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Newcomers DBPro Corner / Running IF branch commands only once untill..?

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Pyromaniac
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Joined: 8th Jan 2003
Location: United Kingdom
Posted: 8th Jan 2003 23:34
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Im pretty new to darkbasic and, following the advice on other posts on this forum, ive decided to start small and create a simple "pong" game.

I have all the basics in place (sprites, movement, etc) but ive hit a problem.

when the ball goes out of the screen, i want the program to add one to the score, but even though the ball says outside the screen for a split second, the IF commands repeat several times

I cant figure a way around this so i though you guys could help me

Below is the offending IF statement(s)

IF SPRITE X(1)
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Pyromaniac
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Posted: 8th Jan 2003 23:46
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Sorry here's the code



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Pyromaniac
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Posted: 8th Jan 2003 23:47
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Im having a bad day

Here's the REAL code



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Kentaree
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Posted: 8th Jan 2003 23:49
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Your problem is that the sprite changes direction, but is still outside of the screen. It would help if you placed the sprite in the middle of the playing area each time someone scores a point.

Whatever I did I didn't do it!
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Pyromaniac
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Posted: 9th Jan 2003 18:02
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That works in theory but when i try it, it still adds more than one to the score. What i really need is something to tell darkbasic "only do these commands once when this IF is activated untill the ball returns to the center" if you understand what i mean




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Arrow
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Joined: 1st Jan 2003
Location: United States
Posted: 9th Jan 2003 18:50
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Is the code where you score located inside the loop?

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Moggie100
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Joined: 15th Oct 2002
Location: Behind You...
Posted: 11th Jan 2003 20:45
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its possibly to do with speeds, math can be dont much quicker than positioning spites, so try positioning the sprite then adding score after its moved, something like this:

in the main loop:


then after the main loop in the 'Socre' routine:


assuming that the score for the player is 'playerscore' and that your screen resolution in the game is 640x480, that should work.

Life is like a hot bath, the longer you're in it, the more wrinkles you get.
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