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model_load.cc
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model_load.cc
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#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
#include <limits.h>
#include <libgen.h> // for dirname()
#include <string.h>
#include <ltdl.h> // for library module loading
#include "stage.hh"
#include "worldfile.hh"
#include "file_manager.hh"
using namespace Stg;
//#define DEBUG
void Model::Load()
{
assert( wf );
assert( wf_entity );
PRINT_DEBUG1( "Model \"%s\" loading...", token );
if( wf->PropertyExists( wf_entity, "joules" ) )
{
if( !power_pack )
power_pack = new PowerPack( this );
stg_joules_t j = wf->ReadFloat( wf_entity, "joules",
power_pack->GetStored() ) ;
/* assume that the store is full, so the capacity is the same as
the charge */
power_pack->SetStored( j );
power_pack->SetCapacity( j );
}
if( wf->PropertyExists( wf_entity, "joules_capacity" ) )
{
if( !power_pack )
power_pack = new PowerPack( this );
power_pack->SetCapacity( wf->ReadFloat( wf_entity, "joules_capacity",
power_pack->GetCapacity() ) );
}
// use my own pack or an ancestor's for the other energy properties
PowerPack* pp = FindPowerPack();
watts = wf->ReadFloat( wf_entity, "watts", watts );
if( (watts > 0) && !pp )
PRINT_WARN1( "Model %s: Setting \"watts\" has no effect unless \"joules\" is specified for this model or a parent", token );
watts_give = wf->ReadFloat( wf_entity, "give_watts", watts_give );
if( (watts_give > 0.0) && !pp)
PRINT_WARN1( "Model %s: Setting \"watts_give\" has no effect unless \"joules\" is specified for this model or a parent", token );
if( watts_give ) // need to get the world to test this model for charging
//if( ! g_list_find( world->charge_list, this ) )
//world->charge_list = g_list_append( world->charge_list, this );
world->ChargeListAdd( this );
watts_take = wf->ReadFloat( wf_entity, "take_watts", watts_take );
if( (watts_take > 0.0) & !pp )
PRINT_WARN1( "Model %s: Setting \"watts_take\" has no effect unless \"joules\" is specified for this model or a parent", token );
if( wf->PropertyExists( wf_entity, "debug" ) )
{
PRINT_WARN2( "debug property specified for model %d %s\n",
wf_entity, this->token );
this->debug = wf->ReadInt( wf_entity, "debug", this->debug );
}
if( wf->PropertyExists( wf_entity, "name" ) )
{
char *name = (char*)wf->ReadString(wf_entity, "name", NULL );
if( name )
{
//printf( "adding name %s to %s\n", name, this->token );
this->token = strdup( name );
world->AddModel( this ); // add this name to the world's table
}
else
PRINT_ERR1( "Name blank for model %s. Check your worldfile\n", this->token );
}
//PRINT_WARN1( "%s::Load", token );
if( wf->PropertyExists( wf_entity, "origin" ) )
{
Geom geom = GetGeom();
geom.pose.Load( wf, wf_entity, "origin" );
SetGeom( geom );
}
if( wf->PropertyExists( wf_entity, "size" ) )
{
Geom geom = GetGeom();
geom.size.Load( wf, wf_entity, "size" );
SetGeom( geom );
}
if( wf->PropertyExists( wf_entity, "pose" ))
{
Pose pose = GetPose();
pose.Load( wf, wf_entity, "pose" );
SetPose( pose );
}
if( wf->PropertyExists( wf_entity, "velocity" ))
{
Velocity vel = GetVelocity();
vel.Load( wf, wf_entity, "velocity" );
SetVelocity( vel );
}
if( wf->PropertyExists( wf_entity, "color" ))
