1.9.1

feat(layout): use native browser scroll for game board on desktop
1.9.0
2026-02-11 05:49:48 +01:00 · 2026-02-11 05:49:47 +01:00 · 2026-02-11 05:31:50 +01:00 · 2026-02-11 05:31:49 +01:00 · 2026-02-11 05:24:12 +01:00 · 2026-02-11 05:22:32 +01:00
14 changed files with 2669 additions and 153 deletions
--- a/check_i18n.js
+++ b/check_i18n.js
@@ -0,0 +1,37 @@
+
+const fs = require('fs');
+
+const fileContent = fs.readFileSync('src/composables/useI18n.js', 'utf8');
+
+// Extract the messages object
+const match = fileContent.match(/const messages = ({[\s\S]*?});/);
+if (!match) {
+  console.error('Could not find messages object');
+  process.exit(1);
+}
+
+// We need to make the string valid JS to eval it.
+// It seems the content inside `const messages = { ... };` is valid JS object notation.
+// But we need to be careful about imports or other things if we were to `eval` the whole file.
+// We'll just `eval` the object part.
+
+const messagesStr = match[1];
+const messages = eval(`(${messagesStr})`);
+
+const enKeys = Object.keys(messages.en);
+const languages = Object.keys(messages);
+
+const missing = {};
+
+languages.forEach(lang => {
+  if (lang === 'en') return;
+  
+  const langKeys = Object.keys(messages[lang]);
+  const missingKeys = enKeys.filter(k => !langKeys.includes(k));
+  
+  if (missingKeys.length > 0) {
+    missing[lang] = missingKeys;
+  }
+});
+
+console.log(JSON.stringify(missing, null, 2));
--- a/difficulty_simulation_results.csv
+++ b/difficulty_simulation_results.csv
@@ -0,0 +1,118 @@
+size,density,avg_solved_percent,min_solved_percent,max_solved_percent,avg_time_ms
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+45,0.6,81.72,6.02,100.00,5.28
+45,0.7,99.94,99.41,100.00,1.28
+45,0.8,100.00,100.00,100.00,0.64
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+50,0.1,1.70,0.00,5.92,0.20
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+60,0.5,0.23,0.00,1.67,1.24
+60,0.6,35.02,1.33,100.00,10.76
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+70,0.6,16.40,1.00,99.71,22.21
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+70,0.8,100.00,99.92,100.00,2.03
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+80,0.1,0.00,0.00,0.00,0.44
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+80,0.5,0.01,0.00,0.08,1.97
+80,0.6,1.21,0.41,2.30,3.92
+80,0.7,99.98,99.94,100.00,7.79
+80,0.8,100.00,100.00,100.00,3.14
+80,0.9,100.00,100.00,100.00,1.31
--- a/difficulty_simulation_results.json
+++ b/difficulty_simulation_results.json
@@ -0,0 +1,938 @@
+[
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+    "avgTime": 0.09598544999999917
+  },
+  {
+    "size": 35,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.1290145000000038
+  },
+  {
+    "size": 35,
+    "density": 0.4,
+    "avgSolved": 0.1346938775510204,
+    "minSolved": 0,
+    "maxSolved": 0.5714285714285714,
+    "avgTime": 0.21904799999999797
+  },
+  {
+    "size": 35,
+    "density": 0.5,
+    "avgSolved": 4.424489795918367,
+    "minSolved": 0.40816326530612246,
+    "maxSolved": 23.183673469387756,
+    "avgTime": 0.5596769500000022
+  },
+  {
+    "size": 35,
+    "density": 0.6,
+    "avgSolved": 91.1061224489796,
+    "minSolved": 8.408163265306122,
+    "maxSolved": 100,
+    "avgTime": 1.5827311000000024
+  },
+  {
+    "size": 35,
+    "density": 0.7,
+    "avgSolved": 99.9673469387755,
+    "minSolved": 99.67346938775509,
+    "maxSolved": 100,
+    "avgTime": 0.5970167499999988
+  },
+  {
+    "size": 35,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.33084175000000327
+  },
+  {
+    "size": 35,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.1685022000000032
