Begin work on outlining dynamic side

PkmnLib.Dynamic/Events/EventBatchId.cs

@@ -0,0 +1,17 @@
+namespace PkmnLib.Dynamic.Events;
+
+/// <summary>
+/// Allows for the batching of multiple events that should be shown at the same time.
+/// </summary>
+/// <remarks>
+/// This is useful for when we send multiple events to the client in sequence, but we want to show them in one go.
+/// For example, when a Pokemon gets hurt by poison, we want to show the purple poison animation and the damage at the
+/// same time. This is done by batching the events together.
+/// </remarks>
+public record struct EventBatchId()
+{
+    /// <summary>
+    /// The unique identifier for this batch of events.
+    /// </summary>
+    public Guid Id { get; init; } = Guid.NewGuid();
+}

PkmnLib.Dynamic/Events/EventData.cs

@@ -0,0 +1,11 @@
+namespace PkmnLib.Dynamic.Events;
+
+/// <summary>
+/// An event is something that happens during a battle. This can be used by front-end code to
+/// display information about the battle to the user. This is the only way for the front-end to
+/// know what is happening in the battle.
+/// </summary>
+public interface IEventData
+{
+    
+}

PkmnLib.Dynamic/Events/EventHook.cs

@@ -0,0 +1,21 @@
+namespace PkmnLib.Dynamic.Events;
+
+/// <summary>
+/// The event hook of a battle. This is used to hook into the battle and get notified when something
+/// happens that a front-end might want to know about.
+/// </summary>
+public class EventHook
+{
+    /// <summary>
+    /// The event handler that is called when the event is triggered.
+    /// </summary>
+    public event EventHandler<IEventData>? Handler;
+    
+    /// <summary>
+    /// Triggers the event, calling the handler with the given data.
+    /// </summary>
+    public void Invoke(IEventData data)
+    {
+        Handler?.Invoke(this, data);
+    }
+}

PkmnLib.Dynamic/GlobalUsings.cs

@@ -0,0 +1,6 @@
+global using LevelInt = byte;
+
+public class Const
+{
+    public const int MovesCount = 4;
+}

PkmnLib.Dynamic/Libraries/BattleStatCalculator.cs

@@ -0,0 +1,30 @@
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Static;
+
+namespace PkmnLib.Dynamic.Libraries;
+
+/// <summary>
+/// A battle stat calculator is used to calculate stats for a Pokemon.
+/// </summary>
+public interface IBattleStatCalculator
+{
+    /// <summary>
+    /// Calculate all the flat stats of a Pokemon, disregarding stat boosts.
+    /// </summary>
+    void CalculateFlatStats(IPokemon pokemon, StatisticSet<uint> stats);
+    
+    /// <summary>
+    /// Calculate a single flat stat of a Pokemon, disregarding stat boosts.
+    /// </summary>
+    uint CalculateFlatStat(IPokemon pokemon, Statistic stat);
+    
+    /// <summary>
+    /// Calculate all the boosted stats of a Pokemon, including stat boosts.
+    /// </summary>
+    void CalculateBoostedStats(IPokemon pokemon, StatisticSet<uint> stats);
+    
+    /// <summary>
+    /// Calculate a single boosted stat of a Pokemon, including stat boosts.
+    /// </summary>
+    uint CalculateBoostedStat(IPokemon pokemon, Statistic stat);
+}

PkmnLib.Dynamic/Libraries/DamageCalculator.cs

@@ -0,0 +1,24 @@
+using PkmnLib.Dynamic.Models;
+
+namespace PkmnLib.Dynamic.Libraries;
+
+/// <summary>
+/// A damage library holds the functions related to the calculation of damage.
+/// </summary>
+public interface IDamageCalculator
+{
+    /// <summary>
+    /// Calculate the damage for a given hit on a Pokemon.
+    /// </summary>
+    uint GetDamage(IExecutingMove executingMove, IPokemon target, byte hitNumber, HitData hitData);
+
+    /// <summary>
+    /// Calculate the base power for a given hit on a Pokemon.
+    /// </summary>
+    byte GetBasePower(IExecutingMove executingMove, IPokemon target, byte hitNumber, HitData hitData);
+
+    /// <summary>
+    /// Returns whether a specified hit should be critical or not.
+    /// </summary>
+    bool IsCritical(IBattle battle, IExecutingMove executingMove, IPokemon target, byte hitNumber);
+}

PkmnLib.Dynamic/Libraries/DynamicLibrary.cs

@@ -0,0 +1,55 @@
+using PkmnLib.Static.Libraries;
+
+namespace PkmnLib.Dynamic.Libraries;
+
+/// <summary>
+/// The dynamic library stores a static data library, as well as holding different libraries and
+/// calculators that might be customized between different generations and implementations.
+/// </summary>
+public interface IDynamicLibrary
+{
+    /// <summary>
+    /// The static data is the immutable storage data for this library.
+    /// </summary>
+    IStaticLibrary StaticLibrary { get; }
+
+    /// <summary>
+    /// The stat calculator deals with the calculation of flat and boosted stats, based on the
+    /// Pokémon's attributes.
+    /// </summary>
+    IBattleStatCalculator StatCalculator { get; }
+
+    /// <summary>
+    /// The damage calculator deals with the calculation of things relating to damage.
+    /// </summary>
+    IDamageCalculator DamageCalculator { get; }
+
+    /// <summary>
+    /// The Misc Library holds minor functions that do not fall in any of the other libraries and
+    /// calculators.
+    /// </summary>
+    IMiscLibrary MiscLibrary { get; }
+}
+
+public class DynamicLibraryImpl : IDynamicLibrary
+{
+    public DynamicLibraryImpl(IStaticLibrary staticLibrary, IBattleStatCalculator statCalculator,
+        IDamageCalculator damageCalculator, IMiscLibrary miscLibrary)
+    {
+        StaticLibrary = staticLibrary;
+        StatCalculator = statCalculator;
+        DamageCalculator = damageCalculator;
+        MiscLibrary = miscLibrary;
+    }
+
+    public IStaticLibrary StaticLibrary { get; }
+
+    /// <inheritdoc />
+    public IBattleStatCalculator StatCalculator { get; }
+
+    /// <inheritdoc />
+    public IDamageCalculator DamageCalculator { get; }
+
+    /// <inheritdoc />
+    public IMiscLibrary MiscLibrary { get; }
+}

PkmnLib.Dynamic/Libraries/MiscLibrary.cs

@@ -0,0 +1,19 @@
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Dynamic.Models.Choices;
+using PkmnLib.Static;
+
+namespace PkmnLib.Dynamic.Libraries;
+
+public interface IMiscLibrary
+{
+    /// <summary>
+    /// Returns the choice that's used when a Pokemon is unable to make the move choice it wants to, or when it has no
+    /// moves left, yet wants to make a move.
+    /// </summary>
+    ITurnChoice ReplacementChoice(IPokemon user, byte targetSide, byte targetPosition);
+    
+    /// <summary>
+    /// Gets the current time of day for the battle.
+    /// </summary>
+    TimeOfDay GetTimeOfDay();
+}

PkmnLib.Dynamic/Models/Battle.cs

@@ -0,0 +1,114 @@
+using PkmnLib.Dynamic.Events;
+using PkmnLib.Dynamic.Libraries;
+using PkmnLib.Dynamic.Models.Choices;
+using PkmnLib.Dynamic.ScriptHandling;
+
+namespace PkmnLib.Dynamic.Models;
+
+/// <summary>
+/// A battle is a representation of a battle in the Pokemon games. It contains all the information needed
+/// to simulate a battle, and can be used to simulate a battle between two parties.
+/// </summary>
+public interface IBattle : IScriptSource
+{
+    /// <summary>
+    /// The library the battle uses for handling.
+    /// </summary>
+    IDynamicLibrary Library { get; }
+
+    /// <summary>
+    /// A list of all different parties in the battle.
+    /// </summary>
+    IReadOnlyList<IBattleParty> Parties { get; }
+
+    /// <summary>
+    /// Whether or not Pokemon can flee from the battle.
+    /// </summary>
+    bool CanFlee { get; }
+
+    /// <summary>
+    /// The number of sides in the battle. Typically 2.
+    /// </summary>
+    byte NumberOfSides { get; }
+
+    /// <summary>
+    /// The number of Pokemon that can be on each side.
+    /// </summary>
+    byte PositionsPerSide { get; }
+
+    /// <summary>
+    /// A list of all sides in the battle.
+    /// </summary>
+    IReadOnlyList<IBattleSide> Sides { get; }
+
+    /// <summary>
+    /// The RNG used for the battle.
+    /// </summary>
+    IBattleRandom Random { get; }
+
+    /// <summary>
+    /// Whether the battle has ended.
+    /// </summary>
+    bool HasEnded { get; }
+
+    /// <summary>
+    /// The result of the battle. If the battle has not ended, this is null.
+    /// </summary>
+    BattleResult? Result { get; }
+
+    /// <summary>
+    /// The handler to send all events to.
+    /// </summary>
+    EventHook EventHook { get; }
+
+    /// <summary>
+    /// The index of the current turn. Initially 0, until the first turn starts when all choices are made.
+    /// </summary>
+    uint CurrentTurnNumber { get; }
+
+    /// <summary>
+    /// A queue of the yet to be executed choices in a turn.
+    /// </summary>
+    BattleChoiceQueue ChoiceQueue { get; }
+
+    /// <summary>
+    /// Get a Pokemon on the battlefield, on a specific side and an index on that side.
+    /// </summary>
+    IPokemon GetPokemon(byte side, byte position);
+
+    /// <summary>
+    /// Returns whether a slot on the battlefield can still be filled. If no party is responsible
+    /// for that slot, or a party is responsible, but has no remaining Pokemon to throw out anymore,
+    /// this returns false.
+    /// </summary>
+    bool CanSlotBeFilled(byte side, byte position);
+
+    /// <summary>
+    /// Validates whether the battle is still in a non-ended state. If the battle has ended, this
+    /// properly sets who has won etc.
+    /// </summary>
+    void ValidateBattleState();
+
+    /// <summary>
+    /// Checks whether a choice is actually possible.
+    /// </summary>
+    void CanUse(ITurnChoice choice);
+    
+    /// <summary>
+    /// Try and set the choice for the battle. If the choice is not valid, this returns false.
+    /// </summary>
+    bool TrySetChoice(ITurnChoice choice);
+    
+    /// <summary>
+    /// Sets the current weather for the battle. If null is passed, this clears the weather.
+    /// </summary>
+    void SetWeather(string? weatherName);
+    
+    /// <summary>
+    /// Gets the current weather of the battle. If no weather is present, this returns null.
+    /// </summary>
+    string? WeatherName { get; }
+    
+    
+    
+}

