Set all util guis to 45 element size.

Add Glass Pane Borders to these guis.

src/main/java/world/bentobox/challenges/panel/util/ConfirmationGUI.java

@@ -5,9 +5,11 @@ import org.bukkit.Material;
 
 import java.util.function.Consumer;
 
+import world.bentobox.bentobox.api.panels.PanelItem;
 import world.bentobox.bentobox.api.panels.builders.PanelBuilder;
 import world.bentobox.bentobox.api.panels.builders.PanelItemBuilder;
 import world.bentobox.bentobox.api.user.User;
+import world.bentobox.challenges.utils.GuiUtils;
 
 
 /**
@@ -37,28 +39,65 @@ public class ConfirmationGUI
 	{
 		PanelBuilder panelBuilder = new PanelBuilder().user(this.user).name(this.user.getTranslation("challenges.gui.admin.confirm-title"));
 
-		panelBuilder.item(3, new PanelItemBuilder().
+		GuiUtils.fillBorder(panelBuilder, Material.BLUE_STAINED_GLASS_PANE);
-			name(this.user.getTranslation("challenges.gui.admin.buttons.proceed")).
-			icon(Material.GREEN_STAINED_GLASS_PANE).
-			clickHandler((panel, user1, clickType, index) -> {
-				this.consumer.accept(true);
-				return true;
-			}).
-			build());
 
-		panelBuilder.item(5, new PanelItemBuilder().
+		// Accept buttons
-			name(this.user.getTranslation("challenges.gui.admin.buttons.cancel")).
+		panelBuilder.item(10, this.getButton(true));
-			icon(Material.RED_STAINED_GLASS_PANE).
+		panelBuilder.item(11, this.getButton(true));
-			clickHandler((panel, user1, clickType, i) -> {
+		panelBuilder.item(12, this.getButton(true));
-				this.consumer.accept(false);
+
-				return true;
+		panelBuilder.item(19, this.getButton(true));
-			}).
+		panelBuilder.item(20, this.getButton(true));
-			build());
+		panelBuilder.item(21, this.getButton(true));
+
+		panelBuilder.item(28, this.getButton(true));
+		panelBuilder.item(29, this.getButton(true));
+		panelBuilder.item(30, this.getButton(true));
+
+		// Cancel Buttons
+		panelBuilder.item(14, this.getButton(false));
+		panelBuilder.item(15, this.getButton(false));
+		panelBuilder.item(16, this.getButton(false));
+
+		panelBuilder.item(23, this.getButton(false));
+		panelBuilder.item(24, this.getButton(false));
+		panelBuilder.item(25, this.getButton(false));
+
+		panelBuilder.item(32, this.getButton(false));
+		panelBuilder.item(33, this.getButton(false));
+		panelBuilder.item(34, this.getButton(false));
+
+		panelBuilder.item(44,
+			new PanelItemBuilder().
+				icon(Material.OAK_DOOR).
+				name(this.user.getTranslation("challenges.gui.buttons.return")).
+				clickHandler( (panel, user1, clickType, slot) -> {
+					this.consumer.accept(false);
+					return true;
+				}).build());
 
 		panelBuilder.build();
 	}
 
 
+	/**
+	 * This method creates button with requested value.
+	 * @param returnValue requested value
+	 * @return PanelItem button.
+	 */
+	private PanelItem getButton(boolean returnValue)
+	{
+		return new PanelItemBuilder().
+			name(this.user.getTranslation("challenges.gui.admin.buttons." + (returnValue ? "accept" : "cancel"))).
+			icon(returnValue ? Material.GRAY_STAINED_GLASS_PANE : Material.RED_STAINED_GLASS_PANE).
+			clickHandler((panel, user1, clickType, i) -> {
+				this.consumer.accept(returnValue);
+				return true;
+			}).
+			build();
+	}
+
+
 // ---------------------------------------------------------------------
 // Section: Variables
 // ---------------------------------------------------------------------

src/main/java/world/bentobox/challenges/panel/util/NumberGUI.java

@@ -13,6 +13,7 @@ import world.bentobox.bentobox.api.panels.PanelItem;
 import world.bentobox.bentobox.api.panels.builders.PanelBuilder;
 import world.bentobox.bentobox.api.panels.builders.PanelItemBuilder;
 import world.bentobox.bentobox.api.user.User;
+import world.bentobox.challenges.utils.GuiUtils;
 
