Fix remaining Scheme bugs.

- Implement IEquatable.
- Fix RoundTimeSeconds not properly being parsed.
- Uniquely throw ArgumentOutOfRangeException even for rounding properties.
- Fix FallDamage not being stored properly.
- Add tests for rounding properties and local scheme test files.
- Implement equality operations for SchemeWeapon.

src/library/Syroot.Worms.Armageddon.ProjectX/Syroot.Worms.Armageddon.ProjectX.csproj

@@ -5,7 +5,7 @@
     <Description>.NET library for loading and modifying files of Worms Armageddon ProjectX.</Description>
     <PackageReleaseNotes>Fix saving files. Uniquely leave open Stream instances when saving into them.</PackageReleaseNotes>
     <PackageTags>$(PackageTags);project x;worms armageddon</PackageTags>
-    <Version>3.0.1</Version>
+    <Version>3.1.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Syroot.Worms.Armageddon\Syroot.Worms.Armageddon.csproj" />

src/library/Syroot.Worms.Armageddon/Scheme.cs

@@ -14,7 +14,7 @@ namespace Syroot.Worms.Armageddon
     /// RubberWorm settings encoded in those.
     /// Used by WA and WWP. S. https://worms2d.info/Game_scheme_file.
     /// </summary>
-    public class Scheme : ILoadableFile, ISaveableFile
+    public class Scheme : IEquatable<Scheme>, ILoadableFile, ISaveableFile
     {
         // ---- CONSTANTS ----------------------------------------------------------------------------------------------
 
@@ -28,7 +28,7 @@ namespace Syroot.Worms.Armageddon
 
         private static readonly byte[] _waterRiseRates;
 
-        private byte _fallDamage;
+        private int _fallDamage;
         private byte _waterRiseIndex;
         private byte _objectCount;
         private byte _mineDelay;
@@ -147,8 +147,8 @@ namespace Syroot.Worms.Armageddon
         /// values lie between 0-508, at a granularity of 4. Note that changing this value rounds it down to a valid
         /// granularity.
         /// </summary>
-        /// <remarks>Valid settings can be enumerated through <see cref="ValidFallDamages"/>.</remarks>
         /// <exception cref="ArgumentOutOfRangeException">The value is not between 0-508.</exception>
+        /// <remarks>Valid settings can be enumerated through <see cref="ValidFallDamages"/>.</remarks>
         public int FallDamage
         {
             get => _fallDamage;
@@ -156,7 +156,8 @@ namespace Syroot.Worms.Armageddon
             {
                 if (value < 0 || value > 508)
                     throw new ArgumentOutOfRangeException(nameof(value), "Fall damage must be between 0-508.");
-                _fallDamage = (byte)(value >> 2 << 2);
+
+                _fallDamage = value >> 2 << 2;
             }
         }
 
@@ -191,16 +192,20 @@ namespace Syroot.Worms.Armageddon
         /// Gets or sets the amount in pixels which the water will rise between turns after Sudden Death was triggered.
         /// Note that changing this value rounds it down to a valid setting.
         /// </summary>
+        /// <exception cref="ArgumentOutOfRangeException">The value is not between 0-253.</exception>
         /// <remarks>Valid settings can be enumerated through <see cref="ValidWateRiseRates"/>.</remarks>
         public byte WaterRiseRate
         {
             get => _waterRiseRates[_waterRiseIndex];
             set
             {
+                if (value > 253)
+                    throw new ArgumentOutOfRangeException(nameof(value), "Water rise rate must be between 0-253.");
+
                 int smallestDeviation = Int32.MaxValue;
                 for (int i = 0; i < _waterRiseRates.Length; i++)
                 {
-                    int deviation = Math.Abs(value - _waterRiseRates[i]);
+                    int deviation = value - _waterRiseRates[i];
                     if (deviation >= 0 && smallestDeviation > deviation)
                     {
                         smallestDeviation = deviation;
@@ -247,12 +252,16 @@ namespace Syroot.Worms.Armageddon
         /// Gets or sets the maximum number of objects (mines or oil drums) on the map. Note that changing this value
         /// rounds it down to a valid setting.
         /// </summary>
+        /// <exception cref="ArgumentOutOfRangeException">The value is not between 1-250.</exception>
         /// <remarks>Valid settings can be enumerated through <see cref="ValidObjectCounts"/>.</remarks>
         public byte ObjectCount
         {
             get => _objectCount;
             set
             {
+                if (value < 1 || value > 250)
+                    throw new ArgumentOutOfRangeException(nameof(value), "Object count must be between 1-250.");
+
                 if (value > 100)
                     _objectCount = (byte)(value - value % 10);
                 else if (value > 30)
@@ -651,10 +660,10 @@ namespace Syroot.Worms.Armageddon
 
