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

//-------------------------------------------------------------------------
/*
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 burnThinkSearch(DBloodActor*);
static void burnThinkGoto(DBloodActor*);
static void burnThinkChase(DBloodActor*);

AISTATE cultistBurnIdle = { kAiStateIdle, 3, -1, 0, NULL, NULL, aiThinkTarget, NULL };
AISTATE cultistBurnChase = { kAiStateChase, 3, -1, 0, NULL, aiMoveForward, burnThinkChase, NULL };
AISTATE cultistBurnGoto = { kAiStateMove, 3, -1, 3600, NULL, aiMoveForward, burnThinkGoto, &cultistBurnSearch };
AISTATE cultistBurnSearch = { kAiStateSearch, 3, -1, 3600, NULL, aiMoveForward, burnThinkSearch, &cultistBurnSearch };
AISTATE cultistBurnAttack = { kAiStateChase, 3, nBurnClient, 120, NULL, NULL, NULL, &cultistBurnChase };

AISTATE zombieABurnChase = { kAiStateChase, 3, -1, 0, NULL, aiMoveForward, burnThinkChase, NULL };
AISTATE zombieABurnGoto = { kAiStateMove, 3, -1, 3600, NULL, aiMoveForward, burnThinkGoto, &zombieABurnSearch };
AISTATE zombieABurnSearch = { kAiStateSearch, 3, -1, 3600, NULL, aiMoveForward, burnThinkSearch, NULL };
AISTATE zombieABurnAttack = { kAiStateChase, 3, nBurnClient, 120, NULL, NULL, NULL, &zombieABurnChase };

AISTATE zombieFBurnChase = { kAiStateChase, 3, -1, 0, NULL, aiMoveForward, burnThinkChase, NULL };
AISTATE zombieFBurnGoto = { kAiStateMove, 3, -1, 3600, NULL, aiMoveForward, burnThinkGoto, &zombieFBurnSearch };
AISTATE zombieFBurnSearch = { kAiStateSearch, 3, -1, 3600, NULL, aiMoveForward, burnThinkSearch, NULL };
AISTATE zombieFBurnAttack = { kAiStateChase, 3, nBurnClient, 120, NULL, NULL, NULL, &zombieFBurnChase };

AISTATE innocentBurnChase = { kAiStateChase, 3, -1, 0, NULL, aiMoveForward, burnThinkChase, NULL };
AISTATE innocentBurnGoto = { kAiStateMove, 3, -1, 3600, NULL, aiMoveForward, burnThinkGoto, &zombieFBurnSearch };
AISTATE innocentBurnSearch = { kAiStateSearch, 3, -1, 3600, NULL, aiMoveForward, burnThinkSearch, NULL };
AISTATE innocentBurnAttack = { kAiStateChase, 3, nBurnClient, 120, NULL, NULL, NULL, &zombieFBurnChase };

AISTATE beastBurnChase = { kAiStateChase, 3, -1, 0, NULL, aiMoveForward, burnThinkChase, NULL };
AISTATE beastBurnGoto = { kAiStateMove, 3, -1, 3600, NULL, aiMoveForward, burnThinkGoto, &beastBurnSearch };
AISTATE beastBurnSearch = { kAiStateSearch, 3, -1, 3600, NULL, aiMoveForward, burnThinkSearch, &beastBurnSearch };
AISTATE beastBurnAttack = { kAiStateChase, 3, nBurnClient, 120, NULL, NULL, NULL, &beastBurnChase };

AISTATE tinycalebBurnChase = { kAiStateChase, 3, -1, 0, NULL, aiMoveForward, burnThinkChase, NULL };
AISTATE tinycalebBurnGoto = { kAiStateMove, 3, -1, 3600, NULL, aiMoveForward, burnThinkGoto, &tinycalebBurnSearch };
AISTATE tinycalebBurnSearch = { kAiStateSearch, 3, -1, 3600, NULL, aiMoveForward, burnThinkSearch, &tinycalebBurnSearch };
AISTATE tinycalebBurnAttack = { kAiStateChase, 3, nBurnClient, 120, NULL, NULL, NULL, &tinycalebBurnChase };

AISTATE genDudeBurnIdle = { kAiStateIdle, 3, -1, 0, NULL, NULL, aiThinkTarget, NULL };
AISTATE genDudeBurnChase = { kAiStateChase, 3, -1, 0, NULL, aiMoveForward, burnThinkChase, NULL };
AISTATE genDudeBurnGoto = { kAiStateMove, 3, -1, 3600, NULL, aiMoveForward, burnThinkGoto, &genDudeBurnSearch };
AISTATE genDudeBurnSearch = { kAiStateSearch, 3, -1, 3600, NULL, aiMoveForward, burnThinkSearch, &genDudeBurnSearch };
AISTATE genDudeBurnAttack = { kAiStateChase, 3, nBurnClient, 120, NULL, NULL, NULL, &genDudeBurnChase };

void BurnSeqCallback(int, DBloodActor*)
{
}

static void burnThinkSearch(DBloodActor* actor)
{
    auto pXSprite = &actor->x();
    auto pSprite = &actor->s();
    aiChooseDirection(actor,pXSprite->goalAng);
    aiThinkTarget(actor);
}

