//---------------------------------------------------------------------------
const double ChessGame::AttributeValue(
const ChessMove& move) const
{
double value = 0.0;
const int y1 = move.y1;
const int x1 = move.x1;
const int y2 = move.y2;
const int x2 = move.x2;
const ChessPiece piece = mBoard.GetPiece(x1,y1);
assert(piece.IsNull()==false);
//const EnumChessPieceColor color = piece.GetColor();
if (mBoard.GetPiece(x2,y2).IsNull()==false)
{
//An expensive piece should not take a cheaper piece
//The more expensive the piece to move,
// the less motivated it will be to take a piece
if (piece.GetType()==king ) { value-=100.0; }
if (piece.GetType()==queen ) { value-= 9.0; }
if (piece.GetType()==rook ) { value-= 4.0; }
if (piece.GetType()==bishop) { value-= 2.0; }
if (piece.GetType()==knight) { value-= 2.0; }
if (piece.GetType()==pawn ) { value-= 0.0; }
//The more expensive the piece to take,
// the more motivated it will be to take it
const ChessPiece victim = mBoard.GetPiece(x2,y2);
if (victim.GetType()==king ) { value+=100000.0; }
if (victim.GetType()==queen ) { value+=10.0; }
if (victim.GetType()==rook ) { value+= 5.0; }
if (victim.GetType()==bishop) { value+= 3.0; }
if (victim.GetType()==knight) { value+= 3.0; }
if (victim.GetType()==pawn ) { value+= 1.0; }
}
return value;
}
void GamePresenter::drawBoard() {
SDL_RenderClear(main_renderer);
SDL_RenderCopy(main_renderer,background,NULL,&fullscreen);
SDL_Rect currentField;
currentField.h = SCREEN_HEIGHT/8;
currentField.w = SCREEN_WIDTH/8;
currentField.y = 0;
for(int a = 7; a >= 0; a--){
currentField.x = 0;
for(int b = 0; b<8; b++){
ChessPiece* CurrentPiece = currentgame->getPieceAtLocation(a*8 + b);
if (CurrentPiece)
SDL_RenderCopy(main_renderer,piecesheet,&pieces[getSpriteForPiece(CurrentPiece->GetType(),CurrentPiece->GetColor())],¤tField);
currentField.x += currentField.w;
}
currentField.y += currentField.h;
}
if (currentgame->isGameOver()){
SDL_SetTextureAlphaMod(piecesheet,160);
if (currentgame->getResult() == "White wins"){
SDL_RenderCopy(main_renderer,piecesheet,&pieces[getSpriteForPiece('K','W')],&fullscreen);
}
if (currentgame->getResult() == "Black wins"){
SDL_RenderCopy(main_renderer,piecesheet,&pieces[getSpriteForPiece('K','B')],&fullscreen);
}
if (currentgame->getResult() == "Draw"){
SDL_Rect lefthalf;
lefthalf.h=SCREEN_HEIGHT;
lefthalf.w=SCREEN_WIDTH/2;
lefthalf.x=0;
lefthalf.y=0;
SDL_Rect righthalf(lefthalf);
righthalf.x=SCREEN_WIDTH/2;
SDL_Rect halfwhiteking=pieces[getSpriteForPiece('K','W')];
SDL_Rect halfblackking=pieces[getSpriteForPiece('K','B')];
halfwhiteking.w/=2;
halfblackking.w/=2;
halfblackking.x+=halfblackking.w;
SDL_RenderCopy(main_renderer,piecesheet,&halfwhiteking,&lefthalf);
SDL_RenderCopy(main_renderer,piecesheet,&halfblackking,&righthalf);
}
SDL_SetTextureAlphaMod(piecesheet,255);
}
SDL_RenderPresent(main_renderer);
}