Jump to content

Barnsley fern: Difference between revisions

Barnsley fern (view source)

Revision as of 15:10, 20 May 2021

9,917 bytes added ,  3 years ago
m
→‎{{header|Phix}}: added syntax colouring the hard way
No edit summary
m (→‎{{header|Phix}}: added syntax colouring the hard way)
Line 1,788:
=={{header|Phix}}==
{{libheader|Phix/pGUI}}
{{libheader|Phix/online}}
output: [https://imgur.com/a/04ZZZt9 on imgur]
You can run this online [http://phix.x10.mx/p2js/BarnsleyFern.htm here], or see the output [https://imgur.com/a/04ZZZt9 on imgur]
<lang Phix>-- demo\rosetta\BarnsleyFern.exw
<!--<lang Phix>(phixonline)-->
include pGUI.e
<span style="color: #000080;font-style:italic;">--
 
-- pwa\phix\BarnsleyFern.exw
Ihandle dlg, canvas
-- =========================
cdCanvas cddbuffer, cdcanvas
--</span>
 
<span style="color: #008080;">with</span> <span style="color: #008080;">javascript_semantics</span>
function redraw_cb(Ihandle /*ih*/, integer /*posx*/, integer /*posy*/)
<span style="color: #008080;">include</span> <span style="color: #000000;">pGUI</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
atom {x,y,r} @= 0
integer {width, height} = IupGetIntInt(canvas, "DRAWSIZE")
<span style="color: #004080;">Ihandle</span> <span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">canvas</span>
cdCanvasActivate(cddbuffer)
<span style="color: #004080;">cdCanvas</span> <span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">cdcanvas</span>
for i=1 to 20000 do
r = rand(100)
<span style="color: #008080;">function</span> <span style="color: #000000;">redraw_cb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">Ihandle</span> <span style="color: #000080;font-style:italic;">/*canvas*/</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">integer</span> <span style="color: #000080;font-style:italic;">/*posx*/</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">integer</span> <span style="color: #000080;font-style:italic;">/*posy*/</span><span style="color: #0000FF;">)</span>
{x, y} = iff(r<=1? { 0, 0.16*y } :
<span style="color: #004080;">atom</span> <span style="color: #000000;">x</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">y</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">0</span>
iff(r<=8? { 0.20*x-0.26*y, 0.23*x+0.22*y+1.60} :
<span style="color: #004080;">integer</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">width</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">height</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupGetIntInt</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"DRAWSIZE"</span><span style="color: #0000FF;">)</span>
iff(r<=15?{-0.15*x+0.28*y, 0.26*x+0.24*y+0.44} :
<span style="color: #7060A8;">cdCanvasActivate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">)</span>
{ 0.85*x+0.04*y,-0.04*x+0.85*y+1.60})))
<span style="color: #008080;">for</span> <span style="color: #000000;">i</span><span style="color: #0000FF;">=</span><span style="color: #000000;">1</span> <span style="color: #008080;">to</span> <span style="color: #000000;">100000</span> <span style="color: #008080;">do</span>
cdCanvasPixel(cddbuffer, width/2+x*60, y*60, #00FF00)
<span style="color: #004080;">integer</span> <span style="color: #000000;">r</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">rand</span><span style="color: #0000FF;">(</span><span style="color: #000000;">100</span><span style="color: #0000FF;">)</span>
end for
<span style="color: #000080;font-style:italic;">-- {x, y} = iff(r&lt;=1? { 0, 0.16*y } :
cdCanvasFlush(cddbuffer)
-- iff(r&lt;=8? { 0.20*x-0.26*y, 0.23*x+0.22*y+1.60} :
return IUP_DEFAULT
-- iff(r&lt;=15?{-0.15*x+0.28*y, 0.26*x+0.24*y+0.44} :
end function
-- { 0.85*x+0.04*y,-0.04*x+0.85*y+1.60})))</span>
 