static void burnThinkGoto(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(actor,nAngle);
    if (nDist < 512 && abs(pSprite->ang - nAngle) < pDudeInfo->periphery)
    {
        switch (pSprite->type)
        {
        case kDudeBurningCultist:
            aiNewState(actor, &cultistBurnSearch);
            break;
        case kDudeBurningZombieAxe:
            aiNewState(actor, &zombieABurnSearch);
            break;
        case kDudeBurningZombieButcher:
            aiNewState(actor, &zombieFBurnSearch);
            break;
        case kDudeBurningInnocent:
            aiNewState(actor, &innocentBurnSearch);
            break;
        case kDudeBurningBeast:
            aiNewState(actor, &beastBurnSearch);
            break;
        case kDudeBurningTinyCaleb:
            aiNewState(actor, &tinycalebBurnSearch);
            break;
        #ifdef NOONE_EXTENSIONS
        case kDudeModernCustomBurning:
            aiNewState(actor, &genDudeBurnSearch);
            break;
        #endif
        }
    }
    aiThinkTarget(actor);
}

static void burnThinkChase(DBloodActor* actor)
{
    auto pXSprite = &actor->x();
    auto pSprite = &actor->s();
    if (pXSprite->target == -1)
    {
        switch (pSprite->type)
        {
        case kDudeBurningCultist:
            aiNewState(actor, &cultistBurnGoto);
            break;
        case kDudeBurningZombieAxe:
            aiNewState(actor, &zombieABurnGoto);
            break;
        case kDudeBurningZombieButcher:
            aiNewState(actor, &zombieFBurnGoto);
            break;
        case kDudeBurningInnocent:
            aiNewState(actor, &innocentBurnGoto);
            break;
        case kDudeBurningBeast:
            aiNewState(actor, &beastBurnGoto);
            break;
        case kDudeBurningTinyCaleb:
            aiNewState(actor, &tinycalebBurnGoto);
            break;
        #ifdef NOONE_EXTENSIONS
        case kDudeModernCustomBurning:
            aiNewState(actor, &genDudeBurnGoto);
            break;
        #endif
        }
        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(actor,getangle(dx, dy));
    if (pXTarget->health == 0)
    {
        switch (pSprite->type)
        {
        case kDudeBurningCultist:
            aiNewState(actor, &cultistBurnSearch);
            break;
        case kDudeBurningZombieAxe:
            aiNewState(actor, &zombieABurnSearch);
            break;
        case kDudeBurningZombieButcher:
            aiNewState(actor, &zombieFBurnSearch);
            break;
        case kDudeBurningInnocent:
            aiNewState(actor, &innocentBurnSearch);
            break;
        case kDudeBurningBeast:
            aiNewState(actor, &beastBurnSearch);
            break;
        case kDudeBurningTinyCaleb:
            aiNewState(actor, &tinycalebBurnSearch);
            break;
        #ifdef NOONE_EXTENSIONS
        case kDudeModernCustomBurning:
            aiNewState(actor, &genDudeBurnSearch);
            break;
        #endif
        }
        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 < 0x333 && abs(nDeltaAngle) < 85)
                {
                    switch (pSprite->type)
                    {
                    case kDudeBurningCultist:
                        aiNewState(actor, &cultistBurnAttack);
                        break;
                    case kDudeBurningZombieAxe:
                        aiNewState(actor, &zombieABurnAttack);
                        break;
                    case kDudeBurningZombieButcher:
                        aiNewState(actor, &zombieFBurnAttack);
                        break;
                    case kDudeBurningInnocent:
                        aiNewState(actor, &innocentBurnAttack);
                        break;
                    case kDudeBurningBeast:
                        aiNewState(actor, &beastBurnAttack);
                        break;
                    case kDudeBurningTinyCaleb:
                        aiNewState(actor, &tinycalebBurnAttack);
                        break;
                    #ifdef NOONE_EXTENSIONS
                    case kDudeModernCustomBurning:
                        aiNewState(actor, &genDudeBurnSearch);
                        break;
                    #endif
                    }
                }
                return;
            }
        }
    }
    
    switch (pSprite->type)
    {
    case kDudeBurningCultist:
        aiNewState(actor, &cultistBurnGoto);
        break;
    case kDudeBurningZombieAxe:
        aiNewState(actor, &zombieABurnGoto);
        break;
    case 242:
        aiNewState(actor, &zombieFBurnGoto);
        break;
    case kDudeBurningInnocent:
        aiNewState(actor, &innocentBurnGoto);
        break;
    case kDudeBurningBeast:
        aiNewState(actor, &beastBurnGoto);
        break;
    case kDudeBurningTinyCaleb:
        aiNewState(actor, &tinycalebBurnGoto);
        break;
    #ifdef NOONE_EXTENSIONS
    case kDudeModernCustomBurning:
        aiNewState(actor, &genDudeBurnSearch);
        break;
    #endif
    }
    pXSprite->target = -1;
}

END_BLD_NS