]> ruin.nu Git - icfp05.git/blobdiff - bot/bot.cpp
some restructuring
[icfp05.git] / bot / bot.cpp
index 1c2b4dccf9adaf079abcdb2038aecf96ebd24020..28e8004a2167997f2b5a8bbe629a486ac03f6711 100644 (file)
@@ -2,61 +2,30 @@
 #include <sstream>
 #include <iterator>
 #include <queue>
+#include <vector>
 #include <utility>
 #include "bot.h"
 
 using namespace std;
 using namespace __gnu_cxx;
 
-struct VectComp{
-       bool operator()(const vector<string>& v1, const vector<string>& v2){
-               return v1.size() > v2.size();
-       }
-};
-Bot::Bot(string name, string type){
+
+Bot::Bot(const string& name, PlayerType type){
        _name = name;
        _type = type;
 
-       /*
-       priority_queue<vector<string>, vector<vector<string> >, VectComp> pq;
-
-       vector<string> v;
-       v.push_back("hej");
-       pq.push(v);
-       v.push_back("hå");
-       pq.push(v);
-       v.push_back("blaha");
-       pq.push(v);
-       v.clear();
-       v.push_back("hej hå");
-       pq.push(v);
-       v.clear();
-       v.push_back("hejsan");
-       pq.push(v);
-       v.push_back("what?");
-       pq.push(v);
-       v.push_back("blaha");
-       pq.push(v);
-
-       cerr << "Size: " << pq.top().size() << " " << pq.top()[0] << endl;
-       pq.pop();
-       cerr << "Size: " << pq.top().size() << " " << pq.top()[0] << endl;
-       pq.pop();
-       cerr << "Size: " << pq.top().size() << " " << pq.top()[0] << endl;
-       pq.pop();
-       cerr << "Size: " << pq.top().size() << " " << pq.top()[0] << endl;
-       pq.pop();
-       cerr << "Size: " << pq.top().size() << " " << pq.top()[0] << endl;
-       pq.pop();
-       cerr << "Size: " << pq.top().size() << " " << pq.top()[0] << endl;
-       pq.pop();
+       _playerTypeNames[robber] = "robber";
+       _playerTypeNames[cop_foot] = "cop-foot";
+       _playerTypeNames[cop_car] = "cop-car";
 
-*/
+       _playerTypes["robber"] = robber;
+       _playerTypes["cop-foot"] = cop_foot;
+       _playerTypes["cop-car"] = cop_car;
 
 }
 
 void Bot::play(){
-       cout << "reg: " << _name << " " << _type << endl;
+       cout << "reg: " << _name << " " << _playerTypeNames[_type] << endl;
 
        string input;
        getline(cin, input);
@@ -66,22 +35,11 @@ void Bot::play(){
        _name = value<string>(input);
        cerr << "Got name: " << _name << endl;
 
-       //robber and 5 cops
-       getline(cin, input);
-       _players[value<string>(input)].type = "robber";
-       getline(cin, input);
-       _players[value<string>(input)].type = "cop-foot";
-       getline(cin, input);
-       _players[value<string>(input)].type = "cop-foot";
-       getline(cin, input);
-       _players[value<string>(input)].type = "cop-foot";
-       getline(cin, input);
-       _players[value<string>(input)].type = "cop-foot";
+       getPlayers();
 
        cerr << "Got players, building graph." << endl;
        getline(cin, input);
        buildGraph();
-       getline(cin, input);
 
        while (true){
                getline(cin, input);
@@ -90,14 +48,25 @@ void Bot::play(){
                updateWorld();
                _type = _players[_name].type;
                _location = _players[_name].location;
-               getline(cin, input);
                cerr << "New turn" << endl;
                move(turn());
                cerr << "Done with turn." << endl;
        }
 }
 
-Bot::~Bot(){
+void Bot::getPlayers(){
+       string input;
+       //robber and 5 cops
+       getline(cin, input);
+       _players[value<string>(input)].type = robber;
+       getline(cin, input);
+       _players[value<string>(input)].type = cop_foot;
+       getline(cin, input);
+       _players[value<string>(input)].type = cop_foot;
+       getline(cin, input);
+       _players[value<string>(input)].type = cop_foot;
+       getline(cin, input);
+       _players[value<string>(input)].type = cop_foot;
 }
 
 /**
@@ -123,7 +92,15 @@ void Bot::buildGraph(){
                node >> input;
                node >> input;
                Intersection& inter = _intersections[input];
-               node >> inter.type;
+               node >> input;
+               if (input == "bank")
+                       inter.type = bank;
+               else if (input == "hq")
+                       inter.type = hq;
+               else if (input == "robber-start")
+                       inter.type = robber_start;
+               else
+                       inter.type = ordinary;
                node >> inter.x;
                node >> inter.y;
        }
@@ -149,7 +126,7 @@ void Bot::buildGraph(){
                street >> to;
                string type;
                street >> type;
-               cerr << "Street between: " << from << " and " << to << " of type: " << type << endl;
+               //cerr << "Street between: " << from << " and " << to << " of type: " << type << endl;
                if (type == "foot"){
                        _intersections[from].connections[to] = both;
                        Intersection& inter = _intersections[to];
@@ -159,6 +136,7 @@ void Bot::buildGraph(){
                        _intersections[from].connections[to] = car;
        }
        cerr << "Number of streets: " << streets << endl;
+       getline(cin, input);
 }
 
