I am very interested if anyone knows how to do this without recursive sub ?
'another look at doodlebot.bas SmallBASIC 0.12.6 [B+=MGA] 2016-05-17
' inspired by Rick's doodlebot!
sub recursive(size)
local i 'x, y, angle need to be global
for i = 1 to 3
x2 = x + cos(angle) * size
y2 = y - sin(angle) * size
line x, y, x2, y2
x = x2 : y = y2
angle += A120
if size > 15 then recursive size / 2
next
end
const A120 = 2 * pi / 3 : x = xmax / 2 : y = ymax / 2
start = min( (xmax - 20) / 2, (ymax - 20) / 2 )
? "press any to quit..."
while len(inkey) = 0
colormode ++ : colormode = colormode % 6
for i = 1 to 12
recursive start
angle = i * pi / 6
if colormode <= 2 then
color (rnd * 15) \ 1 + 1
else
select case (i mod 4)
case 0 : color 9
case 1 : color 14
case 2 : color 12
case 3 : color 11
end select
fi
showpage
delay 200
next
wend
From SmallBASIC forum:
Not verified on SmallBASIC, but WHILE...WEND or another loop inside a function, usually have an advantage over a recursive function:
1. A loop does the same work of a recursive function.
2. A loop is easier and faster to debug then recursive function.
3. A loop is much faster then recursive function (less overhead).
4. A loop does not require saving variables in the global scope.
While recursive function is a magic solution for lots of things - it is usually a poor solution compares to a loop within a function.
I am thinking, in this case, a recursive procedure IS a "magic solution". I do not disagree with quote in general, but for this case?
