Murmelmaschine

main.tex

\documentclass{scrartcl}
\KOMAoptions{
  parskip=half,
  fontsize=12pt,
  DIV=calc
}
%	Seitengränder
\usepackage{geometry}
\geometry{
    bottom=1cm,
    top=1.5cm,
    right=2cm,
    left=2cm,
    includeheadfoot
}

\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage[ngerman]{babel}
%	schoenere Schrift
\usepackage[scaled=0.95]{helvet}
\renewcommand*{\familydefault}{\sfdefault}

%	Bilder & Farben
\usepackage{graphicx, color, xcolor}
%	Mathe
\usepackage{amssymb, amsmath, amsthm}

%
%	TikZ
%
\usepackage{tikz}
    \usetikzlibrary{positioning,%
      fit,%
      arrows,%
      automata,%
      trees,%
      intersections,%
      mindmap,%
      shapes.geometric,%
      shapes.arrows,%
      decorations,%
      decorations.pathmorphing,%
      decorations.pathreplacing,%
      matrix,%
      chains,%
      scopes,%
      circuits,%
      circuits.ee.IEC,%
      calc,%
      fadings,%
      lindenmayersystems,%
      decorations.markings%
    }
    
\begin{document}
	 \begin{tikzpicture}[thick]
           \draw
	           (2,0) -- (2,0.75) -- (0,3) -- (2,5.25) -- (2,6);
	        \draw
	           (7,0) -- (7,0.75) -- (9,3) -- (7,5.25) -- (7,6);
	        \draw
		        (3,0) -- (3,0.75) -- (4.5,2.25) -- (6,0.75) -- (6,0);
		     \draw
		        (3,6) -- (3,5.25) -- (4.5,3.75) -- (6,5.25) -- (6,6);
		        
		     \draw
			     (2.5,1.4) -- (1,3) -- (2.5,4.6) -- (4,3) -- (2.5,1.4);
			  \draw
			     (6.5,1.4) -- (5,3) -- (6.5,4.6) -- (8,3) -- (6.5,1.4);
			     
			  \draw[ultra thick, ->]
				  (2.5,6.25) -- node [above=5pt] {A} (2.5,5.75);
			  \draw[ultra thick, ->]
				  (6.5,6.25) -- node [above=5pt] {B} (6.5,5.75);
				  
			  \draw[ultra thick, ->]
				  (2.5,0.25) -- node [below=5pt] {C} (2.5,-0.25);
			  \draw[ultra thick, ->]
				  (6.5,0.25) -- node [below=5pt] {D} (6.5,-0.25);
			 
			  \draw
				  (2.25,5) -- node {$\bullet$} node[below right] {$x_1$} (2.75,5.5);
			  \draw
				  (6.25,5) -- node {$\bullet$} node[below right] {$x_2$} (6.75,5.5);
			   \draw
				  (4.25,2.75) -- node {$\bullet$} node[below right] {$x_3$} (4.75,3.25);
     \end{tikzpicture}
\end{document}

TikZ Drawing