Quote from: Freyaday on May 12, 2011, 09:15:54 pm

I'm trying to figure out what the purpose is behind these constants. Wouldn't it just be the same thing as, say, putting in the number?

Yes, but it's easier if you change something.  For instance, let's say you have a piece of code that draws a tilemap to the screen that's 8*12 sprites large.  But what if you wanted to add a HUD to the side of the screen and make it 8*10?  Then you'd have to find all of those 12s in your code and change them to 10s.  Or you could have used the (hopefully) soon to be Axe equivalent of a #define() when you wrote the code in the first place, so all you'd have to do is change the line with the #define() in it from a 12 to a 10 to fix all of those lines of code.

Question: Why not just pick a random spot in memory near the end of a buffer or pick a variable, store the number, and resolve never to modify it?

Question:
What exactly happens if I leave a parenthesis open?  Obviously, it'll start glitching the program up, but in what ways?  What precisely does it do to the code?

Observation one for your metaphor on ideology seems unsupported.

How did you arrive by that observation?

A workaround:

Invert the screen, use Line(), then invert the screen again?

DrawInv
Line(x1,y1,x2,y2)
DrawInv


I think you wanted a line-checking algorithm?

This isn't probably the fastest one around, but it works.
I used a variant of algorithm in one of my games, Light (which is dormant) to check for pixel collisions along a line.  You should probably tweak this to suit your needs, especially when it returns the coordinates, which I didn't fill out.

It's untested, but should work?  If it doesn't, I have another variant of this in the Routines thread (except it draws lines, instead of returning coordinates): http://ourl.ca/4129/138496
I know THAT one works

.LINE
ClrDraw
50->A->B
2->L

Repeat getKey(15)
  If getKey
    getKey(3)-getKey(2)+A->A
    getKey(1)-getKey(4)+B->B
    getKey(10)-getKey(11)+L->L
    L=0+L->L
    sub(LIN,30,30,A,B,L)    //r1 and r2 are the x and y coordinates of the starting point - it radiates out to (r3,r4).
  End
  DispGraph
End
Return

Lbl LIN
  If abs(r4-r2)>abs(r3-r1)
    Exch(°r1,°r2,2)
    Exch(°r3,°r2,2)
  End
  r1>r3->K
  abs(r3-r1)->S/2->V
  abs(r4-r2)->T
  r2->Y<r4*2-1->W
  For(Z,0,abs(r3-r1))
    Z->X
    If K
      -X->X
    End
    If U
      If Pxl-Test(Y,X+r1)
        Return // Coordinates
      End
    Else
      If Pxl-Test(X+r1,Y)
        Return // Coordinates
      End
    End
    1->I
    While I
      I-1->I
      If V-T->V>99
        Y+W->Y
        V+S->V
      End
    End
    DispGraph  //DispGraph and Pause are added to show how the line radiates outwards
    Pause 50
  End
Return

I guess so.  From looking at the source, it doesn't look like he intended for that to happen...

Edit: Ninja'd

Hi, Waave!
Welcome to Omnimaga!

So, what was the game you made about?

Wait.  How are they similar?

(I'm pretty sure you're going to jump in with an obvious answer that I overlooked...)