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C6_PLAY.C
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/* Catacomb Apocalypse 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_PLAY.C
#include "DEF.H"
#include "gelib.h"
#pragma hdrstop
/*
=============================================================================
LOCAL CONSTANTS
=============================================================================
*/
#define POINTTICS 6
#define PAUSE 300
/*
=============================================================================
GLOBAL VARIABLES
=============================================================================
*/
byte bcolor;
short skytimer=-1,skytimer_reset;
short groundtimer=-1,groundtimer_reset;
unsigned scolor,gcolor;
unsigned *skycolor,*groundcolor,debug_sky,debug_gnd;
unsigned nocolorchange=0xFFFF;
byte BGFLAGS, // global that holds all current flags
bgflag; // used by BG changer, this flag is set when done
unsigned sky_daytonight[]={0x0909,0x0101,0x0808,0x0000,0xFFFF};
//unsigned gnd_daytonight[]={0x0202,0xFFFF};
unsigned sky_lightning[]={0x0101,0x0909,0x0f0f,0x0808,0x0000,0xFFFF};
unsigned sky_colors[NUMLEVELS]={0x0000,0x0000,0x0000,0x0000,0x0808,
0x0404,0x0000,0x0000,0x0000,0x0000,
0x0000,0x0000,0x0000,0x0000,0x0606,
0x0000,0x0000,0x0000,0x0000,0x0000,
0x0000};
unsigned gnd_colors[NUMLEVELS]={0x0202,0x0202,0x0606,0x0202,0x0707,
0x0505,0x0808,0x0606,0x0101,0x0808,
0x0606,0x0404,0x0808,0x0c0c,0x0e0e,
0x0808,0x0808,0x0c0c,0x0000,0x0707,
0x0808};
ControlInfo control;
boolean running=false; //,slowturn;
int bordertime;
objtype objlist[MAXACTORS],*new,*obj,*player,*lastobj,*objfreelist;
#if USE_INERT_LIST
inertobjtype inertobjlist[MAXINERTOBJ],*inert;
#endif
unsigned farmapylookup[MAPSIZE];
byte *nearmapylookup[MAPSIZE];
boolean singlestep,godmode;
int extravbls;
status_flags status_flag;
int status_delay;
//
// replacing refresh manager
//
unsigned mapwidth,mapheight,tics,realtics;
boolean compatability;
byte *updateptr;
unsigned mapwidthtable[64];
unsigned uwidthtable[UPDATEHIGH];
unsigned blockstarts[UPDATEWIDE*UPDATEHIGH];
#define UPDATESCREENSIZE (UPDATEWIDE*PORTTILESHIGH+2)
#define UPDATESPARESIZE (UPDATEWIDE*2+4)
#define UPDATESIZE (UPDATESCREENSIZE+2*UPDATESPARESIZE)
byte update[UPDATESIZE];
int mousexmove,mouseymove;
int pointcount,pointsleft;
short BeepTime = 0;
/*
=============================================================================
LOCAL VARIABLES
=============================================================================
*/
void CalcBounds (objtype *ob);
void DrawPlayScreen (void);
void PreFullDisplay(void);
void PostFullDisplay(boolean draw_view);
//
// near data map array (wall values only, get text number from far data)
//
byte tilemap[MAPSIZE][MAPSIZE];
byte spotvis[MAPSIZE][MAPSIZE];
objtype *actorat[MAPSIZE][MAPSIZE];
objtype dummyobj;
int bordertime;
int objectcount;
void StopMusic(void);
void StartMusic(void);
void CalibrateJoystick(short joynum);
//==========================================================================
///////////////////////////////////////////////////////////////////////////
//
// CenterWindow() - Generates a window of a given width & height in the
// middle of the screen
//
///////////////////////////////////////////////////////////////////////////
#define MAXX 320
#define MAXY 120
void CenterWindow(word w,word h)
{
US_DrawWindow(((MAXX / 8) - w) / 2,((MAXY / 8) - h) / 2,w,h);
}
//===========================================================================
/*
=====================
=
= CheckKeys
=
=====================
*/
void CheckKeys (void)
{
extern boolean autofire;
if (screenfaded) // don't do anything with a faded screen
return;
#if 0
//
// pause key wierdness can't be checked as a scan code
//
if (Paused)
{
CenterWindow (8,3);
US_PrintCentered ("PAUSED");
VW_UpdateScreen ();
// SD_MusicOff();
IN_Ack();
// SD_MusicOn();
Paused = false;
if (MousePresent) Mouse(MDelta); // Clear accumulated mouse movement
}
else
if (Keyboard[sc_Enter]) // P = pause with no screen disruptioon
{
// SD_MusicOff();
DisplaySMsg("PAUSED",NULL);
IN_Ack();
// SD_MusicOn();
if (MousePresent) Mouse(MDelta); // Clear accumulated mouse movement
}
else
if (Keyboard[sc_S])
{
char *Text[] = {{"Slow Mode ON"},{"Slow Mode OFF"}};
SlowMode ^= 1;
extravbls = SlowMode << 3;
CenterWindow (8,3);
US_PrintCentered (Text[SlowMode]);
VW_UpdateScreen ();
// SD_MusicOff();
IN_Ack();
// SD_MusicOn();
if (MousePresent) Mouse(MDelta); // Clear accumulated mouse movement
}
#endif
// F2 - SOUND OPTIONS
//
if (Keyboard[sc_F2])
{
int height=7;
boolean ChoiceMade = false;
if (AdLibPresent)
height++;
VW_FixRefreshBuffer();
CenterWindow(22,height);
US_Print( "\n 1 ) NO SOUND \n");
US_Print( " 2 ) PC AUDIO \n");
if (AdLibPresent)
US_Print(" 3 ) ADLIB AUDIO\n");
US_Print( "\n ESC) EXIT ");
VW_UpdateScreen();
// Switch audio device ON/OFF & load sounds if there
// was a change in the device.
