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MyBot.cpp
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MyBot.cpp
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#include <stdlib.h>
#include <time.h>
#include <cstdlib>
#include <ctime>
#include <time.h>
#include <set>
#include <fstream>
#include <cmath>
#include <map>
#include <chrono>
#include "hlt.hpp"
#include "networking.hpp"
const int CAP_BOUND = 265;
const float EPSILON = 0.01;
unsigned char get_nearest_direction(const hlt::Location &start_location, const hlt::Site &start_site,
hlt::GameMap &present_map, unsigned char width, unsigned char height, unsigned char my_id)
{
unsigned char max_dist = ((width < height) ? (width) : (height)) / 2;
unsigned char best_dir = NORTH;
for(int i = 0; i < 4; i++)
{
unsigned char dist = 0;
unsigned char curr_direction = CARDINALS[i];
hlt::Location curr_location = start_location;
hlt::Site curr_site = start_site;
while((curr_site.owner == my_id) && (dist < max_dist))
{
curr_location = present_map.getLocation(curr_location, curr_direction);
curr_site = present_map.getSite(curr_location);
dist++;
}
if(dist < max_dist)
{
max_dist = dist;
best_dir = curr_direction;
}
}
return best_dir;
}
float compute_force (hlt::Location original_location, hlt::Site site, hlt::Location location, hlt::GameMap present_map, float dist, int myArea, int my_id)
{
float force = 0.0;
if(site.owner == 0)
{
float production = (float) site.production;
float strength = (float) site.strength;
int num_neighbors = 0;
float neighbor_force = 0.0;
for(int i = 0; i < 4; i++)
{
unsigned char dir = CARDINALS[i];
hlt::Location neighbor_loc = present_map.getLocation(location, dir);
hlt::Site neighbor_site = present_map.getSite(neighbor_loc);
if(neighbor_site.owner != my_id)
{
float neighbor_production = (float) neighbor_site.production;
float neighbor_strength = (float) neighbor_site.strength;
float neighbor_dist = present_map.getDistance(original_location, neighbor_loc);
float neighbor_val = (neighbor_strength ? (neighbor_production / neighbor_strength) : neighbor_production) / (neighbor_dist * neighbor_dist * neighbor_dist * 1);
neighbor_force += neighbor_val;
num_neighbors++;
}
}
force = (((strength ? (production / strength) : production) / (dist * dist * dist * 1)) + neighbor_force) / (num_neighbors + 1);
}
else//that is, if owner is not in (0, myID)
{
force = site.production / (dist * dist * dist) ;
for(int i = 0; i < 4; i++)
{
unsigned char dir = CARDINALS[i];
hlt::Location neighbor_loc = present_map.getLocation(location, dir);
hlt::Site neighbor_site = present_map.getSite(neighbor_loc);
if((neighbor_site.owner != 0) && (neighbor_site.owner != my_id))
{
float neighbor_dist = present_map.getDistance(neighbor_loc, original_location);
float strength = (float) neighbor_site.strength / (neighbor_dist * neighbor_dist * neighbor_dist);
force += strength;
}
}
}
return force;
}
float heuristic(const hlt::Site &curr_site, const hlt::Location &curr_location, hlt::GameMap &present_map, const unsigned char &my_id)
{
if((curr_site.owner == 0) && (curr_site.strength > 0))
{
return static_cast<float>(curr_site.production) / curr_site.strength;
}
else
{
float strength;
if(curr_site.owner == 0)
{
strength = curr_site.production;
}
else
{
strength = 0.0;
}
for(int i = 0; i < 4; i++)
{
int direction = CARDINALS[i];
hlt::Site site = present_map.getSite(curr_location, direction);
if((site.owner != my_id) && (site.owner != 0))
{
strength += site.strength;
}
}
return strength;
}
}
bool is_on_border(const hlt::Location &location, hlt::GameMap present_map, const unsigned char my_id)
{
for(int i = 0; i < 4; i++)
{
unsigned char direction = CARDINALS[i];
hlt::Site curr_site = present_map.getSite(location, direction);
if(curr_site.owner != my_id)
{
return true;
}
}
return false;
}
hlt::Location get_best_target_on_border_location(hlt::GameMap &present_map, unsigned char my_id)
