Basic kill tracking

core/src/io/anuke/mindustry/content/Blocks.java

@@ -1194,7 +1194,7 @@ public class Blocks implements ContentList{
             rotateSpeed = 1.4f;
             attribute = Attribute.water;
 
-            consumes.power(0.90f);
+            consumes.power(1f);
         }};
 
         cultivator = new Cultivator("cultivator"){{

core/src/io/anuke/mindustry/entities/traits/DamageTrait.java

@@ -1,5 +1,11 @@
 package io.anuke.mindustry.entities.traits;
 
+import io.anuke.mindustry.entities.type.*;
+
 public interface DamageTrait{
     float damage();
+
+    default void killed(Entity other){
+
+    }
 }

core/src/io/anuke/mindustry/entities/traits/KillerTrait.java

@@ -0,0 +1,5 @@
+package io.anuke.mindustry.entities.traits;
+
+public interface KillerTrait{
+    void killed(Entity other);
+}

core/src/io/anuke/mindustry/entities/type/Bullet.java

@@ -134,6 +134,13 @@ public class Bullet extends SolidEntity implements DamageTrait, ScaleTrait, Pool
         return 1f;
     }
 
+    @Override
+    public void killed(Entity other){
+        if(owner instanceof KillerTrait){
+            ((KillerTrait)owner).killed(other);
+        }
+    }
+
     @Override
     public void absorb(){
         supressCollision = true;

core/src/io/anuke/mindustry/entities/type/DestructibleEntity.java

@@ -15,8 +15,12 @@ public abstract class DestructibleEntity extends SolidEntity implements HealthTr
     @Override
     public void collision(SolidTrait other, float x, float y){
         if(other instanceof DamageTrait){
+            boolean wasDead = isDead();
             onHit(other);
             damage(((DamageTrait)other).damage());
+            if(!wasDead && isDead()){
+                ((DamageTrait)other).killed(this);
+            }
         }
     }