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raze-gles/source/exhumed/src/roach.cpp

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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 "exhumed.h"
#include "engine.h"
#include "runlist.h"
#include "roach.h"
#include "typedefs.h"
#include "sequence.h"
#include "move.h"
#include "random.h"
#include "trigdat.h"
#include "bullet.h"
#include "items.h"
#include <assert.h>
BEGIN_PS_NS
#define kMaxRoach 100
int16_t RoachSprite = -1;
int16_t RoachCount = -1;
static actionSeq ActionSeq[] = {{ 24, 0 }, { 0, 0 }, { 0, 0 }, { 16, 0 }, { 8, 0 }, { 32, 1 }, { 42, 1 }};
struct Roach
{
short nHealth;
short field_2;
short nAction;
short nSprite;
short nTarget;
short field_A;
short field_C;
short field_E;
};
Roach RoachList[kMaxRoach];
/* Kilmaat Sentry */
void InitRoachs()
{
RoachCount = kMaxRoach;
RoachSprite = 1;
}
// TODO - make nType a bool?
int BuildRoach(int nType, int nSprite, int x, int y, int z, short nSector, int angle)
{
RoachCount--;
if (RoachCount < 0) {
return -1;
}
if (nSprite == -1)
{
nSprite = insertsprite(nSector, 105);
}
else
{
changespritestat(nSprite, 105);
x = sprite[nSprite].x;
y = sprite[nSprite].y;
z = sector[sprite[nSprite].sectnum].floorz;
angle = sprite[nSprite].ang;
}
assert(nSprite >= 0 && nSprite < kMaxSprites);
sprite[nSprite].x = x;
sprite[nSprite].y = y;
sprite[nSprite].z = z;
sprite[nSprite].cstat = 0x101;
sprite[nSprite].shade = -12;
sprite[nSprite].xoffset = 0;
sprite[nSprite].yoffset = 0;
sprite[nSprite].picnum = 1;
sprite[nSprite].pal = sector[sprite[nSprite].sectnum].ceilingpal;
sprite[nSprite].clipdist = 60;
sprite[nSprite].ang = angle;
sprite[nSprite].xrepeat = 40;
sprite[nSprite].yrepeat = 40;
sprite[nSprite].xvel = 0;
sprite[nSprite].yvel = 0;
sprite[nSprite].zvel = 0;
sprite[nSprite].hitag = 0;
sprite[nSprite].lotag = runlist_HeadRun() + 1;
sprite[nSprite].extra = -1;
// GrabTimeSlot(3);
if (nType)
{
RoachList[RoachCount].nAction = 0;
}
else
{
RoachList[RoachCount].nAction = 1;
}
RoachList[RoachCount].nSprite = nSprite;
RoachList[RoachCount].field_2 = 0;
RoachList[RoachCount].field_C = 0;
RoachList[RoachCount].nTarget = -1;
RoachList[RoachCount].nHealth = 600;
sprite[nSprite].owner = runlist_AddRunRec(sprite[nSprite].lotag - 1, RoachCount | 0x1C0000);
RoachList[RoachCount].field_A = runlist_AddRunRec(NewRun, RoachCount | 0x1C0000);
nCreaturesLeft++;
return RoachCount | 0x1C0000;
}
void GoRoach(short nSprite)
{
sprite[nSprite].xvel = (Sin(sprite[nSprite].ang + 512) >> 1) - (Sin(sprite[nSprite].ang + 512) >> 3);
sprite[nSprite].yvel = (Sin(sprite[nSprite].ang) >> 1) - (Sin(sprite[nSprite].ang) >> 3);
}
void FuncRoach(int a, int nDamage, int nRun)
{
short nRoach = RunData[nRun].nVal;
assert(nRoach >= 0 && nRoach < kMaxRoach);
bool bVar_24 = false;
short nSprite = RoachList[nRoach].nSprite;
short nAction = RoachList[nRoach].nAction;
int nMessage = a & 0x7F0000;
switch (nMessage)
{
default:
{
DebugOut("unknown msg %d for Roach\n", a & 0x7F0000);
return;
}
case 0x90000:
{
seq_PlotSequence(a & 0xFFFF, ActionSeq[nAction].a + SeqOffsets[kSeqRoach], RoachList[nRoach].field_2, ActionSeq[nAction].b);
return;
}
case 0xA0000: // fall through to next case
{
nDamage = runlist_CheckRadialDamage(nSprite);
}
case 0x80000:
{
if (nDamage)
{
if (RoachList[nRoach].nHealth <= 0) {
return;
}
RoachList[nRoach].nHealth -= nDamage;
if (RoachList[nRoach].nHealth <= 0)
{
sprite[nSprite].xvel = 0;
sprite[nSprite].yvel = 0;
sprite[nSprite].zvel = 0;
RoachList[nRoach].nHealth = 0;
sprite[nSprite].cstat &= 0xFEFE;
nCreaturesLeft++; // This seems to be incorrect in original exe? should be decrementing?
