First hack at manim

cli_prompt_example.py

from manimlib.imports import *

class makeText(Scene):

    def createArrowAndDesc(self, mobj_next_to, desc, dir=UP):
        arrow = Vector(direction=dir)
        arrow.next_to(mobj_next_to, dir*-1)
        desc = TextMobject(desc)
        desc.next_to(arrow, dir*-1)
        group = VGroup(arrow, desc)
        return arrow, desc, group

    def showAndWriteGroup(self, group):
        arrow = group.submobjects[0] 
        text = group.submobjects[1]
        self.play(GrowArrow(arrow))
        self.wait(1)
        self.play(Write(text))
        self.wait(1)

    def construct(self):
        user = TextMobject("\\texttt{runner}", color=BLUE)
        at = TextMobject("\\texttt{@}")
        host = TextMobject("\\texttt{e0bb35481dc9}", color=RED)
        colon = TextMobject(":")
        cwd = TextMobject("\\textapprox\\texttt{/LinuxTut-env-1}", color=GREEN)
        dollar = TextMobject("\\texttt{\$}")
        prompt = VGroup(user, at, host, colon, cwd, dollar)
        prompt.arrange()
        
        user_arrow, user_desc, user_group = self.createArrowAndDesc(user, "user")
        host_arrow, host_desc, host_group = self.createArrowAndDesc(host, "host")
        cwd_arrow, cwd_desc, cwd_group = self.createArrowAndDesc(cwd, "current directory")
        dollar_arrow, dollar_desc, dollar_group = self.createArrowAndDesc(dollar, "user type")

        self.wait(1)
        self.play(Write(prompt))
        self.wait(1)
        self.play(FadeOut(at), FadeOut(host), FadeOut(colon), FadeOut(cwd), FadeOut(dollar))
        self.showAndWriteGroup(user_group)
        self.play(FadeIn(at), FadeIn(host), FadeOut(user_desc), FadeOut(user_arrow))
        self.showAndWriteGroup(host_group)
        self.play(FadeIn(colon), FadeIn(cwd), FadeOut(host_desc), FadeOut(host_arrow))
        self.showAndWriteGroup(cwd_group)
        self.play(FadeIn(dollar), FadeOut(cwd_desc), FadeOut(cwd_arrow))
        self.showAndWriteGroup(dollar_group)

        # debug_group = VGroup(user_arrow, user_desc, host_arrow, host_desc, cwd_arrow, cwd_desc, dollar_arrow, dollar_desc)
        # attrs = vars(debug_group.submobjects[1])
        # print(', '.join("%s: %s" % item for item in attrs.items()))
        #self.play(Write(debug_group))