{
float max_val = -1.0;
hlt::Site best_site;
hlt::Location best_loc;
for(unsigned short a = 0; a < present_map.height; a++)
{
for(unsigned short b = 0; b < present_map.width; b++)
{
hlt::Location curr_location = {b, a};
hlt::Site curr_site = present_map.getSite(curr_location);
if (curr_site.owner == my_id)
{
for(int i = 0; i < 4; i++)
{
unsigned char neighbor_direction = CARDINALS[i];
hlt::Location neighbor_location = present_map.getLocation(curr_location, neighbor_direction);
hlt::Site neighbor_site = present_map.getSite(neighbor_location);
if(neighbor_site.owner != my_id)
{
float curr_val = heuristic(neighbor_site, neighbor_location, present_map, my_id);
if(curr_val > max_val)
{
max_val = curr_val;
best_site = neighbor_site;
best_loc = neighbor_location;
}
}
}
}
}
}
return best_loc;
}
unsigned char get_best_target_on_border_direction(hlt::Location &start_location, hlt::Location &goal_location,
hlt::GameMap &present_map, unsigned char my_id, std::map<hlt::Location, int> &reserved_own,
std::map<hlt::Location, int> &reserved_enemy, std::ofstream &output_file)
{
#ifdef DEBUG
output_file << "entered get_best_target_on_border_direction with start" << start_location.x << ", " << start_location.y << ", and goal " << goal_location.x << ", " << goal_location.y << std::endl;
#endif // DEBUG
hlt::Site start_site = present_map.getSite(start_location);
hlt::Site goal_site = present_map.getSite(goal_location);
float dist_start_goal = present_map.getDistance(start_location, goal_location);
#ifdef DEBUG
output_file << "dist_start_goal: " << dist_start_goal << std::endl;
#endif // DEBUG
if((fabs(dist_start_goal - 1.0) < EPSILON))
{
if(start_site.strength <= goal_site.strength)
{
#ifdef DEBUG
output_file << "near target, stand still" << std::endl;
#endif // DEBUG
return STILL;
}
else
{
#ifdef DEBUG
output_file << "near target, capture" << std::endl;
output_file << "goal location: " << goal_location.x << ", " << goal_location.y << std::endl;
#endif // DEBUG
for(int i = 0; i < 4; i++)
{
unsigned char curr_dir = CARDINALS[i];
hlt::Location curr_location = present_map.getLocation(start_location, curr_dir);
#ifdef DEBUG
output_file << "curr location: " << curr_location.x << ", " << curr_location.y << std::endl;
#endif // DEBUG
if((goal_location.x == curr_location.x) && (goal_location.y == curr_location.y) &&
(reserved_enemy[goal_location] + start_site.strength < 255))
{
#ifdef DEBUG
output_file << "return direction: " << curr_dir << std::endl;
#endif // DEBUG
return curr_dir;
}
}
return STILL;//if can't capture the goal due to cap restrictions
}
}
hlt::Location best_location = start_location;
hlt::Site best_site = start_site;
unsigned char best_direction = STILL;
float min_distance = dist_start_goal;
for(int i = 0; i < 4; i++)
{
unsigned char curr_direction = CARDINALS[i];
hlt::Location curr_location = present_map.getLocation(start_location, curr_direction);
hlt::Site curr_site = present_map.getSite(curr_location);
if((curr_site.owner == my_id) and is_on_border(curr_location, present_map, my_id))
{
if(reserved_own[curr_location] + start_site.strength < 255)
{
float curr_distance = present_map.getDistance(curr_location, goal_location);
#ifdef DEBUG
output_file << "curr_distance: " << curr_distance << std::endl;
#endif // DEBUG
if(curr_distance < dist_start_goal)
{
min_distance = curr_distance;
best_location = curr_location;
best_site = present_map.getSite(best_location);
best_direction = curr_direction;
}
}
}
}
if(best_direction != STILL)
{
reserved_own[start_location] = 0;
if(!reserved_own.count(best_location))
{
reserved_own[best_location] = best_site.strength + start_site.strength;
}
else
{
reserved_own[best_location] += start_site.strength;
}
}
#ifdef DEBUG
output_file << "best direction: " << static_cast<unsigned>(best_direction) << std::endl;
#endif // DEBUG
#ifdef DEBUG