 
 /**
@@ -54,11 +55,15 @@ public class NumberGUI
 	{
 		PanelBuilder panelBuilder = new PanelBuilder().user(this.user).name(this.user.getTranslation("challenges.gui.edit-number-title"));
 
+		GuiUtils.fillBorder(panelBuilder);
+
 		// Others
-		panelBuilder.item(0, this.getButton(Button.SAVE));
+		panelBuilder.item(1, this.getButton(Button.SAVE));
-		panelBuilder.item(1, this.getButton(Button.VALUE));
+
-		panelBuilder.item(8, this.getButton(Button.CANCEL));
+		panelBuilder.item(19, this.getButton(Button.VALUE));
-		panelBuilder.item(10, this.getButton(Button.INPUT));
+		panelBuilder.item(44, this.getButton(Button.CANCEL));
+
+		panelBuilder.item(2, this.getButton(Button.INPUT));
 
 		// operations
 		panelBuilder.item(3, this.getButton(Button.SET));
@@ -67,23 +72,23 @@ public class NumberGUI
 		panelBuilder.item(6, this.getButton(Button.MULTIPLY));
 
 		// Numbers
-		panelBuilder.item(20, this.createNumberButton(1));
+		panelBuilder.item(11, this.createNumberButton(1));
-		panelBuilder.item(21, this.createNumberButton(10));
+		panelBuilder.item(12, this.createNumberButton(10));
-		panelBuilder.item(22, this.createNumberButton(100));
+		panelBuilder.item(13, this.createNumberButton(100));
-		panelBuilder.item(23, this.createNumberButton(1000));
+		panelBuilder.item(14, this.createNumberButton(1000));
-		panelBuilder.item(24, this.createNumberButton(10000));
+		panelBuilder.item(15, this.createNumberButton(10000));
 
-		panelBuilder.item(29, this.createNumberButton(2));
+		panelBuilder.item(20, this.createNumberButton(2));
-		panelBuilder.item(30, this.createNumberButton(20));
+		panelBuilder.item(21, this.createNumberButton(20));
-		panelBuilder.item(31, this.createNumberButton(200));
+		panelBuilder.item(22, this.createNumberButton(200));
-		panelBuilder.item(32, this.createNumberButton(2000));
+		panelBuilder.item(23, this.createNumberButton(2000));
-		panelBuilder.item(33, this.createNumberButton(20000));
+		panelBuilder.item(24, this.createNumberButton(20000));
 
-		panelBuilder.item(38, this.createNumberButton(5));
+		panelBuilder.item(29, this.createNumberButton(5));
-		panelBuilder.item(39, this.createNumberButton(50));
+		panelBuilder.item(30, this.createNumberButton(50));
-		panelBuilder.item(40, this.createNumberButton(500));
+		panelBuilder.item(31, this.createNumberButton(500));
-		panelBuilder.item(41, this.createNumberButton(5000));
+		panelBuilder.item(32, this.createNumberButton(5000));
-		panelBuilder.item(42, this.createNumberButton(50000));
+		panelBuilder.item(33, this.createNumberButton(50000));
 
 		panelBuilder.build();
 	}
@@ -120,7 +125,7 @@ public class NumberGUI
 			{
 				name = this.user.getTranslation("challenges.gui.buttons.cancel");
 				description = Collections.emptyList();
-				icon = new ItemStack(Material.IRON_DOOR);
+				icon = new ItemStack(Material.OAK_DOOR);
 				clickHandler = (panel, user, clickType, slot) -> {
 					this.consumer.accept(false, this.value);
 					return true;

src/main/java/world/bentobox/challenges/panel/util/SelectBlocksGUI.java

@@ -73,6 +73,7 @@ public class SelectBlocksGUI
 		PanelBuilder panelBuilder = new PanelBuilder().user(this.user).
 			name(this.user.getTranslation("challenges.gui.admin.select-block"));
 
+		GuiUtils.fillBorder(panelBuilder, Material.BLUE_STAINED_GLASS_PANE);
 
 		final int MAX_ELEMENTS = 21;
 		final int correctPage;
@@ -93,7 +94,7 @@ public class SelectBlocksGUI
 		int entitiesIndex = MAX_ELEMENTS * correctPage;
 
