dkforest

commit 3c4495c0508af9f35c8e8dc9e084318989f10332
parent dbfda74d4d7e61d2972b4c27c5356482f4dfcbc4
Author: n0tr1v <n0tr1v@protonmail.com>
Date:   Thu, 15 Jun 2023 19:24:20 -0700

reduce bandwidth and css animations

Diffstat:
M
pkg/web/handlers/chess.go
 | 
20
++++++++++++++------

1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/pkg/web/handlers/chess.go b/pkg/web/handlers/chess.go
@@ -764,7 +764,7 @@ Loop:
 
 				var styles StylesBuilder
 				renderAdvantages(&styles, pos)
-				renderHideAllPieces(&styles)
+				renderHideAllPieces(&styles, piecesCache, piecesCache1, squareMap)
 				renderChecks(&styles, checkIDStr)
 				renderLastMove(&styles, *lastMove)
 				renderBestMove(&styles, bestMove, isFlipped)
@@ -888,12 +888,20 @@ func renderAdvantages(styles *StylesBuilder, pos *chess.Position) {
 	styles.Appendf(`#black-advantage .score:after { content: "%s" !important; }`, blackScore)
 }
 
-func renderHideAllPieces(styles *StylesBuilder) {
-	ids := make([]string, 64)
-	for i := 0; i < 64; i++ {
-		ids[i] = "#piece_" + chess.Square(i).String()
+func renderHideAllPieces(styles *StylesBuilder, piecesCache map[chess.Square]string, piecesCache1 map[string]chess.Square, squareMap map[chess.Square]chess.Piece) {
+	toHideMap := make(map[string]struct{})
+	for id, _ := range piecesCache1 {
+		toHideMap[id] = struct{}{}
+	}
+	for sq := range squareMap {
+		idOnSq, _ := piecesCache[sq]
+		delete(toHideMap, idOnSq)
+	}
+	toHide := make([]string, 0)
+	for id := range toHideMap {
+		toHide = append(toHide, "#"+id)
 	}
-	styles.Appendf(`%s { display: none !important; }`, strings.Join(ids, ", "))
+	styles.Appendf(`%s { display: none !important; }`, strings.Join(toHide, ", "))
 }
 
 func calcDisc(x1, y1, x2, y2 int) (d int, isDiag, isLine bool) {