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DarkBASIC Discussion / Mouse Click "Buffer" Clear Help needed

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DemonHill
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Posted: 3rd Nov 2009 23:29
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I have a simple menu selection with a next event key

However as I click my button it seems to fill up a buffer and even if I release quickly the next events are triggered.
The waitbtn method I found in thsi forum doesn't seem to help.
Session numbers are incremented on completion of the session with in the qualifying gosub statements...

Any one can help me ?




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DemonHill
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Posted: 4th Nov 2009 00:06
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Thought I'd share what I managed to do to solve this

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Latch
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Posted: 4th Nov 2009 01:28
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A variation of your code:



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TheComet
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Posted: 4th Nov 2009 12:55 Edited at: 4th Nov 2009 12:56
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Can you explain & to me again?

If I take 80&55, then it AND's the bits together, right?

0101'0000
0011'0111
--------------
0001'0000

So the result would be 16? Why use it with your code?

Thanks, TheComet


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Libervurto
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Posted: 4th Nov 2009 13:27
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@Comet
since left mouse click is 1 Latch's code will only return 1 if the left mouse button is clicked. The other buttons are ignored.
You could change the 1 to 2 and then it would control the right button.

"With game, we create these elaborate worlds in our minds, and the computer is there to do the bookkeeping." - Will Wright
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TheComet
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Posted: 4th Nov 2009 16:32
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So, is



faster than



?

TheComet


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Caleb1994
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Posted: 4th Nov 2009 19:32
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Quote: "0101'0000
0011'0111
--------------
0001'0000
"


With this is mind.

Mouseclick() can either be 0 or 1. in other words:

00000000
or
10000000

and 1 is:

10000000

it all depends on which is faster & or =. and since with = db has to figure out if it's a boolean test or a assignment operator & should be faster. so here is what db does with =

first it figures out what is (bool test or assignment)
next it tests for your condition.

and with &

gets the & and value
checks if it's greater then 0

just from that it should be faster to use the &

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TDK
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Posted: 4th Nov 2009 21:10
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Quote: "and 1 is:

10000000"


Actually, 10000000 in binary is 128 - not 1!

TDK

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Caleb1994
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Posted: 4th Nov 2009 21:20 Edited at: 4th Nov 2009 21:50
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Quote: "Actually, 10000000 in binary is 128 - not 1!
"


really? how so? i thought it went like this:

1 = 10000000
2 = 01000000
3 = 11000000
4 = 00100000
5 = 10100000
6 = 01100000
7 = 11100000
8 = 00010000

and so on? am i wrong?

Wait! I just realized I have it backwords

1 = 00000001
2 = 00000010
3 = 00000011
4 = 00000100
5 = 00000101
6 = 00000110
7 = 00000111
8 = 00001000

hahaha ok got it

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TheComet
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Posted: 4th Nov 2009 21:38
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In binary, you read from right to left.

0 = 0000'0000
1 = 0000'0001
2 = 0000'0010
3 = 0000'0011
4 = 0000'0100
5 = 0000'0101
6 = 0000'0110
7 = 0000'0111
8 = 0000'1000

TheComet


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Caleb1994
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Posted: 4th Nov 2009 21:51
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I just edited that but i just hadn't refreshed in 20 minutes sorry didn't see your post comet thanks anyway lol

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Latch
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Posted: 5th Nov 2009 01:22
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@TheComet
Quote: "So, is

if mouseclick()&1

faster than

if mouseclick()

?"


They are different. If mouseclick()&1 is only testing for a click value of 1 (left click). If mousclick() is testing for any mouse click value. In terms of speed, because you aren't doing the additional & operation, If mouseclick() should be faster.

Quote: "Why use it with your code?"

Like Obese87 was saying, you use & in this case to filter out only the results you want bit wise. I wasn't interested in any mouse value except 1. So instead of

if mouseclick()=1 then nmc=1

I can just

nmc=mouseclick() & 1

to filter the values of mouseclick() to just 1.

Enjoy your day.
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