 		// I want first row to be only for navigation and return button.
-		int index = 9;
+		int index = 10;
 
 		while (entitiesIndex < ((correctPage + 1) * MAX_ELEMENTS) &&
 			entitiesIndex < this.elements.size())
@@ -106,31 +107,44 @@ public class SelectBlocksGUI
 			index++;
 		}
 
-		// Add navigation Buttons
-		panelBuilder.item(3,
-			new PanelItemBuilder().
-				icon(Material.SIGN).
-				name(this.user.getTranslation("challenges.gui.buttons.previous")).
-				clickHandler( (panel, user1, clickType, slot) -> {
-					this.build(correctPage - 1);
-					return true;
-				}).build());
-
 		panelBuilder.item(4,
 			new PanelItemBuilder().
-				icon(Material.OAK_DOOR).
+				icon(Material.RED_STAINED_GLASS_PANE).
-				name(this.user.getTranslation("challenges.gui.buttons.return")).
+				name(this.user.getTranslation("challenges.gui.buttons.cancel")).
 				clickHandler( (panel, user1, clickType, slot) -> {
 					this.consumer.accept(false, null);
 					return true;
 				}).build());
 
-		panelBuilder.item(5,
+		if (this.elements.size() > MAX_ELEMENTS)
+		{
+			// Navigation buttons if necessary
+
+			panelBuilder.item(18,
+				new PanelItemBuilder().
+					icon(Material.SIGN).
+					name(this.user.getTranslation("challenges.gui.buttons.previous")).
+					clickHandler((panel, user1, clickType, slot) -> {
+						this.build(correctPage - 1);
+						return true;
+					}).build());
+
+			panelBuilder.item(26,
+				new PanelItemBuilder().
+					icon(Material.SIGN).
+					name(this.user.getTranslation("challenges.gui.buttons.next")).
+					clickHandler((panel, user1, clickType, slot) -> {
+						this.build(correctPage + 1);
+						return true;
+					}).build());
+		}
+
+		panelBuilder.item(44,
 			new PanelItemBuilder().
-				icon(Material.SIGN).
+				icon(Material.OAK_DOOR).
-				name(this.user.getTranslation("challenges.gui.buttons.next")).
+				name(this.user.getTranslation("challenges.gui.buttons.return")).
 				clickHandler( (panel, user1, clickType, slot) -> {
-					this.build(correctPage + 1);
+					this.consumer.accept(false, null);
 					return true;
 				}).build());
 

src/main/java/world/bentobox/challenges/panel/util/SelectChallengeGUI.java

@@ -10,6 +10,7 @@ import world.bentobox.bentobox.api.panels.builders.PanelBuilder;
 import world.bentobox.bentobox.api.panels.builders.PanelItemBuilder;
 import world.bentobox.bentobox.api.user.User;
 import world.bentobox.challenges.database.object.Challenges;
+import world.bentobox.challenges.utils.GuiUtils;
 
 
 /**
@@ -34,8 +35,10 @@ public class SelectChallengeGUI
 	{
 		PanelBuilder panelBuilder = new PanelBuilder().user(this.user).name(this.user.getTranslation("challenges.gui.choose-challenge-title"));
 
+		GuiUtils.fillBorder(panelBuilder, Material.BLUE_STAINED_GLASS_PANE);
+
 		// Maximal elements in page.
-		final int MAX_ELEMENTS = 36;
+		final int MAX_ELEMENTS = 21;
 
 		final int correctPage;
 
@@ -52,18 +55,57 @@ public class SelectChallengeGUI
 			correctPage = pageIndex;
 		}
 
-		// Navigation buttons
+		panelBuilder.item(4,
-
-		panelBuilder.item(3,
 			new PanelItemBuilder().
-				icon(Material.SIGN).
+				icon(Material.RED_STAINED_GLASS_PANE).
-				name(this.user.getTranslation("challenges.gui.buttons.previous")).
+				name(this.user.getTranslation("challenges.gui.buttons.return")).
 				clickHandler( (panel, user1, clickType, slot) -> {
-					this.build(correctPage - 1);
+					this.consumer.accept(false, null);
 					return true;
 				}).build());
 