         // ---- METHODS (PUBLIC) ---------------------------------------------------------------------------------------
 
-        /// <summary>
-        /// Loads the data from the given <see cref="Stream"/>.
-        /// </summary>
-        /// <param name="stream">The <see cref="Stream"/> to load the data from.</param>
+        /// <inheritdoc/>
+        public override bool Equals(object obj) => Equals(obj as Scheme);
+
+        /// <inheritdoc/>
         public void Load(Stream stream)
         {
             using BinaryStream reader = new BinaryStream(stream, encoding: Encoding.ASCII, leaveOpen: true);
@@ -714,20 +723,14 @@ namespace Syroot.Worms.Armageddon
             LoadRubberWormSettings();
         }
 
-        /// <summary>
-        /// Loads the data from the given file.
-        /// </summary>
-        /// <param name="fileName">The name of the file to load the data from.</param>
+        /// <inheritdoc/>
         public void Load(string fileName)
         {
             using FileStream stream = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.Read);
             Load(stream);
         }
 
-        /// <summary>
-        /// Saves the data into the given <paramref name="stream"/>.
-        /// </summary>
-        /// <param name="stream">The <see cref="Stream"/> to save the data to.</param>
+        /// <inheritdoc/>
         public void Save(Stream stream) => Save(stream, SchemeSaveFormat.ExtendedWithObjectCount);
 
         /// <summary>
@@ -790,10 +793,7 @@ namespace Syroot.Worms.Armageddon
                 writer.WriteStruct(weapon);
         }
 
-        /// <summary>
-        /// Saves the data in the given file.
-        /// </summary>
-        /// <param name="fileName">The name of the file to save the data in.</param>
+        /// <inheritdoc/>
         public void Save(string fileName) => Save(fileName, SchemeSaveFormat.ExtendedWithObjectCount);
 
         /// <summary>
@@ -809,6 +809,101 @@ namespace Syroot.Worms.Armageddon
 
         // ---- METHODS (PRIVATE) --------------------------------------------------------------------------------------
 
+        /// <inheritdoc/>
+        public bool Equals(Scheme other)
+            => other != null
+            && Version == other.Version
+            && HotSeatDelay == other.HotSeatDelay
+            && RetreatTime == other.RetreatTime
+            && RetreatTimeRope == other.RetreatTimeRope
+            && ShowRoundTime == other.ShowRoundTime
+            && AutomaticReplays == other.AutomaticReplays
+            && FallDamage == other.FallDamage
+            && ArtilleryMode == other.ArtilleryMode
+            && SchemeEditor == other.SchemeEditor
+            && StockpilingMode == other.StockpilingMode
+            && WormSelectMode == other.WormSelectMode
+            && SuddenDeathEvent == other.SuddenDeathEvent
+            && WaterRiseRate == other.WaterRiseRate
+            && WeaponCrateProbability == other.WeaponCrateProbability
+            && DonorCards == other.DonorCards
+            && HealthCrateProbability == other.HealthCrateProbability
+            && HealthCrateEnergy == other.HealthCrateEnergy
+            && UtilityCrateProbability == other.UtilityCrateProbability
+            && ObjectTypes == other.ObjectTypes
+            && ObjectCount == other.ObjectCount
+            && MineDelay == other.MineDelay
+            && MineDelayRandom == other.MineDelayRandom
+            && DudMines == other.DudMines
+            && ManualWormPlacement == other.ManualWormPlacement
+            && WormEnergy == other.WormEnergy
+            && TurnTime == other.TurnTime
+            && TurnTimeInfinite == other.TurnTimeInfinite
+            && RoundTimeMinutes == other.RoundTimeMinutes
+            && RoundTimeSeconds == other.RoundTimeSeconds
+            && NumberOfWins == other.NumberOfWins
+            && Blood == other.Blood
+            && AquaSheep == other.AquaSheep
+            && SheepHeaven == other.SheepHeaven
+            && GodWorms == other.GodWorms
+            && IndestructibleLand == other.IndestructibleLand
+            && UpgradedGrenade == other.UpgradedGrenade
+            && UpgradedShotgun == other.UpgradedShotgun
+            && UpgradedCluster == other.UpgradedCluster
+            && UpgradedLongbow == other.UpgradedLongbow
+            && EnableTeamWeapons == other.EnableTeamWeapons
+            && EnableSuperWeapons == other.EnableSuperWeapons
+            && Weapons.SequenceEqual(other.Weapons);
+
+        /// <inheritdoc/>
+        public override int GetHashCode()
+        {
+            HashCode hash = new HashCode();
+            hash.Add(Version);
+            hash.Add(HotSeatDelay);
+            hash.Add(RetreatTime);
+            hash.Add(RetreatTimeRope);
+            hash.Add(ShowRoundTime);
+            hash.Add(AutomaticReplays);
+            hash.Add(FallDamage);
+            hash.Add(ArtilleryMode);
+            hash.Add(SchemeEditor);
+            hash.Add(StockpilingMode);
+            hash.Add(WormSelectMode);
+            hash.Add(SuddenDeathEvent);
+            hash.Add(WaterRiseRate);
+            hash.Add(WeaponCrateProbability);
+            hash.Add(DonorCards);
+            hash.Add(HealthCrateProbability);
+            hash.Add(HealthCrateEnergy);
+            hash.Add(UtilityCrateProbability);
+            hash.Add(ObjectTypes);
+            hash.Add(ObjectCount);
+            hash.Add(MineDelay);
+            hash.Add(MineDelayRandom);
+            hash.Add(DudMines);
+            hash.Add(ManualWormPlacement);
+            hash.Add(WormEnergy);
+            hash.Add(TurnTime);
+            hash.Add(TurnTimeInfinite);
+            hash.Add(RoundTimeMinutes);
+            hash.Add(RoundTimeSeconds);
+            hash.Add(NumberOfWins);
+            hash.Add(Blood);
+            hash.Add(AquaSheep);
+            hash.Add(SheepHeaven);
+            hash.Add(GodWorms);
+            hash.Add(IndestructibleLand);
+            hash.Add(UpgradedGrenade);
+            hash.Add(UpgradedShotgun);
+            hash.Add(UpgradedCluster);
+            hash.Add(UpgradedLongbow);
+            hash.Add(EnableTeamWeapons);
+            hash.Add(EnableSuperWeapons);
+            hash.Add(Weapons);
+            return hash.ToHashCode();
+        }
+
         private int GetWeaponCount() => Version == SchemeVersion.Extended ? 64 : 45;
 
