Merge pull request #123 from AresSC2/fix/overproduce-low-tech

fix: overproduce on low tech behaves as expected

src/ares/behaviors/macro/spawn_controller.py

@@ -89,6 +89,8 @@ def execute(self, ai: "AresBot", config: dict, mediator: ManagerMediator) -> boo
         proportion_sum: float = 0.0
         # remember units that meet tech requirement
         units_ready_to_build: list[UnitID] = []
+        # keep track of what units we have tech for
+        tech_ready_for: list[UnitID] = []
         # iterate through desired army comp starting with the highest priority unit
         for unit_type_id, army_comp_info in sorted(
             army_comp_dict.items(), key=lambda x: x[1].get("priority", int(0))
@@ -111,6 +113,8 @@ def execute(self, ai: "AresBot", config: dict, mediator: ManagerMediator) -> boo
             if not ai.tech_ready_for_unit(unit_type_id):
                 continue
 
+            tech_ready_for.append(unit_type_id)
+
             # get all idle build structures/units we can create this unit from
             build_structures: list[Unit] = ai.get_build_structures(
                 UNIT_TRAINED_FROM[unit_type_id],
@@ -157,7 +161,11 @@ def execute(self, ai: "AresBot", config: dict, mediator: ManagerMediator) -> boo
                 ai, unit_type_id, build_structures, amount, supply, cost
             )
         # if we can only build one type of unit, keep adding them
-        if len(units_ready_to_build) == 1 and self.over_produce_on_low_tech:
+        if (
+            len(tech_ready_for) == 1
+            and self.over_produce_on_low_tech
+            and len(units_ready_to_build) > 0
+        ):
             build_structures = ai.get_build_structures(
                 UNIT_TRAINED_FROM[units_ready_to_build[0]],
                 units_ready_to_build[0],