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Index › Programming Questions & Help › Programs › Help on a little Program.
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Help on a little Program. (Read 536 times)
Hawk
Help on a little Program.
Jan 21st, 2008, 6:31pm  
Hi,
I´ve been searching/ testing for hours, but i can´t write a functionally programm, which draws with for/while points on the window.
For instance the first point should be drawed at position 0,0 then the program should draw points with a distance of 10 pxl, till the window is full. And this horizontal and vertical.
Sry for my "bad" English, i hope you can understand my problem.

Your help is appreciated, Thanks.
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antiplastik
Re: Help on a little Program.
Reply #1 - Jan 21st, 2008, 7:46pm  
post your code so we can see where is your mistake!

here is something which might help :

Code:
background(255); stroke(0);
for (int x = 0; x < width; x += 10) {
  for (int y = 0; y < height; y += 10) {
    point(x, y);
  }
}
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WWW  
Hawk
Re: Help on a little Program.
Reply #2 - Jan 21st, 2008, 8:11pm  
Hi, thx.
The thing with for is no problem, but i can´t get my while program to go.
I´ve tested several possibilties, but i don´t know what´s wrong.

int x=0;
int y=0;
while (x<80){
point(x,y);
 x=x+5;
while (y<80) {
 point(x,y);
  y=y+5;
}}
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rocktopus
Re: Help on a little Program.
Reply #3 - Feb 1st, 2008, 8:29pm  
Hope this helps?

int x=0;
int y=0;
while (x<80){
 point(x,y);
 while (y<80){
   point(x,y);
   y+=5;
 }
x+=5;
y=0;
}

-r
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alphachapmtl
Re: Help on a little Program.
Reply #4 - Feb 2nd, 2008, 12:51am  
Have you put the proper structure around your code ?
You need a setup() method and a  draw() method.

Try the following:

void setup() {
 size(300,300);
 background(153);
 noLoop();
}//setup()

void draw() {
 int x=0;
 int y=0;
 while (x<80){
   point(x,y);
   x=x+5;
   while (y<80) {
     point(x,y);
     y=y+5;
   }
 }
}//draw()
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