Merge pull request #311 from Sandstorm-Station/duct-piping

Several duct pipe fixes/qol

code/game/objects/items/stacks/stack_recipe.dm

@@ -0,0 +1,69 @@
+
+/*
+ * Recipe datum
+ */
+/datum/stack_recipe
+	/// The title of the recipe
+	var/title = "ERROR"
+	/// What atom the recipe makes, typepath
+	var/atom/result_type
+	/// Amount of stack required to make
+	var/req_amount = 1
+	/// Amount of resulting atoms made
+	var/res_amount = 1
+	/// Max amount of resulting atoms made
+	var/max_res_amount = 1
+	/// How long it takes to make
+	var/time = 0
+	/// If only one of the resulting atom is allowed per turf
+	var/one_per_turf = FALSE
+	/// If the atom requires a floor below
+	var/on_floor = FALSE
+	/// Bitflag of additional placement checks required to place. (STACK_CHECK_CARDINALS|STACK_CHECK_ADJACENT)
+	var/placement_checks = NONE
+	/// If TRUE, the created atom will gain custom mat datums
+	var/applies_mats = FALSE
+	/// What trait, if any, boosts the construction speed of this item
+	var/trait_booster
+	/// How much the trait above, if supplied, boosts the construct speed of this item
+	var/trait_modifier = 1
+
+/datum/stack_recipe/New(
+	title,
+	result_type,
+	req_amount = 1,
+	res_amount = 1,
+	max_res_amount = 1,
+	time = 0,
+	one_per_turf = FALSE,
+	on_floor = FALSE,
+	window_checks = FALSE,
+	placement_checks = NONE,
+	applies_mats = FALSE,
+	trait_booster,
+	trait_modifier = 1,
+)
+
+	src.title = title
+	src.result_type = result_type
+	src.req_amount = req_amount
+	src.res_amount = res_amount
+	src.max_res_amount = max_res_amount
+	src.time = time
+	src.one_per_turf = one_per_turf
+	src.on_floor = on_floor
+	src.placement_checks = placement_checks
+	src.applies_mats = applies_mats
+	src.trait_booster = trait_booster
+	src.trait_modifier = trait_modifier
+
+/*
+ * Recipe list datum
+ */
+/datum/stack_recipe_list
+	var/title = "ERROR"
+	var/list/recipes
+
+/datum/stack_recipe_list/New(title, recipes)
+	src.title = title
+	src.recipes = recipes