test: cover testDamage
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dualfroz committed
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@@ -157,3 +157,227 @@ VF_TEST(strengthAddsAndWeaknessRemovesFlatMeleeDamage) {
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applyEffect(weak, makeEffect(EffectKind::Weakness, 1, 200));
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CHECK_NEAR(meleeAttackDamage(attacker, bare, weak, false, false, false), 3.0f, 0.001f);
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EffectSet crippled;
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applyEffect(crippled, makeEffect(EffectKind::Weakness, 3, 200));
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CHECK_NEAR(meleeAttackDamage(attacker, bare, crippled, false, false, false), 0.0f, 0.001f);
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}
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VF_TEST(resistanceAndProtectionMultiplyOntoTheArmorReducedHit) {
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CHECK_NEAR(protectionFactor(0), 1.0f, 0.001f);
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CHECK_NEAR(protectionFactor(16), 0.36f, 0.001f);
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CHECK_NEAR(protectionFactor(40), 0.2f, 0.001f);
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uint32_t rng = 21u;
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CombatStats player;
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player.armor = fullSet(Armor::Material::Leather);
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enchantWholeSet(player.armor, EnchantKind::Protection, 4);
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CHECK_EQ(player.armor.protectionPoints(DamageType::Melee), 16);
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EffectSet resisted;
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applyEffect(resisted, makeEffect(EffectKind::Resistance, 2, 400));
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CombatResult hit = applyDamage(player, resisted, hitFor(DamageType::Melee, 12.0f), rng);
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CHECK(hit.applied);
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CHECK(hit.afterArmor < 12.0f);
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CHECK_NEAR(hit.afterResistance, hit.afterArmor * 0.6f, 0.001f);
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CHECK_NEAR(hit.afterProtection, hit.afterResistance * 0.36f, 0.001f);
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CHECK_NEAR(hit.healthLost, hit.afterProtection, 0.001f);
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}
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VF_TEST(featherFallingOnlyHelpsAgainstFallDamage) {
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ArmorSet boots;
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Armor feet = makeArmor(Armor::Material::Iron, Armor::Slot::Boots);
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CHECK(addEnchant(feet.enchants, EnchantKind::FeatherFalling, 4));
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boots.equip(feet);
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CHECK_EQ(boots.protectionPoints(DamageType::Fall), 12);
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CHECK_EQ(boots.protectionPoints(DamageType::Melee), 0);
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CHECK_EQ(boots.protectionPoints(DamageType::Explosion), 0);
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}
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VF_TEST(fallDamageScalesWithDistanceAndJumpBoostRaisesTheSafeDrop) {
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EffectSet none;
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CHECK_NEAR(fallDamage(2.0f, none), 0.0f, 0.001f);
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CHECK_NEAR(fallDamage(3.0f, none), 0.0f, 0.001f);
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CHECK_NEAR(fallDamage(10.0f, none), 7.0f, 0.001f);
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CHECK_NEAR(fallDamage(23.5f, none), 20.0f, 0.001f);
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EffectSet springy;
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applyEffect(springy, makeEffect(EffectKind::JumpBoost, 2, 200));
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CHECK_NEAR(fallDamage(10.0f, springy), 5.0f, 0.001f);
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CHECK_NEAR(fallDamage(5.0f, springy), 0.0f, 0.001f);
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}
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VF_TEST(armorWearsDownAndFallsOffAfterSustainedPunishment) {
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EffectSet none;
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uint32_t rng = 4242u;
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CombatStats player;
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player.armor = fullSet(Armor::Material::Iron);
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int startingPoints = player.armor.totalPoints();
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CHECK_EQ(startingPoints, 15);
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int helmetStart = player.armor.at(Armor::Slot::Helmet).durability;
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CHECK_EQ(helmetStart, 165);
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for (int hit = 0; hit < 200; ++hit) {
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player.health = 20.0f;
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player.alive = true;
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applyDamage(player, none, hitFor(DamageType::Melee, 8.0f), rng);
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idleTicks(player, none, invulnerabilityTicks);
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}
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CHECK(!player.armor.at(Armor::Slot::Helmet).worn());
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CHECK_EQ(player.armor.totalPoints(), 0);
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}
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VF_TEST(unbreakingStretchesArmorDurabilityOverManyHits) {
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uint32_t plainRng = 99u;
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ArmorSet plain;
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plain.equip(makeArmor(Armor::Material::Iron, Armor::Slot::Chestplate));
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uint32_t toughRng = 99u;
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ArmorSet tough;
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Armor chest = makeArmor(Armor::Material::Iron, Armor::Slot::Chestplate);
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CHECK(addEnchant(chest.enchants, EnchantKind::Unbreaking, 3));
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tough.equip(chest);
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int plainSpent = 0;
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int toughSpent = 0;
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for (int hit = 0; hit < 40; ++hit) {
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plainSpent += wearArmor(plain, 8.0f, plainRng);
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toughSpent += wearArmor(tough, 8.0f, toughRng);
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}
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CHECK_EQ(plainSpent, 80);
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CHECK(toughSpent > 0);
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CHECK(toughSpent * 2 < plainSpent);
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}
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VF_TEST(absorptionSoaksDamageBeforeHealthDoes) {
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EffectSet none;
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uint32_t rng = 5u;
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CombatStats player;
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player.absorption = 4.0f;
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CombatResult hit = applyDamage(player, none, hitFor(DamageType::Magic, 6.0f), rng);
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CHECK_NEAR(hit.absorbedByAbsorption, 4.0f, 0.001f);
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CHECK_NEAR(hit.healthLost, 2.0f, 0.001f);
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CHECK_NEAR(player.absorption, 0.0f, 0.001f);
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CHECK_NEAR(player.health, 18.0f, 0.001f);
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}
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VF_TEST(absorptionEffectRefillsTheShieldOnACombatTick) {
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CombatStats player;
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EffectSet effects;
