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searcher.hpp
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searcher.hpp
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#ifndef SEARCHER_H
#define SEARCHER_H
#include "board.hpp"
#include "evaluator.hpp"
#include "utility.hpp"
namespace yrq {
struct move_action {
board bd;
board::piece from;
board::piece to;
board::piece arrow;
move_action() {};
move_action(board _bd,
board::piece _from,
board::piece _to,
board::piece _arrow) {
bd = _bd;
from = _from;
to = _to;
arrow = _arrow;
}
};
move_action make_move(board bd, board::piece from, board::piece to, board::piece arrow) {
bd.get_arrow_map()[from.x()][from.y()] = 0;
bd.get_arrow_map()[to.x()][to.y()] = 1;
bd.get_arrow_map()[arrow.x()][arrow.y()] = 1;
return { bd,from,to,arrow };
}
class greedy_searcher {
std::array<evaluator::player, 2> players;
board bd;
public:
greedy_searcher() {
bd.get_arrow_map() = bitmap(0x2400810000810024);
players[0] = {
board::piece{2, 0},
board::piece{0, 2},
board::piece{5, 0},
board::piece{7, 2} };
players[1] = {
board::piece{0, 5},
board::piece{2, 7},
board::piece{5, 7},
board::piece{7, 5} };
}
~greedy_searcher() {};
void set_board(board bd) {
this->bd = bd;
}
void set_players(std::array<evaluator::player, 2> players) {
this->players = players;
}
move_action search_and_select(const std::vector<move_action>& mvs = {}) {
_apply_all_move_actions(mvs);
move_action mva;
double current_evaluation = -1000.0;
for (int i = 0; i < 4; ++i) {
auto res = _possible_moves(players[0][i]);
for (int j = 0; j < res.size(); ++j) {
evaluator ev(res[j].bd);
ev.players[0] = players[0];
ev.players[1] = players[1];
double evaluation = ev.evaluate();
if (evaluation > current_evaluation) {
current_evaluation = evaluation;
mva = res[j];
}
}
}
mva.bd.get_arrow_map().output_xy();
return mva;
}
private:
void _apply_move_action(const move_action& mv) {
for (int i = 0; i < 4; ++i)
if (mv.from == players[0][i]) {
players[0][i] = mv.to;
bd = mv.bd;
}
}
void _apply_all_move_actions(const std::vector<move_action>& mvs) {
for (const auto& mv : mvs)
_apply_move_action(mv);
}
std::vector<move_action> _possible_arrow_placements(std::vector<move_action>& mvs) {
std::vector<move_action> res;
for (auto& mv : mvs) {
uint8_t x = mv.to.x();
uint8_t y = mv.to.y();
board nbd = mv.bd;
for (int i = x + 1; i < 8; ++i) {
if (mv.bd.is_obstacle((uint8_t)i, y)) break;
nbd.get_arrow_map()[(uint8_t)i][y] = 1;
res.push_back({ nbd, mv.from, mv.to, board::piece{(uint8_t)i,y} });
nbd.get_arrow_map()[i][y] = 0;
}
for (int i = x - 1; i >= 0; --i) {
if (mv.bd.is_obstacle((uint8_t)i, y)) break;
nbd.get_arrow_map()[(uint8_t)i][y] = 1;
res.push_back({ nbd, mv.from,mv.to,board::piece{(uint8_t)i,y} });
nbd.get_arrow_map()[i][y] = 0;
}
for (int i = y + 1; i < 8; ++i) {
if (bd.is_obstacle(x, (uint8_t)i)) break;
nbd.get_arrow_map()[x][(uint8_t)i] = 1;
res.push_back({ nbd, mv.from,mv.to,board::piece{x,(uint8_t)i} });
nbd.get_arrow_map()[x][(uint8_t)i] = 0;
}
for (int i = y - 1; i >= 0; --i) {
if (bd.is_obstacle(x, i)) break;
nbd.get_arrow_map()[x][i] = 1;
res.push_back({ nbd, mv.from,mv.to,board::piece{x,(uint8_t)i} });
nbd.get_arrow_map()[x][i] = 0;
}
for (int i = x + 1, j = y + 1; i < 8 && j < 8; ++i, ++j) {
if (bd.is_obstacle((uint8_t)i, (uint8_t)j)) break;
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 1;
res.push_back({ nbd, mv.from,mv.to,board::piece{(uint8_t)i,(uint8_t)j} });
