Tested and fixed Steam achievements

core/src/mindustry/world/Block.java

@@ -166,6 +166,8 @@ public class Block extends UnlockableContent implements Senseable{
     public float baseExplosiveness = 0f;
     /** bullet that this block spawns when destroyed */
     public @Nullable BulletType destroyBullet = null;
+    /** liquid used for lighting */
+    public @Nullable Liquid lightLiquid;
     /** whether cracks are drawn when this block is damaged */
     public boolean drawCracks = true;
     /** whether rubble is created when this block is destroyed */

core/src/mindustry/world/blocks/defense/ShockwaveTower.java

@@ -31,6 +31,7 @@ public class ShockwaveTower extends Block{
     public Sound shootSound = Sounds.bang;
     public Color waveColor = Pal.accent, heatColor = Pal.turretHeat, shapeColor = Color.valueOf("f29c83");
     public float cooldownMultiplier = 1f;
+    public Effect hitEffect = Fx.hitSquaresColor;
     public Effect waveEffect = Fx.pointShockwave;
 
     //TODO switch to drawers eventually or something
@@ -90,6 +91,7 @@ public class ShockwaveTower extends Block{
                         }else{
                             target.remove();
                         }
+                        hitEffect.at(target.x, target.y, waveColor);
                     }
 
                     if(team == state.rules.defaultTeam){