Make possible cancelling and editing explosion when there is no entity

src/main/java/cn/nukkit/event/level/ExplodeEvent.java

@@ -0,0 +1,53 @@
+package cn.nukkit.event.level;
+
+import cn.nukkit.block.Block;
+import cn.nukkit.event.Cancellable;
+import cn.nukkit.event.HandlerList;
+import cn.nukkit.level.Level;
+import cn.nukkit.level.Position;
+
+import java.util.List;
+
+/**
+ * author: SergeyDertan
+ * Nukkit Project
+ */
+public class ExplodeEvent extends LevelEvent implements Cancellable {
+
+ private static final HandlerList handlers = new HandlerList();
+
+ protected final Position position;
+ protected List<Block> blocks;
+ protected double yield;
+
+ public static HandlerList getHandlers() {
+ return handlers;
+ }
+
+ public ExplodeEvent(Level level, Position position, List<Block> blocks, double yield) {
+ super(level);
+ this.position = position;
+ this.blocks = blocks;
+ this.yield = yield;
+ }
+
+ public Position getPosition() {
+ return this.position;
+ }
+
+ public List<Block> getBlockList() {
+ return this.blocks;
+ }
+
+ public void setBlockList(List<Block> blocks) {
+ this.blocks = blocks;
+ }
+
+ public double getYield() {
+ return this.yield;
+ }
+
+ public void setYield(double yield) {
+ this.yield = yield;
+ }
+}

src/main/java/cn/nukkit/level/Explosion.java

@@ -14,6 +14,7 @@
 import cn.nukkit.event.entity.EntityDamageEvent;
 import cn.nukkit.event.entity.EntityDamageEvent.DamageCause;
 import cn.nukkit.event.entity.EntityExplodeEvent;
+import cn.nukkit.event.level.ExplodeEvent;
 import cn.nukkit.inventory.InventoryHolder;
 import cn.nukkit.item.Item;
 import cn.nukkit.item.ItemBlock;
@@ -133,6 +134,15 @@ public boolean explodeB() {
  yield = ev.getYield();
  this.affectedBlocks = ev.getBlockList();
  }
+ } else {
+ ExplodeEvent ev = new ExplodeEvent(this.level, this.source, this.affectedBlocks, yield);
+ this.level.getServer().getPluginManager().callEvent(ev);
+ if (ev.isCancelled()) {
+ return false;
+ } else {
+ yield = ev.getYield();
+ this.affectedBlocks = ev.getBlockList();
+ }
  }
 
  double explosionSize = this.size * 2d;