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

118 lines
4.1 KiB
C++

//-------------------------------------------------------------------------
/*
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!
#include "compat.h"
#include "build.h"
#include "blood.h"
BEGIN_BLD_NS
static void innocThinkSearch(DBloodActor *);
static void innocThinkGoto(DBloodActor *);
static void innocThinkChase(DBloodActor *);
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 };
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 };
static void innocThinkSearch(DBloodActor* actor)
{
auto pXSprite = &actor->x();
auto pSprite = &actor->s();
aiChooseDirection(pSprite, pXSprite, pXSprite->goalAng);
aiThinkTarget(actor);
}
static void innocThinkGoto(DBloodActor* actor)
{
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->x;
int dy = pXSprite->targetY-pSprite->y;
int nAngle = getangle(dx, dy);
int nDist = approxDist(dx, dy);
aiChooseDirection(pSprite, pXSprite, nAngle);
if (nDist < 512 && abs(pSprite->ang - nAngle) < pDudeInfo->periphery)
aiNewState(actor, &innocentSearch);
aiThinkTarget(actor);
}
static void innocThinkChase(DBloodActor* actor)
{
auto pXSprite = &actor->x();
auto pSprite = &actor->s();
if (pXSprite->target == -1)
{
aiNewState(actor, &innocentGoto);
return;
}
assert(pSprite->type >= kDudeBase && pSprite->type < kDudeMax);
DUDEINFO *pDudeInfo = getDudeInfo(pSprite->type);
assert(pXSprite->target >= 0 && pXSprite->target < kMaxSprites);
spritetype *pTarget = &sprite[pXSprite->target];
XSPRITE *pXTarget = &xsprite[pTarget->extra];
int dx = pTarget->x-pSprite->x;
int dy = pTarget->y-pSprite->y;
aiChooseDirection(pSprite, pXSprite, getangle(dx, dy));
if (pXTarget->health == 0)
{
aiNewState(actor, &innocentSearch);
return;
}
if (IsPlayerSprite(pTarget))
{
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(pTarget->x, pTarget->y, pTarget->z, pTarget->sectnum, pSprite->x, pSprite->y, pSprite->z - height, pSprite->sectnum))
{
if (nDist < pDudeInfo->seeDist && abs(nDeltaAngle) <= pDudeInfo->periphery)
{
aiSetTarget(pXSprite, pXSprite->target);
if (nDist < 0x666 && abs(nDeltaAngle) < 85)
aiNewState(actor, &innocentIdle);
return;
}
}
}
aiPlay3DSound(pSprite, 7000+Random(6), AI_SFX_PRIORITY_1, -1);
aiNewState(actor, &innocentGoto);
pXSprite->target = -1;
}
END_BLD_NS