 void Bot::updateWorld(){
@@ -189,6 +167,11 @@ void Bot::updateWorld(){
                if (input == "ev/")
                        break;
                istringstream evidence(input);
+               int world;
+               evidence >> input;
+               evidence >> input;
+               evidence >> world;
+               _evidence[world] = input;
        }
        
        getline(cin,input);
@@ -205,14 +188,16 @@ void Bot::updateWorld(){
                //cerr << "Player: " << input << endl;
                Player& pl = _players[input];
                player >> pl.location;
-               player >> pl.type;
+               player >> input;
+               pl.type = _playerTypes[input];
        }
        //cerr << "Number of players: " << _players.size() << endl;
+       getline(cin, input);
 }
 
 void Bot::move(std::string location){
        cerr << "Moving to: " << location << endl;
-       cout << "mov: " << location << " " << _type << endl;
+       cout << "mov: " << location << " " << _playerTypeNames[_type] << endl;
 }
 
 template<class T>
@@ -229,43 +214,117 @@ std::string Bot::turn(){
        return _location;
 }
 
-std::vector<std::string> Bot::shortestPath(std::string from, std::string to, std::string type){
-       
-       priority_queue<vector<string>, vector<vector<string> >, VectComp > pq;
+struct SPInfoComp{
+       bool operator()(const SPInfo* v1, const SPInfo* v2){
+               return v1->cost > v2->cost;
+       }
+};
+
+std::list<std::string> Bot::shortestPath(const std::string& from, PlayerType type, const SPGoal& goal, bool reverse){
 
-       vector<string> v;
-       v.push_back(from);
+       //cerr << "New shortest path from: " << from << endl;
+       
+       priority_queue<SPInfo*, vector<SPInfo* >, SPInfoComp > pq;
+       hash_map<string,SPInfo> nodes;
 
-       pq.push(v);
-       hash_map<string,bool> settled;
+       SPInfo* node = &nodes[from];
+       node->name = from;
+       node->settled = false;
+       node->parent = 0;
+       node->cost = 0;
+       pq.push(node);
 
+       int g = 0;
+       bool hascar = type == cop_car;
        while(!pq.empty()){
-               const vector<string> w = pq.top();
+               node = pq.top();
                pq.pop();
                //cerr << "Vector with size: " << w.size() << endl;
-               //cerr << "Looking at: " << w.back() << endl;
+               //cerr << "Looking at: " << node->name << endl;
                //copy(w.begin(), w.end(), ostream_iterator<string>(cerr, " : "));
-               if (w.back() == to)
-                       return w;
-               settled[w.back()] = true;
-               Intersection& inter = _intersections[w.back()];
+
+               g = goal(node);
+               if (g < 0)
+                       break;
+               else if (g){
+                       list<string> l;
+                       front_insert_iterator<list<string> > ii(l);
+                       do{
+                               *ii++ = node->name;
+                               node = node->parent;
+                       }while (node != 0);
+                       return l;
+               }
+               node->settled = true;
+
+               Intersection& inter = _intersections[node->name];
                for (hash_map<string,StreetType>::const_iterator street = inter.connections.begin();
                                street != inter.connections.end(); ++street){
-                       if (settled.find(street->first) != settled.end())
-                               continue;
-                       //cerr << "Adding: " << street->first << endl;
-                       bool hascar = type == "cop-car";
-                       if ( (hascar &&  (street->second == car || street->second == both)) ||
-                                       (!hascar && (street->second == foot || street->second == both))){
-                               
-                               v = w;
-                               v.push_back(street->first);
-                               pq.push(v);
+                       hash_map<string,SPInfo>::iterator newNode = nodes.find(street->first);
+                       bool travelStreet = false;
+                       if (hascar){
+                               if (reverse){
+                                       if (street->second != foot){
+                                               hash_map<string,StreetType>::const_iterator st = _intersections[street->first].connections.find(node->name);
+                                               if (st != _intersections[street->first].connections.end())
+                                                       travelStreet = st->second != foot;
+                                               else
+                                                       travelStreet = false;
+                                       }else
+                                               travelStreet = true;
+                               }else
+                                       travelStreet = street->second != foot;
+                       }else{
+                               travelStreet = street->second != car;
+                       }
+                       if (travelStreet){
+                               //cerr << "Adding street: " << street->first << endl;
+                               SPInfo* n = 0;
+                               if (newNode == nodes.end()){
+                                       n = &nodes[street->first];
+                                       n->name = street->first;
+                                       n->settled = false;
+                                       n->parent = 0;
+                                       n->cost = 10000;
+                               }else if (newNode->second.settled)
+                                       continue;
+                               else
+                                       n = &newNode->second;
+
+                               if (n->cost > node->cost + 1){
+                                       n->cost = node->cost + 1;
+                                       n->parent = node;
+                                       pq.push(n);
+                               }
                        }
 
                }
                
        }
        
-       return vector<string>();
+       return list<string>();
+}
+
+SimpleSPGoal::SimpleSPGoal(std::string to):_to(to){
+}
+
+int SimpleSPGoal::operator()(const SPInfo* node) const{
+       if (node->name == _to)
+               return 1;
+       return 0;
+}
+
+FindPlayer::FindPlayer(const hash_map<string, Player>& players, PlayerType type, int limit) : _players(players), _type(type), _limit(limit){
+}
+
+int FindPlayer::operator()(const SPInfo* node) const{
+       if (_limit > 0 && node->cost >= _limit)
+               return -1;
+       for(hash_map<string, Player>::const_iterator player = _players.begin();
+                       player != _players.end(); ++player){
+               if (player->second.type == _type && player->second.location == node->name){
+                       return 1;
+               }
+       }
+       return 0;
 }