+  },
+  {
+    "size": 40,
+    "density": 0.1,
+    "avgSolved": 2.734375,
+    "minSolved": 0,
+    "maxSolved": 9.8125,
+    "avgTime": 0.13156869999999826
+  },
+  {
+    "size": 40,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.13052910000000112
+  },
+  {
+    "size": 40,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.17675199999999905
+  },
+  {
+    "size": 40,
+    "density": 0.4,
+    "avgSolved": 0.03125,
+    "minSolved": 0,
+    "maxSolved": 0.3125,
+    "avgTime": 0.26616039999999686
+  },
+  {
+    "size": 40,
+    "density": 0.5,
+    "avgSolved": 2.14375,
+    "minSolved": 0,
+    "maxSolved": 9.5625,
+    "avgTime": 0.694316649999999
+  },
+  {
+    "size": 40,
+    "density": 0.6,
+    "avgSolved": 91.44375,
+    "minSolved": 22.3125,
+    "maxSolved": 100,
+    "avgTime": 2.9244042000000006
+  },
+  {
+    "size": 40,
+    "density": 0.7,
+    "avgSolved": 99.9875,
+    "minSolved": 99.75,
+    "maxSolved": 100,
+    "avgTime": 0.8381519999999967
+  },
+  {
+    "size": 40,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.4339062999999925
+  },
+  {
+    "size": 40,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.2375938000000076
+  },
+  {
+    "size": 45,
+    "density": 0.1,
+    "avgSolved": 1.7827160493827159,
+    "minSolved": 0,
+    "maxSolved": 4.691358024691358,
+    "avgTime": 0.1660813500000046
+  },
+  {
+    "size": 45,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.1715666999999968
+  },
+  {
+    "size": 45,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.23760415000000706
+  },
+  {
+    "size": 45,
+    "density": 0.4,
+    "avgSolved": 0.012345679012345678,
+    "minSolved": 0,
+    "maxSolved": 0.14814814814814814,
+    "avgTime": 0.333931249999992
+  },
+  {
+    "size": 45,
+    "density": 0.5,
+    "avgSolved": 1.439506172839506,
+    "minSolved": 0.39506172839506176,
+    "maxSolved": 5.135802469135802,
+    "avgTime": 0.9644125499999916
+  },
+  {
+    "size": 45,
+    "density": 0.6,
+    "avgSolved": 81.71851851851852,
+    "minSolved": 6.0246913580246915,
+    "maxSolved": 100,
+    "avgTime": 5.281324949999998
+  },
+  {
+    "size": 45,
+    "density": 0.7,
+    "avgSolved": 99.94074074074075,
+    "minSolved": 99.4074074074074,
+    "maxSolved": 100,
+    "avgTime": 1.2768960000000107
+  },
+  {
+    "size": 45,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.638566650000007
+  },
+  {
+    "size": 45,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.3004915999999923
+  },
+  {
+    "size": 50,
+    "density": 0.1,
+    "avgSolved": 1.7,
+    "minSolved": 0,
+    "maxSolved": 5.92,
+    "avgTime": 0.20294785000000387
+  },
+  {
+    "size": 50,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.23199789999999892
+  },
+  {
+    "size": 50,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.29876259999999205
+  },
+  {
+    "size": 50,
+    "density": 0.4,
+    "avgSolved": 0.008,
+    "minSolved": 0,
+    "maxSolved": 0.16,
+    "avgTime": 0.38459799999998834
+  },
+  {
+    "size": 50,
+    "density": 0.5,
+    "avgSolved": 0.5099999999999999,
+    "minSolved": 0,
+    "maxSolved": 1.7999999999999998,
+    "avgTime": 0.8961771499999941
+  },
+  {
+    "size": 50,
+    "density": 0.6,
+    "avgSolved": 73.258,
+    "minSolved": 5.6000000000000005,
+    "maxSolved": 100,
+    "avgTime": 7.937735449999991
+  },
+  {
+    "size": 50,
+    "density": 0.7,
+    "avgSolved": 99.96399999999998,
+    "minSolved": 99.76,
+    "maxSolved": 100,
+    "avgTime": 1.6324250000000062
+  },
+  {
