46,8 @@ Train::Train(TrafficManager &tm, Locomotive &l):
 	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));
+		i->second->signal_path_changing.connect(sigc::bind(sigc::mem_fun(this, &Train::turnout_path_changing), i->second));
+		i->second->signal_path_changed.connect(sigc::bind(sigc::mem_fun(this, &Train::turnout_path_changed), i->second));
 	}
 }
 
@@ -64,7 +68,7 @@ void Train::set_speed(unsigned speed)
 	if(!target_speed)
 	{
 		trfc_mgr.get_control().set_timer(3*Time::sec).signal_timeout.connect(
-			sigc::bind_return(sigc::mem_fun(this, &Train::release_reserved_blocks), false));
+			sigc::bind_return(sigc::bind(sigc::mem_fun(this, &Train::release_blocks), sigc::ref(rsv_blocks)), false));
 	}
 	else
 		reserve_more();
@@ -80,46 +84,44 @@ void Train::set_reverse(bool rev)
 	loco.set_reverse(rev);
 }
 
-void Train::place(Block *block, unsigned entry)
+void Train::set_route(const Route *r)
 {
-	for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end();)
-	{
-		i->block->reserve(0);
-		i = rsv_blocks.erase(i);
-	}
+	route = r;
+	signal_route_changed.emit(route);
+}
 
-	for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end();)
-	{
-		i->block->reserve(0);
-		i = cur_blocks.erase(i);
-	}
+void Train::place(Block &block, unsigned entry)
+{
+	if(target_speed)
+		set_speed(0);
+
+	release_blocks(rsv_blocks);
+	release_blocks(cur_blocks);
 
-	if(!block->reserve(this))
+	if(!block.reserve(this))
 	{
 		set_status("Unplaced");
 		return;
 	}
 
-	cur_blocks.push_back(BlockRef(block, entry));
-	set_position(block->get_endpoints()[entry]);
+	cur_blocks.push_back(BlockRef(&block, entry));
+	set_position(block.get_endpoints()[entry]);
 
 	set_status("Stopped");
 }
 
-bool Train::free_block(Block *block)
+bool Train::free_block(Block &block)
 {
 	unsigned nsens = 0;
 	for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
 	{
-		if(i->block==block)
+		if(i->block==&block)
 		{
 			if(nsens<1)
 				return false;
-			while(i!=rsv_blocks.end())
-			{
-				i->block->reserve(0);
-				i = rsv_blocks.erase(i);
-			}
+			for(list<BlockRef>::iterator j=i; j!=rsv_blocks.end(); ++j)
+				j->block->reserve(0);
+			rsv_blocks.erase(i, rsv_blocks.end());
 			update_speed();
 			return true;
 		}
@@ -130,38 +132,52 @@ bool Train::free_block(Block *block)
 	return false;
 }
 
+int Train::get_entry_to_block(Block &block) const
+{
+	for(list<BlockRef>::const_iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
+		if(i->block==&block)
+			return i->entry;
+	for(list<BlockRef>::const_iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+		if(i->block==&block)
+			return i->entry;
+	return -1;
+}
+
 void Train::tick(const Time::TimeStamp &t, const Time::TimeDelta &dt)
 {
 	if(try_reserve && t>try_reserve)
-	{
 		reserve_more();
-		update_speed();
-	}
 
 	if(cur_track)
 	{
-		unsigned route = 0;
+		unsigned path = 0;
 		if(cur_track->get_turnout_id())
-			route = trfc_mgr.get_control().get_turnout(cur_track->get_turnout_id()).get_route();
+			path = trfc_mgr.get_control().get_turnout(cur_track->get_turnout_id()).get_path();
 
