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chess.hpp
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chess.hpp
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#include <SFML/Graphics.hpp>
#include <SFML/Audio.hpp>
#include "chess_moves.hpp"
#include "settings.hpp"
class Chess{
private:
sf::Music caputreSound, moveSound;
sf::Texture img[13];
sf::Sprite sprite[32];
int boardSize = SCREEN_HEIGHT;
int pieceW = boardSize/8; // if change size
std::vector<int> v = {};
sf::Vector2i offset = {(int)(SCREEN_WIDTH-boardSize)/2,0};
char currentColor = 'K';
std::string board = "rnbqkbnrpppppppp--------------------------------PPPPPPPPRNBQKBNR";
std::string board_copy = board;
int active = -1;
sf::CircleShape canMoveSquare = sf::CircleShape(20);
std::vector<int> allPiecesMoves[64];
public:
Chess(){
std::string imgLoc = "..\\img";
if(!img[0].loadFromFile(imgLoc+"\\board.png") or
!img[1].loadFromFile(imgLoc+"\\wk.png") or
!img[2].loadFromFile(imgLoc+"\\wq.png") or
!img[3].loadFromFile(imgLoc+"\\wr.png") or
!img[4].loadFromFile(imgLoc+"\\wbi.png") or
!img[5].loadFromFile(imgLoc+"\\wkn.png") or
!img[6].loadFromFile(imgLoc+"\\wp.png") or
!img[7].loadFromFile(imgLoc+"\\bk.png") or
!img[8].loadFromFile(imgLoc+"\\bq.png") or
!img[9].loadFromFile(imgLoc+"\\br.png") or
!img[10].loadFromFile(imgLoc+"\\bbi.png") or
!img[11].loadFromFile(imgLoc+"\\bkn.png") or
!img[12].loadFromFile(imgLoc+"\\bp.png")){
printf("Cant load image");
}
else{
sprite[0].setPosition(offset.x,offset.y);
sprite[0].setTexture(img[0]);
sprite[0].setScale(boardSize/sprite[0].getLocalBounds().width,boardSize/sprite[0].getLocalBounds().height);
for(int i=1;i<13;i++){
sprite[i].setTexture(img[i]);
sprite[i].setScale(boardSize/(8*sprite[i].getLocalBounds().width),boardSize/(8*sprite[i].getLocalBounds().height));
}
}
if(!caputreSound.openFromFile(imgLoc+"\\capture.wav")){
printf("cant load sound files");
}
if(!moveSound.openFromFile(imgLoc+"\\move-self.wav")){
printf("cant load sound files");
}
}
void set_board_size(int newSize){
boardSize = newSize;
pieceW = boardSize/8;
offset.x = (int)(SCREEN_WIDTH-boardSize)/2;
sprite[0].setPosition(offset.x,offset.y);
sprite[0].setScale(boardSize/sprite[0].getLocalBounds().width,boardSize/sprite[0].getLocalBounds().height);
for(int i=1;i<13;i++)
sprite[i].setScale(boardSize/(8*sprite[i].getLocalBounds().width),boardSize/(8*sprite[i].getLocalBounds().height));
}
void resetBoard(){
board = "rnbqkbnrpppppppp--------------------------------PPPPPPPPRNBQKBNR";
currentColor = 'K';
board_copy = board;
}
sf::Sprite get_sprite(char piece){
switch(piece){
case 'K':
return sprite[1];
case 'Q':
return sprite[2];
case 'R':
return sprite[3];
case 'B':
return sprite[4];
case 'N':
return sprite[5];
case 'P':
return sprite[6];
case 'k':
return sprite[7];
case 'q':
return sprite[8];
case 'r':
return sprite[9];
case 'b':
return sprite[10];
case 'n':
return sprite[11];
case 'p':
return sprite[12];
case '-':
break;
default:
printf("Invalid string got %c",piece);
}
}
void draw_pieces( sf::RenderWindow& window, std::string board_copy){
window.draw(sprite[0]);
sf::Sprite tmpSprite;
for(int j=0;j<8;j++){
for(int i=0;i<8;i++){
if(board_copy[j*8+i] == '+'){
if(board[j*8+i] != '-'){
tmpSprite = get_sprite(board[j*8+i]);
tmpSprite.setPosition(offset.x+pieceW*i,offset.y+pieceW*j);
window.draw(tmpSprite);
}
canMoveSquare.setFillColor(sf::Color(255,0,0,200));
canMoveSquare.setPosition(offset.x+(pieceW)/2-20+pieceW*i,offset.y+(pieceW)/2-20+pieceW*j);
window.draw(canMoveSquare);
}
else if(board_copy[j*8+i] != '-'){