+    "size": 50,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.8293270000000064
+  },
+  {
+    "size": 50,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.41459575000000654
+  },
+  {
+    "size": 60,
+    "density": 0.1,
+    "avgSolved": 0.16666666666666669,
+    "minSolved": 0,
+    "maxSolved": 1.6666666666666667,
+    "avgTime": 0.2432124999999928
+  },
+  {
+    "size": 60,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.35082704999999237
+  },
+  {
+    "size": 60,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.49827310000000014
+  },
+  {
+    "size": 60,
+    "density": 0.4,
+    "avgSolved": 0.0027777777777777775,
+    "minSolved": 0,
+    "maxSolved": 0.05555555555555555,
+    "avgTime": 0.6393062499999985
+  },
+  {
+    "size": 60,
+    "density": 0.5,
+    "avgSolved": 0.23055555555555554,
+    "minSolved": 0,
+    "maxSolved": 1.6666666666666667,
+    "avgTime": 1.2402395500000012
+  },
+  {
+    "size": 60,
+    "density": 0.6,
+    "avgSolved": 35.01805555555556,
+    "minSolved": 1.3333333333333335,
+    "maxSolved": 100,
+    "avgTime": 10.759754149999992
+  },
+  {
+    "size": 60,
+    "density": 0.7,
+    "avgSolved": 99.96944444444445,
+    "minSolved": 99.83333333333333,
+    "maxSolved": 100,
+    "avgTime": 2.964204100000029
+  },
+  {
+    "size": 60,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 1.2736664999999903
+  },
+  {
+    "size": 60,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.6249353999999812
+  },
+  {
+    "size": 70,
+    "density": 0.1,
+    "avgSolved": 0.14285714285714285,
+    "minSolved": 0,
+    "maxSolved": 1.4285714285714286,
+    "avgTime": 0.34277719999998907
+  },
+  {
+    "size": 70,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.5435105000000249
+  },
+  {
+    "size": 70,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.7600602999999865
+  },
+  {
+    "size": 70,
+    "density": 0.4,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.9591250999999943
+  },
+  {
+    "size": 70,
+    "density": 0.5,
+    "avgSolved": 0.04081632653061225,
+    "minSolved": 0,
+    "maxSolved": 0.2857142857142857,
+    "avgTime": 1.491010399999982
+  },
+  {
+    "size": 70,
+    "density": 0.6,
+    "avgSolved": 16.403061224489797,
+    "minSolved": 1,
+    "maxSolved": 99.71428571428571,
+    "avgTime": 22.21432699999999
+  },
+  {
+    "size": 70,
+    "density": 0.7,
+    "avgSolved": 99.96836734693878,
+    "minSolved": 99.73469387755102,
+    "maxSolved": 100,
+    "avgTime": 4.92020829999999
+  },
+  {
+    "size": 70,
+    "density": 0.8,
+    "avgSolved": 99.99591836734695,
+    "minSolved": 99.91836734693878,
+    "maxSolved": 100,
+    "avgTime": 2.0306394499999554
+  },
+  {
+    "size": 70,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 0.8882499500000336
+  },
+  {
+    "size": 80,
+    "density": 0.1,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.4418666499999858
+  },
+  {
+    "size": 80,
+    "density": 0.2,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 0.7795667999999978
+  },
+  {
+    "size": 80,
+    "density": 0.3,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 1.0745101999999747
+  },
+  {
+    "size": 80,
+    "density": 0.4,
+    "avgSolved": 0,
+    "minSolved": 0,
+    "maxSolved": 0,
+    "avgTime": 1.3407041500000105
+  },
+  {
+    "size": 80,
+    "density": 0.5,
+    "avgSolved": 0.0125,
+    "minSolved": 0,
+    "maxSolved": 0.078125,
+    "avgTime": 1.9724897000000283
+  },
+  {
+    "size": 80,
+    "density": 0.6,
+    "avgSolved": 1.21484375,
+    "minSolved": 0.40625,
+    "maxSolved": 2.296875,
+    "avgTime": 3.9163123999999927
+  },
+  {
