/*void moveBoardLeft(int in[4][4]){
	//check if 0,0 is empty
	if(isCellEmpty(in, 0, 0) == true){
		//can move top row left
		in[0][0] = in[0][1];
		in[0][1] = in[0][2];
		in[0][2] = in[0][3];
		in[0][3] = 0;

		//check for merges
		if(cellValueSame(in, 0, 0, 0, 1) == true){
			in[0][0] = in[0][0] + in[0][1];
			in[0][1] = in[0][2];
			in[0][2] = in[0][3];
			in[0][3] = 0;
		}
		else if(cellValueSame(in, 0, 1, 0, 2)){
			in[0][1] = in[0][1] + in[0][2];
			in[0][2] = in[0][3];
			in[0][3] = 0;
		}
	}
	else if(isCellEmpty(in, 0, 0) == false){
		//check for merges
		if(cellValueSame(in, 0, 0, 0, 1) == true){
			in[0][0] = in[0][0] + in[0][1];
			in[0][1] = in[0][2];
			in[0][2] = in[0][3];
			in[0][3] = 0;
		}
		else if(cellValueSame(in, 0, 1, 0, 2) == true){
			in[0][1] = in[0][1] + in[0][2];
			in[0][2] = in[0][3];
			in[0][3] = 0;
		}
		else if(cellValueSame(in, 0, 2, 0, 3) == true){
			in[0][2] = in[0][2] + in[0][3];
			in[0][3] = 0;
		}
	}

	//check if 1, 0 is empty
	if(isCellEmpty(in, 1, 0) == true){
			//can move row left
			in[1][0] = in[1][1];
			in[1][1] = in[1][2];
			in[1][2] = in[1][3];
			in[1][3] = 0;

			//check for merges
			if(cellValueSame(in, 1, 0, 1, 1) == true){
				in[1][0] = in[1][0] + in[1][1];
				in[1][1] = in[1][2];
				in[1][2] = in[1][3];
				in[1][3] = 0;
			}
			else if(cellValueSame(in, 1, 1, 1, 2)){
				in[1][1] = in[1][1] + in[1][2];
				in[1][2] = in[1][3];
				in[1][3] = 0;
			}
	}
	else if(isCellEmpty(in, 1, 0) == false){
		//check for merges
		if(cellValueSame(in, 1, 0, 1, 1) == true){
			in[1][0] = in[1][0] + in[1][1];
			in[1][1] = in[1][2];
			in[1][2] = in[1][3];
			in[1][3] = 0;
		}
		else if(cellValueSame(in, 1, 1, 1, 2) == true){
			in[1][1] = in[1][1] + in[1][2];
			in[1][2] = in[1][3];
			in[1][3] = 0;
			}
		else if(cellValueSame(in, 1, 2, 1, 3) == true){
			in[1][2] = in[1][2] + in[1][3];
			in[1][3] = 0;
		}
	}

	//check if 2, 0 is empty
	if(isCellEmpty(in, 2, 0) == true){
		//can move row left
		in[2][0] = in[2][1];
		in[2][1] = in[2][2];
		in[2][2] = in[2][3];
		in[2][3] = 0;

		//check for merges
		if(cellValueSame(in, 2, 0, 2, 1) == true){
			in[2][0] = in[2][0] + in[2][1];
			in[2][1] = in[2][2];
			in[2][2] = in[2][3];
			in[2][3] = 0;
		}
		else if(cellValueSame(in, 2, 1, 2, 2)){
			in[2][1] = in[2][1] + in[2][2];
			in[2][2] = in[2][3];
			in[2][3] = 0;
		}
	}
	else if(isCellEmpty(in, 2, 0) == false){
		//check for merges
		if(cellValueSame(in, 2, 0, 2, 1) == true){
			in[2][0] = in[2][0] + in[2][1];
			in[2][1] = in[2][2];
			in[2][2] = in[2][3];
			in[2][3] = 0;
			}
		else if(cellValueSame(in, 2, 1, 2, 2) == true){
			in[2][1] = in[2][1] + in[2][2];
			in[2][2] = in[2][3];
			in[2][3] = 0;
			}
		else if(cellValueSame(in, 2, 2, 2, 3) == true){
			in[2][2] = in[2][2] + in[2][3];
			in[2][3] = 0;
			}
		}

	//check if 3, 0 is empty
	if(isCellEmpty(in, 3, 0) == true){
		//can move row left
		in[3][0] = in[3][1];
		in[3][1] = in[3][2];
		in[3][2] = in[3][3];
		in[3][3] = 0;

			//check for merges
			if(cellValueSame(in, 3, 0, 3, 1) == true){
				in[3][0] = in[3][0] + in[3][1];
				in[3][1] = in[3][2];
				in[3][2] = in[3][3];
				in[3][3] = 0;
			}
			else if(cellValueSame(in, 3, 1, 3, 2)){
				in[3][1] = in[3][1] + in[3][2];
				in[3][2] = in[3][3];
				in[3][3] = 0;
			}
	}
	else if(isCellEmpty(in, 3, 0) == false){
		//check for merges
		if(cellValueSame(in, 3, 0, 3, 1) == true){
		in[3][0] = in[3][0] + in[3][1];
		in[3][1] = in[3][2];
		in[3][2] = in[3][3];
		in[3][3] = 0;
		}
		else if(cellValueSame(in, 3, 1, 3, 2) == true){
			in[3][1] = in[3][1] + in[3][2];
			in[3][2] = in[3][3];
			in[3][3] = 0;
		}
		else if(cellValueSame(in, 3, 2, 3, 3) == true){
			in[3][2] = in[2][2] + in[3][3];
			in[3][3] = 0;
		}
	}

} */