 		offset += get_real_speed(loco.get_speed())*(dt/Time::sec);
-		if(offset>cur_track->get_type().get_route_length(route))
+		float path_len = cur_track->get_type().get_path_length(path);
+		if(offset>path_len)
 		{
-			int out = cur_track->traverse(cur_track_ep, route);
-			if(out>=0)
+			unsigned out = cur_track->traverse(cur_track_ep, path);
+			Track *next = cur_track->get_link(out);
+
+			bool ok = false;
+			for(list<BlockRef>::const_iterator i=cur_blocks.begin(); (!ok && i!=cur_blocks.end()); ++i)
+				ok = i->block->get_tracks().count(next);
+
+			if(ok)
 			{
-				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;
+				offset = path_len-0.001;
 		}
 
 		if(cur_track)
-			pos = cur_track->get_point(cur_track_ep, route, offset);
+			pos = cur_track->get_point(cur_track_ep, path, offset);
 	}
 }
 
@@ -171,6 +187,21 @@ void Train::save(list<DataFile::Statement> &st) const
 	for(unsigned i=0; i<=14; ++i)
 		if(real_speed[i].weight)
 			st.push_back((DataFile::Statement("real_speed"), i, real_speed[i].speed, real_speed[i].weight));
+	if(route)
+		st.push_back((DataFile::Statement("route"), route->get_name()));
+
+	if(!cur_blocks.empty())
+	{
+		list<BlockRef> blocks = cur_blocks;
+		if(loco.get_reverse())
+			reverse_blocks(blocks);
+
+		Block *prev = blocks.front().block->get_endpoints()[blocks.front().entry].link;
+		st.push_back((DataFile::Statement("block_hint"), prev->get_id()));
+
+		for(list<BlockRef>::const_iterator i=blocks.begin(); i!=blocks.end(); ++i)
+			st.push_back((DataFile::Statement("block"), i->block->get_id()));
+	}
 }
 
 void Train::locomotive_reverse_changed(bool)
@@ -178,19 +209,16 @@ 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);
+	reverse_blocks(cur_blocks);
 	reserve_more();
-	update_speed();
 
 	if(cur_track)
 	{
-		unsigned route = 0;
+		unsigned path = 0;
 		if(unsigned turnout = cur_track->get_turnout_id())
-			route = trfc_mgr.get_control().get_turnout(turnout).get_route();
-		cur_track_ep = cur_track->traverse(cur_track_ep, route);
-		offset = cur_track->get_type().get_route_length(route)-offset;
+			path = trfc_mgr.get_control().get_turnout(turnout).get_path();
+		cur_track_ep = cur_track->traverse(cur_track_ep, path);
+		offset = cur_track->get_type().get_path_length(path)-offset;
 	}
 }
 
@@ -200,6 +228,7 @@ void Train::sensor_event(bool state, Sensor *sensor)
 
 	if(state)
 	{
+		// Find the first sensor block from our reserved blocks that isn't this sensor
 		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)
@@ -207,6 +236,7 @@ void Train::sensor_event(bool state, Sensor *sensor)
 
 		if(i!=rsv_blocks.begin())
 		{
+			// Compute speed and update related state
 			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;
 
@@ -222,44 +252,50 @@ void Train::sensor_event(bool state, Sensor *sensor)
 			{
 				j->block->traverse(j->entry, &block_len);
 				travel_dist += block_len;
+
+				if(j->block->get_sensor_id()==addr)
+					set_position(j->block->get_endpoints()[j->entry]);
 			}
 			last_entry_time = Time::now();
 			pure_speed = true;
 
+			// Move blocks up to the next sensor to our current blocks
 			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();
+			// Try to get more blocks if we're moving
+			if(target_speed && reserve_more()<2)
+				update_speed();
 		}
 	}
 	else
 	{
+		// Find the first sensor in our current blocks that's still active
+		list<BlockRef>::iterator end = cur_blocks.begin();
 		for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
-			if(unsigned b_addr = i->block->get_sensor_id())
+			if(i->block->get_sensor_id())
 			{
-				if(b_addr==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(trfc_mgr.get_control().get_sensor(i->block->get_sensor_id()).get_state())
+					break;
+				else
+					end = i;
 			}
+		
+		if(end!=cur_blocks.begin())
+		{
+			// Free blocks up to the last inactive sensor
+			++end;
+			for(list<BlockRef>::iterator i=cur_blocks.begin(); i!=end; ++i)
+				i->block->reserve(0);
+			cur_blocks.erase(cur_blocks.begin(), end);
+		}
 
