Commit d1472d31 authored by santiaago's avatar santiaago
Browse files

add randomIndexFromArray

parent d82cdf8f

draw/tools.go

+6 −0
Original line number Diff line number Diff line
@@ -16,6 +16,12 @@ func RandomColorFromArray(colors []color.RGBA) color.RGBA { 
	return colors[r]

}



// RandomIndexFromArray returns an index from the given array.

func RandomIndexFromArray(colors []color.RGBA) int {

	r := rand.Intn(len(colors))

	return r

}



// ColorByPercentage returns a color based on the given percentage and the

// number of colors present in the 'colors' array in a gradient way.

func ColorByPercentage(colors []color.RGBA, percentage int) color.RGBA {