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#include <iostream>
#include <fstream>
#include <string>
using namespace std;
const char BLANK = '-';
const char ROBOT = 'X';
const char GOAL = 'O';
const int screen_num_lines = 25;
const int lengthX = 10; // for now we only support square boards
const int lengthY = 10; // it "should" work with non-square, YMMV
// Board is described by the following coordinate system:
// 0 --> +X
// |
// |
// V
// +Y
void initBoard(char board[lengthX][lengthY], int &xPos, int &yPos);
void clearScreen();
void showGrid(char board[lengthX][lengthY]);
bool hasChar(char board[lengthX][lengthY], char findMe);
void updateGrid(char board[lengthX][lengthY], int &xPos, int &yPos, char action);
int main()
{
char board[lengthX][lengthY] = {0};
int xPos = 0, yPos = 0;
initBoard(board, xPos, yPos);
while(hasChar(board, GOAL))
{
char action;
clearScreen();
showGrid(board);
cout << "Where would you like to go? (l, r, u, d) " << endl;
cin >> action;
updateGrid(board, xPos, yPos, action);
}
clearScreen();
showGrid(board);
cout << "You found the cookie! Congratulations!\n";
return 0;
}
void initBoard(char board[lengthX][lengthY], int &xPos, int &yPos) {
for(int curRow=0; curRow < lengthY; curRow++) {
for(int curCol=0; curCol < lengthX; curCol++) {
board[curCol][curRow] = BLANK;
}
}
board[0][0] = GOAL;
board[lengthX/2][lengthY/2] = ROBOT;
xPos = lengthX/2;
yPos = lengthY/2;
}
bool hasChar(char board[lengthX][lengthY], char findMe) {
for(int curRow=0; curRow < lengthY; curRow++) {
for(int curCol=0; curCol < lengthX; curCol++) {
if(board[curCol][curRow] == findMe) {
return true;
}
} //end curCol loop
} // end curRow loop
return false;
}
void clearScreen() {
for(int i = 0;i<screen_num_lines;i++) {
cout << endl;
}
}
void showGrid(char board[lengthX][lengthY]) {
for(int curRow=0; curRow < lengthY; curRow++) {
for(int curCol=0; curCol < lengthX; curCol++) {
cout << board[curCol][curRow];
} // end curCol loop
cout << endl;
} // end curRow loop
}
void updateGrid(char board[lengthX][lengthY],int & xPos, int & yPos,char action) {
board[xPos][yPos] = BLANK;
if (action == 'l' && xPos > 0) {
xPos--;
} else if(action == 'r' && xPos < lengthX - 1) {
xPos++;
} else if(action == 'u' && yPos > 0) {
yPos--;
} else if(action == 'd' && yPos < lengthY - 1) {
yPos++;
}
board[xPos][yPos] = ROBOT;
}
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