diff --git a/annotations/src/main/java/io/anuke/annotations/SerializeAnnotationProcessor.java b/annotations/src/main/java/io/anuke/annotations/SerializeAnnotationProcessor.java
index 358a52bbbf..4f5934fdfd 100644
--- a/annotations/src/main/java/io/anuke/annotations/SerializeAnnotationProcessor.java
+++ b/annotations/src/main/java/io/anuke/annotations/SerializeAnnotationProcessor.java
@@ -48,14 +48,10 @@ public class SerializeAnnotationProcessor extends AbstractProcessor{
 
             TypeName jsonType = ClassName.bestGuess("io.anuke.arc.util.serialization.Json");
             TypeName jsonValueType = ClassName.bestGuess("io.anuke.arc.util.serialization.JsonValue");
-            TypeName ubJsonWriterType = ClassName.bestGuess("io.anuke.arc.util.serialization.UBJsonWriter");
-            TypeName ubJsonReaderType = ClassName.bestGuess("io.anuke.arc.util.serialization.UBJsonReader");
 
             classBuilder.addField(jsonType, "bjson", Modifier.STATIC, Modifier.PRIVATE);
-            classBuilder.addField(ubJsonReaderType, "bjsonReader", Modifier.STATIC, Modifier.PRIVATE);
             classBuilder.addStaticBlock(CodeBlock.builder()
             .addStatement("bjson = new " + jsonType + "()")
-            .addStatement("bjsonReader = new " + ubJsonReaderType + "()")
             .build());
 
             for(TypeElement elem : elements){
diff --git a/core/src/io/anuke/mindustry/content/Blocks.java b/core/src/io/anuke/mindustry/content/Blocks.java
index d95fa55176..dc287849be 100644
--- a/core/src/io/anuke/mindustry/content/Blocks.java
+++ b/core/src/io/anuke/mindustry/content/Blocks.java
@@ -30,7 +30,7 @@ public class Blocks implements ContentList{
     public static Block
 
     //environment
-    air, part, spawn, deepwater, water, taintedWater, tar, stone, craters, charr, sand, darksand, ice, snow, darksandTaintedWater,
+    air, spawn, deepwater, water, taintedWater, tar, stone, craters, charr, sand, darksand, ice, snow, darksandTaintedWater,
     holostone, rocks, sporerocks, icerocks, cliffs, sporePine, pine, shrubs, whiteTree, whiteTreeDead, sporeCluster,
     iceSnow, sandWater, darksandWater, duneRocks, sandRocks, moss, sporeMoss, shale, shaleRocks, shaleBoulder, grass, salt,
     metalFloor, metalFloorDamaged, metalFloor2, metalFloor3, metalFloor5, ignarock, magmarock, hotrock, snowrocks, rock, snowrock, saltRocks,
@@ -109,7 +109,12 @@ public class Blocks implements ContentList{
             }
         };
 
-        part = new BlockPart();
+        //create special blockpart variants
+        for(int dx = 0; dx < BlockPart.maxSize; dx++){
+            for(int dy = 0; dy < BlockPart.maxSize; dy++){
+                new BlockPart(dx - BlockPart.maxSize/2, dy - BlockPart.maxSize/2);
+            }
+        }
 
         spawn = new Block("spawn");
 
diff --git a/core/src/io/anuke/mindustry/core/ContentLoader.java b/core/src/io/anuke/mindustry/core/ContentLoader.java
index 72df701ddc..c7af6e9154 100644
--- a/core/src/io/anuke/mindustry/core/ContentLoader.java
+++ b/core/src/io/anuke/mindustry/core/ContentLoader.java
@@ -90,17 +90,12 @@ public class ContentLoader{
         for(Array<Content> arr : contentMap){
             for(int i = 0; i < arr.size; i++){
                 int id = arr.get(i).id;
-                if(id < 0) id += 256;
                 if(id != i){
                     throw new IllegalArgumentException("Out-of-order IDs for content '" + arr.get(i) + "' (expected " + i + " but got " + id + ")");
                 }
             }
         }
 
-        if(blocks().size >= 256){
-            throw new ImpendingDoomException("THE TIME HAS COME. More than 256 blocks have been created.");
-        }
-
         if(verbose){
             Log.info("--- CONTENT INFO ---");
             for(int k = 0; k < contentMap.length; k++){
@@ -129,7 +124,7 @@ public class ContentLoader{
     /** Loads block colors. */
     public void loadColors(){
         Pixmap pixmap = new Pixmap(files.internal("sprites/block_colors.png"));
-        for(int i = 0; i < 256; i++){
+        for(int i = 0; i < pixmap.getWidth(); i++){
             if(blocks().size > i){
                 int color = pixmap.getPixel(i, 0);
 
