Method getAccuracy

game/state/shared/aequipment.cpp:120–252

*/

int AEquipment::getAccuracy(BodyState bodyState, MovementState movementState,
                            WeaponAimingMode fireMode, bool thrown)
{
	float accuracy = 0.0f;
	auto agent = ownerAgent ? ownerAgent : (ownerUnit ? ownerUnit->agent : nullptr);
	if (agent)
	{
		accuracy = agent->modified_stats.accuracy;
	}

	if (thrown)
	{
		return (int)accuracy;
		// Throwing accuracy is unaffected by movement, stance or mode of fire
	}

	StateRef<AEquipmentType> payload = getPayloadType();
	if (!payload)
	{
		payload = *type->ammo_types.begin();
	}

	if (this->type->type != AEquipmentType::Type::Weapon)
	{
		LogError("getAccuracy (non-thrown) called on non-weapon");
		return 0;
	}

	// Accuracy calculation algorithm

	// Take agent and weapon's accuracy

	auto agentAccuracy = accuracy;
	auto payloadAccuracy =
	    type->type == AEquipmentType::Type::Weapon ? (float)payload->accuracy : 100.0f;

	// Calculate dispersion, the inverse of accuracy, and scale values to 0-1 for simplicity

	float agentDispersion = 1.0f - agentAccuracy / 100.0f;
	float weaponDispersion = 1.0f - payloadAccuracy / 100.0f;

	// Weapon dispersion is half as important
	weaponDispersion *= 0.5f;

	// Firing mode: Auto increases dispersion and Aimed decreases by factors of 2
	agentDispersion *= 0.5f * (float)fireMode;

	// Moving affects dispersion
	switch (movementState)
	{
		case MovementState::None:
			agentDispersion *= 0.8f;
			break;
		case MovementState::Running:
			agentDispersion *= 1.25f;
			break;
		default:
			agentDispersion *= 0.95f;