RosettaCodeData/Task/Brownian-tree/AutoHotkey/brownian-tree.ahk
2023-07-01 13:44:08 -04:00

53 lines
825 B
AutoHotkey

SetBatchLines -1
Process, Priority,, high
size := 400
D := .08
num := size * size * d
field:= Object()
field[size//2, size//2] := true ; set the seed
lost := 0
Loop % num
{
x := Rnd(1, size), y := Rnd(1, size)
Loop
{
oldX := X, oldY := Y
x += Rnd(-1, 1), y += Rnd(1, -1)
If ( field[x, y] )
{
field[oldX, oldY] := true
break
}
If ( X > Size ) or ( Y > Size) or ( X < 1 ) or ( Y < 1 )
{
lost++
break
}
}
}
pToken := Gdip_startup()
pBitmap := Gdip_CreateBitmap(size, size)
loop %size%
{
x := A_index
Loop %size%
{
If ( field[x, A_Index] )
{
Gdip_SetPixel(pBitmap, x, A_Index, 0xFF0000FF)
}
}
}
Gdip_SaveBitmapToFile(pBitmap, "brownian.png")
Gdip_DisposeImage(pBitmap)
Gdip_Shutdown(pToken)
Run brownian.png
MsgBox lost %lost%
Rnd(min, max){
Random, r, min, max
return r
}