Let shopkeepers roam safely around their shops

tests/generated_world_runtime_validation.gd

@@ -12,6 +12,9 @@ const GeneratedLakePool: FishPool = preload(
 const GeneratedRiverPool: FishPool = preload(
 	"res://fish/pools/generated_river_pool.tres"
 )
+const FishingSurfaceResolverType = preload(
+	"res://fishing/fishing_surface_resolver.gd"
+)
 const Gatherables: GatherableCatalog = preload(
 	"res://gathering/catalog/gatherable_catalog.tres"
 )
@@ -415,13 +418,51 @@ func _validate_generated_region(
 
 	var shop := region.get_node("Interactables/FishingShopWorld") as Node3D
 	var storage := region.get_node("Interactables/PlayerStorageBox") as Node3D
+	var decor_shop := region.get_node(
+		"Interactables/DecorShopWorld"
+	) as Node3D
+	var rv_upgrade_shop := region.get_node(
+		"Interactables/RVUpgradeShopWorld"
+	) as Node3D
 	assert(shop != null and shop.has_node("Shopkeeper"))
 	assert(storage != null and storage.has_node("InteractionArea"))
+	assert(decor_shop != null and decor_shop.has_node("Shopkeeper"))
+	assert(rv_upgrade_shop != null and rv_upgrade_shop.has_node("Shopkeeper"))
+	for shop_root: Node3D in [shop, decor_shop, rv_upgrade_shop]:
+		var interaction := shop_root.get_node(
+			"InteractionArea"
+		) as FishingShopInteraction
+		var interaction_shape := shop_root.get_node(
+			"InteractionArea/InteractionShape"
+		) as CollisionShape3D
+		var sphere := interaction_shape.shape as SphereShape3D
+		assert(sphere != null and is_equal_approx(sphere.radius, 1.5))
+		assert(interaction != null)
+		assert(interaction.roaming_radius >= 2.75)
+		assert(interaction.minimum_route_distance >= 1.25)
+		assert(is_equal_approx(interaction.local_interaction_reach, 1.5))
+		assert(
+			is_equal_approx(
+				interaction.get_authority_interaction_radius(),
+				interaction.roaming_radius + interaction.local_interaction_reach,
+			)
+		)
 	var spawn_chunk_center := generator.chunk_position(center)
 	var shop_offset := shop.position - spawn_chunk_center
 	var storage_offset := storage.position - spawn_chunk_center
 	assert(absf(shop_offset.x) < 5.0 and absf(shop_offset.z) < 5.0)
 	assert(absf(storage_offset.x) < 5.0 and absf(storage_offset.z) < 5.0)
+	for pair: Array in [
+		[shop, decor_shop],
+		[shop, rv_upgrade_shop],
+		[decor_shop, rv_upgrade_shop],
+	]:
+		var first_shop := pair[0] as Node3D
+		var second_shop := pair[1] as Node3D
+		assert(
+			first_shop.position.distance_to(second_shop.position)
+			>= GeneratedWorldRegion.SHOPKEEPER_MINIMUM_SEPARATION - 0.001
+		)
 	assert(region.get_fishing_shop() != null)
 	assert(region.get_player_storage() != null)
 	assert(region.get_player_spawn_transform().origin.y > 0.0)
@@ -468,6 +509,8 @@ func _validate_generated_region(
 		== 20 + river_placement_count
 	)
 	var river_body_count := 0
+	var surface_resolver := FishingSurfaceResolverType.new()
+	var space_state := region.get_world_3d().direct_space_state
 	for child: Node in fresh_root.get_children():
 		var fresh := child as WaterBodyAuthoring
 		assert(fresh != null)
@@ -527,7 +570,44 @@ func _validate_generated_region(
 		else:
 			assert(&"pond" in fresh.location_tags)
 			assert(fresh.fish_pool == GeneratedPondPool)
+		# Generated fresh water shares the ocean's visible plane. Confirm that
+		# every habitat collider wins at runtime rather than merely checking the
+		# resource assigned to an otherwise-unused body.
+		var probe_position := fresh.global_position
+		if fresh.surface_polygon.size() >= 3:
+			var probe_indices := Geometry2D.triangulate_polygon(
+				fresh.surface_polygon,
+			)
+			assert(probe_indices.size() >= 3)
+			var probe_local := Vector2.ZERO
+			for probe_offset: int in 3:
+				probe_local += fresh.surface_polygon[
+					probe_indices[probe_offset]
+				]
+			probe_local /= 3.0
+			probe_position = fresh.to_global(Vector3(
+				probe_local.x,
+				0.0,
+				probe_local.y,
+			))
+		var selected_region: FishableWaterRegion = surface_resolver.call(
+			"_find_highest_water_region",
+			space_state,
+			probe_position,
+			probe_position.y + 100.0,
+			probe_position.y - 100.0,
+		)
+		assert(selected_region == fresh.get_node("FishingRegion"))
+		assert(selected_region.fish_pool == fresh.fish_pool)
 	assert(river_body_count == river_placement_count)
+	var resolved_ocean := surface_resolver.resolve_surface(
+		space_state,
+		Vector3(1000.0, GeneratedWorldRegion.WATER_HEIGHT, 1000.0),
+		GeneratedWorldRegion.WATER_HEIGHT + 2.0,
+	)
+	assert(resolved_ocean.is_fishable())
+	assert(resolved_ocean.water_region == ocean.get_node("FishingRegion"))
+	assert(resolved_ocean.water_region.water_type == WaterType.Type.SALT_WATER)
 
 	_validate_authored_chunk_surfaces(region, generator)
 	_validate_projected_terrain_materials(