Anonymous user
Barnsley fern: Difference between revisions
no edit summary
No edit summary |
|||
Line 825:
}</lang>
=={{header|Lua}}==
Needs LÖVE 2D Engine
<lang Lua>
g = love.graphics
wid, hei = g.getWidth(), g.getHeight()
function choose( i, j )
local r = math.random()
if r < .01 then return 0, .16 * j
elseif r < .07 then return .2 * i - .26 * j, .23 * i + .22 * j + 1.6
elseif r < .14 then return -.15 * i + .28 * j, .26 * i + .24 * j + .44
else return .85 * i + .04 * j, -.04 * i + .85 * j + 1.6
end
end
function createFern( iterations )
local hw, x, y, scale = wid / 2, 0, 0, 45
local pts = {}
for k = 1, iterations do
pts[1] = { hw + x * scale, hei - 15 - y * scale,
20 + math.random( 80 ),
128 + math.random( 128 ),
20 + math.random( 80 ), 150 }
g.points( pts )
x, y = choose( x, y )
end
end
function love.load()
math.randomseed( os.time() )
canvas = g.newCanvas( wid, hei )
g.setCanvas( canvas )
createFern( 15e4 )
g.setCanvas()
end
function love.draw()
g.draw( canvas )
end
</lang>
=={{header|Nim}}==
<lang Nim>
| |||