コード例 #1
0
  public void buyItemFromUser(User buyer, User seller, Item currentItem)
        // PRE:  buyer, seller, currentItem must be initialized
        // POST: Purchases item from the store and has stores it into inventory.
      {

    int buyer_balance; // The new balance of the buyer
    int seller_balance; // The new balance of the seller
    String str; // First query
    String str2; // Second query
    String str3; // Third query

    buyer_balance = buyer.getBalance() - currentItem.getPrice();
    seller_balance = seller.getBalance() + currentItem.getPrice();

    if (buyer_balance > 0) // If the buyer wont go negative
    {
      str =
          String.format(
              "Update users set balance = (%d) where user_name = '%s'",
              buyer_balance, buyer.getUserName());

      str2 =
          String.format(
              "Update users set balance = (%d) where user_name = '%s'",
              seller_balance, seller.getUserName());

      str3 =
          String.format(
              "Update items set owner_id = (%d) where item_name = '%s'",
              buyer.getUserId(), currentItem.getItemName());

      updateTables(str, str2, str3);

    } else {
      // Prompt the user with an error
      JOptionPane.showMessageDialog(
          null, "You will go bankrupt if you try buying that, try selling some items.");
    }
  }
コード例 #2
0
ファイル: DataGenerator.java プロジェクト: mdfaller/db
  /**
   * Get a line item to put in the database
   *
   * @param id for the line item
   * @param warehouse for the station
   * @param Station station
   * @param Customer customer
   * @param Order order
   * @param ArrayList<Item> itemList
   * @return lineItem
   */
  public LineItem getLineItem(
      int id,
      Warehouse warehouse,
      Station station,
      Customer customer,
      Order order,
      ArrayList<Item> itemList) {
    LineItem lineItem = new LineItem();

    Item item = itemList.get(randInt(0, itemList.size()));

    int numOrdered = randInt(1, 5);

    if (item.getCurrentStock() < numOrdered) return null;

    lineItem.setLineItemID(id);
    lineItem.setOrderID(order.getOrderID());
    lineItem.setItemID(item.getItemID());
    lineItem.setCustomerID(customer.getCustomerID());
    lineItem.setWarehouseID(warehouse.getWarehouseID());
    lineItem.setStationID(station.getStationID());
    lineItem.setNumOrdered(numOrdered);
    lineItem.setAmountDue(item.getPrice().multiply(new BigDecimal(lineItem.getNumOrdered())));
    lineItem.setAmountDue(
        lineItem.getAmountDue().add(station.getSalesTax().multiply(lineItem.getAmountDue())));
    lineItem.setAmountDue(
        lineItem.getAmountDue().subtract(customer.getDiscount().multiply(lineItem.getAmountDue())));
    lineItem.setDateDelivered(randDate());

    item.setNumLineItems(item.getNumLineItems() + 1);
    item.setNumSold(item.getNumSold() + lineItem.getNumOrdered());
    // item.setCurrentStock(item.getCurrentStock() - lineItem.getNumOrdered()); don't modify stock
    // counts for random generation

    customer.setTotalPaid(customer.getTotalPaid().add(lineItem.getAmountDue()));
    station.setTotalSales(station.getTotalSales().add(lineItem.getAmountDue()));
    warehouse.setTotalSales(warehouse.getTotalSales().add(lineItem.getAmountDue()));

    return lineItem;
  }
コード例 #3
0
  @Override
  public void keyPressed(KeyEvent e) {
    int option; // The option the user selected.
    User buyer; // User object for buyer
    User seller; // User object for seller
    Item selected_item; // Item object for selected item

    if (help) // if in help mode
    {
      return;
    }

    switch (e.getKeyCode()) // handle event associated with key
    {
      case KeyEvent.VK_F1: // if f1 was pressed
        switchStore(0);
        break;

      case KeyEvent.VK_F2: // if f2 was pressed
        switchStore(1);
        break;