         private void LoadObjectTypesAndCount(BinaryStream reader)
@@ -851,10 +946,10 @@ namespace Syroot.Worms.Armageddon
         private void LoadRoundTimeConfig(BinaryStream reader)
         {
             byte raw = reader.Read1Byte();
-            if (raw > 0x7F)
+            if (raw > 127)
             {
                 RoundTimeMinutes = 0;
-                RoundTimeSeconds = (byte)(raw - 0x7F);
+                RoundTimeSeconds = (byte)(256 - raw);
             }
             else
             {
@@ -941,7 +1036,7 @@ namespace Syroot.Worms.Armageddon
         private void SaveTurnTimeConfig(BinaryStream writer) => writer.Write(TurnTimeInfinite ? (byte)0xFF : TurnTime);
 
         private void SaveRoundTimeConfig(BinaryStream writer) => writer.Write(RoundTimeSeconds > 0
-            ? (byte)(0xFF - (RoundTimeSeconds - 1))
+            ? (byte)(256 - RoundTimeSeconds)
             : RoundTimeMinutes);
 
         private void SaveRubberWormSettings()

src/library/Syroot.Worms.Armageddon/SchemeWeapon.cs

@@ -1,25 +1,47 @@
-using System.Diagnostics;
-using System.Runtime.InteropServices;
-
-namespace Syroot.Worms.Armageddon
-{
-    /// <summary>
-    /// Represents the configuration of a weapon. 
-    /// </summary>
-    [DebuggerDisplay("Ammo={Ammunition} Power={Power} Delay={Delay} Prob={Probability}")]
-    [StructLayout(LayoutKind.Sequential)]
-    public struct SchemeWeapon
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace Syroot.Worms.Armageddon
+{
+    /// <summary>
+    /// Represents the configuration of a weapon. 
+    /// </summary>
+    [DebuggerDisplay("Ammo={Ammunition} Power={Power} Delay={Delay} Prob={Probability}")]
+    [StructLayout(LayoutKind.Sequential)]
+    public struct SchemeWeapon : IEquatable<SchemeWeapon>
     {
         // ---- FIELDS -------------------------------------------------------------------------------------------------
-
-        /// <summary>Amount with which a team is equipped at game start. 10 and negative values represent infinity.</summary>
-        public sbyte Ammunition;
-        /// <summary>Power of this weapon.</summary>
-        public byte Power;
+
+        /// <summary>Amount with which a team is equipped at game start. 10 and negative values represent infinity.</summary>
+        public sbyte Ammunition;
+        /// <summary>Power of this weapon.</summary>
+        public byte Power;
         /// <summary>Number of turns required to be taken by each team before this weapon becomes available. Negative
-        /// values represent infinity.</summary>
-        public sbyte Delay;
-        /// <summary>Percentual chance of this weapon to appear in crates. Has no effect for super weapons.</summary>
-        public sbyte Probability;
-    }
-}
+        /// values represent infinity.</summary>
+        public sbyte Delay;
+        /// <summary>Percentual chance of this weapon to appear in crates. Has no effect for super weapons.</summary>
+        public sbyte Probability;
+
+        // ---- OPERATORS ----------------------------------------------------------------------------------------------
+
+        public static bool operator ==(SchemeWeapon left, SchemeWeapon right) => left.Equals(right);
+
+        public static bool operator !=(SchemeWeapon left, SchemeWeapon right) => !(left == right);
+
+        // ---- METHODS (PUBLIC) ---------------------------------------------------------------------------------------
+
+        /// <inheritdoc/>
+        public override bool Equals(object obj) => obj is SchemeWeapon weapon && Equals(weapon);
+
+        /// <inheritdoc/>
+        public bool Equals(SchemeWeapon other)
+            => Ammunition == other.Ammunition
+            && Power == other.Power
+            && Delay == other.Delay
+            && Probability == other.Probability;
+
+        /// <inheritdoc/>
+        public override int GetHashCode() => HashCode.Combine(Ammunition, Power, Delay, Probability);
+    }
+}

