Initial work on scripts

PkmnLib.Dynamic/ScriptHandling/Script.cs

@@ -1,6 +1,36 @@
+using PkmnLib.Dynamic.Libraries;
+using PkmnLib.Dynamic.Models;
+using PkmnLib.Static.Utils;
+
 namespace PkmnLib.Dynamic.ScriptHandling;
 
 public abstract class Script
 {
-    
+    private bool _markedForDeletion;
+    private int _suppressCount;
+
+    public abstract string Name { get; }
+    public bool MarkForDeletion() => _markedForDeletion = true;
+    public bool IsMarkedForDeletion() => _markedForDeletion;
+    public int SuppressCount() => _suppressCount;
+    public bool IsSuppressed() => _suppressCount > 0;
+    public void Suppress() => _suppressCount++;
+    public void Unsuppress() => _suppressCount--;
+
+    public virtual void Stack()
+    {
+    }
+
+    public virtual void OnRemove()
+    {
+    }
+
+    public virtual void OnInitialize(IDynamicLibrary library, IReadOnlyDictionary<StringKey, object> parameters)
+    {
+    }
+
+    public virtual void ChangeStabModifier(IExecutingMove executingMove, IPokemon target, byte hitNumber,
+        ref float modifier)
+    {
+    }
 }

PkmnLib.Dynamic/ScriptHandling/ScriptContainer.cs

@@ -1,4 +1,5 @@
 using System.Collections;
+using System.Diagnostics.CodeAnalysis;
 
 namespace PkmnLib.Dynamic.ScriptHandling;
 
@@ -6,7 +7,14 @@ public class ScriptContainer : IEnumerable<ScriptContainer>
 {
     private Script? _script = null;
 
+    [MemberNotNullWhen(false, nameof(ScriptHandling.Script))]
     public bool IsEmpty => _script is null;
+    
+    public Script? Script
+    {
+        get => _script;
+        set => _script = value;
+    }
 
     /// <inheritdoc />
     public IEnumerator<ScriptContainer> GetEnumerator()

PkmnLib.Dynamic/ScriptHandling/ScriptExecution.cs

@@ -0,0 +1,16 @@
+namespace PkmnLib.Dynamic.ScriptHandling;
+
+public static class ScriptExecution
+{
+    public static void RunScriptHook(this IScriptSource source, Action<Script> hook)
+    {
+        var iterator = source.GetScripts();
+        foreach (var container in iterator)
+        {
+            if (container.IsEmpty)
+                continue;
+            var script = container.Script;
+            hook(script);
+        }
+    }
+}

PkmnLib.Plugin.Gen7/Libraries/Gen7DamageCalculator.cs

@@ -3,6 +3,7 @@ using System.Diagnostics.CodeAnalysis;
 using System.Linq;
 using PkmnLib.Dynamic.Libraries;
 using PkmnLib.Dynamic.Models;
+using PkmnLib.Dynamic.ScriptHandling;
 using PkmnLib.Static;
 using PkmnLib.Static.Moves;
 
@@ -51,7 +52,8 @@ public class Gen7DamageCalculator(bool hasRandomness) : IDamageCalculator
         if (executingMove.User.Types.Contains(hitData.Type))
         {
             var stabModifier = 1.5f;
-            // TODO: script hook to change the STAB modifier
+            executingMove.RunScriptHook(script =>
+                script.ChangeStabModifier(executingMove, target, hitNumber, ref stabModifier));
             floatDamage = MathF.Floor(floatDamage * stabModifier);
         }
 
@@ -64,7 +66,7 @@ public class Gen7DamageCalculator(bool hasRandomness) : IDamageCalculator
         };
         // TODO: script hook to modify the damage
         // TODO: script hook to modify incoming damage
-        
+
         return damage;
     }
 
@@ -86,7 +88,7 @@ public class Gen7DamageCalculator(bool hasRandomness) : IDamageCalculator
             return false;
         byte critStage = 0;
         // TODO: script hook to modify the crit stage
-        
+
         var random = battle.Random;
         return critStage switch
         {