raze-gles/source/blood/src/aihand.cpp

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2019-09-19 22:42:45 +00:00
//-------------------------------------------------------------------------
/*
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 "compat.h"
#include "build.h"
#include "pragmas.h"
#include "mmulti.h"
#include "common_game.h"
#include "actor.h"
#include "ai.h"
#include "aihand.h"
#include "blood.h"
#include "db.h"
#include "dude.h"
#include "eventq.h"
#include "levels.h"
#include "player.h"
#include "seq.h"
#include "sfx.h"
#include "trig.h"
static void HandJumpSeqCallback(int, int);
static void thinkSearch(spritetype *, XSPRITE *);
static void thinkGoto(spritetype *, XSPRITE *);
static void thinkChase(spritetype *, XSPRITE *);
static int nJumpClient = seqRegisterClient(HandJumpSeqCallback);
AISTATE handIdle = { kAiStateIdle, 0, -1, 0, NULL, NULL, aiThinkTarget, NULL };
AISTATE hand13A3B4 = { kAiStateOther, 0, -1, 0, NULL, NULL, NULL, NULL };
AISTATE handSearch = { kAiStateMove, 6, -1, 600, NULL, aiMoveForward, thinkSearch, &handIdle };
AISTATE handChase = { kAiStateChase, 6, -1, 0, NULL, aiMoveForward, thinkChase, NULL };
AISTATE handRecoil = { kAiStateRecoil, 5, -1, 0, NULL, NULL, NULL, &handSearch };
AISTATE handGoto = { kAiStateMove, 6, -1, 1800, NULL, aiMoveForward, thinkGoto, &handIdle };
AISTATE handJump = { kAiStateChase, 7, nJumpClient, 120, NULL, NULL, NULL, &handChase };
static void HandJumpSeqCallback(int, int nXSprite)
{
XSPRITE *pXSprite = &xsprite[nXSprite];
int nSprite = pXSprite->reference;
spritetype *pSprite = &sprite[nSprite];
spritetype *pTarget = &sprite[pXSprite->target];
if (IsPlayerSprite(pTarget))
{
PLAYER *pPlayer = &gPlayer[pTarget->type-kDudePlayer1];
if (!pPlayer->at376)
{
pPlayer->at376 = 1;
actPostSprite(pSprite->index, kStatFree);
}
}
}
static void thinkSearch(spritetype *pSprite, XSPRITE *pXSprite)
{
aiChooseDirection(pSprite, pXSprite, pXSprite->goalAng);
aiThinkTarget(pSprite, pXSprite);
}
static void thinkGoto(spritetype *pSprite, XSPRITE *pXSprite)
{
dassert(pSprite->type >= kDudeBase && pSprite->type < kDudeMax);
DUDEINFO *pDudeInfo = &dudeInfo[pSprite->type - kDudeBase];
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 && klabs(pSprite->ang - nAngle) < pDudeInfo->periphery)
aiNewState(pSprite, pXSprite, &handSearch);
aiThinkTarget(pSprite, pXSprite);
}
static void thinkChase(spritetype *pSprite, XSPRITE *pXSprite)
{
if (pXSprite->target == -1)
{
aiNewState(pSprite, pXSprite, &handGoto);
return;
}
dassert(pSprite->type >= kDudeBase && pSprite->type < kDudeMax);
DUDEINFO *pDudeInfo = &dudeInfo[pSprite->type - kDudeBase];
dassert(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(pSprite, pXSprite, &handSearch);
return;
}
if (IsPlayerSprite(pTarget) && powerupCheck(&gPlayer[pTarget->type-kDudePlayer1], 13) > 0)
{
aiNewState(pSprite, pXSprite, &handSearch);
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 && klabs(nDeltaAngle) <= pDudeInfo->periphery)
{
aiSetTarget(pXSprite, pXSprite->target);
if (nDist < 0x233 && klabs(nDeltaAngle) < 85 && gGameOptions.nGameType == 0)
aiNewState(pSprite, pXSprite, &handJump);
return;
}
}
}
aiNewState(pSprite, pXSprite, &handGoto);
pXSprite->target = -1;
}