PkmnLib.Dynamic/Models/BattleChoiceQueue.cs

@@ -0,0 +1,13 @@
+namespace PkmnLib.Dynamic.Models;
+
+/// <summary>
+/// The ChoiceQueue is used to run choices one by one.
+/// </summary>
+/// <remarks>
+/// It functions internally by holding a list of choices, and one by one setting items that have been returned to null,
+/// It holds several helper functions to change the turn order while doing the execution. This is needed, as several
+/// moves in Pokémon actively mess with this order.
+/// </remarks>
+public class BattleChoiceQueue
+{
+}

PkmnLib.Dynamic/Models/BattleParty.cs

@@ -0,0 +1,8 @@
+namespace PkmnLib.Dynamic.Models;
+
+public interface IBattleParty
+{
+    IPokemonParty Party { get; }
+    bool IsResponsibleForIndex(byte side, byte position);
+    bool HasPokemonNotInField();
+}

PkmnLib.Dynamic/Models/BattleRandom.cs

@@ -0,0 +1,13 @@
+using PkmnLib.Static.Utils;
+
+namespace PkmnLib.Dynamic.Models;
+
+public interface IBattleRandom : IRandom
+{
+    /// <summary>
+    /// Gets whether or not a move triggers its secondary effect. This takes its chance, and
+    /// rolls whether it triggers. As a side effect this run scripts to allow modifying this random
+    /// chance.
+    /// </summary>
+    bool EffectChance(float chance, IExecutingMove executingMove, IPokemon target, byte hitNumber);
+}

PkmnLib.Dynamic/Models/BattleResult.cs

@@ -0,0 +1,23 @@
+namespace PkmnLib.Dynamic.Models;
+
+public record struct BattleResult
+{
+    private BattleResult(bool conclusiveResult, byte? winningSide)
+    {
+        ConclusiveResult = conclusiveResult;
+        WinningSide = winningSide;
+    }
+    
+    public static BattleResult Inconclusive => new(false, null);
+    public static BattleResult Conclusive(byte winningSide) => new(true, winningSide);
+    
+    /// <summary>
+    /// Whether the battle has a conclusive result. If false, no side has won.
+    /// </summary>
+    public bool ConclusiveResult { get; }
+    
+    /// <summary>
+    /// The side that won the battle. If null, no side has won.
+    /// </summary>
+    public byte? WinningSide { get; }
+}

PkmnLib.Dynamic/Models/BattleSide.cs

@@ -0,0 +1,120 @@
+using PkmnLib.Dynamic.Models.Choices;
+using PkmnLib.Dynamic.ScriptHandling;
+
+namespace PkmnLib.Dynamic.Models;
+
+/// <summary>
+/// A side in a battle.
+/// </summary>
+public interface IBattleSide : IScriptSource
+{
+    /// <summary>
+    /// The index of the side on the battle.
+    /// </summary>
+    byte Index { get; }
+    
+    /// <summary>
+    /// The number of Pokémon that can be on the side.
+    /// </summary>
+    byte NumberOfPositions { get; }
+    
+    /// <summary>
+    /// A list of Pokémon currently on the battlefield.
+    /// </summary>
+    IReadOnlyList<IPokemon?> Pokemon { get; }
+    
+    /// <summary>
+    /// The currently set choices for all Pokémon on the battlefield. Cleared when the turn starts.
+    /// </summary>
+    IReadOnlyList<ITurnChoice?> SetChoices { get; }
+    
+    /// <summary>
+    /// Whether every Pokémon on this side has its choices  
+    /// </summary>
+    bool AllChoicesSet { get; }
+    
+    /// <summary>
+    /// The slots on the side that can still be filled. Once all slots are set to false, this side
+    /// has lost the battle.
+    /// </summary>
+    IReadOnlyList<bool> FillablePositions { get; }
+    
+    /// <summary>
+    /// A reference to the battle this side is in.
+    /// </summary>
+    IBattle Battle { get; }
+    
+    /// <summary>
+    /// Whether this side has fled.
+    /// </summary>
+    bool HasFledBattle { get; }
+    
+    /// <summary>
+    /// The volatile scripts that are attached to the side.
+    /// </summary>
+    IScriptSet VolatileScripts { get; }
+    
+    /// <summary>
+    /// Returns true if there are slots that need to be filled with a new pokemon, that have parties
+    /// responsible for them. Returns false if all slots are filled with usable pokemon, or slots are
+    /// empty, but can't be filled by any party anymore.
+    /// </summary>
+    void AllPositionsFilled();
+
+    /// <summary>
+    /// Sets a choice for a Pokémon on this side.
+    /// </summary>
+    void SetChoice(byte position, ITurnChoice choice);
+    
+    /// <summary>
+    /// Resets all choices on this side.
+    /// </summary>
+    void ResetChoices();
+    
+    /// <summary>
+    /// Forcibly removes a Pokémon from the field.
+    /// </summary>
+    void ForceClearPokemonFromField();
+
+    /// <summary>
+    /// Switches out a spot on the field for a different Pokémon. If null is passed, the spot is
+    /// cleared. Returns the Pokémon that was previously in the spot.
+    /// </summary>
+    IPokemon? SwapPokemon(byte position, IPokemon? pokemon);
+
+    /// <summary>
+    /// Swaps two Pokémon on the side.
+    /// </summary>
+    void SwapPokemon(byte position1, byte position2);
+
+    /// <summary>
+    /// Checks whether a Pokemon is on the field in this side.
+    /// </summary>
+    bool IsPokemonOnSide(IPokemon pokemon);
+
+    /// <summary>
+    /// Marks a slot as unfillable. This happens when no parties are able to fill the slot anymore.
+    /// If this happens, the slot can not be used again.
+    /// </summary>
+    void MarkPositionAsUnfillable(byte position);
+
+    /// <summary>
+    /// Checks whether a slot is fillable. If it is not, the slot can not be used anymore.
+    /// </summary>
+    bool IsPositionFillable(byte position);
+
+    /// <summary>
+    /// Checks whether the side has been defeated.
+    /// </summary>
+    bool IsDefeated();
+
+    /// <summary>
+    /// Mark the side as fled.
+    /// </summary>
+    void MarkAsFled();
+
+    /// <summary>
+    /// Gets a random Pokémon on the given side.
+    /// </summary>
+    byte GetRandomPosition();
+}

PkmnLib.Dynamic/Models/Choices/FleeChoice.cs

@@ -0,0 +1,6 @@
+namespace PkmnLib.Dynamic.Models.Choices;
+
+public interface IFleeChoice : ITurnChoice
+{
+    
+}

PkmnLib.Dynamic/Models/Choices/ItemChoice.cs

@@ -0,0 +1,6 @@
+namespace PkmnLib.Dynamic.Models.Choices;
+
+public interface IItemChoice : ITurnChoice
+{
+    
+}

PkmnLib.Dynamic/Models/Choices/MoveChoice.cs

@@ -0,0 +1,74 @@
+using PkmnLib.Dynamic.ScriptHandling;
+
+namespace PkmnLib.Dynamic.Models.Choices;
+
+/// <summary>
+/// The choice of a Pokémon to use a move.
+/// </summary>
+public interface IMoveChoice : ITurnChoice
+{
+    /// <summary>
+    /// The move that is used.
+    /// </summary>
+    ILearnedMove UsedMove { get; }
+
+    /// <summary>
+    /// The side the move is targeted at.
+    /// </summary>
+    byte TargetSide { get; }
+
+    /// <summary>
+    /// The position the move is targeted at.
+    /// </summary>
+    byte TargetPosition { get; }
+
+    /// <summary>
+    /// The priority of the move.
+    /// </summary>
+    sbyte Priority { get; set; }
+
+    /// <summary>
+    /// The underlying script of the move.
+    /// </summary>
+    ScriptContainer Script { get; set; }
+}
+
+/// <inheritdoc cref="IMoveChoice"/>
+public class MoveChoice : TurnChoice, IMoveChoice
+{
+    /// <inheritdoc cref="MoveChoice"/>
+    public MoveChoice(IPokemon user, ILearnedMove usedMove, byte targetSide, byte targetPosition) : base(user)
+    {
+        UsedMove = usedMove;
+        TargetSide = targetSide;
+        TargetPosition = targetPosition;
+    }
+
+    /// <inheritdoc />
+    public ILearnedMove UsedMove { get; }
+
+    /// <inheritdoc />
+    public byte TargetSide { get; }
+
+    /// <inheritdoc />
+    public byte TargetPosition { get; }
+
+    /// <inheritdoc />
+    public sbyte Priority { get; set; }
+
+    /// <inheritdoc />
+    public ScriptContainer Script { get; set; } = new();
+
+    /// <inheritdoc />
+    public override int ScriptCount => 1 + User.ScriptCount;
+
+    /// <inheritdoc />
+    public override void GetOwnScripts(List<IEnumerable<ScriptContainer>> scripts) => scripts.Add(Script);
+
+    /// <inheritdoc />
+    public override void CollectScripts(List<IEnumerable<ScriptContainer>> scripts)
+    {
+        GetOwnScripts(scripts);
+        User.CollectScripts(scripts);
+    }
+}

PkmnLib.Dynamic/Models/Choices/PassChoice.cs

@@ -0,0 +1,6 @@
+namespace PkmnLib.Dynamic.Models.Choices;
+
+public interface IPassChoice : ITurnChoice
+{
+    
+}

PkmnLib.Dynamic/Models/Choices/SwitchChoice.cs

@@ -0,0 +1,6 @@
+namespace PkmnLib.Dynamic.Models.Choices;
+
+public interface ISwitchChoice : ITurnChoice
+{
+    
+}