@@ -170,8 +165,6 @@ public class ContentLoader{
     }
 
     public <T extends Content> T getByID(ContentType type, int id){
-        //offset negative values by 256, as they are probably a product of byte overflow
-        if(id < 0) id += 256;
 
         if(temporaryMapper != null && temporaryMapper[type.ordinal()] != null && temporaryMapper[type.ordinal()].length != 0){
             if(temporaryMapper[type.ordinal()].length <= id || temporaryMapper[type.ordinal()][id] == null){
@@ -243,10 +236,4 @@ public class ContentLoader{
         TypeTrait.registerType(Bullet.class, Bullet::new);
         TypeTrait.registerType(Lightning.class, Lightning::new);
     }
-
-    private class ImpendingDoomException extends RuntimeException{
-        ImpendingDoomException(String s){
-            super(s);
-        }
-    }
 }
diff --git a/core/src/io/anuke/mindustry/core/World.java b/core/src/io/anuke/mindustry/core/World.java
index 1645d4b70b..d309942f80 100644
--- a/core/src/io/anuke/mindustry/core/World.java
+++ b/core/src/io/anuke/mindustry/core/World.java
@@ -97,6 +97,12 @@ public class World implements ApplicationListener{
         return tiles[x][y];
     }
 
+    public @Nullable Tile ltile(int x, int y){
+        Tile tile = tile(x, y);
+        if(tile == null) return null;
+        return tile.block().linked(tile);
+    }
+
     public Tile rawTile(int x, int y){
         return tiles[x][y];
     }
diff --git a/core/src/io/anuke/mindustry/editor/EditorTile.java b/core/src/io/anuke/mindustry/editor/EditorTile.java
index 1af8d2ffe8..021664ce06 100644
--- a/core/src/io/anuke/mindustry/editor/EditorTile.java
+++ b/core/src/io/anuke/mindustry/editor/EditorTile.java
@@ -76,7 +76,7 @@ public class EditorTile extends Tile{
 
     @Override
     public void setOverlayID(byte ore){
-        byte previous = getOverlayID();
+        byte previous = overlayID();
         if(previous == ore) return;
         super.setOverlayID(ore);
         op(TileOp.get(x, y, (byte)OpType.ore.ordinal(), previous, ore));
diff --git a/core/src/io/anuke/mindustry/entities/type/TileEntity.java b/core/src/io/anuke/mindustry/entities/type/TileEntity.java
index 1f77fd475b..313307c777 100644
--- a/core/src/io/anuke/mindustry/entities/type/TileEntity.java
+++ b/core/src/io/anuke/mindustry/entities/type/TileEntity.java
@@ -6,8 +6,7 @@ import io.anuke.arc.collection.Array;
 import io.anuke.arc.collection.ObjectSet;
 import io.anuke.arc.math.geom.Point2;
 import io.anuke.arc.math.geom.Vector2;
-import io.anuke.arc.util.Interval;
-import io.anuke.arc.util.Time;
+import io.anuke.arc.util.*;
 import io.anuke.mindustry.entities.EntityGroup;
 import io.anuke.mindustry.entities.bullet.Bullet;
 import io.anuke.mindustry.entities.impl.BaseEntity;
@@ -116,10 +115,28 @@ public class TileEntity extends BaseEntity implements TargetTrait, HealthTrait{
 
     @CallSuper
     public void write(DataOutput stream) throws IOException{
+        stream.writeShort((short)health);
+        stream.writeByte(Pack.byteByte(tile.getTeamID(), tile.getRotation())); //team + rotation
+        if(items != null) items.write(stream);
+        if(power != null) power.write(stream);
+        if(liquids != null) liquids.write(stream);
+        if(cons != null) cons.write(stream);
     }
 
     @CallSuper
     public void read(DataInput stream) throws IOException{
+        health = stream.readUnsignedShort();
+        byte tr = stream.readByte();
+        byte team = Pack.leftByte(tr);
+        byte rotation = Pack.rightByte(tr);
+
+        tile.setTeam(Team.all[team]);
+        tile.setRotation(rotation);
+
+        if(items != null) items.read(stream);
+        if(power != null) power.read(stream);
+        if(liquids != null) liquids.read(stream);
+        if(cons != null) cons.read(stream);
     }
 
     public boolean collide(Bullet other){
diff --git a/core/src/io/anuke/mindustry/game/Content.java b/core/src/io/anuke/mindustry/game/Content.java
index 4da406e960..b03177e9c3 100644
--- a/core/src/io/anuke/mindustry/game/Content.java
+++ b/core/src/io/anuke/mindustry/game/Content.java
@@ -6,10 +6,10 @@ import io.anuke.mindustry.type.ContentType;
 
 /** Base class for a content type that is loaded in {@link io.anuke.mindustry.core.ContentLoader}. */
 public abstract class Content{
-    public final byte id;
+    public final short id;
 
     public Content(){
-        this.id = (byte)Vars.content.getBy(getContentType()).size;
+        this.id = (short)Vars.content.getBy(getContentType()).size;
         Vars.content.handleContent(this);
     }
 
diff --git a/core/src/io/anuke/mindustry/game/Rules.java b/core/src/io/anuke/mindustry/game/Rules.java
index 95faf1c90a..857c563529 100644
--- a/core/src/io/anuke/mindustry/game/Rules.java
+++ b/core/src/io/anuke/mindustry/game/Rules.java
@@ -2,6 +2,7 @@ package io.anuke.mindustry.game;
 
 import io.anuke.annotations.Annotations.Serialize;
 import io.anuke.arc.collection.Array;
+import io.anuke.mindustry.type.Zone;
 