src/library/Syroot.Worms.Armageddon/Syroot.Worms.Armageddon.csproj

@@ -5,7 +5,7 @@
     <Description>.NET library for loading and modifying files of Team17's Worms Armageddon.</Description>
     <PackageReleaseNotes>Simplify scheme fall damage and water rise usage.</PackageReleaseNotes>
     <PackageTags>$(PackageTags);worms armageddon</PackageTags>
-    <Version>3.1.0</Version>
+    <Version>3.1.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Syroot.Worms\Syroot.Worms.csproj" />

src/library/Syroot.Worms.Mgame/Syroot.Worms.Mgame.csproj

@@ -5,7 +5,7 @@
     <Description>.NET library for loading and modifying files of Mgame Worms clients.</Description>
     <PackageReleaseNotes>Fix saving files. Uniquely leave open Stream instances when saving into them.</PackageReleaseNotes>
     <PackageTags>$(PackageTags);online worms;worms world party aqua</PackageTags>
-    <Version>3.0.1</Version>
+    <Version>3.1.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Syroot.Worms\Syroot.Worms.csproj" />

src/library/Syroot.Worms.WorldParty/Syroot.Worms.WorldParty.csproj

@@ -5,7 +5,7 @@
     <Description>.NET library for loading and modifying files of Team17's Worms World Party.</Description>
     <PackageReleaseNotes>Fix saving files. Uniquely leave open Stream instances when saving into them.</PackageReleaseNotes>
     <PackageTags>$(PackageTags);worms world party</PackageTags>
-    <Version>3.0.1</Version>
+    <Version>3.1.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Syroot.Worms\Syroot.Worms.csproj" />

src/library/Syroot.Worms.Worms2/Syroot.Worms.Worms2.csproj

@@ -5,7 +5,7 @@
     <Description>.NET library for loading and modifying files of Team17's Worms 2.</Description>
     <PackageReleaseNotes>Fix saving files. Uniquely leave open Stream instances when saving into them.</PackageReleaseNotes>
     <PackageTags>$(PackageTags);worms 2</PackageTags>
-    <Version>3.0.1</Version>
+    <Version>3.1.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="..\Syroot.Worms\Syroot.Worms.csproj" />

src/library/Syroot.Worms/Syroot.Worms.csproj

@@ -5,7 +5,7 @@
     <AssemblyName>Syroot.Worms</AssemblyName>
     <Description>.NET library for loading and modifying files of Team17 Worms games.</Description>
     <PackageReleaseNotes>Fix saving files. Uniquely leave open Stream instances when saving into them.</PackageReleaseNotes>
-    <Version>3.0.1</Version>
+    <Version>3.1.1</Version>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Syroot.BinaryData.Serialization" Version="[5.2.0, 6)" />
@@ -13,4 +13,7 @@
     <PackageReference Include="System.Drawing.Common" Version="[4.7.0, 5)" />
     <PackageReference Include="System.Text.Encoding.CodePages" Version="[4.7.1, 5)" />
   </ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)'=='netstandard2.0'">
+    <PackageReference Include="Microsoft.Bcl.HashCode" Version="1.1.0" />
+  </ItemGroup>
 </Project>

src/test/Syroot.Worms.Armageddon.ProjectX.Test/LibraryTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.Armageddon.ProjectX
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadLibraries()
-        {
-            FileTester.LoadFiles<Library>(Game.Armageddon, "*.pxl");
-        }
+        public void LoadLibraries() => FileTester.Run<Library>(Game.Armageddon, "*.pxl");
     }
 }

src/test/Syroot.Worms.Armageddon.ProjectX.Test/SchemeTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.Armageddon.ProjectX
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadSchemes()
-        {
-            FileTester.LoadFiles<Scheme>(Game.Armageddon, "*.pxs");
-        }
+        public void LoadSchemes() => FileTester.Run<Scheme>(Game.Armageddon, "*.pxs");
     }
 }

src/test/Syroot.Worms.Armageddon.Test/GeneratedMapTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.Armageddon
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadGeneratedMaps()
-        {
-            FileTester.LoadFiles<GeneratedMap>(Game.Armageddon | Game.WorldParty, "*.lev");
-        }
+        public void LoadGeneratedMaps() => FileTester.Run<GeneratedMap>(Game.Armageddon | Game.WorldParty, "*.lev");
     }
 }

src/test/Syroot.Worms.Armageddon.Test/LandDataTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.Armageddon
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadLandData()
-        {
-            FileTester.LoadFiles<LandData>(Game.Armageddon, "land.dat");
-        }
+        public void LoadLandData() => FileTester.Run<LandData>(Game.Armageddon, "land.dat");
     }
 }

