Checkpoint initial implementation

tungston/core/ecology/biomecatalog.py

@@ -0,0 +1,25 @@
+from tungston.core.ecology.biome import Biome
+from tungston.core.ecology.biomefilter import BiomeFilter
+
+
+# Classes ##########################################################################################
+
+class BiomeCatalog:
+    """
+    A comprehensive list of all available biomes in the modpack.
+    """
+
+    def __init__(self, biomes):
+        self.biomes = sorted(biomes, key=lambda b: b.city)
+
+    def all(self) -> list[Biome]:
+        return list(self.biomes)
+
+    def matching(self, biomeFilter:BiomeFilter) -> list[Biome]:
+        result = []
+
+        for biome in self.biomes:
+            if biomeFilter.accepts(biome):
+                result.append(biome)
+
+        return result