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applyEffect(effects, makeEffect(EffectKind::Absorption, 2, 400));
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applyEffect(effects, makeEffect(EffectKind::HealthBoost, 1, 400));
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tickCombat(player, effects);
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CHECK_NEAR(player.absorption, 8.0f, 0.001f);
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CHECK_NEAR(effectiveMaxHealth(player, effects), 24.0f, 0.001f);
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}
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VF_TEST(knockbackPushesAwayFromTheAttackerAndScalesWithTheEnchant) {
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Vec3 gentle = knockbackVector({0.0f, 0.0f, 0.0f}, {3.0f, 0.0f, 0.0f}, 0.0f);
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CHECK_NEAR(gentle.x, 0.4f, 0.001f);
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CHECK_NEAR(gentle.y, 0.4f, 0.001f);
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CHECK_NEAR(gentle.z, 0.0f, 0.001f);
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Vec3 hard = knockbackVector({0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, -2.0f}, 2.0f);
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CHECK_NEAR(hard.z, -1.4f, 0.001f);
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CHECK_NEAR(hard.x, 0.0f, 0.001f);
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EffectSet none;
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uint32_t rng = 8u;
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CombatStats target;
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DamageEvent event;
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event.source = meleeSource(1, {0.0f, 0.0f, 0.0f}, true);
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event.amount = 4.0f;
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event.direction = {1.0f, 0.0f, 0.0f};
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event.knockbackStrength = 1.0f;
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CombatResult hit = applyDamage(target, none, event, rng);
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CHECK_NEAR(hit.knockback.x, 0.9f, 0.001f);
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}
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VF_TEST(thornsRetaliatesOnSomeHitsAndNeverExceedsFourDamage) {
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EffectSet none;
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uint32_t rng = 1234u;
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CombatStats player;
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player.armor = fullSet(Armor::Material::Diamond);
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enchantWholeSet(player.armor, EnchantKind::Thorns, 3);
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int retaliations = 0;
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for (int hit = 0; hit < 300; ++hit) {
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player.health = 20.0f;
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player.alive = true;
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player.invulnerableTicks = 0;
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DamageEvent event;
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event.source = meleeSource(2, {0.0f, 0.0f, 0.0f}, true);
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event.amount = 5.0f;
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event.direction = {0.0f, 0.0f, 1.0f};
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CombatResult struck = applyDamage(player, none, event, rng);
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if (struck.thornsDamage > 0.0f) {
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++retaliations;
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CHECK(struck.thornsDamage >= 1.0f);
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CHECK(struck.thornsDamage <= 4.0f);
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}
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}
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CHECK(retaliations > 60);
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CHECK(retaliations < 240);
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}
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VF_TEST(environmentalDamageWithoutAnAttackerNeverTriggersThorns) {
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EffectSet none;
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uint32_t rng = 77u;
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CombatStats player;
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player.armor = fullSet(Armor::Material::Diamond);
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enchantWholeSet(player.armor, EnchantKind::Thorns, 3);
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for (int tick = 0; tick < 100; ++tick) {
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player.health = 20.0f;
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player.alive = true;
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player.invulnerableTicks = 0;
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CombatResult burn = applyDamage(player, none, hitFor(DamageType::Cactus, 2.0f), rng);
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CHECK_NEAR(burn.thornsDamage, 0.0f, 0.001f);
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}
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}
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VF_TEST(fireResistanceMakesLavaAndFireTicksHarmless) {
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uint32_t rng = 6u;
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EffectSet fireproof;
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applyEffect(fireproof, makeEffect(EffectKind::FireResistance, 1, 400));
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CombatStats player;
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CombatResult lava = applyDamage(player, fireproof, hitFor(DamageType::Lava, 4.0f), rng);
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CHECK(!lava.applied);
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CHECK_NEAR(player.health, 20.0f, 0.001f);
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CombatResult drown = applyDamage(player, fireproof, hitFor(DamageType::Drowning, 2.0f), rng);
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CHECK(drown.applied);
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CHECK_NEAR(player.health, 18.0f, 0.001f);
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}
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VF_TEST(witherEffectRunsAPlayerDownThroughRepeatedCombatTicks) {
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CombatStats player;
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EffectSet effects;
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applyEffect(effects, makeEffect(EffectKind::Wither, 2, 2000));
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int tick = 0;
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for (; tick < 2000 && player.alive; ++tick) tickCombat(player, effects);
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CHECK(!player.alive);
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CHECK_NEAR(player.health, 0.0f, 0.001f);
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CHECK(tick < 500);
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}
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VF_TEST(damageTypeClassificationMatchesTheMitigationRules) {
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CHECK(bypassesArmor(DamageType::Void));
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CHECK(bypassesArmor(DamageType::Starve));
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CHECK(bypassesArmor(DamageType::Suffocation));
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CHECK(!bypassesArmor(DamageType::Explosion));
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CHECK(bypassesInvulnerability(DamageType::Void));
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CHECK(!bypassesInvulnerability(DamageType::Fire));
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CHECK(bypassesMitigation(DamageType::Void));
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CHECK(isFireDamage(DamageType::Lava));
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CHECK(isProjectileDamage(DamageType::Projectile));
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CHECK(environmentSource(DamageType::Fire).fiery);
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CHECK(!environmentSource(DamageType::Fall).fiery);
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CHECK(projectileSource(9, 3, {}, true).ownerId == 3);
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}
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