{
Color col( 1,0,0 ); // red;
const char* colorstr = wf->ReadString( wf_entity, "color", NULL );
if( colorstr )
{
if( strcmp( colorstr, "random" ) == 0 )
col = Color( drand48(), drand48(), drand48() );
else
col = Color( colorstr );
}
this->SetColor( col );
}
if( wf->PropertyExists( wf_entity, "color_rgba" ))
{
if (wf->GetProperty(wf_entity,"color_rgba")->value_count < 4)
{
PRINT_ERR1( "model %s color_rgba requires 4 values\n", this->token );
}
else
{
double red = wf->ReadTupleFloat( wf_entity, "color_rgba", 0, 0 );
double green = wf->ReadTupleFloat( wf_entity, "color_rgba", 1, 0 );
double blue = wf->ReadTupleFloat( wf_entity, "color_rgba", 2, 0 );
double alpha = wf->ReadTupleFloat( wf_entity, "color_rgba", 3, 1 );
this->SetColor( Color( red, green, blue, alpha ));
}
}
if( wf->PropertyExists( wf_entity, "bitmap" ) )
{
const char* bitmapfile = wf->ReadString( wf_entity, "bitmap", NULL );
assert( bitmapfile );
if( has_default_block )
{
blockgroup.Clear();
has_default_block = false;
}
blockgroup.LoadBitmap( this, bitmapfile, wf );
}
if( wf->PropertyExists( wf_entity, "boundary" ))
{
this->SetBoundary( wf->ReadInt(wf_entity, "boundary", this->boundary ));
if( boundary )
{
//PRINT_WARN1( "setting boundary for %s\n", token );
blockgroup.CalcSize();
double epsilon = 0.01;
Size bgsize = blockgroup.GetSize();
AddBlockRect(blockgroup.minx,blockgroup.miny, epsilon, bgsize.y, bgsize.z );
AddBlockRect(blockgroup.minx,blockgroup.miny, bgsize.x, epsilon, bgsize.z );
AddBlockRect(blockgroup.minx,blockgroup.maxy-epsilon, bgsize.x, epsilon, bgsize.z );
AddBlockRect(blockgroup.maxx-epsilon,blockgroup.miny, epsilon, bgsize.y, bgsize.z );
}
}
if( wf->PropertyExists( wf_entity, "mass" ))
this->SetMass( wf->ReadFloat(wf_entity, "mass", this->mass ));
vis.Load( wf, wf_entity );
SetFiducialReturn( vis.fiducial_return ); // may have some work to do
gui.Load( wf, wf_entity );
if( wf->PropertyExists( wf_entity, "map_resolution" ))
this->SetMapResolution( wf->ReadFloat(wf_entity, "map_resolution", this->map_resolution ));
// populate the key-value database
if( wf->PropertyExists( wf_entity, "db_count" ) )
LoadDataBaseEntries( wf, wf_entity );
if (vis.gravity_return)
{
Velocity vel = GetVelocity();
this->SetVelocity( vel );
StartUpdating();
}
if( wf->PropertyExists( wf_entity, "friction" ))
{
this->SetFriction( wf->ReadFloat(wf_entity, "friction", this->friction ));
}
if( wf->PropertyExists( wf_entity, "ctrl" ))
{
char* lib = (char*)wf->ReadString(wf_entity, "ctrl", NULL );
//char* argstr = (char*)wf->ReadString(wf_entity, "ctrl_argstr", NULL );
if( !lib )
printf( "Error - NULL library name specified for model %s\n", token );
else
LoadControllerModule( lib );
}
if( wf->PropertyExists( wf_entity, "say" ))
this->Say( wf->ReadString(wf_entity, "say", NULL ));
trail_length = wf->ReadInt( wf_entity, "trail_length", trail_length );
trail_interval = wf->ReadInt( wf_entity, "trail_interval", trail_interval );
// call any type-specific load callbacks
this->CallCallbacks( &hooks.load );
// MUST BE THE LAST THING LOADED
if( wf->PropertyExists( wf_entity, "alwayson" ))
{
if( wf->ReadInt( wf_entity, "alwayson", 0) > 0 )
Startup();
}
MapWithChildren();
if( this->debug )
printf( "Model \"%s\" is in debug mode\n", token );
