vector<Move> AgentPNS::get_pv() const {
vector<Move> pv;
const Node * n = & root;
char turn = rootboard.toplay();
while(n && !n->children.empty()){
Move m = return_move(n, turn);
pv.push_back(m);
n = find_child(n, m);
turn = 3 - turn;
}
if(pv.size() == 0)
pv.push_back(Move(M_RESIGN));
return pv;
}
vector<Move> Player::get_pv(){
vector<Move> pv;
Node * r, * n = & root;
char turn = rootboard.toplay();
while(!n->children.empty()){
r = return_move(n, turn);
if(!r) break;
pv.push_back(r->move);
turn = 3 - turn;
n = r;
}
if(pv.size() == 0)
pv.push_back(Move(M_RESIGN));
return pv;
}
Player::Node * Player::genmove(double time, int max_runs, bool flexible){
time_used = 0;
int toplay = rootboard.toplay();
if(rootboard.won() >= 0 || (time <= 0 && max_runs == 0))
return NULL;
Time starttime;
stop_threads();
if(runs)
logerr("Pondered " + to_str(runs) + " runs\n");
runs = 0;
maxruns = max_runs;
for(unsigned int i = 0; i < threads.size(); i++)
threads[i]->reset();
// if the move is forced and the time can be added to the clock, don't bother running at all
if(!flexible || root.children.num() != 1){
//let them run!
start_threads();
Alarm timer;
if(time > 0)
timer(time - (Time() - starttime), std::bind(&Player::timedout, this));
//wait for the timer to stop them
runbarrier.wait();
CAS(threadstate, Thread_Wait_End, Thread_Wait_Start);
assert(threadstate == Thread_Wait_Start);
}
if(ponder && root.outcome < 0)
start_threads();
time_used = Time() - starttime;
//return the best one
return return_move(& root, toplay);
}