From 0d2ab1789f35f18d6a93208b4f734424a164ebf5 Mon Sep 17 00:00:00 2001
From: Theos <theubernyan@gmail.com>
Date: Sun, 1 Nov 2020 13:28:33 -0500
Subject: [PATCH] stitches together some tg code to make swarmers able to eat
 stuff I think (#10287)

* Update atoms.dm

* add return composition bit

* yeah this'll probably work

* ok

* Update swarmer_act.dm
---
 code/datums/materials/_material.dm   | 13 ++++++++++++-
 code/game/atoms.dm                   | 21 ++++++++++++++++++++-
 code/modules/swarmers/swarmer_act.dm |  5 +++--
 3 files changed, 35 insertions(+), 4 deletions(-)

diff --git a/code/datums/materials/_material.dm b/code/datums/materials/_material.dm
index 7ef566dadb28..9dde16b137a8 100644
--- a/code/datums/materials/_material.dm
+++ b/code/datums/materials/_material.dm
@@ -64,4 +64,15 @@ Simple datum which is instanced once per type and is used for every object of sa
 
 	o.max_integrity = new_max_integrity
 	o.force = initial(o.force)
-	o.throwforce = initial(o.throwforce)
\ No newline at end of file
+	o.throwforce = initial(o.throwforce)
+
+/** Returns the composition of this material.
+  *
+  * Mostly used for alloys when breaking down materials.
+  *
+  * Arguments:
+  * - amount: The amount of the material to break down.
+  * - breakdown_flags: Some flags dictating how exactly this material is being broken down.
+  */
+/datum/material/proc/return_composition(amount=1, breakdown_flags=NONE)
+	return list((src) = amount) // Yes we need the parenthesis, without them BYOND stringifies src into "src" and things break.
diff --git a/code/game/atoms.dm b/code/game/atoms.dm
index 0fbad190ea0d..bae3c8665c40 100644
--- a/code/game/atoms.dm
+++ b/code/game/atoms.dm
@@ -1116,6 +1116,25 @@
 /atom/proc/intercept_zImpact(atom/movable/AM, levels = 1)
 	return FALSE
 
+/**Returns the material composition of the atom.
+  *
+  * Used when recycling items, specifically to turn alloys back into their component mats.
+  *
+  * Exists because I'd need to add a way to un-alloy alloys or otherwise deal
+  * with people converting the entire stations material supply into alloys.
+  *
+  * Arguments:
+  * - flags: A set of flags determining how exactly the materials are broken down.
+  */
+/atom/proc/get_material_composition(breakdown_flags=NONE)
+	. = list()
+	var/list/cached_materials = custom_materials
+	for(var/mat in cached_materials)
+		var/datum/material/material = getmaterialref(mat)
+		var/list/material_comp = material.return_composition(cached_materials[material], breakdown_flags)
+		for(var/comp_mat in material_comp)
+			.[comp_mat] += material_comp[comp_mat]
+
 /**
   * Causes effects when the atom gets hit by a rust effect from heretics
   *
@@ -1156,4 +1175,4 @@
 		var/datum/material/custom_material = x
 
 		custom_material.on_applied(src, materials[custom_material] * multiplier, material_flags)
-		custom_materials[custom_material] += materials[x] * multiplier
\ No newline at end of file
+		custom_materials[custom_material] += materials[x] * multiplier
diff --git a/code/modules/swarmers/swarmer_act.dm b/code/modules/swarmers/swarmer_act.dm
index 3631ef84a062..7a6c8d65b351 100644
--- a/code/modules/swarmers/swarmer_act.dm
+++ b/code/modules/swarmers/swarmer_act.dm
@@ -28,7 +28,8 @@
 	return 0
 
 /obj/item/integrate_amount() //returns the amount of resources gained when eating this item
-	if(materials[/datum/material/iron] || materials[/datum/material/glass])
+	var/list/mats = get_material_composition(ALL) // Ensures that items made from plasteel, and plas/titanium/plastitaniumglass get integrated correctly.
+	if(length(mats) && (mats[getmaterialref(/datum/material/iron)] || mats[getmaterialref(/datum/material/glass)]))
 		return 1
 	return ..()
 
@@ -227,4 +228,4 @@
 
 /obj/machinery/shieldwall/swarmer_act(mob/living/simple_animal/hostile/swarmer/actor)
 	to_chat(actor, "<span class='warning'>This object does not contain solid matter. Aborting.</span>")
-	return FALSE
\ No newline at end of file
+	return FALSE