diff --git a/.idea/runConfigurations/Run_Server.xml b/.idea/runConfigurations/Run_Server.xml
index 1d92b8a..db34fec 100644
--- a/.idea/runConfigurations/Run_Server.xml
+++ b/.idea/runConfigurations/Run_Server.xml
@@ -1,9 +1,9 @@
 <component name='ProjectRunConfigurationManager'>
   <configuration default='false' name='Run Server' type='JarApplication' factoryName='JAR Application' singleton='true'>
-    <option name='JAR_PATH' value='/home/reya/IdeaProjects/minecraftportal/build/server/1.13.2/core.jar' />
+    <option name='JAR_PATH' value='/home/reya/IdeaProjects/minecraftportal/build/server/1.12.2/core.jar' />
     <option name='VM_PARAMETERS' value='-Dfile.encoding=UTF-8 -Xmx1G' />
     <option name='PROGRAM_PARAMETERS' value='' />
-    <option name='WORKING_DIRECTORY' value='/home/reya/IdeaProjects/minecraftportal/build/server/1.13.2' />
+    <option name='WORKING_DIRECTORY' value='/home/reya/IdeaProjects/minecraftportal/build/server/1.12.2' />
     <envs />
     <method>
       <option name='Gradle.BeforeRunTask' enabled='true' tasks='prepareServer' externalProjectPath='$PROJECT_DIR$' vmOptions='' scriptParameters='' />
diff --git a/build.gradle b/build.gradle
index 4cba9a0..7d2567e 100644
--- a/build.gradle
+++ b/build.gradle
@@ -25,7 +25,7 @@ dependencies {
 }
 
 bukkit {
-    version = "1.13.2"
+    version = "1.12.2"
 
     // Attributes for plugin.yml
     meta {
diff --git a/src/main/kotlin/net/deliciousreya/minecraftportal/MinecraftPortalPlugin.kt b/src/main/kotlin/net/deliciousreya/minecraftportal/MinecraftPortalPlugin.kt
index acf1e62..f7dc4c2 100644
--- a/src/main/kotlin/net/deliciousreya/minecraftportal/MinecraftPortalPlugin.kt
+++ b/src/main/kotlin/net/deliciousreya/minecraftportal/MinecraftPortalPlugin.kt
@@ -1,19 +1,31 @@
 package net.deliciousreya.minecraftportal
 
-import org.bukkit.plugin.PluginDescriptionFile
+import org.bukkit.Material
+import org.bukkit.event.EventHandler
+import org.bukkit.event.block.BlockPlaceEvent
+import org.bukkit.event.player.PlayerJoinEvent
+import org.bukkit.inventory.ItemStack
 import org.bukkit.plugin.java.JavaPlugin
-import org.bukkit.plugin.java.JavaPluginLoader
-import java.io.File
 
-class MinecraftPortalPlugin(
-    loader: JavaPluginLoader,
-    description: PluginDescriptionFile,
-    dataFolder: File,
-    file: File
-) : JavaPlugin(loader, description, dataFolder, file)
+class MinecraftPortalPlugin() : JavaPlugin()
 {
     override fun onEnable() {
         super.onEnable()
         logger.info("Loaded the portal plugin!")
+        for (player in server.onlinePlayers) {
+            player.inventory.setItem(0, ItemStack(Material.GLASS, 10))
+        }
+    }
+
+    @EventHandler
+    fun onPlayerJoin(e: PlayerJoinEvent) {
+        e.player.inventory.setItem(0, ItemStack(Material.GLASS, 10))
+    }
+
+    @EventHandler
+    fun onBlockPlaced(e: BlockPlaceEvent) {
+        if (e.block.type.equals(Material.GLASS)) {
+            logger.info("put down glass at " + e.block.location + " in " + e.block.world)
+        }
     }
 }
\ No newline at end of file