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C4_GAME.C
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C4_GAME.C
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/* Catacomb Abyss Source Code
* Copyright (C) 1993-2014 Flat Rock Software
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* 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.
*/
// C3_GAME.C
#include <stdlib.h>
#include "DEF.H"
#include "gelib.h"
#pragma hdrstop
#ifdef PROFILE
#include "TIME.H"
#endif
/*
=============================================================================
LOCAL CONSTANTS
=============================================================================
*/
#define NUMLUMPS 36
#define ORCLUMP 0
#define TROLLLUMP 1
#define BOLTLUMP 2
#define NUKELUMP 3
#define POTIONLUMP 4
#define RKEYLUMP 5
#define YKEYLUMP 6
#define GKEYLUMP 7
#define BKEYLUMP 8
#define SCROLLLUMP 9
#define CHESTLUMP 10
#define PLAYERLUMP 11
#define WALL1LUMP 12
#define WALL2LUMP 13
#define BDOORLUMP 14
#define DEMONLUMP 15
#define MAGELUMP 16
#define BATLUMP 17
#define GRELLUMP 18
#define TOMBSTONESLUMP 19
#define ZOMBIELUMP 20
#define SPOOKLUMP 21
#define SKELETONLUMP 22
#define RGEMLUMP 23
#define GGEMLUMP 24
#define BGEMLUMP 25
#define YGEMLUMP 26
#define PGEMLUMP 27
#define RKEY2LUMP 28
#define WETMANLUMP 29
#define OBJ_WARPLUMP 30
#define EYELUMP 31
#define REDDEMONLUMP 32
#define PITLUMP 33
#define FTIMELUMP 34
#define WATERCHESTLUMP 35
int lumpstart[NUMLUMPS] = {
ORC_LUMP_START,
TROLL_LUMP_START,
BOLT_LUMP_START,
NUKE_LUMP_START,
POTION_LUMP_START,
RKEY_LUMP_START,
YKEY_LUMP_START,
GKEY_LUMP_START,
BKEY_LUMP_START,
SCROLL_LUMP_START,
CHEST_LUMP_START,
PLAYER_LUMP_START,
//WALL1_LUMP_START,
//WALL2_LUMP_START,
//BDOOR_LUMP_START,
0,0,0,
DEMON_LUMP_START,
MAGE_LUMP_START,
BAT_LUMP_START,
GREL_LUMP_START,
TOMBSTONES_LUMP_START,
ZOMBIE_LUMP_START,
SPOOK_LUMP_START,
SKELDUDE_LUMP_START,
RGEM_LUMP_START,
GGEM_LUMP_START,
BGEM_LUMP_START,
YGEM_LUMP_START,
PGEM_LUMP_START,
RKEY2_LUMP_START,
WETMAN_LUMP_START,
OBJ_WARP_LUMP_START,
EYE_LUMP_START,
REDDEMON_LUMP_START,
PIT_LUMP_START,
TIME_LUMP_START,
O_WATER_CHEST_LUMP_START,
};
int lumpend[NUMLUMPS] = {
ORC_LUMP_END,
TROLL_LUMP_END,
BOLT_LUMP_END,
NUKE_LUMP_END,
POTION_LUMP_END,
RKEY_LUMP_END,
YKEY_LUMP_END,
GKEY_LUMP_END,
BKEY_LUMP_END,
SCROLL_LUMP_END,
CHEST_LUMP_END,
PLAYER_LUMP_END,
//WALL1_LUMP_END,
//WALL2_LUMP_END,
//BDOOR_LUMP_END,
0,0,0,
DEMON_LUMP_END,
MAGE_LUMP_END,
BAT_LUMP_END,
GREL_LUMP_END,
TOMBSTONES_LUMP_END,
ZOMBIE_LUMP_END,
SPOOK_LUMP_END,
SKELDUDE_LUMP_END,
RGEM_LUMP_END,
GGEM_LUMP_END,
BGEM_LUMP_END,
YGEM_LUMP_END,
PGEM_LUMP_END,
RKEY2_LUMP_END,
WETMAN_LUMP_END,
OBJ_WARP_LUMP_END,
EYE_LUMP_END,
REDDEMON_LUMP_END,
PIT_LUMP_END,
TIME_LUMP_END,
O_WATER_CHEST_LUMP_END,
};
/*
=============================================================================
GLOBAL VARIABLES
=============================================================================
*/
unsigned latchpics[NUMLATCHPICS];
unsigned tileoffsets[NUMTILE16];
unsigned textstarts[27];
boolean splitscreen=false;
/*
=============================================================================
LOCAL VARIABLES
