Added names to objects

kiln-core/src/tests/map_file/object_placement.rs

@@ -1,6 +1,23 @@
 use crate::archetype::Archetype;
 use super::{load_board, map_3x1, obj_palette};
 
+#[test]
+fn duplicate_name_clears_second_but_keeps_both_objects() {
+    // Two objects share the name "gate": first keeps it, second is cleared.
+    // Both objects still appear on the board; the map is flagged invalid.
+    let objs = format!(
+        "{}\n{}",
+        "[[objects]]\nx = 0\ny = 0\ntile = 64\nfg = \"#ffffff\"\nbg = \"#000000\"\nname = \"gate\"\n",
+        "[[objects]]\nx = 1\ny = 0\ntile = 64\nfg = \"#ffffff\"\nbg = \"#000000\"\nname = \"gate\"\nsolid = false\n",
+    );
+    let board = load_board(&map_3x1("...", &objs));
+    assert_eq!(board.objects.len(), 2, "both objects survive");
+    // First object (id 1) keeps the name; second (id 2) is cleared.
+    assert_eq!(board.objects[&1].name.as_deref(), Some("gate"));
+    assert_eq!(board.objects[&2].name, None);
+    assert!(!board.is_valid(), "duplicate name is a nonfatal load error");
+}
+
 #[test]
 fn palette_placement_puts_object_on_empty_floor() {
     // `G` appears once, isn't a palette key → object lands there, cell is Empty.

kiln-core/src/tests/map_file/round_trip.rs

@@ -2,7 +2,7 @@ use color::Rgba8;
 use crate::board::Board;
 use crate::glyph::Glyph;
 use crate::map_file::{MapFile, parse_color};
-use super::load_board;
+use super::{load_board, map_3x1, obj_palette};
 
 #[test]
 fn object_glyph_round_trips_through_toml() {
@@ -128,6 +128,32 @@ bg = "#000000"
     assert!(!toml_out.contains("tags"), "empty tags must not appear in TOML output");
 }
 
+#[test]
+fn object_name_round_trips_through_toml() {
+    // A named object must survive a save→load cycle with its name intact.
+    let board = load_board(&map_3x1("G..", &obj_palette("G", "name = \"beacon\"\n")));
+    assert_eq!(board.objects[&1].name.as_deref(), Some("beacon"));
+
+    let toml_out = toml::to_string_pretty(&MapFile::from(&board)).unwrap();
+    assert!(toml_out.contains("\"beacon\""), "name must appear in saved TOML");
+    let board2 = load_board(&toml_out);
+    assert_eq!(board2.objects[&1].name.as_deref(), Some("beacon"));
+}
+
+#[test]
+fn unnamed_object_omits_name_from_toml() {
+    // An unnamed object must not emit a `name` key in TOML; check via the parsed
+    // value so the map header's `name = "Test"` doesn't produce a false positive.
+    let board = load_board(&map_3x1("G..", &obj_palette("G", "")));
+    let toml_out = toml::to_string_pretty(&MapFile::from(&board)).unwrap();
+    let val: toml::Value = toml_out.parse().unwrap();
+    let objects = val["objects"].as_array().unwrap();
+    assert!(
+        !objects[0].as_table().unwrap().contains_key("name"),
+        "unnamed object must not emit name key"
+    );
+}
+
 #[test]
 fn floor_spec_round_trips_through_toml() {
     // A 2×2 board with a grid floor (a generator and a fixed glyph) must survive