Checkpoint initial implementation

tungston/core/geology/replacement.py

@@ -0,0 +1,40 @@
+from tungston.core.resourceid import ResourceId
+
+
+# Constants ########################################################################################
+
+STONE_REPLACEABLES = "#minecraft:stone_ore_replaceables"
+DEEPSLATE_REPLACEABLES = "#minecraft:deepslate_ore_replaceables"
+
+
+# Class ############################################################################################
+
+class Replacement:
+
+    @staticmethod
+    def inStone(target:str, weight:int=100):
+        return Replacement(STONE_REPLACEABLES, target, weight)
+
+    @staticmethod
+    def inDeepslate(target:str, weight:int=100):
+        return Replacement(DEEPSLATE_REPLACEABLES, target, weight)
+
+    def __init__(self, source:str, target:str, weight:int=100):
+        self.source = ResourceId.canonical(source)
+        self.target = ResourceId.canonical(target)
+        self.weight = weight
+
+    def __str__(self) -> str:
+        if self.weight == 100:
+            return f"{self.source} => {self.target}"
+
+        return f"{self.source} => {self.target} ({self.weight}%)"
+
+    def __repr__(self) -> str:
+        return "".join([str(p) for p in [
+            "Replacement{" +
+                "source: ", self.source, ", ",
+                "target: ", self.target, ", ",
+                "weight: ", self.weight,
+            "}"
+        ]])