TombEngine/TR5Main/Objects/TR4/tr4_wildboard.cpp

#include "../newobjects.h"
#include "../../Game/Box.h"
#include "../../Game/items.h"
#include "../../Game/effects.h"

BITE_INFO wildboardBiteInfo = { 0, 0, 0, 14 };

void InitialiseWildBoar(short itemNum)
{
	ITEM_INFO* item = &Items[itemNum];

	ClearItem(itemNum);

	item->animNumber = Objects[ID_WILD_BOAR].animIndex + 6;
	item->frameNumber = Anims[item->animNumber].frameBase;
	item->goalAnimState = 1;
	item->currentAnimState = 1;
}

void WildBoarControl(short itemNum)
{
	if (!CreatureActive(itemNum))
		return;

	ITEM_INFO* item = &Items[itemNum];
	CREATURE_INFO* creature = (CREATURE_INFO*)item->data;
	short angle = 0;
	short head = 0;
	short neck = 0;
	short tilt = 0;
	short joint0 = 0;
	short joint1 = 0;
	short joint2 = 0;
	short joint3 = 0;

	if (item->hitPoints > 0)
	{
		int dx = LaraItem->pos.xPos - item->pos.xPos;
		int dz = LaraItem->pos.zPos - item->pos.zPos;
		int laraDistance = dx * dx + dz * dz;

		if (item->aiBits & GUARD)
		{
			GetAITarget(creature);
		}
		else
		{
			creature->enemy = LaraItem;

			CREATURE_INFO* baddie = &BaddieSlots[0];
			CREATURE_INFO* found = &BaddieSlots[0];
			int minDistance = 0x7FFFFFFF;

			for (int i = 0; i < NUM_SLOTS; i++, baddie++)
			{
				if (baddie->itemNum == NO_ITEM || baddie->itemNum == itemNum)
					continue;

				ITEM_INFO* target = &Items[baddie->itemNum];
				if (target->objectNumber != ID_WILD_BOAR)
				{
					int dx2 = target->pos.xPos - item->pos.xPos;
					int dz2 = target->pos.zPos - item->pos.zPos;
					int distance = dx2 * dx2 + dz2 * dz2;

					if (distance < minDistance && distance < laraDistance)
					{
						creature->enemy = target;
						minDistance = distance;
					}
				}
			}
		}

		AI_INFO info;
		CreatureAIInfo(item, &info);

		GetCreatureMood(item, &info, VIOLENT);
		if (item->flags)
			creature->mood = ESCAPE_MOOD;
		CreatureMood(item, &info, VIOLENT);

		angle = CreatureTurn(item, creature->maximumTurn);

		if (info.ahead)
		{
			joint1 = info.angle >> 1;
			joint3 = info.angle >> 1;
		}

		switch (item->currentAnimState)
		{
		case 1:
			creature->maximumTurn = 0;
			if (info.ahead && info.distance || item->flags)
			{
				item->goalAnimState = 2;
			}
			else if (GetRandomControl() & 0x7F)
			{
				joint1 = AIGuard(creature) >> 1;
				joint3 = joint1;
			}
			else
			{
				item->goalAnimState = 3;
			}
			break;

		case 3:
			creature->maximumTurn = 0;
			if (info.ahead && info.distance)
			{
				item->goalAnimState = 1;
			}
			else if (!(GetRandomControl() & 0x7F))
			{
				item->goalAnimState = 1;
			}
			break;

		case 2:
			if (info.distance >= 0x400000)
			{
				creature->maximumTurn = 1092;
				item->flags = 0;
			}
			else
			{
				creature->maximumTurn = 546;
				joint0 = -info.distance;
				joint2 = -info.distance;
			}
			if (!item->flags && (info.distance < 0x10000 && info.bite))
			{
				item->goalAnimState = 4;
				if (creature->enemy == LaraItem)
				{
					LaraItem->hitPoints -= 30;
					LaraItem->hitStatus = true;
				}

				CreatureEffect2(item, &wildboardBiteInfo, 3, item->pos.yRot, DoBloodSplat);
				item->flags = 1;
			}
			break;

		case 4:
			creature->maximumTurn = 0;
			break;

		}
	}
	else
	{
		item->hitPoints = 0;
		if (item->currentAnimState != 5)
		{
			item->animNumber = Objects[ID_WILD_BOAR].animIndex + 5;
			item->currentAnimState = 5;
			item->frameNumber = Anims[item->animNumber].frameBase;
		}
	}

	CreatureJoint(item, 0, joint0);
	CreatureJoint(item, 1, joint1);
	CreatureJoint(item, 2, joint2);
	CreatureJoint(item, 3, joint3);
	CreatureAnimation(itemNum, angle, 0);
}