 /**
  * Defines current rules on how the game should function.
@@ -47,10 +48,10 @@ public class Rules{
     public float bossWaveMultiplier = 3f;
     /** How many times longer a launch wave takes. */
     public float launchWaveMultiplier = 2f;
-    /** Zone ID, -1 for invalid zone. */
-    public byte zone = -1;
+    /** Zone for saves that have them.*/
+    public Zone zone;
     /** Spawn layout. Should be assigned on save load based on map or zone. */
-    public transient Array<SpawnGroup> spawns = DefaultWaves.get();
+    public Array<SpawnGroup> spawns = DefaultWaves.get();
     /** Determines if there should be limited respawns. */
     public boolean limitedRespawns = false;
     /** How many times player can respawn during one wave. */
diff --git a/core/src/io/anuke/mindustry/io/MapIO.java b/core/src/io/anuke/mindustry/io/MapIO.java
index f14525abd3..ccd7381c8d 100644
--- a/core/src/io/anuke/mindustry/io/MapIO.java
+++ b/core/src/io/anuke/mindustry/io/MapIO.java
@@ -144,13 +144,13 @@ public class MapIO{
             for(int i = 0; i < tiles.length * tiles[0].length; i++){
                 Tile tile = tiles[i % width][i / width];
                 stream.writeByte(tile.getFloorID());
-                stream.writeByte(tile.getOverlayID());
+                stream.writeByte(tile.overlayID());
                 int consecutives = 0;
 
                 for(int j = i + 1; j < width * height && consecutives < 255; j++){
                     Tile nextTile = tiles[j % width][j / width];
 
-                    if(nextTile.getFloorID() != tile.getFloorID() || nextTile.block() != Blocks.air || nextTile.getOverlayID() != tile.getOverlayID()){
+                    if(nextTile.getFloorID() != tile.getFloorID() || nextTile.block() != Blocks.air || nextTile.overlayID() != tile.overlayID()){
                         break;
                     }
 
diff --git a/core/src/io/anuke/mindustry/io/SaveFileVersion.java b/core/src/io/anuke/mindustry/io/SaveFileVersion.java
index 49a14cd24b..1ccb52ba17 100644
--- a/core/src/io/anuke/mindustry/io/SaveFileVersion.java
+++ b/core/src/io/anuke/mindustry/io/SaveFileVersion.java
@@ -2,9 +2,7 @@ package io.anuke.mindustry.io;
 
 import io.anuke.arc.collection.*;
 import io.anuke.arc.collection.ObjectMap.Entry;
-import io.anuke.arc.util.Pack;
 import io.anuke.arc.util.io.ReusableByteOutStream;
-import io.anuke.mindustry.content.Blocks;
 import io.anuke.mindustry.entities.Entities;
 import io.anuke.mindustry.entities.EntityGroup;
 import io.anuke.mindustry.entities.traits.*;
@@ -111,17 +109,17 @@ public abstract class SaveFileVersion{
         stream.writeShort(world.width());
         stream.writeShort(world.height());
 
-        //floor first
+        //floor + overlay
         for(int i = 0; i < world.width() * world.height(); i++){
             Tile tile = world.tile(i % world.width(), i / world.width());
-            stream.writeByte(tile.getFloorID());
-            stream.writeByte(tile.getOverlayID());
+            stream.writeShort(tile.floorID());
+            stream.writeShort(tile.overlayID());
             int consecutives = 0;
 
             for(int j = i + 1; j < world.width() * world.height() && consecutives < 255; j++){
                 Tile nextTile = world.tile(j % world.width(), j / world.width());
 
-                if(nextTile.getFloorID() != tile.getFloorID() || nextTile.getOverlayID() != tile.getOverlayID()){
+                if(nextTile.floorID() != tile.floorID() || nextTile.overlayID() != tile.overlayID()){
                     break;
                 }
 
@@ -135,19 +133,9 @@ public abstract class SaveFileVersion{
         //blocks
         for(int i = 0; i < world.width() * world.height(); i++){
             Tile tile = world.tile(i % world.width(), i / world.width());
-            stream.writeByte(tile.getBlockID());
-
-            if(tile.block() == Blocks.part){
-                stream.writeByte(tile.getLinkByte());
-            }else if(tile.entity != null){
-                stream.writeByte(Pack.byteByte(tile.getTeamID(), tile.getRotation())); //team + rotation
-                stream.writeShort((short)tile.entity.health); //health
-
-                if(tile.entity.items != null) tile.entity.items.write(stream);
-                if(tile.entity.power != null) tile.entity.power.write(stream);
-                if(tile.entity.liquids != null) tile.entity.liquids.write(stream);
-                if(tile.entity.cons != null) tile.entity.cons.write(stream);
+            stream.writeShort(tile.blockID());
 
+            if(tile.entity != null){
                 tile.entity.write(stream);
             }else{
                 //write consecutive non-entity blocks
@@ -156,7 +144,7 @@ public abstract class SaveFileVersion{
                 for(int j = i + 1; j < world.width() * world.height() && consecutives < 255; j++){
                     Tile nextTile = world.tile(j % world.width(), j / world.width());
 
-                    if(nextTile.block() != tile.block()){
+                    if(nextTile.blockID() != tile.blockID()){
                         break;
                     }
 
@@ -180,19 +168,15 @@ public abstract class SaveFileVersion{
         //read floor and create tiles first
         for(int i = 0; i < width * height; i++){
             int x = i % width, y = i / width;
-            byte floorid = stream.readByte();
-            byte oreid = stream.readByte();
+            short floorid = stream.readShort();
+            short oreid = stream.readShort();
             int consecutives = stream.readUnsignedByte();
-            Block ore = content.block(oreid);
 
