I think your best bet for adding tax is to use either an array filled with a record, or parallel arrays (not recommended, but if you have not learned how to use records, this might be what your teacher wants). So either:
| Turing: |
var Menu : array 1 .. 21 of
record Name : string Price : real end record Menu (1).Name := Name1 Menu (1).Price := Price1 Menu (2).Name := Name2 Menu (2).Price := Price2 ... |
Or:
| Turing: |
var MenuItems : array 1 .. 21 of string
var MenuPrices : array 1 .. 21 of real MenuItems (1) := Name1 MenuPrices (1) := Price1 MenuItems (2) := Name2 MenuPrices (2) := Price2 ... |
If you wanted to separate the foods into categories dynamically you could add another field to the record, or another parallel array. Either way you can output the menu using a counted loop:
| Turing: |
for i : 1 .. 21
%put name of item + price of item end for |
And separate the items by category statically (for example, going from 1 to 9 for sandwiches), or dynamically checking a "category" field.
If you put the menu into an array than the number the user enters becomes the index where the food is in the array, so just use something like:
| Turing: |
Total := Menu (user selection).Price * (1 + tax percentage)
%or Total := MenuPrices (user selection) * (1 + tax percentage) |
To go back to the Ryan's Menu -> Menu, or Menu -> Ryan's Menu, you need to embedded loops. The outer most loop would be your main loop (only broken when the user wants to exit) and the inner most loops would be used for each menu. So:
| Turing: |
%Main loop
loop loop %Ryans menu end loop loop %Menu end loop %exit when the user wants to exit end loop |
You could use an if statement, and a "state" variable, to change between different menus. So:
| Turing: |
State := 1 %Main loop loop if State = 1 then loop %Ryans menu State := UsersInput end loop elsif State = 2 then loop %Menu end loop State := 1 end if %exit when the user wants to exit end loop |
I hope that helps.
