.gitignore

 .vs
 obj
+bin

Buhnenrennen/Dog.cs

         public static readonly Dog MINNIE = new Dog( 'M', new char[] { 'm', 'x', 'M' }, 20 );
         public static readonly Dog MAX = new Dog( 'X', new char[] { 'x', 'X' }, 30 );
 
-        private char[] fitsThrough;
-        public char[] FitsThrough => this.fitsThrough;
-        private double meterPerSecond;
-        public double MeterPerSecond => this.meterPerSecond;
-        private char start;
-        public char Start => this.start;
+        public char[] FitsThrough { get; private set; }
+        public double MeterPerSecond { get; private set; }
+        public char Start { get; private set; }
 
         private Dog( char start, char[] fitsThrough, double kmh )
         {
-            this.start = start;
-            this.fitsThrough = fitsThrough;
+            Start = start;
+            FitsThrough = fitsThrough;
             // km/h : 3,6 = m/s ( Formula found through google )
-            this.meterPerSecond = kmh / 3.6;
+            MeterPerSecond = kmh / 3.6;
         }
     }
 }

Buhnenrennen/Field.cs

 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Text;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 
 namespace Buhnenrennen
 {
     class Field
     {
-        private Dictionary<double, List<Groyne>> groynes;
-        public Dictionary<double, List<Groyne>> Groynes => this.groynes;
+        public Dictionary<double, List<Groyne>> Groynes { get; private set; }
+        Regex groynSchema = new Regex( "(?<type>[A-Z]) (?<level>[0-9]+) (?<yCoord>[0-9\\.]+)", RegexOptions.IgnoreCase );
 
-        // if there is a number of Groynes which is not "4", the program should also be able to work
-        // maybe we edit this as dynamic and add a new level like "groynes.Add(x+70, levelY.ToList())" till x = highestNumberOfTestData
-        public Field( Groyne[] level0, Groyne[] level1, Groyne[] level2, Groyne[] level3 )
+        private Field( IEnumerable<string> groynes )
         {
-            groynes = new Dictionary<double, List<Groyne>>();
-            groynes.Add( 0, level0.ToList() );
-            groynes.Add( 70, level1.ToList() );
-            groynes.Add( 140, level2.ToList() );
-            groynes.Add( 210, level3.ToList() );
-            
-        }
-
-        public Groyne[] findShortestPath( Dog dog )
-        {
-            List<Groyne> poles = new List<Groyne>();
-            Groyne start = groynes[ 0 ].Find( groyne => groyne.Type == dog.Start );
-            if ( start == null ) throw new Exception( "No start position found" );
-            poles.Add( start );
-
-            Groyne previous = start;
-            for( int level = 70; level <= groynes.Keys.Max(); level += 70 )
+            Groynes = new Dictionary<double, List<Groyne>>();
+            Match m;
+            foreach( string groyn in groynes )
             {
-                List<Groyne> candidates = groynes[ level ].Where( groyne => groyne.canPass( dog ) ).ToList();
-                var distances = candidates.Select( groyne => groyne.distanceTo( previous ) ).ToList();
-                var minDistance = distances.Min();
-                previous = candidates[ distances.IndexOf( minDistance ) ];
-                poles.Add( previous );
+                if ( ( m = groynSchema.Match( groyn ) ).Success )
+                {
+                    char type = m.Groups[ "type" ].Value.FirstOrDefault();
+                    // Forcing a multiple of 70 by using '/ 70 * 70'
+                    int level = int.Parse( m.Groups[ "level" ].Value ) / 70 * 70;
+                    double yCoord = double.Parse( m.Groups[ "yCoord" ].Value );
+                    if ( !this.Groynes.ContainsKey( level ) ) this.Groynes.Add( level, new List<Groyne>() );
+                    this.Groynes[ level ].Add( new Groyne( yCoord, type ) );
+                } 
             }
-
-            return poles.ToArray();
         }
 
-        public TimedGroyne findFastestPath( Dog dog )
+        /**
+         * <summary>returns a field object loaded from entries out of File at {filename}</summary>
+         * <param name="filename">Location of the file to read</param>
+         */
+        public static Field fromFile( string filename )
         {
-            Groyne start = groynes[ 0 ].Find( groyne => groyne.Type == dog.Start );
-            if ( start == null ) throw new Exception( "No start position found" );
-
-            Groyne lastLevel = start;
-            Dictionary<int, List<TimedGroyne>> times = new Dictionary<int, List<TimedGroyne>>();
-            times.Add( 0, new TimedGroyne[] { new TimedGroyne( null, start, 0 ) }.ToList() );
-            for ( int level = 70; level <= groynes.Keys.Max(); level += 70 )
-            {
-                List<TimedGroyne> subTimes = new List<TimedGroyne>();
-                List<TimedGroyne> passables = times[ level - 70 ].Where( time => time.Groyne.canPass( dog ) ).ToList();
-                foreach ( Groyne groyne in groynes[ level ] )
-                {
-                    List<TimedGroyne> possibleTimes = passables.Select( passable => new TimedGroyne( passable, groyne, passable.TotalTime + groyne.requiredTimeTo( passable.Groyne, dog ) ) ).ToList();
-                    subTimes.Add( possibleTimes.OrderBy( time => time.TotalTime ).First() );
-                }
-                times.Add( level, subTimes );
-            }
-            return times[ 3 ].OrderBy( time => time.TotalTime ).First();
+            return new Field( File.ReadAllLines( filename ) );
         }
 