-            tiles[x][y] = new Tile(x, y, floorid, (byte)0);
-            tiles[x][y].setOverlay(ore);
+            tiles[x][y] = new Tile(false, x, y, floorid, oreid);
 
             for(int j = i + 1; j < i + 1 + consecutives; j++){
                 int newx = j % width, newy = j / width;
-                Tile newTile = new Tile(newx, newy, floorid, (byte)0);
-                newTile.setOverlay(ore);
-                tiles[newx][newy] = newTile;
+                tiles[newx][newy] = new Tile(false, newx, newy, floorid, oreid);
             }
 
             i += consecutives;
@@ -205,24 +189,7 @@ public abstract class SaveFileVersion{
             Tile tile = tiles[x][y];
             tile.setBlock(block);
 
-            if(block == Blocks.part){
-                tile.setLinkByte(stream.readByte());
-            }else if(tile.entity != null){
-                byte tr = stream.readByte();
-                short health = stream.readShort();
-
-                byte team = Pack.leftByte(tr);
-                byte rotation = Pack.rightByte(tr);
-
-                tile.setTeam(Team.all[team]);
-                tile.entity.health = health;
-                tile.setRotation(rotation);
-
-                if(tile.entity.items != null) tile.entity.items.read(stream);
-                if(tile.entity.power != null) tile.entity.power.read(stream);
-                if(tile.entity.liquids != null) tile.entity.liquids.read(stream);
-                if(tile.entity.cons != null) tile.entity.cons.read(stream);
-
+            if(tile.entity != null){
                 tile.entity.read(stream);
             }else{
                 int consecutives = stream.readUnsignedByte();
diff --git a/core/src/io/anuke/mindustry/world/Block.java b/core/src/io/anuke/mindustry/world/Block.java
index c3aa1ec35e..2a39935fd2 100644
--- a/core/src/io/anuke/mindustry/world/Block.java
+++ b/core/src/io/anuke/mindustry/world/Block.java
@@ -451,6 +451,10 @@ public class Block extends BlockStorage{
         }
     }
 
+    public Tile linked(Tile tile){
+        return tile;
+    }
+
     public boolean isSolidFor(Tile tile){
         return false;
     }
diff --git a/core/src/io/anuke/mindustry/world/Tile.java b/core/src/io/anuke/mindustry/world/Tile.java
index 94400da648..b1f8bc861e 100644
--- a/core/src/io/anuke/mindustry/world/Tile.java
+++ b/core/src/io/anuke/mindustry/world/Tile.java
@@ -1,10 +1,8 @@
 package io.anuke.mindustry.world;
 
 import io.anuke.arc.collection.Array;
-import io.anuke.arc.function.Consumer;
 import io.anuke.arc.math.Mathf;
 import io.anuke.arc.math.geom.*;
-import io.anuke.arc.util.Pack;
 import io.anuke.mindustry.content.Blocks;
 import io.anuke.mindustry.entities.traits.TargetTrait;
 import io.anuke.mindustry.entities.type.TileEntity;
@@ -24,14 +22,12 @@ public class Tile implements Position, TargetTrait{
     public short x, y;
     protected Block block;
     protected Floor floor;
-    /** Rotation, 0-3. Also used to store offload location and link, in which case it can be any number.
-     * When saved in non-link form, this data is truncated to 4 bits = max 16.*/
+    /** Rotation, 0-3. Also used to store offload location, in which case it can be any number.*/
     private byte rotation;
-    /** Team ordinal. Keep in mind that this is written as 4 bits, which means that there are only 2^4 = 16 possible teams.
-     * Complications may arise from using signed bytes as well. Be careful.*/
+    /** Team ordinal. */
     private byte team;
     /** Ore that is on top of this (floor) block. */
-    private byte overlay = 0;
+    private short overlay = 0;
 
     public Tile(int x, int y){
         this.x = (short)x;
@@ -39,20 +35,11 @@ public class Tile implements Position, TargetTrait{
         block = floor = (Floor)Blocks.air;
     }
 
-    public Tile(int x, int y, byte floor, byte block){
-        this(x, y);
+    public Tile(boolean __removeThisLater, int x, int y, short floor, short overlay){
+        this.x = (short)x;
+        this.y = (short)y;
         this.floor = (Floor)content.block(floor);
-        this.block = content.block(block);
-        changed();
-    }
-
-    public Tile(int x, int y, byte floor, byte block, byte rotation, byte team){
-        this(x, y);
-        this.floor = (Floor)content.block(floor);
-        this.block = content.block(block);
-        this.rotation = rotation;
-        changed();
-        this.team = team;
+        this.overlay = overlay;
     }
 
     /** Returns this tile's position as a {@link Pos}. */
@@ -60,14 +47,6 @@ public class Tile implements Position, TargetTrait{
         return Pos.get(x, y);
     }
 
-    public byte getBlockID(){
-        return block.id;
-    }
-
-    public byte getFloorID(){
-        return floor.id;
-    }
-
     /** Return relative rotation to a coordinate. Returns -1 if the coordinate is not near this tile. */
     public byte relativeTo(int cx, int cy){
         if(x == cx && y == cy - 1) return 1;
@@ -206,11 +185,19 @@ public class Tile implements Position, TargetTrait{
         this.rotation = dump;
     }
 