PkmnLib.Dynamic/Models/Choices/TurnChoice.cs

@@ -0,0 +1,56 @@
+using PkmnLib.Dynamic.ScriptHandling;
+
+namespace PkmnLib.Dynamic.Models.Choices;
+
+public interface ITurnChoice : IScriptSource
+{
+    /// <summary>
+    /// The user of the turn choice
+    /// </summary>
+    IPokemon User { get; }
+
+    /// <summary>
+    /// The speed of the user at the beginning of the turn.
+    /// </summary>
+    uint Speed { get; set; }
+
+    /// <summary>
+    /// This random value is set at the beginning of the turn. It is used for tie breaking of the
+    /// turn order in a predictable way, regardless of implementation and hardware.
+    /// </summary>
+    uint RandomValue { get; set; }
+
+    /// <summary>
+    /// Whether the choice has failed. A failed choice will stop running, and execute special
+    /// fail handling during turn execution.
+    /// </summary>
+    bool HasFailed { get; }
+
+    /// <summary>
+    /// Fails the choice. This will prevent it from executing and run a specific fail handling during
+    /// execution. Note that this can not be undone.
+    /// </summary>
+    public void Fail();
+}
+
+public abstract class TurnChoice : ScriptSource, ITurnChoice
+{
+    protected TurnChoice(IPokemon user)
+    {
+        User = user;
+    }
+
+    public IPokemon User { get; }
+
+    public uint Speed { get; set; }
+
+    public uint RandomValue { get; set; }
+
+    public bool HasFailed { get; private set; }
+
+    public void Fail()
+    {
+        HasFailed = true;
+    }
+}
+

PkmnLib.Dynamic/Models/Choices/TurnChoiceComparer.cs

@@ -0,0 +1,83 @@
+namespace PkmnLib.Dynamic.Models.Choices;
+
+/// <summary>
+/// Comparer for turnchoices, to determine the order in which they should be executed.
+/// </summary>
+public class TurnChoiceComparer : IComparer<ITurnChoice>
+{
+    private enum CompareValues
+    {
+        XEqualsY = 0,
+        XLessThanY = -1,
+        XGreaterThanY = 1
+    }
+
+    private CompareValues CompareForSameType(ITurnChoice x, ITurnChoice y)
+    {
+        // Higher speed goes first
+        var speedComparison = x.Speed.CompareTo(y.Speed);
+        if (speedComparison != 0)
+            return (CompareValues)speedComparison;
+        // If speed is equal, we use the random values we've given to each choice to tiebreak.
+        // This is to ensure that the order of choices is deterministic.
+        return (CompareValues)x.RandomValue.CompareTo(y.RandomValue);
+    }
+    
+    private CompareValues CompareImpl(ITurnChoice? x, ITurnChoice? y)
+    {
+        // Deal with possible null values
+        switch (x)
+        {
+            case null when y is null:
+                return CompareValues.XEqualsY;
+            case null:
+                return CompareValues.XLessThanY;
+        }
+        if (y is null)
+            return CompareValues.XGreaterThanY;
+
+        switch (x)
+        {
+            case IMoveChoice moveX:
+                // Move choices go first
+                if (y is IMoveChoice moveY)
+                {
+                    // Higher priority goes first
+                    var priorityComparison = moveX.Priority.CompareTo(moveY.Priority);
+                    if (priorityComparison != 0)
+                        return (CompareValues)priorityComparison;
+                    return CompareForSameType(moveX, moveY);
+                }
+                return CompareValues.XGreaterThanY;
+            case IItemChoice itemX:
+                // Item choices go second
+                return y switch
+                {
+                    IMoveChoice => CompareValues.XLessThanY,
+                    IItemChoice itemY => CompareForSameType(itemX, itemY),
+                    _ => CompareValues.XGreaterThanY
+                };
+            case ISwitchChoice switchX:
+                // Switch choices go third
+                return y switch
+                {
+                    IMoveChoice or IItemChoice => CompareValues.XLessThanY,
+                    ISwitchChoice switchY => CompareForSameType(switchX, switchY),
+                    _ => CompareValues.XGreaterThanY
+                };
+            case IPassChoice passX:
+                // Pass choices go last
+                return y switch
+                {
+                    IMoveChoice or IItemChoice or ISwitchChoice => CompareValues.XLessThanY,
+                    IPassChoice passY => CompareForSameType(passX, passY),
+                    _ => CompareValues.XGreaterThanY
+                };
+        }
+        
+        return CompareValues.XLessThanY;
+    }
+
+    /// <inheritdoc />
+    public int Compare(ITurnChoice? x, ITurnChoice? y) => (int) CompareImpl(x, y);
+}

PkmnLib.Dynamic/Models/DamageSource.cs

@@ -0,0 +1,22 @@
+namespace PkmnLib.Dynamic.Models;
+
+/// <summary>
+/// Where the damage comes from.
+/// </summary>
+public enum DamageSource
+{
+    /// <summary>
+    /// The damage is done by a move.
+    /// </summary>
+    MoveDamage = 0,
+
+    /// <summary>
+    /// The damage is done by something else.
+    /// </summary>
+    Misc = 1,
+
+    /// <summary>
+    /// The damage is done because of struggling.
+    /// </summary>
+    Struggle = 2,
+}

PkmnLib.Dynamic/Models/ExecutingMove.cs

@@ -0,0 +1,104 @@
+using PkmnLib.Dynamic.ScriptHandling;
+using PkmnLib.Static;
+using PkmnLib.Static.Moves;
+
+namespace PkmnLib.Dynamic.Models;
+
+/// <summary>
+/// A hit data is the data for a single hit, on a single target.
+/// </summary>
+public record HitData
+{
+    /// <summary>
+    /// Whether the hit is critical.
+    /// </summary>
+    public bool IsCritical { get; internal set; }
+
+    /// <summary>
+    /// The base power of the hit.
+    /// </summary>
+    public byte BasePower { get; internal set; }
+
+    /// <summary>
+    /// The effectiveness of the hit.
+    /// </summary>
+    public float Effectiveness { get; internal set; }
+
+    /// <summary>
+    /// The damage done by the hit.
+    /// </summary>
+    public uint Damage { get; internal set; }
+
+    /// <summary>
+    /// The type of the hit.
+    /// </summary>
+    public TypeIdentifier Type { get; internal set; }
+
+    /// <summary>
+    /// Whether the hit has failed.
+    /// </summary>
+    public bool HasFailed { get; private set; }
+
+    /// <summary>
+    /// Fails the hit.
+    /// </summary>
+    public void Fail() => HasFailed = true;
+}
+
+/// <summary>
+/// An executing move is the data of the move for while it is executing.
+/// </summary>
+public interface IExecutingMove : IScriptSource
+{
+    /// <summary>
+    /// The number of targets this move has.
+    /// </summary>
+    int TargetCount { get; }
+
+    /// <summary>
+    /// The number of hits this move has per target.
+    /// </summary>
+    byte NumberOfHits { get; }
+
+    /// <summary>
+    /// The user of the move.
+    /// </summary>
+    IPokemon User { get; }
+
+    /// <summary>
+    /// The move the user has actually chosen to do.
+    /// </summary>
+    ILearnedMove ChosenMove { get; }
+
+    /// <summary>
+    /// The move that the user is actually going to do. This can be different from the chosen move, for example
+    /// when metronome is used, in which case the chosen move will be metronome, and the movedata will be the
+    /// move that metronome has chosen.
+    /// </summary>
+    IMoveData UseMove { get; }
+
+    /// <summary>
+    /// The script of the move.
+    /// </summary>
+    ScriptContainer Script { get; }
+
+    /// <summary>
+    /// Gets a hit data for a target, with a specific index.
+    /// </summary>
+    HitData GetHitData(IPokemon target, byte hit);
+
+    /// <summary>
+    /// Checks whether a Pokémon is a target for this move.
+    /// </summary>
+    bool IsPokemonTarget(IPokemon target);
+
+    /// <summary>
+    /// Gets the index of the hits in this move where the hits for a specific target start.
+    /// </summary>
+    int GetTargetIndex(IPokemon target);
+
+    /// <summary>
+    /// Gets a hit based on its raw index.
+    /// </summary>
+    HitData GetDataFromRawIndex(int index);
+}

PkmnLib.Dynamic/Models/LearnedMove.cs

@@ -0,0 +1,114 @@
+using PkmnLib.Static.Moves;
+
+namespace PkmnLib.Dynamic.Models;
+
+/// <summary>
+/// The different ways a move can be learned.
+/// </summary>
+public enum MoveLearnMethod
+{
+    /// <summary>
+    /// We do not know the learn method.
+    /// </summary>
+    Unknown,
+
+    /// <summary>
+    /// The move is learned by leveling up.
+    /// </summary>
+    LevelUp,
+
+    /// <summary>
+    /// The move is learned when the Pokémon is hatched from an egg.
+    /// </summary>
+    Egg,
+
+    /// <summary>
+    /// The move is learned by using a tutor in the game.
+    /// </summary>
+    Tutor,
+
+    /// <summary>
+    /// The move is learned by using a TM or HM.
+    /// </summary>
+    Machine,
+
+    /// <summary>
+    /// The move is learned when the Pokémon changes form.
+    /// </summary>
+    FormChange
+}
+
+/// <summary>
+/// A learned move is the data attached to a Pokemon for a move it has learned. It has information
+/// such as the remaining amount of users, how it has been learned, etc.
+/// </summary>
+public interface ILearnedMove
+{
+    /// <summary>
+    /// The immutable move information of the move.
+    /// </summary>
+    IMoveData MoveData { get; }
+
+    /// <summary>
+    /// The maximal power points for this move.
+    /// </summary>
+    byte MaxPp { get; }
+
+    /// <summary>
+    /// The way the move has been learned.
+    /// </summary>
+    MoveLearnMethod LearnMethod { get; }
+
+    /// <summary>
+    /// Try and reduce the PP by a certain amount. If the amount is higher than the current uses,
+    /// return false. Otherwise, reduce the PP, and return true.
+    /// </summary>
+    bool TryUse(byte amount = 1);
+
+    /// <summary>
+    /// Set the remaining PP to the max amount of PP.
+    /// </summary>
+    void RestoreAllUses();
+
+    /// <summary>
+    /// Restore the remaining PP by a certain amount. Will prevent it from going above max PP.
+    /// </summary>
+    void RestoreUses(byte amount);
+}
+
+/// <inheritdoc />
+public class LearnedMoveImpl : ILearnedMove
+{
+    private byte _maxPpModification = 0;
+    
+    public LearnedMoveImpl(IMoveData moveData, MoveLearnMethod learnMethod)
+    {
+        MoveData = moveData;
+        LearnMethod = learnMethod;
+        CurrentPp = MaxPp;
+    }
+
+    /// <inheritdoc />
+    public IMoveData MoveData { get; }
+
+    /// <inheritdoc />
+    public byte MaxPp => (byte)(MoveData.BaseUsages + _maxPpModification);
+
+    /// <inheritdoc />
+    public MoveLearnMethod LearnMethod { get; }
+    
+    public byte CurrentPp { get; private set; }
+    
+    public bool TryUse(byte amount = 1)
+    {
+        if (CurrentPp < amount)
+            return false;
+        
+        CurrentPp -= amount;
+        return true;
+    }
+
+    public void RestoreAllUses() => CurrentPp = MaxPp;
+
+    public void RestoreUses(byte amount) => CurrentPp = (byte)Math.Min(CurrentPp + amount, MaxPp);
+}

