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voxelforge/tests/testBoss.cpp
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#include "testHarness.h"
#include "vf/Boss.h"
#include <string>
#include <vector>
using namespace vf;
namespace {
DragonPlayerInput clingingTo(const DragonFight& fight, float melee) {
DragonPlayerInput input;
input.present = true;
input.position = fight.state().position;
input.meleeDamage = melee;
return input;
}
// Shoots down every crystal in order, breaking a cage first where one stands.
int shatterEveryCrystal(DragonFight& fight) {
int destroyed = 0;
for (int index = 0; index < static_cast<int>(fight.crystals().size()); ++index) {
if (fight.crystals()[static_cast<std::size_t>(index)].cageIntact) {
DragonPlayerInput breaking = clingingTo(fight, 0.0f);
breaking.shootCrystal = index;
breaking.breakCage = true;
fight.tick(breaking);
}
DragonPlayerInput shot = clingingTo(fight, 0.0f);
shot.shootCrystal = index;
destroyed += fight.tick(shot).crystalsDestroyed;
}
return destroyed;
}
WitherFightConfig quickSummon(int summonTicks) {
WitherFightConfig config;
config.summonTicks = summonTicks;
return config;
}
// Drives the wither out of the summon charge and into its ranged phase.
void runUpToRangedPhase(WitherFight& fight, std::vector<WitherTarget>& targets) {
std::vector<WitherHit> nothing;
for (int step = 0; step < 200 && fight.state().phase != BossPhase::Ranged; ++step) {
fight.tick(nothing, targets);
}
}
World witherAltar(const Vec3i& base, bool alongX) {
World world;
world.setBlock(base.x, base.y, base.z, witherBaseBlock());
for (int along = -1; along <= 1; ++along) {
int ax = alongX ? base.x + along : base.x;
int az = alongX ? base.z : base.z + along;
world.setBlock(ax, base.y + 1, az, witherBaseBlock());
world.setBlock(ax, base.y + 2, az, witherHeadBlock());
}
return world;
}
} // namespace
VF_TEST(everyBossKindAndPhaseHasAName) {
for (int index = 0; index < static_cast<int>(BossKind::Count); ++index) {
CHECK(std::string(bossKindName(static_cast<BossKind>(index))) != std::string("unknown"));
}
for (int index = 0; index < static_cast<int>(BossPhase::Count); ++index) {
CHECK(std::string(bossPhaseName(static_cast<BossPhase>(index))) != std::string("unknown"));
}
CHECK(std::string(bossPhaseName(BossPhase::Armored)) == std::string("armored"));
}
VF_TEST(theBossBarTranslatesHealthIntoNotchesAndPercent) {
BossBar bar;
bar.style = BossBarStyle::Notched10;
bar.setFromHealth(200.0f, 200.0f);
CHECK_NEAR(bar.progress, 1.0f, 1e-6f);
CHECK_EQ(bar.notchCount(), 10);
CHECK_EQ(bar.filledNotches(), 10);
CHECK_EQ(bar.percent(), 100);
bar.setFromHealth(95.0f, 200.0f);
CHECK_EQ(bar.filledNotches(), 4);
CHECK_EQ(bar.percent(), 48);
bar.setFromHealth(0.0f, 200.0f);
CHECK_EQ(bar.filledNotches(), 0);
CHECK_EQ(bar.percent(), 0);
// Overheal and negative health both clamp instead of drawing past the ends.
