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voxelforge/tests/testBrewing.cpp
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#include <vector>
#include "testHarness.h"
#include "vf/Brewing.h"
using namespace vf;
namespace {
using Ingredient = BrewRecipe::Ingredient;
BrewingStandState fueledStand(const PotionItem& bottle, int blazePowder = 5) {
BrewingStandState stand;
setBottle(stand, 0, bottle);
addFuel(stand, blazePowder);
return stand;
}
// Loads one ingredient and runs the stand until the brew lands. Returns the
// bottle in the first slot afterwards.
PotionItem brewOnce(BrewingStandState& stand, Ingredient ingredient) {
setIngredient(stand, ingredient, 1);
for (int tick = 0; tick < brewDurationTicks; ++tick) tickBrewing(stand);
return stand.bottles[0].potion;
}
// Walks a whole chain of ingredients through a single bottle.
PotionItem brewChain(const PotionItem& start, const std::vector<Ingredient>& chain) {
BrewingStandState stand = fueledStand(start, 10);
PotionItem bottle = start;
for (Ingredient ingredient : chain) bottle = brewOnce(stand, ingredient);
return bottle;
}
PotionItem potionOf(PotionKind kind) {
PotionItem potion;
potion.kind = kind;
return potion;
}
int durationOf(PotionKind kind, bool upgraded, bool extended) {
PotionItem potion = potionOf(kind);
potion.upgraded = upgraded;
potion.extended = extended;
return potionEffect(potion).durationTicks;
}
int levelOf(PotionKind kind, bool upgraded, bool extended) {
PotionItem potion = potionOf(kind);
potion.upgraded = upgraded;
potion.extended = extended;
return potionEffect(potion).level();
}
} // namespace
VF_TEST(theStandsPublishedConstantsAreTheOnesTheRestOfTheEngineWasBuiltAgainst) {
CHECK_EQ(brewingBottleSlots, 3);
CHECK_EQ(brewDurationTicks, 400);
CHECK_EQ(brewDurationTicks, 20 * ticksPerSecond);
CHECK_EQ(brewsPerBlazePowder, 20);
CHECK_EQ(static_cast<int>(PotionKind::Count), 17);
CHECK_EQ(static_cast<int>(BrewRecipe::Ingredient::None), 0);
// A stand with one blaze powder in it runs a literal twenty second brew and
// has nineteen brews of fuel left afterwards.
BrewingStandState stand;
setBottle(stand, 0, PotionItem{});
addFuel(stand, 1);
setIngredient(stand, Ingredient::NetherWart, 1);
CHECK_EQ(stand.fuel, 20);
int completedOn = 0;
for (int tick = 1; tick <= 500; ++tick) {
if (tickBrewing(stand) && completedOn == 0) completedOn = tick;
}
CHECK_EQ(completedOn, 400);
CHECK_EQ(stand.fuel, 19);
}
VF_TEST(recipeTableHasNoDuplicateInputAndIngredientPairs) {
const std::vector<BrewRecipe>& recipes = brewRecipes();
CHECK(recipes.size() >= 19);
int collisions = 0;
int selfLoops = 0;
int emptyIngredients = 0;
for (std::size_t i = 0; i < recipes.size(); ++i) {
if (recipes[i].ingredient == Ingredient::None) ++emptyIngredients;
if (recipes[i].input == recipes[i].output) ++selfLoops;
for (std::size_t j = i + 1; j < recipes.size(); ++j) {
if (recipes[i].input == recipes[j].input &&
