elevator.adb.bk.3

with Text_Io; use Text_Io;
with Ada.Integer_Text_Io; use Ada.Integer_Text_Io;
with Ada.Float_Text_Io; use Ada.Float_Text_Io;
with Ada.Numerics.Float_Random; use Ada.Numerics.Float_Random;
with Ada.Calendar; use Ada.Calendar;
with cart; use cart;
with floors; use floors;
WITH NT_Console; USE NT_Console;

procedure elevator is

    cart_one : cart.cart := initCart;

    task semaphore is
            entry P;			-- Dijkstra’s terminology
            entry V;			-- from the Dutch
	end semaphore;
	task body semaphore is
		begin
		loop
			accept P;	-- won’t accept another P until a caller asks for V
			accept V;
		end loop;
	end semaphore;

    -- Prints the elevator
    PROCEDURE Print_Elevator(level : Integer) IS
      Min_Level : Integer := 0;
      Top_Level : Integer := 8;
      print_iterator : integer := 0;

   BEGIN
        semaphore.p;
         For I in min_level .. top_level LOOP
            Goto_XY(40,12-print_iterator);
            Put(Integer'Image(i));
            IF I = Level THEN
               Goto_XY(42,12-print_iterator);
               Put("| [] |");
            ELSE
               Goto_XY(42,12-print_iterator);
               Put("|    |");
            END IF;
            print_iterator := print_iterator + 1;
         END LOOP;
        Goto_XY(0,1);
        semaphore.v;
   end;



    --- TASK BUTTONS ----
    task button_signals is
        entry cart_press (F : in integer);
        entry floor_press (D : in floors.direction; L : in integer);
    end button_signals;
    task body button_signals is
    begin
        loop
            select
                accept cart_press(F : in integer) do
                    pressCartButton(cart_one, F);
                end cart_press;
            or
                accept floor_press(D : in direction; L : in integer) do
                    pressFloorButton(cart_one, L, D);
                end floor_press;
            end select;
        end loop;
    end button_signals;

    -- Gets user input
    task Get_Input;
    task body Get_Input is
        Level: String (1..80);
        direction: String (1..80);
        Length : Integer;
        LengthDir : Integer;
        LevelInt : Integer;
    BEGIN
          semaphore.p;
            Goto_XY(0,0);
            Put ("What do you want to do? ex. t4(to floor 4), u2(up from floor 2), d1 (down from floor 1)");
            Goto_XY(0,1);
            semaphore.v;
       LOOP
             semaphore.p;
          Goto_XY(0,1);
          semaphore.v;
            Get_Line (level, Length);
            New_Line;
            IF level (1..1) = "u" THEN
                LevelInt := Integer'Value (Level (2 .. 2));
                button_signals.floor_press(Up, levelInt);
            ELSIF level (1..1) = "d" THEN
                LevelInt := Integer'Value (Level (2 .. 2));
                button_signals.floor_press(Down, levelInt);
            ELSIF level (1..1) = "t" THEN
                LevelInt := Integer'Value (Level (2 .. 2));
                button_signals.cart_press(levelInt);
            end if;

            semaphore.p;
            Goto_XY(0,0);
            Put("                                   "); new_line;
            Put("                                   ");new_line;
            Put("                                   ");new_line;
            Put("                                   ");new_line;
            semaphore.v;
        end loop;

    end Get_Input;


    -- simulation task that accepts input from terminal
    PROCEDURE Inside_Elevator IS
        button : String (1..80);
        Length : Integer;
        level : Integer;
    BEGIN
        Put ("Press which button?> ");
        Get_Line (button, Length);
        New_Line;
        Level := Integer'Value (button (1..Length));
    end inside_elevator;

    task driveC;
    task body driveC is
    begin
        loop
            driveCart(cart_one);
            Print_Elevator(cart_one.level.level);
        end loop;
    end driveC;
    --- MAIN ---
begin
    loop
        delaY 60.0; --Run forever until closed
    end loop;
end elevator;