Checkpoint - board is drawn!

lib/chessh/ssh/client.ex

@@ -12,7 +12,7 @@ defmodule Chessh.SSH.Client do
   ]
 
   @min_terminal_width 64
-  @min_terminal_height 31
+  @min_terminal_height 32
   @max_terminal_width 255
   @max_terminal_height 127
 

lib/chessh/ssh/screens/board.ex

@@ -14,6 +14,9 @@ defmodule Chessh.SSH.Client.Board do
   @chess_board_height 8
   @chess_board_width 8
 
+  @dark_piece_color ANSI.magenta()
+  @light_piece_color ANSI.red()
+
   def tileIsLight(row, col) do
     rem(row, 2) == rem(col, 2)
   end
@@ -42,20 +45,7 @@ defmodule Chessh.SSH.Client.Board do
     Enum.flat_map(rows, fn row -> Enum.map(1..tile_height, fn _ -> row end) end)
   end
 
-  def make_board(fen, {tile_width, tile_height} = tile_dims) do
+  defp skip_cols_or_place_piece_reduce(char, {curr_column, data}, rowI) do
-    rows =
-      String.split(fen, " ")
-      |> List.first()
-      |> String.split("/")
-
-    coordinate_to_piece =
-      Enum.zip(rows, 0..(length(rows) - 1))
-      |> Enum.map(fn {row, rowI} ->
-        {@chess_board_height, pieces_per_row} =
-          Enum.reduce(
-            String.split(row, ""),
-            {0, %{}},
-            fn char, {curr_column, data} ->
     case Integer.parse(char) do
       {skip, ""} ->
         {curr_column + skip, data}
@@ -66,17 +56,31 @@ defmodule Chessh.SSH.Client.Board do
             {curr_column, data}
 
           type ->
+            shade = if(char != String.capitalize(char), do: "dark", else: "light")
+
             {curr_column + 1,
              Map.put(
                data,
                "#{rowI}, #{curr_column}",
-                         @ascii_chars["pieces"][
+               {shade, type}
-                           if(char != String.capitalize(char), do: "dark", else: "light")
-                         ][type]
              )}
         end
     end
   end
+
+  defp make_coordinate_to_piece_art_map(fen) do
+    rows =
+      String.split(fen, " ")
+      |> List.first()
+      |> String.split("/")
+
+    Enum.zip(rows, 0..(length(rows) - 1))
+    |> Enum.map(fn {row, rowI} ->
+      {@chess_board_height, pieces_per_row} =
+        Enum.reduce(
+          String.split(row, ""),
+          {0, %{}},
+          &skip_cols_or_place_piece_reduce(&1, &2, rowI)
         )
 
       pieces_per_row
@@ -84,39 +88,81 @@ defmodule Chessh.SSH.Client.Board do
     |> Enum.reduce(%{}, fn pieces_map_for_this_row, acc ->
       Map.merge(acc, pieces_map_for_this_row)
     end)
+  end
 
+  def make_board(fen, {tile_width, tile_height} = tile_dims) do
+    coordinate_to_piece = make_coordinate_to_piece_art_map(fen)
     board = make_board(tile_dims)
 
     Enum.zip_with([board, 0..(length(board) - 1)], fn [rowStr, row] ->
       curr_y = div(row, tile_height)
 
-      Enum.zip_with([String.graphemes(rowStr), 0..(String.length(rowStr) - 1)], fn [char, col] ->
+      %{row_chars: row_chars} =
+        Enum.reduce(
+          Enum.zip(String.graphemes(rowStr), 0..(String.length(rowStr) - 1)),
+          %{current_color: ANSI.black(), row_chars: []},
+          fn {char, col}, %{current_color: current_color, row_chars: row_chars} = row_state ->
             curr_x = div(col, tile_width)
             key = "#{curr_y}, #{curr_x}"
 
-        if Map.has_key?(coordinate_to_piece, key) do
+            case Map.fetch(coordinate_to_piece, key) do
-          piece_row =
+              {:ok, {shade, type}} ->
-            Map.fetch!(coordinate_to_piece, key)
+                piece = @ascii_chars["pieces"][shade][type]
-            |> Enum.at(row - curr_y * tile_height)
+                piece_line = Enum.at(piece, row - curr_y * tile_height)
 
