1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308
|
class Checkers : public Board
{
private:
string validMove(Position origin) {
if(coord[lastMove.coordX][lastMove.coordY].getType() != "default")
return "occupied";
//Check if piece is moving north
if(origin.playerID == 2 || coord[origin.coordX][origin.coordY].getType() == "King"){
//Check Jump Move North West
if(origin.coordX-2 == lastMove.coordX && origin.coordY-2 == lastMove.coordY && coord[origin.coordX-1][origin.coordY-1].getPlayer() == (origin.playerID%2)+1){
return "validJumpNW";
}
//Check Jump Move North East
if(origin.coordX+2 == lastMove.coordX && origin.coordY-2 == lastMove.coordY && coord[origin.coordX+1][origin.coordY-1].getPlayer() == (origin.playerID%2)+1){
return "validJumpNE";
}
//Check Single Move North East
if(origin.coordX+1 == lastMove.coordX && origin.coordY-1 == lastMove.coordY){
return "valid";
}
//Check Single Move North West
if(origin.coordX-1 == lastMove.coordX && origin.coordY-1 == lastMove.coordY)
return "valid";
}
//Check if the piece is free to move South
if(origin.playerID == 1 || coord[origin.coordX][origin.coordY].getType() == "King"){
//Check Jump Move South East
if(origin.coordX+2 == lastMove.coordX && origin.coordY+2 == lastMove.coordY && coord[origin.coordX+1][origin.coordY+1].getPlayer() == (origin.playerID%2)+1){
return "validJumpSE";
}
//Check Jump Move South West
if(origin.coordX-2 == lastMove.coordX && origin.coordY+2 == lastMove.coordY && coord[origin.coordX-1][origin.coordY+1].getPlayer() == (origin.playerID%2)+1){
return "validJumpSW";
}
//Check Single Move South East
if(origin.coordX+1 == lastMove.coordX && origin.coordY+1 == lastMove.coordY)
return "valid";
//Check Single Move South West
if(origin.coordX-1 == lastMove.coordX && origin.coordY+1 == lastMove.coordY)
return "valid";
}
return "invalid";
}
void statusMessage (string message) {
move(10,0);
clrtoeol();
mvprintw(10,0, message.c_str());
refresh();
}
bool makeMove(){ //take the destination, origin and owner
getSelection();
Position origin = lastMove;
if(coord[origin.coordX][origin.coordY].getPlayer() != origin.playerID) {
statusMessage("That's not your piece");
return false;
}
getSelection();
string move = validMove(origin);
if(move.substr(0,5) != "valid" ) {
if(move == "occupied") {
statusMessage("There is already a piece in that square!");
return false;
}
if(move == "invalid") {
statusMessage("Invalid move");
return false;
}
getSelection();
move = validMove(origin);
}
if(move == "valid") {
coord[lastMove.coordX][lastMove.coordY] = coord[origin.coordX][origin.coordY];
removePiece(origin);
if((lastMove.coordY == 0 && lastMove.playerID == 2) || (lastMove.coordY == 7 && lastMove.playerID == 1))
coord[lastMove.coordX][lastMove.coordY].changeToKing();
return true;
}
if(move.substr(0,9) == "validJump") {
string direction = move.substr(9,2);
coord[lastMove.coordX][lastMove.coordY] = coord[origin.coordX][origin.coordY];
removePiece(origin);
if((lastMove.coordY == 0 && lastMove.playerID == 2) || (lastMove.coordY == 7 && lastMove.playerID == 1))
coord[lastMove.coordX][lastMove.coordY].changeToKing();
Position middle = Position();
if(direction == "NW") {
middle.coordX = lastMove.coordX+1;
middle.coordY = lastMove.coordY+1;
}
else if(direction == "NE") {
middle.coordX = lastMove.coordX-1;
middle.coordY = lastMove.coordY+1;
}
else if(direction == "SW") {
middle.coordX = lastMove.coordX+1;
middle.coordY = lastMove.coordY-1;
}
else if(direction == "SE") {
middle.coordX = lastMove.coordX-1;
middle.coordY = lastMove.coordY-1;
}
else
return false;
removePiece(middle);
return true;
}
return false;
}
