Function LaraTargetInfo

TombEngine/Game/Lara/lara_fire.cpp:1129–1196

}

void LaraTargetInfo(ItemInfo& laraItem, const WeaponInfo& weaponInfo)
{
	auto& player = *GetLaraInfo(&laraItem);

	if (player.TargetEntity == nullptr)
	{
		player.RightArm.AimDelay = player.LeftArm.AimDelay = 0;
		player.RightArm.Locked = player.LeftArm.Locked = false;
		player.TargetArmOrient = EulerAngles::Identity;
		return;
	}

	auto origin1 = GameVector(laraItem.Pose.Position.x, GetJointPosition(&laraItem, LM_RHAND).y, laraItem.Pose.Position.z, laraItem.RoomNumber);
	auto origin2 = GameVector(laraItem.Pose.Position.x, GetJointPosition(&laraItem, LM_HEAD).y - LARA_HEADROOM, laraItem.Pose.Position.z, laraItem.RoomNumber);
	auto target = GetTargetPoint(*player.TargetEntity);

	auto orient = Geometry::GetOrientToPoint(origin1.ToVector3(), target.ToVector3()) - laraItem.Pose.Orientation;

	// Do two-pass LOS test to make sure enemy is visible from both gun and head positions.
	if (LOS(&origin1, &target) && LOS(&origin2, &target))
		player.RightArm.AimDelay = player.LeftArm.AimDelay++;
	else
		player.RightArm.AimDelay = player.LeftArm.AimDelay = 0;

	// Filter out targets that have been in sight for less than 3 frames to avoid stuttering.
	if (player.RightArm.AimDelay > 3 || player.LeftArm.AimDelay > 3)
	{
		if (orient.x >= weaponInfo.LockOrientConstraint.first.x &&
			orient.y >= weaponInfo.LockOrientConstraint.first.y &&
			orient.x <= weaponInfo.LockOrientConstraint.second.x &&
			orient.y <= weaponInfo.LockOrientConstraint.second.y)
		{
			player.RightArm.Locked = true;
			player.LeftArm.Locked = true;
		}
		else
		{
			if (player.LeftArm.Locked)
			{
				if (orient.x < weaponInfo.LeftOrientConstraint.first.x ||
					orient.y < weaponInfo.LeftOrientConstraint.first.y ||
					orient.x > weaponInfo.LeftOrientConstraint.second.x ||
					orient.y > weaponInfo.LeftOrientConstraint.second.y)
				{
					player.LeftArm.Locked = false;
				}
			}

			if (player.RightArm.Locked)
			{
				if (orient.x < weaponInfo.RightOrientConstraint.first.x ||
					orient.y < weaponInfo.RightOrientConstraint.first.y ||
					orient.x > weaponInfo.RightOrientConstraint.second.x ||
					orient.y > weaponInfo.RightOrientConstraint.second.y)
				{
					player.RightArm.Locked = false;
				}
			}