+    "size": 80,
+    "density": 0.7,
+    "avgSolved": 99.978125,
+    "minSolved": 99.9375,
+    "maxSolved": 100,
+    "avgTime": 7.790070799999967
+  },
+  {
+    "size": 80,
+    "density": 0.8,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 3.1350061999999754
+  },
+  {
+    "size": 80,
+    "density": 0.9,
+    "avgSolved": 100,
+    "minSolved": 100,
+    "maxSolved": 100,
+    "avgTime": 1.3134414999999535
+  }
+]
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
  "name": "vue-nonograms-solid",
-  "version": "1.8.2",
+  "version": "1.9.1",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "vue-nonograms-solid",
-      "version": "1.8.2",
+      "version": "1.9.1",
      "dependencies": {
        "fireworks-js": "^2.10.8",
        "flag-icons": "^7.5.0",
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
  "name": "vue-nonograms-solid",
-  "version": "1.8.2",
+  "version": "1.9.1",
  "type": "module",
  "scripts": {
    "dev": "vite",
--- a/scripts/add_simulation_translations.cjs
+++ b/scripts/add_simulation_translations.cjs
@@ -0,0 +1,61 @@
+const fs = require('fs');
+const path = require('path');
+
+const filePath = path.join(__dirname, '../src/composables/useI18n.js');
+let content = fs.readFileSync(filePath, 'utf8');
+
+const newKeys = {
+    'custom.simulationHelp': 'How is this calculated?',
+    'custom.hideMap': 'Hide difficulty map',
+    'custom.showMap': 'Show difficulty map',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation'
+};
+
+const lines = content.split('\n');
+const processedLines = [];
+let currentLang = null;
+
+for (let i = 0; i < lines.length; i++) {
+    let line = lines[i];
+    
+    // Detect start of language block
+    const startMatch = line.match(/^\s{2}(['"]?[\w-]+['"]?): \{/);
+    if (startMatch) {
+        currentLang = startMatch[1].replace(/['"]/g, '');
+    }
+
+    // Detect end of language block
+    if (currentLang && (line.trim() === '},' || line.trim() === '}')) {
+        if (currentLang !== 'pl' && currentLang !== 'en') {
+            // Ensure previous line has comma
+            if (processedLines.length > 0) {
+                let lastLine = processedLines[processedLines.length - 1];
+                if (!lastLine.trim().endsWith(',') && !lastLine.trim().endsWith('{')) {
+                    processedLines[processedLines.length - 1] = lastLine + ',';
+                }
+            }
+
+            // Append new keys
+            Object.entries(newKeys).forEach(([key, value]) => {
+                processedLines.push(`    '${key}': '${value}',`);
+            });
+        }
+        currentLang = null;
+    }
+    
+    processedLines.push(line);
+}
+
+const finalContent = processedLines.join('\n');
+fs.writeFileSync(filePath, finalContent);
+console.log('Successfully added simulation translations to all languages.');
--- a/scripts/add_simulation_translations.js
+++ b/scripts/add_simulation_translations.js
@@ -0,0 +1,97 @@
+
+const fs = require('fs');
+const path = require('path');
+
+const filePath = path.join(__dirname, '../src/composables/useI18n.js');
+let content = fs.readFileSync(filePath, 'utf8');
+
+const newKeys = {
+    'custom.simulationHelp': 'How is this calculated?',
+    'simulation.title': 'Difficulty Simulation',
+    'simulation.status.ready': 'Ready',
+    'simulation.status.stopped': 'Stopped',
+    'simulation.status.completed': 'Completed',
+    'simulation.status.simulating': 'Simulating {size}x{size} @ {density}%',
+    'simulation.start': 'Start Simulation',
+    'simulation.stop': 'Stop',
+    'simulation.table.size': 'Size',
