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game state 1 added
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@sos13004
sos13004 committed Apr 5, 2017
1 parent 6570081 commit b0a22d0
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393 changes: 393 additions & 0 deletions src/GameState1.java
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import java.util.ArrayList;
import java.util.List;

public class GameState1 implements CheckersGameState{

public static void main(String[] args){
//testing some methods
GameState1 game = new GameState1(); //initial game state
game.printState(); //print the state
List<Move> moves = game.actions();
System.out.println();
System.out.println("Available Moves:");
for(Move m : moves){
m.printMove();
}
System.out.println("\n" + "Test1: Move(2,1) to (3,0) result (moving black piece foward");
CheckersGameState result = game.result(new Move(2,1,3,0,false));
result.printState();
List<Move> moves2 = result.actions();
System.out.println();
System.out.println("Available Moves:");
for(Move m : moves2){
m.printMove();
}
System.out.println("\n" + "Test2: Move(5,2) to (4,1) result (moving white piece foward");
CheckersGameState result2 = result.result(new Move(5,2,4,1,false));
result2.printState();
List<Move> moves3 = result2.actions();
System.out.println();
System.out.println("Available Moves:");
for(Move m3 : moves3){
m3.printMove();
}
System.out.println("\n" + "Test3: Move(3,0) to (5,2) result (jumping and capturing a piece)");
CheckersGameState result3 = result2.result(new Move(3,0,5,2,true));
result3.printState();

String[][] b = new String[8][8];
b[1][0] = "w";
b[0][3] = "b";
b[0][5] = "b";
GameState1 g = new GameState1(b,false);
g.printState();
List<Move> m4 = g.actions();
for(Move m : m4){
m.printMove();
}

System.out.println("\n" + "Test4: Move(1,0) to (0,1) result (creating a king)");
CheckersGameState g2 = g.result(new Move(1,0,0,1,false));
g2.printState();

String[][] b2 = new String[8][8];
b2[4][2] = "W";
b2[3][1] = "b";
b2[3][3] = "B";
b2[5][1] = "b";
b2[5][3] = "b";
GameState1 g3 = new GameState1(b2,false);
g3.printState();
List<Move> m5 = g3.actions();
for(Move m : m5){
m.printMove();
}
System.out.println("\n" + "Test6: Move(4,2) to (2,0) result (king jumping backward and capturing)");
CheckersGameState g4 = g3.result(new Move(4,2,2,0,true));
g4.printState();
}



private boolean _player; //true is White, Black is false
private String[][] _board; // 2D rep of board

public GameState1(){
String[][] b = new String[8][8];
b[0][1]="b";
b[0][3]="b";
b[0][5]="b";
b[0][7]="b";
b[1][0]="b";
b[1][2]="b";
b[1][4]="b";
b[1][6]="b";
b[2][1]="b";
b[2][3]="b";
b[2][5]="b";
b[2][7]="b";
b[5][0]="w";
b[5][2]="w";
b[5][4]="w";
b[5][6]="w";
b[6][1]="w";
b[6][3]="w";
b[6][5]="w";
b[6][7]="w";
b[7][0]="w";
b[7][2]="w";
b[7][4]="w";
b[7][6]="w";

_board = b;
_player = true;
}

public GameState1(String[][] board, boolean player){
_player = player;
_board = board;
}


@Override
public List<Move> actions() {
GameState1 game = this;
ArrayList<Move> list = new ArrayList<>();
String[][] b = game._board;
for(int i=0; i<8; i++){
for(int j=0; j<8; j++){
if(b[i][j]!=null && this._player){//if not null and blacks turn
if(b[i][j] == "b"){
if(game.canJumpL(i,j)){list.add(new Move(i,j,i+2,j-2,true));}
if(game.canJumpR(i,j)){list.add(new Move(i,j,i+2,j+2,true));}
if(game.canMoveL(i,j)){list.add(new Move(i,j,i+1,j-1,false));}
if(game.canMoveR(i,j)){list.add(new Move(i,j,i+1,j+1,false));}

