I need help. In the DPOLY DEF (which should draw a regular polygon), using GLINE works perfectly, but using my own DLINE DEF (which should draw a thicker line using GCOPY) results in a mess of lines. Using DLINE seperatly worked before so I'm confused :/ Even more, upon using DLINE, GLINE doesn't do the correct line either.

Because DX, DY, etc are initialized outside the DEF, the variables with these same names inside the DEF are assumed to refer to the global ones, not local variables that happen to have the same names.

They're not, I checked. I even changed the variables in DLINE so they don't match with the ones in DPOLY, but still, no difference. Thanks for the reply though :)

oh wait, got it. it was the vatiable I all along.

Mike could you do a very short program,like ten lines showing how to do a simple polygon

It's really just a bunch of trig functions. Here is a demo program showing how to draw a regular polygon, set the amount of sides, position, rotation, etc. If perhaps you need something more advanced such as 3D polygons then thats a little too much out of my league c:. Hope it helps!

sorry that's what i meant a 3d polygon