PkmnLib.Dynamic/Models/Pokemon.cs

@@ -0,0 +1,292 @@
+using JetBrains.Annotations;
+using PkmnLib.Dynamic.Events;
+using PkmnLib.Dynamic.Libraries;
+using PkmnLib.Dynamic.ScriptHandling;
+using PkmnLib.Static;
+using PkmnLib.Static.Species;
+
+namespace PkmnLib.Dynamic.Models;
+
+/// <summary>
+/// The data of a Pokemon.
+/// </summary>
+public interface IPokemon : IScriptSource
+{
+    /// <summary>
+    /// The library data of the Pokemon.
+    /// </summary>
+    IDynamicLibrary Library { get; }
+
+    /// <summary>
+    /// The species of the Pokemon.
+    /// </summary>
+    ISpecies Species { get; }
+
+    /// <summary>
+    /// The form of the Pokemon.
+    /// </summary>
+    IForm Form { get; }
+
+    /// <summary>
+    /// An optional display species of the Pokemon. If this is set, the client should display this
+    /// species. An example of usage for this is the Illusion ability.
+    /// </summary>
+    ISpecies? DisplaySpecies { get; }
+
+    /// <summary>
+    /// An optional display form of the Pokemon. If this is set, the client should display this
+    /// form. An example of usage for this is the Illusion ability.
+    /// </summary>
+    IForm? DisplayForm { get; }
+
+    /// <summary>
+    /// The current level of the Pokemon.
+    /// </summary>
+    LevelInt Level { get; }
+
+    /// <summary>
+    /// The amount of experience of the Pokemon.
+    /// </summary>
+    uint Experience { get; }
+
+    /// <summary>
+    /// The personality value of the Pokemon.
+    /// </summary>
+    uint PersonalityValue { get; }
+
+    /// <summary>
+    /// The gender of the Pokemon.
+    /// </summary>
+    Gender Gender { get; }
+
+    /// <summary>
+    /// The coloring of the Pokemon. Value 0 is the default, value 1 means shiny. Other values are
+    /// currently not used, and can be used for other implementations.
+    /// </summary>
+    byte Coloring { get; }
+
+    /// <summary>
+    /// The held item of the Pokemon.
+    /// </summary>
+    IItem? HeldItem { get; }
+
+    /// <summary>
+    /// The remaining health points of the Pokemon.
+    /// </summary>
+    uint CurrentHealth { get; }
+
+    /// <summary>
+    /// The weight of the Pokemon in kilograms.
+    /// </summary>
+    float WeightInKm { get; set; }
+
+    /// <summary>
+    /// The height of the Pokemon in meters.
+    /// </summary>
+    float HeightInMeters { get; set; }
+
+    /// <summary>
+    /// The happiness of the Pokemon. Also known as friendship.
+    /// </summary>
+    byte Happiness { get; }
+
+    /// <summary>
+    /// The stats of the Pokemon when disregarding any stat boosts.
+    /// </summary>
+    StatisticSet<uint> FlatStats { get; }
+
+    /// <summary>
+    /// The statistics boosts of the Pokemon. Will prevent the value from going above 6, and below
+    /// -6.
+    /// </summary>
+    StatBoostStatisticSet StatBoost { get; }
+
+    /// <summary>
+    /// The stats of the Pokemon including the stat boosts
+    /// </summary>
+    StatisticSet<uint> BoostedStats { get; }
+
+    /// <summary>
+    /// The individual values of the Pokemon.
+    /// </summary>
+    IndividualValueStatisticSet IndividualValues { get; }
+
+    /// <summary>
+    /// The effort values of the Pokemon.
+    /// </summary>
+    EffortValueStatisticSet EffortValues { get; }
+
+    /// <summary>
+    /// The nature of the Pokemon.
+    /// </summary>
+    INature Nature { get; }
+
+    /// <summary>
+    /// An optional nickname of the Pokemon.
+    /// </summary>
+    string? Nickname { get; }
+
+    /// <summary>
+    /// An index of the ability to find the actual ability on the form.
+    /// </summary>
+    AbilityIndex AbilityIndex { get; }
+
+    /// <summary>
+    /// An ability can be overriden to an arbitrary ability. This is for example used for the Mummy
+    /// ability.
+    /// </summary>
+    IAbility? OverrideAbility { get; }
+
+    /// <summary>
+    /// If in battle, we have additional data.
+    /// </summary>
+    IPokemonBattleData? BattleData { get; }
+
+    /// <summary>
+    /// The moves the Pokemon has learned. This is of a set length of <see cref="Const.MovesCount"/>. Empty move slots
+    /// are null.
+    /// </summary>
+    IReadOnlyList<ILearnedMove?> Moves { get; }
+
+    /// <summary>
+    /// Whether or not the Pokemon is allowed to gain experience.
+    /// </summary>
+    bool AllowedExperience { get; }
+
+    /// <summary>
+    /// The current types of the Pokemon.
+    /// </summary>
+    IReadOnlyList<TypeIdentifier> Types { get; }
+
+    /// <summary>
+    /// Whether or not this Pokemon is an egg.
+    /// </summary>
+    bool IsEgg { get; }
+
+    /// <summary>
+    /// Whether or not this Pokemon was caught this battle.
+    /// </summary>
+    bool IsCaught { get; }
+
+    /// <summary>
+    /// The script for the held item.
+    /// </summary>
+    ScriptContainer HeldItemTriggerScript { get; }
+
+    /// <summary>
+    /// The script for the ability.
+    /// </summary>
+    ScriptContainer AbilityScript { get; }
+
+    /// <summary>
+    /// The script for the status.
+    /// </summary>
+    ScriptContainer StatusScript { get; }
+
+    /// <summary>
+    /// The volatile status scripts of the Pokemon.
+    /// </summary>
+    IScriptSet Volatile { get; }
+
+    /// <summary>
+    /// Checks whether the Pokemon is holding an item with a specific name.
+    /// </summary>
+    bool HasHeldItem(string itemName);
+    
+    /// <summary>
+    /// Changes the held item of the Pokemon. Returns the previously held item.
+    /// </summary>
+    [MustUseReturnValue] IItem? SetHeldItem(IItem? item);
+    
+    /// <summary>
+    /// Removes the held item from the Pokemon. Returns the previously held item.
+    /// </summary>
+    [MustUseReturnValue] IItem? RemoveHeldItem();
+
+    /// <summary>
+    /// Makes the Pokemon uses its held item. Returns whether the item was consumed.
+    /// </summary>
+    bool ConsumeHeldItem();
+    
+    /// <summary>
+    /// Change a boosted stat by a certain amount.
+    /// </summary>
+    /// <param name="stat">The stat to be changed</param>
+    /// <param name="change">The amount to change the stat by</param>
+    /// <param name="selfInflicted">Whether the change was self-inflicted. This can be relevant in scripts.</param>
+    void ChangeStatBoost(Statistic stat, sbyte change, bool selfInflicted);
+    
+    /// <summary>
+    /// Returns the currently active ability.
+    /// </summary>
+    IAbility ActiveAbility { get; }
+    
+    /// <summary>
+    /// Calculates the flat stats on the Pokemon. This should be called when for example the base
+    /// stats, level, nature, IV, or EV changes. This has a side effect of recalculating the boosted
+    /// stats, as those depend on the flat stats.
+    /// </summary>
+    void RecalculateFlatStats();
+    
+    /// <summary>
+    /// Calculates the boosted stats on the Pokemon, _without_ recalculating the flat stats.
+    /// This should be called when a stat boost changes.
+    /// </summary>
+    void RecalculateBoostedStats();
+    
+    /// <summary>
+    /// Change the species of the Pokemon.
+    /// </summary>
+    void ChangeSpecies(ISpecies species, IForm form);
+    
+    /// <summary>
+    /// Change the form of the Pokemon.
+    /// </summary>
+    void ChangeForm(IForm form);
+    
+    /// <summary>
+    /// Whether the Pokemon is useable in a battle.
+    /// </summary>
+    bool IsUsable { get; }
+    
+    /// <summary>
+    /// Whether the Pokemon is fainted.
+    /// </summary>
+    bool IsFainted { get; }
+    
+    /// <summary>
+    /// Damages the Pokemon by a certain amount of damage, from a damage source.
+    /// </summary>
+    void Damage(uint damage, DamageSource source, EventBatchId batchId);
+    
+    /// <summary>
+    /// Heals the Pokemon by a specific amount. Unless allow_revive is set to true, this will not
+    /// heal if the Pokemon has 0 health. If the amount healed is 0, this will return false.
+    /// </summary>
+    bool Heal(uint heal, bool allowRevive);
+    
+    /// <summary>
+    /// Learn a move by name.
+    /// </summary>
+    void LearnMove(string moveName, MoveLearnMethod method, byte index);
+    
+    /// <summary>
+    /// Removes the current non-volatile status from the Pokemon.
+    /// </summary>
+    void ClearStatus();
+    
+    /// <summary>
+    /// Modifies the level by a certain amount
+    /// </summary>
+    void ChangeLevelBy(int change);
+    
+    // TODO: (de)serialize
+}
+
+/// <summary>
+/// The data of the Pokemon related to being in a battle.
+/// </summary>
+public interface IPokemonBattleData
+{
+    IBattle? Battle { get; }
+}

