// TODO: Consider location as well as direction when both given.
void KnockbackComponent::HandleDamage(float amount, gentity_t* source, Util::optional<Vec3> location,
Util::optional<Vec3> direction, int flags, meansOfDeath_t meansOfDeath) {
if (!(flags & DAMAGE_KNOCKBACK)) return;
if (amount <= 0.0f) return;
if (!direction) {
knockbackLogger.Warn("Received damage message with knockback flag set but no direction.");
return;
}
if (Math::Length(direction.value()) == 0.0f) {
knockbackLogger.Warn("Attempt to do knockback with null vector direction.");
return;
}
// TODO: Remove dependency on client.
gclient_t *client = entity.oldEnt->client;
assert(client);
// Check for immunity.
if (client->noclip) return;
if (client->sess.spectatorState != SPECTATOR_NOT) return;
float mass = (float)BG_Class(client->ps.stats[ STAT_CLASS ])->mass;
if (mass <= 0.0f) {
knockbackLogger.Warn("Attempt to do knockback against target with no mass, assuming normal mass.");
mass = KNOCKBACK_NORMAL_MASS;
}
float massMod = Math::Clamp(KNOCKBACK_NORMAL_MASS / mass, KNOCKBACK_MIN_MASSMOD, KNOCKBACK_MAX_MASSMOD);
float strength = amount * DAMAGE_TO_KNOCKBACK * massMod;
// Change client velocity.
Vec3 clientVelocity = Vec3::Load(client->ps.velocity);
clientVelocity += Math::Normalize(direction.value()) * strength;
clientVelocity.Store(client->ps.velocity);
// Set pmove timer so that the client can't cancel out the movement immediately.
if (!client->ps.pm_time) {
client->ps.pm_time = KNOCKBACK_PMOVE_TIME;
client->ps.pm_flags |= PMF_TIME_KNOCKBACK;
}
knockbackLogger.Debug("Knockback: client: %i, strength: %.1f (massMod: %.1f).",
entity.oldEnt->s.number, strength, massMod);
}
// TODO: Use new vector math library for all calculations.
void ArmorComponent::HandleApplyDamageModifier(float& damage, Util::optional<Vec3> location,
Util::optional<Vec3> direction, int flags, meansOfDeath_t meansOfDeath) {
vec3_t origin, bulletPath, bulletAngle, locationRelativeToFloor, floor, normal;
// TODO: Remove dependency on client.
assert(entity.oldEnt->client);
// Use non-regional damage where appropriate.
if (flags & DAMAGE_NO_LOCDAMAGE || !location) {
// TODO: Move G_GetNonLocDamageMod to ArmorComponent.
damage *= GetNonLocationalDamageMod();
return;
}
// Get hit location relative to the floor beneath.
if (g_unlagged.integer && entity.oldEnt->client->unlaggedCalc.used) {
VectorCopy(entity.oldEnt->client->unlaggedCalc.origin, origin);
} else {
VectorCopy(entity.oldEnt->r.currentOrigin, origin);
}
BG_GetClientNormal(&entity.oldEnt->client->ps, normal);
VectorMA(origin, entity.oldEnt->r.mins[2], normal, floor);
VectorSubtract(location.value().Data(), floor, locationRelativeToFloor);
// Get fraction of height where the hit landed.
float height = entity.oldEnt->r.maxs[2] - entity.oldEnt->r.mins[2];
if (!height) height = 1.0f;
float hitRatio = Math::Clamp(DotProduct(normal, locationRelativeToFloor) / VectorLength(normal),
0.0f, height) / height;
// Get the yaw of the attack relative to the target's view yaw
VectorSubtract(location.value().Data(), origin, bulletPath);
vectoangles(bulletPath, bulletAngle);
int hitRotation = AngleNormalize360(entity.oldEnt->client->ps.viewangles[YAW] - bulletAngle[YAW]);
// Use regional modifier.
// TODO: Move G_GetPointDamageMod to ArmorComponent.
damage *= GetLocationalDamageMod(hitRotation, hitRatio);
}
/**
* Constructs a new impl based on the locale parameters.
*/
impl(const std::string& language,
const util::optional<std::string>& country)
{
icu::Locale locale(language.c_str(),
country ? country->c_str() : nullptr);
if (locale.isBogus())
throw std::runtime_error{"failed to create locale"};
auto status = U_ZERO_ERROR;
sentence_iter_.reset(
icu::BreakIterator::createSentenceInstance(locale, status));
word_iter_.reset(
icu::BreakIterator::createWordInstance(locale, status));
if (!U_SUCCESS(status))
throw std::runtime_error{"failed to create segmenter"};
}
void HealthComponent::HandleDamage(float amount, gentity_t* source, Util::optional<Vec3> location,
Util::optional<Vec3> direction, int flags, meansOfDeath_t meansOfDeath) {
if (health <= 0.0f) return;
if (amount <= 0.0f) return;
gclient_t *client = entity.oldEnt->client;
// Check for immunity.
if (entity.oldEnt->flags & FL_GODMODE) return;
if (client) {
if (client->noclip) return;
if (client->sess.spectatorState != SPECTATOR_NOT) return;
}
// Set source to world if missing.
if (!source) source = &g_entities[ENTITYNUM_WORLD];
// Don't handle ET_MOVER w/o die or pain function.
