Method updateFiring

game/state/battle/battleunit.cpp:3513–3683

}

void BattleUnit::updateFiring(GameState &state, sp<AEquipment> &weaponLeft,
                              sp<AEquipment> &weaponRight, Vec3<float> &targetPosition)
{
	bool realTime = state.current_battle->mode == Battle::Mode::RealTime;
	Vec3<float> muzzleLocation = getMuzzleLocation();

	// Should we start aiming?
	if (canHandStateChange(HandState::Aiming))
	{
		beginHandStateChange(HandState::Aiming);
	}

	// Should we begin fire delay countdown?
	if (target_hand_state == HandState::Aiming)
	{
		if (weaponRight && !weaponRight->isFiring())
		{
			weaponRight->startFiring(fire_aiming_mode, !realTime);
		}
		if (weaponLeft && !weaponLeft->isFiring())
		{
			weaponLeft->startFiring(fire_aiming_mode, !realTime);
		}
	}

	// Is a gun ready to fire now?
	bool weaponFired = false;
	if (firing_animation_ticks_remaining == 0 && target_hand_state == HandState::Aiming)
	{
		sp<AEquipment> firingWeapon = nullptr;
		if (weaponRight && weaponRight->readyToFire)
		{
			firingWeapon = weaponRight;
			weaponRight = nullptr;
		}
		else if (weaponLeft && weaponLeft->readyToFire)
		{
			firingWeapon = weaponLeft;
			weaponLeft = nullptr;
		}
		// Weapon ready to fire: check if facing the right way
		if (firingWeapon)
		{
			auto targetPosAdjusted = targetPosition;
			// Lead the target
			if (targetUnit)
			{
				auto projectileVelocity =
				    firingWeapon->getPayloadType()->speed * PROJECTILE_VELOCITY_MULTIPLIER;
				// Target's velocity (if falling/jumping)
				Vec3<float> targetVelocity = targetUnit->getVelocity();
				auto distanceVoxels =
				    glm::length((targetPosition - muzzleLocation) * VELOCITY_SCALE_BATTLE);
				float timeToImpact = distanceVoxels * (float)TICK_SCALE / projectileVelocity;
				targetPosAdjusted += Collision::getLeadingOffset(targetPosition - muzzleLocation,
				                                                 projectileVelocity * timeToImpact,
				                                                 targetVelocity * timeToImpact);
			}