output_file << "best location: " << best_location.x << ", " << best_location.y << std::endl;
#endif // DEBUG
#ifdef DEBUG
output_file << "reserved_own[best_location]: " << static_cast<unsigned>(reserved_own[best_location]) <<
", reserved_own[start_location]: " << static_cast<unsigned>(reserved_own[start_location]) << std::endl;
#endif // DEBUG
return best_direction;
}
int main ()
{
std::ofstream output_file;
output_file.open("output.txt");
srand (time (NULL));
unsigned char myID;
hlt::GameMap currMap;
std::set<hlt::Move> moveList;
getInit (myID, currMap);
sendInit ("my_c++_bot_v27_test");
int tick = 0;
std::map<hlt::Move, bool> prevMap;
std::map<hlt::Location, int> reserved_own;
std::map<hlt::Location, int> reserved_enemy;
while(true)
{
#ifdef DEBUG_TIME
output_file << "=============================== " << tick << " =====================================" << std::endl;
#endif // DEBUG
moveList.clear ();
getFrame (currMap);
std::chrono::duration<double, std::milli> think_time = std::chrono::milliseconds(0);
hlt::Location best_target_on_border_location = get_best_target_on_border_location(currMap, myID);
#ifdef DEBUG
output_file << "best_target_on_border_location: " << best_target_on_border_location.x << ", " << best_target_on_border_location.y << std::endl;
#endif // DEBUG
std::set<hlt::Location> border;
int myArea = 0;
for (unsigned short a = 0; a < currMap.height; a ++)
{
for (unsigned short b = 0; b < currMap.width; b ++)
{
hlt::Site curr_site = currMap.getSite ({b, a}, STILL);
if (curr_site.owner == myID)
{
myArea ++;
reserved_own[{b, a}] = curr_site.strength;
#ifdef DEBUG
output_file << "set reserved_own[" << b << ", " << a << "] = " << static_cast<unsigned>(curr_site.strength) << std::endl;
#endif // DEBUG
}
else
{
for (unsigned char i = 1; i < 5; i ++)
if (currMap.getSite ({b, a}, i).owner == myID)
{
border.insert ({b, a});
break;
}
reserved_enemy[{b, a}] = 0;
}
}
}
for (unsigned short a = 0; a < currMap.height; a++)
{
for (unsigned short b = 0; b < currMap.width; b++)
{
std::chrono::high_resolution_clock::time_point start = std::chrono::high_resolution_clock::now();
hlt::Location location = {b, a};
hlt::Site site = currMap.getSite (location, STILL);
unsigned char direction;
if (site.owner == myID)
{
#ifdef DEBUG
output_file << "*************************************CURRENT SQUARE: " << b << ", " << a << std::endl;
output_file << "think_time: " << think_time.count() << std::endl;
#endif // DEBUG
float force_x = 0.0;
float force_y = 0.0;
bool move_found = false;
if(!is_on_border(location, currMap, myID))
{
if(think_time > std::chrono::milliseconds(900))
{
#ifdef DEBUG
output_file << "IS NOT ON BORDER" << std::endl;
output_file << "think_time: " << think_time.count() << std::endl;
#endif // DEBUG
direction = get_nearest_direction(location, site, currMap, currMap.width, currMap.height, myID);
reserved_own[currMap.getLocation(location, direction)] += site.strength;
reserved_own[location] -= site.strength;
move_found = true;
}
else
{
#ifdef DEBUG
output_file << "IS NOT ON BORDER" << std::endl;
output_file << "site strength: " << static_cast<unsigned>(site.strength) << std::endl;
#endif // DEBUG
for (std::set<hlt::Location>::iterator it = border.begin (); it != border.end (); it++)
{
hlt::Site enemy_site = currMap.getSite (*it, STILL);
hlt::Location enemy_location = *it;
if(true)
{
float dist = currMap.getDistance(location, enemy_location);
float angle = currMap.getAngle(location, enemy_location);
float force = compute_force(location, enemy_site, enemy_location, currMap, dist, myArea, myID);
force_x += force * cos(angle);
force_y += force * sin(angle);
}
}
direction = STILL;
if ((site.strength + reserved_own[currMap.getLocation(location, EAST)] < CAP_BOUND) && force_x + force_y > 0 && force_x - force_y > 0)
{
direction = EAST;
#ifdef DEBUG
output_file << "info east: " << static_cast<unsigned>(reserved_own.count(currMap.getLocation(location, direction))) << std::endl;
