-
Notifications
You must be signed in to change notification settings - Fork 21
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Support displaying the advantage graph
- Loading branch information
Showing
65 changed files
with
365 additions
and
85 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
106 changes: 106 additions & 0 deletions
106
src/ui/flutter_app/lib/game_page/services/painters/advantage_graph_painter.dart
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| // This file is part of Sanmill. | ||
| // Copyright (C) 2019-2024 The Sanmill developers (see AUTHORS file) | ||
| // | ||
| // Sanmill is free software: you can redistribute it and/or modify | ||
| // it under the terms of the GNU General Public License as published by | ||
| // the Free Software Foundation, either version 3 of the License, or | ||
| // (at your option) any later version. | ||
| // | ||
| // Sanmill is distributed in the hope that it will be useful, | ||
| // but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| // GNU General Public License for more details. | ||
| // | ||
| // You should have received a copy of the GNU General Public License | ||
| // along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
|
|
||
| import 'dart:math' as math; | ||
|
|
||
| import 'package:flutter/material.dart'; | ||
|
|
||
| import '../../../shared/database/database.dart'; | ||
|
|
||
| /// A custom painter to draw the advantage trend line, but only for the most recent 20 moves. | ||
| /// Positive values indicate white advantage, negative indicate black advantage. | ||
| /// If there are more than 20 moves, only the last 20 are shown. | ||
| /// As new moves come in, older moves are discarded from the left side. | ||
| class AdvantageGraphPainter extends CustomPainter { | ||
| AdvantageGraphPainter(this.data); | ||
|
|
||
| final List<int> data; | ||
|
|
||
| @override | ||
| void paint(Canvas canvas, Size size) { | ||
| // Determine how many data points to show (up to 20). | ||
| final int showCount = math.min(20, data.length); | ||
|
|
||
| // If not enough data points, do nothing. | ||
| if (showCount < 2) { | ||
| return; | ||
| } | ||
|
|
||
| // Extract the subset of the data (last showCount moves). | ||
| final List<int> shownData = data.sublist(data.length - showCount); | ||
|
|
||
| // Paint for the advantage line. | ||
| final Paint linePaint = Paint() | ||
| ..color = Color.lerp( | ||
| DB().colorSettings.whitePieceColor, | ||
| DB().colorSettings.blackPieceColor, | ||
| 0.5, | ||
| )! | ||
| ..strokeWidth = 2 | ||
| ..style = PaintingStyle.stroke; | ||
|
|
||
| // Paint for the zero advantage line. | ||
| final Paint zeroLinePaint = Paint() | ||
| ..color = DB().colorSettings.boardBackgroundColor | ||
| ..strokeWidth = 1 | ||
| ..style = PaintingStyle.stroke; | ||
|
|
||
| const double margin = 10.0; | ||
| final double chartWidth = size.width - margin * 2; | ||
| final double chartHeight = size.height - margin * 2; | ||
|
|
||
| // Zero line (value=0) in the vertical center. | ||
| final double zeroY = margin + chartHeight / 2; | ||
|
|
||
| // Function to map advantage values [-100, 100] to canvas Y coordinates. | ||
| double valueToPixel(int val) { | ||
| // val=100 => top (margin) | ||
| // val=-100 => bottom (margin+chartHeight) | ||
| // val=0 => zeroY | ||
| return zeroY - (val * (chartHeight / 200.0)); | ||
| } | ||
|
|
||
| // Horizontal step between points for the shownData subset. | ||
| final int count = shownData.length; | ||
| final double dxStep = chartWidth / (count - 1); | ||
|
|
||
| final Path path = Path(); | ||
| for (int i = 0; i < count; i++) { | ||
| final double x = margin + i * dxStep; | ||
| final double y = valueToPixel(shownData[i]); | ||
| if (i == 0) { | ||
| path.moveTo(x, y); | ||
| } else { | ||
| path.lineTo(x, y); | ||
| } | ||
| } | ||
|
|
||
| // Draw the zero advantage line. | ||
| canvas.drawLine( | ||
| Offset(margin, zeroY), | ||
| Offset(size.width - margin, zeroY), | ||
| zeroLinePaint, | ||
| ); | ||
|
|
||
| // Draw the line path. | ||
| canvas.drawPath(path, linePaint); | ||
| } | ||
|
|
||
| @override | ||
| bool shouldRepaint(AdvantageGraphPainter oldDelegate) { | ||
| return oldDelegate.data != data; | ||
| } | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.