      case KeyEvent.VK_F3: // if f3 was pressed
        switchStore(2);
        break;

      case KeyEvent.VK_F4: // if f4 was pressed
        switchStore(3);
        break;

      case KeyEvent.VK_D: // if d or right was pressed
      case KeyEvent.VK_RIGHT:
        if (currentPage != totalPages - 1) // if we are not on the last page
        {
          currentPage++;
          itemSelected = -1;
        }
        break;

      case KeyEvent.VK_A: // if a or left was pressed
      case KeyEvent.VK_LEFT:
        if (currentPage != 0) // if we are not on the first page
        {
          currentPage--;
          itemSelected = -1;
        }
        break;

      case KeyEvent.VK_W: // if w or up was pressed
      case KeyEvent.VK_UP:
        if (itemSelected == -1) // if no items currently selected
        {
          itemSelected = 0;
        } else // if an item was selected
        {
          itemSelected--;
          if (itemSelected < 0) // loop if at beginning of list
          {
            itemSelected = ITEMSPERPAGE - 1;
          }
        }

        break;

      case KeyEvent.VK_S: // if s or down was pressed
      case KeyEvent.VK_DOWN:
        itemSelected++;

        if (itemSelected >= ITEMSPERPAGE) // if at end of list, loop around
        {
          itemSelected = 0;
        }

        break;

      case KeyEvent.VK_ENTER: // if enter was pressed
        if (itemSelected == -1) // if no item was selected
        {
          break;
        }

        selected_item = itemsArray[itemSelected];

        option =
            JOptionPane.showConfirmDialog(
                this, ((!mode) ? "Buy " : "Sell ") + "for " + "$" + selected_item.getPrice() + "?");

        if (option == 0 && mode) // if they choose to buy
        {
          buyer = usersArray[0];
          switch (store) // change message based on value of store.
          {
            case 0:
              seller = usersArray[2];
              break;

            case 1:
              seller = usersArray[1];
              break;

            case 2:
              seller = usersArray[3];
              break;

            case 3:
              seller = usersArray[4];
              break;

            default:
              seller = usersArray[1];
          }

          buyItemFromUser(buyer, seller, selected_item);

        } else if (option == 0 && mode) // if they choose to sell
        {
          seller = usersArray[0];

          switch (store) // change message based on value of store.
          {
            case 0:
              buyer = usersArray[2];
              break;

            case 1:
              buyer = usersArray[1];
              break;

            case 2:
              buyer = usersArray[3];
              break;

            case 3:
              buyer = usersArray[4];
              break;

            default:
              buyer = usersArray[1];
          }

          buyItemFromUser(buyer, seller, selected_item);
        }

        itemSelected = -1;
        break;

      default:
        return;
    }

    repaint();
  }
コード例 #4
0
  @Override
  public void mousePressed(MouseEvent e) {
    CustomButton buttonPressed; // Button that was pressed.
    String buttonName; // The name of the button.
    int option; // Option chosen by user.
    User buyer; // User object for buyer
    User seller; // User object for seller
    Item selected_item; // Item object for selected item

    if (help) // if in help mode
    {
      help = false;
      repaint();
      return;
    }

    wasItemSelected(e.getX(), e.getY());
    buttonPressed = CustomButton.wasPressed(e.getX(), e.getY());

    if (buttonPressed == null) // if no button was pressed
    {
      return;
    }

    buttonName = buttonPressed.getName();
    playAudio(-1);

    switch (buttonName) // handle event associated with button name
    {
      case "rightTab":
        currentPage++;
        itemSelected = -1;
        break;

      case "leftTab":
        currentPage--;
        itemSelected = -1;
        break;

      case "buyTab":
        mode = false;
        break;

      case "sellTab":
        mode = true;
        break;

      case "button":
        selected_item = itemsArray[itemSelected];

        option =
            JOptionPane.showConfirmDialog(
                this, ((!mode) ? "Buy " : "Sell ") + "for " + "$" + selected_item.getPrice() + "?");

        if (option == 0 && (!mode)) // if they choose to buy
        {
          buyer = usersArray[0];
          switch (store) // change message based on value of store.
          {
            case 0:
              seller = usersArray[2];
              break;

            case 1:
              seller = usersArray[1];
              break;

            case 2:
              seller = usersArray[3];
              break;

            case 3:
              seller = usersArray[4];
              break;

            default:
              seller = usersArray[1];
          }

          buyItemFromUser(buyer, seller, selected_item);