-    public byte getOverlayID(){
+    public short overlayID(){
         return overlay;
     }
 
-    public void setOverlayID(byte ore){
+    public short blockID(){
+        return block.id;
+    }
+
+    public short floorID(){
+        return floor.id;
+    }
+
+    public void setOverlayID(short ore){
         this.overlay = ore;
     }
 
@@ -255,21 +242,7 @@ public class Tile implements Position, TargetTrait{
     }
 
     public boolean isLinked(){
-        return block == Blocks.part;
-    }
-
-    public byte getLinkByte(){
-        return rotation;
-    }
-
-    public void setLinkByte(byte b){
-        this.rotation = b;
-    }
-
-    /** Sets this to a linked tile, which sets the block to a part. dx and dy can only be -8-7. */
-    public void setLinked(byte dx, byte dy){
-        setBlock(Blocks.part);
-        rotation = Pack.byteByte((byte)(dx + 8), (byte)(dy + 8));
+        return block instanceof BlockPart;
     }
 
     /**
@@ -315,7 +288,7 @@ public class Tile implements Position, TargetTrait{
         return tmpArray;
     }
 
-    /** Returns the block the multiblock is linked to, or null if it is not linked to any block. */
+    /** Returns the block the multiblock is linked to, or null if it is not linked to any block.
     public Tile getLinked(){
         if(!isLinked()){
             return null;
@@ -324,28 +297,10 @@ public class Tile implements Position, TargetTrait{
         }
     }
 
-    public void allNearby(Consumer<Tile> cons){
-        for(Point2 point : Edges.getEdges(block().size)){
-            Tile tile = world.tile(x + point.x, y + point.y);
-            if(tile != null){
-                cons.accept(tile.target());
-            }
-        }
-    }
-
-    public void allInside(Consumer<Tile> cons){
-        for(Point2 point : Edges.getInsideEdges(block().size)){
-            Tile tile = world.tile(x + point.x, y + point.y);
-            if(tile != null){
-                cons.accept(tile);
-            }
-        }
-    }
-
     public Tile target(){
         Tile link = getLinked();
         return link == null ? this : link;
-    }
+    }*/
 
     public Rectangle getHitbox(Rectangle rect){
         return rect.setSize(block().size * tilesize).setCenter(drawx(), drawy());
@@ -507,6 +462,8 @@ public class Tile implements Position, TargetTrait{
         (isLinked() ? " link=[" + linkX(rotation) + ", " + linkY(rotation) + "]" : "");
     }
 
+    //TODO remove these!
+
     /**Returns the relative X from a link byte.*/
     public static int linkX(byte value){
         return -((byte)((value >> 4) & (byte)0x0F) - 8);
diff --git a/core/src/io/anuke/mindustry/world/blocks/BlockPart.java b/core/src/io/anuke/mindustry/world/blocks/BlockPart.java
index bc82001109..325f451175 100644
--- a/core/src/io/anuke/mindustry/world/blocks/BlockPart.java
+++ b/core/src/io/anuke/mindustry/world/blocks/BlockPart.java
@@ -1,7 +1,5 @@
 package io.anuke.mindustry.world.blocks;
 
-import io.anuke.mindustry.type.Item;
-import io.anuke.mindustry.type.Liquid;
 import io.anuke.mindustry.world.Block;
 import io.anuke.mindustry.world.Tile;
 
@@ -11,18 +9,35 @@ import io.anuke.mindustry.world.Tile;
  * They are made to share all properties from the linked tile/block.
  */
 public class BlockPart extends Block{
+    public final static int maxSize = 9;
+    private final static BlockPart[][] parts = new BlockPart[maxSize][maxSize];
 
-    public BlockPart(){
-        super("part");
+    private final int dx, dy;
+
+    public BlockPart(int dx, int dy){
+        super("part_" + dx + "_" + dy);
+        this.dx = dx;
+        this.dy = dy;
         solid = false;
         hasPower = hasItems = hasLiquids = true;
+        parts[dx + maxSize/2][dy + maxSize/2] = this;
+    }
+
+    public static BlockPart get(int dx, int dy){
+        return parts[dx + maxSize/2][dy + maxSize/2];
     }
 
     @Override
-    public void drawTeam(Tile tile){
-
+    public Tile linked(Tile tile){
+        return tile.getNearby(dx, dy);
     }
 
+    @Override
+    public void drawTeam(Tile tile){}
+
+    @Override
+    public void draw(Tile tile){}
+
     @Override
     public boolean synthetic(){
         return true;
@@ -33,43 +48,4 @@ public class BlockPart extends Block{
         return true;
     }
 