// TODO: Handle mover special casing in a dedicated component.
if (entity.oldEnt->s.eType == entityType_t::ET_MOVER && !(entity.oldEnt->die || entity.oldEnt->pain)) {
// Special case for ET_MOVER with act function in initial position.
if ((entity.oldEnt->moverState == MOVER_POS1 || entity.oldEnt->moverState == ROTATOR_POS1)
&& entity.oldEnt->act) {
entity.oldEnt->act(entity.oldEnt, source, source);
}
return;
}
// Check for protection.
if (!(flags & DAMAGE_NO_PROTECTION)) {
// Check for protection from friendly damage.
if (entity.oldEnt != source && G_OnSameTeam(entity.oldEnt, source)) {
// Check if friendly fire has been disabled.
if (!g_friendlyFire.integer) return;
// Never do friendly damage on movement attacks.
switch (meansOfDeath) {
case MOD_LEVEL3_POUNCE:
case MOD_LEVEL4_TRAMPLE:
return;
default:
break;
}
// If dretchpunt is enabled and this is a dretch, do dretchpunt instead of damage.
// TODO: Add a message for pushing.
if (g_dretchPunt.integer && client && client->ps.stats[STAT_CLASS] == PCL_ALIEN_LEVEL0)
{
vec3_t dir, push;
VectorSubtract(entity.oldEnt->r.currentOrigin, source->r.currentOrigin, dir);
VectorNormalizeFast(dir);
VectorScale(dir, (amount * 10.0f), push);
push[ 2 ] = 64.0f;
VectorAdd( client->ps.velocity, push, client->ps.velocity );
return;
}
}
// Check for protection from friendly buildable damage. Never protect from building actions.
// TODO: Use DAMAGE_NO_PROTECTION flag instead of listing means of death here.
if (entity.oldEnt->s.eType == entityType_t::ET_BUILDABLE && source->client &&
meansOfDeath != MOD_DECONSTRUCT && meansOfDeath != MOD_SUICIDE &&
meansOfDeath != MOD_REPLACE) {
if (G_OnSameTeam(entity.oldEnt, source) && !g_friendlyBuildableFire.integer) {
return;
}
}
}
float take = amount;
// Apply damage modifiers.
if (!(flags & DAMAGE_PURE)) {
entity.ApplyDamageModifier(take, location, direction, flags, meansOfDeath);
}
// Update combat timers.
// TODO: Add a message to update combat timers.
if (client && source->client && entity.oldEnt != source) {
client->lastCombatTime = entity.oldEnt->client->lastCombatTime = level.time;
}
if (client) {
// Save damage w/o armor modifier.
client->damage_received += (int)(amount + 0.5f);
// Save damage direction.
if (direction) {
VectorCopy(direction.value().Data(), client->damage_from);
client->damage_fromWorld = false;
} else {
VectorCopy(entity.oldEnt->r.currentOrigin, client->damage_from);
client->damage_fromWorld = true;
}
// Drain jetpack fuel.
// TODO: Have another component handle jetpack fuel drain.
client->ps.stats[STAT_FUEL] = std::max(0, client->ps.stats[STAT_FUEL] -
(int)(amount + 0.5f) * JETPACK_FUEL_PER_DMG);
// If boosted poison every attack.
// TODO: Add a poison message and a PoisonableComponent.
if (source->client && (source->client->ps.stats[STAT_STATE] & SS_BOOSTED) &&
client->pers.team == TEAM_HUMANS && client->poisonImmunityTime < level.time) {
switch (meansOfDeath) {
case MOD_POISON:
case MOD_LEVEL2_ZAP:
break;
default:
client->ps.stats[STAT_STATE] |= SS_POISONED;
client->lastPoisonTime = level.time;
client->lastPoisonClient = source;
break;
}
}
}
healthLogger.Notice("Taking damage: %3.1f (%3.1f → %3.1f)", take, health, health - take);
// Do the damage.
health -= take;
// Update team overlay info.
if (client) client->pers.infoChangeTime = level.time;
// TODO: Move lastDamageTime to HealthComponent.
entity.oldEnt->lastDamageTime = level.time;
// HACK: gentity_t.nextRegenTime only affects alien clients.
// TODO: Catch damage message in a new RegenerationComponent.
entity.oldEnt->nextRegenTime = level.time + ALIEN_CLIENT_REGEN_WAIT;
// Handle non-self damage.
if (entity.oldEnt != source) {
float loss = take;
if (health < 0.0f) loss += health;
// TODO: Use ClientComponent.
if (source->client) {
// Add to the attacker's account on the target.
// TODO: Move damage account array to HealthComponent.
entity.oldEnt->credits[source->client->ps.clientNum].value += loss;
entity.oldEnt->credits[source->client->ps.clientNum].time = level.time;
entity.oldEnt->credits[source->client->ps.clientNum].team = (team_t)source->client->pers.team;
}
}
// Handle death.
// TODO: Send a Die/Pain message and handle details where appropriate.
if (health <= 0) {
healthLogger.Notice("Dying with %.1f health.", health);
// Disable knockback.
if (client) entity.oldEnt->flags |= FL_NO_KNOCKBACK;
// Call legacy die function.
if (entity.oldEnt->die) entity.oldEnt->die(entity.oldEnt, source, source, meansOfDeath);
// Send die message.
entity.Die(source, meansOfDeath);
// Trigger ON_DIE event.
if(!client) G_EventFireEntity(entity.oldEnt, source, ON_DIE);
} else if (entity.oldEnt->pain) {
entity.oldEnt->pain(entity.oldEnt, source, (int)std::ceil(take));
}
if (entity.oldEnt != source && source->client) {
bool lethal = (health <= 0);
CombatFeedback::HitNotify(source, entity.oldEnt, location, take, meansOfDeath, lethal);
}
}