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raze/source/games/exhumed/src/rat.cpp
Christoph Oelckers e6f1d92567 - use floats for spawning Exhumed actors
2022-10-05 18:25:57 +02:00

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//-------------------------------------------------------------------------
/*
Copyright (C) 2010-2019 EDuke32 developers and contributors
Copyright (C) 2019 sirlemonhead, Nuke.YKT
This file is part of PCExhumed.
PCExhumed 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"
#include "aistuff.h"
#include "engine.h"
#include "sequence.h"
#include "view.h"
#include "exhumed.h"
#include <assert.h>
BEGIN_PS_NS
int nMinChunk;
int nPlayerPic;
int nMaxChunk;
static actionSeq RatSeq[] = {
{0, 1},
{1, 0},
{1, 0},
{9, 1},
{0, 1}
};
void SerializeRat(FSerializer& arc)
{
if (arc.BeginObject("rat"))
{
arc("minchunk", nMinChunk)
("maxchunk", nMaxChunk)
("playerpic", nPlayerPic)
.EndObject();
}
}
void InitRats()
{
nMinChunk = 9999;
nMaxChunk = -1;
for (int i = 122; i <= 131; i++)
{
int nPic = seq_GetSeqPicnum(kSeqJoe, i, 0);
if (nPic < nMinChunk)
nMinChunk = nPic;
if (nPic > nMaxChunk)
nMaxChunk = nPic;
}
nPlayerPic = seq_GetSeqPicnum(kSeqJoe, 120, 0);
}
void SetRatVel(DExhumedActor* pActor)
{
pActor->spr.xvel = bcos(pActor->int_ang(), -2);
pActor->spr.yvel = bsin(pActor->int_ang(), -2);
}
void BuildRat(DExhumedActor* pActor, const DVector3& pos, sectortype* pSector, int nAngle)
{
if (pActor == nullptr)
{
pActor = insertActor(pSector, 108);
pActor->spr.pos = pos;
}
else
{
ChangeActorStat(pActor, 108);
pActor->spr.pos.Z = pActor->sector()->floorz;
nAngle = pActor->int_ang();
}
pActor->spr.cstat = CSTAT_SPRITE_BLOCK_ALL;
pActor->spr.shade = -12;
pActor->spr.xoffset = 0;
pActor->spr.yoffset = 0;
pActor->spr.picnum = 1;
pActor->spr.pal = pActor->sector()->ceilingpal;
pActor->spr.clipdist = 30;
pActor->set_int_ang(nAngle);
pActor->spr.xrepeat = 50;
pActor->spr.yrepeat = 50;
pActor->spr.xvel = 0;
pActor->spr.yvel = 0;
pActor->spr.zvel = 0;
pActor->spr.lotag = runlist_HeadRun() + 1;
pActor->spr.hitag = 0;
pActor->spr.extra = -1;
if (nAngle >= 0) {
pActor->nAction = 2;
}
else {
pActor->nAction = 4;
}
pActor->nFrame = 0;
pActor->pTarget = nullptr;
pActor->nCount = RandomSize(5);
pActor->nPhase = RandomSize(3);
pActor->spr.intowner = runlist_AddRunRec(pActor->spr.lotag - 1, pActor, 0x240000);
pActor->nRun = runlist_AddRunRec(NewRun, pActor, 0x240000);
}
DExhumedActor* FindFood(DExhumedActor* pActor)
{
auto pSector = pActor->sector();
int x = pActor->int_pos().X;
int y = pActor->int_pos().Y;
int z = pActor->int_pos().Z;
int z2 = (z + pSector->int_ceilingz()) / 2;
if (nChunkTotal)
{
DExhumedActor* pActor2 = nChunkSprite[RandomSize(7) % nChunkTotal];
if (pActor2 != nullptr)
{
if (cansee(x, y, z2, pSector, pActor2->int_pos().X, pActor2->int_pos().Y, pActor2->int_pos().Z, pActor2->sector())) {
return pActor2;
}
}
}
if (!nBodyTotal) {
return nullptr;
}
DExhumedActor* pActor2 = nBodySprite[RandomSize(7) % nBodyTotal];
if (pActor2 != nullptr)
{
if (nPlayerPic == pActor2->spr.picnum)
{
if (cansee(x, y, z, pSector, pActor2->int_pos().X, pActor2->int_pos().Y, pActor2->int_pos().Z, pActor2->sector())) {
return pActor2;
}
}
}
return nullptr;
}