PkmnLib.Dynamic/Models/PokemonParty.cs

@@ -0,0 +1,59 @@
+using System.Collections;
+
+namespace PkmnLib.Dynamic.Models;
+
+public interface IPokemonParty : IReadOnlyList<IPokemon?>
+{
+    /// <summary>
+    /// Sets the Pokemon at an index to a Pokemon, returning the old Pokemon.
+    /// </summary>
+    IPokemon? SwapInto(IPokemon pokemon, int index);
+
+    /// <summary>
+    /// Swaps two Pokemon in the party around.
+    /// </summary>
+    void Swap(int index1, int index2);
+
+    bool HasUsablePokemon();
+}
+
+public class PokemonParty : IPokemonParty
+{
+    private readonly IPokemon?[] _pokemon;
+
+    public PokemonParty(int size)
+    {
+        _pokemon = new IPokemon[size];
+    }
+
+    /// <summary>
+    /// Sets the Pokemon at an index to a Pokemon, returning the old Pokemon.
+    /// </summary>
+    public IPokemon? SwapInto(IPokemon pokemon, int index)
+    {
+        var old = _pokemon[index];
+        _pokemon[index] = pokemon;
+        return old;
+    }
+
+    /// <summary>
+    /// Swaps two Pokemon in the party around.
+    /// </summary>
+    public void Swap(int index1, int index2) =>
+        (_pokemon[index1], _pokemon[index2]) = (_pokemon[index2], _pokemon[index1]);
+
+
+    public bool HasUsablePokemon() => _pokemon.Any(p => p != null && p.IsUsable);
+    
+    /// <inheritdoc />
+    public IEnumerator<IPokemon?> GetEnumerator() => ((IEnumerable<IPokemon?>)_pokemon).GetEnumerator();
+
+    /// <inheritdoc />
+    IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
+
+    /// <inheritdoc />
+    public int Count => _pokemon.Length;
+
+    /// <inheritdoc />
+    public IPokemon? this[int index] => _pokemon[index];
+}

PkmnLib.Dynamic/PkmnLib.Dynamic.csproj

@@ -0,0 +1,32 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netstandard2.1</TargetFramework>
+        <LangVersion>12</LangVersion>
+        <Nullable>enable</Nullable>
+        <WarningsAsErrors>nullable</WarningsAsErrors>
+        <ImplicitUsings>enable</ImplicitUsings>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Debug' ">
+      <DocumentationFile>bin\Debug\netstandard2.1\PkmnLib.Dynamic.xml</DocumentationFile>
+    </PropertyGroup>
+
+    <PropertyGroup Condition=" '$(Configuration)' == 'Release' ">
+      <DocumentationFile>bin\Release\netstandard2.1\PkmnLib.Dynamic.xml</DocumentationFile>
+    </PropertyGroup>
+
+    <ItemGroup>
+        <PackageReference Include="FluentResults" Version="3.16.0" />
+        <PackageReference Include="JetBrains.Annotations" Version="2024.2.0" />
+        <PackageReference Include="PolySharp" Version="1.14.1">
+            <PrivateAssets>all</PrivateAssets>
+            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+        </PackageReference>
+        <PackageReference Include="System.Collections.Immutable" Version="8.0.0" />
+    </ItemGroup>
+    <ItemGroup>
+      <ProjectReference Include="..\PkmnLib.Static\PkmnLib.Static.csproj" />
+    </ItemGroup>
+
+</Project>

PkmnLib.Dynamic/ScriptHandling/Registry/Plugin.cs

@@ -0,0 +1,23 @@
+namespace PkmnLib.Dynamic.ScriptHandling.Registry;
+
+/// <summary>
+/// A plugin is a way to register scripts and other dynamic components to the script registry.
+/// </summary>
+public abstract class Plugin
+{
+    /// <summary>
+    /// The name of the plugin. Mostly used for debugging purposes.
+    /// </summary> 
+    public abstract string Name { get; }
+
+    /// <summary>
+    /// When the plugin should be loaded. Lower values are loaded first.
+    /// 0 should be reserved for the core battle scripts.
+    /// </summary>
+    public abstract uint LoadOrder { get; }
+
+    /// <summary>
+    /// Run the registration of the plugin when we're building the library.
+    /// </summary>
+    public abstract void Register(ScriptRegistry registry);
+}

PkmnLib.Dynamic/ScriptHandling/Registry/ScriptAttribute.cs

@@ -0,0 +1,14 @@
+namespace PkmnLib.Dynamic.ScriptHandling;
+
+[AttributeUsage(AttributeTargets.Class)]
+public class ScriptAttribute : Attribute
+{
+    public ScriptCategory Category { get; }
+    public string Name { get; }
+    
+    public ScriptAttribute(ScriptCategory category, string name)
+    {
+        Category = category;
+        Name = name;
+    }
+}

PkmnLib.Dynamic/ScriptHandling/Registry/ScriptRegistry.cs

@@ -0,0 +1,56 @@
+using System.Linq.Expressions;
+using System.Reflection;
+using PkmnLib.Dynamic.Libraries;
+
+namespace PkmnLib.Dynamic.ScriptHandling;
+
+public class ScriptRegistry
+{
+    private Dictionary<(ScriptCategory category, string name), Func<Script>> _scriptTypes = new();
+    private IBattleStatCalculator? _battleStatCalculator;
+    private IDamageCalculator? _damageCalculator;
+    private IMiscLibrary? _miscLibrary;
+
+    public void RegisterAssemblyScripts(Assembly assembly)
+    {
+        var baseType = typeof(Script);
+        foreach (var type in assembly.GetTypes().Where(t => baseType.IsAssignableFrom(t)))
+        {
+            var attribute = type.GetCustomAttribute<ScriptAttribute>();
+            if (attribute == null)
+                continue;
+
+            RegisterScriptType(attribute.Category, attribute.Name, type);
+        }
+    }
+
+    public void RegisterScriptType(ScriptCategory category, string name, Type type)
+    {
+        if (name == null)
+            throw new ArgumentNullException(nameof(name));
+        if (type == null)
+            throw new ArgumentNullException(nameof(type));
+
+        var constructor = type.GetConstructor(Type.EmptyTypes);
+        if (constructor == null)
+            throw new ArgumentException("The type must have a parameterless constructor.");
+
+        // We create a lambda that creates a new instance of the script type.
+        // This is more performant than using Activator.CreateInstance.
+        _scriptTypes[(category, name)] = Expression.Lambda<Func<Script>>(Expression.New(constructor)).Compile();
+    }
+
+    public void RegisterBattleStatCalculator<T>(T battleStatCalculator)
+        where T : IBattleStatCalculator => _battleStatCalculator = battleStatCalculator;
+
+    public void RegisterDamageCalculator<T>(T damageCalculator)
+        where T : IDamageCalculator => _damageCalculator = damageCalculator;
+
+    public void RegisterMiscLibrary<T>(T miscLibrary) where T : IMiscLibrary
+        => _miscLibrary = miscLibrary;
+
+    internal Dictionary<(ScriptCategory category, string name), Func<Script>> ScriptTypes => _scriptTypes;
+    internal IBattleStatCalculator? BattleStatCalculator => _battleStatCalculator;
+    internal IDamageCalculator? DamageCalculator => _damageCalculator;
+    internal IMiscLibrary? MiscLibrary => _miscLibrary;
+}

PkmnLib.Dynamic/ScriptHandling/Script.cs

@@ -0,0 +1,6 @@
+namespace PkmnLib.Dynamic.ScriptHandling;
+
+public abstract class Script
+{
+    
+}

PkmnLib.Dynamic/ScriptHandling/ScriptCategory.cs

@@ -0,0 +1,57 @@
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Dynamic.Models.Choices;
+
+namespace PkmnLib.Dynamic.ScriptHandling;
+
+/// <summary>
+/// A script category defines a sub-group of scripts. This can be used to have multiple scripts with
+/// the same name, but a different script. It should be completely valid for a move to have the same
+/// name as an ability, or more commonly: for a script attached to a Pokemon to have the same name as
+/// a move that placed it there.
+/// </summary>
+public enum ScriptCategory
+{
+    /// <summary>
+    /// A script that belongs to a move. This generally is only the script that is attached to a
+    /// <see cref="IMoveChoice"/> and <see cref="IExecutingMove"/>
+    /// </summary>
+    Move = 0,
+
+    /// <summary>
+    /// An ability script. Scripts in this category are always abilities, and therefore always
+    /// attached to a Pokemon.
+    /// </summary>
+    Ability = 1,
+
+    /// <summary>
+    /// A non volatile status script. Scripts in this category are always non volatile statuses, and
+    /// therefore always attached to a Pokemon.
+    /// </summary>
+    Status = 2,
+
+    /// <summary>
+    /// A volatile status script. Scripts in this category are always volatile status effects, and
+    /// therefore always attached to a Pokemon.
+    /// </summary>
+    Pokemon = 3,
+
+    /// <summary>
+    /// A script that can be attached to an entire side.
+    /// </summary>
+    Side = 4,
+
+    /// <summary>
+    /// A script that can be attached to the entire battle.
+    /// </summary>
+    Battle = 5,
+
+    /// <summary>
+    /// A special script for weather, for use on battles.
+    /// </summary>
+    Weather = 6,
+
+    /// <summary>
+    /// A special script for held items. As they're part of a held item, they're attached to a Pokemon.
+    /// </summary>
+    ItemBattleTrigger = 7,
+}

