diff --git a/core/assets-raw/sprites/units/quad.png b/core/assets-raw/sprites/units/quad.png
index 878c8eed77..51b20f747d 100644
Binary files a/core/assets-raw/sprites/units/quad.png and b/core/assets-raw/sprites/units/quad.png differ
diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index 5feae5c0e1..b3402b6f75 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -2157,6 +2157,7 @@ public class Blocks{
 
             ambientSound = Sounds.smelter;
             ambientSoundVolume = 0.03f;
+            generateEffect = Fx.generatespark;
 
             consume(new ConsumeItemFlammable());
             consume(new ConsumeItemExplode());
@@ -2183,6 +2184,7 @@ public class Blocks{
             hasLiquids = true;
             size = 2;
             drawer.iconOverride = new String[]{"", "-turbine0", "-turbine1"};
+            generateEffect = Fx.generatespark;
 
             ambientSound = Sounds.smelter;
             ambientSoundVolume = 0.06f;
@@ -2201,6 +2203,7 @@ public class Blocks{
             hasItems = true;
             size = 3;
             ambientSound = Sounds.steam;
+            generateEffect = Fx.generatespark;
             ambientSoundVolume = 0.03f;
 
             drawer = new DrawMulti(new DrawBlock(), new DrawWarmupRegion());
@@ -2215,6 +2218,7 @@ public class Blocks{
             powerProduction = 4.5f;
             itemDuration = 60 * 14f;
             envEnabled = Env.any;
+            generateEffect = Fx.generatespark;
 
             drawer = new DrawMulti(new DrawBlock(), new DrawWarmupRegion());
             consume(new ConsumeItemRadioactive());
diff --git a/core/src/mindustry/content/SerpuloTechTree.java b/core/src/mindustry/content/SerpuloTechTree.java
index 391fe20fc8..4c2847b631 100644
--- a/core/src/mindustry/content/SerpuloTechTree.java
+++ b/core/src/mindustry/content/SerpuloTechTree.java
@@ -166,6 +166,12 @@ public class SerpuloTechTree{
                             });
                         });
 
+                        node(message, () -> {
+
+                        });
+
+                        //logic disabled until further notice
+                        /*
                         node(microProcessor, () -> {
                             node(switchBlock, () -> {
                                 node(message, () -> {
@@ -188,7 +194,7 @@ public class SerpuloTechTree{
                                     });
                                 });
                             });
-                        });
+                        });*/
 
                         node(illuminator, () -> {
 
diff --git a/core/src/mindustry/content/UnitTypes.java b/core/src/mindustry/content/UnitTypes.java
index 546158308b..c5c0b421a5 100644
--- a/core/src/mindustry/content/UnitTypes.java
+++ b/core/src/mindustry/content/UnitTypes.java
@@ -967,7 +967,7 @@ public class UnitTypes{
             targetAir = false;
             targetFlags = new BlockFlag[]{BlockFlag.generator, null};
             hitSize = 7;
-            itemCapacity = 15;
+            itemCapacity = 0;
 
             weapons.add(new Weapon(){{
                 y = 0f;
diff --git a/core/src/mindustry/entities/comp/BuildingComp.java b/core/src/mindustry/entities/comp/BuildingComp.java
index f053bf2452..a1f3c43e4d 100644
--- a/core/src/mindustry/entities/comp/BuildingComp.java
+++ b/core/src/mindustry/entities/comp/BuildingComp.java
@@ -66,13 +66,14 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     transient byte cdump;
     transient int rotation;
     transient float payloadRotation;
-    transient boolean enabled = true;
-    transient float enabledControlTime;
     transient String lastAccessed;
     transient boolean wasDamaged; //used only by the indexer
     transient boolean wasVisible; //used only by the block renderer when fog is on (TODO replace with discovered check?)
     transient float visualLiquid;
 
+    transient boolean enabled = true;
+    transient @Nullable Building lastDisabler;
+
     @Nullable PowerModule power;
     @Nullable ItemModule items;
     @Nullable LiquidModule liquids;
@@ -82,8 +83,8 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     /** Same as efficiency, but for optional consumers only. */
     transient float optionalEfficiency;
 
-    public transient float healSuppressionTime = -1f;
-    public transient float lastHealTime = -120f * 10f;
+    transient float healSuppressionTime = -1f;
+    transient float lastHealTime = -120f * 10f;
 
     private transient float timeScale = 1f, timeScaleDuration;
     private transient float dumpAccum;
@@ -195,9 +196,6 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
             if(version >= 1){
                 byte on = read.b();
                 this.enabled = on == 1;
-                if(!this.enabled){
-                    enabledControlTime = timeToUncontrol;
-                }
             }
 
             //get which modules should actually be read; this was added in version 2
@@ -497,7 +495,7 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     }
 
     public BlockStatus status(){
-        if(enabledControlTime > 0 && !enabled){
+        if(!enabled){
             return BlockStatus.logicDisable;
         }
 
@@ -1803,7 +1801,6 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
     public void control(LAccess type, double p1, double p2, double p3, double p4){
         if(type == LAccess.enabled){
             enabled = !Mathf.zero((float)p1);
-            enabledControlTime = timeToUncontrol;
         }
     }
 
@@ -1866,16 +1863,6 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
             timeScale = 1f;
         }
 