}
else if(b[i][j] == "B"){
if(game.canJumpL(i,j)){list.add(new Move(i,j,i+2,j-2,true));}
if(game.canJumpR(i,j)){list.add(new Move(i,j,i+2,j+2,true));}
if(game.canMoveL(i,j)){list.add(new Move(i,j,i+1,j-1,false));}
if(game.canMoveR(i,j)){list.add(new Move(i,j,i+1,j+1,false));}
if(game.canBackL(i,j)){list.add(new Move(i,j,i-1,j-1,false));}
if(game.canBackR(i,j)){list.add(new Move(i,j,i-1,j+1,false));}
if(game.canJumpBackL(i,j)){list.add(new Move(i,j,i-2,j-2,true));}
if(game.canJumpBackR(i,j)){list.add(new Move(i,j,i-2,j-2,true));}
}
}
else if(b[i][j]!=null && !this._player){
if(b[i][j] == "w"){
if(game.canJumpBackL(i,j)){list.add(new Move(i,j,i-2,j-2,true));}
if(game.canJumpBackR(i,j)){list.add(new Move(i,j,i-2,j+2,true));}
if(game.canBackL(i,j)){list.add(new Move(i,j,i-1,j-1,false));}
if(game.canBackR(i,j)){list.add(new Move(i,j,i-1,j+1,false));}
}
else if(b[i][j] == "W"){
if(game.canJumpL(i,j)){list.add(new Move(i,j,i+2,j-2,true));}
if(game.canJumpR(i,j)){list.add(new Move(i,j,i+2,j+2,true));}
if(game.canMoveL(i,j)){list.add(new Move(i,j,i+1,j-1,false));}
if(game.canMoveR(i,j)){list.add(new Move(i,j,i+1,j+1,false));}
if(game.canBackL(i,j)){list.add(new Move(i,j,i-1,j-1,false));}
if(game.canBackR(i,j)){list.add(new Move(i,j,i-1,j+1,false));}
if(game.canJumpBackL(i,j)){list.add(new Move(i,j,i-2,j-2,true));}
if(game.canJumpBackR(i,j)){list.add(new Move(i,j,i-2,j+2,true));}
}
}

}
}
return list;
}
@Override
//fix this
public CheckersGameState result(Move x) {
GameState1 game = this;
String[][] b = this._board;
boolean p = this._player;
CheckersGameState next = null;
//check if this situation will result in a king B
if((x._x == 6 && x._x2 == 7)&& (b[x._x][x._y] != "W")){
b[x._x2][x._y2] = "B";
b[x._x][x._y] = null;
if(game.canJumpBackL(x._x2, x._y2) || game.canJumpBackR(x._x2, x._y2) ){
next = new GameState1(b,p);
}
else
next = new GameState1(b,!p);
}
//check if this will result in king W
else if((x._x == 1 && x._x2 == 0)&& (b[x._x][x._y] != "B")){
b[x._x2][x._y2] = "W";
b[x._x][x._y] = null;
if(game.canJumpL(x._x2, x._y2) || game.canJumpR(x._x2, x._y2)){
next = new GameState1(b,p);
}
else
next = new GameState1(b,!p);
}
//if you get a king by jumping into end of whites side, change to B and remove captured piece
else if((x._x == 5 && x._x2 == 7)&& (b[x._x][x._y] != "W")){
b[x._x2][x._y2] = "B";
b[x._x][x._y] = null;
if(x._y2>x._y){ //jumping right, set the one you jumped over to be null
b[x._x+1][x._y+1] = null;
}
else{
b[x._x+1][x._y-1] = null;
}
if(game.canJumpBackL(x._x2, x._y2) || game.canJumpBackR(x._x2, x._y2)){
//if there is another jump we can take, return state with same players turn
next = new GameState1(b,p);
}
else{
next = new GameState1(b,!p);
}
}
//if you get a king by jumping to end of blacks side, change to W and remove captured piece
else if((x._x == 2 && x._x2 == 0)&& (b[x._x][x._y] != "B")){
b[x._x2][x._y2] = "W";
b[x._x][x._y] = null;
if(x._y2>x._y){ //jumping right, set the one you jumped over to be null
b[x._x-1][x._y+1] = null;
}
else{
b[x._x-1][x._y-1] = null;
}
if(game.canJumpL(x._x2, x._y2) || game.canJumpR(x._x2, x._y2)){
//if there is another jump we can take, return state with same players turn
next = new GameState1(b,p);
}
else{
next = new GameState1(b,!p);
}
}
//if just a normal jump
else if(x._b){
String s = b[x._x][x._y];
b[x._x2][x._y2] = s;
if(x._y2>x._y && x._x2>x._x){
b[x._x+1][x._y+1] = null;
b[x._x][x._y]=null;
next = new GameState1(b,!p);
}
else if(x._y2<x._y && x._x2>x._x){
b[x._x+1][x._y-1] = null;
b[x._x][x._y]=null;
next = new GameState1(b,!p);
}
else if(x._y2>x._y && x._x2<x._x){
b[x._x-1][x._y+1] = null;
b[x._x][x._y]=null;
next = new GameState1(b,!p);
}
else if(x._y2<x._y && x._x2<x._x){
b[x._x-1][x._y-1] = null;
b[x._x][x._y]=null;
next = new GameState1(b,!p);
}
if(s == "B" || s == "W"){
if(game.canJumpL(x._x2,x._y2) || game.canJumpR(x._x2,x._y2) || game.canJumpBackL(x._x2,x._y2)|| game.canJumpR(x._x2,x._y2)){
next = new GameState1(b,p);
}
else next = new GameState1(b,!p);
}
}
else{
b[x._x2][x._y2] = b[x._x][x._y];
b[x._x][x._y] = null;
next = new GameState1(b, !p);
}