-		if(target_speed)
+		// XXX Should watch for trfc_mgr.signal_block_reserved rather than sensors
+		if(target_speed && pending_block && addr==pending_block->get_sensor_id())
 			reserve_more();
 	}
 }
 
-void Train::turnout_route_changing(unsigned, Turnout *turnout)
+void Train::turnout_path_changing(unsigned, Turnout *turnout)
 {
 	unsigned tid = turnout->get_address();
 	for(list<BlockRef>::const_iterator i=cur_blocks.begin(); i!=cur_blocks.end(); ++i)
@@ -280,7 +316,7 @@ void Train::turnout_route_changing(unsigned, Turnout *turnout)
 	}
 }
 
-void Train::turnout_route_changed(unsigned, Turnout *turnout)
+void Train::turnout_path_changed(unsigned, Turnout *turnout)
 {
 	unsigned tid = turnout->get_address();
 	for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
@@ -292,9 +328,11 @@ void Train::turnout_route_changed(unsigned, Turnout *turnout)
 				i = rsv_blocks.erase(i);
 			}
 			reserve_more();
-			update_speed();
 			return;
 		}
+
+	if(pending_block && tid==pending_block->get_turnout_id())
+		reserve_more();
 }
 
 unsigned Train::reserve_more()
@@ -307,45 +345,97 @@ unsigned Train::reserve_more()
 	if(!last)
 		return 0;
 
+	pending_block = 0;
+
+	// See how many blocks we already have
 	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)
+	bool got_more = false;
+	BlockRef *good = last;
+	unsigned good_sens = nsens;
+	while(good_sens<3)
 	{
-		int exit = last->block->traverse(last->entry);
-		if(exit>=0) 
+		// Traverse to the next block
+		unsigned exit = last->block->traverse(last->entry);
+		Block *link = last->block->get_link(exit);
+		if(!link)
+			break;
+
+		int entry = link->get_endpoint_by_link(*last->block);
+		if(!link->reserve(this))
 		{
-			Block *link = last->block->get_link(exit);
-			if(link && link->reserve(this))
+			// If we found another train going in the same direction as us, we can keep the blocks we got
+			int other_entry = link->get_train()->get_entry_to_block(*link);
+			if(other_entry==entry || link->traverse(entry)==link->traverse(other_entry))
 			{
-				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;
-				}
+				good = last;
+				good_sens = nsens;
 			}
-			else
+			pending_block = link;
+			break;
+		}
+
+		if(link->get_turnout_id())
+		{
+			const Block::Endpoint &ep = link->get_endpoints()[entry];
+			const Endpoint &track_ep = ep.track->get_type().get_endpoints()[ep.track_ep];
+
+			if(track_ep.paths&(track_ep.paths-1))
+			{
+				// We're facing the points - keep the blocks reserved so far
+				good = last;
+				good_sens = nsens;
+			}
+
+			Turnout &turnout = trfc_mgr.get_control().get_turnout(link->get_turnout_id());
+
+			// Figure out what path we'd like to take on the turnout
+			int path = -1;
+			if(route)
+				path = route->get_turnout(link->get_turnout_id());
+			if(path<0)
+				path = turnout.get_path();
+			if(!((track_ep.paths>>path)&1))
+			{
+				for(unsigned i=0; track_ep.paths>>i; ++i)
+					if((track_ep.paths>>i)&1)
+						path = i;
+			}
+
+			if(path!=turnout.get_path())
+			{
+				// The turnout is set to wrong path - switch and wait for it
+				link->reserve(0);
+				pending_block = link;
+				turnout.set_path(path);
 				break;
+			}
+		}
+
+		rsv_blocks.push_back(BlockRef(link, entry));
+		last = &rsv_blocks.back();
+		if(last->block->get_sensor_id())
+		{
+			++nsens;
+			got_more = true;
 		}
-		else
-			break;
 	}
 