src/test/Syroot.Worms.Armageddon.Test/SchemeTests.cs

@@ -1,24 +1,79 @@
-using Microsoft.VisualStudio.TestTools.UnitTesting;
-using Syroot.Worms.Armageddon;
-using Syroot.Worms.Test.Core;
-
-namespace Syroot.Worms.Test.Armageddon
-{
-    /// <summary>
-    /// Represents a collection of tests for the <see cref="Scheme"/> class.
-    /// </summary>
-    [TestClass]
-    public class SchemeTests
-    {
-        // ---- METHODS (PUBLIC) ---------------------------------------------------------------------------------------
-
-        /// <summary>
-        /// Loads all files found in any game directories.
-        /// </summary>
-        [TestMethod]
-        public void LoadSchemes()
-        {
-            FileTester.LoadFiles<Scheme>(Game.Armageddon | Game.WorldParty, "*.wsc");
-        }
-    }
-}
+using System;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Syroot.Worms.Armageddon;
+using Syroot.Worms.Test.Core;
+
+namespace Syroot.Worms.Test.Armageddon
+{
+    /// <summary>
+    /// Represents a collection of tests for the <see cref="Scheme"/> class.
+    /// </summary>
+    [TestClass]
+    public class SchemeTests
+    {
+        // ---- METHODS (PUBLIC) ---------------------------------------------------------------------------------------
+
+        /// <summary>
+        /// Loads all files found in the test directory.
+        /// </summary>
+        [TestMethod]
+        public void TestFiles() => FileTester.Run<Scheme>(Game.Test, "*.wsc");
+
+        /// <summary>
+        /// Tests rounding down to the nearest valid fall damage value.
+        /// </summary>
+        [TestMethod]
+        public void RoundFallDamage()
+        {
+            Scheme scheme = new Scheme();
+            Assert.ThrowsException<ArgumentOutOfRangeException>(() => scheme.FallDamage = -1);
+            scheme.FallDamage = 0; Assert.AreEqual(0, scheme.FallDamage);
+            scheme.FallDamage = 1; Assert.AreEqual(0, scheme.FallDamage);
+            scheme.FallDamage = 3; Assert.AreEqual(0, scheme.FallDamage);
+            scheme.FallDamage = 4; Assert.AreEqual(4, scheme.FallDamage);
+            scheme.FallDamage = 507; Assert.AreEqual(504, scheme.FallDamage);
+            scheme.FallDamage = 508; Assert.AreEqual(508, scheme.FallDamage);
+            Assert.ThrowsException<ArgumentOutOfRangeException>(() => scheme.FallDamage = 509);
+        }
+
+        /// <summary>
+        /// Tests rounding down to the nearest valid water rise rate value.
+        /// </summary>
+        [TestMethod]
+        public void RoundWaterRiseRate()
+        {
+            Scheme scheme = new Scheme();
+            scheme.WaterRiseRate = 0; Assert.AreEqual(0, scheme.WaterRiseRate);
+            scheme.WaterRiseRate = 1; Assert.AreEqual(0, scheme.WaterRiseRate);
+            scheme.WaterRiseRate = 4; Assert.AreEqual(0, scheme.WaterRiseRate);
+            scheme.WaterRiseRate = 5; Assert.AreEqual(5, scheme.WaterRiseRate);
+            scheme.WaterRiseRate = 252; Assert.AreEqual(245, scheme.WaterRiseRate);
+            scheme.WaterRiseRate = 253; Assert.AreEqual(253, scheme.WaterRiseRate);
+            Assert.ThrowsException<ArgumentOutOfRangeException>(() => scheme.WaterRiseRate = 254);
+        }
+
+        /// <summary>
+        /// Tests rounding down to the nearest valid fall damage value.
+        /// </summary>
+        [TestMethod]
+        public void RoundObjectCount()
+        {
+            Scheme scheme = new Scheme();
+            Assert.ThrowsException<ArgumentOutOfRangeException>(() => scheme.ObjectCount = 0);
+            scheme.ObjectCount = 1; Assert.AreEqual(1, scheme.ObjectCount);
+            scheme.ObjectCount = 2; Assert.AreEqual(2, scheme.ObjectCount);
+            scheme.ObjectCount = 30; Assert.AreEqual(30, scheme.ObjectCount);
+            scheme.ObjectCount = 31; Assert.AreEqual(30, scheme.ObjectCount);
+            scheme.ObjectCount = 34; Assert.AreEqual(30, scheme.ObjectCount);
+            scheme.ObjectCount = 35; Assert.AreEqual(35, scheme.ObjectCount);
+            scheme.ObjectCount = 99; Assert.AreEqual(95, scheme.ObjectCount);
+            scheme.ObjectCount = 100; Assert.AreEqual(100, scheme.ObjectCount);
+            scheme.ObjectCount = 101; Assert.AreEqual(100, scheme.ObjectCount);
+            scheme.ObjectCount = 109; Assert.AreEqual(100, scheme.ObjectCount);
+            scheme.ObjectCount = 110; Assert.AreEqual(110, scheme.ObjectCount);
+            scheme.ObjectCount = 249; Assert.AreEqual(240, scheme.ObjectCount);
+            scheme.ObjectCount = 250; Assert.AreEqual(250, scheme.ObjectCount);
+            Assert.ThrowsException<ArgumentOutOfRangeException>(() => scheme.ObjectCount = 251);
+        }
+    }
+}