-    @Override
-    public void draw(Tile tile){
-        //do nothing
-    }
-
-    @Override
-    public boolean isSolidFor(Tile tile){
-        return tile.getLinked() == null
-        || (tile.getLinked().block() instanceof BlockPart || tile.getLinked().solid()
-        || tile.getLinked().block().isSolidFor(tile.getLinked()));
-    }
-
-    @Override
-    public void handleItem(Item item, Tile tile, Tile source){
-        tile.getLinked().block().handleItem(item, tile.getLinked(), source);
-    }
-
-    @Override
-    public boolean acceptItem(Item item, Tile tile, Tile source){
-        return tile.getLinked().block().acceptItem(item, tile.getLinked(), source);
-    }
-
-    @Override
-    public boolean acceptLiquid(Tile tile, Tile source, Liquid liquid, float amount){
-        Block block = linked(tile);
-        return block.hasLiquids
-        && block.acceptLiquid(tile.getLinked(), source, liquid, amount);
-    }
-
-    @Override
-    public void handleLiquid(Tile tile, Tile source, Liquid liquid, float amount){
-        Block block = linked(tile);
-        block.handleLiquid(tile.getLinked(), source, liquid, amount);
-    }
-
-    private Block linked(Tile tile){
-        return tile.getLinked().block();
-    }
-
 }
diff --git a/core/src/io/anuke/mindustry/world/blocks/BuildBlock.java b/core/src/io/anuke/mindustry/world/blocks/BuildBlock.java
index f1fb7c7929..f9e373e2f1 100644
--- a/core/src/io/anuke/mindustry/world/blocks/BuildBlock.java
+++ b/core/src/io/anuke/mindustry/world/blocks/BuildBlock.java
@@ -292,6 +292,7 @@ public class BuildBlock extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeFloat(progress);
             stream.writeShort(previous == null ? -1 : previous.id);
             stream.writeShort(cblock == null ? -1 : cblock.id);
@@ -309,6 +310,7 @@ public class BuildBlock extends Block{
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             progress = stream.readFloat();
             short pid = stream.readShort();
             short rid = stream.readShort();
diff --git a/core/src/io/anuke/mindustry/world/blocks/defense/Door.java b/core/src/io/anuke/mindustry/world/blocks/defense/Door.java
index 5676592267..62dcb98d6e 100644
--- a/core/src/io/anuke/mindustry/world/blocks/defense/Door.java
+++ b/core/src/io/anuke/mindustry/world/blocks/defense/Door.java
@@ -85,11 +85,13 @@ public class Door extends Wall{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeBoolean(open);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             open = stream.readBoolean();
         }
     }
diff --git a/core/src/io/anuke/mindustry/world/blocks/defense/ForceProjector.java b/core/src/io/anuke/mindustry/world/blocks/defense/ForceProjector.java
index 6b9e611893..503081a610 100644
--- a/core/src/io/anuke/mindustry/world/blocks/defense/ForceProjector.java
+++ b/core/src/io/anuke/mindustry/world/blocks/defense/ForceProjector.java
@@ -203,6 +203,7 @@ public class ForceProjector extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeBoolean(broken);
             stream.writeFloat(buildup);
             stream.writeFloat(radscl);
@@ -212,6 +213,7 @@ public class ForceProjector extends Block{
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             broken = stream.readBoolean();
             buildup = stream.readFloat();
             radscl = stream.readFloat();
diff --git a/core/src/io/anuke/mindustry/world/blocks/defense/MendProjector.java b/core/src/io/anuke/mindustry/world/blocks/defense/MendProjector.java
index df97089bda..defe6d698e 100644
--- a/core/src/io/anuke/mindustry/world/blocks/defense/MendProjector.java
+++ b/core/src/io/anuke/mindustry/world/blocks/defense/MendProjector.java
@@ -149,12 +149,14 @@ public class MendProjector extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeFloat(heat);
             stream.writeFloat(phaseHeat);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             heat = stream.readFloat();
             phaseHeat = stream.readFloat();
         }
diff --git a/core/src/io/anuke/mindustry/world/blocks/defense/OverdriveProjector.java b/core/src/io/anuke/mindustry/world/blocks/defense/OverdriveProjector.java
index 2de2cd6b8f..7f5cd03c5c 100644
--- a/core/src/io/anuke/mindustry/world/blocks/defense/OverdriveProjector.java
+++ b/core/src/io/anuke/mindustry/world/blocks/defense/OverdriveProjector.java
@@ -148,12 +148,14 @@ public class OverdriveProjector extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeFloat(heat);
             stream.writeFloat(phaseHeat);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             heat = stream.readFloat();
             phaseHeat = stream.readFloat();
         }
diff --git a/core/src/io/anuke/mindustry/world/blocks/defense/turrets/ItemTurret.java b/core/src/io/anuke/mindustry/world/blocks/defense/turrets/ItemTurret.java
index c89ef0c4cf..f23ae75df3 100644
--- a/core/src/io/anuke/mindustry/world/blocks/defense/turrets/ItemTurret.java
+++ b/core/src/io/anuke/mindustry/world/blocks/defense/turrets/ItemTurret.java
@@ -121,6 +121,7 @@ public class ItemTurret extends CooledTurret{
     public class ItemTurretEntity extends TurretEntity{
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeByte(ammo.size);
             for(AmmoEntry entry : ammo){
                 ItemEntry i = (ItemEntry)entry;
@@ -131,6 +132,7 @@ public class ItemTurret extends CooledTurret{
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             byte amount = stream.readByte();
             for(int i = 0; i < amount; i++){
                 Item item = Vars.content.item(stream.readByte());
diff --git a/core/src/io/anuke/mindustry/world/blocks/distribution/Conduit.java b/core/src/io/anuke/mindustry/world/blocks/distribution/Conduit.java
index 44c54540ce..e1b2055236 100644
--- a/core/src/io/anuke/mindustry/world/blocks/distribution/Conduit.java
+++ b/core/src/io/anuke/mindustry/world/blocks/distribution/Conduit.java
@@ -10,8 +10,6 @@ import io.anuke.mindustry.world.Tile;
 import io.anuke.mindustry.world.blocks.LiquidBlock;
 import io.anuke.mindustry.world.modules.LiquidModule;
 
