X-Git-Url: https://git.auder.net/?a=blobdiff_plain;f=public%2Fjavascripts%2Fbase_rules.js;h=5020094ce6582c326473acbc74f1e1b9b1901348;hb=a3c86ec9b60326a8ae3d8f237493fb09627aed95;hp=5c1ef97c08563f0ac7e0bc3ffee9730a37b75150;hpb=9234226104764b91df9d677fb360ad538b98510c;p=vchess.git

diff --git a/public/javascripts/base_rules.js b/public/javascripts/base_rules.js
index 5c1ef97c..5020094c 100644
--- a/public/javascripts/base_rules.js
+++ b/public/javascripts/base_rules.js
@@ -729,6 +729,10 @@ class ChessRules
 
 	play(move, ingame)
 	{
+		// DEBUG:
+//		if (!this.states) this.states = [];
+//		if (!ingame) this.states.push(JSON.stringify(this.board));
+
 		if (!!ingame)
 			move.notation = [this.getNotation(move), this.getLongNotation(move)];
 
@@ -746,12 +750,18 @@ class ChessRules
 		this.moves.pop();
 		this.unupdateVariables(move);
 		this.parseFlags(JSON.parse(move.flags));
+
+		// DEBUG:
+//		if (JSON.stringify(this.board) != this.states[this.states.length-1])
+//			debugger;
+//		this.states.pop();
 	}
 
 	//////////////
 	// END OF GAME
 
 	// Basic check for 3 repetitions (in the last moves only)
+	// TODO: extend to usual 3-repetition recognition (storing FEN with move?)
 	checkRepetition()
 	{
 		if (this.moves.length >= 8)
@@ -824,7 +834,6 @@ class ChessRules
 	// NOTE: works also for extinction chess because depth is 3...
 	getComputerMove()
 	{
-		this.shouldReturn = false;
 		const maxeval = VariantRules.INFINITY;
 		const color = this.turn;
 		// Some variants may show a bigger moves list to the human (Switching),
@@ -889,14 +898,17 @@ class ChessRules
 			candidates.push(j);
 		let currentBest = moves1[_.sample(candidates, 1)];
 
+		// From here, depth >= 3: may take a while, so we control time
+		const timeStart = Date.now();
+
 		// Skip depth 3+ if we found a checkmate (or if we are checkmated in 1...)
 		if (VariantRules.SEARCH_DEPTH >= 3
 			&& Math.abs(moves1[0].eval) < VariantRules.THRESHOLD_MATE)
 		{
 			for (let i=0; i<moves1.length; i++)
 			{
-				if (this.shouldReturn)
-					return currentBest; //depth-2, minimum
+				if (Date.now()-timeStart >= 5000) //more than 5 seconds
+					return currentBest; //depth 2 at least
 				this.play(moves1[i]);
 				// 0.1 * oldEval : heuristic to avoid some bad moves (not all...)
 				moves1[i].eval = 0.1*moves1[i].eval +
@@ -986,9 +998,9 @@ class ChessRules
 	// Setup the initial random (assymetric) position
 	static GenRandInitFen()
 	{
-		let pieces = [new Array(8), new Array(8)];
+		let pieces = { "w": new Array(8), "b": new Array(8) };
 		// Shuffle pieces on first and last rank
-		for (let c = 0; c <= 1; c++)
+		for (let c of ["w","b"])
 		{
 			let positions = _.range(8);
 
@@ -1030,11 +1042,10 @@ class ChessRules
 			pieces[c][knight2Pos] = 'n';
 			pieces[c][rook2Pos] = 'r';
 		}
-		let fen = pieces[0].join("") +
+		return pieces["b"].join("") +
 			"/pppppppp/8/8/8/8/PPPPPPPP/" +
-			pieces[1].join("").toUpperCase() +
+			pieces["w"].join("").toUpperCase() +
 			" 1111"; //add flags
-		return fen;
 	}
 
 	// Return current fen according to pieces+colors state