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//! NPCs containing their own individual yarnspinner contexts
// TODO: Split off into own crate?
use std::sync::{Arc, Mutex};
use bevy::{prelude::*, utils::HashMap};
use lazy_static::lazy_static;
use resources::FunctionLibrary;
use yarnspinner::{core::{LineId, YarnValue}, runtime::Dialogue};
pub mod components;
pub mod events;
pub mod resources;
mod systems;
lazy_static! {
/// Custom yarnspinner variable storage
/// Stores variables as <instance>.<varname>
/// Global variables are stored in the "global" instance
pub static ref DIRWORLD_VARIABLE_STORAGE: Arc<Mutex<DirworldVariableStorage>> =
Arc::new(Mutex::new(DirworldVariableStorage::default()));
}
/// Plugin which controls the behavior of actors
pub struct ActorPlugin {
pub custom_function_registration: Option<fn(&mut FunctionLibrary)>,
}
impl Plugin for ActorPlugin {
fn build(&self, app: &mut App) {
let mut function_library = FunctionLibrary::default();
function_library.add_function("get_string", get_string);
function_library.add_function("get_number", get_number);
function_library.add_function("get_bool", get_bool);
if let Some(custom_function_registration) = &self.custom_function_registration {
(custom_function_registration)(&mut function_library)
}
app.add_systems(
Update,
(systems::handle_dialog_initiation, systems::progress_dialog, systems::handle_variable_set_commands),
)
.insert_resource(function_library)
.add_event::<events::ContinueDialogueEvent>()
.add_event::<events::DialogueEvent>();
}
}
fn get_string(instance_name: &str, var_name: &str) -> String {
if let Some(YarnValue::String(value)) = DIRWORLD_VARIABLE_STORAGE
.lock()
.unwrap()
.get(instance_name, var_name)
{
value
} else {
"".into()
}
}
fn get_number(instance_name: &str, var_name: &str) -> f32 {
if let Some(YarnValue::Number(value)) = DIRWORLD_VARIABLE_STORAGE
.lock()
.unwrap()
.get(instance_name, var_name)
{
value
} else {
0.0
}
}
fn get_bool(instance_name: &str, var_name: &str) -> bool {
if let Some(YarnValue::Boolean(value)) = DIRWORLD_VARIABLE_STORAGE
.lock()
.unwrap()
.get(instance_name, var_name)
{
value
} else {
false
}
}
/// Variable Storage
#[derive(Default, Debug)]
pub struct DirworldVariableStorage(pub HashMap<String, YarnValue>);
impl DirworldVariableStorage {
/// Set value of instance variable (use "global" for global)
pub fn set(&mut self, instance_name: &str, var_name: &str, value: YarnValue) {
self.0.insert(format!("{instance_name}.{var_name}"), value);
}
/// Get value of instance variable (use "global" for global)
pub fn get(&self, instance_name: &str, var_name: &str) -> Option<YarnValue> {
self.0.get(&format!("{instance_name}.{var_name}")).cloned()
}
}
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