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 0;
}
for (int i = x - 1, j = y + 1; i >= 0 && j < 8; --i, ++j) {
if (bd.is_obstacle((uint8_t)i, (uint8_t)j)) break;
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 1;
res.push_back({ nbd, mv.from,mv.to,board::piece{(uint8_t)i,(uint8_t)j} });
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 0;
}
for (int i = x + 1, j = y - 1; i < 8 && j >= 0; ++i, --j) {
if (bd.is_obstacle((uint8_t)i, (uint8_t)j)) break;
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 1;
res.push_back({ nbd, mv.from,mv.to,board::piece{(uint8_t)i,(uint8_t)j} });
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 0;
}
for (int i = x - 1, j = y - 1; i >= 0 && j >= 0; --i, --j) {
if (bd.is_obstacle(i, j)) break;
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 1;
res.push_back({ nbd, mv.from,mv.to,board::piece{(uint8_t)i,(uint8_t)j} });
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 0;
}
}
return res;
}
std::vector<move_action> _possible_moves(board::piece amazon) {
std::vector<move_action> res;
uint8_t x = amazon.x();
uint8_t y = amazon.y();
board nbd = bd;
nbd.get_arrow_map()[x][y] = 0;
for (int i = x + 1; i < 8; ++i) {
if (bd.is_obstacle((uint8_t)i, y)) break;
nbd.get_arrow_map()[(uint8_t)i][y] = 1;
res.push_back({ nbd,board::piece{x,y},board::piece{(uint8_t)i,y},board::piece{} });
nbd.get_arrow_map()[(uint8_t)i][y] = 0;
}
for (int i = x - 1; i >= 0; --i) {
if (bd.is_obstacle((uint8_t)i, y)) break;
nbd.get_arrow_map()[(uint8_t)i][y] = 1;
res.push_back({ nbd,board::piece{x,y},board::piece{(uint8_t)i,y},board::piece{} });
nbd.get_arrow_map()[(uint8_t)i][y] = 0;
}
for (int i = y + 1; i < 8; ++i) {
if (bd.is_obstacle(x, (uint8_t)i)) break;
nbd.get_arrow_map()[x][(uint8_t)i] = 1;
res.push_back({ nbd,board::piece{x,y},board::piece{x,(uint8_t)i},board::piece{} });
nbd.get_arrow_map()[x][(uint8_t)i] = 0;
}
for (int i = y - 1; i >= 0; --i) {
if (bd.is_obstacle(x, (uint8_t)i)) break;
nbd.get_arrow_map()[x][(uint8_t)i] = 1;
res.push_back({ nbd,board::piece{x,y},board::piece{x,(uint8_t)i},board::piece{} });
nbd.get_arrow_map()[x][(uint8_t)i] = 0;
}
for (int i = x + 1, j = y + 1; i < 8 && j < 8; ++i, ++j) {
if (bd.is_obstacle((uint8_t)i, (uint8_t)j)) break;
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 1;
res.push_back({ nbd,board::piece{x,y},board::piece{(uint8_t)i,(uint8_t)j},board::piece{} });
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 0;
}
for (int i = x - 1, j = y + 1; i >= 0 && j < 8; --i, ++j) {
if (bd.is_obstacle((uint8_t)i, (uint8_t)j)) break;
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 1;
res.push_back({ nbd,board::piece{x,y},board::piece{(uint8_t)i,(uint8_t)j},board::piece{} });
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 0;
}
for (int i = x + 1, j = y - 1; i < 8 && j >= 0; ++i, --j) {
if (bd.is_obstacle((uint8_t)i, (uint8_t)j)) break;
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 1;
res.push_back({ nbd,board::piece{x,y},board::piece{(uint8_t)i,(uint8_t)j},board::piece{} });
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 0;
}
for (int i = x - 1, j = y - 1; i >= 0 && j >= 0; --i, --j) {
if (bd.is_obstacle((uint8_t)i, (uint8_t)j)) break;
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 1;
res.push_back({ nbd,board::piece{x,y},board::piece{(uint8_t)i,(uint8_t)j},board::piece{} });
nbd.get_arrow_map()[(uint8_t)i][(uint8_t)j] = 0;
}
return _possible_arrow_placements(res);
}
};
}
#endif