Using_Dialogue.md

Using dialogue in your game

It's up to you to implement the actual dialogue rendering and input control but there are a few example balloons included to get you started.

To use the built-in example balloon you can call DialogueManager.show_example_dialogue_balloon(resource, title) with a dialogue resource and the title you want to start from.

Once you get to the stage of building your own balloon you'll need to know how to get a line of dialogue and how to use the dialogue label node.

Getting a line of dialogue

A global called DialogueManager is available to provide lines of dialogue.

To request a line, call await DialogueManager.get_next_dialogue_line(resource, title) with a dialogue resource (*.dialogue file) and a starting title (you can also call get_next_dialogue_line on the resource directly, see below). This will traverse each line (running mutations along the way) and returning the first printable line of dialogue.

For example, if you have some dialogue like:

~ start

Nathan: Hi! I'm Nathan.
Nathan: Here are some options.
- First one
	Nathan: You picked the first one.
- Second one
	Nathan: You picked the second one.

And then in your game:

var resource = load("res://some_dialogue.dialogue")
# then
var dialogue_line = await DialogueManager.get_next_dialogue_line(resource, "start")
# or
var dialogue_line = await resource.get_next_dialogue_line("start")

Then dialogue_line would now hold a dictionary containing information for the line Nathan: Hi! I'm Nathan.

To get the next line of dialogue you can call get_next_dialogue_line again with dialogue_line.next_id as the title:

dialogue_line = await DialogueManager.get_next_dialogue_line(resource, dialogue_line.next_id)
# or
dialogue_line = await resource.get_next_dialogue_line(dialogue_line.next_id)

Now dialogue_line holds a dictionary containing the information for the line Nathan: Here are some options.. This dictionary also contains the list of response options.

Each option also contains a next_id property that can be used to continue along that branch.

For more information about the dictionary see the API documentation.

DialogueLabel node

The addon provides a DialogueLabel node (an extension of the RichTextLabel node) which helps with rendering a line of dialogue text.

This node is given a dialogue_line dictionary (mentioned above) and uses its properties to work out how to handling typing out the dialogue. It will automatically handle any bb_code, wait, speed, and inline_mutation references.

Use type_out() to start typing out the text. The label will emit a finished_typing signal when it has finished typing.

The label will emit a paused_typing signal (along with the duration of the pause) when there is a pause in the typing and a spoke signal (along with the letter typed and the current speed) when a letter was just typed.

Generating Dialogue Resources at runtime

If you need to construct a dialogue resource at runtime you can use create_resource_from_text(string):

var resource = DialogueManager.create_resource_from_text("~ title\nCharacter: Hello!")

This will run the given text through the parser.

If there were syntax errors the method will fail.

If there were no errors then you can use this ephemeral resource like normal:

var dialogue_line = await DialogueManager.get_next_dialogue_line("title", resource)