PkmnLib.Dynamic/ScriptHandling/ScriptContainer.cs

@@ -0,0 +1,22 @@
+using System.Collections;
+
+namespace PkmnLib.Dynamic.ScriptHandling;
+
+public class ScriptContainer : IEnumerable<ScriptContainer>
+{
+    private Script? _script = null;
+
+    public bool IsEmpty => _script is null;
+
+    /// <inheritdoc />
+    public IEnumerator<ScriptContainer> GetEnumerator()
+    {
+        yield return this;
+    }
+    
+
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        return GetEnumerator();
+    }
+}

PkmnLib.Dynamic/ScriptHandling/ScriptIterator.cs

@@ -0,0 +1,71 @@
+using System.Collections;
+
+namespace PkmnLib.Dynamic.ScriptHandling;
+
+public class ScriptIterator : IEnumerable<ScriptContainer>
+{
+    private readonly IReadOnlyList<IEnumerable<ScriptContainer>> _scripts;
+    private int _index = -1;
+    private int _setIndex = -1;
+
+    public ScriptIterator(IReadOnlyList<IEnumerable<ScriptContainer>> scripts)
+    {
+        _scripts = scripts;
+    }
+
+    bool IncrementToNext()
+    {
+        if (_index != -1)
+        {
+            var current = _scripts[_index];
+            if (current is IScriptSet)
+            {
+                _setIndex += 1;
+                if (_setIndex >= current.Count())
+                {
+                    _setIndex = -1;
+                }
+                else
+                {
+                    return true;
+                }
+            }
+        }
+
+        _index += 1;
+        for (; _index < _scripts.Count; _index++)
+        {
+            switch (_scripts[_index])
+            {
+                case IScriptSet:
+                    _setIndex = 0;
+                    return true;
+                case ScriptContainer { IsEmpty: false }:
+                    return true;
+            }
+        }
+
+        return false;
+    }
+    
+    /// <inheritdoc />
+    public IEnumerator<ScriptContainer> GetEnumerator()
+    {
+        while (IncrementToNext())
+        {
+            var current = _scripts[_index];
+            yield return current switch
+            {
+                IScriptSet set => set.At(_setIndex),
+                ScriptContainer container => container,
+                _ => throw new InvalidOperationException("Invalid script type")
+            };
+        }
+    }
+
+    /// <inheritdoc />
+    IEnumerator IEnumerable.GetEnumerator()
+    {
+        return GetEnumerator();
+    }
+}

PkmnLib.Dynamic/ScriptHandling/ScriptSet.cs

@@ -0,0 +1,16 @@
+using FluentResults;
+
+namespace PkmnLib.Dynamic.ScriptHandling;
+
+public interface IScriptSet : IEnumerable<ScriptContainer>
+{
+    Result<ScriptContainer> Add(Script script);
+    Result<ScriptContainer?> Add(string scriptKey);
+    ScriptContainer? Get(string scriptKey);
+    void Remove(string scriptKey);
+    void Clear();
+    void Contains(string scriptKey);
+    ScriptContainer At(int index);
+    int Count { get; }
+    IEnumerable<string> GetScriptNames();
+}

PkmnLib.Dynamic/ScriptHandling/ScriptSource.cs

@@ -0,0 +1,52 @@
+namespace PkmnLib.Dynamic.ScriptHandling;
+
+public interface IScriptSource
+{
+    ScriptIterator GetScripts();
+    
+    /// <summary>
+    /// The number of scripts that are expected to be relevant for this source. This generally is
+    /// The number of its own scripts + the number of scripts for any parents.
+    /// </summary>
+    int ScriptCount { get; }
+
+    /// <summary>
+    /// This should add all scripts belonging to this source to the scripts Vec, disregarding its
+    /// potential parents.
+    /// </summary>
+    /// <param name="scripts"></param>
+    void GetOwnScripts(List<IEnumerable<ScriptContainer>> scripts);
+
+    /// <summary>
+    /// This should add all scripts that are relevant to the source the the scripts Vec, including
+    /// everything that belongs to its parents.
+    /// </summary>
+    /// <param name="scripts"></param>
+    void CollectScripts(List<IEnumerable<ScriptContainer>> scripts);
+}
+
+public abstract class ScriptSource : IScriptSource
+{
+    /// <inheritdoc />
+    public ScriptIterator GetScripts()
+    {
+        if (_scripts == null)
+        {
+            _scripts = new List<IEnumerable<ScriptContainer>>(ScriptCount);
+            CollectScripts(_scripts);
+        }
+        return new ScriptIterator(_scripts);
+    }
+
+    /// <inheritdoc />
+    public abstract int ScriptCount { get; }
+
+    /// <inheritdoc />
+    public abstract void GetOwnScripts(List<IEnumerable<ScriptContainer>> scripts);
+
+    /// <inheritdoc />
+    public abstract void CollectScripts(List<IEnumerable<ScriptContainer>> scripts);
+
+    /// <inheritdoc />
+    private List<IEnumerable<ScriptContainer>>? _scripts;
+}

PkmnLib.Dynamic/StaticHelpers.cs

@@ -0,0 +1,15 @@
+namespace PkmnLib.Dynamic;
+
+public static class StaticHelpers
+{
+    /// <summary>
+    /// A function to get the current date and time. This can be replaced in cases where the date and time
+    /// may not be the same as the system time.
+    /// </summary>
+    public static Func<DateTime> DateTimeProvider { get; set; } = () => DateTime.Now;
+    
+    /// <summary>
+    /// Get the current date and time.
+    /// </summary>
+    public static DateTime GetCurrentDateTime() => DateTimeProvider();
+}

PkmnLib.NET.sln

@@ -4,6 +4,10 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PkmnLib.Static", "PkmnLib.S
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PkmnLib.Tests", "PkmnLib.Tests\PkmnLib.Tests.csproj", "{42DE3095-0468-4827-AF5C-691C94BA7F92}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PkmnLib.Dynamic", "PkmnLib.Dynamic\PkmnLib.Dynamic.csproj", "{D0CBA9A9-7288-41B4-B76B-CB4F20036AB2}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PkmnLib.Scripts.Gen7", "PkmnLib.Scripts.Gen7\PkmnLib.Scripts.Gen7.csproj", "{FA5380F0-28CC-4AEC-8963-814B347A89BA}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -18,5 +22,13 @@ Global
 		{42DE3095-0468-4827-AF5C-691C94BA7F92}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{42DE3095-0468-4827-AF5C-691C94BA7F92}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{42DE3095-0468-4827-AF5C-691C94BA7F92}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D0CBA9A9-7288-41B4-B76B-CB4F20036AB2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D0CBA9A9-7288-41B4-B76B-CB4F20036AB2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D0CBA9A9-7288-41B4-B76B-CB4F20036AB2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D0CBA9A9-7288-41B4-B76B-CB4F20036AB2}.Release|Any CPU.Build.0 = Release|Any CPU
+		{FA5380F0-28CC-4AEC-8963-814B347A89BA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{FA5380F0-28CC-4AEC-8963-814B347A89BA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{FA5380F0-28CC-4AEC-8963-814B347A89BA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{FA5380F0-28CC-4AEC-8963-814B347A89BA}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal

PkmnLib.Scripts.Gen7/Gen7Plugin.cs

@@ -0,0 +1,23 @@
+using PkmnLib.Dynamic.ScriptHandling;
+using PkmnLib.Dynamic.ScriptHandling.Registry;
+using PkmnLib.Scripts.Gen7.Libraries;
+
+namespace PkmnLib.Scripts.Gen7;
+
+public class Gen7Plugin : Plugin
+{
+    /// <inheritdoc />
+    public override string Name => "Gen7";
+
+    /// <inheritdoc />
+    public override uint LoadOrder => 0;
+
+    /// <inheritdoc />
+    public override void Register(ScriptRegistry registry)
+    {
+        registry.RegisterAssemblyScripts(typeof(Gen7Plugin).Assembly);
+        registry.RegisterBattleStatCalculator(new Gen7BattleStatCalculator());
+        registry.RegisterDamageCalculator(new Gen7DamageCalculator(true));
+        registry.RegisterMiscLibrary(new Gen7MiscLibrary());
+    }
+}

