Support for pages and config file value change from data to damage

- Automatically calculates the number of pages by seeing how many empty
slots are available
- Forwards and backwards buttons are now functional
- The configuration file changes from setting the value of data to set
things such as stained glass colors to damage to follow deluxe shop's
setup

build.gradle

@@ -4,7 +4,7 @@ plugins {
 }
 
 group 'pw.hamzantal'
-version '1.0-SNAPSHOT'
+version '1.0'
 
 repositories {
     mavenCentral()

compile.sh

@@ -2,4 +2,6 @@
 
 ./gradlew shadowJar
 
-mv build/libs/ShopReborn-1.0-SNAPSHOT.jar ~/Desktop/CodeRelated/server/plugins/
+mv build/libs/ShopReborn-1.0.jar ~/Desktop/CodeRelated/server/plugins/
+
+say up

src/main/kotlin/pw.hamzantal.shopreborn/ClickListeners.kt

@@ -9,9 +9,9 @@ fun baseListener(e: InventoryClickEvent) {
         mainClick(e)
         return
     }
-    if (Configurations.shops.any { it.inventory == e.inventory }) {
-        shopClick(e)
-    }
+
+    val shop = Configurations.shops.firstOrNull { it.inventories.contains(e.inventory)} ?: return
+        shopClick(e, shop)
 }
 
 fun mainClick(e: InventoryClickEvent) {
@@ -27,21 +27,32 @@ fun mainClick(e: InventoryClickEvent) {
     }
 }
 
-fun shopClick(e: InventoryClickEvent) {
+fun shopClick(e: InventoryClickEvent, shop: ShopConfig) {
     e.isCancelled = true
     if (e.rawSlot > e.inventory.size) return
 
     val main = Configurations.main
     val p = e.whoClicked as Player
 
-    val shop = Configurations.shops.firstOrNull { it.inventory == e.inventory }?: return
-
     //Check Menu Buttons
     if (e.currentItem == main.buttons.menu) {
         p.openInventory(main.inventory)
         return
     }
 
+    if (e.currentItem == main.buttons.forward) {
+        val current = shop.inventories.indexOf(e.inventory)
+        if (current + 1 == shop.inventories.size) return
+        p.openInventory(shop.inventories[current + 1])
+        return
+    }
+
+    if(e.currentItem == main.buttons.previous) {
+        val current = shop.inventories.indexOf(e.inventory)
+        if (current == 0) return
+        p.openInventory(shop.inventories[current - 1])
+    }
+
     //Buy / Sell Item
     val block = shop.blocks.firstOrNull { it.item == e.currentItem } ?: return
 

src/main/kotlin/pw.hamzantal.shopreborn/Configuration.kt

@@ -9,7 +9,8 @@ import org.bukkit.configuration.ConfigurationSection
 import org.bukkit.inventory.Inventory
 import org.bukkit.inventory.ItemStack
 import java.io.File
-import java.lang.IllegalArgumentException
+import kotlin.math.ceil
+import kotlin.math.max
 
 object Configurations {
     var dataFolder = File("")
@@ -94,7 +95,7 @@ class ShopConfig(val name: String, file: File) : ConfigFile(file) {
     }
 
     val title by string("name", "&a$name")
-    val size by int("size", 9)
+    val size by int("size", 18)
     val menuRow by int("buttons.menuRow", -1)
     val blocksRaw by section("items")
 
@@ -123,9 +124,22 @@ class ShopConfig(val name: String, file: File) : ConfigFile(file) {
         }
         ?: listOf()
 
-    val inventory: Inventory = Bukkit.createInventory(null, size, title.c).apply {
-        //Set Single Row Menu
-        if (menuRow != -1) {
+    val pages = ceil(blocks.size.toDouble() / (size - 9).toDouble()).toInt()
+    val inventories = mutableListOf<Inventory>()
+
+    val inventory: Inventory
+    init {
+        inventory = makeInventory(size, title, menuRow, blocks, 1)
+        inventories += inventory
+        for (i in 2..pages) {
+            inventories += makeInventory(size, title, menuRow, blocks, i)
+        }
+    }
+}
+
+fun makeInventory(size: Int, title: String, menuRow: Int = -1, items: List<ShopConfig.Block>, page: Int): Inventory {
+    return Bukkit.createInventory(null, size, title.c).apply {
+        if (menuRow > 0) {
             val buttons = Configurations.main.buttons
             for (i in menuRow until menuRow + 9) {
                 setItem(i, buttons.pane)
@@ -135,15 +149,17 @@ class ShopConfig(val name: String, file: File) : ConfigFile(file) {
             setItem(menuRow + 8, buttons.forward)
         }
 
-        blocks.forEach {
-            setItem(firstEmpty(), it.item)
+        val dropping = (page - 1) * (size - max(0, menuRow))
+        items.drop(dropping).forEach {
+            if (firstEmpty() != -1) setItem(firstEmpty(), it.item)
+            else return@apply
         }
     }
 }
 
 fun ConfigurationSection.asItem(buy: Int = -1, sell: Int = -1): ItemStack {
     val material = Material.valueOf(getString("material").toUpperCase())
-    val item = ItemStack(material, getInt("quantity", 1), getInt("data", 0).toShort())
+    val item = ItemStack(material, getInt("quantity", 1), getInt("damage", 0).toShort())
 
     item.itemMeta = item.itemMeta.apply {
         displayName = getString("name", "").c

src/main/kotlin/pw.hamzantal.shopreborn/ShopReborn.kt

@@ -12,7 +12,6 @@ class ShopReborn : JavaPlugin() {
     override fun onEnable() {
         saveDefaultConfig()
 
-
         Configurations.dataFolder = dataFolder
         Configurations.main =
             MainConfig(dataFolder["config.yml"])
@@ -22,7 +21,6 @@ class ShopReborn : JavaPlugin() {
 
         command("shop") { sender, args ->
             if (sender !is Player) return@command
-            info("a")
             if (args.isEmpty()) {
                 sender.openInventory(Configurations.main.inventory)
                 return@command

src/main/resources/config.yml

@@ -1,7 +1,7 @@
 buttons:
   pane:
     material: STAINED_GLASS_PANE
-    data: 7 # Gray
+    damage: 7 # Gray
   previous:
     material: FEATHER
     name: "&ePrevious Page"