-		panelBuilder.item(4,
+		if (this.challengesList.size() > MAX_ELEMENTS)
+		{
+			// Navigation buttons if necessary
+
+			panelBuilder.item(18,
+				new PanelItemBuilder().
+					icon(Material.SIGN).
+					name(this.user.getTranslation("challenges.gui.buttons.previous")).
+					clickHandler((panel, user1, clickType, slot) -> {
+						this.build(correctPage - 1);
+						return true;
+					}).build());
+
+			panelBuilder.item(26,
+				new PanelItemBuilder().
+					icon(Material.SIGN).
+					name(this.user.getTranslation("challenges.gui.buttons.next")).
+					clickHandler((panel, user1, clickType, slot) -> {
+						this.build(correctPage + 1);
+						return true;
+					}).build());
+		}
+
+		int challengesIndex = MAX_ELEMENTS * correctPage;
+
+		// I want first row to be only for navigation and return button.
+		int index = 10;
+
+		while (challengesIndex < ((correctPage + 1) * MAX_ELEMENTS) &&
+			challengesIndex < this.challengesList.size() &&
+			index < 36)
+		{
+			if (!panelBuilder.slotOccupied(index))
+			{
+				panelBuilder.item(index,
+					this.createChallengeButton(this.challengesList.get(challengesIndex++)));
+			}
+
+			index++;
+		}
+
+		panelBuilder.item(44,
 			new PanelItemBuilder().
 				icon(Material.OAK_DOOR).
 				name(this.user.getTranslation("challenges.gui.buttons.return")).
@@ -72,28 +114,6 @@ public class SelectChallengeGUI
 					return true;
 				}).build());
 
-		panelBuilder.item(5,
-			new PanelItemBuilder().
-				icon(Material.SIGN).
-				name(this.user.getTranslation("challenges.gui.buttons.next")).
-				clickHandler( (panel, user1, clickType, slot) -> {
-					this.build(correctPage + 1);
-					return true;
-				}).build());
-
-		int challengesIndex = MAX_ELEMENTS * correctPage;
-
-		// I want first row to be only for navigation and return button.
-		int index = 9;
-
-		while (challengesIndex < ((correctPage + 1) * MAX_ELEMENTS) &&
-			challengesIndex < this.challengesList.size())
-		{
-			panelBuilder.item(index++, this.createChallengeButton(this.challengesList.get(challengesIndex++)));
-		}
-
-		panelBuilder.build();
-
 		panelBuilder.build();
 	}
 

src/main/java/world/bentobox/challenges/panel/util/SelectEntityGUI.java

@@ -61,8 +61,10 @@ public class SelectEntityGUI
 	{
 		PanelBuilder panelBuilder = new PanelBuilder().user(this.user).name(this.user.getTranslation("challenges.gui.choose-entity-title"));
 
+		GuiUtils.fillBorder(panelBuilder, Material.BLUE_STAINED_GLASS_PANE);
+
 		// Maximal elements in page.
-		final int MAX_ELEMENTS = 36;
+		final int MAX_ELEMENTS = 21;
 
 		final int correctPage;
 
@@ -79,46 +81,65 @@ public class SelectEntityGUI
 			correctPage = pageIndex;
 		}
 
-		// Navigation buttons
-
-		panelBuilder.item(3,
-			new PanelItemBuilder().
-				icon(Material.SIGN).
-				name(this.user.getTranslation("challenges.gui.buttons.previous")).
-				clickHandler( (panel, user1, clickType, slot) -> {
-					this.build(correctPage - 1);
-					return true;
-				}).build());
-
 		panelBuilder.item(4,
 			new PanelItemBuilder().
-				icon(Material.OAK_DOOR).
+				icon(Material.RED_STAINED_GLASS_PANE).
-				name(this.user.getTranslation("challenges.gui.buttons.return")).
+				name(this.user.getTranslation("challenges.gui.buttons.cancel")).
 				clickHandler( (panel, user1, clickType, slot) -> {
 					this.consumer.accept(false, null);
 					return true;
 				}).build());
 