return next;
}

@Override
public void printState() {
String[][] board = this._board;
for(int i=0; i<8; i++){
System.out.println();
for(int j=0; j<8; j++){
if(board[i][j]==null)
System.out.print("-");
else System.out.print(board[i][j]);
}
}
System.out.println("\n\n" + this.player() + "'s move");

}
@Override
public String player() {

if(!this._player)
return "White";
return "Black";
}

private boolean canBackL(int i, int j){
GameState1 game = this;
String[][] b = game._board;
if(j!=0 && i!=0){
if(b[i-1][j-1]==null){
return true;
}
}
return false;
}
private boolean canMoveL(int i, int j){
GameState1 game = this;
String[][] b = game._board;
if(j!=0 && i!=7){
if(b[i+1][j-1]==null){
return true;
}
}
return false;
}
private boolean canBackR(int i, int j){
GameState1 game = this;
String[][] b = this._board;
if(j!=7 && i!=0){
if(b[i-1][j+1]==null){
return true;
}
}
return false;
}
private boolean canMoveR(int i, int j){
GameState1 game = this;
String[][] b = this._board;
if(j!=7 && i!=7){
if(b[i+1][j+1]==null){
return true;
}
}
return false;
}
private boolean canJumpBackL(int i, int j){
GameState1 game = this;
String[][] b = this._board;
if(j!=0 && j!=1 && i!=0 && i!=1){
if(!game._player){
if(b[i-1][j-1] =="b" || b[i-1][j-1]=="B"){
if(b[i-2][j-2]==null){
return true;
}
}
}
else if(game._player){
if(b[i-1][j-1] =="w" || b[i-1][j-1]=="W"){
if(b[i-2][j-2]==null){
return true;
}
}
}
}
return false;
}
private boolean canJumpL(int i, int j){
GameState1 game = this;
String[][] b = this._board;
if(j!=0 && j!=1 && i!=6 && i!=7){
if(b[i+1][j-1] =="w" || b[i+1][j-1]=="W" || b[i][j] == "B" || b[i][j] == "W"){
if(b[i+2][j-2]==null){
return true;
}
}
}
return false;
}
private boolean canJumpBackR(int i, int j){
GameState1 game = this;
String[][] b = this._board;
if(j!=6 && j!=7 && i!=0 && i!=1){
if(!game._player){
if(b[i-1][j+1]=="b" || b[i-1][j+1]=="B"){
if(b[i-2][j+2]==null){
return true;
}
}
}
else if(game._player){
if(b[i-1][j+1]=="w" || b[i-1][j+1]=="W"){
if(b[i-2][j+2]==null){
return true;
}
}
}
}
return false;
}
private boolean canJumpR(int i, int j){
GameState1 game = this;
String[][] b = this._board;
if(j!=6 && j!=7 && i!=6 && i!=7){
if(b[i+1][j+1]=="w" || b[i+1][j+1]=="W" || b[i][j] == "B" || b[i][j] == "W"){
if(b[i+2][j+2]==null){
return true;
}
}
}
return false;
}

}

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