/*
	 * return 1 if can move right, 2 if can move left, 0 if cant move
	 */
	public int canMoveHorz(int carId){
		int xPos = 0;
		int yPos = 0;
		int length = 0;
		int retVal = 0;
		for(Vehicle v: this.getVehicles()) {
			if(v.getCarID() == carId) {
				xPos =v.getCurrColumn();
				yPos =v.getCurrRow();
				length = v.getLength();
			}
		}
		//check right movement
		if(xPos+length >= 0 && xPos+length <= 5) {
			if(this.array[xPos+length][yPos] == 0) {
				retVal = 1;
			}
		}
		//check left movement
		else if(xPos-1 >= 0 && xPos-1 <= 5) {
			 if(this.array[xPos-1][yPos] == 0) {
			retVal = 2;
		}
		}
		else {
		}
		return retVal;
	}


	public int canMoveVert(int carId){
		int xPos = 0;
		int yPos = 0;
		int length = 0;
		int retVal = 0;
		for(Vehicle v: this.getVehicles()) {
			if(v.getCarID() == carId) {
				xPos =v.getCurrColumn();
				yPos =v.getCurrRow();
				length = v.getLength();
			}
		}
		//check down movement
		if(xPos+length >= 0 && xPos+length <= 5) {
			if(this.array[xPos][yPos+length] == 0) {
				retVal = 1;
			}
		}
		//check up movement
		else if(xPos-1 >= 0 && xPos-1 <= 5) {
			 if(this.array[xPos][yPos-1] == 0) {
			retVal = 2;
		}
		}
		else {
		}
		return retVal;
	}