PkmnLib.Scripts.Gen7/Libraries/Gen7BattleStatCalculator.cs

@@ -0,0 +1,96 @@
+using PkmnLib.Dynamic.Libraries;
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Static;
+
+namespace PkmnLib.Scripts.Gen7.Libraries;
+
+public class Gen7BattleStatCalculator : IBattleStatCalculator
+{
+    /// <inheritdoc />
+    public void CalculateFlatStats(IPokemon pokemon, StatisticSet<uint> stats)
+    {
+        stats.SetStatistic(Statistic.Hp, CalculateHealthStat(pokemon));
+        stats.SetStatistic(Statistic.Attack, CalculateNormalStat(pokemon, Statistic.Attack));
+        stats.SetStatistic(Statistic.Defense, CalculateNormalStat(pokemon, Statistic.Defense));
+        stats.SetStatistic(Statistic.SpecialAttack, CalculateNormalStat(pokemon, Statistic.SpecialAttack));
+        stats.SetStatistic(Statistic.SpecialDefense, CalculateNormalStat(pokemon, Statistic.SpecialDefense));
+        stats.SetStatistic(Statistic.Speed, CalculateNormalStat(pokemon, Statistic.Speed));
+    }
+
+    /// <inheritdoc />
+    public uint CalculateFlatStat(IPokemon pokemon, Statistic stat)
+    {
+        return stat switch
+        {
+            Statistic.Hp => CalculateHealthStat(pokemon),
+            _ => CalculateNormalStat(pokemon, stat)
+        };
+    }
+
+    /// <inheritdoc />
+    public void CalculateBoostedStats(IPokemon pokemon, StatisticSet<uint> stats)
+    {
+        stats.SetStatistic(Statistic.Hp, CalculateBoostedStat(pokemon, Statistic.Hp));
+        stats.SetStatistic(Statistic.Attack, CalculateBoostedStat(pokemon, Statistic.Attack));
+        stats.SetStatistic(Statistic.Defense, CalculateBoostedStat(pokemon, Statistic.Defense));
+        stats.SetStatistic(Statistic.SpecialAttack, CalculateBoostedStat(pokemon, Statistic.SpecialAttack));
+        stats.SetStatistic(Statistic.SpecialDefense, CalculateBoostedStat(pokemon, Statistic.SpecialDefense));
+        stats.SetStatistic(Statistic.Speed, CalculateBoostedStat(pokemon, Statistic.Speed));
+    }
+
+    /// <inheritdoc />
+    public uint CalculateBoostedStat(IPokemon pokemon, Statistic stat)
+    {
+        var flatStat = CalculateFlatStat(pokemon, stat);
+        var boostModifier = GetStatBoostModifier(pokemon, stat);
+        var boostedStat = flatStat * boostModifier;
+        if (boostedStat > uint.MaxValue) boostedStat = uint.MaxValue;
+        return (uint)boostedStat;
+    }
+
+    private uint CalculateHealthStat(IPokemon pokemon)
+    {
+        var baseValue = (ulong)pokemon.Form.BaseStats.Hp;
+        var iv = (ulong)pokemon.IndividualValues.Hp;
+        var ev = (ulong)pokemon.EffortValues.Hp;
+        var level = (ulong)pokemon.Level;
+        var health = (((2 * baseValue + iv + (ev / 4)) * level) / 100) + level + 10;
+        if (health > uint.MaxValue) health = uint.MaxValue;
+        return (uint)health;
+    }
+
+    private uint CalculateNormalStat(IPokemon pokemon, Statistic statistic)
+    {
+        var baseValue = (ulong)pokemon.Form.BaseStats.GetStatistic(statistic);
+        var iv = (ulong)pokemon.IndividualValues.GetStatistic(statistic);
+        var ev = (ulong)pokemon.EffortValues.GetStatistic(statistic);
+        var level = (ulong)pokemon.Level;
+        var unmodified = (((2 * baseValue + iv + (ev / 4)) * level) / 100) + 5;
+        var natureModifier = pokemon.Nature.GetStatModifier(statistic);
+        var modified = (unmodified * natureModifier);
+        if (modified > uint.MaxValue) modified = uint.MaxValue;
+        return (uint)modified;
+    }
+
+    private float GetStatBoostModifier(IPokemon pokemon, Statistic statistic)
+    {
+        var boost = pokemon.StatBoost.GetStatistic(statistic);
+        return boost switch
+        {
+            -6 => 2.0f / 8.0f,
+            -5 => 2.0f / 7.0f,
+            -4 => 2.0f / 6.0f,
+            -3 => 2.0f / 5.0f,
+            -2 => 2.0f / 4.0f,
+            -1 => 2.0f / 3.0f,
+            0 => 1.0f,
+            1 => 3.0f / 2.0f,
+            2 => 4.0f / 2.0f,
+            3 => 5.0f / 2.0f,
+            4 => 6.0f / 2.0f,
+            5 => 7.0f / 2.0f,
+            6 => 8.0f / 2.0f,
+            _ => throw new System.ArgumentException("Stat boost was out of expected range of -6 to 6")
+        };
+    }
+}

PkmnLib.Scripts.Gen7/Libraries/Gen7DamageCalculator.cs

@@ -0,0 +1,155 @@
+using System;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using PkmnLib.Dynamic.Libraries;
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Static;
+using PkmnLib.Static.Moves;
+
+namespace PkmnLib.Scripts.Gen7.Libraries;
+
+public class Gen7DamageCalculator(bool hasRandomness) : IDamageCalculator
+{
+    /// <inheritdoc />
+    public uint GetDamage(IExecutingMove executingMove, IPokemon target, byte hitNumber, HitData hitData)
+    {
+        var category = executingMove.UseMove.Category;
+        if (category == MoveCategory.Status)
+            return 0;
+        if (hitData.Effectiveness == 0)
+            return 0;
+
+        var levelModifier = (2.0f * executingMove.User.Level) / 5.0f + 2.0f;
+        var basePower = (float)hitData.BasePower;
+        var statModifier = GetStatModifier(executingMove, target, hitNumber, hitData);
+        var damageModifier = GetDamageModifier(executingMove, target, hitNumber, hitData);
+
+        var floatDamage = MathF.Floor(levelModifier * basePower);
+        floatDamage = MathF.Floor(floatDamage * statModifier);
+        floatDamage = MathF.Floor(floatDamage / 50.0f) + 2.0f;
+        floatDamage = MathF.Floor(floatDamage * damageModifier);
+        if (executingMove.TargetCount > 1)
+            floatDamage = MathF.Floor(floatDamage * 0.75f);
+
+        if (hitData.IsCritical)
+        {
+            var critModifier = 1.5f;
+            // TODO: script hook to change the critical modifier
+            floatDamage = MathF.Floor(floatDamage * critModifier);
+        }
+
+        if (hasRandomness)
+        {
+            var battle = target.BattleData?.Battle;
+            if (battle == null)
+                throw new InvalidOperationException("Randomness is enabled, but no battle is set.");
+            var random = battle.Random;
+            var randomFactor = random.GetInt(85, 101) / 100.0f;
+            floatDamage = MathF.Floor(floatDamage * randomFactor);
+        }
+
+        if (executingMove.User.Types.Contains(hitData.Type))
+        {
+            var stabModifier = 1.5f;
+            // TODO: script hook to change the STAB modifier
+            floatDamage = MathF.Floor(floatDamage * stabModifier);
+        }
+
+        floatDamage = MathF.Floor(floatDamage * hitData.Effectiveness);
+        uint damage = floatDamage switch
+        {
+            > uint.MaxValue => uint.MaxValue,
+            < 1 => 1,
+            _ => (uint)floatDamage
+        };
+        // TODO: script hook to modify the damage
+        // TODO: script hook to modify incoming damage
+        
+        return damage;
+    }
+
+    /// <inheritdoc />
+    public byte GetBasePower(IExecutingMove executingMove, IPokemon target, byte hitNumber, HitData hitData)
+    {
+        if (executingMove.UseMove.Category == MoveCategory.Status)
+            return 0;
+        var basePower = hitData.BasePower;
+        // TODO: script hook to modify the base power
+        return basePower;
+    }
+
+    /// <inheritdoc />
+    [SuppressMessage("ReSharper", "UnreachableSwitchArmDueToIntegerAnalysis")] // disabled because of the TODO
+    public bool IsCritical(IBattle battle, IExecutingMove executingMove, IPokemon target, byte hitNumber)
+    {
+        if (executingMove.UseMove.Category == MoveCategory.Status)
+            return false;
+        byte critStage = 0;
+        // TODO: script hook to modify the crit stage
+        
+        var random = battle.Random;
+        return critStage switch
+        {
+            0 => random.GetInt(24) == 0,
+            1 => random.GetInt(8) == 0,
+            2 => random.GetInt(2) == 0,
+            _ => true
+        };
+    }
+
+    private static float GetStatModifier(IExecutingMove executingMove, IPokemon target, byte hitNumber, HitData hitData)
+    {
+        var category = executingMove.UseMove.Category;
+        if (category == MoveCategory.Status)
+            return 1;
+
+        var (offensive, defensive) = category switch
+        {
+            MoveCategory.Physical => (Statistic.Attack, Statistic.Defense),
+            _ => (Statistic.SpecialAttack, Statistic.SpecialDefense),
+        };
+
+        // Check if we can bypass the defensive stat boost on the target. We default to this if the
+        // move is critical, and the target has a defensive stat boost of > 0, but a script is
+        // allowed to change this.
+        var bypassDefense = hitData.IsCritical && target.StatBoost.GetStatistic(defensive) > 0;
+        // TODO: script hook
+
+        // Check if we can bypass the offensive stat boost on the user. We default to this if the
+        // move is critical, and the user has an offensive stat boost of < 0, but a script is
+        // allowed to change this.
+        var bypassOffense = hitData.IsCritical && executingMove.User.StatBoost.GetStatistic(offensive) < 0;
+        // TODO: script hook
+
+        var userStats = executingMove.User.BoostedStats;
+        if (bypassOffense)
+            userStats = executingMove.User.FlatStats;
+        var offensiveStat = userStats.GetStatistic(offensive);
+
+        var targetStats = target.BoostedStats;
+        if (bypassDefense)
+            targetStats = target.FlatStats;
+        var defensiveStat = targetStats.GetStatistic(defensive);
+
+        // TODO: script hook to modify the stats above
+
+        var modifier = (float)offensiveStat / defensiveStat;
+        // TODO: script hook to modify the modifier
+
+        return modifier;
+    }
+
+    /// <summary>
+    /// Gets the damage modifier. This is a value that defaults to 1.0, but can be modified by scripts
+    /// to apply a raw modifier to the damage.
+    /// </summary>
+    private static float GetDamageModifier(IExecutingMove executingMove, IPokemon target, byte hitNumber,
+        HitData hitData)
+    {
+        var modifier = 1.0f;
+
+        // TODO: script hook to modify the modifier
+
+        return modifier;
+    }
+}

PkmnLib.Scripts.Gen7/Libraries/Gen7MiscLibrary.cs

@@ -0,0 +1,38 @@
+using System.Collections.Generic;
+using PkmnLib.Dynamic;
+using PkmnLib.Dynamic.Libraries;
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Dynamic.Models.Choices;
+using PkmnLib.Static;
+using PkmnLib.Static.Moves;
+using PkmnLib.Static.Utils;
+
+namespace PkmnLib.Scripts.Gen7.Libraries;
+
+public class Gen7MiscLibrary : IMiscLibrary
+{
+    private readonly IMoveData _struggleData = new MoveDataImpl("struggle", new TypeIdentifier(0),
+        MoveCategory.Physical, 50,
+        255, 255, MoveTarget.Any, 0,
+        new SecondaryEffectImpl(-1, "struggle", new Dictionary<StringKey, object>()), []);
+
+    /// <inheritdoc />
+    public ITurnChoice ReplacementChoice(IPokemon user, byte targetSide, byte targetPosition) =>
+        new MoveChoice(user, new LearnedMoveImpl(_struggleData, MoveLearnMethod.Unknown), targetSide,
+            targetPosition);
+
+    /// <inheritdoc />
+    public TimeOfDay GetTimeOfDay()
+    {
+        var time = StaticHelpers.GetCurrentDateTime();
+        var hour = time.Hour;
+        return hour switch
+        {
+            >= 0 and <= 5 => TimeOfDay.Night,
+            >= 6 and <= 9 => TimeOfDay.Morning,
+            >= 10 and <= 16 => TimeOfDay.Day,
+            17 => TimeOfDay.Evening,
+            _ => TimeOfDay.Night
+        };
+    }
+}

