Add ventcrawl unit-test (#24830)

* Add ventcrawl unit-test

* Fix linting

* Solve chair-flipping without HANDS_BLOCKED

* Remove unit_test_dummy variable

* Use `isturf` helper in ventcrawl unit-test

Co-authored-by: Ryan <80364400+Sirryan2002@users.noreply.github.com>

* Update code/modules/unit_tests/atmos/test_ventcrawl.dm

---------

Signed-off-by: DGamerL <108773801+DGamerL@users.noreply.github.com>
Co-authored-by: Ryan <80364400+Sirryan2002@users.noreply.github.com>
Co-authored-by: DGamerL <108773801+DGamerL@users.noreply.github.com>

code/controllers/subsystem/non_firing/SSmapping.dm

@@ -49,6 +49,7 @@ SUBSYSTEM_DEF(mapping)
 	log_startup_progress("We feel like [cave_theme] today...")
 	// Load all Z level templates
 	preloadTemplates()
+	preloadTemplates(path = "code/modules/unit_tests/atmos/")
 
 	// Load the station
 	loadStation()

code/game/objects/structures/stool_bed_chair_nest/chairs.dm

@@ -129,7 +129,7 @@
 	handle_rotation(newdir)
 
 /obj/structure/chair/AltClick(mob/user)
-	if(user.stat || HAS_TRAIT(user, TRAIT_HANDS_BLOCKED) || !Adjacent(user))
+	if(user.stat || HAS_TRAIT(user, TRAIT_HANDS_BLOCKED) || !Adjacent(user) || is_ventcrawling(user))
 		return
 
 	rotate()

code/game/objects/structures/tables_racks.dm

@@ -326,7 +326,7 @@
 	return T.straight_table_check(direction)
 
 /obj/structure/table/AltShiftClick(mob/living/carbon/human/user)
-	if(user.stat || HAS_TRAIT(user, TRAIT_HANDS_BLOCKED) || !Adjacent(user) || !can_be_flipped)
+	if(user.stat || HAS_TRAIT(user, TRAIT_HANDS_BLOCKED) || !Adjacent(user) || !can_be_flipped || is_ventcrawling(user))
 		return
 
 	if(!flipped)

code/modules/mob/living/carbon/carbon_procs.dm

@@ -500,11 +500,15 @@ GLOBAL_LIST_INIT(ventcrawl_machinery, list(/obj/machinery/atmospherics/unary/ven
 	visible_message("<span class='notice'>[src] begins climbing into the ventilation system...</span>", \
 					"<span class='notice'>You begin climbing into the ventilation system...</span>")
 
-	if(!do_after(src, 4.5 SECONDS, target = src))
-		return
-
+#ifdef UNIT_TESTS
+	var/ventcrawl_delay = 0 SECONDS
+#else
+	var/ventcrawl_delay = 4.5 SECONDS
 	if(!client)
 		return
+#endif
+	if(!do_after(src, ventcrawl_delay, target = src))
+		return
 
 	if(!vent_found.can_crawl_through())
 		to_chat(src, "<span class='warning'>You can't vent crawl through that!</span>")
@@ -545,7 +549,8 @@ GLOBAL_LIST_INIT(ventcrawl_machinery, list(/obj/machinery/atmospherics/unary/ven
 		if(!A.pipe_image)
 			A.update_pipe_image()
 		pipes_shown += A.pipe_image
-		client.images += A.pipe_image
+		if(client)
+			client.images += A.pipe_image
 
 /mob/living/proc/remove_ventcrawl()
 	if(client)

code/modules/mob/living/simple_animal/slime/slime_life.dm

@@ -209,7 +209,6 @@
 	adjustBruteLoss(-3)
 
 /mob/living/simple_animal/slime/proc/handle_nutrition()
-
 	if(docile) //God as my witness, I will never go hungry again
 		set_nutrition(700) //fuck you for using the base nutrition var
 		return
@@ -244,9 +243,6 @@
 			if(prob(25-powerlevel*5))
 				powerlevel++
 
-
-
-
 /mob/living/simple_animal/slime/proc/handle_targets()
 	if(Tempstun)
 		if(!buckled) // not while they're eating!
@@ -269,7 +265,7 @@
 		if(prob(10))
 			Discipline--
 
-	if(!client)
+	if(!client && !stop_automated_movement)
 		if(!(mobility_flags & MOBILITY_MOVE))
 			return
 

code/modules/mob/living/simple_animal/slime/slime_mob.dm

@@ -467,3 +467,7 @@
 		to_chat(src, "<i>I can't vent crawl while feeding...</i>")
 		return
 	..()
+
+/mob/living/simple_animal/slime/unit_test_dummy
+	wander = FALSE
+	stop_automated_movement = TRUE

code/modules/unit_tests/_unit_tests.dm

@@ -2,6 +2,7 @@
 //Keep this sorted alphabetically
 
 #ifdef UNIT_TESTS
+#include "atmos\test_ventcrawl.dm"
 #include "games\test_cards.dm"
 #include "jobs\test_job_globals.dm"
 #include "aicard_icons.dm"

code/modules/unit_tests/atmos/test_ventcrawl.dm

@@ -0,0 +1,42 @@
+/datum/unit_test/ventcrawl
+	var/mob/living/simple_animal/slime = null
+	var/obj/machinery/vent = null
+	var/obj/structure/table/table = null
+
+/datum/unit_test/ventcrawl/proc/setup_test_area()
+	var/datum/map_template/template = GLOB.map_templates["test_ventcrawl.dmm"]
+	if(!template.load(run_loc_bottom_left))
+		Fail("Failed to load 'test_ventcrawl.dmm'")
+
+	slime = new /mob/living/simple_animal/slime/unit_test_dummy(run_loc_bottom_left)
+	vent = find_spawned_test_object(run_loc_bottom_left, /obj/machinery/atmospherics/unary/vent_pump)
+	table = find_spawned_test_object(get_step(run_loc_bottom_left, EAST), /obj/structure/table)
+
+/datum/unit_test/ventcrawl/proc/find_spawned_test_object(turf/location as turf, test_object_type)
+	for(var/content in location.contents)
+		if(istype(content, test_object_type))
+			return content
+	Fail("Couldn't find spawned test object of type: [test_object_type].")
+
+/datum/unit_test/ventcrawl/Run()
+	setup_test_area()
+
+	// Enter vent
+	vent.AltClick(slime)
+	if(slime.loc != vent)
+		Fail("Failed to crawl into vent.")
+
+	// Movement
+	slime.loc.relaymove(slime, EAST)
+	if(slime.loc == vent)
+		Fail("Failed to step EAST while wentcrawling.")
+
+	// Try to flip table on top of pipe, while inside pipe (shouldn't work)
+	table.AltShiftClick(slime)
+	if(table.flipped)
+		Fail("Shouldn't be possible to flip structures while inside vent.")
+
+	// Exit vent
+	slime.loc.relaymove(slime, EAST)
+	if(!isturf(slime.loc))
+		Fail("Wasn't able to ventcrawl out of vent.")

code/modules/unit_tests/atmos/test_ventcrawl.dmm

@@ -0,0 +1,7 @@
+"a" = (/obj/machinery/atmospherics/unary/vent_pump/on{dir = 4},/turf/simulated/floor,/area/space)
+"d" = (/obj/machinery/atmospherics/unary/vent_pump/on{dir = 8},/turf/simulated/floor,/area/space)
+"X" = (/obj/machinery/atmospherics/pipe/simple/visible{dir = 4},/obj/structure/table,/turf/simulated/floor,/area/space)
+
+(1,1,1) = {"
+aXd
+"}