+    'simulation.table.density': 'Density',
+    'simulation.table.solved': 'Solved (Logic)',
+    'simulation.empty': 'Press Start to run Monte Carlo simulation'
+};
+
+// Regex to match the end of a language block
+// Matches "  }," or "  }" at the start of a line
+const blockEndRegex = /^(\s{2})\},?$/gm;
+
+let newContent = content.replace(blockEndRegex, (match, indent, offset) => {
+    // Determine which language we are closing
+    const precedingText = content.substring(0, offset);
+    const langMatch = precedingText.match(/^\s{2}(\w+([-]\w+)?): \{/gm);
+    
+    if (!langMatch) return match;
+    const currentLangLine = langMatch[langMatch.length - 1];
+    const currentLang = currentLangLine.match(/^\s{2}(\w+([-]\w+)?): \{/)[1];
+
+    // Skip pl and en as they are already updated
+    if (currentLang === 'pl' || currentLang === 'en') {
+        return match;
+    }
+
+    // Check if the previous line has a comma
+    // We need to look at the lines before the match
+    // This is tricky with replace callback. 
+    // Easier strategy: Just insert the keys. 
+    // If the file is well formatted, the last item might or might not have a comma.
+    // But we can ensure *our* inserted block starts with a comma if needed? 
+    // No, standard JS objects need comma after previous item.
+    
+    // Let's assume we simply inject before the closing brace.
+    // We'll add a comma to the previous line if it doesn't have one?
+    // That's hard with regex replace on the closing brace only.
+    
+    // Alternative: Split by lines and process.
+    return match; // Placeholder, we will process by lines below.
+});
+
+const lines = content.split('\n');
+const processedLines = [];
+let currentLang = null;
+
+for (let i = 0; i < lines.length; i++) {
+    let line = lines[i];
+    
+    // Detect start of language block
+    const startMatch = line.match(/^\s{2}(['"]?[\w-]+['"]?): \{/);
+    if (startMatch) {
+        currentLang = startMatch[1].replace(/['"]/g, '');
+    }
+
+    // Detect end of language block
+    if (currentLang && (line.trim() === '},' || line.trim() === '}')) {
+        if (currentLang !== 'pl' && currentLang !== 'en') {
+            // Ensure previous line has comma
+            if (processedLines.length > 0) {
+                let lastLine = processedLines[processedLines.length - 1];
+                if (!lastLine.trim().endsWith(',') && !lastLine.trim().endsWith('{')) {
+                    processedLines[processedLines.length - 1] = lastLine + ',';
+                }
+            }
+
+            // Append new keys
+            Object.entries(newKeys).forEach(([key, value]) => {
+                processedLines.push(`    '${key}': '${value}',`);
+            });
+            
+            // Remove trailing comma from last inserted item if we want strictly JSON-like (but JS allows it)
+            // It's fine to leave it.
+        }
+        currentLang = null;
+    }
+    
+    processedLines.push(line);
+}
+
+const finalContent = processedLines.join('\n');
+fs.writeFileSync(filePath, finalContent);
+console.log('Successfully added simulation translations to all languages.');
--- a/src/App.vue
+++ b/src/App.vue
@@ -186,7 +186,7 @@ onUnmounted(() => {
 .game-container {
  display: flex;
  flex-direction: column;
-  align-items: center;
+  align-items: stretch; /* was center */
  gap: 20px;
  width: 100%;
  padding-bottom: 50px;
@@ -202,7 +202,7 @@ onUnmounted(() => {
  align-items: center;
  width: 90%;
  max-width: 600px;
-  margin-bottom: 20px;
+  margin: 0 auto 20px auto; /* Center it manually */
  box-shadow: var(--banner-shadow);
 }

