SPIGOT-6562: Add more specific sculk sensor event

By: md_5 <git@md-5.net>

paper-api/src/main/java/org/bukkit/event/block/BlockReceiveGameEvent.java

@@ -0,0 +1,70 @@
+package org.bukkit.event.block;
+
+import org.bukkit.GameEvent;
+import org.bukkit.block.Block;
+import org.bukkit.entity.Entity;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Called when a Sculk sensor receives a game event and hence might activate.
+ *
+ * Will be called cancelled if the block's default behavior is to ignore the
+ * event.
+ */
+public class BlockReceiveGameEvent extends BlockEvent implements Cancellable {
+
+    private static final HandlerList handlers = new HandlerList();
+    private final GameEvent event;
+    private final Entity entity;
+    private boolean cancelled;
+
+    public BlockReceiveGameEvent(@NotNull GameEvent event, @NotNull Block block, @Nullable Entity entity) {
+        super(block);
+        this.event = event;
+        this.entity = entity;
+    }
+
+    /**
+     * Get the underlying event.
+     *
+     * @return the event
+     */
+    @NotNull
+    public GameEvent getEvent() {
+        return event;
+    }
+
+    /**
+     * Get the entity which triggered this event, if present.
+     *
+     * @return triggering entity or null
+     */
+    @Nullable
+    public Entity getEntity() {
+        return entity;
+    }
+
+    @Override
+    public void setCancelled(boolean cancel) {
+        this.cancelled = cancel;
+    }
+
+    @Override
+    public boolean isCancelled() {
+        return cancelled;
+    }
+
+    @NotNull
+    @Override
+    public HandlerList getHandlers() {
+        return handlers;
+    }
+
+    @NotNull
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
+}