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bryanthaboi
88 lines
3.8 KiB
Lua
88 lines
3.8 KiB
Lua
-- `variablesprite` mid-script must repaint an object, not replace it.
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--
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-- POKEPORT_GAME=gold POKEPORT_DRIVER=tests/drivers/gold_variablesprite_identity.lua love .
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--
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-- Two of the four map scripts that run `variablesprite` do it with the object
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-- standing right there, mid-conversation, and with the VM holding a reference
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-- to it as LAST_TALKED:
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--
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-- LassAliceScript (maps/FuchsiaGym.asm:61-66) is
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-- `applymovement FUCHSIAGYM_FUCHSIA_GYM_1, Movement_NinjaSpin / faceplayer /
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-- variablesprite SPRITE_FUCHSIA_GYM_1, SPRITE_LASS / special
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-- LoadUsedSpritesGFX / faceplayer` -- the ninja spins, unmasks, and the very
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-- next command turns the SAME object back to the player;
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-- CopycatsHouse2F.asm:23-48 does the same for the Copycat.
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--
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-- On the cart nothing about the object struct moves: Script_variablesprite
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-- writes ONE byte of wVariableSprites (scripting.asm:869) and LoadUsedSpritesGFX
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-- reloads the tiles behind it. The object keeps its coordinates, its facing,
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-- its FROZEN_F and its place as wLastTalked.
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--
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-- So the port must keep the same NPC table. Building a new one strands
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-- World.talkNpc, .trainerNpc, .followState and any live moveState on an object
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-- that is no longer on the map, and drops the object back to its map-def home
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-- cell and default facing in the middle of the scene.
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local U = require("tests.drivers.util")
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return function(game)
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U.wait(45)
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local world = game.world
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assert(world and world.map, "gold world did not boot")
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-- Route 36's Sudowoodo is the port's one live object on a SPRITE_VARS byte
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-- outside Kanto (maps/Route36.asm:486, SPRITE_WEIRD_TREE = slot 4).
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world:setMap("ROUTE_36", 34, 9, "right")
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U.wait(20)
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local tree, treeId
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for _, npc in ipairs(world.npcs) do
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if npc.def and npc.def.sprite == 0xf0 + 4 then
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tree, treeId = npc, (npc.def.index or 0) + 1
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break
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end
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end
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assert(tree, "no SPRITE_WEIRD_TREE object on ROUTE_36")
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-- The state a mid-script `variablesprite` has to survive: the object is the
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-- one being talked to, it has been turned, and it has been frozen.
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world.talkNpc = tree
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world.trainerNpc = tree
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tree.facing = "left"
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tree.frozen = true
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local beforeX, beforeY = tree.cellX, tree.cellY
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-- `variablesprite SPRITE_WEIRD_TREE, SPRITE_TWIN`, the same slot write
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-- WateredWeirdTreeScript makes (maps/Route36.asm:58).
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world:setVariableSprite(4, 38)
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U.wait(2)
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local after = world:objectEntity(treeId)
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print(("[driver] object identity kept: %s"):format(tostring(after == tree)))
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print(("[driver] talkNpc still on the map: %s")
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:format(tostring(after == world.talkNpc)))
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print(("[driver] facing %s -> %s, frozen %s -> %s, cell (%s,%s) -> (%s,%s)")
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:format(tostring(tree.facing), tostring(after and after.facing),
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tostring(tree.frozen), tostring(after and after.frozen),
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tostring(beforeX), tostring(beforeY),
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tostring(after and after.cellX), tostring(after and after.cellY)))
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print(("[driver] sheet now %s (SPRITE_TWIN wanted)")
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:format(tostring(after and after.spriteDef and after.spriteDef.id)))
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assert(after, "the object vanished from the map entirely")
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assert(after.spriteDef and after.spriteDef.id == "SPRITE_TWIN",
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"the slot write did not repaint the object: it is "
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.. tostring(after.spriteDef and after.spriteDef.id))
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assert(after == tree,
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"variablesprite REPLACED the object -- World.talkNpc / .trainerNpc and any "
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.. "live movement now point at an NPC that is no longer on the map")
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assert(after.facing == "left",
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"the object lost the facing a `faceplayer` had just given it: "
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.. tostring(after.facing))
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assert(after.frozen == true, "the object came back unfrozen mid-script")
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assert(after.cellX == beforeX and after.cellY == beforeY,
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"the object moved on a slot write")
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print("[driver] PASS gold variablesprite keeps the object")
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love.event.quit()
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end
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