@@ -227,17 +227,24 @@ onUnmounted(() => {
 .game-layout {
  display: flex;
  flex-direction: column;
-  align-items: center;
+  align-items: stretch;
  gap: 20px;
  width: 100%;
-  max-width: 1200px;
  padding: 0 20px;
 }

+/* Center children (except board section which handles itself) */
+.game-layout > *:not(.board-section) {
+    margin-left: auto;
+    margin-right: auto;
+    max-width: 1200px; /* Keep constraint for panels */
+    width: 100%;
+}
+
 .board-section {
-  display: flex;
-  justify-content: center;
+  display: block;
  width: 100%;
+  overflow-x: visible;
 }

 .fade-enter-active,
--- a/src/components/CustomGameModal.vue
+++ b/src/components/CustomGameModal.vue
@@ -14,6 +14,7 @@ const fillRate = ref(50);
 const errorMsg = ref('');
 const difficultyCanvas = ref(null);
 const isDragging = ref(false);
+const cachedBackground = ref(null);

 const drawMap = () => {
  const canvas = difficultyCanvas.value;
@@ -25,46 +26,42 @@ const drawMap = () => {
  // Clear
  ctx.clearRect(0, 0, width, height);

-  // Draw Gradient Background
-  // Optimization: Create an image data once if static, but here it's small enough.
-  const imgData = ctx.createImageData(width, height);
-  const data = imgData.data;
+  // Use cached background if available
+  if (cachedBackground.value) {
+      ctx.putImageData(cachedBackground.value, 0, 0);
+  } else {
+      // Draw Gradient Background (Heavy calculation)
+      const imgData = ctx.createImageData(width, height);
+      const data = imgData.data;

-  // Ranges:
-  // X: Fill Rate 10% -> 90%
-  // Y: Size 5 -> 80
+      // Ranges:
+      // X: Fill Rate 10% -> 90%
+      // Y: Size 5 -> 80
      
-  for (let y = 0; y < height; y++) {
-    for (let x = 0; x < width; x++) {
-      // Map x, y to fillRate, size
-      // y=0 -> size 80 (top), y=height -> size 5 (bottom)
-      // x=0 -> fill 10%, x=width -> fill 90%
+      for (let y = 0; y < height; y++) {
+        for (let x = 0; x < width; x++) {
+          const normalizedX = x / width;
+          const normalizedY = 1 - (y / height); // 0 at bottom, 1 at top
          
-      const normalizedX = x / width;
-      const normalizedY = 1 - (y / height); // 0 at bottom, 1 at top
+          const fRate = 0.1 + normalizedX * 0.8; // 0.1 to 0.9
+          const sSize = 5 + normalizedY * 75;    // 5 to 80
          
-      const fRate = 0.1 + normalizedX * 0.8; // 0.1 to 0.9
-      const sSize = 5 + normalizedY * 75;    // 5 to 80
+          const { value } = calculateDifficulty(fRate, sSize);
          
-      const { value } = calculateDifficulty(fRate, sSize);
+          // Color Mapping
+          const hue = 120 * (1 - value / 100);
+          const [r, g, b] = hslToRgb(hue / 360, 1, 0.5);
          
-      // Color Mapping:
-      // Green (0%) -> Yellow (50%) -> Red (100%)
-      // Hue: 120 -> 0
-      const hue = 120 * (1 - value / 100);
-      
-      // Convert HSL to RGB (Simplified)
-      // Saturation 100%, Lightness 50%
-      const [r, g, b] = hslToRgb(hue / 360, 1, 0.5);
-      
-      const index = (y * width + x) * 4;
-      data[index] = r;
-      data[index + 1] = g;
-      data[index + 2] = b;
-      data[index + 3] = 255; // Alpha
-    }
+          const index = (y * width + x) * 4;
+          data[index] = r;
+          data[index + 1] = g;
+          data[index + 2] = b;
+          data[index + 3] = 255; // Alpha
+        }
+      }
+      ctx.putImageData(imgData, 0, 0);
+      cachedBackground.value = imgData;
  }
-  ctx.putImageData(imgData, 0, 0);

  // Draw current position
  // Map current fillRate/size to x,y
@@ -166,6 +163,8 @@ const showAdvanced = ref(false);
 const toggleAdvanced = () => {
    showAdvanced.value = !showAdvanced.value;
    if (showAdvanced.value) {
+        // Reset cache when opening to ensure size is correct if canvas resized
+        cachedBackground.value = null; 
        nextTick(drawMap);
    }
 };
@@ -306,7 +305,7 @@ const confirm = () => {

      <div class="advanced-toggle">
          <button class="btn-text" @click="toggleAdvanced">
-              {{ showAdvanced ? 'Ukryj mapę trudności' : 'Pokaż mapę trudności' }}
+              {{ showAdvanced ? t('custom.hideMap') : t('custom.showMap') }}
          </button>
      </div>
      
