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Index › Programming Questions & Help › Syntax Questions › Maths prob just cant get?
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Maths prob just cant get??? (Read 449 times)
MJMC1210
Maths prob just cant get???
Mar 19th, 2007, 9:40pm  
Hey guys, ive a simple question here...
ive a slider set up, i want it to return the value of 1 up to 10 as it moves along the slider bar...
Here is my code, the slider works fine, i just need to change the value of slx that is printing out to go from 1 - 10......
Thanks for any help
CODE:



public class effects extends PApplet {


int bottomToolBarHeight = 610;

int topToolBarHeight = 110;

float slx;

float sly;

boolean sliderOver = false;

boolean sliderLock = false;

int sls = 20;

int sliderLineLength;

int sliderLineStart;

int sliderLineEnd;


public void setup()

{


size(800, 700);


sliderLineLength = 200;


sliderLineStart = (width / 100) * 43;


sliderLineEnd = sliderLineStart + sliderLineLength;


slx = sliderLineStart;


sly = 43;

}



public void draw()

{



background(80);


stroke(0);


drawToolbar();


drawSlider();  
                println(""+slx);

}


public void drawToolBarLines()

{


pushMatrix();


fill(255);


rect(sliderLineStart, 56, sliderLineLength, 3);


popMatrix();





}


public void drawSlider()

{


if (mouseX > slx - sls && mouseX < slx + sls && mouseY > sly - sls




&& mouseY < sly + sls) {



sliderOver = true;


} else {



sliderOver = false;





}


pushMatrix();


rect(slx, sly, 5, 25);


popMatrix();

}

void drawToolbar()

{


drawToolBarLines();


drawSlider();

}

public void mousePressed()

{


if (sliderOver) {



sliderLock = true;



} else {



sliderLock = false;


}

}

public void mouseDragged()

{


if (sliderLock) {



if (mouseX < sliderLineStart) {




slx = sliderLineStart;



} else if (mouseX > sliderLineEnd) {




slx = sliderLineEnd;



} else {




slx = mouseX;



}


}

}

public void mouseReleased()

{


sliderLock = false;

}

}
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JohnG
Re: Maths prob just cant get???
Reply #1 - Mar 19th, 2007, 10:08pm  
You just need to change one line:

Code:
//change the commented out line to the uncommented one.
//  println(""+slx);
  println( (float)(slx-sliderLineStart)/sliderLineLength * 10.0);
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MJMC1210
Re: Maths prob just cant get???
Reply #2 - Mar 19th, 2007, 10:14pm  
My god, im sat here looking at it for 4 hours solid.... =) ha! Thanks so much mate
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