bar.setFromHealth(500.0f, 200.0f);
CHECK_NEAR(bar.progress, 1.0f, 1e-6f);
bar.setFromHealth(-10.0f, 200.0f);
CHECK_NEAR(bar.progress, 0.0f, 1e-6f);
bar.style = BossBarStyle::Notched6;
bar.setFromHealth(150.0f, 300.0f);
CHECK_EQ(bar.notchCount(), 6);
CHECK_EQ(bar.filledNotches(), 3);
bar.style = BossBarStyle::Solid;
CHECK_EQ(bar.notchCount(), 1);
bar.style = BossBarStyle::Notched12;
CHECK_EQ(bar.notchCount(), 12);
bar.style = BossBarStyle::Notched20;
CHECK_EQ(bar.notchCount(), 20);
}
VF_TEST(crystalsAreBuiltOnTopOfTheGeneratedObsidianPillars) {
EndGenerator end;
std::vector<ObsidianPillar> pillars = end.pillars();
std::vector<CrystalNode> crystals = crystalsFromPillars(pillars);
CHECK_EQ(crystals.size(), pillars.size());
CHECK(crystals.size() >= 8u);
int caged = 0;
for (std::size_t i = 0; i < crystals.size(); ++i) {
CHECK(crystals[i].alive);
CHECK_EQ(crystals[i].position.x, pillars[i].base.x);
CHECK_EQ(crystals[i].position.z, pillars[i].base.z);
CHECK_EQ(crystals[i].position.y, pillars[i].base.y + pillars[i].height + 1);
CHECK(crystals[i].caged == pillars[i].crowned);
CHECK(crystals[i].cageIntact == pillars[i].crowned);
if (crystals[i].caged) ++caged;
}
// The tall pillars in the generated ring carry cages.
CHECK(caged > 0);
}
VF_TEST(theDragonOrbitsTheGeneratedExitPortalColumn) {
EndGenerator end;
DragonFight fight(end, 1234u);
CHECK(fight.state().kind == BossKind::EnderDragon);
CHECK(fight.state().bar.visible);
CHECK(fight.state().bar.color == BossBarColor::Pink);
CHECK_NEAR(fight.portalCenter().y, static_cast<float>(end.surfaceHeight(0, 0)), 1e-4f);
CHECK_EQ(fight.eggPosition().y, end.surfaceHeight(0, 0) + 1);
CHECK(fight.brain().structureValid());
DragonPlayerInput idle;
idle.present = false;
float startAngle = fight.state().orbitAngle;
for (int step = 0; step < 20; ++step) fight.tick(idle);
CHECK(fight.state().phase == BossPhase::Circling);
CHECK(fight.state().orbitAngle > startAngle);
float radius = behaviorHorizontalDistance(fight.state().position, fight.portalCenter());
CHECK_NEAR(radius, fight.settings().orbitRadius, 0.05f);
CHECK_EQ(fight.aliveCrystalCount(), static_cast<int>(fight.crystals().size()));
}
VF_TEST(livingCrystalsHealTheDragonFasterThanTheSwordDrainsIt) {
EndGenerator end;
DragonFight fight(end, 99u);
float fullHealth = fight.state().health;
float totalHealed = 0.0f;
for (int step = 0; step < 200; ++step) {
BossTickReport report = fight.tick(clingingTo(fight, 5.0f));
totalHealed += report.healedThisTick;
}
CHECK(totalHealed > 0.0f);
CHECK(fight.state().damageTaken > 0.0f);
CHECK_NEAR(fight.state().health, fullHealth, 1e-3f);
CHECK(!fight.exitPortalOpen());
CHECK(fight.aliveCrystalCount() == static_cast<int>(fight.crystals().size()));
}
VF_TEST(aCagedCrystalIgnoresShotsUntilTheCageComesDown) {
EndGenerator end;
DragonFight fight(end, 7u);
int cagedIndex = -1;
for (int index = 0; index < static_cast<int>(fight.crystals().size()); ++index) {
if (fight.crystals()[static_cast<std::size_t>(index)].cageIntact) {
cagedIndex = index;
break;
}
}
CHECK(cagedIndex >= 0);
if (cagedIndex < 0) return;
DragonPlayerInput blocked = clingingTo(fight, 0.0f);
blocked.shootCrystal = cagedIndex;
CHECK_EQ(fight.tick(blocked).crystalsDestroyed, 0);
CHECK(fight.crystals()[static_cast<std::size_t>(cagedIndex)].alive);
DragonPlayerInput breaking = blocked;
breaking.breakCage = true;
CHECK_EQ(fight.tick(breaking).crystalsDestroyed, 0);
CHECK(!fight.crystals()[static_cast<std::size_t>(cagedIndex)].cageIntact);
CHECK_EQ(fight.tick(blocked).crystalsDestroyed, 1);
CHECK(!fight.crystals()[static_cast<std::size_t>(cagedIndex)].alive);
// A second shot at the same wreck changes nothing.