recipes[i].ingredient == recipes[j].ingredient) {
++collisions;
}
}
}
CHECK_EQ(collisions, 0);
CHECK_EQ(selfLoops, 0);
CHECK_EQ(emptyIngredients, 0);
}
VF_TEST(netherWartTurnsWaterIntoAwkwardAndAwkwardOpensEveryBasePotion) {
bool changed = false;
CHECK_EQ(brewResult(PotionItem{}, Ingredient::NetherWart, changed).kind, PotionKind::Awkward);
CHECK(changed);
const struct { Ingredient ingredient; PotionKind expected; } branches[] = {
{Ingredient::Sugar, PotionKind::Swiftness},
{Ingredient::GlisteringMelon, PotionKind::Healing},
{Ingredient::SpiderEye, PotionKind::Poison},
{Ingredient::BlazePowder, PotionKind::Strength},
{Ingredient::MagmaCream, PotionKind::FireResistance},
{Ingredient::PufferFish, PotionKind::WaterBreathing},
{Ingredient::GoldenCarrot, PotionKind::NightVision},
{Ingredient::GhastTear, PotionKind::Regeneration},
{Ingredient::RabbitFoot, PotionKind::Leaping},
};
for (const auto& branch : branches) {
bool branched = false;
PotionItem brewed = brewResult(potionOf(PotionKind::Awkward), branch.ingredient, branched);
CHECK(branched);
CHECK_EQ(brewed.kind, branch.expected);
}
}
VF_TEST(aStandTurnsWaterIntoAwkwardOnTheFourHundredthTickAndNotOneTickEarlier) {
BrewingStandState stand = fueledStand(PotionItem{}, 1);
CHECK_EQ(stand.fuel, brewsPerBlazePowder);
CHECK(setIngredient(stand, Ingredient::NetherWart, 1));
bool completedEarly = false;
for (int tick = 1; tick < brewDurationTicks; ++tick) {
if (tickBrewing(stand)) completedEarly = true;
}
CHECK(!completedEarly);
CHECK(stand.brewing);
CHECK_EQ(stand.progressTicks, brewDurationTicks - 1);
CHECK_EQ(stand.bottles[0].potion.kind, PotionKind::Water);
CHECK(tickBrewing(stand));
CHECK_EQ(stand.bottles[0].potion.kind, PotionKind::Awkward);
CHECK_EQ(stand.progressTicks, 0);
CHECK(!stand.brewing);
CHECK_EQ(stand.fuel, brewsPerBlazePowder - 1);
CHECK_EQ(stand.ingredientCount, 0);
CHECK_EQ(stand.ingredient, Ingredient::None);
}
VF_TEST(theFullWaterToUpgradedSplashStrengthCycleRunsOnOneStand) {
BrewingStandState stand = fueledStand(PotionItem{}, 1);
CHECK_EQ(brewOnce(stand, Ingredient::NetherWart).kind, PotionKind::Awkward);
CHECK_EQ(brewOnce(stand, Ingredient::BlazePowder).kind, PotionKind::Strength);
PotionItem upgraded = brewOnce(stand, Ingredient::Glowstone);
CHECK(upgraded.upgraded);
CHECK(!upgraded.extended);
PotionItem splash = brewOnce(stand, Ingredient::Gunpowder);
CHECK_EQ(splash.form, PotionItem::Form::Splash);
CHECK_EQ(splash.kind, PotionKind::Strength);
CHECK(splash.upgraded);
CHECK_EQ(stand.fuel, brewsPerBlazePowder - 4);
EffectInstance effect = potionEffect(splash);
CHECK_EQ(effect.kind, EffectKind::Strength);
CHECK_EQ(effect.level(), 2);
CHECK_EQ(effect.durationTicks, 1800);
}
VF_TEST(glowstoneRaisesTheLevelAndShortensWhileRedstoneOnlyLengthens) {
PotionItem plain = potionOf(PotionKind::Swiftness);
PotionItem upgraded = brewChain(plain, {Ingredient::Glowstone});
