raze/source/games/blood/src/aiinnoc.cpp

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//-------------------------------------------------------------------------
/*
Copyright (C) 2010-2019 EDuke32 developers and contributors
Copyright (C) 2019 Nuke.YKT
This file is part of NBlood.
NBlood is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
//-------------------------------------------------------------------------
#include "ns.h" // Must come before everything else!
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#include "build.h"
#include "blood.h"
BEGIN_BLD_NS
static void innocThinkSearch(DBloodActor*);
static void innocThinkGoto(DBloodActor*);
static void innocThinkChase(DBloodActor*);
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AISTATE innocentIdle = { kAiStateIdle, 0, -1, 0, NULL, NULL, aiThinkTarget, NULL };
AISTATE innocentSearch = { kAiStateSearch, 6, -1, 1800, NULL, aiMoveForward, innocThinkSearch, &innocentIdle };
AISTATE innocentChase = { kAiStateChase, 6, -1, 0, NULL, aiMoveForward, innocThinkChase, NULL };
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AISTATE innocentRecoil = { kAiStateRecoil, 5, -1, 0, NULL, NULL, NULL, &innocentChase };
AISTATE innocentTeslaRecoil = { kAiStateRecoil, 4, -1, 0, NULL, NULL, NULL, &innocentChase };
AISTATE innocentGoto = { kAiStateMove, 6, -1, 600, NULL, aiMoveForward, innocThinkGoto, &innocentIdle };
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static void innocThinkSearch(DBloodActor* actor)
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{
auto pXSprite = &actor->x();
auto pSprite = &actor->s();
aiChooseDirection(actor, pXSprite->goalAng);
aiThinkTarget(actor);
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}
static void innocThinkGoto(DBloodActor* actor)
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{
auto pXSprite = &actor->x();
auto pSprite = &actor->s();
assert(pSprite->type >= kDudeBase && pSprite->type < kDudeMax);
DUDEINFO* pDudeInfo = getDudeInfo(pSprite->type);
int dx = pXSprite->targetX - pSprite->pos.X;
int dy = pXSprite->targetY - pSprite->pos.Y;
int nAngle = getangle(dx, dy);
int nDist = approxDist(dx, dy);
aiChooseDirection(actor, nAngle);
if (nDist < 512 && abs(pSprite->ang - nAngle) < pDudeInfo->periphery)
aiNewState(actor, &innocentSearch);
aiThinkTarget(actor);
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}
static void innocThinkChase(DBloodActor* actor)
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{
auto pXSprite = &actor->x();
auto pSprite = &actor->s();
if (actor->GetTarget() == nullptr)
{
aiNewState(actor, &innocentGoto);
return;
}
assert(pSprite->type >= kDudeBase && pSprite->type < kDudeMax);
DUDEINFO* pDudeInfo = getDudeInfo(pSprite->type);
if (!actor->ValidateTarget(__FUNCTION__)) return;
auto target = actor->GetTarget();
XSPRITE* pXTarget = &actor->GetTarget()->x();
int dx = target->spr.pos.X - pSprite->pos.X;
int dy = target->spr.pos.Y - pSprite->pos.Y;
aiChooseDirection(actor, getangle(dx, dy));
if (pXTarget->health == 0)
{
aiNewState(actor, &innocentSearch);
return;
}
if (target->IsPlayerActor())
{
aiNewState(actor, &innocentSearch);
return;
}
int nDist = approxDist(dx, dy);
if (nDist <= pDudeInfo->seeDist)
{
int nDeltaAngle = ((getangle(dx, dy) + 1024 - pSprite->ang) & 2047) - 1024;
int height = (pDudeInfo->eyeHeight * pSprite->yrepeat) << 2;
if (cansee(target->spr.pos.X, target->spr.pos.Y, target->spr.pos.Z, target->spr.sector(), pSprite->pos.X, pSprite->pos.Y, pSprite->pos.Z - height, pSprite->sector()))
{
if (nDist < pDudeInfo->seeDist && abs(nDeltaAngle) <= pDudeInfo->periphery)
{
aiSetTarget(actor, actor->GetTarget());
if (nDist < 0x666 && abs(nDeltaAngle) < 85)
aiNewState(actor, &innocentIdle);
return;
}
}
}
aiPlay3DSound(actor, 7000 + Random(6), AI_SFX_PRIORITY_1, -1);
aiNewState(actor, &innocentGoto);
actor->SetTarget(nullptr);
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}
END_BLD_NS