--- a/src/components/GameBoard.vue
+++ b/src/components/GameBoard.vue
@@ -118,6 +118,8 @@ const computeCellSize = () => {
  const gap = parseFloat(gapRaw);
  const gridPad = parseFloat(gridPadRaw);

+  const isDesktop = window.matchMedia('(min-width: 769px)').matches;
+
  let containerWidth;
  if (scrollWrapper.value) {
    containerWidth = scrollWrapper.value.clientWidth;
@@ -131,8 +133,15 @@ const computeCellSize = () => {
  const availableForGrid = Math.max(0, containerWidth - hintWidth);
  
  const size = Math.floor((availableForGrid - gridPad * 2 - (store.size - 1) * gap) / store.size);
-  // Keep min 18, max 36
-  cellSize.value = Math.max(18, Math.min(36, size));
+  
+  if (isDesktop) {
+      // Desktop: Allow overflow, use comfortable size
+      cellSize.value = 30;
+  } else {
+      // Mobile: Fit to screen
+      // Keep min 18, max 36
+      cellSize.value = Math.max(18, Math.min(36, size));
+  }
 };

 const handleGlobalMouseUp = () => {
@@ -258,8 +267,15 @@ watch(() => store.size, async () => {
 /* Desktop: Remove scroll behavior to ensure full grid visibility */
@media (min-width: 769px) {
  .game-board-wrapper {
-    overflow-x: auto; /* Allow scrolling if grid is too large (e.g. 80x80) */
-    align-items: center; /* Center the grid on desktop */
+    overflow: visible;
+    width: max-content;
+    min-width: 100%;
+    margin: 0 auto; /* Center the wrapper safely */
+    align-items: flex-start; /* Prevent cropping when centered */
+  }
+  
+  .game-container {
+      /* margin: 0 auto; - wrapper handles centering now */
  }
 }

--- a/src/composables/useI18n.js
+++ b/src/composables/useI18n.js
--- a/src/composables/useNonogram.js
+++ b/src/composables/useNonogram.js
@@ -44,6 +44,7 @@ export function useNonogram() {
  };

  const stopDrag = () => {
+    store.endInteraction();
    isDragging.value = false;
    dragMode.value = null;
  };
--- a/src/composables/useSolver.js
+++ b/src/composables/useSolver.js
@@ -9,8 +9,8 @@ export function useSolver() {
    const isPlaying = ref(false);
    const isProcessing = ref(false);
    const speedIndex = ref(0);
-    const speeds = [1000, 500, 250, 125];
-    const speedLabels = ['x1', 'x2', 'x3', 'x4'];
+    const speeds = [1000, 500, 250, 125, 62];
+    const speedLabels = ['x1', 'x2', 'x4', 'x8', 'x16'];
    const statusText = ref(t('guide.waiting'));
    
    let intervalId = null;
--- a/src/stores/puzzle.js
+++ b/src/stores/puzzle.js
@@ -75,6 +75,7 @@ export const usePuzzleStore = defineStore('puzzle', () => {
  
  // History for undo
  const history = ref([]);
+  const currentTransaction = ref(null);
  
  // Progress State
  const totalCellsToFill = computed(() => {
@@ -150,18 +151,39 @@ export const usePuzzleStore = defineStore('puzzle', () => {
    playerGrid.value = Array(size.value).fill().map(() => Array(size.value).fill(0));
    moves.value = 0;
    history.value = [];
+    currentTransaction.value = null;
  }
  
-  function pushHistory() {
-      const gridCopy = playerGrid.value.map(row => [...row]);
-      history.value.push(gridCopy);
-      if (history.value.length > 50) history.value.shift();
+  function startInteraction() {
+      currentTransaction.value = [];
+  }
+
+  function endInteraction() {
+      if (currentTransaction.value && currentTransaction.value.length > 0) {
+          history.value.push(currentTransaction.value);
+          if (history.value.length > 50) history.value.shift();
+          saveState();
+      }
+      currentTransaction.value = null;
  }