PotionItem extended = brewChain(plain, {Ingredient::Redstone});
CHECK_EQ(potionEffect(plain).level(), 1);
CHECK_EQ(potionEffect(plain).durationTicks, 3600);
CHECK(upgraded.upgraded);
CHECK_EQ(potionEffect(upgraded).level(), 2);
CHECK_EQ(potionEffect(upgraded).durationTicks, 1800);
CHECK(extended.extended);
CHECK_EQ(potionEffect(extended).level(), 1);
CHECK_EQ(potionEffect(extended).durationTicks, 9600);
}
VF_TEST(glowstoneAndRedstoneReplaceEachOtherAndNeverStack) {
BrewingStandState stand = fueledStand(potionOf(PotionKind::Swiftness), 5);
PotionItem extended = brewOnce(stand, Ingredient::Redstone);
CHECK(extended.extended);
PotionItem upgraded = brewOnce(stand, Ingredient::Glowstone);
CHECK(upgraded.upgraded);
CHECK(!upgraded.extended);
PotionItem backToExtended = brewOnce(stand, Ingredient::Redstone);
CHECK(backToExtended.extended);
CHECK(!backToExtended.upgraded);
bool changed = false;
brewResult(backToExtended, Ingredient::Redstone, changed);
CHECK(!changed);
}
VF_TEST(potionsThatIgnoreAModifierRejectItInsteadOfSilentlyConsumingTheBrew) {
const PotionKind noGlowstone[] = {PotionKind::Weakness, PotionKind::FireResistance,
PotionKind::WaterBreathing, PotionKind::NightVision,
PotionKind::Invisibility};
for (PotionKind kind : noGlowstone) {
bool changed = false;
brewResult(potionOf(kind), Ingredient::Glowstone, changed);
CHECK(!changed);
}
const PotionKind noRedstone[] = {PotionKind::Healing, PotionKind::Harming};
for (PotionKind kind : noRedstone) {
bool changed = false;
brewResult(potionOf(kind), Ingredient::Redstone, changed);
CHECK(!changed);
}
bool healingUpgrades = false;
PotionItem strongHealing = brewResult(potionOf(PotionKind::Healing), Ingredient::Glowstone,
healingUpgrades);
CHECK(healingUpgrades);
CHECK_EQ(potionEffect(strongHealing).level(), 2);
}
VF_TEST(fermentedSpiderEyeCorruptsAlongTheWholeInversionChain) {
const struct { PotionKind from; PotionKind to; } inversions[] = {
{PotionKind::Water, PotionKind::Weakness},
{PotionKind::NightVision, PotionKind::Invisibility},
{PotionKind::Healing, PotionKind::Harming},
{PotionKind::Poison, PotionKind::Harming},
{PotionKind::Swiftness, PotionKind::Slowness},
{PotionKind::Leaping, PotionKind::Slowness},
{PotionKind::Strength, PotionKind::Weakness},
};
for (const auto& inversion : inversions) {
bool changed = false;
PotionItem corrupted = brewResult(potionOf(inversion.from), Ingredient::FermentedSpiderEye,
changed);
CHECK(changed);
CHECK_EQ(corrupted.kind, inversion.to);
}
const PotionKind uncorruptible[] = {PotionKind::Regeneration, PotionKind::FireResistance,
PotionKind::WaterBreathing, PotionKind::Awkward};
for (PotionKind kind : uncorruptible) {
bool changed = false;
brewResult(potionOf(kind), Ingredient::FermentedSpiderEye, changed);
CHECK(!changed);
}
}
VF_TEST(aKindChangeWipesTheModifiersButKeepsTheSplashForm) {
PotionItem source = potionOf(PotionKind::Swiftness);
source.upgraded = true;
