Fire rule

core/src/mindustry/entities/Fires.java

@@ -17,7 +17,7 @@ public class Fires{
 
     /** Start a fire on the tile. If there already is a file there, refreshes its lifetime. */
     public static void create(Tile tile){
-        if(net.client() || tile == null) return; //not clientside.
+        if(net.client() || tile == null || !state.rules.fire) return; //not clientside.
 
         Fire fire = map.get(tile.pos());
 

core/src/mindustry/game/Rules.java

@@ -40,6 +40,8 @@ public class Rules{
     public boolean reactorExplosions = true;
     /** Whether friendly explosions can occur and set fire/damage other blocks. */
     public boolean damageExplosions = true;
+    /** Whether fire is enabled. */
+    public boolean fire = true;
     /** Whether units use and require ammo. */
     public boolean unitAmmo = false;
     /** How fast unit pads build units. */