basic "sabotage" event

MiraAPI/Events/Vanilla/UpdateSystemEvent.cs

@@ -0,0 +1,28 @@
+namespace MiraAPI.Events.Vanilla;
+
+/// <summary>
+/// Cancelable event that is invoked before a system is updated. Usually used for sabotage events.
+/// </summary>
+public class UpdateSystemEvent : MiraCancelableEvent
+{
+    /// <summary>
+    /// Gets the type of system that will be updated.
+    /// </summary>
+    public SystemTypes SystemType { get; }
+
+    /// <summary>
+    /// Gets the byte amount the system is being updated by.
+    /// </summary>
+    public byte Amount { get; }
+
+    /// <summary>
+    ///  Initializes a new instance of the <see cref="UpdateSystemEvent"/> class.
+    /// </summary>
+    /// <param name="systemType">The SystemType being updated.</param>
+    /// <param name="amount">Amount to update System to.</param>
+    public UpdateSystemEvent(SystemTypes systemType, byte amount)
+    {
+        SystemType = systemType;
+        Amount = amount;
+    }
+}

MiraAPI/Patches/Events/HudButtonEventPatches.cs

@@ -7,6 +7,7 @@ namespace MiraAPI.Patches.Events;
 /// <summary>
 /// Patch for button related MiraEvents.
 /// </summary>
+[HarmonyPatch]
 public static class HudButtonEventPatches
 {
     [HarmonyPrefix]

MiraAPI/Patches/Events/SabotageEventPatches.cs

@@ -0,0 +1,21 @@
+using HarmonyLib;
+using MiraAPI.Events;
+using MiraAPI.Events.Vanilla;
+
+namespace MiraAPI.Patches.Events;
+
+/// <summary>
+/// Used for patching sabotage/system related MiraEvents.
+/// </summary>
+[HarmonyPatch]
+public static class SabotageEventPatches
+{
+    [HarmonyPrefix]
+    [HarmonyPatch(typeof(ShipStatus), nameof(ShipStatus.RpcUpdateSystem), typeof(SystemTypes), typeof(byte))]
+    public static bool ShipStatusRpcUpdateSystemPrefix(ShipStatus __instance, SystemTypes systemType, byte amount)
+    {
+        var @event = new UpdateSystemEvent(systemType, amount);
+        MiraEventManager.InvokeEvent(@event);
+        return !@event.IsCancelled;
+    }
+}