/* This method is of boolean type, it will take in the destination of the intended new Piece as a parameter and return true if the Piece is added and False if the Piece is not added
*/
int isGameOver() {
int player1Count =0;
int player2Count =0;
for(int i=0; i<8;i++){
for(int j=0; j<8; j++){
if(coord[i][j].getPlayer() == 1)
player1Count++;
if(coord[i][j].getPlayer() == 2)
player2Count++;
}
}
if(player1Count < 1){
mvprintw(17,15, "Player 1 has : %i many pieces left", player1Count);
return 1;
}
if (player2Count < 1) {
mvprintw(18,15, "Player 2 has : %i pieces left", player2Count);
return 1;
}
for(int j=0; j<8;j++){
for(int i=0; i<8; i++){
//Find pieces owned by the other player and see if they are free to move
if(coord[i][j].getPlayer() == (lastMove.playerID%2)+1){
//Check if the piece is free to move South
if(lastMove.playerID == 2 || coord[i][j].getType() == "King"){
//Check South East
if(i+1 < 8 && j+1 < 8 && coord[i+1][j+1].getType() == "default"){
return 0;
}
//Check South West
if(i-1 > 0 && j+1 < 8 && coord[i-1][j+1].getType() == "default"){
return 0;
}
}
//Check if the piece is free to move North
if(lastMove.playerID == 1 || coord[i][j].getType() == "King"){
//Check North East
if(i+1 < 8 && j-1 > 0 && coord[i+1][j-1].getType() == "default"){
return 0;
}
//Check North West
if(i-1 > 0 && j-1 > 0 && coord[i-1][j-1].getType() == "default"){
return 0;
}
}
}
}
}
return 1;
}
void getSelection()
{
keypad(stdscr, TRUE); //Enable extended keys for the standard screen
int key;
drawScreen();
do{
key = getch(); //Capture a key
switch(key) {
case KEY_UP:
if(lastMove.coordY == 0)
lastMove.coordY = 7;
else
lastMove.coordY = lastMove.coordY-1;
break;
case KEY_DOWN:
lastMove.coordY = (lastMove.coordY+1)%8;
break;
case KEY_LEFT:
if(lastMove.coordX == 0)
lastMove.coordX = 7;
else
lastMove.coordX = lastMove.coordX-1;
break;
case KEY_RIGHT:
lastMove.coordX = (lastMove.coordX+1)%8;
break;
}
drawScreen(); //Draw current contents of coord to the screen
} while(key != '\n'); //Do the above until enter or return is pressed
drawScreen();
};
/*
This method will scan the coord for winning or draw conditions. If a winning condition is met it will set the winner integer to the id of the winning player or will set the winner integer to -1 in the case of a draw. This method will return the winning player as an int. This is a pure virtual method.
*/
public:
Checkers() {
//Prepare the coord by placing starting pieces
//Put the black pieces on the board
int j=0;
for(int i=0;i<3;i++){
for(j=(j+1)%2; j<8; j=j+2){
coord[j][i] = Piece("Checker", 1);
}
}
//Put the white pieces on the board
for(int i=5;i<8;i++){
for(j=(j+1)%2; j<8; j=j+2){
coord[j][i] = Piece("Checker", 2);
}
}
}
void startGame() {
while(true) {
mvprintw(4,0, "Player %i it is your turn", lastMove.playerID);
refresh();
if(makeMove())
lastMove.playerID=(lastMove.playerID%2)+1;
if(isGameOver() == 1){
drawScreen();
mvprintw(15,15, "The game is over 2 , congratulations Player %i", lastMove.playerID);
refresh();
napms(3000);
break;
}
}
}
/*
This will define which player is currently active, the purpose of this is for games like Snakes & Ladders in which the turn order can be extended. This is a pure virtual method.
*/
void drawScreen() {
int colour=2;
move(5, 0);
for(int i=0; i< 8; i++) {
colour=(colour%2)+1;
for(int j=0; j< 8; j++){
colour=(colour%2)+1;
attrset(COLOR_PAIR(colour));
if(i == lastMove.coordY && j == lastMove.coordX)
attrset(COLOR_PAIR(9));
else if(coord[j][i].getPlayer() == 1)
attrset(COLOR_PAIR(7));
else if(coord[j][i].getPlayer() == 2)
attrset(COLOR_PAIR(8));
if(coord[j][i].getType() == "Checker")
addstr(" O ");
else if(coord[j][i].getType() == "King")
addstr(" K ");
else
addstr(" ");
}
addstr("\n");
}
attrset(COLOR_PAIR(1));
refresh();
}
};
|