Path Following Algorithm

Windows Forms application for path following algorithm for ASCII maps

Requirements

.Net Framework 4.5.2
Visual Studio
Windows OS

Application set up

Open solution in Visual studio
Build solution
Run application

Application use

Click button "Add ASCII map"
Select ASCII map (.txt) file from your drive
Click button "Process map"
Result is shown in "Path" and "Letters" textboxes

Basic application (algorithm) functionality

Application input is ASCII map in format like this or similar:

  @---+
      B
K-----|--A
|     |  |
|  +--E  |
|  |     |
+--E--Ex C
   |     |
   +--F--+

Symbol "@" represents starting point of the path, symbol "x" represents end of the path. Idea is to follow path from start to end and during that save chars which are on the path and also save chars which are uppercase letters (letters are only saved at first run, if letter is crossed second time it shouldn't be saved). Symbol "+" represents change of direction, but uppercase letter can also change direction of the path.

For the given input, expected result should be:
Path: @---+B||E--+|E|+--F--+|C|||A--|-----K|||+--E--Ex
Letters: BEEFCAKE

Unit tests