src/test/Syroot.Worms.Armageddon.Test/Syroot.Worms.Armageddon.Test.csproj

@@ -1,13 +1,18 @@
-<Project Sdk="Microsoft.NET.Sdk">
-  <PropertyGroup>
-    <TargetFramework>netcoreapp3</TargetFramework>
-    <IsPackable>false</IsPackable>
-  </PropertyGroup>
-  <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
-    <PackageReference Include="MSTest.TestAdapter" Version="2.1.2" />
-    <PackageReference Include="MSTest.TestFramework" Version="2.1.2" />
-    <ProjectReference Include="..\..\library\Syroot.Worms.Armageddon\Syroot.Worms.Armageddon.csproj" />
-    <ProjectReference Include="..\Syroot.Worms.Test\Syroot.Worms.Test.csproj" />
-  </ItemGroup>
-</Project>
+<Project Sdk="Microsoft.NET.Sdk">
+  <PropertyGroup>
+    <TargetFramework>netcoreapp3</TargetFramework>
+    <IsPackable>false</IsPackable>
+  </PropertyGroup>
+  <ItemGroup>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.6.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="2.1.2" />
+    <PackageReference Include="MSTest.TestFramework" Version="2.1.2" />
+    <ProjectReference Include="..\..\library\Syroot.Worms.Armageddon\Syroot.Worms.Armageddon.csproj" />
+    <ProjectReference Include="..\Syroot.Worms.Test\Syroot.Worms.Test.csproj" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Update="Files\**\*.*">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+  </ItemGroup>
+</Project>

src/test/Syroot.Worms.Armageddon.Test/TeamContainerTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.Armageddon
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadTeamContainers()
-        {
-            FileTester.LoadFiles<TeamContainer>(Game.Armageddon, "*.wgt");
-        }
+        public void LoadTeamContainers() => FileTester.Run<TeamContainer>(Game.Armageddon, "*.wgt");
     }
 }

src/test/Syroot.Worms.Test/ArchiveTests.cs

@@ -15,9 +15,6 @@ namespace Syroot.Worms.Test
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadArchives()
-        {
-            FileTester.LoadFiles<Archive>(Game.Team17, "*.dir");
-        }
+        public void LoadArchives() => FileTester.Run<Archive>(Game.Team17, "*.dir");
     }
 }

