Checkpoint initial implementation

tungston/core/geology/proportion.py

@@ -0,0 +1,34 @@
+# Class ############################################################################################
+
+class Proportion:
+
+    def __init__(self, name:str, ratio:float):
+        self.name = name
+        self.ratio = ratio
+
+    def __eq__(self, other) -> bool:
+        if type(self) != type(other): return False
+        if self.name != other.name: return False
+        return True
+
+    def __hash__(self) -> int:
+        return hash(self.name)
+
+    def __str__(self) -> str:
+        return self.name
+
+    def __repr__(self) -> str:
+        return f"Proportion<{self.name}>{{ratio: {self.ratio}}}"
+
+
+# Constants ########################################################################################
+
+BED   = Proportion("bed",   0.1) # salt, nitrate, redbed, loam, bif iron, peat coal
+LENS  = Proportion("lens",  0.4) # bit.coal, aluminum, lapis, quartzite
+LODE  = Proportion("lode",  0.7) # au.quartz, mvt lead
+BODY  = Proportion("body",  1.0) # sed.iron
+STOCK = Proportion("stock", 1.3) # tin
+VENT  = Proportion("vent",  1.6) # sulfur
+PIPE  = Proportion("pipe",  1.9) # por.copper
+
+ALL = [BED, LENS, LODE, BODY, STOCK, VENT, PIPE]