PkmnLib.Scripts.Gen7/PkmnLib.Scripts.Gen7.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netstandard2.1</TargetFramework>
+        <Nullable>enable</Nullable>
+        <LangVersion>12</LangVersion>
+    </PropertyGroup>
+
+    <ItemGroup>
+      <ProjectReference Include="..\PkmnLib.Dynamic\PkmnLib.Dynamic.csproj" />
+      <ProjectReference Include="..\PkmnLib.Static\PkmnLib.Static.csproj" />
+    </ItemGroup>
+
+</Project>

PkmnLib.Static/StatisticSet.cs

@@ -1,3 +1,5 @@
+using System.Diagnostics.CodeAnalysis;
+
 namespace PkmnLib.Static;
 
 /// <summary>
@@ -79,10 +81,13 @@ public record StatisticSet<T> : ImmutableStatisticSet<T>
     {
     }
 
+    protected T Add(T a, T b) => (T)Convert.ChangeType(Convert.ToInt32(a) + Convert.ToInt32(b), typeof(T));
+    protected T Subtract(T a, T b) => (T)Convert.ChangeType(Convert.ToInt32(a) - Convert.ToInt32(b), typeof(T));
+
     /// <summary>
     /// Modifies a statistic in the set.
     /// </summary>
-    public void SetStatistic(Statistic stat, T value)
+    public virtual void SetStatistic(Statistic stat, T value)
     {
         switch (stat)
         {
@@ -112,64 +117,186 @@ public record StatisticSet<T> : ImmutableStatisticSet<T>
     /// <summary>
     /// Increases a statistic in the set by a value.
     /// </summary>
-    public void IncreaseStatistic(Statistic stat, T value)
+    public virtual bool IncreaseStatistic(Statistic stat, T value)
     {
         switch (stat)
         {
             case Statistic.Hp:
-                Hp = (T)Convert.ChangeType(Convert.ToInt32(Hp) + Convert.ToInt32(value), typeof(T));
+                Hp = Add(Hp, value);
                 break;
             case Statistic.Attack:
-                Attack = (T)Convert.ChangeType(Convert.ToInt32(Attack) + Convert.ToInt32(value), typeof(T));
+                Attack = Add(Attack, value);
                 break;
             case Statistic.Defense:
-                Defense = (T)Convert.ChangeType(Convert.ToInt32(Defense) + Convert.ToInt32(value), typeof(T));
+                Defense = Add(Defense, value);
                 break;
             case Statistic.SpecialAttack:
-                SpecialAttack =
+                SpecialAttack = Add(SpecialAttack, value);
-                    (T)Convert.ChangeType(Convert.ToInt32(SpecialAttack) + Convert.ToInt32(value), typeof(T));
                 break;
             case Statistic.SpecialDefense:
-                SpecialDefense =
+                SpecialDefense = Add(SpecialDefense, value);
-                    (T)Convert.ChangeType(Convert.ToInt32(SpecialDefense) + Convert.ToInt32(value), typeof(T));
                 break;
             case Statistic.Speed:
-                Speed = (T)Convert.ChangeType(Convert.ToInt32(Speed) + Convert.ToInt32(value), typeof(T));
+                Speed = Add(Speed, value);
                 break;
             default:
                 throw new ArgumentException("Invalid statistic.");
         }
+
+        return true;
     }
 
     /// <summary>
     /// Decreases a statistic in the set by a value.
     /// </summary>
-    public void DecreaseStatistic(Statistic stat, T value)
+    public virtual bool DecreaseStatistic(Statistic stat, T value)
     {
         switch (stat)
         {
             case Statistic.Hp:
-                Hp = (T)Convert.ChangeType(Convert.ToInt32(Hp) - Convert.ToInt32(value), typeof(T));
+                Hp = Subtract(Hp, value);
                 break;
             case Statistic.Attack:
-                Attack = (T)Convert.ChangeType(Convert.ToInt32(Attack) - Convert.ToInt32(value), typeof(T));
+                Attack = Subtract(Attack, value);
                 break;
             case Statistic.Defense:
-                Defense = (T)Convert.ChangeType(Convert.ToInt32(Defense) - Convert.ToInt32(value), typeof(T));
+                Defense = Subtract(Defense, value);
                 break;
             case Statistic.SpecialAttack:
-                SpecialAttack =
+                SpecialAttack = Subtract(SpecialAttack, value);
-                    (T)Convert.ChangeType(Convert.ToInt32(SpecialAttack) - Convert.ToInt32(value), typeof(T));
                 break;
             case Statistic.SpecialDefense:
-                SpecialDefense =
+                SpecialDefense = Subtract(SpecialDefense, value);
-                    (T)Convert.ChangeType(Convert.ToInt32(SpecialDefense) - Convert.ToInt32(value), typeof(T));
                 break;
             case Statistic.Speed:
-                Speed = (T)Convert.ChangeType(Convert.ToInt32(Speed) - Convert.ToInt32(value), typeof(T));
+                Speed = Subtract(Speed, value);
                 break;
             default:
                 throw new ArgumentException("Invalid statistic.");
         }
+
+        return true;
+    }
+}
+
+/// <summary>
+/// A set of statistics that can be changed, but are clamped to a minimum and maximum value.
+/// </summary>
+public abstract record ClampedStatisticSet<T> : StatisticSet<T>
+    where T : struct, IComparable<T>
+{
+    /// <inheritdoc />
+    [SuppressMessage("ReSharper", "VirtualMemberCallInConstructor")]
+    protected ClampedStatisticSet(T hp, T attack, T defense, T specialAttack, T specialDefense, T speed) : base(hp,
+        attack, defense, specialAttack, specialDefense, speed)
+    {
+        if (Min.CompareTo(Max) > 0)
+            throw new ArgumentException("Minimum value must be less than or equal to maximum value.");
+        Hp = Clamp(Hp, Min, Max);
+        Attack = Clamp(Attack, Min, Max);
+        Defense = Clamp(Defense, Min, Max);
+        SpecialAttack = Clamp(SpecialAttack, Min, Max);
+        SpecialDefense = Clamp(SpecialDefense, Min, Max);
+        Speed = Clamp(Speed, Min, Max);
+    }
+
+    private static T Clamp(T value, T min, T max)
+    {
+        if (value.CompareTo(min) < 0)
+            return min;
+        if (value.CompareTo(max) > 0)
+            return max;
+
+        return value;
+    }
+
+    /// <summary>
+    /// The minimum value for the statistics.
+    /// </summary>
+    protected abstract T Min { get; }
+    /// <summary>
+    /// The maximum value for the statistics.
+    /// </summary>
+    protected abstract T Max { get; }
+
+    /// <inheritdoc />
+    public override void SetStatistic(Statistic stat, T value) => base.SetStatistic(stat, Clamp(value, Min, Max));
+
+    /// <inheritdoc />
+    public override bool IncreaseStatistic(Statistic stat, T value)
+    {
+        var current = GetStatistic(stat);
+        var newValue = Add(current, value);
+        if (newValue.CompareTo(Max) > 0)
+            value = Subtract(Max, current);
+        if (value.CompareTo(default) == 0)
+            return false;
+        return base.IncreaseStatistic(stat, value);
+    }
+
+    /// <inheritdoc />
+    public override bool DecreaseStatistic(Statistic stat, T value)
+    {
+        var current = GetStatistic(stat);
+        var newValue = Subtract(current, value);
+        if (newValue.CompareTo(Min) < 0)
+            value = Subtract(current, Min);
+        if (value.CompareTo(default) == 0)
+            return false;
+        return base.DecreaseStatistic(stat, value);
+    }
+}
+
+/// <summary>
+/// A set of statistics that can be changed, but are clamped to a minimum and maximum value of -6 and 6.
+/// </summary>
+public record StatBoostStatisticSet : ClampedStatisticSet<sbyte>
+{
+    /// <inheritdoc />
+    protected override sbyte Min => -6;
+
+    /// <inheritdoc />
+    protected override sbyte Max => 6;
+
+    /// <inheritdoc cref="StatBoostStatisticSet"/>
+    public StatBoostStatisticSet(sbyte hp, sbyte attack, sbyte defense, sbyte specialAttack, sbyte specialDefense,
+        sbyte speed) : base(hp, attack, defense, specialAttack, specialDefense, speed)
+    {
+    }
+}
+
+/// <summary>
+/// A set of statistics that can be changed, but are clamped to a minimum and maximum value of 0 and 31.
+/// </summary>
+public record IndividualValueStatisticSet : ClampedStatisticSet<byte>
+{
+    /// <inheritdoc />
+    protected override byte Min => 0;
+
+    /// <inheritdoc />
+    protected override byte Max => 31;
+
+    /// <inheritdoc cref="IndividualValueStatisticSet"/>
+    public IndividualValueStatisticSet(byte hp, byte attack, byte defense, byte specialAttack, byte specialDefense,
+        byte speed) : base(hp, attack, defense, specialAttack, specialDefense, speed)
+    {
+    }
+}
+
+/// <summary>
+/// A set of statistics that can be changed, but are clamped to a minimum and maximum value of 0 and 252.
+/// </summary>
+public record EffortValueStatisticSet : ClampedStatisticSet<byte>
+{
+    /// <inheritdoc />
+    protected override byte Min => 0;
+
+    /// <inheritdoc />
+    protected override byte Max => 252;
+
+    /// <inheritdoc cref="EffortValueStatisticSet"/>
+    public EffortValueStatisticSet(byte hp, byte attack, byte defense, byte specialAttack, byte specialDefense,
+        byte speed) : base(hp, attack, defense, specialAttack, specialDefense, speed)
+    {
     }
 }