CHECK_EQ(fight.tick(blocked).crystalsDestroyed, 0);
// Nonsense indices are ignored rather than crashing.
DragonPlayerInput bogus = clingingTo(fight, 0.0f);
bogus.shootCrystal = 9999;
CHECK_EQ(fight.tick(bogus).crystalsDestroyed, 0);
}
VF_TEST(theWholeDragonFightRunsFromTheCrystalsToTheEgg) {
EndGenerator end;
DragonFight fight(end, 4242u);
int crystalCount = static_cast<int>(fight.crystals().size());
CHECK_EQ(shatterEveryCrystal(fight), crystalCount);
CHECK_EQ(fight.aliveCrystalCount(), 0);
int descentTicks = 0;
while (fight.state().phase != BossPhase::Perching && descentTicks < 200) {
fight.tick(clingingTo(fight, 0.0f));
++descentTicks;
}
CHECK(fight.state().phase == BossPhase::Perching);
int settleTicks = 0;
while (fight.state().position.y > fight.portalCenter().y + fight.settings().perchHeight + 0.01f &&
settleTicks < 300) {
fight.tick(clingingTo(fight, 0.0f));
++settleTicks;
}
CHECK(settleTicks < 300);
CHECK_NEAR(fight.state().position.y,
fight.portalCenter().y + fight.settings().perchHeight, 1e-3f);
BossTickReport report;
int killTicks = 0;
while (!report.defeated && killTicks < 600) {
report = fight.tick(clingingTo(fight, 8.0f));
++killTicks;
}
CHECK(report.defeated);
CHECK(fight.state().phase == BossPhase::Defeated);
CHECK(!fight.state().alive);
CHECK(!fight.state().bar.visible);
CHECK_NEAR(fight.state().health, 0.0f, 1e-4f);
CHECK(fight.state().attacksLaunched > 0);
CHECK(fight.exitPortalOpen());
CHECK(fight.dragonEggDropped());
CHECK(fight.eggPosition() == Vec3i(0, end.surfaceHeight(0, 0) + 1, 0));
// The tick after the kill is a no-op, not a second death.
BossTickReport after = fight.tick(clingingTo(fight, 8.0f));
CHECK(after.defeated);
CHECK(!after.phaseChanged);
World world;
CHECK(fight.placeVictoryStructures(world, end));
CHECK(world.blockAt(0, end.surfaceHeight(0, 0), 0) == Block::EndPortal);
CHECK(world.blockAt(2, end.surfaceHeight(0, 0), 2) == Block::Bedrock);
}
VF_TEST(aLivingDragonRefusesToHandOverItsRewards) {
EndGenerator end;
DragonFight fight(end, 5u);
World world;
CHECK(!fight.placeVictoryStructures(world, end));
CHECK_EQ(world.chunkCount(), 0u);
CHECK(!fight.dragonEggDropped());
}
VF_TEST(twoDragonFightsOnTheSameSeedAndScriptRunIdentically) {
EndGenerator end;
auto playOut = [&end](std::vector<float>& healthTrack, Vec3& endPosition, int& attacks) {
DragonFight fight(end, 31337u);
shatterEveryCrystal(fight);
for (int step = 0; step < 300; ++step) {
BossTickReport report = fight.tick(clingingTo(fight, 3.0f));
healthTrack.push_back(report.bossHealth);
}
endPosition = fight.state().position;
attacks = fight.state().attacksLaunched;
};
std::vector<float> firstTrack;
std::vector<float> secondTrack;
Vec3 firstEnd;
Vec3 secondEnd;
int firstAttacks = 0;
int secondAttacks = 0;
playOut(firstTrack, firstEnd, firstAttacks);
playOut(secondTrack, secondEnd, secondAttacks);
CHECK_EQ(firstTrack.size(), secondTrack.size());
for (std::size_t i = 0; i < firstTrack.size() && i < secondTrack.size(); ++i) {
CHECK_NEAR(firstTrack[i], secondTrack[i], 1e-6f);
}
CHECK_NEAR(firstEnd.x, secondEnd.x, 1e-6f);
CHECK_NEAR(firstEnd.y, secondEnd.y, 1e-6f);
CHECK_EQ(firstAttacks, secondAttacks);
CHECK(firstAttacks > 0);
}
VF_TEST(theWitherIsCalledOutOfASoulSandPatternInEitherOrientation) {
Vec3i base{4, 10, -3};
World alongX = witherAltar(base, true);
bool orientation = false;
CHECK(witherPatternAt(alongX, base, true));
CHECK(!witherPatternAt(alongX, base, false));
CHECK(findWitherPattern(alongX, base, orientation));
CHECK(orientation);
World alongZ = witherAltar(base, false);
CHECK(findWitherPattern(alongZ, base, orientation));
CHECK(!orientation);
WitherFight fight(11u);
CHECK(fight.state().phase == BossPhase::Dormant);
CHECK(!fight.state().bar.visible);
CHECK(fight.summonFromWorld(alongX, base));
CHECK(fight.state().phase == BossPhase::Summoning);
CHECK(fight.state().bar.visible);
CHECK(fight.state().bar.style == BossBarStyle::Notched6);
CHECK_NEAR(fight.state().position.y, static_cast<float>(base.y + 1), 1e-6f);
// The pattern is consumed, so the same altar cannot be reused.