=============================================================================
*/
boolean lumpneeded[NUMLUMPS];
//===========================================================================
//==========================================================================
//
//
// LOCAL PROTOTYPES
//
//
//==========================================================================
void CashPoints(void);
/*
==========================
=
= ScanInfoPlane
=
= Spawn all actors and mark down special places
=
==========================
*/
void ScanInfoPlane (void)
{
extern unsigned gnd_colors[];
char hibyte;
unsigned x,y,i,j;
int tile;
unsigned far *start;
InitObjList(); // start spawning things with a clean slate
memset (lumpneeded,0,sizeof(lumpneeded));
start = mapsegs[2];
for (y=0;y<mapheight;y++)
for (x=0;x<mapwidth;x++)
{
tile = *start++;
hibyte = tile >> 8;
tile &= 0xff;
if (!tile)
continue;
switch (tile)
{
case 1:
case 2:
case 3:
case 4:
lumpneeded[PLAYERLUMP] = true;
SpawnPlayer(x,y,NORTH+tile-1);
break;
case 5:
case 6:
case 7:
case 8:
case 9:
case 10:
case 11:
lumpneeded[tile-5+BOLTLUMP] = true;
SpawnBonus(x,y,tile-5);
break;
case 29:
lumpneeded[RKEY2LUMP] = true;
SpawnBonus(x,y,B_RKEY2);
break;
case 58:
case 59:
case 60:
case 61:
case 62:
lumpneeded[tile-58+RGEMLUMP] = true;
SpawnBonus(x,y,tile-58+B_RGEM);
break;
case 12:
case 13:
case 14:
case 15:
case 16:
case 17:
case 18:
case 19:
lumpneeded[SCROLLLUMP] = true;
SpawnBonus(x,y,B_SCROLL1+tile-12);
break;
#if 0
case 20: // goal
lumpneeded[GOALLUMP] = true;
SpawnBonus(x,y,B_GOAL);
break;
#endif
case 21: // chest
if (gnd_colors[gamestate.mapon] == 0x0101)
lumpneeded[WATERCHESTLUMP] = true;
else
lumpneeded[CHESTLUMP] = true;
SpawnBonus(x,y,B_CHEST);
break;
case 31:
case 32:
case 33:
case 34:
case 35:
lumpneeded[OBJ_WARPLUMP] = true;
SpawnWarp (x,y,tile-30);
break;
case 41:
if (gamestate.difficulty <gd_Hard)
break;
case 36:
if (gamestate.difficulty <gd_Normal)
break;
case 22:
lumpneeded[TROLLLUMP] = true;
SpawnTroll (x,y);
break;
case 42:
if (gamestate.difficulty <gd_Hard)
break;
case 37:
if (gamestate.difficulty <gd_Normal)
break;
case 23:
lumpneeded[ORCLUMP] = true;
SpawnOrc (x,y);
break;
case 43:
if (gamestate.difficulty <gd_Hard)
break;
case 38:
if (gamestate.difficulty <gd_Normal)
break;
case 25:
lumpneeded[BATLUMP] = true;
SpawnBat (x,y);
break;
case 44:
if (gamestate.difficulty <gd_Hard)
break;
case 39:
if (gamestate.difficulty <gd_Normal)
break;
case 26:
lumpneeded[DEMONLUMP] = true;
SpawnDemon (x,y);
break;
case 45:
if (gamestate.difficulty <gd_Hard)
break;
case 40:
if (gamestate.difficulty <gd_Normal)
break;
case 27:
lumpneeded[MAGELUMP] = true;
SpawnMage (x,y);
break;
case 28:
lumpneeded[RKEYLUMP] = lumpneeded[GRELLUMP] = true;
SpawnGrelminar (x,y);
break;
#if 0
case 29:
SpawnBounce (x,y,0);
break;
case 30:
SpawnBounce (x,y,1);
break;
#endif
case 46:
case 47:
case 48:
lumpneeded[TOMBSTONESLUMP] = true;
SpawnTombstone(x,y,tile-46);
break;
case 54:
lumpneeded[PITLUMP] = true;
SpawnWarp(x,y,0);
break;
case 53:
if (gamestate.difficulty <gd_Normal)
break;
case 52:
lumpneeded[ZOMBIELUMP] = true;
SpawnZombie(x,y);
break;
case 51:
if (gamestate.difficulty <gd_Hard)
break;
case 50:
if (gamestate.difficulty <gd_Normal)
break;
case 49:
lumpneeded[SPOOKLUMP] = true;
SpawnSpook(x,y);
break;
case 57:
lumpneeded[FTIMELUMP] = true;
SpawnFTime(x,y);
break;
case 56:
if (gamestate.difficulty <gd_Normal)
break;
case 55:
lumpneeded[SKELETONLUMP] = true;
SpawnSkeleton(x,y);
break;
case 65:
if (gamestate.difficulty <gd_Hard)
break;
case 64:
if (gamestate.difficulty <gd_Normal)
break;
case 63:
lumpneeded[WETMANLUMP] = true;
SpawnWetMan(x,y);
break;
case 68:
if (gamestate.difficulty <gd_Hard)
break;
case 67:
if (gamestate.difficulty <gd_Normal)
break;
case 66:
lumpneeded[EYELUMP] = true;
SpawnEye(x,y);
break;
case 71:
if (gamestate.difficulty <gd_Hard)
break;
case 70:
if (gamestate.difficulty <gd_Normal)
break;
case 69:
lumpneeded[SKELETONLUMP] = true;
SpawnWallSkeleton(x,y);
break;
case 20:
case 24:
case 30:
lumpneeded[REDDEMONLUMP] = true;
SpawnRedDemon (x,y);
break;
}
}
}
//==========================================================================
/*
==================
=
= ScanText
=
==================
*/
void ScanText (void)
{
int i;
char far *text;
text = (char _seg *)grsegs[LEVEL1TEXT+mapon];
textstarts[0] = 0;
for (i=1;i<=26;i++)
{
while (*text != '\n')
{
if (*text == '\r')
*text = 0;
text++;
}
text++;
textstarts[i] = FP_OFF(text);
}
}
//==========================================================================
/*
==================
=
= DrawEnterScreen
=
==================
*/
static char *levelnames[] =
{
"The Towne Cemetery",
"The Garden of Tears",
"The Den of Zombies",
"The Mausoleum Grounds",
"The Main Floor of the Mausoleum",
"Mike's Blastable Passage",
"The Crypt of Nemesis the Undead",
"The Subterranean Vault",
"The Ancient Aqueduct",
"The Orc Mines",
"The Lair of the Troll",
"The Demon's Inferno",
"The Battleground of the Titans",
"The Coven of Mages",
"The Inner Sanctum",
"The Haunt of Nemesis",
"The Passage to the Surface",
"Big Jim's Domain",
"Nolan's Nasty",
};
void DrawEnterScreen (void)
{
int width;
bufferofs = displayofs = screenloc[screenpage];
VW_Bar(0,0,VIEWWIDTH,VIEWHEIGHT,0);
width = strlen(levelnames[gamestate.mapon]);
if (width < 20)
width = 20;
CenterWindow(width,5);
US_CPrint("\nYou have arrived at\n");
US_CPrint(levelnames[gamestate.mapon]);
}
//==========================================================================
boolean tileneeded[NUMFLOORS];
/*
==================
=
= CacheScaleds
=
==================
*/
void CacheScaleds (void)
{
int i,j;
unsigned source,dest;
FreeUpMemory ();
CA_CacheGrChunk(LEVEL1TEXT+mapon);
ScanText ();
//
// make sure we are displaying screenpage 0
//
if (screenpage)
{
source = screenloc[screenpage];
dest = screenloc[0];
VW_ScreenToScreen (source,dest,40,VIEWHEIGHT);
screenpage = 0;
VW_SetScreen (dest,0);
displayofs = dest;
}
//
// cache wall pictures
//
for (i=1;i<NUMFLOORS;i++)
if (tileneeded[i])
{
SetupScaleWall (walllight1[i]);
SetupScaleWall (walllight2[i]);
SetupScaleWall (walldark1[i]);
SetupScaleWall (walldark2[i]);
}
//
// cache the actor pictures
//
for (i=0;i<NUMLUMPS;i++)
if (lumpneeded[i])
for (j=lumpstart[i];j<=lumpend[i];j++)
SetupScalePic(j);
source = screenloc[0];
for (i=1;i<=2;i++)
{
dest = screenloc[i];
VW_ScreenToScreen (source,dest,40,VIEWHEIGHT);