source.form = PotionItem::Form::Splash;
bool changed = false;
PotionItem corrupted = brewResult(source, Ingredient::FermentedSpiderEye, changed);
CHECK(changed);
CHECK_EQ(corrupted.kind, PotionKind::Slowness);
CHECK(!corrupted.upgraded);
CHECK(!corrupted.extended);
CHECK_EQ(corrupted.form, PotionItem::Form::Splash);
}
VF_TEST(brewResultLeavesTheInputAloneWhenTheIngredientDoesNothing) {
PotionItem source = potionOf(PotionKind::Regeneration);
source.extended = true;
bool changed = true;
PotionItem untouched = brewResult(source, Ingredient::SpiderEye, changed);
CHECK(!changed);
CHECK(untouched == source);
changed = true;
PotionItem noIngredient = brewResult(source, Ingredient::None, changed);
CHECK(!changed);
CHECK(noIngredient == source);
}
VF_TEST(theStandConvertsEveryOccupiedBottleInASinglePass) {
BrewingStandState stand;
CHECK(setBottle(stand, 0, PotionItem{}));
CHECK(setBottle(stand, 1, PotionItem{}));
CHECK(setBottle(stand, 2, PotionItem{}));
addFuel(stand, 1);
setIngredient(stand, Ingredient::NetherWart, 1);
for (int tick = 0; tick < brewDurationTicks; ++tick) tickBrewing(stand);
for (const BrewingSlot& bottle : stand.bottles) {
CHECK(bottle.occupied);
CHECK_EQ(bottle.potion.kind, PotionKind::Awkward);
}
CHECK_EQ(stand.fuel, brewsPerBlazePowder - 1);
}
VF_TEST(bottlesTheIngredientCannotChangeAreLeftAsTheyWere) {
BrewingStandState stand;
setBottle(stand, 0, potionOf(PotionKind::Awkward));
setBottle(stand, 1, PotionItem{});
addFuel(stand, 1);
setIngredient(stand, Ingredient::Sugar, 1);
CHECK(canBrew(stand));
for (int tick = 0; tick < brewDurationTicks; ++tick) tickBrewing(stand);
CHECK_EQ(stand.bottles[0].potion.kind, PotionKind::Swiftness);
CHECK_EQ(stand.bottles[1].potion.kind, PotionKind::Water);
CHECK(!stand.bottles[2].occupied);
}
VF_TEST(theStandRefusesAMixedIngredientStackButTakesMoreOfTheSame) {
BrewingStandState stand = fueledStand(PotionItem{}, 1);
CHECK(setIngredient(stand, Ingredient::Sugar, 2));
CHECK_EQ(stand.ingredientCount, 2);
CHECK(!setIngredient(stand, Ingredient::Redstone, 1));
CHECK_EQ(stand.ingredient, Ingredient::Sugar);
CHECK_EQ(stand.ingredientCount, 2);
CHECK(setIngredient(stand, Ingredient::Sugar, 3));
CHECK_EQ(stand.ingredientCount, 5);
CHECK(!setIngredient(stand, Ingredient::None, 1));
CHECK(!setIngredient(stand, Ingredient::Sugar, 0));
CHECK(!setIngredient(stand, Ingredient::Sugar, -4));
}
VF_TEST(everyCompletedBrewSpendsExactlyOneIngredientAndOneFuelCharge) {
BrewingStandState stand;
setBottle(stand, 0, PotionItem{});
addFuel(stand, 1);
setIngredient(stand, Ingredient::NetherWart, 3);
for (int tick = 0; tick < brewDurationTicks; ++tick) tickBrewing(stand);
CHECK_EQ(stand.ingredientCount, 2);
CHECK_EQ(stand.ingredient, Ingredient::NetherWart);
CHECK_EQ(stand.fuel, brewsPerBlazePowder - 1);
// The bottle is awkward now and nether wart does nothing to it, so the
// remaining stack sits unused instead of burning fuel.