        } else if (option == 0 && mode) // if they choose to sell
        {
          seller = usersArray[0];

          switch (store) // change message based on value of store.
          {
            case 0:
              buyer = usersArray[2];
              break;

            case 1:
              buyer = usersArray[1];
              break;

            case 2:
              buyer = usersArray[3];
              break;

            case 3:
              buyer = usersArray[4];
              break;

            default:
              buyer = usersArray[1];
          }

          buyItemFromUser(buyer, seller, selected_item);
        }

        itemSelected = -1;
        break;

      case "nextStore":
        if (++store == NUMSTORES) // if we're on the last store, loop around
        {
          store = 0;
        }

        switchStore(store);
        break;

      case "sort":
        // something
        orderToSort =
            JOptionPane.showOptionDialog(
                this,
                "Sort by:",
                "Sort",
                JOptionPane.DEFAULT_OPTION,
                JOptionPane.QUESTION_MESSAGE,
                null,
                SORTOPTIONS,
                null);

        break;

      case "help":
        help = true;
        break;

      default:
    }

    repaint();
  }
コード例 #5
0
  private void drawItem(Graphics g, int item, Item currentItem) {
    Font font; // The font to be used.
    int x1; // The first x coordinate of drawing area.
    int y1; // The first y coordinate of drawing area.
    int x2; // The second x coordinate of drawing area.
    int y2; // The second y coordinate of drawing area.
    int width; // Width of drawing area.
    int height; // Height of drawing area.

    int iconX; // x coordinate of the icon.
    int iconY; // y coordinate of the icon.
    int iconLength; // Length of the icon.

    int itemNameX; // The x coordinate of the item name.
    int itemNameLength; // The length of the item name.

    int itemPriceX; // The x coordinate of the item price.
    int itemPriceWidth; // The width of the item price.

    x1 = itemPositions[item][0].getScaledX();
    x2 = itemPositions[item][1].getScaledX();
    y1 = itemPositions[item][0].getScaledY();
    y2 = itemPositions[item][1].getScaledY();
    width = x2 - x1;
    height = y2 - y1;

    iconX = x1 + (int) (width * .01);
    iconY = y1 + (int) (height * .1);
    iconLength = (int) (height * .8);

    Drawing.drawImage(g, iconX, iconY, iconLength, iconLength, currentItem.getItemPath());

    itemNameX = iconX + (int) (iconLength * 1.5);
    itemNameLength = (int) (width * 0.6);

    font =
        Drawing.getFont(
            currentItem.getItemName(),
            itemNameLength,
            (int) (iconLength * 0.8),
            FONTNAME,
            FONTSTYLE);

    g.setFont(font);
    g.setColor(Color.WHITE);
    g.drawString(currentItem.getItemName(), itemNameX, iconY + (int) (iconLength * 0.9));

    itemPriceX = x1 + (int) (width * 0.8);
    itemPriceWidth = (int) (width * 0.15);

    font =
        Drawing.getFont(
            Integer.toString(currentItem.getPrice()),
            itemPriceWidth,
            iconLength,
            FONTNAME,
            FONTSTYLE);
    g.setFont(font);
    g.setColor(Color.WHITE);
    g.drawString(
        Integer.toString(currentItem.getPrice()), itemPriceX, iconY + (int) (iconLength * .9));

    return;
  }