CHECK(alongX.blockAt(base.x, base.y, base.z) == Block::Air);
CHECK(alongX.blockAt(base.x, base.y + 2, base.z) == Block::Air);
WitherFight second(12u);
CHECK(!second.summonFromWorld(alongX, base));
CHECK(second.state().phase == BossPhase::Dormant);
World broken = witherAltar(base, true);
broken.setBlock(base.x, base.y + 2, base.z, Block::Stone);
CHECK(!findWitherPattern(broken, base, orientation));
}
VF_TEST(theWitherIsUntouchableWhileItChargesAndBlastsOnArrival) {
WitherFight fight(5u, quickSummon(6));
fight.begin(Vec3{0.0f, 64.0f, 0.0f});
std::vector<WitherTarget> targets;
targets.push_back(WitherTarget{Vec3{4.0f, 64.0f, 0.0f}, 20.0f, true});
targets.push_back(WitherTarget{Vec3{40.0f, 64.0f, 0.0f}, 20.0f, true});
std::vector<WitherHit> heavy;
heavy.push_back(WitherHit{100.0f, false});
for (int step = 0; step < 5; ++step) {
BossTickReport report = fight.tick(heavy, targets);
CHECK(report.phase == BossPhase::Summoning);
CHECK_NEAR(report.bossHealth, fight.settings().maxHealth, 1e-4f);
}
BossTickReport blast = fight.tick(heavy, targets);
CHECK(blast.phase == BossPhase::Explosive);
CHECK(blast.phaseChanged);
CHECK_NEAR(blast.damageToTargets, fight.settings().summonBlastDamage, 1e-4f);
CHECK_NEAR(targets[0].health, 20.0f - fight.settings().summonBlastDamage, 1e-4f);
CHECK_NEAR(targets[1].health, 20.0f, 1e-4f);
BossTickReport settle = fight.tick(std::vector<WitherHit>{}, targets);
CHECK(settle.phase == BossPhase::Ranged);
}
VF_TEST(theWitherArmoursUpExactlyAtHalfHealth) {
WitherFight fight(21u, quickSummon(3));
fight.begin(Vec3{0.0f, 64.0f, 0.0f});
std::vector<WitherTarget> targets;
targets.push_back(WitherTarget{Vec3{10.0f, 64.0f, 0.0f}, 200.0f, true});
runUpToRangedPhase(fight, targets);
CHECK(fight.state().phase == BossPhase::Ranged);
CHECK(!fight.armored());
float maxHealth = fight.settings().maxHealth;
std::vector<WitherHit> nearlyHalf;
nearlyHalf.push_back(WitherHit{maxHealth * 0.5f - 1.0f, false});
BossTickReport stillBare = fight.tick(nearlyHalf, targets);
CHECK(stillBare.phase == BossPhase::Ranged);
CHECK_NEAR(stillBare.bossHealth, maxHealth * 0.5f + 1.0f, 1e-4f);
CHECK(!fight.armored());
std::vector<WitherHit> theLastPoint;
theLastPoint.push_back(WitherHit{1.0f, false});
BossTickReport onTheLine = fight.tick(theLastPoint, targets);
CHECK_NEAR(onTheLine.bossHealth, maxHealth * 0.5f, 1e-4f);
CHECK(onTheLine.phase == BossPhase::Armored);
CHECK(onTheLine.phaseChanged);
CHECK(fight.armored());
}
VF_TEST(armourStopsProjectilesButNotABladeAndTheWitherRegenerates) {
WitherFight fight(33u, quickSummon(3));
fight.begin(Vec3{0.0f, 64.0f, 0.0f});
std::vector<WitherTarget> targets;
targets.push_back(WitherTarget{Vec3{10.0f, 64.0f, 0.0f}, 400.0f, true});
runUpToRangedPhase(fight, targets);
std::vector<WitherHit> half;
half.push_back(WitherHit{fight.settings().maxHealth * 0.5f, false});