void AIRat::RadialDamage(RunListEvent* ev)
{
auto pActor = ev->pObjActor;
if (!pActor) return;
ev->nDamage = runlist_CheckRadialDamage(pActor);
Damage(ev);
}
void AIRat::Damage(RunListEvent* ev)
{
auto pActor = ev->pObjActor;
if (!pActor) return;
if (ev->nDamage)
{
pActor->spr.cstat = 0;
pActor->spr.xvel = 0;
pActor->spr.yvel = 0;
pActor->nAction = 3;
pActor->nFrame = 0;
}
}
void AIRat::Draw(RunListEvent* ev)
{
auto pActor = ev->pObjActor;
if (!pActor) return;
int nAction = pActor->nAction;
seq_PlotSequence(ev->nParam, SeqOffsets[kSeqRat] + RatSeq[nAction].a, pActor->nFrame, RatSeq[nAction].b);
}
void AIRat::Tick(RunListEvent* ev)
{
auto pActor = ev->pObjActor;
if (!pActor) return;
int nAction = pActor->nAction;
bool bVal = false;
int nSeq = SeqOffsets[kSeqRat] + RatSeq[nAction].a;
pActor->spr.picnum = seq_GetSeqPicnum2(nSeq, pActor->nFrame);
seq_MoveSequence(pActor, nSeq, pActor->nFrame);
pActor->nFrame++;
if (pActor->nFrame >= SeqSize[nSeq])
{
bVal = true;
pActor->nFrame = 0;
}
DExhumedActor* pTarget = pActor->pTarget;
Gravity(pActor);
switch (nAction)
{
default:
return;
case 0:
{
pActor->nCount--;
if (pActor->nCount > 0) {
return;
}
int xVal = abs(pActor->int_pos().X - pTarget->int_pos().X);
int yVal = abs(pActor->int_pos().Y - pTarget->int_pos().Y);
if (xVal > 50 || yVal > 50)
{
pActor->nAction = 2;
pActor->nFrame = 0;
pActor->pTarget = nullptr;
pActor->spr.xvel = 0;
pActor->spr.yvel = 0;
return;
}
pActor->nFrame ^= 1;
pActor->nCount = RandomSize(5) + 4;
pActor->nPhase--;
if (pActor->nPhase <= 0)
{
auto pFoodSprite = FindFood(pActor);
if (pFoodSprite == nullptr) {
return;
}
pActor->pTarget = pFoodSprite;
PlotCourseToSprite(pActor, pFoodSprite);
SetRatVel(pActor);
pActor->nAction = 1;
pActor->nPhase = 900;
pActor->nFrame = 0;
}
return;
}
case 1:
{
pActor->nPhase--;
if (pActor->nPhase <= 0)
{
pActor->nAction = 2;
pActor->nFrame = 0;
pActor->pTarget = nullptr;
pActor->spr.xvel = 0;
pActor->spr.yvel = 0;
}
MoveCreature(pActor);
int xVal = abs(pActor->int_pos().X - pTarget->int_pos().X);
int yVal = abs(pActor->int_pos().Y - pTarget->int_pos().Y);
if (xVal >= 50 || yVal >= 50)
{
pActor->nCount--;
if (pActor->nCount < 0)
{
PlotCourseToSprite(pActor, pTarget);
SetRatVel(pActor);
pActor->nCount = 32;
}
return;
}
pActor->nAction = 0;
pActor->nFrame = 0;
pActor->nPhase = RandomSize(3);
pActor->spr.xvel = 0;
pActor->spr.yvel = 0;
return;
}
case 2:
{
if (pActor->spr.xvel || pActor->spr.yvel || pActor->spr.zvel) {
MoveCreature(pActor);
}
pActor->nCount--;
if (pActor->nCount <= 0)
{
pActor->pTarget = FindFood(pActor);
if (pActor->pTarget == nullptr)
{
pActor->nCount = RandomSize(6);
if (pActor->spr.xvel || pActor->spr.yvel)
{
pActor->spr.xvel = 0;
pActor->spr.yvel = 0;
return;
}
pActor->set_int_ang(RandomSize(11));
SetRatVel(pActor);
return;
}
else
{
PlotCourseToSprite(pActor, pActor->pTarget);
SetRatVel(pActor);
pActor->nAction = 1;
pActor->nPhase = 900;
pActor->nFrame = 0;
return;
}
}
return;
}
case 3:
{
if (bVal)
{
runlist_DoSubRunRec(pActor->spr.intowner);
runlist_FreeRun(pActor->spr.lotag - 1);
runlist_SubRunRec(pActor->nRun);
pActor->spr.cstat = CSTAT_SPRITE_INVISIBLE;
DeleteActor(pActor);
}
return;
}
}
}
END_PS_NS
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