}
screenpage = 1;
}
//==========================================================================
/*
==================
=
= SetupGameLevel
=
==================
*/
void SetupGameLevel ()
{
int x,y,i,loop;
unsigned far *map,tile,far *spotptr,spot;
memset (tileneeded,0,sizeof(tileneeded));
//
// randomize if not a demo
//
#if 0
if (DemoMode)
{
US_InitRndT(false);
gamestate.difficulty = gd_Normal;
}
else
#endif
US_InitRndT(true);
//
// load the level
//
CA_CacheMap (gamestate.mapon);
mapwidth = mapheaderseg[mapon]->width;
mapheight = mapheaderseg[mapon]->height;
//
// make a lookup table for the maps left edge
//
spot = 0;
for (y=0;y<mapheight;y++)
{
farmapylookup[y] = spot;
spot += mapwidth;
}
//
// copy the wall data to a data segment array
//
memset (tilemap,0,sizeof(tilemap));
memset (actorat,0,sizeof(actorat));
map = mapsegs[0];
spotptr = mapsegs[2];
for (y=0;y<mapheight;y++)
for (x=0;x<mapwidth;x++)
{
tile = *map++;
if (((*spotptr)>>8) == EXP_WALL_CODE)
{
extern unsigned gnd_colors[];
if (gnd_colors[gamestate.mapon] == 0x0101)
tileneeded[WATEREXP] = tileneeded[WATEREXP+1] = tileneeded[WATEREXP+2] = true;
else
tileneeded[WALLEXP] = tileneeded[WALLEXP+1] = tileneeded[WALLEXP+2] = true;
}
if (tile<NUMFLOORS)
{
if (tile == WALL_SKELETON_CODE)
tileneeded[tile+1] = tileneeded[tile+2] = true;
tileneeded[tile] = true;
tilemap[x][y] = tile;
if (tile>0)
(unsigned)actorat[x][y] = tile;
}
spotptr++;
}
//
// Mark any gfx chunks needed
//
// CA_MarkGrChunk(NORTHICONSPR);
// CA_CacheMarks(NULL);
//
// decide which graphics are needed and spawn actors
//
zombie_base_delay = 0; // (1*60) + random(1*60);
ScanInfoPlane ();
//
// have the caching manager load and purge stuff to make sure all marks
// are in memory
//
CA_LoadAllSounds ();
}
//==========================================================================
/*
=====================
=
= LatchDrawPic
=
=====================
*/
void LatchDrawPic (unsigned x, unsigned y, unsigned picnum)
{
unsigned wide, height, source, dest;
wide = pictable[picnum-STARTPICS].width;
height = pictable[picnum-STARTPICS].height;
dest = bufferofs + ylookup[y]+x;
source = latchpics[picnum-FIRSTLATCHPIC];
EGAWRITEMODE(1);
EGAMAPMASK(15);
asm mov bx,[linewidth]
asm sub bx,[wide]
asm mov ax,[screenseg]
asm mov es,ax
asm mov ds,ax
asm mov si,[source]
asm mov di,[dest]
asm mov dx,[height] // scan lines to draw
asm mov ax,[wide]
lineloop:
asm mov cx,ax
asm rep movsb
asm add di,bx
asm dec dx
asm jnz lineloop
asm mov ax,ss
asm mov ds,ax // restore turbo's data segment
EGAWRITEMODE(0);
}
//==========================================================================
/*
=====================
=
= Victory
=
=====================
*/
void Victory (boolean playsounds)
{
struct Shape shape;
if (playsounds)
{
SD_PlaySound (GETBOLTSND);
SD_WaitSoundDone ();
SD_PlaySound (GETNUKESND);
SD_WaitSoundDone ();
SD_PlaySound (GETPOTIONSND);
SD_WaitSoundDone ();
SD_PlaySound (GETKEYSND);
SD_WaitSoundDone ();
SD_PlaySound (GETSCROLLSND);
SD_WaitSoundDone ();
SD_PlaySound (GETPOINTSSND);
}
FreeUpMemory();
if (!screenfaded)
VW_FadeOut();
screenpage = 1;
VW_SetScreen (screenloc[screenpage],0);
bufferofs = displayofs = screenloc[screenpage];
