Add server spawn protection config option as per someh4x0r's request.

forge/patches/minecraft_server/net/minecraft/server/MinecraftServer.java.patch

@@ -44,7 +44,24 @@
  
      /** True if the server is in online mode. */
      public boolean onlineMode;
-@@ -195,9 +199,11 @@
+@@ -129,6 +133,8 @@
+     public long[] field_48082_x = new long[100];
+     private RConThreadQuery rconQueryThread;
+     private RConThreadMain rconMainThread;
++    
++    public int spawnProtectionSize = 16;
+ 
+     public MinecraftServer()
+     {
+@@ -163,6 +169,7 @@
+         this.allowFlight = this.propertyManagerObj.getBooleanProperty("allow-flight", false);
+         this.motd = this.propertyManagerObj.getStringProperty("motd", "A Minecraft Server");
+         this.motd.replace('\u00a7', '$');
++        spawnProtectionSize = this.propertyManagerObj.getIntProperty("spawn-protection-size", 16);
+         InetAddress var2 = null;
+ 
+         if (this.hostname.length() > 0)
+@@ -195,9 +202,11 @@
  
          FMLServerHandler.instance().onLoadComplete();
          this.configManager = new ServerConfigurationManager(this);
@@ -56,7 +73,7 @@
          long var3 = System.nanoTime();
          String var5 = this.propertyManagerObj.getStringProperty("level-name", "world");
          String var6 = this.propertyManagerObj.getStringProperty("level-seed", "");
-@@ -265,53 +271,36 @@
+@@ -265,53 +274,36 @@
              logger.info("Converting map!");
              par1ISaveFormat.convertMapFormat(par2Str, new ConvertProgressUpdater(this));
          }
@@ -126,7 +143,7 @@
              ChunkCoordinates var15 = var14.getSpawnPoint();
  
              for (int var16 = -var22; var16 <= var22 && this.serverRunning; var16 += 16)
-@@ -372,9 +361,9 @@
+@@ -372,9 +364,9 @@
      {
          logger.info("Saving chunks");
  
@@ -138,7 +155,7 @@
              var2.saveWorld(true, (IProgressUpdate)null);
              var2.func_30006_w();
          }
-@@ -392,13 +381,14 @@
+@@ -392,13 +384,14 @@
              this.configManager.savePlayerStates();
          }
  
@@ -155,7 +172,7 @@
              }
          }
      }
-@@ -440,7 +430,7 @@
+@@ -440,7 +433,7 @@
                      var3 += var7;
                      var1 = var5;
  
@@ -164,7 +181,7 @@
                      {
                          this.doTick();
                          var3 = 0L;
-@@ -542,13 +532,13 @@
+@@ -542,13 +535,13 @@
          Vec3D.initialize();
          ++this.deathTime;
  
@@ -181,7 +198,7 @@
  
                  if (this.deathTime % 20 == 0)
                  {
-@@ -567,15 +557,15 @@
+@@ -567,15 +560,15 @@
                  }
              }
  
@@ -200,7 +217,7 @@
          }
  
          for (var9 = 0; var9 < this.playersOnline.size(); ++var9)
-@@ -689,7 +679,8 @@
+@@ -689,7 +682,8 @@
       */
      public WorldServer getWorldManager(int par1)
      {
@@ -210,7 +227,7 @@
      }
  
      /**
-@@ -697,7 +688,7 @@
+@@ -697,7 +691,7 @@
       */
      public EntityTracker getEntityTracker(int par1)
      {

forge/patches/minecraft_server/net/minecraft/src/NetServerHandler.java.patch

@@ -32,6 +32,15 @@
                  {
                      return;
                  }
+@@ -397,7 +403,7 @@
+ 
+             if (par1Packet14BlockDig.status == 0)
+             {
+-                if (var20 <= 16 && !var3)
++                if (var20 <= mcServer.spawnProtectionSize && !var3)
+                 {
+                     this.playerEntity.playerNetServerHandler.sendPacket(new Packet53BlockChange(var5, var6, var7, var2));
+                 }
 @@ -467,8 +473,9 @@
              {
                  var12 = var11;
@@ -40,7 +49,7 @@
 -            if (this.hasMoved && this.playerEntity.getDistanceSq((double)var5 + 0.5D, (double)var6 + 0.5D, (double)var7 + 0.5D) < 64.0D && (var12 > 16 || var9))
 +            double dist = playerEntity.itemInWorldManager.getBlockReachDistance() + 1;
 +            dist *= dist;
-+            if (this.hasMoved && this.playerEntity.getDistanceSq((double)var5 + 0.5D, (double)var6 + 0.5D, (double)var7 + 0.5D) < dist && (var12 > 16 || var9))
++            if (this.hasMoved && this.playerEntity.getDistanceSq((double)var5 + 0.5D, (double)var6 + 0.5D, (double)var7 + 0.5D) < dist && (var12 > mcServer.spawnProtectionSize || var9))
              {
                  this.playerEntity.itemInWorldManager.activeBlockOrUseItem(this.playerEntity, var2, var3, var5, var6, var7, var8);
              }

forge/patches/minecraft_server/net/minecraft/src/WorldServer.java.patch

@@ -60,3 +60,12 @@
              }
          }
  
+@@ -99,7 +117,7 @@
+             var6 = var5;
+         }
+ 
+-        return var6 > 16 || this.mcServer.configManager.isOp(par1EntityPlayer.username);
++        return var6 > mcServer.spawnProtectionSize || this.mcServer.configManager.isOp(par1EntityPlayer.username);
+     }
+ 
+     /**