HELP!!! Making an if key pressed statement execute repeatedly after pressing the key only once!?

[nick4563]

What is it you are trying to achieve?
I am trying to make a conditional loop repeat several times after a key has been pressed

What is the problem you are having?
Doesnt Work!!!! (What a stupid question)


Describe what you have tried to solve this problem
Everything I Know... i need to make my bullet shoot after pressing the '1' key once i can do everything but the weird loop.


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

Turing:

Please specify what version of Turing you are using
4.1

[Tony]

You could try remembering (in some variable) if a key has been pressed in the past.

[TheCatsMeow]

You could try putting a boolean in there. and make it "True" when the key is pressed, but false when no keys are pressed.

[chaos]

Try this:

if key(1) then
capture bullet position
boolean variable=true
end if
if boolean variable=true then
move bullet
draw bullet
end if

[nick4563]

Thanks! I never thought of using a boolean to control the loop!

[nick4563]

I have this code:

var chars : array char of boolean
var a,b : int a:= 20 b:= 20
var shoot : boolean
drawfilloval(a,b,20,2,green)

loop
drawfilloval(a,b,20,2,green)
Input.KeyDown (chars)
if chars ('1')then
shoot:=true
else
shoot:=false
end if
if
true then
drawfilloval(a,b,20,2,green)
a+=10
delay(10)
end if
cls
end loop

Why does it shoot automatically not when the 1 key is pressed
I am not looking ofr code handouts only help ...

[Tony]

What condition does your code say needs to happen, for the shot to fire?

[nick4563]

I think it says that shhot needs to be true to fire the bulllet... At least that was what i was going for.

[nick4563]

I think it says that shhot needs to be true to fire the bulllet... At least that was what i was going for.

[nick4563]

if
**true then
drawfilloval(a,b,20,2,green)
a+=10
delay(10)
end if


**this is the section of code that is supposed to make the bullet appear and then shoot when shoot=true**

[Tony]

nick4563 @ Thu Jan 13, 2011 2:26 pm wrote:

if
**true then
drawfilloval(a,b,20,2,green)
a+=10
delay(10)
end if

Where does this mention the "shoot" variable?

[DemonWasp]

You never use the value of the shoot variable to do anything. You need to, depending on that value, either shoot or not shoot.

[nick4563]

Here is my new code for the bullet...
am using the values x2 and y1 for a and b so that the bullet shoots from the players box (I know using a box for a character is LAME but im a noob)


The bullet goes ten pixels in front of the character and then follows him, How do i get rid of that.

Turing:

var a : int := x2     var b : int := y1         if chars ('1') then %bullet shoots only when shoot = true         shoot := true     end if     if shoot = true then         a += 10         drawfilloval (a, b, 10, 10, red)         delay (5)     end if     if a > 389 then % sets bullet back after reaching the end of the screen         shoot := false     end if

%I also have this seperate bullet code that works

Turing:

var shoot : boolean shoot := false var chars : array char of boolean var a : int := 20 var b : int := 20 loop Input.KeyDown (chars)     if chars ('1') then         shoot := true     end if     if shoot = true then         a +=10         drawfilloval (a, b, 20, 2, green)         delay (10)         cls     end if end loop

[Tony]

nick4563 @ Fri Jan 14, 2011 1:34 pm wrote:

The bullet goes ten pixels in front of the character and then follows him, How do i get rid of that.

I would imagine that you are using your character's position to figure out the bullets position; which doesn't make sense after the bullet has been fired.

[nick4563]

How would I be able to have the bullet originate at the characters position but progress away once shot??