#11 dialogue player

Cargo.toml

@@ -12,6 +12,7 @@ opt-level = 3
 [dependencies]
 bevy = { version = "0.7.0", features = ["mp3"] }
 bevy-inspector-egui = "0.11.0"
+bevy_egui = "0.14.0"
 bevy_ecs_ldtk = "0.3.0"
 paste = "1.0.7"
 strum = "0.24.1"
@@ -25,5 +26,8 @@ heron = { version = "3.1.0", features = ["2d"] }
 once_cell = "1.10.0"
 rust-i18n = "0.6.1"
 
-ron = "0.7.1"
+ron = "0.8.0"
 serde = "1.0.139"
+
+dlg = "0.1"
+anyhow = "1.0.62"

assets/dialogues/ru/verres-home/test.dlg

@@ -0,0 +1,37 @@
+@ Alice came into the room and waved her hand
+
+@alice Hi, Bob!
+
+@bob Hi!
+
+@alice What are you going to do?
+
+// :menu What should I say to her? {
+//     #walk I'm going to go for a walk
+//     I want to sleep {
+//         @alice Oh, okay. Then I'll come back later. Sweet dreams
+
+//         @bob Are made of this...
+//     }
+// }
+
+:menu What should I say to her?
+:opt(#walk) I'm going to go for a walk
+:opt(#sleep) I want to sleep
+
+#walk
+
+@alice 
+
+Great! May I come with you?
+
+@bob Sure!
+
+@ You went for a walk and had a good time
+
+
+#sleep
+
+@alice Oh, okay. Then I'll come back later. Sweet dreams
+
+@bob Are made of this...

src/bevy_dlg/mod.rs

@@ -0,0 +1,36 @@
+// TODO: Move to separate crate
+
+use anyhow::*;
+use bevy::{
+    asset::{AssetLoader, LoadContext, LoadedAsset},
+    reflect::TypeUuid,
+    utils::BoxedFuture,
+};
+use dlg::prelude::Dialog;
+use std::str::FromStr;
+
+#[derive(TypeUuid, Default)]
+#[uuid = "a914688f-8e8e-4584-8eca-8e6322e1de3b"]
+pub struct DialogAsset(pub Dialog);
+
+impl AssetLoader for DialogAsset {
+    fn load<'a>(
+        &'a self,
+        bytes: &'a [u8],
+        load_context: &'a mut LoadContext,
+    ) -> BoxedFuture<'a, anyhow::Result<()>> {
+        Box::pin(async move {
+            let raw = String::from_utf8(Vec::from(bytes))?;
+
+            let dialog = Dialog::from_str(&raw).map_err(|_| anyhow!("can't parse dialog"))?;
+            let res = DialogAsset(dialog);
+
+            load_context.set_default_asset(LoadedAsset::new(res));
+            Ok(())
+        })
+    }
+
+    fn extensions(&self) -> &[&str] {
+        &["dlg"]
+    }
+}