if (nAction < 5)
{
DropMagic(nSprite);
RoachList[nRoach].nAction = 5;
RoachList[nRoach].field_2 = 0;
}
}
else
{
short nSprite2 = a & 0xFFFF;
if (nSprite2 >= 0)
{
if (sprite[nSprite2].statnum < 199) {
RoachList[nRoach].nTarget = nSprite2;
}
if (nAction == 0)
{
RoachList[nRoach].nAction = 2;
GoRoach(nSprite);
RoachList[nRoach].field_2 = 0;
}
else
{
if (!RandomSize(4))
{
RoachList[nRoach].nAction = 4;
RoachList[nRoach].field_2 = 0;
}
}
}
}
}
return;
}
case 0x20000:
{
Gravity(nSprite);
int nSeq = SeqOffsets[kSeqRoach] + ActionSeq[RoachList[nRoach].nAction].a;
sprite[nSprite].picnum = seq_GetSeqPicnum2(nSeq, RoachList[nRoach].field_2);
seq_MoveSequence(nSprite, nSeq, RoachList[nRoach].field_2);
RoachList[nRoach].field_2++;
if (RoachList[nRoach].field_2 >= SeqSize[nSeq])
{
bVar_24 = true;
RoachList[nRoach].field_2 = 0;
}
int nFlag = FrameFlag[SeqBase[nSeq] + RoachList[nRoach].field_2];
short nTarget = RoachList[nRoach].nTarget;
if (nAction > 5) {
return;
}
switch (nAction)
{
case 0:
{
if (RoachList[nRoach].field_2 == 1)
{
RoachList[nRoach].field_C--;
if (RoachList[nRoach].field_C <= 0)
{
RoachList[nRoach].field_C = RandomSize(6);
}
else
{
RoachList[nRoach].field_2 = 0;
}
}
if (((nRoach & 0xF) == (totalmoves & 0xF)) && nTarget < 0)
{
short nTarget = FindPlayer(nSprite, 50);
if (nTarget >= 0)
{
RoachList[nRoach].nAction = 2;
RoachList[nRoach].field_2 = 0;
RoachList[nRoach].nTarget = nTarget;
GoRoach(nSprite);
}
}
return;
}
case 1:
{
// parltly the same as case 0...
if (((nRoach & 0xF) == (totalmoves & 0xF)) && nTarget < 0)
{
short nTarget = FindPlayer(nSprite, 100);
if (nTarget >= 0)
{
RoachList[nRoach].nAction = 2;
RoachList[nRoach].field_2 = 0;
RoachList[nRoach].nTarget = nTarget;
GoRoach(nSprite);
}
}
return;
}
case 2:
{
if ((totalmoves & 0xF) == (nRoach & 0xF))
{
PlotCourseToSprite(nSprite, nTarget);
GoRoach(nSprite);
}
int nVal = MoveCreatureWithCaution(nSprite);
if ((nVal & 0xC000) == 49152)
{
if ((nVal & 0x3FFF) == nTarget)
{
// repeated below
RoachList[nRoach].field_E = RandomSize(2) + 1;
RoachList[nRoach].nAction = 3;
sprite[nSprite].xvel = 0;
sprite[nSprite].yvel = 0;
sprite[nSprite].ang = GetMyAngle(sprite[nTarget].x - sprite[nSprite].x, sprite[nTarget].y - sprite[nSprite].y);
RoachList[nRoach].field_2 = 0;
}
else
{
sprite[nSprite].ang = (sprite[nSprite].ang + 256) & kAngleMask;
GoRoach(nSprite);
}
}
else if ((nVal & 0xC000) == 32768)
{
sprite[nSprite].ang = (sprite[nSprite].ang + 256) & kAngleMask;
GoRoach(nSprite);
}
//else if ((nVal & 0xC000) < 32768)
else
{
if (RoachList[nRoach].field_C != 0)
{
RoachList[nRoach].field_C--;
}
else
{
// same as above
RoachList[nRoach].field_E = RandomSize(2) + 1;
RoachList[nRoach].nAction = 3;
sprite[nSprite].xvel = 0;
sprite[nSprite].yvel = 0;
sprite[nSprite].ang = GetMyAngle(sprite[nTarget].x - sprite[nSprite].x, sprite[nTarget].y - sprite[nSprite].y);
RoachList[nRoach].field_2 = 0;
}
}
if (nTarget != -1 && !(sprite[nTarget].cstat & 0x101))
{
RoachList[nRoach].nAction = 1;
RoachList[nRoach].field_2 = 0;
RoachList[nRoach].field_C = 100;
RoachList[nRoach].nTarget = -1;
sprite[nSprite].xvel = 0;
sprite[nSprite].yvel = 0;
}
return;
}
case 3:
{
if (bVar_24)
{
RoachList[nRoach].field_E--;
if (RoachList[nRoach].field_E <= 0)
{
RoachList[nRoach].nAction = 2;
GoRoach(nSprite);
RoachList[nRoach].field_2 = 0;
RoachList[nRoach].field_C = RandomSize(7);
}
}
else
{
if (nFlag & 0x80)
{
BuildBullet(nSprite, 13, 0, 0, -1, sprite[nSprite].ang, nTarget + 10000, 1);
}
}
return;
}
case 4:
{
if (bVar_24)
{
RoachList[nRoach].nAction = 2;
RoachList[nRoach].field_2 = 0;
}
return;
}
case 5:
{
if (bVar_24)
{
sprite[nSprite].cstat = 0;
RoachList[nRoach].nAction = 6;
RoachList[nRoach].field_2 = 0;
}
return;
}
}
}
}
}
END_PS_NS
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