/// <summary>
/// Shows the inventory screen. Implements the AGI "status" command.
/// </summary>
public void ShowInventoryScreen()
{
List <InvItem> invItems = new List <InvItem>();
byte selectedItemIndex = 0;
int howMany = 0;
int row = 2;
// Switch to the text screen.
textGraphics.TextScreen(15);
// Construct the table of objects being carried, deciding where on
// the screen they are to be printed as we go.
for (byte i = 0; i < state.Objects.Count; i++)
{
Object obj = state.Objects[i];
if (obj.Room == Defines.CARRYING)
{
InvItem invItem = new InvItem();
invItem.Num = i;
invItem.Name = obj.Name;
invItem.Row = row;
if ((howMany & 1) == 0)
{
invItem.Col = 1;
}
else
{
row++;
invItem.Col = 39 - invItem.Name.Length;
}
if (i == state.Vars[Defines.SELECTED_OBJ])
{
selectedItemIndex = (byte)invItems.Count;
}
invItems.Add(invItem);
howMany++;
}
}
// If no objects in inventory, then say so.
if (howMany == 0)
{
InvItem invItem = new InvItem();
invItem.Num = 0;
invItem.Name = "nothing";
invItem.Row = row;
invItem.Col = 16;
invItems.Add(invItem);
}
// Display the inventory items.
DrawInventoryItems(invItems, invItems[selectedItemIndex]);
// If we are not allowing an item to be selected, we simply wait for a key press then return.
if (!state.Flags[Defines.ENABLE_SELECT])
{
userInput.WaitForKey();
}
else
{
// Otherwise we handle movement between the items and selection of an item.
while (true)
{
int key = userInput.WaitForKey();
if (key == (int)Keys.Enter)
{
state.Vars[Defines.SELECTED_OBJ] = invItems[selectedItemIndex].Num;
break;
}
else if (key == (int)Keys.Escape)
{
state.Vars[Defines.SELECTED_OBJ] = 0xFF;
break;
}
else if ((key == (int)Keys.Up) || (key == (int)Keys.Down) || (key == (int)Keys.Right) || (key == (int)Keys.Left))
{
selectedItemIndex = MoveSelect(invItems, (Keys)key, selectedItemIndex);
}
}
}
// Switch back to the graphics screen.
textGraphics.GraphicsScreen();
}