Add BlockBreakBlockEvent

paper-api/src/main/java/io/papermc/paper/event/block/BlockBreakBlockEvent.java

@@ -0,0 +1,57 @@
+package io.papermc.paper.event.block;
+
+import java.util.List;
+import org.bukkit.block.Block;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.block.BlockExpEvent;
+import org.bukkit.inventory.ItemStack;
+import org.jetbrains.annotations.ApiStatus;
+import org.jspecify.annotations.NullMarked;
+
+/**
+ * Called when a block forces another block to break and drop items.
+ * <p>
+ * Currently called for piston's and liquid flows.
+ */
+@NullMarked
+public class BlockBreakBlockEvent extends BlockExpEvent {
+
+    private static final HandlerList HANDLER_LIST = new HandlerList();
+
+    private final Block source;
+    private final List<ItemStack> drops;
+
+    @ApiStatus.Internal
+    public BlockBreakBlockEvent(final Block block, final Block source, final List<ItemStack> drops) {
+        super(block, 0);
+        this.source = source;
+        this.drops = drops;
+    }
+
+    /**
+     * Gets a mutable list of drops for this event
+     *
+     * @return the drops
+     */
+    public List<ItemStack> getDrops() {
+        return this.drops;
+    }
+
+    /**
+     * Gets the block that cause this (e.g. a piston, or adjacent liquid)
+     *
+     * @return the source
+     */
+    public Block getSource() {
+        return this.source;
+    }
+
+    @Override
+    public HandlerList getHandlers() {
+        return HANDLER_LIST;
+    }
+
+    public static HandlerList getHandlerList() {
+        return HANDLER_LIST;
+    }
+}