CHECK(!canBrew(stand));
for (int tick = 0; tick < brewDurationTicks; ++tick) CHECK(!tickBrewing(stand));
CHECK_EQ(stand.ingredientCount, 2);
CHECK_EQ(stand.fuel, brewsPerBlazePowder - 1);
}
VF_TEST(fuelIsCountedInBrewsAndOneBlazePowderBuysTwenty) {
BrewingStandState stand;
CHECK(!addFuel(stand, 0));
CHECK(!addFuel(stand, -3));
CHECK_EQ(stand.fuel, 0);
CHECK(addFuel(stand, 1));
CHECK_EQ(stand.fuel, brewsPerBlazePowder);
CHECK(addFuel(stand, 2));
CHECK_EQ(stand.fuel, 3 * brewsPerBlazePowder);
}
VF_TEST(anEmptyFuelBarStopsTheStandEvenWithAValidRecipeLoaded) {
BrewingStandState stand;
setBottle(stand, 0, PotionItem{});
setIngredient(stand, Ingredient::NetherWart, 1);
CHECK(!canBrew(stand));
CHECK(!tickBrewing(stand));
CHECK_EQ(stand.progressTicks, 0);
stand.fuel = 1;
CHECK(canBrew(stand));
for (int tick = 0; tick < brewDurationTicks; ++tick) tickBrewing(stand);
CHECK_EQ(stand.fuel, 0);
CHECK_EQ(stand.bottles[0].potion.kind, PotionKind::Awkward);
setIngredient(stand, Ingredient::Sugar, 1);
CHECK(!canBrew(stand));
CHECK(!tickBrewing(stand));
}
VF_TEST(pullingABottleMidBrewThrowsAwayTheProgressBar) {
BrewingStandState stand = fueledStand(PotionItem{}, 1);
setIngredient(stand, Ingredient::NetherWart, 1);
for (int tick = 0; tick < 200; ++tick) tickBrewing(stand);
CHECK_EQ(stand.progressTicks, 200);
bool taken = false;
PotionItem pulled = takeBottle(stand, 0, taken);
CHECK(taken);
CHECK_EQ(pulled.kind, PotionKind::Water);
CHECK_EQ(stand.progressTicks, 0);
CHECK(!stand.bottles[0].occupied);
CHECK(!tickBrewing(stand));
CHECK(setBottle(stand, 0, PotionItem{}));
for (int tick = 1; tick < brewDurationTicks; ++tick) {
CHECK_EQ(tickBrewing(stand), false);
}
CHECK(tickBrewing(stand));
}
VF_TEST(bottleSlotsRejectOutOfRangeIndicesAndDoubleFilling) {
BrewingStandState stand;
CHECK(!setBottle(stand, -1, PotionItem{}));
CHECK(!setBottle(stand, brewingBottleSlots, PotionItem{}));
CHECK(setBottle(stand, 0, PotionItem{}));
CHECK(!setBottle(stand, 0, potionOf(PotionKind::Awkward)));
CHECK_EQ(stand.bottles[0].potion.kind, PotionKind::Water);
bool taken = true;
takeBottle(stand, 1, taken);
CHECK(!taken);
taken = true;
takeBottle(stand, brewingBottleSlots, taken);
CHECK(!taken);
}
VF_TEST(theFourBasePotionsCarryNoEffectAndCannotBeDrunkForOne) {
const PotionKind effectless[] = {PotionKind::Water, PotionKind::Mundane, PotionKind::Thick,
PotionKind::Awkward};
for (PotionKind kind : effectless) {
PotionItem potion = potionOf(kind);
CHECK(!potionHasEffect(potion));
CHECK_EQ(potionEffect(potion).kind, EffectKind::Count);
EffectSet target;
CHECK(!drinkPotion(target, potion));
CHECK(target.active.empty());
}
}
VF_TEST(drinkingWorksOnlyInDrinkableFormAndLandsTheCatalogDuration) {
EffectSet target;
PotionItem regeneration = potionOf(PotionKind::Regeneration);
CHECK(drinkPotion(target, regeneration));
CHECK_EQ(effectLevel(target, EffectKind::Regeneration), 1);
CHECK_EQ(effectDuration(target, EffectKind::Regeneration), 900);
PotionItem splash = regeneration;
splash.form = PotionItem::Form::Splash;
EffectSet other;
