diff --git a/SERVERLIST.md b/SERVERLIST.md
index b3dbebe0ca..2afe0b887e 100644
--- a/SERVERLIST.md
+++ b/SERVERLIST.md
@@ -1,7 +1,7 @@
 ### Adding a server to the list
 
 Mindustry now has a public list of servers that everyone can see and connect to. 
-This is done by letting clients `GET` a [JSON list of servers](https://github.com/Anuken/Mindustry/blob/master/servers_v6.json) in this repository.
+This is done by letting clients `GET` a [JSON list of servers](https://github.com/Anuken/Mindustry/blob/master/servers_v7.json) in this repository.
 
 You may want to add your server to this list. The steps for getting this done are as follows:
 
@@ -18,7 +18,7 @@ You'll need to either hire some moderators, or make use of (currently non-existe
 4. **Get some good maps.** *(optional, but highly recommended)*. Add some maps to your server and set the map rotation to custom-only. You can get maps from the Steam workshop by subscribing and exporting them; using the `#maps` channel on Discord is also an option.
 5. **Check your server configuration.** *(optional)* I would recommend adding a message rate limit of 1 second (`config messageRateLimit 1`), and disabling connect/disconnect messages to reduce spam (`config showConnectMessages false`).
 6. Finally, **submit a pull request** to add your server's IP to the list. 
-This should be fairly straightforward: Press the edit button on the [server file](https://github.com/Anuken/Mindustry/blob/master/servers_v6.json), then add a JSON object with a single key, indicating your server address.
+This should be fairly straightforward: Press the edit button on the [server file](https://github.com/Anuken/Mindustry/blob/master/servers_v7.json), then add a JSON object with a single key, indicating your server address.
 For example, if your server address is `example.com:6000`, you would add a comma after the last entry and insert:
     ```json
       {
diff --git a/core/src/mindustry/input/InputHandler.java b/core/src/mindustry/input/InputHandler.java
index ba33d0cef2..8d5eab1901 100644
--- a/core/src/mindustry/input/InputHandler.java
+++ b/core/src/mindustry/input/InputHandler.java
@@ -469,7 +469,7 @@ public abstract class InputHandler implements InputProcessor, GestureListener{
         build.updateProximity();
         build.noSleep();
         Fx.rotateBlock.at(build.x, build.y, build.block.size);
-        Events.fire(new BuildRotateEvent(build, player.unit(), previous));
+        Events.fire(new BuildRotateEvent(build, player == null ? null : player.unit(), previous));
     }
 
     @Remote(targets = Loc.both, called = Loc.both, forward = true)
diff --git a/core/src/mindustry/world/blocks/power/ImpactReactor.java b/core/src/mindustry/world/blocks/power/ImpactReactor.java
index e0336abb53..136cf66b46 100644
--- a/core/src/mindustry/world/blocks/power/ImpactReactor.java
+++ b/core/src/mindustry/world/blocks/power/ImpactReactor.java
@@ -36,6 +36,7 @@ public class ImpactReactor extends PowerGenerator{
         explosionShake = 6f;
         explosionShakeDuration = 16f;
         explosionDamage = 1900 * 4;
+        explosionMinWarmup = 0.3f;
         explodeEffect = Fx.impactReactorExplosion;
         explodeSound = Sounds.explosionbig;
     }
@@ -110,13 +111,6 @@ public class ImpactReactor extends PowerGenerator{
             return super.sense(sensor);
         }
 
-        @Override
-        public void createExplosion(){
-            if(warmup >= 0.3f){
-                super.createExplosion();
-            }
-        }
-
         @Override
         public void write(Writes write){
             super.write(write);
diff --git a/core/src/mindustry/world/blocks/power/NuclearReactor.java b/core/src/mindustry/world/blocks/power/NuclearReactor.java
index 63b4c90d57..8e28d5b331 100644
--- a/core/src/mindustry/world/blocks/power/NuclearReactor.java
+++ b/core/src/mindustry/world/blocks/power/NuclearReactor.java
@@ -128,10 +128,8 @@ public class NuclearReactor extends PowerGenerator{
         }
 
         @Override
-        public void createExplosion(){
-            if(items.get(fuelItem) >= 5 || heat >= 0.5f){
-                super.createExplosion();
-            }
+        public boolean shouldExplode(){
+            return super.shouldExplode() && (items.get(fuelItem) >= 5 || heat >= 0.5f);
         }
 
         @Override