-        //TODO unacceptable overhead?
-        if(!enabled && block.autoResetEnabled){
-            noSleep();
-            enabledControlTime -= Time.delta;
-
-            if(enabledControlTime <= 0){
-                enabled = true;
-            }
-        }
-
         if(!allowUpdate()){
             enabled = false;
         }
diff --git a/core/src/mindustry/logic/LExecutor.java b/core/src/mindustry/logic/LExecutor.java
index d22a39ae20..de483e1f6f 100644
--- a/core/src/mindustry/logic/LExecutor.java
+++ b/core/src/mindustry/logic/LExecutor.java
@@ -560,6 +560,11 @@ public class LExecutor{
         public void run(LExecutor exec){
             Object obj = exec.obj(target);
             if(obj instanceof Building b && (exec.privileged || (b.team == exec.team && exec.linkIds.contains(b.id)))){
+
+                if(type == LAccess.enabled && !exec.bool(p1)){
+                    b.lastDisabler = exec.build;
+                }
+
                 if(type.isObj && exec.var(p1).isobj){
                     b.control(type, exec.obj(p1), exec.num(p2), exec.num(p3), exec.num(p4));
                 }else{
diff --git a/core/src/mindustry/logic/LStatements.java b/core/src/mindustry/logic/LStatements.java
index 0488e68444..40809d7cdb 100644
--- a/core/src/mindustry/logic/LStatements.java
+++ b/core/src/mindustry/logic/LStatements.java
@@ -1244,13 +1244,6 @@ public class LStatements{
             rebuild(table);
         }
 
-        /*
-        unitBuildSpeed,
-    unitDamage,
-    blockHealth,
-    blockDamage
-         */
-
         void rebuild(Table table){
             table.clearChildren();
 
diff --git a/core/src/mindustry/type/Weapon.java b/core/src/mindustry/type/Weapon.java
index ebde50d2ea..3fe2cfca3b 100644
--- a/core/src/mindustry/type/Weapon.java
+++ b/core/src/mindustry/type/Weapon.java
@@ -401,7 +401,7 @@ public class Weapon implements Cloneable{
         shootAngle = bulletRotation(unit, mount, bulletX, bulletY),
         lifeScl = bullet.scaleVelocity ? Mathf.clamp(Mathf.dst(shootX, shootY, mount.aimX, mount.aimY) / bullet.range) : 1f;
 
-        bullet(mount, unit, shootX, shootY, angleOffset + shootAngle + Mathf.range(inaccuracy), lifeScl, shootAngle, mountX, mountY);
+        bullet(mount, unit, bulletX, bulletY, angleOffset + shootAngle + Mathf.range(inaccuracy), lifeScl, shootAngle, mountX, mountY);
     }
 
     protected void bullet(WeaponMount mount, Unit unit, float shootX, float shootY, float angle, float lifescl, float mountRotation, float mountX, float mountY){
diff --git a/core/src/mindustry/world/blocks/logic/LogicBlock.java b/core/src/mindustry/world/blocks/logic/LogicBlock.java
index 44e9aac01e..62dc305fbb 100644
--- a/core/src/mindustry/world/blocks/logic/LogicBlock.java
+++ b/core/src/mindustry/world/blocks/logic/LogicBlock.java
@@ -397,6 +397,17 @@ public class LogicBlock extends Block{
             }
         }
 
+        @Override
+        public void removeFromProximity(){
+            super.removeFromProximity();
+
+            for(var link : executor.links){
+                if(!link.enabled && link.lastDisabler == this){
+                    link.enabled = true;
+                }
+            }
+        }
+
         @Override
         public Cursor getCursor(){
             return !accessible() ? SystemCursor.arrow : super.getCursor();
diff --git a/core/src/mindustry/world/consumers/ConsumeItemExplosive.java b/core/src/mindustry/world/consumers/ConsumeItemExplosive.java
new file mode 100644
index 0000000000..447928c8f7
--- /dev/null
+++ b/core/src/mindustry/world/consumers/ConsumeItemExplosive.java
@@ -0,0 +1,20 @@
+package mindustry.world.consumers;
+
+import mindustry.gen.*;
+
+public class ConsumeItemExplosive extends ConsumeItemFilter{
+
+    public ConsumeItemExplosive(float minExplosiveness){
+        super(item -> item.explosiveness >= minExplosiveness);
+    }
+
+    public ConsumeItemExplosive(){
+        this(0.2f);
+    }
+
+    @Override
+    public float efficiencyMultiplier(Building build){
+        var item = getConsumed(build);
+        return item == null ? 0f : item.explosiveness;
+    }
+}
diff --git a/tools/build.gradle b/tools/build.gradle
index 057b4a2c47..148da40dee 100644
--- a/tools/build.gradle
+++ b/tools/build.gradle
@@ -28,7 +28,8 @@ def enableAA = true
 //it's not compiled for other platforms so they don't get it
 def useFastAA = project.hasProperty("fastAA") || System.getProperty("user.name") == "anuke"
 
-def antialias = { File file ->
+@groovy.transform.CompileStatic
+private def antialias(File file, boolean doAntialias, boolean useFastAA){
     if(!doAntialias) return
 
     if(useFastAA){
@@ -168,7 +169,7 @@ task pack(dependsOn: [classes, configurations.runtimeClasspath]){
                 if(file.isDirectory() || (file.toString().replace("\\", "/").contains("/ui/") && file.toString().startsWith("icon-")) || file.toString().contains(".9.png")) return
 
                 executor.submit{
-                    antialias(file.file)
+                    antialias(file.file, doAntialias, useFastAA)
                 }
             }