CHECK(!drinkPotion(other, splash));
CHECK(other.active.empty());
PotionItem strong = regeneration;
strong.upgraded = true;
CHECK(drinkPotion(target, strong));
CHECK_EQ(effectLevel(target, EffectKind::Regeneration), 2);
CHECK_EQ(effectDuration(target, EffectKind::Regeneration), 440);
}
VF_TEST(splashPotencyFallsOffLinearlyAndClampsAtBothEnds) {
CHECK_NEAR(splashPotency(0.0f, 4.0f), 1.0f, 0.0001f);
CHECK_NEAR(splashPotency(1.0f, 4.0f), 0.75f, 0.0001f);
CHECK_NEAR(splashPotency(4.0f, 4.0f), 0.0f, 0.0001f);
CHECK_NEAR(splashPotency(9.0f, 4.0f), 0.0f, 0.0001f);
CHECK_NEAR(splashPotency(-2.0f, 4.0f), 1.0f, 0.0001f);
CHECK_NEAR(splashPotency(1.0f, 0.0f), 0.0f, 0.0001f);
}
VF_TEST(aSplashTimedPotionKeepsItsLevelAndLosesDurationWithDistance) {
PotionItem splash = potionOf(PotionKind::Swiftness);
splash.form = PotionItem::Form::Splash;
EffectSet atImpact;
CHECK(splashPotion(atImpact, splash, 0.0f, 4.0f));
CHECK_EQ(effectLevel(atImpact, EffectKind::Speed), 1);
CHECK_EQ(effectDuration(atImpact, EffectKind::Speed), 2700);
EffectSet halfway;
CHECK(splashPotion(halfway, splash, 2.0f, 4.0f));
CHECK_EQ(effectDuration(halfway, EffectKind::Speed), 1350);
EffectSet outOfRange;
CHECK(!splashPotion(outOfRange, splash, 4.0f, 4.0f));
CHECK(outOfRange.active.empty());
EffectSet wrongForm;
CHECK(!splashPotion(wrongForm, potionOf(PotionKind::Swiftness), 0.0f, 4.0f));
}
VF_TEST(aSplashInstantPotionScalesItsPotencyInsteadOfItsDuration) {
PotionItem harming = potionOf(PotionKind::Harming);
harming.form = PotionItem::Form::Splash;
EffectSet target;
CHECK(splashPotion(target, harming, 3.0f, 4.0f));
CHECK_EQ(target.active.size(), std::size_t{1});
CHECK_EQ(target.active[0].kind, EffectKind::InstantDamage);
CHECK_EQ(target.active[0].durationTicks, 1);
CHECK_NEAR(target.active[0].potency, 0.25f, 0.0001f);
PotionItem strong = harming;
strong.upgraded = true;
EffectSet direct;
CHECK(splashPotion(direct, strong, 0.0f, 4.0f));
CHECK_EQ(direct.active[0].level(), 2);
CHECK_NEAR(direct.active[0].potency, 1.0f, 0.0001f);
}
VF_TEST(everyPotionKindKeepsTheLevelAndDurationInvariantsOfItsModifiers) {
for (int index = 0; index < static_cast<int>(PotionKind::Count); ++index) {
PotionKind kind = static_cast<PotionKind>(index);
PotionItem plain = potionOf(kind);
EffectInstance base = potionEffect(plain);
CHECK_EQ(potionHasEffect(plain), base.kind != EffectKind::Count);
if (!potionHasEffect(plain)) {
CHECK_EQ(base.durationTicks, 0);
continue;
}
CHECK(base.durationTicks > 0);
CHECK_EQ(base.level(), 1);
int upgradedDuration = durationOf(kind, true, false);
int extendedDuration = durationOf(kind, false, true);
CHECK(extendedDuration >= base.durationTicks);
CHECK(levelOf(kind, false, true) == 1);
int upgradedLevel = levelOf(kind, true, false);
CHECK(upgradedLevel >= 1);
if (upgradedLevel > 1 && !isInstantEffect(base.kind)) {
CHECK(upgradedDuration < base.durationTicks);
}
if (isInstantEffect(base.kind)) {
CHECK_EQ(base.durationTicks, 1);
CHECK_EQ(upgradedDuration, 1);
}
}
}
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