More abilities

Plugins/PkmnLib.Plugin.Gen7/Scripts/Abilities/SpeedModifierInWeather.cs

@@ -0,0 +1,41 @@
+using PkmnLib.Static.Utils;
+
+namespace PkmnLib.Plugin.Gen7.Scripts.Abilities;
+
+[Script(ScriptCategory.Ability, "speed_modifier_in_weather")]
+public class SpeedModifierInWeather : Script
+{
+    private StringKey _weather;
+    private float _modifier;
+
+    /// <inheritdoc />
+    public override void OnInitialize(IReadOnlyDictionary<StringKey, object?>? parameters)
+    {
+        if (parameters is null)
+            throw new ArgumentNullException(nameof(parameters));
+
+        if (!parameters.TryGetValue("weather", out var weatherObj) || weatherObj is not string weatherStr)
+            throw new ArgumentException("Parameter 'weather' is required and must be a string.", nameof(parameters));
+        if (!parameters.TryGetValue("modifier", out var modifierObj))
+            throw new ArgumentException("Parameter 'modifier' is required", nameof(parameters));
+        if (modifierObj is not float modifier && modifierObj is not int)
+            throw new ArgumentException("Parameter 'modifier' must be a float or int.", nameof(parameters));
+        var weatherModifier = modifierObj is float modFloat ? modFloat : (int)modifierObj;
+
+        _weather = weatherStr;
+        _modifier = weatherModifier;
+    }
+
+    /// <inheritdoc />
+    public override void ChangeSpeed(ITurnChoice choice, ref uint speed)
+    {
+        var battle = choice.User.BattleData?.Battle;
+        if (battle is null)
+            return;
+        var weather = battle.WeatherName;
+        if (weather == _weather)
+        {
+            speed = speed.MultiplyOrMax(_modifier);
+        }
+    }
+}