Building and linking your project with Nemo

Once you have finished defining your additional elements, you have to link them with the framework to be able to use them in a simulation run. For that, you will have to actually write a real program (or modify the existing one). Therefore, you have to add a main() function somewhere in your code, compile it and link it against the nemo framework.

Here is how to write the main() function (in a main.cpp file):

#include "simulation.h"
#include "metapop.h"
#include "simenv.h"
#include "mytrait.h"
#include "mylce.h"
 
int main ( int argc, char **argv )
{
 
  Metapop thePop;
  //create a new SimRunner that will run the sim:
  SimRunner *theSim = SIMenv::setMainSim( &thePop );
 
  //attach your elements, the trait prototypes to the trait container:
  theSim->add_trait( new MyTraitProto() );
 
  //add the LCE to the LCE container:
  theSim->add_LCE( new MyLce() );
 
  //that's it, the simulation is ready to run!
  if( !theSim->run(argc, argv) ) fatal( " could not run the sim !\n" );
 
  //cleaning before quitting
  delete theSim;
 
  return 0;
}

Compile and link your project:

g++ -O3 -c mytrait.cpp -o mytrait.o
g++ -O3 -c mylce.cpp -o mylce.o
g++ -O3 -c main.cpp -o main.o
g++ -o myprogram-1.0 mytrait.o mylce.o main.o -lstdc++ -lnemo2.0

The commands above assume that the library libnemo2.0.dylib (or .so, or .dll, depending on the system) is on your path. Otherwise, give the path to the library with the -L option before -lnemo2.0 like this: g++ -o myprogram-1.0 ... -Lnemo-2.0/lib/ -lnemo2.0

Please have a look at the Makefile provided with the code release for more details.

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