  function undo() {
      if (history.value.length === 0 || isGameWon.value) return;
-      const previousState = history.value.pop();
-      playerGrid.value = previousState;
+      
+      const transaction = history.value.pop();
+      
+      // Handle legacy history (full grid snapshot)
+      if (!Array.isArray(transaction) || (transaction.length > 0 && Array.isArray(transaction[0]))) {
+          playerGrid.value = transaction;
+      } else {
+          // Handle new history (list of changes)
+          // Revert changes in reverse order
+          for (let i = transaction.length - 1; i >= 0; i--) {
+              const { r, c, oldVal } = transaction[i];
+              playerGrid.value[r][c] = oldVal;
+          }
+      }
+      
      moves.value++; 
      saveState();
  }
@@ -169,8 +191,6 @@ export const usePuzzleStore = defineStore('puzzle', () => {
  function toggleCell(r, c, isRightClick = false) {
    if (isGameWon.value) return;
    
-    pushHistory();
-
    const currentState = playerGrid.value[r][c];
    let newState;
    
@@ -182,20 +202,48 @@ export const usePuzzleStore = defineStore('puzzle', () => {
      newState = currentState === 1 ? 0 : 1;
    }
    
-    playerGrid.value[r][c] = newState; // This triggers reactivity
+    if (currentState === newState) return;
+
+    // Apply change
+    playerGrid.value[r][c] = newState; 
+    
+    // Record history
+    const change = { r, c, oldVal: currentState, newVal: newState };
+    if (currentTransaction.value) {
+        currentTransaction.value.push(change);
+    } else {
+        // Atomic change if no interaction started
+        history.value.push([change]);
+        if (history.value.length > 50) history.value.shift();
+        saveState();
+    }
+
    moves.value++;
    checkWin();
-    saveState();
+    // saveState(); // Moved to endInteraction or atomic block
  }
  
  function setCell(r, c, state) {
     if (isGameWon.value) return;
-     if (playerGrid.value[r][c] !== state) {
-         pushHistory();
+     const currentState = playerGrid.value[r][c];
+     
+     if (currentState !== state) {
+         // Apply change
         playerGrid.value[r][c] = state;
+         
+         // Record history
+         const change = { r, c, oldVal: currentState, newVal: state };
+         if (currentTransaction.value) {
+             currentTransaction.value.push(change);
+         } else {
+             history.value.push([change]);
+             if (history.value.length > 50) history.value.shift();
+             saveState();
+         }
+         
         moves.value++;
         checkWin();
-         saveState();
+         // saveState(); // Moved to endInteraction or atomic block
     }
  }

@@ -343,7 +391,9 @@ export const usePuzzleStore = defineStore('puzzle', () => {
    hasUsedGuide,
    guideUsageCount,
    currentDensity,
-    markGuideUsed
+    markGuideUsed,
+    startInteraction,
+    endInteraction
  };

 });
Author	SHA1	Message	Date
Grzegorz Kucmierz	63dd833f2a	1.9.1	2026-02-11 05:49:48 +01:00
Grzegorz Kucmierz	fa8384c860	feat(layout): use native browser scroll for game board on desktop	2026-02-11 05:49:47 +01:00
Grzegorz Kucmierz	430f370196	1.9.0	2026-02-11 05:31:50 +01:00
Grzegorz Kucmierz	c8789741fc	feat(guide): update playback speed options (remove 3x, add 8x/16x)	2026-02-11 05:31:49 +01:00
Grzegorz Kucmierz	53ef63f25f	1.8.5	2026-02-11 05:24:12 +01:00
Grzegorz Kucmierz	9b869bdb5f	perf(puzzle): optimize undo logic and dragging performance	2026-02-11 05:22:32 +01:00
Grzegorz Kucmierz	764763016b	1.8.4	2026-02-11 05:00:18 +01:00
Grzegorz Kucmierz	5cfabf40e8	feat(i18n): add simulation translations for all languages	2026-02-11 05:00:16 +01:00
Grzegorz Kucmierz	460de9fac9	1.8.3	2026-02-11 04:50:21 +01:00
Grzegorz Kucmierz	a264ac75e3	perf(CustomGameModal): optimize difficulty map rendering with caching	2026-02-11 04:50:13 +01:00