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Generate Sierpiński's triangle in golang
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// Generate Sierpiński's triangle | |
// 0********************************************************************2 | |
// ****** ****** ****** ****** ****** ******* ****** ****** | |
// ************ ************ ************ ************ | |
// ********* ********* ******** ********* | |
// ***** ****** ****** ****** | |
// ******************** ******************* | |
// **************** ******** ******** | |
// ***** **** ***** **** | |
// ********** *********** | |
// ****** ******* | |
// **** **** | |
// *********************************** | |
// ******* ****** ******* ****** | |
// *********** ************ | |
// ********* ******** | |
// ***** ****** | |
// ******************** | |
// ******** ******* | |
// ***** **** | |
// ********** | |
// ******* | |
// **** | |
// 1 | |
// | |
// https://www.linuxjournal.com/content/getting-started-ncurses | |
package main | |
import ( | |
c "github.com/rthornton128/goncurses" | |
"math/rand" | |
"time" | |
) | |
func main() { | |
defer c.End() | |
w, err := c.Init() | |
if err != nil { | |
println(err) | |
return | |
} | |
c.CBreak(true) | |
w.Clear() | |
maxY, maxX := w.MaxYX() | |
maxY-- | |
maxX-- | |
points := [3]struct{ y, x int }{{0, 0}, {maxY, maxX / 2}, {0, maxX}} | |
w.MoveAddChar(points[0].y, points[0].x, '0') | |
w.MoveAddChar(points[1].y, points[1].x, '1') | |
w.MoveAddChar(points[2].y, points[2].x, '2') | |
rand.Seed(time.Now().Unix()) | |
yi := rand.Int() % maxY | |
xi := rand.Int() % maxX | |
for i := 0; i < 10_000; i++ { | |
ri := rand.Int() % 3 | |
yi = (yi + points[ri].y) / 2 | |
xi = (xi + points[ri].x) / 2 | |
if xi == 0 { // don't clobber our starting 0 | |
continue | |
} | |
w.MoveAddChar(yi, xi, '*') | |
w.Refresh() | |
time.Sleep(5 * time.Microsecond) | |
} | |
w.MovePrint(maxY, 0, "Press any key to quit") | |
w.Refresh() | |
w.GetChar() | |
} |
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