PRINT_DEBUG1( "Model \"%s\" loading complete", token );
}
void Model::Save( void )
{
assert( wf );
assert( wf_entity );
PRINT_DEBUG1( "Model \"%s\" saving...", token );
PRINT_DEBUG4( "saving model %s pose %.2f %.2f %.2f",
this->token,
this->pose.x,
this->pose.y,
this->pose.a );
// just in case
pose.a = normalize( pose.a );
geom.pose.a = normalize( geom.pose.a );
if( wf->PropertyExists( wf_entity, "pose" ) )
{
wf->WriteTupleLength( wf_entity, "pose", 0, this->pose.x);
wf->WriteTupleLength( wf_entity, "pose", 1, this->pose.y);
wf->WriteTupleLength( wf_entity, "pose", 2, this->pose.z);
wf->WriteTupleAngle( wf_entity, "pose", 3, this->pose.a );
}
if( wf->PropertyExists( wf_entity, "size" ) )
{
wf->WriteTupleLength( wf_entity, "size", 0, this->geom.size.x);
wf->WriteTupleLength( wf_entity, "size", 1, this->geom.size.y);
wf->WriteTupleLength( wf_entity, "size", 2, this->geom.size.z);
}
if( wf->PropertyExists( wf_entity, "origin" ) )
{
wf->WriteTupleLength( wf_entity, "origin", 0, this->geom.pose.x);
wf->WriteTupleLength( wf_entity, "origin", 1, this->geom.pose.y);
wf->WriteTupleLength( wf_entity, "origin", 2, this->geom.pose.z);
wf->WriteTupleAngle( wf_entity, "origin", 3, this->geom.pose.a);
}
// call any type-specific save callbacks
this->CallCallbacks( &hooks.save );
PRINT_DEBUG1( "Model \"%s\" saving complete.", token );
}
void Model::LoadControllerModule( char* lib )
{
//printf( "[Ctrl \"%s\"", lib );
//fflush(stdout);
/* Initialise libltdl. */
int errors = lt_dlinit();
if (errors)
{
printf( "Libtool error: %s. Failed to init libtool. Quitting\n",
lt_dlerror() ); // report the error from libtool
puts( "libtool error #1" );
fflush( stdout );
exit(-1);
}
lt_dlsetsearchpath( FileManager::stagePath().c_str() );
lt_dlhandle handle = NULL;
if(( handle = lt_dlopenext( lib ) ))
{
//printf( "]" );
this->initfunc = (ctrlinit_t*)lt_dlsym( handle, "Init" );
if( this->initfunc == NULL )
{
printf( "Libtool error: %s. Something is wrong with your plugin. Quitting\n",
lt_dlerror() ); // report the error from libtool
puts( "libtool error #1" );
fflush( stdout );
exit(-1);
}
}
else
{
printf( "Libtool error: %s. Can't open your plugin controller. Quitting\n",
lt_dlerror() ); // report the error from libtool
PRINT_ERR1( "Failed to open \"%s\". Check that it can be found by searching the directories in your STAGEPATH environment variable, or the current directory if STAGEPATH is not set.]\n", lib );
puts( "libtool error #2" );
fflush( stdout );
exit(-1);
}
fflush(stdout);
// as we now have a controller, the world needs to call our update function
StartUpdating();
}
void Model::LoadDataBaseEntries( Worldfile* wf, int entity )
{
int entry_count = wf->ReadInt( entity, "db_count", 0 );
if( entry_count < 1 )
return;
for( int e=0; e<entry_count; e++ )
{
const char* entry = wf->ReadTupleString( entity, "db", e, NULL );
const size_t SZ = 64;
char key[SZ], type[SZ], value[SZ];
sscanf( entry, "%[^<]<%[^>]>%[^\"]", key, type, value );
if( strcmp( type, "int" ) == 0 )
SetPropertyInt( strdup(key), atoi(value) );
else if( strcmp( type, "float" ) == 0 )
SetPropertyFloat( strdup(key), strtod(value, NULL) );
else if( strcmp( type, "string" ) == 0 )
SetPropertyStr( strdup(key), value );
else
PRINT_ERR1( "unknown database entry type \"%s\"\n", type );
}
}