fight.tick(half, targets);
CHECK(fight.armored());
float before = fight.state().health;
std::vector<WitherHit> arrows;
arrows.push_back(WitherHit{60.0f, true});
BossTickReport shrugged = fight.tick(arrows, targets);
CHECK(shrugged.bossHealth >= before);
CHECK(shrugged.healedThisTick > 0.0f);
before = fight.state().health;
std::vector<WitherHit> blade;
blade.push_back(WitherHit{60.0f, false});
BossTickReport cut = fight.tick(blade, targets);
CHECK(cut.bossHealth < before - 50.0f);
CHECK(fight.armored());
}
VF_TEST(theArmouredWitherCallsMinionsUpToItsLimitAndKeepsShooting) {
WitherFight fight(44u, quickSummon(3));
fight.begin(Vec3{0.0f, 64.0f, 0.0f});
std::vector<WitherTarget> targets;
targets.push_back(WitherTarget{Vec3{12.0f, 64.0f, 0.0f}, 100000.0f, true});
runUpToRangedPhase(fight, targets);
std::vector<WitherHit> half;
half.push_back(WitherHit{fight.settings().maxHealth * 0.5f, false});
fight.tick(half, targets);
CHECK(fight.armored());
std::vector<WitherHit> nothing;
float targetHealthBefore = targets[0].health;
for (int step = 0; step < 600; ++step) fight.tick(nothing, targets);
CHECK_EQ(fight.aliveMinionCount(), fight.settings().maxMinions);
CHECK_EQ(fight.state().minionsSummoned, fight.settings().maxMinions);
CHECK(targets[0].health < targetHealthBefore);
CHECK(fight.state().attacksLaunched > 10);
for (const BossMinion& minion : fight.minions()) {
CHECK(minion.alive);
CHECK(behaviorHorizontalDistance(minion.position, fight.state().position) > 0.0f);
}
}
VF_TEST(theWitherAlwaysSwitchesToTheNearestLivingTarget) {
WitherFight fight(55u, quickSummon(3));
fight.begin(Vec3{0.0f, 64.0f, 0.0f});
std::vector<WitherTarget> targets;
targets.push_back(WitherTarget{Vec3{60.0f, 64.0f, 0.0f}, 500.0f, true});
targets.push_back(WitherTarget{Vec3{12.0f, 64.0f, 0.0f}, 500.0f, true});
targets.push_back(WitherTarget{Vec3{90.0f, 64.0f, 0.0f}, 500.0f, true});
runUpToRangedPhase(fight, targets);
std::vector<WitherHit> nothing;
fight.tick(nothing, targets);
CHECK_EQ(fight.state().targetIndex, 1);
targets[1].alive = false;
fight.tick(nothing, targets);
CHECK_EQ(fight.state().targetIndex, 0);
targets[0].alive = false;
targets[2].alive = false;
BossTickReport alone = fight.tick(nothing, targets);
CHECK_EQ(fight.state().targetIndex, -1);
CHECK_NEAR(alone.damageToTargets, 0.0f, 1e-6f);
}
VF_TEST(theWitherDiesWhenItsHealthRunsOutAndStopsTicking) {
WitherFight fight(66u, quickSummon(3));
fight.begin(Vec3{0.0f, 64.0f, 0.0f});
std::vector<WitherTarget> targets;
targets.push_back(WitherTarget{Vec3{10.0f, 64.0f, 0.0f}, 500.0f, true});
runUpToRangedPhase(fight, targets);
std::vector<WitherHit> execution;
execution.push_back(WitherHit{fight.settings().maxHealth, false});
BossTickReport killed = fight.tick(execution, targets);
CHECK(killed.defeated);
