diff -r 5f00829c55ec -r da6b67f13c12 rust/mapgen/src/template/wavefront_collapse.rs
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rust/mapgen/src/template/wavefront_collapse.rs	Mon Feb 13 12:31:30 2023 +0100
@@ -0,0 +1,73 @@
+use integral_geometry::{Point, Rect, Size};
+use land2d::Land2D;
+use landgen::{wavefront_collapse::generator::*, LandGenerationParameters};
+use serde_derive::Deserialize;
+use serde_yaml;
+use std::{borrow::Borrow, collections::hash_map::HashMap, mem::replace};
+
+#[derive(Deserialize)]
+#[serde(remote = "EdgeDescription")]
+pub struct EdgeDesc {
+    pub name: String,
+    pub reversed: Option<bool>,
+    pub symmetrical: Option<bool>,
+}
+
+#[derive(Deserialize)]
+#[serde(remote = "EdgesDescription")]
+pub struct EdgesDesc {
+    #[serde(with = "EdgeDesc")]
+    pub top: EdgeDescription,
+    #[serde(with = "EdgeDesc")]
+    pub right: EdgeDescription,
+    #[serde(with = "EdgeDesc")]
+    pub bottom: EdgeDescription,
+    #[serde(with = "EdgeDesc")]
+    pub left: EdgeDescription,
+}
+
+#[derive(Deserialize)]
+#[serde(remote = "TileDescription")]
+pub struct TileDesc {
+    pub name: String,
+    #[serde(with = "EdgesDesc")]
+    pub edges: EdgesDescription,
+    pub can_flip: bool,
+    pub can_mirror: bool,
+    pub can_rotate90: bool,
+    pub can_rotate180: bool,
+    pub can_rotate270: bool,
+}
+
+#[derive(Deserialize)]
+pub struct TileDescriptionHelper(#[serde(with = "TileDesc")] TileDescription);
+
+#[derive(Deserialize)]
+pub struct TemplateDesc {
+    pub width: usize,
+    pub height: usize,
+    pub can_flip: bool,
+    pub is_negative: bool,
+    pub put_girders: bool,
+    pub max_hedgehogs: u8,
+    pub tiles: Vec<TileDescriptionHelper>,
+}
+
+#[derive(Deserialize)]
+pub struct TemplateCollectionDesc {
+    pub templates: Vec<TemplateDesc>,
+    pub template_types: HashMap<String, Vec<usize>>,
+}
+
+impl From<&TemplateDesc> for TemplateDescription {
+    fn from(desc: &TemplateDesc) -> Self {
+        Self {
+            size: Size::new(desc.width, desc.height),
+            tiles: desc
+                .tiles
+                .iter()
+                .map(|TileDescriptionHelper(t)| t.clone())
+                .collect(),
+        }
+    }
+}