object scripting wip

src/game.rs

@@ -1,5 +1,6 @@
 use eframe::egui::Color32;
-use serde::Deserialize;
+use serde::{Deserialize, Serialize};
+use std::collections::HashMap;
 
 /// The visual representation of a single board cell.
 ///
@@ -87,7 +88,7 @@ pub struct Behavior {
 /// rather than from this enum. [`Board::is_passable`] will need a special branch
 /// at that point. `ErrorBlock` is used as a sentinel for unrecognized archetype
 /// names in map files — it should never appear in a valid board.
-#[derive(Copy, Clone, Debug, PartialEq, Eq)]
+#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 pub enum Archetype {
     /// An open cell; the player and other entities can pass through it.
     Empty,
@@ -196,17 +197,23 @@ pub const ALL_ARCHETYPES: &[Archetype] = &[Archetype::Empty, Archetype::Wall, Ar
 /// tile. Objects are parsed from `[[objects]]` entries in `.toml` map files
 /// and stored on [`Board`].
 ///
+/// Script text lives in [`Board::scripts`]; this struct holds only the name
+/// used to look it up. Two `ObjectDef`s with the same `script_name` share
+/// source text but will run with independent Rhai scopes (independent local
+/// variables) when the scripting runtime is wired.
+///
 /// **Not yet runtime-wired.** Objects are loaded and stored but their scripts
 /// are not yet executed. Scripting dispatch is a future feature.
-#[derive(Deserialize)]
-#[allow(dead_code)]
+#[derive(Deserialize, Serialize)]
 pub struct ObjectDef {
     /// Column of this object on the board (0-indexed).
     pub x: usize,
     /// Row of this object on the board (0-indexed).
     pub y: usize,
-    /// The Rhai script source for this object.
-    pub script: String,
+    /// Name of the Rhai script in [`Board::scripts`] that drives this object.
+    /// `None` means this object has no script yet.
+    #[serde(default)]
+    pub script_name: Option<String>,
 }
 
 /// A portal that teleports the player to a named entry point on another board.
@@ -217,8 +224,7 @@ pub struct ObjectDef {
 ///
 /// **Not yet runtime-wired.** Portal navigation (multi-board loading and
 /// switching) is a future feature.
-#[derive(Deserialize)]
-#[allow(dead_code)]
+#[derive(Deserialize, Serialize)]
 pub struct PortalDef {
     /// Column of this portal on the board (0-indexed).
     pub x: usize,
@@ -262,8 +268,9 @@ pub struct Player {
 /// separate element palette or index indirection. Access cells with
 /// [`Board::get`] and [`Board::get_mut`] using `(x, y)` coordinates.
 /// Use [`Board::is_passable`] for collision checks.
-#[allow(dead_code)]
 pub struct Board {
+    /// Human-readable name for this board, loaded from the map file and round-tripped on save.
+    pub name: String,
     /// Width of the board in cells.
     pub width: usize,
     /// Height of the board in cells.
@@ -279,6 +286,17 @@ pub struct Board {
     pub portals: Vec<PortalDef>,
     /// Optional font override for this board. When `None`, the app default is used.
     pub font: Option<FontSpec>,
+    /// Named Rhai scripts available on this board: script name → source text.
+    ///
+    /// All script source lives here; [`ObjectDef`]s and [`Board::board_script_name`]
+    /// reference entries by name. This means multiple objects can share the same
+    /// source while each running instance gets its own Rhai scope at runtime.
+    pub scripts: HashMap<String, String>,
+    /// Name of the board-level script in [`Board::scripts`], if any.
+    ///
+    /// A board script runs on the board as a whole (e.g. `on_enter`, `on_tick`)
+    /// rather than being tied to a specific object cell.
+    pub board_script_name: Option<String>,
 }
 
 impl Board {