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OrbWorks Community Forum • View topic - a couple of annoyances

a couple of annoyances

Discuss PocketC for CE (including Desktop Edition)

Postby tikki on Tue Sep 18, 2007 1:03 am

1. the pocketC knowledge base for CE is closed..
2. o cant get a code to work properly.

i want to make a gride, but not use "line" for every line. so i was thinking about using the "for" statement.
so heres my code:
Code: Select all
int main()
{
int i,f;
f=6;
for (i=0; i<200; i++)
{
line (0,i,240,i);
}
}


but if you test that, it draws a line at every pixel, obviously not a fine grid.

so then i tried adding "f" into the last part of the "for statement"
such as:
Code: Select all
for (i=0; i<200; f++)
for (i=0; i<200; i++f)
for (i=0; i<200; i+++f)
--others--


but none worked.

so how would i beable to change the amount of steps the for statement does? so instead of every pixel it would draw a line every 5 pixels? or is there no support for that? if there isn't, know of any free C compilers for the PPC that can support it?:?:

thanks for your help


rawr!
rawr!
tikki
 
Posts: 2
Joined: Tue Sep 18, 2007 12:48 am

Postby samps on Tue Sep 18, 2007 2:57 am

int main()
{
int i,f;
f=6;
for (i=0; i<200; i++)
{
line (0,i,240,i);
}
}


Your i is incremented by one for each turn of the loop, that's why your grid is so fine grained.

Use your f to multiply your Y-axis values before you draw the lines:

int main()
{
int i,f;
f=6;
for (i=0; i<34; i++)
{
line (0,i*f,240,i*f);
}
}



cheers
Samps

Ubuntu user #82
Ubuntu user #82
samps
 
Posts: 143
Joined: Tue Feb 20, 2001 12:33 am
Location: Australia

Postby tikki on Tue Sep 18, 2007 2:06 pm

ok, thank you very much.
that was simple...:?

rawr!
rawr!
tikki
 
Posts: 2
Joined: Tue Sep 18, 2007 12:48 am


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