Brücke zu Godot und Godot-Projekt

Die GDExtension grovewright-bridge gibt den Kern als Klasse GwSession
an GDScript weiter: Befehle einreihen, einen Takt ausführen, Karte und
Inventar lesen, speichern, laden, aufzeichnen. Eine Panik im Kern macht
die Sitzung defekt, statt einen guten Speicherstand zu überschreiben.
Das Godot-Projekt bekommt einen Testläufer, der auch Laufzeitfehler als
Fehlschlag zählt.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>

bridge/src/events.rs

@@ -0,0 +1,46 @@
+//! Turns events of the core into dictionaries that GDScript can read.
+
+use godot::prelude::*;
+use grovewright_core::world::Event;
+
+/// One event as a dictionary with a `type` entry and the event's fields.
+pub fn to_dictionary(event: &Event) -> VarDictionary {
+    match event {
+        Event::PlayerJoined { player } => vdict! {
+            "type" => "player_joined",
+            "player" => i64::from(player.0),
+        },
+        Event::PlayerLeft { player } => vdict! {
+            "type" => "player_left",
+            "player" => i64::from(player.0),
+        },
+        Event::JoinRefused { .. } => vdict! {
+            "type" => "join_refused",
+        },
+        Event::TileHit { player, pos } => vdict! {
+            "type" => "tile_hit",
+            "player" => i64::from(player.0),
+            "x" => i64::from(pos.x),
+            "y" => i64::from(pos.y),
+        },
+        Event::TileChanged { pos } => vdict! {
+            "type" => "tile_changed",
+            "x" => i64::from(pos.x),
+            "y" => i64::from(pos.y),
+        },
+        Event::ItemGained {
+            player,
+            item,
+            count,
+        } => vdict! {
+            "type" => "item_gained",
+            "player" => i64::from(player.0),
+            "item" => i64::from(item.0),
+            "count" => i64::from(*count),
+        },
+        Event::InventoryFull { player } => vdict! {
+            "type" => "inventory_full",
+            "player" => i64::from(player.0),
+        },
+    }
+}