add new pixel pieces by therealqtpi

COPYING.md

@@ -52,6 +52,7 @@ public/piece/letter | [usolando](https://lichess.org/@/usolando) | AGPLv3+
 public/piece/pirouetti | [pirouetti](https://lichess.org/@/pirouetti) | AGPLv3+
 public/piece/merida | Armando Hernandez Marroquin | [GPLv2+](https://www.gnu.org/licenses/gpl-2.0.txt)
 public/piece/shapes | [flugsio](https://github.com/flugsio/chess_shapes) | [CC BY-SA 4.0](https://creativecommons.org/licenses/by-sa/4.0/)
+public/piece/pixel | therealqtpi | AGPLv3+
 public/sounds/futuristic | [Enigmahack](https://github.com/Enigmahack) | AGPLv3+
 public/sounds/nes | [Enigmahack](https://github.com/Enigmahack) | AGPLv3+
 public/sounds/piano | [Enigmahack](https://github.com/Enigmahack) | AGPLv3+

bin/gen/piece-sprite

@@ -23,7 +23,8 @@ themes = [
   ['letter', 'svg'],
   ['riohacha', 'svg'],
   ['leipzig', 'svg'],
-  ['kosal', 'svg']
+  ['kosal', 'svg'],
+  ['pixel', 'svg']
 ]
 types = {
   'svg' => 'svg+xml;base64,',

modules/pref/src/main/PieceSet.scala

@@ -28,7 +28,7 @@ object PieceSet extends PieceSetObject {
     default.name, "merida", "alpha", "pirouetti",
     "chessnut", "chess7", "reillycraig", "companion",
     "riohacha", "kosal", "leipzig", "fantasy", "spatial",
-    "shapes", "letter"
+    "pixel", "shapes", "letter"
   ) map { name => new PieceSet(name) }
 }
 

public/piece-css/pixel.external.css

@@ -0,0 +1,12 @@
+.is2d .pawn.white {background-image:url('/assets/piece/pixel/wP.svg')}
+.is2d .knight.white {background-image:url('/assets/piece/pixel/wN.svg')}
+.is2d .bishop.white {background-image:url('/assets/piece/pixel/wB.svg')}
+.is2d .rook.white {background-image:url('/assets/piece/pixel/wR.svg')}
+.is2d .queen.white {background-image:url('/assets/piece/pixel/wQ.svg')}
+.is2d .king.white {background-image:url('/assets/piece/pixel/wK.svg')}
+.is2d .pawn.black {background-image:url('/assets/piece/pixel/bP.svg')}
+.is2d .knight.black {background-image:url('/assets/piece/pixel/bN.svg')}
+.is2d .bishop.black {background-image:url('/assets/piece/pixel/bB.svg')}
+.is2d .rook.black {background-image:url('/assets/piece/pixel/bR.svg')}
+.is2d .queen.black {background-image:url('/assets/piece/pixel/bQ.svg')}
+.is2d .king.black {background-image:url('/assets/piece/pixel/bK.svg')}