fixed priority queue and started to implement the robber algorithm, it needs tuning...

[icfp05.git] / bot / bot.cpp

diff --git a/bot/bot.cpp b/bot/bot.cpp
index 8946d03f6feba2764407b3f0dedd7174a6c0acc6..1c2b4dccf9adaf079abcdb2038aecf96ebd24020 100644 (file)
--- a/bot/bot.cpp
+++ b/bot/bot.cpp
@@ -1,14 +1,58 @@
 #include <iostream>
 #include <sstream>
 #include <iterator>
+#include <queue>
+#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){
        _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();
+
+*/
+
 }
 
 void Bot::play(){
@@ -47,7 +91,9 @@ void Bot::play(){
                _type = _players[_name].type;
                _location = _players[_name].location;
                getline(cin, input);
+               cerr << "New turn" << endl;
                move(turn());
+               cerr << "Done with turn." << endl;
        }
 }
 
@@ -98,10 +144,12 @@ void Bot::buildGraph(){
                istringstream street(input);
                string from;
                street >> from;
+               street >> from;
                string to;
                street >> to;
                string type;
                street >> type;
+               cerr << "Street between: " << from << " and " << to << " of type: " << type << endl;
                if (type == "foot"){
                        _intersections[from].connections[to] = both;
                        Intersection& inter = _intersections[to];
@@ -117,11 +165,11 @@ void Bot::updateWorld(){
        string input;
        getline(cin,input);
        _world = value<int>(input);
-       cerr << "World: " << _world << endl;
+       //cerr << "World: " << _world << endl;
 
        getline(cin,input);
        _robbed = value<int>(input);
-       cerr << "Robbed: " << _robbed << endl;
+       //cerr << "Robbed: " << _robbed << endl;
 
        getline(cin,input);
        while (true){
@@ -133,7 +181,7 @@ void Bot::updateWorld(){
                bank >> input;
                bank >> _banks[input];
        }
-       cerr << "Number of banks: " << _banks.size() << endl;
+       //cerr << "Number of banks: " << _banks.size() << endl;
        
        getline(cin,input);
        while (true){
@@ -154,15 +202,16 @@ void Bot::updateWorld(){
                istringstream player(input);
                player >> input;
                player >> input;
-               cerr << "Player: " << input << endl;
+               //cerr << "Player: " << input << endl;
                Player& pl = _players[input];
                player >> pl.location;
                player >> pl.type;
        }
-       cerr << "Number of players: " << _players.size() << endl;
+       //cerr << "Number of players: " << _players.size() << endl;
 }
 
 void Bot::move(std::string location){
+       cerr << "Moving to: " << location << endl;
        cout << "mov: " << location << " " << _type << endl;
 }
 
@@ -176,6 +225,47 @@ T value(std::string input){
 }
 
 std::string Bot::turn(){
+       cerr << "Using stupid stand still Bot::turn" << endl;
        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;
+
+       vector<string> v;
+       v.push_back(from);
+
+       pq.push(v);
+       hash_map<string,bool> settled;
+
+       while(!pq.empty()){
+               const vector<string> w = pq.top();
+               pq.pop();
+               //cerr << "Vector with size: " << w.size() << endl;
+               //cerr << "Looking at: " << w.back() << 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()];
+               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);
+                       }
+
+               }
+               
+       }
+       
+       return vector<string>();
+}