Add flipped

lib/chessh/ssh/client/board/board.ex

@@ -11,14 +11,13 @@ defmodule Chessh.SSH.Client.Board do
               client_pid: nil,
               binbo_pid: nil,
               width: 0,
-              height: 0
+              height: 0,
-
+              flipped: false
-    #              flipped: false
   end
 
   use Chessh.SSH.Client.Screen
 
-  def init([%State{game_id: game_id} = state | _]) do
+  def init([%State{client_pid: client_pid, game_id: game_id} = state | _]) do
     :syn.add_node_to_scopes([:games])
     :ok = :syn.join(:games, {:game, game_id}, self())
 
@@ -26,6 +25,8 @@ defmodule Chessh.SSH.Client.Board do
     {:ok, binbo_pid} = :binbo.new_server()
     :binbo.new_game(binbo_pid)
 
+    send(client_pid, {:send_to_ssh, Utils.clear_codes()})
+
     {:ok, %State{state | binbo_pid: binbo_pid}}
   end
 
@@ -49,8 +50,8 @@ defmodule Chessh.SSH.Client.Board do
           move_from: move_from,
           game_id: game_id,
           cursor: %{x: cursor_x, y: cursor_y} = cursor,
-          client_pid: client_pid
+          client_pid: client_pid,
-          #          flipped: flipped
+          flipped: flipped
         } = state
       ) do
     new_cursor =
@@ -76,7 +77,11 @@ defmodule Chessh.SSH.Client.Board do
 
     # TODO: Check move here, then publish new move, subscribers get from DB instead
     if move_from && move_to do
-      attempted_move = "#{Renderer.to_chess_coord(move_from)}#{Renderer.to_chess_coord(move_to)}"
+      attempted_move =
+        if flipped,
+          do:
+            "#{Renderer.to_chess_coord(flip(move_from))}#{Renderer.to_chess_coord(flip(move_to))}",
+          else: "#{Renderer.to_chess_coord(move_from)}#{Renderer.to_chess_coord(move_to)}"
 
       :syn.publish(:games, {:game, game_id}, {:new_move, attempted_move})
     end
@@ -90,8 +95,8 @@ defmodule Chessh.SSH.Client.Board do
           new_move_from => Renderer.from_select_background()
         },
         width: width,
-        height: height
+        height: height,
-        #        flipped: if(action == "f", do: !flipped, else: flipped)
+        flipped: if(action == "f", do: !flipped, else: flipped)
     }
 
     send(client_pid, {:send_to_ssh, render_state(new_state)})
@@ -103,6 +108,9 @@ defmodule Chessh.SSH.Client.Board do
     %State{state | width: width, height: height}
   end
 
+  def flip({y, x}),
+    do: {Renderer.chess_board_height() - 1 - y, Renderer.chess_board_width() - 1 - x}
+
   defp render_state(
          %State{
            binbo_pid: binbo_pid

lib/chessh/ssh/client/board/renderer.ex

@@ -2,6 +2,7 @@ defmodule Chessh.SSH.Client.Board.Renderer do
   alias IO.ANSI
   alias Chessh.Utils
   alias Chessh.SSH.Client.Board
+  require Logger
 
   @chess_board_height 8
   @chess_board_width 8
@@ -27,13 +28,15 @@ defmodule Chessh.SSH.Client.Board.Renderer do
   def render_board_state(fen, %Board.State{
         width: _width,
         height: _height,
-        highlighted: highlighted
+        highlighted: highlighted,
+        flipped: flipped
       }) do
     board =
       draw_board(
         fen,
         {@tile_width, @tile_height},
-        highlighted
+        highlighted,
+        flipped
       )
 
     [ANSI.home()] ++
@@ -109,7 +112,8 @@ defmodule Chessh.SSH.Client.Board.Renderer do
   defp draw_board(
          fen,
          {tile_width, tile_height} = tile_dims,
-         highlights
+         highlights,
+         flipped
        ) do
     coordinate_to_piece = make_coordinate_to_piece_art_map(fen)
     board = make_board(tile_dims)
@@ -123,7 +127,10 @@ defmodule Chessh.SSH.Client.Board.Renderer do
            %{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}"
+
+             key =
+               "#{if !flipped, do: curr_y, else: @chess_board_height - curr_y - 1}, #{if !flipped, do: curr_x, else: @chess_board_width - curr_x - 1}"
+
              relative_to_tile_col = col - curr_x * tile_width
 
              prefix =
@@ -137,13 +144,12 @@ defmodule Chessh.SSH.Client.Board.Renderer do
                  end
                end
 
