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Brownian tree: Difference between revisions

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Brownian tree (view source)

Revision as of 19:08, 20 May 2021

11,430 bytes added ,  2 years ago
m
→‎{{header|Phix}}: added syntax colouring the hard way
m (→‎{{header|Phix}}: added syntax colouring the hard way)
Line 2,884:
As-is, runs in about 2s, but can be very slow when bigger or (even worse) resize-able.
{{libheader|Phix/pGUI}}
<!--<lang Phix>(phixonline)-- demo\rosetta\BrownianTree.exw>
<span style="color: #000080;font-style:italic;">-- demo\rosetta\BrownianTree.exw</span>
include pGUI.e
<span style="color: #008080;">include</span> <span style="color: #000000;">pGUI</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
 
Ihandle dlg, canvas
<span style="color: #004080;">Ihandle</span> <span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">canvas</span>
cdCanvas cddbuffer, cdcanvas
<span style="color: #004080;">cdCanvas</span> <span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">cdcanvas</span>
 
function redraw_cb(Ihandle /*ih*/, integer /*posx*/, integer /*posy*/)
<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;">/*ih*/</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>
integer x,y,ox,oy
<span style="color: #004080;">integer</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: #000000;">ox</span><span style="color: #0000FF;">,</span><span style="color: #000000;">oy</span>
integer {width, height} = IupGetIntInt(canvas, "DRAWSIZE")
<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>
sequence grid = repeat(repeat(0,width),height)
<span style="color: #004080;">sequence</span> <span style="color: #000000;">grid</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">repeat</span><span style="color: #0000FF;">(</span><span style="color: #000000;">0</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>
integer xy = floor(width*height*0.8)
<span style="color: #004080;">integer</span> <span style="color: #000000;">xy</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">floor</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: #000000;">0.8</span><span style="color: #0000FF;">)</span>
--atom t = time()+1
<span style="color: #000080;font-style:italic;">--atom t = time()+1</span>
grid[floor(width/2)][floor(height/2)] = 1
<span style="color: #000000;">grid</span><span style="color: #0000FF;">[</span><span style="color: #7060A8;">floor</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: #7060A8;">floor</span><span style="color: #0000FF;">(</span><span style="color: #000000;">height</span><span style="color: #0000FF;">/</span><span style="color: #000000;">2</span><span style="color: #0000FF;">)]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span>
cdCanvasActivate(cddbuffer)
<span style="color: #7060A8;">cdCanvasActivate</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">)</span>
cdCanvasClear(cddbuffer)
<span style="color: #7060A8;">cdCanvasClear</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">)</span>
for i=1 to xy do
<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;">xy</span> <span style="color: #008080;">do</span>
x = rand(width) y = rand(height)
<span style="color: #000000;">x</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">rand</span><span style="color: #0000FF;">(</span><span style="color: #000000;">width</span><span style="color: #0000FF;">)</span> <span style="color: #000000;">y</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">rand</span><span style="color: #0000FF;">(</span><span style="color: #000000;">height</span><span style="color: #0000FF;">)</span>
ox = x oy = y
<span style="color: #000000;">ox</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">x</span> <span style="color: #000000;">oy</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">y</span>
while x>=1 and x<=width
<span style="color: #008080;">while</span> <span style="color: #000000;">x</span><span style="color: #0000FF;">>=</span><span style="color: #000000;">1</span> <span style="color: #008080;">and</span> <span style="color: #000000;">x</span><span style="color: #0000FF;"><=</span><span style="color: #000000;">width</span>
and y>=1 and y<=height do
<span style="color: #008080;">and</span> <span style="color: #000000;">y</span><span style="color: #0000FF;">>=</span><span style="color: #000000;">1</span> <span style="color: #008080;">and</span> <span style="color: #000000;">y</span><span style="color: #0000FF;"><=</span><span style="color: #000000;">height</span> <span style="color: #008080;">do</span>
if grid[y][x] then
<span style="color: #008080;">if</span> <span style="color: #000000;">grid</span><span style="color: #0000FF;">[</span><span style="color: #000000;">y</span><span style="color: #0000FF;">][</span><span style="color: #000000;">x</span><span style="color: #0000FF;">]</span> <span style="color: #008080;">then</span>
grid[oy][ox] = 1
<span style="color: #000000;">grid</span><span style="color: #0000FF;">[</span><span style="color: #000000;">oy</span><span style="color: #0000FF;">][</span><span style="color: #000000;">ox</span><span style="color: #0000FF;">]</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">1</span>
cdCanvasPixel(cddbuffer, ox, oy, #00FF00)
<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;">ox</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">oy</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">#00FF00</span><span style="color: #0000FF;">)</span>
exit
end if <span style="color: #008080;">exit</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
ox = x x += rand(3)-2
<span style="color: #000000;">ox</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">x</span> <span style="color: #000000;">x</span> <span style="color: #0000FF;">+=</span> <span style="color: #7060A8;">rand</span><span style="color: #0000FF;">(</span><span style="color: #000000;">3</span><span style="color: #0000FF;">)-</span><span style="color: #000000;">2</span>
oy = y y += rand(3)-2
<span style="color: #000000;">oy</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">y</span> <span style="color: #000000;">y</span> <span style="color: #0000FF;">+=</span> <span style="color: #7060A8;">rand</span><span style="color: #0000FF;">(</span><span style="color: #000000;">3</span><span style="color: #0000FF;">)-</span><span style="color: #000000;">2</span>
end while
<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
-- -- if making the canvas bigger/resizeable,
<span style="color: #000080;font-style:italic;">-- -- if making the canvas bigger/resizeable,
-- -- put this in so that you can kill it.
-- -- put this in so that you can kill it.
-- if time()>=t then
-- if time()&gt;=t ?{i,xy}then
-- t = time()+1?{i,xy}
-- end if t = time()+1
-- end forif</span>
<span style="color: #008080;">end</span> <span style="color: #008080;">for</span>
cdCanvasFlush(cddbuffer)
<span style="color: #7060A8;">cdCanvasFlush</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">)</span>
return IUP_DEFAULT
<span style="color: #008080;">return</span> <span style="color: #004600;">IUP_DEFAULT</span>
end function
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
 
