commit 87f4ac7d299671254fa0d53f30abd0be60741df3
Author: Michael Peters <michael@styx>
Date:   Sun Feb 11 12:52:21 2024 -0800

    initial commit

diff --git a/.gitignore b/.gitignore
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--- /dev/null
+++ b/.gitignore
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+venv
diff --git a/calc.py b/calc.py
new file mode 100644
index 0000000..377acad
--- /dev/null
+++ b/calc.py
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+from dataclasses import dataclass
+
+@dataclass(frozen=True)
+class Resource:
+    name: str
+
+# item definitions
+
+class RS:
+    iron_ore = Resource("Iron Ore")
+    copper_ore = Resource("Copper Ore")
+    uranium_ore = Resource("Uranium Ore")
+    stone = Resource("Stone")
+    coal = Resource("Coal")
+
+    crude_oil = Resource("Crude Oil")
+    water = Resource("Water")
+
+    energy = Resource("Energy (kW)")
+
+    assembler = Resource("Assembler")
+    mining_drill = Resource("Mining Drill")
+    furnace = Resource("Furnace")
+    chemical_plant = Resource("Chemical Plant")
+    oil_refinery = Resource("Oil Refinery")
+
+    iron = Resource("Iron Plate")
+    copper = Resource("Copper Plate")
+    stone_brick = Resource("Stone Brick")
+    steel = Resource("Steel")
+
+    concrete = Resource("Concrete")
+
+    iron_gear = Resource("Iron Gear")
+    iron_stick = Resource("Iron Stick")
+
+    copper_cable = Resource("Copper Cable")
+
+    circuit_a = Resource("Electronic Circuit")
+    circuit_b = Resource("Advanced Circuit")
+    circuit_c = Resource("Processing Unit")
+
+    engine_unit = Resource("Engine Unit")
+    engine_unit_electric = Resource("Electric Engine Unit")
+
+    belt_y = Resource("Transport Belt")
+    belt_r = Resource("Fast Transport Belt")
+    belt_b = Resource("Express Transport Belt")
+
+    inserter_y = Resource("Inserter")
+    inserter_r = Resource("Long-Handed Inserter")
+    inserter_b = Resource("Fast Inserter")
+
+    magazine_y = Resource("Firearm Magazine")
+    magazine_r = Resource("Piercing Magazine")
+    grenade = Resource("Grenade")
+
+    rocket_y = Resource("Rocket")
+    rocket_r = Resource("Explosive Rocket")
+
+    petrolium_gas = Resource("Petrolium Gas")
+    light_oil = Resource("Light Oil")
+    heavy_oil = Resource("Heavy Oil")
+
+    steam = Resource("Steam")
+    lubricant = Resource("Lubricant")
+
+    sulfur = Resource("Sulfur")
+    sulfuric_acid = Resource("Sulfuric Acid")
+    battery = Resource("Battery")
+    explosives = Resource("Explosives")
+
+    flying_robot_frame = Resource("Flying Robot Frame")
+    low_density_structure = Resource("Low Density Structure")
+
+    rocket_part = Resource("Rocket Part")
+    rocket = Resource("Rocket")
+
+    science_red    = Resource("Automation Science Pack")
+    science_green  = Resource("Logistic Science Pack")
+    science_gray   = Resource("Military Science Pack")
+    science_blue   = Resource("Chemical Science Pack")
+    science_purple = Resource("Production Science Pack")
+    science_yellow = Resource("Utility Science Pack")
+    science_white  = Resource("Space Science Pack")
+
+@dataclass
+class Recipe:
+    name: str
+    resources: dict[Resource, float]
+
+class Recipies:
+    # mining
+    iron_ore    = Recipe("Iron Ore",    {RS.mining_drill: -1, RS.iron_ore:    0.5})
+    copper_ore  = Recipe("Copper Ore",  {RS.mining_drill: -1, RS.copper_ore:  0.5})
+    coal        = Recipe("Coal",        {RS.mining_drill: -1, RS.coal:        0.5})
+    uranium_ore = Recipe("Uranium Ore", {RS.mining_drill: -1, RS.sulfuric_acid: -0.25, RS.uranium_ore: 0.25})
+
+    # smelting
+    iron_plate   = Recipe("Iron Plate",   {RS.furnace: -3.2, RS.iron_ore:   -1, RS.iron:        1})
+    copper_plate = Recipe("Copper Plate", {RS.furnace: -3.2, RS.copper_ore: -1, RS.copper:      1})
+    stone_brick  = Recipe("Stone Brick",  {RS.furnace: -3.2, RS.stone:      -2, RS.stone_brick: 1})
+
+    # crafting
+    concrete = Recipe("Concrete", {RS.assembler: -10, RS.iron_ore: -1, RS.stone_brick: -5, RS.water: -100, RS.concrete: 10})
+
+RECIPIES = {}