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bryanthaboi
97 lines
4.1 KiB
Lua
97 lines
4.1 KiB
Lua
-- Gen 1 fixed-damage moves and Super Fang ignore the type chart (#616).
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-- SPECIAL_DAMAGE_EFFECT and SUPER_FANG_EFFECT are the SetDamageEffects
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-- table (data/battle/set_damage_effects.asm); engine/battle/core.asm:3139
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-- jumps straight to MoveHitTest for them, so CalculateDamage and
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-- AdjustDamageForMoveType never run and ApplyAttackToEnemyPokemon
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-- (core.asm:4612) stores wDamage unscaled. Night Shade therefore hits
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-- Normal-types and Super Fang hits Ghosts. OHKO is the exception: it
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-- returns through AdjustDamageForMoveType (core.asm:4329, 4467) and a 0x
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-- matchup still zeroes its 65535 and sets wMoveMissed.
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package.path = "./?.lua;./?/init.lua;" .. package.path
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local T = require("tests.modkit")
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local Data = T.fixtures.fresh()
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local Font = require("src.render.Font")
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Font.load(Data)
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local BattleState = require("src.battle.BattleState")
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local Pokemon = require("src.pokemon.Pokemon")
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local SaveData = require("src.core.SaveData")
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-- the shared fixture type chart is just the GRASS/FIRE/WATER triangle
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-- (tests/fixture_data/type_chart.lua) with no 0x row, so this suite adds
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-- its own immune matchups: one for the SetDamageEffects moves under test
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-- and a separate one for OHKO, kept apart so neither probe leaks into
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-- the other's assertion
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table.insert(Data.type_chart.matchups,
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{ attacker = "FIX_ATK_A", defender = "FIX_DEF_A", multiplier = 0 })
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table.insert(Data.type_chart.matchups,
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{ attacker = "FIX_ATK_B", defender = "FIX_DEF_B", multiplier = 0 })
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local TypeChart = require("src.battle.TypeChart")
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TypeChart.load(Data)
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-- Night Shade's shape: 0 BP, fixed damage equal to the user's level,
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-- attacking type that the fixture chart marks as 0x against the target
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Data.moves.FIX_NIGHT_SHADE = {
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id = "FIX_NIGHT_SHADE", index = 98, name = "FIX NSHADE",
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type = "FIX_ATK_A", power = 0, accuracy = 100, pp = 15,
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effect = "SPECIAL_DAMAGE_EFFECT", fixedDamage = "level",
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}
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Data.moves.FIX_SUPER_FANG = {
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id = "FIX_SUPER_FANG", index = 97, name = "FIX SFANG",
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type = "FIX_ATK_A", power = 1, accuracy = 90, pp = 10,
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effect = "SUPER_FANG_EFFECT",
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}
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Data.moves.FIX_FISSURE = {
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id = "FIX_FISSURE", index = 96, name = "FIX FISSURE",
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type = "FIX_ATK_B", power = 1, accuracy = 30, pp = 5,
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effect = "OHKO_EFFECT",
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}
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local function mkseq(vals) -- scripted rng: pops vals, then max rolls
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local i = 0
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return function(_, hi)
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i = i + 1
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return vals[i] ~= nil and vals[i] or hi
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end
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end
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-- a battle whose target's live types are forced to `types` (curTypes is
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-- what TypeChart reads, BattleState.lua:443)
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local function mkbattle(level, types)
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local save = SaveData.newGame()
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save.party = { Pokemon.new(Data, "FIXMON_A", level) }
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local game = { data = Data, save = save,
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stack = { top = function() return nil end, push = function() end } }
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local b = BattleState.newWild(game, "FIXMON_C", 5)
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b.enemy.curTypes = types
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b.rng = mkseq({ 0 }) -- accuracy hits; nothing else rolls
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return b
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end
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-- FIX_ATK_A is 0x against FIX_DEF_A, and Night Shade lands anyway
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T.eq(TypeChart.effectiveness("FIX_ATK_A", { "FIX_DEF_A" }), 0,
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"FIX_ATK_A does nothing to FIX_DEF_A")
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local ns = mkbattle(12, { "FIX_DEF_A" })
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local before = ns.enemy.mon.hp
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ns:performMove(ns.player, ns.enemy, { id = "FIX_NIGHT_SHADE", pp = 15 })
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T.eq(before - ns.enemy.mon.hp, 12, "Night Shade takes level damage off an immune type")
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-- same 0x matchup, and Super Fang still halves
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local sf = mkbattle(12, { "FIX_DEF_A" })
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local hp = sf.enemy.mon.hp
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sf:performMove(sf.player, sf.enemy, { id = "FIX_SUPER_FANG", pp = 10 })
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T.eq(hp - sf.enemy.mon.hp, math.max(1, math.floor(hp / 2)),
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"Super Fang halves an immune type's HP")
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-- OHKO keeps its immunity gate: it does return through AdjustDamageForMoveType
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T.eq(TypeChart.effectiveness("FIX_ATK_B", { "FIX_DEF_B" }), 0,
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"FIX_ATK_B does nothing to FIX_DEF_B")
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local ko = mkbattle(50, { "FIX_DEF_B" })
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local full = ko.enemy.mon.hp
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ko:performMove(ko.player, ko.enemy, { id = "FIX_FISSURE", pp = 5 })
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T.eq(ko.enemy.mon.hp, full, "OHKO still cannot touch an immune type")
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Data.moves.FIX_NIGHT_SHADE = nil
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Data.moves.FIX_SUPER_FANG = nil
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Data.moves.FIX_FISSURE = nil
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T.finish("fixed damage ignores type immunity")
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