Function TRexControl

TombEngine/Objects/TR3/Entity/tr3_trex.cpp:77–191

	};

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

		auto* item = &g_Level.Items[itemNumber];
		auto* creature = GetCreatureInfo(item);

		short headingAngle = 0;
		short headYRot = 0;

		if (item->HitPoints <= 0)
		{
			if (item->Animation.ActiveState == TREX_STATE_IDLE)
			{
				item->Animation.TargetState = TREX_STATE_DEATH;
			}
			else
			{
				item->Animation.TargetState = TREX_STATE_IDLE;
			}
		}
		else
		{
			AI_INFO ai;
			CreatureAIInfo(item, &ai);

			if (ai.ahead)
				headYRot = ai.angle;

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

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

			if (item->TouchBits.TestAny())
				DoDamage(LaraItem, (item->Animation.ActiveState == TREX_STATE_RUN_FORWARD) ? TREX_RUN_CONTACT_DAMAGE : TREX_CONTACT_DAMAGE);

			creature->Flags = (creature->Mood != MoodType::Escape && !ai.ahead && ai.enemyFacing > -FRONT_ARC && ai.enemyFacing < FRONT_ARC);

			if (ai.distance > pow(1500, 2) &&
				ai.distance < pow(BLOCK(4), 2) &&
				ai.bite && !creature->Flags)
			{
				creature->Flags = 1;
			}

			switch (item->Animation.ActiveState)
			{
			case TREX_STATE_IDLE:
				if (item->Animation.RequiredState != NO_VALUE)
					item->Animation.TargetState = item->Animation.RequiredState;
				else if (ai.distance < pow(1500, 2) && ai.bite)
					item->Animation.TargetState = TREX_STATE_ATTACK;
				else if (creature->Mood == MoodType::Bored || creature->Flags)
					item->Animation.TargetState = TREX_STATE_WALK_FORWARD;
				else
					item->Animation.TargetState = TREX_STATE_RUN_FORWARD;