Removes the temporary ignoreEntrances option and replaces it with proper snowman blocking. Fixes #3

Allows new gates to contain water as underwater gates are a thing now
Adds a check to prevent snowmen from placing snow inside a portal's entrance
Removes the ignoreEntrances option everywhere

src/main/java/net/knarcraft/stargate/Stargate.java

@@ -68,8 +68,6 @@ public class Stargate extends JavaPlugin {
     public static boolean enableBungee = true;
     public static boolean verifyPortals = true;
     private static boolean destroyExplosion = false;
-    //Temp workaround for snowmen, don't check gate entrance
-    public static boolean ignoreEntrance = false;
     private String dataFolderPath;
 
     public static ChatColor signColor;
@@ -453,7 +451,6 @@ public class Stargate extends JavaPlugin {
         //Integrity
         protectEntrance = newConfig.getBoolean("gates.integrity.protectEntrance");
         verifyPortals = newConfig.getBoolean("gates.integrity.verifyPortals");
-        ignoreEntrance = newConfig.getBoolean("gates.integrity.ignoreEntrance");
         destroyExplosion = newConfig.getBoolean("gates.integrity.destroyedByExplosion");
 
         //Cosmetic

src/main/java/net/knarcraft/stargate/listener/BlockEventListener.java

@@ -12,6 +12,7 @@ import org.bukkit.Material;
 import org.bukkit.block.Block;
 import org.bukkit.block.data.type.WallSign;
 import org.bukkit.entity.Player;
+import org.bukkit.entity.Snowman;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
@@ -21,6 +22,7 @@ import org.bukkit.event.block.BlockPhysicsEvent;
 import org.bukkit.event.block.BlockPistonEvent;
 import org.bukkit.event.block.BlockPistonExtendEvent;
 import org.bukkit.event.block.BlockPistonRetractEvent;
+import org.bukkit.event.block.EntityBlockFormEvent;
 import org.bukkit.event.block.SignChangeEvent;
 
 import java.util.List;
@@ -31,6 +33,26 @@ import java.util.List;
 @SuppressWarnings("unused")
 public class BlockEventListener implements Listener {
 
+    /**
+     * Detects snowmen ruining portals
+     *
+     * @param event <p>The triggered event</p>
+     */
+    @EventHandler
+    public void onBlockFormedByEntity(EntityBlockFormEvent event) {
+        if (event.isCancelled() || (!Stargate.protectEntrance && !Stargate.verifyPortals)) {
+            return;
+        }
+        //We are only interested in snowman events
+        if (!(event.getEntity() instanceof Snowman)) {
+            return;
+        }
+        //Cancel the event if a snowman is trying to place snow in the portal's entrance
+        if (PortalHandler.getByEntrance(event.getBlock()) != null) {
+            event.setCancelled(true);
+        }
+    }
+
     /**
      * Detects sign changes to detect if the user is creating a new gate
      *
@@ -66,7 +88,7 @@ public class BlockEventListener implements Listener {
      */
     @EventHandler(priority = EventPriority.HIGHEST)
     public void onBlockBreak(BlockBreakEvent event) {
-        if (event.isCancelled()) {
+        if (event.isCancelled() || !Stargate.protectEntrance) {
             return;
         }
         Block block = event.getBlock();
@@ -74,7 +96,7 @@ public class BlockEventListener implements Listener {
 
         //Decide if a portal is broken
         Portal portal = PortalHandler.getByBlock(block);
-        if (portal == null && Stargate.protectEntrance) {
+        if (portal == null) {
             portal = PortalHandler.getByEntrance(block);
         }
         if (portal == null) {

src/main/java/net/knarcraft/stargate/portal/Gate.java

@@ -214,16 +214,13 @@ public class Gate {
      * @return <p>Whether this is used in the context of creating a new gate</p>
      */
     private boolean verifyGateEntrancesMatch(BlockLocation topLeft, double yaw, boolean onCreate) {
-        if (Stargate.ignoreEntrance) {
-            return true;
-        }
         Stargate.debug("verifyGateEntrancesMatch", String.valueOf(topLeft));
         for (RelativeBlockVector entranceVector : layout.getEntrances()) {
             Stargate.debug("verifyGateEntrancesMatch", String.valueOf(entranceVector));
             Material type = getBlockAt(topLeft, entranceVector, yaw).getType();
 
-            //Ignore entrance if it's air, and we're creating a new gate
-            if (onCreate && type == Material.AIR) {
+            //Ignore entrance if it's air or water, and we're creating a new gate
+            if (onCreate && (type == Material.AIR || type == Material.WATER)) {
                 continue;
             }
 

src/main/java/net/knarcraft/stargate/portal/PortalHandler.java

@@ -52,6 +52,12 @@ public class PortalHandler {
 
     }
 
+    /**
+     * Gets names of all portals within a network
+     *
+     * @param network <p>The network to get portals from</p>
+     * @return <p>A list of portal names</p>
+     */
     public static List<String> getNetwork(String network) {
         return allPortalNetworks.get(network.toLowerCase());
     }