CHECK(killed.phase == BossPhase::Defeated);
CHECK(!fight.state().alive);
CHECK(!fight.state().bar.visible);
CHECK_NEAR(fight.state().health, 0.0f, 1e-6f);
int attacksAtDeath = fight.state().attacksLaunched;
float targetHealth = targets[0].health;
for (int step = 0; step < 50; ++step) fight.tick(execution, targets);
CHECK_EQ(fight.state().attacksLaunched, attacksAtDeath);
CHECK_NEAR(targets[0].health, targetHealth, 1e-6f);
}
VF_TEST(twoWitherFightsOnTheSameSeedAndScriptRunIdentically) {
auto playOut = [](std::vector<float>& healthTrack, std::vector<float>& targetTrack,
std::vector<Vec3>& minionSpots) {
WitherFight fight(0xbeefu, quickSummon(4));
fight.begin(Vec3{0.0f, 64.0f, 0.0f});
std::vector<WitherTarget> targets;
targets.push_back(WitherTarget{Vec3{14.0f, 64.0f, 0.0f}, 100000.0f, true});
targets.push_back(WitherTarget{Vec3{-30.0f, 64.0f, 8.0f}, 100000.0f, true});
for (int step = 0; step < 500; ++step) {
std::vector<WitherHit> incoming;
if (step % 7 == 0) incoming.push_back(WitherHit{2.5f, step % 14 == 0});
BossTickReport report = fight.tick(incoming, targets);
healthTrack.push_back(report.bossHealth);
targetTrack.push_back(targets[0].health);
}
for (const BossMinion& minion : fight.minions()) minionSpots.push_back(minion.position);
};
std::vector<float> firstHealth;
std::vector<float> firstTargets;
std::vector<Vec3> firstMinions;
std::vector<float> secondHealth;
std::vector<float> secondTargets;
std::vector<Vec3> secondMinions;
playOut(firstHealth, firstTargets, firstMinions);
playOut(secondHealth, secondTargets, secondMinions);
CHECK_EQ(firstHealth.size(), secondHealth.size());
for (std::size_t i = 0; i < firstHealth.size() && i < secondHealth.size(); ++i) {
CHECK_NEAR(firstHealth[i], secondHealth[i], 1e-6f);
CHECK_NEAR(firstTargets[i], secondTargets[i], 1e-6f);
}
CHECK(!firstMinions.empty());
CHECK_EQ(firstMinions.size(), secondMinions.size());
for (std::size_t i = 0; i < firstMinions.size() && i < secondMinions.size(); ++i) {
CHECK_NEAR(firstMinions[i].x, secondMinions[i].x, 1e-6f);
CHECK_NEAR(firstMinions[i].z, secondMinions[i].z, 1e-6f);
}
}
VF_TEST(bothBossesAreDrivenByAValidBehaviourTree) {
EndGenerator end;
DragonFight dragon(end, 1u);
CHECK(dragon.brain().structureValid());
CHECK(dragon.brain().stats().nodeCount > 10);
CHECK(dragon.brain().stats().depth <= maxBehaviorDepth);
CHECK_EQ(dragon.brain().root()->name(), std::string("dragonRoot"));
WitherFight wither(2u);
CHECK(wither.brain().structureValid());
CHECK(wither.brain().stats().nodeCount > 10);
CHECK(wither.brain().stats().depth <= maxBehaviorDepth);
CHECK_EQ(wither.brain().root()->name(), std::string("witherRoot"));
dragon.tick(clingingTo(dragon, 0.0f));
CHECK_EQ(dragon.context().tick, 1);
CHECK_EQ(dragon.brain().tickCount(), 1);
}
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