-		panelBuilder.item(5,
+		if (this.entities.size() > MAX_ELEMENTS)
-			new PanelItemBuilder().
+		{
-				icon(Material.SIGN).
+			// Navigation buttons if necessary
-				name(this.user.getTranslation("challenges.gui.buttons.next")).
+
-				clickHandler( (panel, user1, clickType, slot) -> {
+			panelBuilder.item(18,
-					this.build(correctPage + 1);
+				new PanelItemBuilder().
-					return true;
+					icon(Material.SIGN).
-				}).build());
+					name(this.user.getTranslation("challenges.gui.buttons.previous")).
+					clickHandler((panel, user1, clickType, slot) -> {
+						this.build(correctPage - 1);
+						return true;
+					}).build());
+
+			panelBuilder.item(26,
+				new PanelItemBuilder().
+					icon(Material.SIGN).
+					name(this.user.getTranslation("challenges.gui.buttons.next")).
+					clickHandler((panel, user1, clickType, slot) -> {
+						this.build(correctPage + 1);
+						return true;
+					}).build());
+		}
 
 		int entitiesIndex = MAX_ELEMENTS * correctPage;
 
 		// I want first row to be only for navigation and return button.
-		int index = 9;
+		int slot = 10;
 
 		while (entitiesIndex < ((correctPage + 1) * MAX_ELEMENTS) &&
-			entitiesIndex < this.entities.size())
+			entitiesIndex < this.entities.size() &&
+			slot < 36)
 		{
-			panelBuilder.item(index++, this.createEntityButton(this.entities.get(entitiesIndex++)));
+			if (!panelBuilder.slotOccupied(slot))
+			{
+				panelBuilder.item(slot,
+					this.createEntityButton(this.entities.get(entitiesIndex++)));
+			}
+
+			slot++;
 		}
 
+		panelBuilder.item(44,
+			new PanelItemBuilder().
+				icon(Material.OAK_DOOR).
+				name(this.user.getTranslation("challenges.gui.buttons.return")).
+				clickHandler( (panel, user1, clickType, i) -> {
+					this.consumer.accept(false, null);
+					return true;
+				}).build());
+
 		panelBuilder.build();
 	}
 

src/main/java/world/bentobox/challenges/panel/util/SelectEnvironmentGUI.java

@@ -10,6 +10,7 @@ import java.util.function.BiConsumer;
 import world.bentobox.bentobox.api.panels.builders.PanelBuilder;
 import world.bentobox.bentobox.api.panels.builders.PanelItemBuilder;
 import world.bentobox.bentobox.api.user.User;
+import world.bentobox.challenges.utils.GuiUtils;
 
 
 /**
@@ -35,6 +36,8 @@ public class SelectEnvironmentGUI
 	{
 		PanelBuilder panelBuilder = new PanelBuilder().user(this.user).name(this.user.getTranslation("challenges.gui.admin.environment-title"));
 
+		GuiUtils.fillBorder(panelBuilder, Material.BLUE_STAINED_GLASS_PANE);
+
 		panelBuilder.item(3, new PanelItemBuilder().
 			name(this.user.getTranslation("challenges.gui.admin.buttons.save")).
 			icon(Material.GREEN_STAINED_GLASS_PANE).
@@ -53,7 +56,7 @@ public class SelectEnvironmentGUI
 			}).
 			build());
 
-		panelBuilder.item(12, new PanelItemBuilder().
+		panelBuilder.item(20, new PanelItemBuilder().
 			name(this.user.getTranslation("challenges.gui.admin.buttons.nether")).
 			icon(Material.NETHERRACK).
 			clickHandler((panel, user1, clickType, i) -> {
@@ -71,7 +74,7 @@ public class SelectEnvironmentGUI
 			}).
 			glow(this.values.contains(World.Environment.NETHER)).
 			build());
-		panelBuilder.item(13, new PanelItemBuilder().
+		panelBuilder.item(22, new PanelItemBuilder().
 			name(this.user.getTranslation("challenges.gui.admin.buttons.normal")).
 			icon(Material.DIRT).
 			clickHandler((panel, user1, clickType, i) -> {
@@ -89,7 +92,7 @@ public class SelectEnvironmentGUI
 			}).
 			glow(this.values.contains(World.Environment.NORMAL)).
 			build());
-		panelBuilder.item(14, new PanelItemBuilder().
+		panelBuilder.item(24, new PanelItemBuilder().
 			name(this.user.getTranslation("challenges.gui.admin.buttons.end")).
 			icon(Material.END_STONE).
 			clickHandler((panel, user1, clickType, i) -> {
@@ -108,6 +111,16 @@ public class SelectEnvironmentGUI
 			glow(this.values.contains(World.Environment.THE_END)).
 			build());
 
