AnvilGUI

Easily use anvil guis to get a user's input.

This project was made since there is no way to prompt users with an anvil input with the Spigot / Bukkit API. It requires interaction with NMS and that is a pain in plugins where users have different versions of the server running.

Requirements

Java 8 and Bukkit / Spigot. Most server versions in the Spigot Repository are supported.

My version isn't supported

If you are a developer, submit a pull request adding a wrapper module for your version. Otherwise, please create an issue on the issues tab.

Usage

As a dependency

AnvilGUI requires the usage of Maven or a Maven compatible build system.

<dependency>
    <groupId>net.wesjd</groupId>
    <artifactId>anvilgui</artifactId>
    <version>1.3.0-SNAPSHOT</version>
</dependency>

<repository>
    <id>codemc-snapshots</id>
    <url>https://repo.codemc.io/repository/maven-snapshots/</url>
</repository>

In your plugin

The AnvilGUI.Builder class is how you build an AnvilGUI. The following methods allow you to modify various parts of the displayed GUI. Javadocs are available here.

onClose(Consumer<Player>)

Takes a Consumer<Player> argument that is called when a player closes the anvil gui.

builder.onClose(player -> {                         
    player.sendMessage("You closed the inventory.");
});                                                 

onComplete(BiFunction<Player, String, AnvilGUI.Response>)

Takes a BiFunction<Player, String, AnvilGUI.Response> argument. The BiFunction is called when a player clicks the output slot. The supplied string is what the player has inputted in the renaming field of the anvil gui. You must return an AnvilGUI.Response, which can either be close() or text(String). Returning close() will close the inventory; returning text(String) will keep the inventory open and put the supplied String in the renaming field.

builder.onComplete((player, text) -> {                 
    if(text.equalsIgnoreCase("you")) {                 
        player.sendMessage("You have magical powers!");
        return AnvilGUI.Response.close();              
    } else {                                           
        return AnvilGUI.Response.text("Incorrect.");   
    }                                                  
});                                                    

preventClose()

Tells the AnvilGUI to prevent the user from pressing escape to close the inventory. Useful for situations like password input to play.

builder.preventClose();     

text(String)

Takes a String that contains what the initial text in the renaming field should be set to.

builder.text("What is the meaning of life?");     

item(ItemStack)

Takes a custom ItemStack to be placed in the input slot.

ItemStack stack = new ItemStack(Material.GOLD_BLOCK);
ItemMeta meta = stack.getItemMeta();                 
meta.setLore(Arrays.asList("Hi there"));             
stack.setItemMeta(meta); 
builder.item(stack);        

title(String)

Takes a String that will be used as the inventory title. Only displayed in Minecraft 1.14 and above.

builder.title("Enter your answer");

plugin(Plugin)

Takes the Plugin object that is making this anvil gui. It is needed to register listeners.

builder.plugin(pluginInstance);                 

open(Player)

Takes a Player that the anvil gui should be opened for. This method can be called multiple times without needing to create a new AnvilGUI.Builder object.

builder.open(player);

A full example combining all methods

new AnvilGUI.Builder()
    .onClose(player -> {                      //called when the inventory is closing
        player.sendMessage("You closed the inventory.");
    })
    .onComplete((player, text) -> {           //called when the inventory output slot is clicked
        if(text.equalsIgnoreCase("you")) {
            player.sendMessage("You have magical powers!");
            return AnvilGUI.Response.close();
        } else {
            return AnvilGUI.Response.text("Incorrect.");
        }
    })
    .preventClose()                           //prevents the inventory from being closed
    .text("What is the meaning of life?")     //sets the text the GUI should start with
    .item(new ItemStack(Material.GOLD_BLOCK)) //use a custom item for the first slot
    .title("Enter your answer.")              //set the title of the GUI (only works in 1.14+)
    .plugin(myPluginInstance)                 //set the plugin instance
    .open(myPlayer);                          //opens the GUI for the player provided

Compilation

Build with mvn clean install.

License

This project is licensed under the MIT License.