tmpSprite = get_sprite(board_copy[j*8+i]);
tmpSprite.setPosition(offset.x+pieceW*i,offset.y+pieceW*j);
window.draw(tmpSprite);
}
}
}
}
bool in_checkmate(char color,std::string board){
std::vector<int> tmp;
bool checkmate = true;
for(int i=0;i<64;i++){
allPiecesMoves[i].clear();
if(is_samecolor(board[i], color)){
allPiecesMoves[i] = get_possible_moves(i, board, color);
if(allPiecesMoves[i].size() > 0) checkmate = false;
}
}
return checkmate;
}
bool in_check(char color ,std::string board){
int i;
for(i=0;i<board.length();i++){
if(color == board[i])
break;
}
std::vector<int> posb = rook_moves(i, board);
for(int n:posb){
if(isalpha(board[n])){
if( !is_black(color)){
if(board[n] == 'q' or board[n] == 'r') return true;
}else if(board[n] == 'Q' or board[n] == 'R') return true;
}
}
posb = bishop_moves(i, board);
for(int n:posb){
if(isalpha(board[n])){
if( !is_black(color)){
if(board[n] == 'q' or board[n] == 'b') return true;
}else if(board[n] == 'Q' or board[n] == 'B') return true;
}
}
posb = knight_moves(i, board);
for(int n:posb){
if(isalpha(board[n])){
if( !is_black(color)){
if(board[n] == 'n') return true;
}else if(board[n] == 'N') return true;
}
}
return false;
}
std::vector<int> get_possible_moves(int pos, std::string board,char color){
std::vector<int> v0,v1;
if(!is_samecolor(color, board[pos])) return {};
switch(board[pos]){
case 'r':
case 'R':
v0 = rook_moves(pos, board);
break;
break;
case 'b':
case 'B':
v0= bishop_moves(pos, board);
break;
case 'n':
case 'N':
v0= knight_moves(pos,board);
break;
case 'K':
case 'k':
v0= king_moves(pos,board);
break;
case 'p':
case 'P':
v0= pawn_moves(pos, board);
break;
case 'q':
case 'Q':
v0 = rook_moves(pos, board); v1 = bishop_moves(pos, board);
v0.insert(v0.end(),v1.begin(),v1.end());
break;
default:
v0= {};
}
char king = is_black(board[pos])?'k':'K';
v1.clear();
for(int n=0;n<v0.size();n++){
std::string tmpBoard = board;
tmpBoard[v0[n]] = tmpBoard[pos];
tmpBoard[pos] = '-';
if(!in_check(king, tmpBoard))
v1.push_back(v0[n]);
}
return v1;
}
void move_piece(int from, int to){
if(isalpha(board[to])) caputreSound.play();
else moveSound.play();
board[to] = board[from];
board[from]='-';
active = -1;
currentColor = currentColor=='K'?'k':'K';
}
bool run(sf::RenderWindow& window){
sf::Event event;
if(in_checkmate(currentColor, board)){
std::cout<<"Game Over";
return true;
}
sf::FloatRect view;
while(window.pollEvent(event)){
// "close requested" event: we close the window
switch(event.type){
case sf::Event::Closed :
window.close();
case sf::Event::Resized:
SCREEN_WIDTH = event.size.width;
SCREEN_HEIGHT = event.size.height;
view = sf::FloatRect(0, 0, event.size.width, event.size.height);
window.setView(sf::View(view));
set_board_size(SCREEN_HEIGHT);
break;
case sf::Event::MouseButtonReleased:
sf::Vector2i pos = (sf::Mouse::getPosition(window)-offset)/ pieceW;
if(active > -1){
if(std::find(v.begin(),v.end(),pos.y *8 + pos.x) != v.end()){
move_piece(active, pos.y *8 + pos.x);
board_copy=board;
caputreSound.setPlayingOffset(sf::seconds(0.f));
moveSound.setPlayingOffset(sf::seconds(0.f));
break;
}
} if(isalpha(board[pos.y *8 + pos.x]) and is_samecolor(board[pos.y *8 + pos.x], currentColor)){
board_copy = board;
active = pos.y *8 + pos.x;
v = allPiecesMoves[pos.y *8 + pos.x];
for(int i: v){
board_copy[i] = '+';
}
}else {active = -1;board_copy=board;}
break;
}
}
window.clear(sf::Color(255,255,255));
window.draw(sprite[0]);
draw_pieces(window, board_copy);//"rnbqkbnrpppppppp-------------------------------PPPPPPPPRNBKQKBNR"
return false;
}
};