Fractal tree: Difference between revisions
Initial FutureBasic task solution added
(→{{header|Evaldraw}}: add gif for Fractal Tree) |
(Initial FutureBasic task solution added) |
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Line 1,437:
g.show[]
</syntaxhighlight>
=={{header|FutureBasic}}==
<syntaxhighlight lang="futurebasic">
_window = 1
_wndWidth = 680
void local fn BuildWindow
window _window, @"Fractal Tree", ( 0, 0, _wndWidth, 600 )
WindowSetBackgroundColor( _window, fn ColorBlack )
WindowSubclassContentView( _window )
end fn
local fn PlotFractalTree( x1 as double, y1 as double, size as long, angle as double, spread as long, depth as long, scale as double )
double x2, y2
pen 1.0, fn ColorGreen, NSLineCapStyleSquare
// Convert angle to radians
x2 = x1 + size * cos(angle * pi / 180)
y2 = y1 + size * sin(angle * pi / 180)
line x1, y1, x2, y2
if ( depth > 0 )
fn PlotFractalTree( x2, y2, size * scale, angle - spread, spread, depth - 1, scale )
fn PlotFractalTree( x2, y2, size * scale, angle + spread, spread, depth - 1, scale )
end if
end fn
void local fn DoDialog( ev as long, tag as long )
select ( tag )
case _windowContentViewTag
double spread = ( 80.0 / (_wndWidth / 2 ) ) * 90
fn PlotFractalTree( _wndWidth / 2, 550, 140, -90, spread, 10, 0.75 )
end select
select ( ev )
case _windowWillClose : end
end select
end fn
on dialog fn DoDialog
fn BuildWindow
HandleEvents
</syntaxhighlight>
[[file:Fractal_tree_FutureBasic.png]]
=={{header|Go}}==
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