+        /**
+         * <summary>returns a dictionary with groynes and the fastest times the give dog is able to reach them</summary>
+         * <param name="dog">dog that is running to the groynes</param>
+         */
+
         public Dictionary<double, List<TimedGroyne>> listFastestTimes( Dog dog )
         {
-            Groyne start = groynes[ 0 ].Find( groyne => groyne.Type == dog.Start );
+            Groyne start = Groynes[ 0 ].Find( groyne => groyne.Type == dog.Start );
             if ( start == null ) throw new Exception( "No start position found" );
 
             Groyne lastLevel = start;
             Dictionary<double, List<TimedGroyne>> times = new Dictionary<double, List<TimedGroyne>>();
             times.Add( 0, new TimedGroyne[] { new TimedGroyne( null, start, 0 ) }.ToList() );
-            for ( int level = 70; level <= groynes.Keys.Max(); level += 70 )
+            for ( int level = 70; level <= Groynes.Keys.Max(); level += 70 )
             {
                 List<TimedGroyne> subTimes = new List<TimedGroyne>();
-                List<TimedGroyne> passables = times[ level - 70 ].Where( time => time.Groyne.canPass( dog ) ).ToList();
-                foreach ( Groyne groyne in groynes[ level ] )
+                List<TimedGroyne> passables = times[ level - 70 ].Where( time => time.Groyne.CanPass( dog ) ).ToList();
+                foreach ( Groyne groyne in Groynes[ level ] )
                 {
-                    List<TimedGroyne> possibleTimes = passables.Select( passable => new TimedGroyne( passable, groyne, passable.TotalTime + groyne.requiredTimeTo( passable.Groyne, dog ) ) ).ToList();
+                    List<TimedGroyne> possibleTimes = passables.Select( passable => new TimedGroyne( passable, groyne, passable.TotalTime + groyne.RequiredTimeTo( passable.Groyne, dog ) ) ).ToList();
                     subTimes.Add( possibleTimes.OrderBy( time => time.TotalTime ).FirstOrDefault() );
                 }
                 times.Add( level, subTimes );
             return times;
         }
 
+        /**
+         * <summary>returns the fastest route for {hunted} where {hunted} will always be faster than {hunter}</summary>
+         * <param name="hunted">The dog, which will be hunted and is not to be catched ( Minnie )</param>
+         * <param name="hunter">The dog, with the desire to hunt the {hunted} dog ( Max )</param>
+         */
         public TimedGroyne getFastestSafeRoute( Dog hunter, Dog hunted )
         {
             var hunterMap = listFastestTimes( hunter );
             var huntedMap = listFastestTimes( hunted );
 
             List<Groyne> safeGroynes = new List<Groyne>();
-            safeGroynes.Add( groynes[ 0 ].Find( groyne => groyne.Type == hunted.Start ) );
+            safeGroynes.Add( Groynes[ 0 ].Find( groyne => groyne.Type == hunted.Start ) );
 
-            for ( int level = 70; level <= groynes.Keys.Max(); level += 70 )
+            for ( int level = 70; level <= Groynes.Keys.Max(); level += 70 )
             {
                 var huntedTimes = huntedMap[ level ];
                 var hunterTimes = hunterMap[ level ];
                 }
             }
 
-            return huntedMap[ groynes.Keys.Max() ].Where( huntedRoute => safeGroynes.Contains( huntedRoute.Groyne ) ).OrderBy( huntedRoute => huntedRoute.TotalTime ).FirstOrDefault();
+            return huntedMap[ Groynes.Keys.Max() ].Where( huntedRoute => safeGroynes.Contains( huntedRoute.Groyne ) ).OrderBy( huntedRoute => huntedRoute.TotalTime ).FirstOrDefault();
         }
     }
 }

Buhnenrennen/Groyne.cs

 {
     class Groyne
     {
-        private double yCoord;
-        public double YCoord => this.yCoord;
-        private char type;
-        public char Type => this.type;
+        public double YCoord { get; private set; }
+        public char Type { get; private set; }
 
         public Groyne( double yCoord, char type )
         {
-            this.yCoord = yCoord;
-            this.type = type;
+            this.YCoord = yCoord;
+            this.Type = type;
         }
 
