Many things

core/src/io/anuke/mindustry/game/EventType.java

@@ -129,6 +129,8 @@ public class EventType{
         }
     }
 
+    /** Called right before a block is destroyed.
+     * The tile entity of the tile in this event cannot be null when this happens.*/
     public static class BlockDestroyEvent{
         public final Tile tile;
 

core/src/io/anuke/mindustry/game/Teams.java

@@ -1,5 +1,6 @@
 package io.anuke.mindustry.game;
 
+import io.anuke.annotations.Annotations.Struct;
 import io.anuke.arc.collection.*;
 import io.anuke.mindustry.Vars;
 import io.anuke.mindustry.world.Tile;
@@ -43,6 +44,7 @@ public class Teams{
 
     public class TeamData{
         public final ObjectSet<Tile> cores = new ObjectSet<>();
+        public final LongQueue brokenBlocks = new LongQueue();
         public final EnumSet<Team> enemies;
         public final Team team;
 
@@ -51,4 +53,11 @@ public class Teams{
             this.enemies = enemies;
         }
     }
+
+    /** Represents a block made by this team that was destroyed somewhere on the map.
+     * This does not include deconstructed blocks.*/
+    @Struct
+    public class BrokenBlockStruct{
+        public short x, y, rotation, block;
+    }
 }