-          piece_row_len = String.length(piece_row)
+                piece_line_len = String.length(piece_line)
-          centered_col = div(tile_width - piece_row_len, 2)
+                pad_left_right = div(tile_width - piece_line_len, 2)
                 relative_to_tile_col = col - curr_x * tile_width
-          Logger.debug("#{piece_row_len}, #{centered_col}, #{relative_to_tile_col}")
 
-          piece_char =
+                if relative_to_tile_col >= pad_left_right &&
-            if relative_to_tile_col >= centered_col &&
+                     relative_to_tile_col < tile_width - pad_left_right do
-                 relative_to_tile_col <= tile_width - centered_col - 1,
+                  piece_char = String.at(piece_line, relative_to_tile_col - pad_left_right)
-               do: String.at(piece_row, relative_to_tile_col - centered_col),
+                  new_char = if piece_char == " ", do: char, else: piece_char
-               else: " "
 
+                  color =
                     if piece_char == " ",
-            do: char,
+                      do: ANSI.default_color(),
-            else: piece_char
+                      else: if(shade == "dark", do: @dark_piece_color, else: @light_piece_color)
+
+                  if color != current_color do
+                    %{
+                      row_state
+                      | current_color: color,
+                        row_chars: row_chars ++ [color, new_char]
+                    }
                   else
-          char
+                    %{
+                      row_state
+                      | current_color: current_color,
+                        row_chars: row_chars ++ [new_char]
+                    }
                   end
-      end)
+                else
+                  %{
+                    row_state
+                    | current_color: ANSI.default_color(),
+                      row_chars: row_chars ++ [ANSI.default_color(), char]
+                  }
+                end
+
+              _ ->
+                if ANSI.white() != current_color do
+                  %{
+                    row_state
+                    | current_color: ANSI.default_color(),
+                      row_chars: row_chars ++ [ANSI.default_color(), char]
+                  }
+                else
+                  %{
+                    row_state
+                    | row_chars: row_chars ++ [char]
+                  }
+                end
+            end
+          end
+        )
+
+      row_chars
       |> Enum.join("")
     end)
   end

lib/chessh/ssh/tui.ex

@@ -76,7 +76,6 @@ defmodule Chessh.SSH.Tui do
         {:send_data, data},
         %{connection_ref: connection_ref, channel_id: channel_id} = state
       ) do
-    Logger.debug("Data was sent to TUI process #{inspect(data)}")
     :ssh_connection.send(connection_ref, channel_id, data)
     {:ok, state}
   end
@@ -97,7 +96,6 @@ defmodule Chessh.SSH.Tui do
         {:ssh_cm, _connection_handler, {:data, _channel_id, _type, data}},
         state
       ) do
-    Logger.debug("DATA #{inspect(data)}")
     send(state.client_pid, {:data, data})
     {:ok, state}
   end
@@ -132,7 +130,6 @@ defmodule Chessh.SSH.Tui do
          {:window_change, _channel_id, width, height, _pixwidth, _pixheight}},
         %{client_pid: client_pid} = state
       ) do
-    Logger.debug("WINDOW CHANGE")
     send(client_pid, {:resize, {width, height}})
 
     {:ok,

priv/ascii_chars.json

@@ -28,14 +28,14 @@
       "knight": ["   ", "/`)", " U ", "[.]"],
       "bishop": [" . ", "(\\)", " U ", "[.]"],
       "queen": [" . ", ").(", ").(", "[.]"],
-      "king": [" + ", ").(", ").(", "[.]"],
+      "king": [" + ", ").(", "|.|", "[.]"],
       "pawn": ["   ", " o ", " U ", "[.]"]
     },
     "dark": {
       "rook": ["   ", "L-|", " U ", "[#]"],
       "knight": ["   ", "/`)", " U ", "[#]"],
       "bishop": [" . ", "(\\)", " U ", "[#]"],
-      "king": [" + ", ")#(", ")#(", "[#]"],
+      "king": [" + ", ")#(", "|#|", "[#]"],
       "queen": [" . ", ")#(", ")#(", "[#]"],
       "pawn": ["   ", " o ", " U ", "[#]"]
     }