<span style="color: #008080;">if</span> <span style="color: #000000;">r</span><span style="color: #0000FF;"><=</span><span style="color: #000000;">1</span> <span style="color: #008080;">then</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">x</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">y</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span> <span style="color: #000000;">0</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">0.16</span><span style="color: #0000FF;">*</span><span style="color: #000000;">y</span> <span style="color: #0000FF;">}</span>
function map_cb(Ihandle ih)
<span style="color: #008080;">elsif</span> <span style="color: #000000;">r</span><span style="color: #0000FF;"><=</span><span style="color: #000000;">8</span> <span style="color: #008080;">then</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">x</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">y</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span> <span style="color: #000000;">0.20</span><span style="color: #0000FF;">*</span><span style="color: #000000;">x</span><span style="color: #0000FF;">-</span><span style="color: #000000;">0.26</span><span style="color: #0000FF;">*</span><span style="color: #000000;">y</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">0.23</span><span style="color: #0000FF;">*</span><span style="color: #000000;">x</span><span style="color: #0000FF;">+</span><span style="color: #000000;">0.22</span><span style="color: #0000FF;">*</span><span style="color: #000000;">y</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1.60</span><span style="color: #0000FF;">}</span>
cdcanvas = cdCreateCanvas(CD_IUP, ih)
<span style="color: #008080;">elsif</span> <span style="color: #000000;">r</span><span style="color: #0000FF;"><=</span><span style="color: #000000;">15</span> <span style="color: #008080;">then</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">x</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">y</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{-</span><span style="color: #000000;">0.15</span><span style="color: #0000FF;">*</span><span style="color: #000000;">x</span><span style="color: #0000FF;">+</span><span style="color: #000000;">0.28</span><span style="color: #0000FF;">*</span><span style="color: #000000;">y</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">0.26</span><span style="color: #0000FF;">*</span><span style="color: #000000;">x</span><span style="color: #0000FF;">+</span><span style="color: #000000;">0.24</span><span style="color: #0000FF;">*</span><span style="color: #000000;">y</span><span style="color: #0000FF;">+</span><span style="color: #000000;">0.44</span><span style="color: #0000FF;">}</span>
cddbuffer = cdCreateCanvas(CD_DBUFFER, cdcanvas)
<span style="color: #008080;">else</span> <span style="color: #0000FF;">{</span><span style="color: #000000;">x</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">y</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #0000FF;">{</span> <span style="color: #000000;">0.85</span><span style="color: #0000FF;">*</span><span style="color: #000000;">x</span><span style="color: #0000FF;">+</span><span style="color: #000000;">0.04</span><span style="color: #0000FF;">*</span><span style="color: #000000;">y</span><span style="color: #0000FF;">,-</span><span style="color: #000000;">0.04</span><span style="color: #0000FF;">*</span><span style="color: #000000;">x</span><span style="color: #0000FF;">+</span><span style="color: #000000;">0.85</span><span style="color: #0000FF;">*</span><span style="color: #000000;">y</span><span style="color: #0000FF;">+</span><span style="color: #000000;">1.60</span><span style="color: #0000FF;">}</span>
cdCanvasSetBackground(cddbuffer, CD_WHITE)
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
cdCanvasSetForeground(cddbuffer, CD_RED)
<span style="color: #7060A8;">cdCanvasPixel</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">width</span><span style="color: #0000FF;">/</span><span style="color: #000000;">2</span><span style="color: #0000FF;">+</span><span style="color: #000000;">x</span><span style="color: #0000FF;">*</span><span style="color: #000000;">50</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">y</span><span style="color: #0000FF;">*</span><span style="color: #000000;">50</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">CD_DARK_GREEN</span><span style="color: #0000FF;">)</span>
return IUP_DEFAULT
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
end function
<span style="color: #7060A8;">cdCanvasFlush</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">)</span>
 
<span style="color: #008080;">return</span> <span style="color: #004600;">IUP_DEFAULT</span>
function esc_close(Ihandle /*ih*/, atom c)
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
if c=K_ESC then return IUP_CLOSE end if
return IUP_CONTINUE
<span style="color: #7060A8;">IupOpen</span><span style="color: #0000FF;">()</span>
end function
 
<span style="color: #000000;">canvas</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupCanvas</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">Icallback</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"redraw_cb"</span><span style="color: #0000FF;">),</span><span style="color: #008000;">"RASTERSIZE=340x540"</span><span style="color: #0000FF;">)</span>
procedure main()
<span style="color: #000000;">dlg</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">IupDialog</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">,</span><span style="color: #008000;">`TITLE="Barnsley Fern"`</span><span style="color: #0000FF;">)</span>
IupOpen()
 
<span style="color: #7060A8;">IupMap</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">)</span>
canvas = IupCanvas(NULL)
<span style="color: #000000;">cdcanvas</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">cdCreateCanvas</span><span style="color: #0000FF;">(</span><span style="color: #004600;">CD_IUP</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">canvas</span><span style="color: #0000FF;">)</span>
IupSetAttribute(canvas, "RASTERSIZE", "340x620") -- initial size
<span style="color: #000000;">cddbuffer</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">cdCreateCanvas</span><span style="color: #0000FF;">(</span><span style="color: #004600;">CD_DBUFFER</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">cdcanvas</span><span style="color: #0000FF;">)</span>
IupSetCallback(canvas, "MAP_CB", Icallback("map_cb"))
<span style="color: #7060A8;">IupSetAttribute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"RASTERSIZE"</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">NULL</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- release the minimum limitation</span>
 
<span style="color: #7060A8;">IupShow</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">)</span>
dlg = IupDialog(canvas)
<span style="color: #008080;">if</span> <span style="color: #7060A8;">platform</span><span style="color: #0000FF;">()!=</span><span style="color: #004600;">JS</span> <span style="color: #008080;">then</span>
IupSetAttribute(dlg, "TITLE", "Barnsley Fern")
<span style="color: #7060A8;">IupMainLoop</span><span style="color: #0000FF;">()</span>
IupSetCallback(dlg, "K_ANY", Icallback("esc_close"))
<span style="color: #7060A8;">IupClose</span><span style="color: #0000FF;">()</span>
IupSetCallback(canvas, "ACTION", Icallback("redraw_cb"))
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
 
<!--</lang>-->
IupMap(dlg)
IupSetAttribute(canvas, "RASTERSIZE", NULL) -- release the minimum limitation
IupShowXY(dlg,IUP_CENTER,IUP_CENTER)
IupMainLoop()
IupClose()
end procedure
 
main()</lang>
 
=={{header|PicoLisp}}==
Petelomax
7,806

edits

Retrieved from "https://rosettacode.org/wiki/Special:MobileDiff/265220"
Cookies help us deliver our services. By using our services, you agree to our use of cookies.
More information