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Index › Programming Questions & Help › Programs › getting mouseX and Y values
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getting mouseX and Y values (Read 704 times)
avignon
getting mouseX and Y values
Sep 21st, 2007, 11:15pm  
Is it true that I can only get a value at one time per a frame (that is, one time at an execution of draw() function)...

I wrote a code, that prints out delayed time using millis() function, and mouseX value at the beginning of draw(). Then it has the for-statement like "for(int i=0; i<10000; i++)". After that, it print out delayed time and mouseX, again.
I found difference at two time value but got the same value for mouseX.

Though my question seems true with the above experiment, I just want to make sure it.
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fjen
Re: getting mouseX and Y values
Reply #1 - Sep 22nd, 2007, 8:06am  
yes. mouse values are set in between draw()s, once per frame.

Code:

void draw()
{
    println ( mouseX + " " + mouseY );
    delay( 1000 );
    println ( mouseX + " " + mouseY );
    println("");
}
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fry
Re: getting mouseX and Y values
Reply #2 - Sep 23rd, 2007, 9:49am  
to get values more than once per frame, use the mouseMoved(), mousePressed(), or mouseDragged() events:

http://processing.org/reference/mouseMoved_.html
http://processing.org/reference/mousePressed_.html
etc.

these events will be queued to the end of draw(), then called in succession. the mouseX/Y values will be updated on each call.
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