-        public bool canPass( Dog dog ) => dog.FitsThrough.Contains( Type );
+        /// <summary>
+        /// returns if given dog fits through the groyne
+        /// </summary>
+        /// <param name="dog">the dog, that wants to fit through</param>
+        public bool CanPass( Dog dog ) => dog.FitsThrough.Contains( Type );
 
-        public double distanceTo( Groyne groyne ) =>
+        /// <summary>
+        /// returns the distance between called and given groyne
+        /// </summary>
+        /// <param name="groyne">groyne to calculate the distance to</param>
+        public double DistanceTo( Groyne groyne ) =>
             // distance: distance² = A² + B²
             // A: 70
             // B: difference of Y-Coordinates
             Math.Sqrt( Math.Pow( 70, 2 ) + Math.Pow( YCoord - groyne.YCoord, 2 ) );
 
-        public double requiredTimeTo( Groyne groyne, Dog dog ) => distanceTo( groyne ) / dog.MeterPerSecond;
+        /// <summary>
+        /// returns the time the given {dog} needs to get to given {groyne} starting at current groyne
+        /// </summary>
+        /// <param name="groyne">groyne the dog is running to</param>
+        /// <param name="dog">the dog, thats running to the groyne</param>
+        public double RequiredTimeTo( Groyne groyne, Dog dog ) => DistanceTo( groyne ) / dog.MeterPerSecond;
 
         public override string ToString() => Type + "( " + YCoord + " )";
     }

Buhnenrennen/GroyneRun.cs

 using System;
 using System.Collections.Generic;
+using System.IO;
 using System.Linq;
 using System.Text;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 
 namespace Buhnenrennen
 {
     class GroyneRun
     {
-        public void Start()
+        Regex setupFileRegex = new Regex( "^buhnenrennen(?<number>[0-9]+).txt$", RegexOptions.IgnoreCase );
+        Regex intFormatRegex = new Regex( "^[0-9]+$", RegexOptions.IgnoreCase );
+
+        /// <summary>
+        /// asks the user to enter the number of a setup file and loads the given file
+        /// </summary>
+        private Field selectField()
         {
-            Field field = new Field(
-                new Groyne[] {
-                    new Groyne( 42.95, 'M' ),
-                    new Groyne( 168.6, 'X' )
-                },
-                new Groyne[] {
-                    new Groyne( 76.4, 'm' ),
-                    new Groyne( 45.9, 'x' ),
-                    new Groyne( 117.4, 'm' )
-                },
-                new Groyne[] {
-                    new Groyne( 42.2, 'm' ),
-                    new Groyne( 109.35, 'm' ),
-                    new Groyne( 158.7, 'x' )
-                },
-                new Groyne[] {
-                    new Groyne( 49.4, 'm' ),
-                    new Groyne( 83.1, 'm' ),
-                    new Groyne( 148.7, 'x' ),
-                    new Groyne( 103.5 , 'x' )
+            var filenumbers_int = Directory.GetFiles( "setups", "buhnenrennen*.txt" )
+                .Select( Path.GetFileName )
+                .Where( file => setupFileRegex.IsMatch( file ) )
+                .Select( file => int.Parse( setupFileRegex.Match( file ).Groups[ "number" ].Value ) ).ToList();
+            filenumbers_int.Sort();
+            List<string> filenumbers = filenumbers_int.Select( filenumber => filenumber.ToString() ).ToList();
+
+            if ( filenumbers.Count <= 0 ) return null;
+
+            Console.WriteLine( "Es wurden Setup-Dateien mit den folgenden Nummern gefunden:" );
+            Console.WriteLine( "\t" + string.Join( ", ", filenumbers ) );
+            Console.Write( "Bitte geben sie die Nummer des gewünschten Setups an ( " + filenumbers.FirstOrDefault() + " ): " );
+            string number = null;
+            do
+            {
+                if ( number != null ) Console.Write( "Der angegebene Wert ist keine Zahl, bitte versuche es erneut ( " + filenumbers.FirstOrDefault() + " ): " );                     
+                number = Console.ReadLine();
+                if ( string.IsNullOrWhiteSpace( number ) )
+                {
+                    number = filenumbers.FirstOrDefault();
                 }
-            );
+            } while ( !intFormatRegex.IsMatch( number ) );
+
+
+            return Field.fromFile( "setups/buhnenrennen" + number + ".txt" );
+        }
+
+        /// <summary>
+        /// loads the field and fastest route to display them in the console
+        /// </summary>
+        public void Start()
+        {
+            Field field = selectField();
+            if ( field == null )
+            {
+                Console.WriteLine( "Es ist leider keine Setupdatei vorhanden. Bitte leg welche an und versuche es erneut." );
+                Console.ReadKey();
+                return;
+            }
 
             TimedGroyne safePath = field.getFastestSafeRoute( Dog.MAX, Dog.MINNIE );
 

Buhnenrennen/bin/Debug/Buhnenrennen.exe.config

-<?xml version="1.0" encoding="utf-8" ?>
-<configuration>
-    <startup> 
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2" />
-    </startup>
-</configuration>