Update source files

crates/borders-core/tests/terrain.rs

@@ -0,0 +1,50 @@
+use borders_core::game::terrain::{MapManifest, MapMetadata, TerrainData, TileType};
+use borders_core::game::tilemap::TileMap;
+
+fn create_test_terrain(width: usize, height: usize) -> TerrainData {
+    let tile_types = vec![TileType { name: "water".to_string(), color_base: "blue".to_string(), color_variant: 0, conquerable: false, navigable: true, expansion_time: 255, expansion_cost: 255 }, TileType { name: "land".to_string(), color_base: "green".to_string(), color_variant: 0, conquerable: true, navigable: false, expansion_time: 50, expansion_cost: 50 }];
+
+    let mut terrain_data_raw = vec![0; width * height];
+    terrain_data_raw[5] = 0x80; // Make position 5 land
+    terrain_data_raw[10] = 0x85; // Make position 10 land with magnitude 5
+
+    let tiles: Vec<u8> = terrain_data_raw.iter().map(|&byte| if byte & 0x80 != 0 { 1 } else { 0 }).collect();
+
+    let terrain_data = TileMap::from_vec(width as u16, height as u16, terrain_data_raw);
+
+    TerrainData { _manifest: MapManifest { map: MapMetadata { size: glam::U16Vec2::new(width as u16, height as u16), num_land_tiles: 2 }, name: "Test".to_string(), nations: Vec::new() }, terrain_data, tiles, tile_types }
+}
+
+#[test]
+fn test_is_land() {
+    let terrain = create_test_terrain(10, 10);
+    assert!(!terrain.is_land(glam::U16Vec2::new(0, 0)));
+    assert!(terrain.is_land(glam::U16Vec2::new(5, 0)));
+}
+
+#[test]
+fn test_is_conquerable() {
+    let terrain = create_test_terrain(10, 10);
+    assert!(!terrain.is_conquerable(glam::U16Vec2::new(0, 0)));
+    assert!(terrain.is_conquerable(glam::U16Vec2::new(5, 0)));
+}
+
+#[test]
+fn test_is_navigable() {
+    let terrain = create_test_terrain(10, 10);
+    assert!(terrain.is_navigable(glam::U16Vec2::new(0, 0)));
+    assert!(!terrain.is_navigable(glam::U16Vec2::new(5, 0)));
+}
+
+#[test]
+fn test_terrain_magnitude() {
+    let terrain = create_test_terrain(10, 10);
+    assert_eq!(terrain.terrain_magnitude(glam::U16Vec2::new(0, 1)), 5);
+}
+
+#[test]
+fn test_expansion_properties() {
+    let terrain = create_test_terrain(10, 10);
+    assert_eq!(terrain.get_expansion_time(glam::U16Vec2::new(5, 0)), 50);
+    assert_eq!(terrain.get_expansion_cost(glam::U16Vec2::new(5, 0)), 50);
+}