+             {color, row_chars} =
                case Map.fetch(coordinate_to_piece, key) do
                  {:ok, {shade, type}} ->
                    piece = Utils.ascii_chars()["pieces"][shade][type]
                    piece_line = Enum.at(piece, row - curr_y * tile_height)
-
+                   pad_left_right = div(tile_width - String.length(piece_line), 2)
-                 piece_line_len = String.length(piece_line)
-                 pad_left_right = div(tile_width - piece_line_len, 2)
 
                    if relative_to_tile_col >= pad_left_right &&
                         relative_to_tile_col < tile_width - pad_left_right do
@@ -153,47 +159,39 @@ defmodule Chessh.SSH.Client.Board.Renderer do
                      color =
                        if piece_char == " ",
                          do: ANSI.default_color(),
-                       else: if(shade == "dark", do: @dark_piece_color, else: @light_piece_color)
+                         else:
+                           if(shade == "dark", do: @dark_piece_color, else: @light_piece_color)
 
                      if color != current_color do
-                     %{
+                       {color, row_chars ++ [prefix, color, new_char]}
-                       row_state
-                       | current_color: color,
-                         row_chars: row_chars ++ [prefix, color, new_char]
-                     }
                      else
-                     %{
+                       {current_color, row_chars ++ [prefix, new_char]}
-                       row_state
-                       | current_color: current_color,
-                         row_chars: row_chars ++ [prefix, new_char]
-                     }
                      end
                    else
-                   %{
+                     {ANSI.default_color(), row_chars ++ [prefix, ANSI.default_color(), char]}
-                     row_state
-                     | current_color: ANSI.default_color(),
-                       row_chars: row_chars ++ [prefix, ANSI.default_color(), char]
-                   }
                    end
 
                  _ ->
-                 if ANSI.white() != current_color do
+                   if ANSI.default_color() != current_color do
-                   %{
+                     {ANSI.default_color(), row_chars ++ [prefix, ANSI.default_color(), char]}
-                     row_state
-                     | current_color: ANSI.default_color(),
-                       row_chars: row_chars ++ [prefix, ANSI.default_color(), char]
-                   }
                    else
+                     {current_color, row_chars ++ [prefix, char]}
+                   end
+               end
+
              %{
                row_state
-                     | row_chars: row_chars ++ [prefix, char]
+               | current_color: color,
+                 row_chars: row_chars
              }
            end
-             end
-           end
          )
 
-       curr_num = Utils.ascii_chars()["numbers"][Integer.to_string(curr_y)]
+       curr_num =
+         Utils.ascii_chars()["numbers"][
+           Integer.to_string(if flipped, do: curr_y + 1, else: @chess_board_height - curr_y)
+         ]
+
        curr_num_line_no = rem(row, @tile_height)
 
        Enum.join(
@@ -208,10 +206,16 @@ defmodule Chessh.SSH.Client.Board.Renderer do
          ] ++ row_chars,
          ""
        )
-     end) ++
+     end) ++ column_coords(flipped))
+    |> Enum.map(fn row_line -> "#{ANSI.default_background()}#{row_line}" end)
+  end
+
+  defp column_coords(flipped) do
     Enum.map(0..(@tile_height - 1), fn row ->
       String.duplicate(" ", @tile_width) <>
-           (Enum.map(0..(@chess_board_width - 1), fn col ->
+        (Enum.map(
+           if(!flipped, do: 0..(@chess_board_width - 1), else: (@chess_board_width - 1)..0),
+           fn col ->
              curr_letter = Utils.ascii_chars()["letters"][List.to_string([?a + col])]
              curr_letter_line_no = rem(row, @tile_height)
 
@@ -227,10 +231,18 @@ defmodule Chessh.SSH.Client.Board.Renderer do
                String.duplicate(" ", center_prefix_len) <> curr_line,
                @tile_width
              )
-            end)
+           end
+         )
          |> Enum.join(""))
-       end))
+    end)
-    |> Enum.map(fn row_line -> "#{ANSI.default_background()}#{row_line}" end)
+  end
+
+  defp render_flipped(rows, flipped) do
+    if !flipped do
+      rows
+    else
+      rows
+    end
   end
 
   defp make_board({tile_width, tile_height}) do