Function LionControl

TombEngine/Objects/TR5/Entity/tr5_lion.cpp:80–247

	}

	void LionControl(short itemNumber)
	{
		if (!CreatureActive(itemNumber))
			return;

		auto* item = &g_Level.Items[itemNumber];
		auto* object = &Objects[item->ObjectNumber];
		auto* creature = GetCreatureInfo(item);

		short headingAngle = 0;
		short tiltAngle = 0;
		short joint0 = 0;
		short joint1 = 0;

		bool isTargetAhead = false;

		if (item->HitPoints <= 0)
		{
			item->HitPoints = 0;

			if (item->Animation.ActiveState != LION_STATE_DEATH)
				SetAnimation(item, LionDeathAnims[Random::GenerateInt(0, (int)LionDeathAnims.size() - 1)]);
		}
		else
		{
			AI_INFO ai;
			CreatureAIInfo(item, &ai);

			// NOTE: Because the lion is quite big, AI.ahead doesn't calculate the lion's head angle properly.
			// Calculate manually like with tr1_giant_mutant.

			auto forwardVector = Vector3(
				cos(item->Pose.Orientation.x) * sin(item->Pose.Orientation.y),
				-sin(item->Pose.Orientation.x),
				cos(item->Pose.Orientation.x) * cos(item->Pose.Orientation.y));
			forwardVector.Normalize();
			forwardVector *= LION_HEAD_DISTANCE;

			short headAngle = (short)phd_atan(
				creature->Target.z - item->Pose.Position.z + forwardVector.z,
				creature->Target.x - item->Pose.Position.x + forwardVector.x) -
				item->Pose.Orientation.y;
			isTargetAhead = (headAngle > -FRONT_ARC && headAngle < FRONT_ARC);

			if (isTargetAhead)
				joint1 = headAngle;

			GetCreatureMood(item, &ai, true);
			CreatureMood(item, &ai, true);

			headingAngle = CreatureTurn(item, creature->MaxTurn);
			joint0 = headingAngle * -16;

			switch (item->Animation.ActiveState)
			{
			case LION_STATE_IDLE:
				creature->MaxTurn = 0;
				creature->Flags = 0;