Add Ground Zero water source

Scripts/verify_ground_zero_water_source.py

@@ -0,0 +1,43 @@
+import unreal
+
+
+MAP_PATH = "/Game/Agrarian/Maps/L_GroundZeroTerrain_Test"
+WATER_SOURCE_LABEL = "AGR_GZ_FreshWaterSource_01"
+EXPECTED_WATER_RESTORE = 45.0
+
+
+def nearly_equal(left, right, tolerance=0.001):
+    return abs(float(left) - float(right)) <= tolerance
+
+
+def get_actor_label(actor):
+    try:
+        return actor.get_actor_label()
+    except Exception:
+        return actor.get_name()
+
+
+def main():
+    if not unreal.EditorLevelLibrary.load_level(MAP_PATH):
+        raise RuntimeError(f"Could not load map: {MAP_PATH}")
+
+    actors = unreal.EditorLevelLibrary.get_all_level_actors()
+    water_sources = [actor for actor in actors if get_actor_label(actor) == WATER_SOURCE_LABEL]
+    if len(water_sources) != 1:
+        raise RuntimeError(f"Expected exactly one {WATER_SOURCE_LABEL}, found {len(water_sources)}")
+
+    water_source = water_sources[0]
+    actual_restore = water_source.get_editor_property("water_restore_amount")
+    if not nearly_equal(actual_restore, EXPECTED_WATER_RESTORE):
+        raise RuntimeError(f"Water restore expected {EXPECTED_WATER_RESTORE}, got {actual_restore}")
+
+    if not isinstance(water_source, unreal.AgrarianWaterSource):
+        raise RuntimeError(f"{WATER_SOURCE_LABEL} is not an AgrarianWaterSource")
+
+    unreal.log(
+        "Ground Zero water source verification complete: "
+        f"{WATER_SOURCE_LABEL}, restore={actual_restore}."
+    )
+
+
+main()