src/test/Syroot.Worms.Test/Core/FileTester.cs

@@ -1,87 +1,105 @@
-using System;
-using System.Collections.Generic;
-using System.Diagnostics;
-using System.IO;
-using System.Linq;
-using Syroot.Worms.Core.IO;
-
-namespace Syroot.Worms.Test.Core
-{
-    /// <summary>
-    /// Represents methods helping in executing file-based tests.
-    /// </summary>
-    public static class FileTester
-    {
-        // ---- CONSTANTS ----------------------------------------------------------------------------------------------
-
-        private static readonly Dictionary<Game, string> _gamePaths = new Dictionary<Game, string>
-        {
-            [Game.Worms2] = @"C:\Games\Worms2",
-            [Game.Armageddon] = @"C:\Games\Worms Armageddon 3.6.31.0",
-            [Game.WorldParty] = @"C:\Games\Worms World Party",
-            [Game.OnlineWorms] = @"C:\Games\Online Worms",
-            [Game.WorldPartyAqua] = @"C:\Games\WWP Aqua"
-        };
-
-        // ---- METHODS (PUBLIC) ---------------------------------------------------------------------------------------
-
-        /// <summary>
-        /// Loads the files found with the given <paramref name="wildcard"/>. Excludes file names specified in the
-        /// optional array <paramref name="excludedFiles"/>.
-        /// </summary>
-        /// <typeparam name="T">The type of the files to load.</typeparam>
-        /// <param name="games">The games to test.</param>
-        /// <param name="wildcard">The wildcard to match.</param>
-        /// <param name="excludedFiles">Optionally, the files to exclude.</param>
-        public static void LoadFiles<T>(Game games, string wildcard, string[] excludedFiles = null)
-            where T : ILoadableFile, new()
-        {
-            foreach (string fileName in FindFiles(games, wildcard))
-            {
-                if (excludedFiles?.Contains(Path.GetFileName(fileName), StringComparer.OrdinalIgnoreCase) == true)
-                {
-                    Debug.WriteLine($"Skipping {fileName}");
-                    continue;
-                }
-                Debug.Write($"Loading {fileName}...");
-                T instance = new T();
-                instance.Load(fileName);
-                Debug.WriteLine($" ok");
-            }
-        }
-
-        // ---- METHODS (PRIVATE) --------------------------------------------------------------------------------------
-
-        private static List<string> FindFiles(Game games, string wildcard)
-        {
-            List<string> files = new List<string>();
-            foreach (string path in GetGamePaths(games))
-            {
-                if (Directory.Exists(path))
-                    files.AddRange(Directory.GetFiles(path, wildcard, SearchOption.AllDirectories));
-            }
-            if (files.Count == 0)
-                throw new InvalidOperationException("No files found to test.");
-            return files;
-        }
-
-        private static IEnumerable<string> GetGamePaths(Game game)
-        {
-            return _gamePaths.Where(x => game.HasFlag(x.Key)).Select(x => x.Value);
-        }
-    }
-
-    [Flags]
-    public enum Game
-    {
-        Worms2 = 1 << 0,
-        Armageddon = 1 << 1,
-        WorldParty = 1 << 2,
-        OnlineWorms = 1 << 3,
-        WorldPartyAqua = 1 << 4,
-
-        Team17 = Worms2 | Armageddon | WorldParty,
-        Mgame = OnlineWorms | WorldPartyAqua,
-        All = -1
-    }
-}
+using System;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using Microsoft.VisualStudio.TestTools.UnitTesting;
+using Syroot.Worms.Core.IO;
+
+namespace Syroot.Worms.Test.Core
+{
+    /// <summary>
+    /// Represents methods helping in executing file-based tests.
+    /// </summary>
+    public static class FileTester
+    {
+        // ---- CONSTANTS ----------------------------------------------------------------------------------------------
+
+        private static readonly Dictionary<Game, string> _gamePaths = new Dictionary<Game, string>
+        {
+            [Game.Worms2] = @"C:\Games\Worms2",
+            [Game.Armageddon] = @"C:\Games\Worms Armageddon 3.6.31.0",
+            [Game.WorldParty] = @"C:\Games\Worms World Party",
+            [Game.OnlineWorms] = @"C:\Games\Online Worms",
+            [Game.WorldPartyAqua] = @"C:\Games\WWP Aqua",
+            [Game.Test] = "Files"
+        };
+
+        // ---- METHODS (PUBLIC) ---------------------------------------------------------------------------------------
+
+        /// <summary>
+        /// Loads, saves, reloads, and compares the files found with the given <paramref name="wildcard"/>, as long as
+        /// each operation is supported. Excludes file names specified in the optional array
+        /// <paramref name="excludedFiles"/>.
+        /// </summary>
+        /// <typeparam name="T">The type of the files to load.</typeparam>
+        /// <param name="games">The games to test.</param>
+        /// <param name="wildcard">The wildcard to match.</param>
+        /// <param name="excludedFiles">Optionally, the files to exclude.</param>
+        public static void Run<T>(Game games, string wildcard, string[] excludedFiles = null)
+            where T : ILoadableFile, new()
+        {
+            foreach (string fileName in FindFiles(games, wildcard))
+            {
+                if (excludedFiles?.Contains(Path.GetFileName(fileName), StringComparer.OrdinalIgnoreCase) == true)
+                {
+                    Debug.WriteLine($"Skipping {fileName}");
+                    continue;
+                }
+
+                Debug.Write($"\"{fileName}\" load");
+                T instance = new T();
+                instance.Load(fileName);
+
+                if (instance is ISaveableFile saveable)
+                {
+                    Debug.Write($" save");
+                    using MemoryStream stream = new MemoryStream();
+                    saveable.Save(stream);
+
+                    Debug.Write($" reload");
+                    stream.Position = 0;
+                    T newInstance = new T();
+                    newInstance.Load(stream);
+
+                    Debug.Write($" compare");
+                    Assert.IsTrue(newInstance.Equals(instance));
+                }
+                Debug.WriteLine($" OK");
+            }
+        }
+
+        // ---- METHODS (PRIVATE) --------------------------------------------------------------------------------------
+
+        private static List<string> FindFiles(Game games, string wildcard)
+        {
+            List<string> files = new List<string>();
+            foreach (string path in GetGamePaths(games))
+                if (Directory.Exists(path))
+                    files.AddRange(Directory.GetFiles(path, wildcard, SearchOption.AllDirectories));
+            if (files.Count == 0)
+                throw new InvalidOperationException("No files found to test.");
+            return files;
+        }
+
+        private static IEnumerable<string> GetGamePaths(Game game)
+        {
+            return _gamePaths.Where(x => game.HasFlag(x.Key)).Select(x => x.Value);
+        }
+    }
+
+    [Flags]
+    public enum Game
+    {
+        Worms2 = 1 << 0,
+        Armageddon = 1 << 1,
+        WorldParty = 1 << 2,
+        OnlineWorms = 1 << 3,
+        WorldPartyAqua = 1 << 4,
+        Test = 1 << 32,
+
+        Team17 = Worms2 | Armageddon | WorldParty,
+        Mgame = OnlineWorms | WorldPartyAqua,
+        All = -1
+    }
+}