-	while(last && !last->block->get_sensor_id())
+	// Unreserve blocks that were not good
+	while(!rsv_blocks.empty() && last!=good)
 	{
 		last->block->reserve(0);
 		rsv_blocks.erase(--rsv_blocks.end());
 		if(!rsv_blocks.empty())
 			last = &rsv_blocks.back();
-		else
-			last = 0;
 	}
 
+	if(got_more)
+		update_speed();
+
 	return nsens;
 }
 
@@ -422,14 +512,23 @@ unsigned Train::find_speed(float real) const
 {
 	if(real<=real_speed[0].speed)
 		return 0;
-	if(real>=real_speed[14].speed)
-		return 14;
 
 	unsigned low = 0;
 	unsigned high = 0;
-	for(high=0; real_speed[high].speed<real; ++high)
-		if(real_speed[high].weight)
-			low = high;
+	for(unsigned i=0; (!high && i<=14); ++i)
+		if(real_speed[i].weight)
+		{
+			if(real_speed[i].speed<real)
+				low = i;
+			else
+				high = i;
+		}
+	if(!high)
+	{
+		if(!low)
+			return 0;
+		return min(static_cast<unsigned>(low*real/real_speed[low].speed), 14U);
+	}
 
 	float f = (real-real_speed[low].speed)/(real_speed[high].speed-real_speed[low].speed);
 	return static_cast<unsigned>(low*(1-f)+high*f+0.5);
@@ -449,11 +548,18 @@ void Train::set_position(const Block::Endpoint &bep)
 	pos = cur_track->get_endpoint_position(cur_track_ep);
 }
 
-void Train::release_reserved_blocks()
+void Train::release_blocks(list<BlockRef> &blocks)
 {
-	for(list<BlockRef>::iterator i=rsv_blocks.begin(); i!=rsv_blocks.end(); ++i)
+	for(list<BlockRef>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
 		i->block->reserve(0);
-	rsv_blocks.clear();
+	blocks.clear();
+}
+
+void Train::reverse_blocks(list<BlockRef> &blocks) const
+{
+	blocks.reverse();
+	for(list<BlockRef>::iterator i=blocks.begin(); i!=blocks.end(); ++i)
+		i->entry = i->block->traverse(i->entry);
 }
 
 
@@ -470,10 +576,36 @@ void Train::RealSpeed::add(float s, float w)
 
 
 Train::Loader::Loader(Train &t):
-	DataFile::BasicLoader<Train>(t)
+	DataFile::BasicLoader<Train>(t),
+	prev_block(0)
 {
+	add("block",       &Loader::block);
+	add("block_hint",  &Loader::block_hint);
 	add("name",        &Train::name);
 	add("real_speed",  &Loader::real_speed);
+	add("route",       &Loader::route);
+}
+
+void Train::Loader::block(unsigned id)
+{
+	Block &blk = obj.trfc_mgr.get_block(id);
+	int entry = -1;
+	if(prev_block)
+		entry = blk.get_endpoint_by_link(*prev_block);
+	if(entry<0)
+		entry = 0;
+
+	blk.reserve(&obj);
+	obj.cur_blocks.push_back(BlockRef(&blk, entry));
+	obj.status = "Stopped";
+	obj.set_position(blk.get_endpoints()[entry]);
+
+	prev_block = &blk;
+}
+
+void Train::Loader::block_hint(unsigned id)
+{
+	prev_block = &obj.trfc_mgr.get_block(id);
 }
 
 void Train::Loader::real_speed(unsigned i, float speed, float weight)
@@ -482,4 +614,9 @@ void Train::Loader::real_speed(unsigned i, float speed, float weight)
 	obj.real_speed[i].weight = weight;
 }
 
+void Train::Loader::route(const string &n)
+{
+	obj.route = &obj.trfc_mgr.get_layout().get_route(n);
+}
+
 } // namespace Marklin