-import java.io.*;
-
 public class Conduit extends LiquidBlock{
     protected final int timerFlow = timers++;
 
@@ -119,15 +117,5 @@ public class Conduit extends LiquidBlock{
 
         byte blendbits;
         int blendshadowrot;
-
-        @Override
-        public void write(DataOutput stream) throws IOException{
-            stream.writeFloat(smoothLiquid);
-        }
-
-        @Override
-        public void read(DataInput stream) throws IOException{
-            smoothLiquid = stream.readFloat();
-        }
     }
 }
diff --git a/core/src/io/anuke/mindustry/world/blocks/distribution/Conveyor.java b/core/src/io/anuke/mindustry/world/blocks/distribution/Conveyor.java
index 1e602a1ff5..023eb8fb72 100644
--- a/core/src/io/anuke/mindustry/world/blocks/distribution/Conveyor.java
+++ b/core/src/io/anuke/mindustry/world/blocks/distribution/Conveyor.java
@@ -367,6 +367,7 @@ public class Conveyor extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeInt(convey.size);
 
             for(int i = 0; i < convey.size; i++){
@@ -376,6 +377,7 @@ public class Conveyor extends Block{
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             convey.clear();
             int amount = stream.readInt();
             convey.ensureCapacity(Math.min(amount, 10));
diff --git a/core/src/io/anuke/mindustry/world/blocks/distribution/ItemBridge.java b/core/src/io/anuke/mindustry/world/blocks/distribution/ItemBridge.java
index 2218991af5..213418b72e 100644
--- a/core/src/io/anuke/mindustry/world/blocks/distribution/ItemBridge.java
+++ b/core/src/io/anuke/mindustry/world/blocks/distribution/ItemBridge.java
@@ -327,6 +327,7 @@ public class ItemBridge extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeInt(link);
             stream.writeFloat(uptime);
             stream.writeByte(incoming.size);
@@ -340,6 +341,7 @@ public class ItemBridge extends Block{
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             link = stream.readInt();
             uptime = stream.readFloat();
             byte links = stream.readByte();
diff --git a/core/src/io/anuke/mindustry/world/blocks/distribution/Junction.java b/core/src/io/anuke/mindustry/world/blocks/distribution/Junction.java
index f2c652e0f9..6330409029 100644
--- a/core/src/io/anuke/mindustry/world/blocks/distribution/Junction.java
+++ b/core/src/io/anuke/mindustry/world/blocks/distribution/Junction.java
@@ -87,6 +87,7 @@ public class Junction extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             for(Buffer b : buffers){
                 b.write(stream);
             }
@@ -94,6 +95,7 @@ public class Junction extends Block{
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             for(Buffer b : buffers){
                 b.read(stream);
             }
diff --git a/core/src/io/anuke/mindustry/world/blocks/distribution/MassDriver.java b/core/src/io/anuke/mindustry/world/blocks/distribution/MassDriver.java
index 03feb4e4ef..ef1f5cb256 100644
--- a/core/src/io/anuke/mindustry/world/blocks/distribution/MassDriver.java
+++ b/core/src/io/anuke/mindustry/world/blocks/distribution/MassDriver.java
@@ -23,8 +23,6 @@ import io.anuke.mindustry.graphics.Pal;
 import io.anuke.mindustry.type.Item;
 import io.anuke.mindustry.world.Block;
 import io.anuke.mindustry.world.Tile;
-import io.anuke.mindustry.world.meta.BlockStat;
-import io.anuke.mindustry.world.meta.StatUnit;
 
 import java.io.*;
 
