Here the Cobra Version of 3D Starfield.
P.S. I have also Made COPPERFIELD in Cobra too and the files size is 80K but it is not done yet.
// Small 3D STARFIELD program in COBRAPROGGY :)
PROGRAM
uses pure2d,keyset
Const MAX_STAR=5000
const STAR_SPEED=1
const WIDTH=640
const HEIGHT=480
var
Star_x : Array[MAX_STAR] of integer
Star_y : Array[MAX_STAR] of integer
Star_z : Array[MAX_STAR] of integer
s_x,s_y,col,c : integer
Procedure setup_stars()
Begin
For c=0 To MAX_STAR
star_x[c]=Rnd(-(WIDTH),(HEIGHT))
star_y[c]=Rnd(-(HEIGHT),(HEIGHT))
star_z[c]=Rnd(STAR_SPEED,255)
Next
End
Procedure UpdateStar()
Begin
For c=0 To MAX_STAR
star_z[c]=star_z[c]-STAR_SPEED
If star_z[c]<=STAR_SPEED Then star_z[c]=255
s_x=(star_x[c]/star_z[c])+(WIDTH/2)
s_y=(star_y[c]/star_z[c])+(HEIGHT/2)
col=255-star_z[c]
Pixel(s_x, s_y, ToRGBA(col,col,col))
Next
End
begin
OpenScreen(width,height)
setup_stars()
While not keydown(vk_escape)
CLS
UpdateStar()
Flip
Wend
End