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Bubberstation/code/modules/unit_tests/changeling.dm
Waterpig b01756b97c Datumizes DNA blocks, makes DNA cleaner in general (#92061)
## About The Pull Request

Moves all the dna block handling onto singleton datums initialized
inside global lists, to make the handling dna less of a copy-paste mess
and make adding new blocks significantly easier. There is still some
work to be done in the copypaste department but ultimately that falls
under its own PR scope after the core refactor goes through. (Ill
probably do those but it will also be easier for everyone else as the
code is now significantly less of an eyesore)

Both features and identities have been tested through and through, and
seem to be working fine.

Also removed the reliance on weird hardcoded lookup tables for length,
and other similar things that just didn't make sense when I was passing
through DNA code. There's a lot more that fall out of scope for this
exact PR's goal however

## Why It's Good For The Game

I've been told the maintainers will love me for doing this

## Changelog

🆑
code: feature keys are no longer magical strings floating around the
codebase and use proper defines
refactor: DNA blocks are now handled with singleton datums.
/🆑
2025-07-14 16:51:45 -06:00

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/// Tests transformation sting goes back and forth correctly
/datum/unit_test/transformation_sting
var/ling_name = "Is-A-Changeling"
var/base_victim_name
var/last_frame = 1
var/icon/final_icon
/datum/unit_test/transformation_sting/Run()
var/mob/living/carbon/human/ling = setup_ling()
var/mob/living/carbon/human/victim = setup_victim()
var/datum/antagonist/changeling/ling_datum = IS_CHANGELING(ling)
// Get the ability we're testing
ling_datum.purchase_power(/datum/action/changeling/sting/transformation)
var/datum/action/changeling/sting/transformation/sting_action = locate() in ling.actions
sting_action.selected_dna = ling_datum.current_profile
sting_action.sting_duration = 0.5 SECONDS // just makes sure everything settles.
// Check that they look different before stinging
add_to_screenshot(ling, victim, both_species = TRUE)
// Do the sting, make the transformation
sting_action.sting_action(ling, victim)
// Check their name and species align
TEST_ASSERT(victim.has_status_effect(/datum/status_effect/temporary_transformation), "Victim did not get temporary transformation status effect on being transformation stung.")
TEST_ASSERT_EQUAL(victim.real_name, ling_name, "Victim real name did not change on being transformation stung.")
TEST_ASSERT_EQUAL(victim.name, ling_name, "Victim name did not change on being transformation stung.")
TEST_ASSERT_EQUAL(victim.dna.species.type, ling.dna.species.type, "Victim species did not change on being transformation stung.")
TEST_ASSERT_EQUAL(victim.dna.features[FEATURE_MUTANT_COLOR], ling.dna.features[FEATURE_MUTANT_COLOR], "Victim mcolor did not change on being transformation stung.")
// Check they actually look the same
add_to_screenshot(ling, victim)
// Make sure we give it enough time such that the status effect process ticks over and finishes
sleep(sting_action.sting_duration + 0.5 SECONDS)
// Check their name and species reset correctly
TEST_ASSERT_EQUAL(victim.name, base_victim_name, "Victim name did not change back after transformation sting expired.")
TEST_ASSERT_EQUAL(victim.real_name, base_victim_name, "Victim real name did not change back after transformation sting expired.")
TEST_ASSERT_NOTEQUAL(victim.dna.species.type, ling.dna.species.type, "Victim species did not change back after transformation sting expired.")
TEST_ASSERT_NOTEQUAL(victim.dna.features[FEATURE_MUTANT_COLOR], ling.dna.features[FEATURE_MUTANT_COLOR], "Victim mcolor did not reset after transformation sting expired.")
// Check they actually look different again
add_to_screenshot(ling, victim, both_species = TRUE)
test_screenshot("appearances", final_icon)
/// Adds both mobs to the screenshot test, if both_species is TRUE, it also adds the victim in lizard form
/datum/unit_test/transformation_sting/proc/add_to_screenshot(mob/living/carbon/human/ling, mob/living/carbon/human/victim, both_species = FALSE)
if(isnull(final_icon))
final_icon = icon('icons/effects/effects.dmi', "nothing")
// If we have a lot of dna features with a lot of parts (icons)
// This'll eventually runtime into a bad icon operation
// So we're recaching the icons here to prevent it from failing
final_icon = icon(final_icon)
final_icon.Insert(getFlatIcon(ling, no_anim = TRUE), dir = SOUTH, frame = last_frame)
final_icon.Insert(getFlatIcon(victim, no_anim = TRUE), dir = NORTH, frame = last_frame)
if(both_species)
var/prior_species = victim.dna.species.type
victim.set_species(/datum/species/lizard)
final_icon.Insert(getFlatIcon(victim, no_anim = TRUE), dir = EAST, frame = last_frame)
victim.set_species(prior_species)
last_frame += 1
/datum/unit_test/transformation_sting/proc/setup_victim()
var/mob/living/carbon/human/victim = allocate(/mob/living/carbon/human/consistent)
base_victim_name = victim.real_name
victim.mind_initialize()
return victim
/datum/unit_test/transformation_sting/proc/setup_ling()
var/mob/living/carbon/human/ling = allocate(/mob/living/carbon/human/consistent)
// Because we use two consistent humans, we need to change some of the features to know they're actually updating to new values.
// The more DNA features and random things we change, the more likely we are to catch something not updating correctly.
// Yeah guess who/what this is, I dare you.
ling.dna.features[FEATURE_MUTANT_COLOR] = "#886600"
ling.dna.features[FEATURE_TAIL_LIZARD] = "Smooth"
ling.dna.features[FEATURE_SNOUT] = "Sharp + Light"
ling.dna.features[FEATURE_HORNS] = "Curled"
ling.dna.features[FEATURE_FRILLS] = "Short"
ling.dna.features[FEATURE_SPINES] = "Long + Membrane"
ling.dna.features[FEATURE_LIZARD_MARKINGS] = "Light Belly"
ling.dna.features[FEATURE_LEGS] = DIGITIGRADE_LEGS
ling.set_eye_color(COLOR_WHITE)
ling.dna.update_ui_block(/datum/dna_block/identity/eye_colors)
ling.set_species(/datum/species/lizard)
ling.real_name = ling_name
ling.dna.real_name = ling_name
ling.name = ling_name
ling.dna.initialize_dna(create_mutation_blocks = FALSE, randomize_features = FALSE)
ling.mind_initialize()
ling.mind.add_antag_datum(/datum/antagonist/changeling)
return ling