function map_cb(Ihandle ih)
<span style="color: #008080;">function</span> <span style="color: #000000;">map_cb</span><span style="color: #0000FF;">(</span><span style="color: #004080;">Ihandle</span> <span style="color: #000000;">ih</span><span style="color: #0000FF;">)</span>
cdcanvas = cdCreateCanvas(CD_IUP, ih)
<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;">ih</span><span style="color: #0000FF;">)</span>
cddbuffer = cdCreateCanvas(CD_DBUFFER, cdcanvas)
<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>
cdCanvasSetBackground(cddbuffer, CD_WHITE)
<span style="color: #7060A8;">cdCanvasSetBackground</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">CD_WHITE</span><span style="color: #0000FF;">)</span>
cdCanvasSetForeground(cddbuffer, CD_RED)
<span style="color: #7060A8;">cdCanvasSetForeground</span><span style="color: #0000FF;">(</span><span style="color: #000000;">cddbuffer</span><span style="color: #0000FF;">,</span> <span style="color: #004600;">CD_RED</span><span style="color: #0000FF;">)</span>
return IUP_DEFAULT
<span style="color: #008080;">return</span> <span style="color: #004600;">IUP_DEFAULT</span>
end function
<span style="color: #008080;">end</span> <span style="color: #008080;">function</span>
 
procedure main()
<span style="color: #7060A8;">IupOpen</span><span style="color: #0000FF;">()</span>
IupOpen()
 
<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: #004600;">NULL</span><span style="color: #0000FF;">)</span>
canvas = IupCanvas(NULL)
<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: #008000;">"200x200"</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- fixed size</span>
IupSetAttribute(canvas, "RASTERSIZE", "200x200") -- fixed size
<span style="color: #7060A8;">IupSetCallback</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"MAP_CB"</span><span style="color: #0000FF;">,</span> <span style="color: #7060A8;">Icallback</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"map_cb"</span><span style="color: #0000FF;">))</span>
IupSetCallback(canvas, "MAP_CB", Icallback("map_cb"))
 
<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;">"RESIZE=NO"</span><span style="color: #0000FF;">)</span>
dlg = IupDialog(canvas, "RESIZE=NO")
<span style="color: #7060A8;">IupSetAttribute</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"TITLE"</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"Brownian Tree"</span><span style="color: #0000FF;">)</span>
IupSetAttribute(dlg, "TITLE", "Brownian Tree")
<span style="color: #7060A8;">IupSetCallback</span><span style="color: #0000FF;">(</span><span style="color: #000000;">canvas</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">"ACTION"</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>
IupSetCallback(canvas, "ACTION", Icallback("redraw_cb"))
 
<span style="color: #7060A8;">IupShow</span><span style="color: #0000FF;">(</span><span style="color: #000000;">dlg</span><span style="color: #0000FF;">)</span>
IupMap(dlg)
<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>
IupShowXY(dlg,IUP_CENTER,IUP_CENTER)
<span style="color: #7060A8;">IupMainLoop</span><span style="color: #0000FF;">()</span>
IupMainLoop()
<span style="color: #7060A8;">IupClose</span><span style="color: #0000FF;">()</span>
IupClose()
<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
end procedure
<!--</lang>-->
 
main()</lang>
 
=={{header|PicoLisp}}==
Petelomax
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edits

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