src/test/Syroot.Worms.Test/ImageTests.cs

@@ -15,9 +15,6 @@ namespace Syroot.Worms.Test
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadImages()
-        {
-            FileTester.LoadFiles<Img>(Game.All, "*.img");
-        }
+        public void LoadImages() => FileTester.Run<Img>(Game.All, "*.img");
     }
 }

src/test/Syroot.Worms.Test/PaletteTests.cs

@@ -17,7 +17,7 @@ namespace Syroot.Worms.Test
         [TestMethod]
         public void LoadPalettes()
         {
-            FileTester.LoadFiles<RiffPalette>(Game.Team17, "*.pal", new string[]
+            FileTester.Run<RiffPalette>(Game.Team17, "*.pal", new string[]
             {
                 "wwp.pal", // Contains 4 bytes of trash after the data chunk.
                 "wwpmaped.pal" // Contains 4 bytes of trash after the data chunk.

src/test/Syroot.Worms.WorldParty.Test/LandDataTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.WorldParty
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadLandData()
-        {
-            FileTester.LoadFiles<LandData>(Game.WorldParty, "land.dat");
-        }
+        public void LoadLandData() => FileTester.Run<LandData>(Game.WorldParty, "land.dat");
     }
 }

src/test/Syroot.Worms.WorldParty.Test/TeamContainerTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.WorldParty
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadTeamContainers()
-        {
-            FileTester.LoadFiles<TeamContainer>(Game.WorldParty, "*.wwp");
-        }
+        public void LoadTeamContainers() => FileTester.Run<TeamContainer>(Game.WorldParty, "*.wwp");
     }
 }

src/test/Syroot.Worms.Worms2.Test/LandDataTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.Worms2
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadLandData()
-        {
-            FileTester.LoadFiles<LandData>(Game.Worms2, "land.dat");
-        }
+        public void LoadLandData() => FileTester.Run<LandData>(Game.Worms2, "land.dat");
     }
 }

src/test/Syroot.Worms.Worms2.Test/SchemeOptionsTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.Worms2
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadSchemeOptions()
-        {
-            FileTester.LoadFiles<SchemeOptions>(Game.Worms2, "*.opt");
-        }
+        public void LoadSchemeOptions() => FileTester.Run<SchemeOptions>(Game.Worms2, "*.opt");
     }
 }

src/test/Syroot.Worms.Worms2.Test/SchemeWeaponsTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.Worms2
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadSchemeWeapons()
-        {
-            FileTester.LoadFiles<SchemeWeapons>(Game.Worms2, "*.wep");
-        }
+        public void LoadSchemeWeapons() => FileTester.Run<SchemeWeapons>(Game.Worms2, "*.wep");
     }
 }

src/test/Syroot.Worms.Worms2.Test/TeamContainerTests.cs

@@ -16,9 +16,6 @@ namespace Syroot.Worms.Test.Worms2
         /// Loads all files found in any game directories.
         /// </summary>
         [TestMethod]
-        public void LoadTeamContainers()
-        {
-            FileTester.LoadFiles<TeamContainer>(Game.Worms2, "*.st1");
-        }
+        public void LoadTeamContainers() => FileTester.Run<TeamContainer>(Game.Worms2, "*.st1");
     }
 }

src/tool/Syroot.Worms.Scratchpad/Program.cs

@@ -1,8 +1,5 @@
-using System;
-using System.Collections.Generic;
 using System.Drawing.Imaging;
 using System.IO;
-using Syroot.Worms.Armageddon;
 using Syroot.Worms.Mgame;
 
 namespace Syroot.Worms.Scratchpad
@@ -11,31 +8,7 @@ namespace Syroot.Worms.Scratchpad
     {
         // ---- METHODS (PRIVATE) --------------------------------------------------------------------------------------
 
-        private static void Main()
-        {
-            IEnumerable<string> fileNames = Directory.EnumerateFiles(
-                @"C:\Games\Worms Armageddon 3.7.2.1\User\Schemes", "*.wsc", SearchOption.AllDirectories);
-
-            foreach (string fileName in fileNames)
-            {
-                string tempFile = Path.GetTempFileName();
-                using (Stream tempStream = new FileStream(tempFile, FileMode.Open, FileAccess.ReadWrite, FileShare.None))
-                {
-                    // Load the scheme and save it to temp file.
-                    Scheme origScheme = new Scheme(fileName);
-                    tempStream.Position = 0;
-                    origScheme.Save(tempStream);
-
-                    // Load the temp file.
-                    tempStream.Position = 0;
-                    Scheme newScheme = new Scheme(tempStream);
-
-                    if (origScheme.ObjectCount != newScheme.ObjectCount || origScheme.ObjectTypes != newScheme.ObjectTypes)
-                        throw new InvalidOperationException("mismatch");
-                }
-                File.Delete(tempFile);
-            }
-        }
+        private static void Main() { }
 
         private static void ConvertIgdImages()
         {