bullet shooting

[sammi]

What is it you are trying to achieve?
when i press the spacebar i want the bullets to shoot


What is the problem you are having?
<they wont shoot>


Describe what you have tried to solve this problem



Post any relevant code (You may choose to attach the file instead of posting the code if it is too long)

Turing:

var keys : array char of boolean % Number of bullets currently on the screen var numBullets : int := 0 % used so holding space only % fires once var firing : boolean firing := false % x-location of bullets on screen var bulletX : array 1 .. 10 of int %player location var playerX : int := 100 var playerY : int := 200 loop     Input.KeyDown (keys) % update keyboard info     %%%%%%% MOVING %%%%%%%%%%%%     for i : 1 .. numBullets         bulletX (i) := bulletX (i) + 2     end for     % Move Bullets     % 2) PUT CODE HERE TO MOVE BULLETS TO THE RIGHT     for i : 1 .. numBullets         if keys (' ') = true and firing = false then         if numBullets < 10 then             numBullets := numBullets + 2             firing  = true         end if       end if      end for     %%%%%%% FIRE CHECK  %%%%%%%%%%     % Fire Pressed?     if keys (' ') = true and firing = true then         numBullets := numBullets + 1         bulletX (numBullets) := 100     end if     if keys (' ') = false then         firing := false     end if     %%%%%%% REMOVE CHECK  %%%%%%%%     % this check is only if the furthest bullet     % has reached the wall, will modify later     if numBullets > 0 then         if bulletX (1) > maxx then             % 3) PUT CODE HERE TO REMOVE BULLET IN SLOT 1         end if     end if     %%%%%%%% DRAWING  %%%%%%%%%%     cls ()         % clear screen     % Draw Character     Draw.FillOval (playerX, playerY, 10, 10, 7)     % Draw Bullets     for i : 1 .. numBullets         Draw.FillOval (bulletX (i), 200, 4, 4, 7)     end for     delay (25) end loop

Please specify what version of Turing you are using
<Answer Here>

[evildaddy911]

the reason that the space isnt working is because you need to put

Turing:

if keys (char(ORD_SPACE)) and firing = false then

you dont put " " or key()= true

[sammi]

its still not not working so im going to get rid of all the fancy stuff and try to make a ball appear on the screen by pressing space.

[sammi]

alright so i got right back down to the basics and made my code so that when press spacebar a green bullet appears on the screen but it doesnt go anywhere. I'm familiar with making objects move around the screen if they have an integer value but not when they are arrays. (in this case a round of bullets) I need the black circle to shoot out a bullet when i press spacebar.

Turing:

var keys : array char of boolean % Number of bullets currently on the screen var numBullets : int := 0 % used so holding space only % fires once var firing : boolean firing := false % x-location of bullets on screen var bulletX : array 1 .. 10 of int %player location var playerX : int := 100 var playerY : int := 200 loop     Input.KeyDown (keys) % update keyboard info     %%%%%%% MOVING %%%%%%%%%%%%     % Move Bullets     % 2) PUT CODE HERE TO MOVE BULLETS TO THE RIGHT       %%%%%%% FIRE CHECK  %%%%%%%%%%     % Fire Pressed?     if keys (' ') = true and firing = false then         numBullets := numBullets + 1         bulletX (numBullets) := 100     end if     %%%%%%% REMOVE CHECK  %%%%%%%%     % this check is only if the furthest bullet     % has reached the wall, will modify later     if numBullets > 0 then         if bulletX (1) > maxx then             % 3) PUT CODE HERE TO REMOVE BULLET IN SLOT 1         end if     end if     %%%%%%%% DRAWING  %%%%%%%%%%     cls ()         % clear screen     % Draw Character     Draw.FillOval (playerX, playerY, 10, 10, 7)     % Draw Bullets     for i : 1 .. numBullets         Draw.FillOval (bulletX (i), 200, 4, 4, 10)     end for     delay (25) end loop

[Tony]

sammi @ Sat Nov 05, 2011 9:30 pm wrote:

I'm familiar with making objects move around the screen if they have an integer value but not when they are arrays.

But it's an array of integer values! So when you do my_array(index), you have an integer -- something that you already know how to move.

[Raknarg]

Just a note:

Turing:

if keys (' ') = true and firing = false then         numBullets := numBullets + 1         bulletX (numBullets) := 100     end if

Your program will crash after 11 loops i believe.

Also, you're going to want to work with an array of booleans fro each bullet so you can see whether or not they are dead without having to check them each individually.