Added move with comments logic

game.go

@@ -154,9 +154,9 @@ func NewGame(options ...func(*Game)) *Game {
 	return game
 }
 
-// Move updates the game with the given move.  An error is returned
+// MoveWithComments updates the game with the given move and set comments. An error is returned
 // if the move is invalid or the game has already been completed.
-func (g *Game) Move(m *Move) error {
+func (g *Game) MoveWithComments(m *Move, comments []string) error {
 	valid := moveSlice(g.ValidMoves()).find(m)
 	if valid == nil {
 		return fmt.Errorf("chess: invalid move %s", m)
@@ -165,9 +165,16 @@ func (g *Game) Move(m *Move) error {
 	g.pos = g.pos.Update(valid)
 	g.positions = append(g.positions, g.pos)
 	g.updatePosition()
+	g.comments = append(g.comments, comments)
 	return nil
 }
 
+// Move updates the game with the given move.  An error is returned
+// if the move is invalid or the game has already been completed.
+func (g *Game) Move(m *Move) error {
+	return g.MoveWithComments(m, nil)
+}
+
 // MoveStr decodes the given string in game's notation
 // and calls the Move function.  An error is returned if
 // the move can't be decoded or the move is invalid.
@@ -176,7 +183,18 @@ func (g *Game) MoveStr(s string) error {
 	if err != nil {
 		return err
 	}
-	return g.Move(m)
+	return g.MoveWithComments(m, nil)
+}
+
+// MoveStrWithComments decodes the given string in game's notation
+// and calls the Move function.  An error is returned if
+// the move can't be decoded or the move is invalid.
+func (g *Game) MoveStrWithComments(s string, comments []string) error {
+	m, err := g.notation.Decode(g.pos, s)
+	if err != nil {
+		return err
+	}
+	return g.MoveWithComments(m, comments)
 }
 
 // ValidMoves returns a list of valid moves in the

pgn.go

@@ -171,10 +171,9 @@ func decodePGN(pgn string) (*Game, error) {
 		if err != nil {
 			return nil, fmt.Errorf("chess: pgn decode error %s on move %d", err.Error(), g.Position().moveCount)
 		}
-		if err := g.Move(m); err != nil {
+		if err := g.MoveWithComments(m, move.Comments); err != nil {
 			return nil, fmt.Errorf("chess: pgn invalid move error %s on move %d", err.Error(), g.Position().moveCount)
 		}
-		g.comments = append(g.comments, move.Comments)
 	}
 	g.outcome = outcome
 	return g, nil