output_file << "info east before: reserved_own[" << currMap.getLocation(location, direction).x << ", " << currMap.getLocation(location, direction).y << "] = " << static_cast<unsigned>(reserved_own[currMap.getLocation(location, direction)]) << std::endl;
#endif // DEBUG
reserved_own[location] -= site.strength;
reserved_own[currMap.getLocation(location, direction)] += site.strength;
move_found = true;
#ifdef DEBUG
output_file << "info east: " << static_cast<unsigned>(reserved_own.count(currMap.getLocation(location, direction))) << std::endl;
output_file << "info east after: reserved_own[" << currMap.getLocation(location, direction).x << ", " << currMap.getLocation(location, direction).y << "] = " << static_cast<unsigned>(reserved_own[currMap.getLocation(location, direction)]) << std::endl;
#endif // DEBUG
}
else if ((site.strength + reserved_own[currMap.getLocation(location, SOUTH)] < CAP_BOUND) && force_x + force_y > 0 && force_x - force_y < 0)
{
direction = SOUTH;
#ifdef DEBUG
output_file << "info south: " << static_cast<unsigned>(reserved_own.count(currMap.getLocation(location, direction))) << std::endl;
output_file << "info south before: reserved_own[" << currMap.getLocation(location, direction).x << ", " << currMap.getLocation(location, direction).y << "] = " << static_cast<unsigned>(reserved_own[currMap.getLocation(location, direction)]) << std::endl;
#endif // DEBUG
reserved_own[location] -= site.strength;
reserved_own[currMap.getLocation(location, direction)] += site.strength;
move_found = true;
#ifdef DEBUG
output_file << "info south: " << static_cast<unsigned>(reserved_own.count(currMap.getLocation(location, direction))) << std::endl;
output_file << "info south after: reserved_own[" << currMap.getLocation(location, direction).x << ", " << currMap.getLocation(location, direction).y << "] = " << static_cast<unsigned>(reserved_own[currMap.getLocation(location, direction)]) << std::endl;
#endif // DEBUG
}
else if ((site.strength + reserved_own[currMap.getLocation({b, a}, WEST)] < CAP_BOUND) && force_x + force_y < 0 && force_x - force_y < 0)
{
direction = WEST;
#ifdef DEBUG
output_file << "info west: " << static_cast<unsigned>(reserved_own.count(currMap.getLocation(location, direction))) << std::endl;
output_file << "info west before: reserved_own[" << currMap.getLocation(location, direction).x << ", " << currMap.getLocation(location, direction).y << "] = " << static_cast<unsigned>(reserved_own[currMap.getLocation(location, direction)]) << std::endl;
#endif // DEBUG
reserved_own[location] -= site.strength;
reserved_own[currMap.getLocation(location, direction)] += site.strength;
move_found = true;
#ifdef DEBUG
output_file << "info west: " << static_cast<unsigned>(reserved_own.count(currMap.getLocation(location, direction))) << std::endl;
output_file << "info west after: reserved_own[" << currMap.getLocation(location, direction).x << ", " << currMap.getLocation(location, direction).y << "] = " << static_cast<unsigned>(reserved_own[currMap.getLocation(location, direction)]) << std::endl;
#endif // DEBUG
}
else if ((site.strength + reserved_own[currMap.getLocation({b, a}, NORTH)] < CAP_BOUND) && force_x + force_y < 0 && force_x - force_y > 0)
{
direction = NORTH;
#ifdef DEBUG
output_file << "info north: " << static_cast<unsigned>(reserved_own.count(currMap.getLocation(location, direction))) << std::endl;
output_file << "info north before: reserved_own[" << currMap.getLocation(location, direction).x << ", " << currMap.getLocation(location, direction).y << "] = " << static_cast<unsigned>(reserved_own[currMap.getLocation(location, direction)]) << std::endl;
#endif // DEBUG
reserved_own[location] -= site.strength;
reserved_own[currMap.getLocation(location, direction)] += site.strength;
move_found = true;
#ifdef DEBUG