@@ -323,6 +321,7 @@ public class MassDriver extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeInt(link);
             stream.writeFloat(rotation);
             stream.writeByte((byte)state.ordinal());
@@ -330,6 +329,7 @@ public class MassDriver extends Block{
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             link = stream.readInt();
             rotation = stream.readFloat();
             state = DriverState.values()[stream.readByte()];
diff --git a/core/src/io/anuke/mindustry/world/blocks/distribution/Sorter.java b/core/src/io/anuke/mindustry/world/blocks/distribution/Sorter.java
index 2f17b814ec..89068a1a06 100644
--- a/core/src/io/anuke/mindustry/world/blocks/distribution/Sorter.java
+++ b/core/src/io/anuke/mindustry/world/blocks/distribution/Sorter.java
@@ -133,11 +133,13 @@ public class Sorter extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeByte(sortItem == null ? -1 : sortItem.id);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             byte b = stream.readByte();
             sortItem = b == -1 ? null : content.items().get(b);
         }
diff --git a/core/src/io/anuke/mindustry/world/blocks/power/NuclearReactor.java b/core/src/io/anuke/mindustry/world/blocks/power/NuclearReactor.java
index 6468094447..9e9b33cfde 100644
--- a/core/src/io/anuke/mindustry/world/blocks/power/NuclearReactor.java
+++ b/core/src/io/anuke/mindustry/world/blocks/power/NuclearReactor.java
@@ -183,11 +183,13 @@ public class NuclearReactor extends PowerGenerator{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeFloat(heat);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             heat = stream.readFloat();
         }
     }
diff --git a/core/src/io/anuke/mindustry/world/blocks/power/PowerGenerator.java b/core/src/io/anuke/mindustry/world/blocks/power/PowerGenerator.java
index fa0043dbbc..7277f0e23c 100644
--- a/core/src/io/anuke/mindustry/world/blocks/power/PowerGenerator.java
+++ b/core/src/io/anuke/mindustry/world/blocks/power/PowerGenerator.java
@@ -63,11 +63,13 @@ public class PowerGenerator extends PowerDistributor{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeFloat(productionEfficiency);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             productionEfficiency = stream.readFloat();
         }
     }
diff --git a/core/src/io/anuke/mindustry/world/blocks/production/Cultivator.java b/core/src/io/anuke/mindustry/world/blocks/production/Cultivator.java
index 955c786520..ae4667deef 100644
--- a/core/src/io/anuke/mindustry/world/blocks/production/Cultivator.java
+++ b/core/src/io/anuke/mindustry/world/blocks/production/Cultivator.java
@@ -118,11 +118,13 @@ public class Cultivator extends GenericCrafter{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeFloat(warmup);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             warmup = stream.readFloat();
         }
     }
diff --git a/core/src/io/anuke/mindustry/world/blocks/production/GenericCrafter.java b/core/src/io/anuke/mindustry/world/blocks/production/GenericCrafter.java
index 3b1f50544e..794b97b8f4 100644
--- a/core/src/io/anuke/mindustry/world/blocks/production/GenericCrafter.java
+++ b/core/src/io/anuke/mindustry/world/blocks/production/GenericCrafter.java
@@ -150,12 +150,14 @@ public class GenericCrafter extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeFloat(progress);
             stream.writeFloat(warmup);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             progress = stream.readFloat();
             warmup = stream.readFloat();
         }
diff --git a/core/src/io/anuke/mindustry/world/blocks/sandbox/LiquidSource.java b/core/src/io/anuke/mindustry/world/blocks/sandbox/LiquidSource.java
index 970e64245e..52132a69ae 100644
--- a/core/src/io/anuke/mindustry/world/blocks/sandbox/LiquidSource.java
+++ b/core/src/io/anuke/mindustry/world/blocks/sandbox/LiquidSource.java
@@ -9,7 +9,6 @@ import io.anuke.arc.scene.style.TextureRegionDrawable;
 import io.anuke.arc.scene.ui.ButtonGroup;
 import io.anuke.arc.scene.ui.ImageButton;
 import io.anuke.arc.scene.ui.layout.Table;
-import io.anuke.mindustry.content.Liquids;
 import io.anuke.mindustry.entities.type.Player;
 import io.anuke.mindustry.entities.type.TileEntity;
 import io.anuke.mindustry.gen.Call;
@@ -117,11 +116,13 @@ public class LiquidSource extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeByte(source == null ? -1 : source.id);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             byte id = stream.readByte();
             source = id == -1 ? null : content.liquid(id);
         }
diff --git a/core/src/io/anuke/mindustry/world/blocks/storage/Unloader.java b/core/src/io/anuke/mindustry/world/blocks/storage/Unloader.java
index ba01ffdc2a..12026eef43 100644
--- a/core/src/io/anuke/mindustry/world/blocks/storage/Unloader.java
+++ b/core/src/io/anuke/mindustry/world/blocks/storage/Unloader.java
@@ -105,11 +105,13 @@ public class Unloader extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeByte(sortItem == null ? -1 : sortItem.id);
         }
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             byte id = stream.readByte();
             sortItem = id == -1 ? null : content.items().get(id);
         }
diff --git a/core/src/io/anuke/mindustry/world/blocks/units/MechPad.java b/core/src/io/anuke/mindustry/world/blocks/units/MechPad.java
index 85e361bddc..720cb2c358 100644
--- a/core/src/io/anuke/mindustry/world/blocks/units/MechPad.java
+++ b/core/src/io/anuke/mindustry/world/blocks/units/MechPad.java
@@ -178,6 +178,7 @@ public class MechPad extends Block{
 
         @Override
         public void write(DataOutput stream) throws IOException{
+            super.write(stream);
             stream.writeFloat(progress);
             stream.writeFloat(time);
             stream.writeFloat(heat);
@@ -185,6 +186,7 @@ public class MechPad extends Block{
 
         @Override
         public void read(DataInput stream) throws IOException{
+            super.read(stream);
             progress = stream.readFloat();
             time = stream.readFloat();
             heat = stream.readFloat();
diff --git a/tools/src/io/anuke/mindustry/Generators.java b/tools/src/io/anuke/mindustry/Generators.java
index c164860d52..6b476619c3 100644
--- a/tools/src/io/anuke/mindustry/Generators.java
+++ b/tools/src/io/anuke/mindustry/Generators.java
@@ -70,7 +70,7 @@ public class Generators{
         });
 
         ImagePacker.generate("block-icons", () -> {
-            Image colors = new Image(256, 1);
+            Image colors = new Image(content.blocks().size, 1);
             Color outlineColor = new Color(0, 0, 0, 0.3f);
 
             for(Block block : content.blocks()){