Document iteration grids

2 files changed, 62 insertions, 8 deletions

diff --git a/README b/README
index cc0c2e0..b527d21 100644
--- a/README
+++ b/README
@@ -10,8 +10,10 @@
 Table of Contents
 ─────────────────
 
-1. Fornax Format
-2. Project Structure
+1. Documentation
+2. Fornax Format
+.. 1. Grids
+3. Project Structure
 
 
 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
@@ -27,7 +29,14 @@ This collection includes:
   languages.
 
 
-1 Fornax Format
+1 Documentation
+═══════════════
+
+  Fornax parses /Fornax format/, generates a `PNG' for each iteration
+  which is later converted to a slideshow with `ffmpeg'.
+
+
+2 Fornax Format
 ═══════════════
 
   Fornax format is an intermediate output file generated after solving
@@ -45,11 +54,33 @@ This collection includes:
   single line.
 
   • Every iteration should be separated by a newline.
-  • If the iteration cells is not equal to `rows * columns' then it may
-    be ignored by the program that parses the file.
+
+  • If the iteration cells is not equal to `rows * columns' or `(rows *
+      columns) + 1' then it may be ignored by the program that parses
+      the file.
+
+  • Solved iteration must be preceded by `|' character. The program may
+    or may not use it while rendering the video.
+
+
+2.1 Grids
+─────────
+
+  A grid is printed for every iteration. Grids are composed of cells.
+
+  ━━━━━━━━━━━━━━━━━━━━━━━━━━
+   Cell              Symbol
+  ──────────────────────────
+   Path              `.'
+   Blocked           `#'
+  ──────────────────────────
+   Visited           `-'
+   Current Position  `@'
+   Destination       `$'
+  ━━━━━━━━━━━━━━━━━━━━━━━━━━
 
 
-2 Project Structure
+3 Project Structure
 ═══════════════════
 
   • Algorithms are located in `algorithms/' directory, sub-directory
diff --git a/README.org b/README.org
index b2b6778..abd8028 100644
--- a/README.org
+++ b/README.org
@@ -12,6 +12,11 @@ This collection includes:
 - Algorithms: Various algorithms solved in several programming
   languages.
 
+* Documentation
+
+Fornax parses /Fornax format/, generates a ~PNG~ for each iteration which is
+later converted to a slideshow with ~ffmpeg~.
+
 * Fornax Format
 
 Fornax format is an intermediate output file generated after solving the
@@ -28,8 +33,26 @@ that is to be included in the final video. Since the number of rows and
 columns is known, the whole grid should be printed in a single line.
 
 - Every iteration should be separated by a newline.
-- If the iteration cells is not equal to ~rows * columns~ then it may be
-  ignored by the program that parses the file.
+
+- If the iteration cells is not equal to ~rows * columns~ or ~(rows *
+  columns) + 1~ then it may be ignored by the program that parses the
+  file.
+
+- Solved iteration must be preceded by ~|~ character. The program may or
+  may not use it while rendering the video.
+
+** Grids
+
+A grid is printed for every iteration. Grids are composed of cells.
+
+| Cell             | Symbol |
+|------------------+--------|
+| Path             | ~.~      |
+| Blocked          | ~#~      |
+|------------------+--------|
+| Visited          | ~-~      |
+| Current Position | ~@~      |
+| Destination      | ~$~      |
 
 * Project Structure