Upgrade to Sunsetter8 (fixes #2199)

.gitmodules

@@ -31,9 +31,6 @@
 [submodule "public/vendor/stockfish.js"]
  path = public/vendor/stockfish.js
  url = https://github.com/niklasf/stockfish.js
-[submodule "public/vendor/Sunsetter"]
- path = public/vendor/Sunsetter
- url = https://github.com/niklasf/Sunsetter.git
 [submodule "public/vendor/flatpickr"]
  path = public/vendor/flatpickr
  url = https://github.com/chmln/flatpickr
@@ -43,3 +40,7 @@
 [submodule "public/visualizer"]
  path = public/visualizer
  url = https://github.com/ornicar/chess_game_visualizer
+[submodule "public/vendor/Sunsetter8"]
+ path = public/vendor/Sunsetter8
+ url = https://github.com/niklasf/Sunsetter8
+ branch = js

ui/analyse/src/ceval/sunsetterWorker.js

@@ -61,20 +61,14 @@ module.exports = function(opts, name) {
 
  // transform mate scores
  if (Math.abs(cp) > 20000) {
- mate = Math.floor((30000 - Math.abs(cp)) / 10);
+ mate = Math.floor((30000 - Math.abs(cp)) / 10) + 1;
  // approx depth for searches that end early with mate
  depth = Math.max(depth || 0, mate * 2 - 1);
  // correct sign and add sunsetter played moves
- mate = Math.sign(cp) * (mate + aiMoves)
+ mate = Math.sign(cp) * (mate + aiMoves);
  cp = undefined;
  }
 
- if (mate) {
- stopping = true
- send('force');
- send('tellics stopped');
- }
-
  work.emit({
  work: work,
  eval: {
@@ -89,7 +83,7 @@ module.exports = function(opts, name) {
 
  var reboot = function() {
  if (instance) instance.terminate();
- instance = new Worker('/assets/vendor/Sunsetter/sunsetter.js');
+ instance = new Worker('/assets/vendor/Sunsetter8/sunsetter.js');
  busy = false;
  stopping = false;
  aiMoves = 0;
@@ -102,8 +96,9 @@ module.exports = function(opts, name) {
  start: function(work) {
  if (busy) reboot();
  busy = true;
- send('variant ' + opts.variant.key);
+ send('reset ' + opts.variant.key);
  send('setboard ' + work.initialFen);
+ send('easy');
  send('force');
  for (var i = 0; i < work.moves.length; i++) {
  send(work.moves[i]);