output_file << "info north: " << static_cast<unsigned>(reserved_own.count(currMap.getLocation(location, direction))) << std::endl;
output_file << "info north after: reserved_own[" << currMap.getLocation(location, direction).x << ", " << currMap.getLocation(location, direction).y << "] = " << static_cast<unsigned>(reserved_own[currMap.getLocation(location, direction)]) << std::endl;
#endif // DEBUG
}
#ifdef DEBUG
output_file << "found direction: " << static_cast<unsigned>(direction) << std::endl;
output_file << "location: " << currMap.getLocation(location, direction).x << ", " << currMap.getLocation(location, direction).y << std::endl;
output_file << "info after: " << static_cast<unsigned>(reserved_own.count(currMap.getLocation(location, direction))) << std::endl;
output_file << "info after: " << static_cast<unsigned>(reserved_own[currMap.getLocation(location, direction)]) << std::endl;
#endif // DEBUG
}
if(site.strength < 5 * site.production)
{
#ifdef DEBUG
output_file << "too weak, stand still" << std::endl;
#endif // DEBUG
if(move_found)
{
reserved_own[currMap.getLocation(location, direction)] -= site.strength;
reserved_own[location] += site.strength;
}
direction = STILL;
move_found = true;
}
else if(!move_found)
{
#ifdef DEBUG
output_file << "move not found" << std::endl;
#endif // DEBUG
}
}
else//that is if our square is on border
{
#ifdef DEBUG
output_file << "IS ON BORDER" << std::endl;
#endif // DEBUG
bool move_found = false;
double max_val = -1.0;
direction = 123;
hlt::Site best_site;
hlt::Location best_location;
#ifdef DEBUG
output_file << "looking for the best target" << std::endl;
#endif // DEBUG
for(int i = 0; i < 4; i++)
{
unsigned char curr_direction = CARDINALS[i];
hlt::Location curr_location = currMap.getLocation(location, curr_direction);
hlt::Site curr_site = currMap.getSite(curr_location);
if(curr_site.owner != myID)
{
float curr_val = heuristic(curr_site, curr_location, currMap, myID);
#ifdef DEBUG
output_file << "cardinals index: " << i << std::endl;
output_file << "curr location: " << curr_location.x << ", " << curr_location.y << std::endl;
output_file << "curr val: " << curr_val << ", max val: " << max_val << std::endl;
#endif // DEBUG
if((curr_val > max_val) && (reserved_enemy[curr_location] + site.strength < CAP_BOUND))
{
max_val = curr_val;
direction = curr_direction;
best_site = curr_site;
best_location = curr_location;
#ifdef DEBUG
output_file << "best direction is now " << static_cast<unsigned>(direction) << std::endl;
#endif // DEBUG
}
}
}
#ifdef DEBUG
output_file << "info before: " << static_cast<unsigned>(site.strength) << ", " << static_cast<unsigned>(best_site.strength)
<< ", " << static_cast<unsigned>(reserved_enemy[best_location]) << ", " <<
reserved_enemy.count(best_location) << std::endl;
#endif // DEBUG
if((site.strength > best_site.strength) && (reserved_enemy[best_location] + site.strength < CAP_BOUND))
{
#ifdef DEBUG
output_file << "capture best target, dir: " << static_cast<unsigned>(direction) << std::endl;
#endif // DEBUG
reserved_enemy[best_location] = (reserved_enemy.count(best_location) == 0) ? (reserved_enemy[best_location] = site.strength) : (reserved_enemy[best_location] += site.strength);
reserved_own[location] = 0;
move_found = true;
}
else if(site.strength < 5 * site.production)
{
#ifdef DEBUG
output_file << "too weak, stand still" << std::endl;
#endif // DEBUG
direction = STILL;
move_found = true;
}
if(!move_found)
{
#ifdef DEBUG
output_file << "move not found" << std::endl;
#endif // DEBUG
direction = get_best_target_on_border_direction(location, best_target_on_border_location, currMap,
myID, reserved_own, reserved_enemy, output_file);
}
}
hlt::Move move = {{b, a}, direction};
moveList.insert (move);
}
std::chrono::high_resolution_clock::time_point end = std::chrono::high_resolution_clock::now();
think_time += (end - start);
}
}
tick++;
sendFrame (moveList);
}
output_file.close();
return 0;
}