Setting Boundaries for Key inputs

[w00t]

code:

loop         Input.KeyDown (chars)         if chars (KEY_RIGHT_ARROW) then             x := x + 2         end if         if chars (KEY_LEFT_ARROW) then             x := x - 2         end if         if chars (KEY_DOWN_ARROW) then         end if         Pic.Draw (ship, x, 10, picCopy)         View.Update     end loop

this is what i have for key inputs so far i was wondering if there is a way to set boundaries so that an object doesn't go to far off the screen?!? Becuase that would be bad in a game like space invaders!

Any help is greatly appreciated..
w00t

and yes i realized i just posted a topic about key inputs like 15 mins ago.. please over look that

[wtd]

code:

if chars (KEY_RIGHT_ARROW) then    x := x + 2 end if

Use something like:

code:

if chars (KEY_RIGHT_ARROW) and x <= MAX_X - 2 then    x += 2 end if

[bill_ion_boi]

what if tere are specific boundaries like a square in the midle of the screen, like you can go anywhere exept through the square....Is that possible?

[wtd]

bill_ion_boi wrote:

what if tere are specific boundaries like a square in the midle of the screen, like you can go anywhere exept through the square....Is that possible?

Yes, just add more conditions:

sort of psuedo-code

code:

if right_arrow and x < max_x and x < left_side_of_square then   ... end if

[w00t]

Now that i have it working with Boundaries , thnx alot

code:

loop         Input.KeyDown (chars)         if chars (KEY_RIGHT_ARROW) and x <= maxx - 50                 then             x += 2         end if         if chars (KEY_LEFT_ARROW) and x >= maxx - 550 then             x -= 2         end if         if chars (KEY_DOWN_ARROW) then         end if         Pic.Draw (ship, x, 10, picCopy)         View.Update     end loop

please tell me that will work on turing 3.1.1 because thats what i have at school and if it doesn't what will work so i can fix my program.

[Tony]

you might want to consider having two versions of Turing on your machine. 4.0.5 for yourself and 3.1 for school related work.

[w00t]

curses, it doesn't work ,gah
anyone know what i could put to replace my code?

[Cervantes]

Is it the View.Update that is causing the trouble? Personally, I've never used any of the Turing 3.x's, but if I remember correctly, those don't have View.Update.
If that's giving you problems, I don't think there's much you can do about it.
Otherwise, tell us where the error is.

[w00t]

You're right,

thee is now view,update in any 3.x but i figured how to get it working again.. thanks alot

w00t