VW_Bar (0,0,320,120,0);
CA_CacheGrChunk (FINALEPIC);
UNMARKGRCHUNK(FINALEPIC);
VW_DrawPic(0, 0, FINALEPIC);
VW_FadeIn();
#if 0
FreeUpMemory();
if (!screenfaded)
VW_FadeOut();
screenpage = 1;
VW_SetScreen (screenloc[screenpage],0);
if (!FindFile("FINALE."EXT,NULL,1))
Quit("Error: Can't find victory screen.");
if (LoadShape("FINALE."EXT,&shape))
TrashProg("Can't load FINALE."EXT);
bufferofs = displayofs = screenloc[screenpage];
VW_Bar (0,0,320,120,0);
UnpackEGAShapeToScreen(&shape,(320-shape.bmHdr.w)/2,0);
FreeShape(&shape);
VW_FadeIn();
#endif
}
//==========================================================================
#if 0
/*
===================
=
= Died
=
===================
*/
void Died (void)
{
unsigned page1,page2;
//
// fizzle fade screen to grey
//
FreeUpMemory ();
SD_PlaySound (GAMEOVERSND);
bufferofs = screenloc[(screenpage+1)%3];
DisplayMsg("Though fallen, your Spirit ...",NULL);
// LatchDrawPic(0,0,DEADPIC);
// FizzleFade(bufferofs,displayofs,VIEWWIDTH,VIEWHEIGHT,false);
IN_ClearKeysDown();
while (!Keyboard[sc_Enter]);
// IN_Ack();
VW_SetScreen (bufferofs,0);
VW_ColorBorder(0);
}
#endif
//==========================================================================
/*
===================
=
= NormalScreen
=
===================
*/
void NormalScreen (void)
{
VW_SetSplitScreen (200);
bufferofs = displayofs = SCREEN1START;
VW_Bar(0,0,320,200,0);
bufferofs = SCREEN2START;
VW_Bar(0,0,320,200,0);
VW_SetScreen (displayofs,0);
splitscreen = false;
}
//==========================================================================
/*
===================
=
= DrawPlayScreen
=
===================
*/
void DrawPlayScreen (void)
{
int i,j,p,m;
screenpage = 0;
bufferofs = 0;
VW_Bar (0,0,320,STATUSLINES,0);
for (i=0;i<3;i++)
{
bufferofs = screenloc[i];
VW_Bar (0,0,320,VIEWHEIGHT,0);
}
splitscreen = true;
VW_SetSplitScreen(120);
VW_SetScreen(screenloc[0],0);
CA_CacheGrChunk (STATUSPIC);
bufferofs = 0;
VW_DrawPic (0,0,STATUSPIC);
grneeded[STATUSPIC] &= ~ca_levelbit;
MM_SetPurge(&grsegs[STATUSPIC],3);
RedrawStatusWindow ();
bufferofs = displayofs = screenloc[0];
}
//==========================================================================
/*
===================
=
= LoadLatchMem
=
===================
*/
void LoadLatchMem (void)
{
int i,j,p,m;
byte far *src, far *dest;
unsigned destoff;
EGAWRITEMODE(0);
//
// draw some pics into latch memory
//
//
// tile 8s
//
latchpics[0] = freelatch;
src = (byte _seg *)grsegs[STARTTILE8];
dest = MK_FP(0xa000,freelatch);
for (i=0;i<NUMTILE8;i++)
{
for (p=0;p<4;p++)
{
m = 1<<p;
asm mov dx,SC_INDEX
asm mov al,SC_MAPMASK
asm mov ah,[BYTE PTR m]
asm out dx,ax
for (j=0;j<8;j++)
*(dest+j)=*src++;
}
dest+=8;
}
//
// tile 16s
//
src = (byte _seg *)grsegs[STARTTILE16];
for (i=0;i<NUMTILE16;i++)
{
CA_CacheGrChunk (STARTTILE16+i);
src = (byte _seg *)grsegs[STARTTILE16+i];
if (src)
{
tileoffsets[i] = FP_OFF(dest);
for (p=0;p<4;p++)
{
m = 1<<p;
asm mov dx,SC_INDEX
asm mov al,SC_MAPMASK
asm mov ah,[BYTE PTR m]
asm out dx,ax
for (j=0;j<32;j++)
*(dest+j)=*src++;
}
dest+=32;
MM_FreePtr (&grsegs[STARTTILE16+i]);
UNMARKGRCHUNK(STARTTILE16+i);
}
else
tileoffsets[i] = 0;
}
//
// pics
//
destoff = FP_OFF(dest);