blockstate, more block events, command preprocess event.

Minecraft.Server.FourKit/Event/Block/BlockPistonRetractEvent.cs

@@ -0,0 +1,30 @@
+namespace Minecraft.Server.FourKit.Event.Block;
+
+using Minecraft.Server.FourKit.Block;
+
+/// <summary>
+/// Called when a piston retracts.
+/// </summary>
+public class BlockPistonRetractEvent : BlockPistonEvent
+{
+    internal BlockPistonRetractEvent(Block block, BlockFace direction)
+        : base(block, direction)
+    {
+    }
+
+    /// <summary>
+    /// Gets the location where the possible moving block might be if the
+    /// retracting piston is sticky.
+    /// </summary>
+    /// <returns>The possible location of the possibly moving block.</returns>
+    public Location getRetractLocation()
+    {
+        var block = getBlock();
+        var dir = getDirection();
+        return new Location(
+            block.getWorld(),
+            block.getX() + dir.getModX() * 2,
+            block.getY() + dir.getModY() * 2,
+            block.getZ() + dir.getModZ() * 2);
+    }
+}