+
+		panelBuilder.item(44, new PanelItemBuilder().
+			name(this.user.getTranslation("challenges.gui.admin.buttons.return")).
+			icon(Material.OAK_DOOR).
+			clickHandler((panel, user1, clickType, i) -> {
+				this.consumer.accept(false, Collections.emptySet());
+				return true;
+			}).
+			build());
+
 		panelBuilder.build();
 	}
 

src/main/java/world/bentobox/challenges/panel/util/StringListGUI.java

@@ -3,10 +3,7 @@ package world.bentobox.challenges.panel.util;
 
 import org.bukkit.Material;
 import org.bukkit.inventory.ItemStack;
-import java.util.ArrayList;
+import java.util.*;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.List;
 import java.util.function.BiConsumer;
 
 import net.wesjd.anvilgui.AnvilGUI;
@@ -15,6 +12,7 @@ import world.bentobox.bentobox.api.panels.PanelItem;
 import world.bentobox.bentobox.api.panels.builders.PanelBuilder;
 import world.bentobox.bentobox.api.panels.builders.PanelItemBuilder;
 import world.bentobox.bentobox.api.user.User;
+import world.bentobox.challenges.utils.GuiUtils;
 
 
 /**
@@ -35,7 +33,7 @@ public class StringListGUI
 		this.user = user;
 		this.value = value;
 
-		if (this.value.size() > 18)
+		if (this.value.size() > 21)
 		{
 			// TODO: throw error that so large list cannot be edited.
 			this.consumer.accept(false, this.value);
@@ -52,20 +50,31 @@ public class StringListGUI
 	 */
 	private void build()
 	{
-		PanelBuilder panelBuilder = new PanelBuilder().user(this.user).name(this.user.getTranslation("challenges.gui.text-edit-title"));
+		PanelBuilder panelBuilder = new PanelBuilder().user(this.user).
+			name(this.user.getTranslation("challenges.gui.text-edit-title"));
 
-		panelBuilder.item(0, this.getButton(Button.SAVE));
+		GuiUtils.fillBorder(panelBuilder, Material.BLACK_STAINED_GLASS_PANE);
-		panelBuilder.item(1, this.getButton(Button.VALUE));
 
-		panelBuilder.item(3, this.getButton(Button.ADD));
+		panelBuilder.item(1, this.getButton(Button.SAVE));
-		panelBuilder.item(4, this.getButton(Button.REMOVE));
+		panelBuilder.item(2, this.getButton(Button.VALUE));
-		panelBuilder.item(4, this.getButton(Button.CLEAR));
 
-		panelBuilder.item(8, this.getButton(Button.CANCEL));
+		panelBuilder.item(4, this.getButton(Button.ADD));
+		panelBuilder.item(5, this.getButton(Button.REMOVE));
+		panelBuilder.item(6, this.getButton(Button.CLEAR));
 
-		for (int i = 0; i < this.value.size(); i++)
+		panelBuilder.item(44, this.getButton(Button.CANCEL));
+
+		int slot = 10;
+
+		for (int stringIndex = 0; stringIndex < this.value.size() && slot < 36; stringIndex++)
 		{
-			panelBuilder.item(this.createStringElement(this.value.get(i), i));
+			if (!panelBuilder.slotOccupied(slot))
+			{
+				panelBuilder.item(slot,
+					this.createStringElement(this.value.get(stringIndex), stringIndex));
+			}
+
+			slot++;
 		}
 
 		panelBuilder.build();
@@ -90,7 +99,7 @@ public class StringListGUI
 			{
 				name = this.user.getTranslation("challenges.gui.buttons.save");
 				description = Collections.emptyList();
-				icon = new ItemStack(Material.COMMAND_BLOCK);
+				icon = new ItemStack(Material.GREEN_STAINED_GLASS_PANE);
 				clickHandler = (panel, user, clickType, slot) -> {
 					this.consumer.accept(true, this.value);
 
@@ -102,7 +111,7 @@ public class StringListGUI
 			{
 				name = this.user.getTranslation("challenges.gui.buttons.cancel");
 				description = Collections.emptyList();
-				icon = new ItemStack(Material.IRON_DOOR);
+				icon = new ItemStack(Material.OAK_DOOR);
 				clickHandler = (panel, user, clickType, slot) -> {
 					this.consumer.accept(false, this.value);