do {
if (Keyboard[1]) // ESC - Exit
ChoiceMade = true;
else
if (Keyboard[2]) // 1 - No Sound
{
SD_SetSoundMode(sdm_Off);
ChoiceMade = true;
}
else
if (Keyboard[3]) // 2 - PC Audio
{
SD_SetSoundMode(sdm_PC);
// if (oldsoundmode != sdm_PC)
CA_LoadAllSounds();
ChoiceMade = true;
}
else
if ((Keyboard[4]) && AdLibPresent) // 3 - AdLib Audio
{
SD_SetSoundMode(sdm_AdLib);
// if (oldsoundmode != sdm_AdLib)
CA_LoadAllSounds();
ChoiceMade = true;
}
} while (!ChoiceMade);
tics = realtics = 1;
IN_ClearKeysDown();
}
// F5 - CALIBRATE JOYSTICK
//
if (Keyboard[sc_F5])
{
CalibrateJoystick(0);
tics = realtics = 1;
IN_ClearKeysDown();
}
deadloop:;
// ESCAPE - quits game
//
if ((Keyboard[sc_Escape]) || (Flags & FL_DEAD))
{
char ch;
DisplaySMsg("Options", NULL);
status_flag = S_NONE;
if (Flags & FL_DEAD)
{
char choices[] = {sc_Escape,sc_R,sc_N,sc_Q,0};
ch = DisplayMsg("Restore New Quit",choices);
DisplayMsg(" ", NULL);
}
else
{
char choices[] = {sc_Escape,sc_S,sc_R,sc_N,sc_Q,0};
ch = DisplayMsg("Save Restore New Quit",choices);
}
DrawText(true);
switch (ch)
{
case sc_S:
if (!(Flags & FL_DEAD))
Keyboard[sc_F3] = true;
break;
case sc_R:
Keyboard[sc_F4] = true;
break;
case sc_N:
DisplaySMsg("Starting anew", NULL);
VW_WaitVBL(60);
playstate = ex_resetgame;
Flags &= ~FL_DEAD;
break;
case sc_Q:
DisplaySMsg("FARE THEE WELL!", NULL);
VW_WaitVBL(120);
if (!Flags & FL_QUICK)
VW_FadeOut();
NormalScreen();
FreeUpMemory();
Quit(NULL);
break;
}
tics = realtics = 1;
}
// F1 - DISPLAY HELP
//
if (Keyboard[sc_F1])
{
PrintHelp();
#ifdef TEXT_PRESENTER
extern PresenterInfo MainHelpText;
VW_FadeOut();
FreeUpMemory();
if (!LoadPresenterScript("HELP.TXT",&MainHelpText))
{
VW_FadeIn();
CenterWindow(30,5);
US_CPrint("\nError loading HELP file.\n");
US_CPrint("Press any key.");
IN_Ack();
VW_FadeOut();
}
else
{
VW_SetSplitScreen(200);
bufferofs = displayofs = screenloc[0];
VW_Bar(0,0,320,200,0);
Display640();
Presenter(&MainHelpText);
Display320();
}
FreePresenterScript(&MainHelpText);
#endif
VW_SetSplitScreen(120);
VW_SetScreen(screenloc[0],0);
screenpage = 0;
CacheScaleds();
bufferofs = 0;
RedrawStatusWindow();
ThreeDRefresh();
VW_FadeIn();
Keyboard[sc_F1] = false;
tics = realtics = 1;
IN_ClearKeysDown();
}
// F3 - SAVE GAME
//
if ((Keyboard[sc_F3]) && (!(Flags & FL_DEAD)))
{
PreFullDisplay();
GE_SaveGame();
PostFullDisplay(true);
tics = realtics = 1;
IN_ClearKeysDown();
}
// F4 - LOAD GAME
//
if (Keyboard[sc_F4])
{
PreFullDisplay();
if (GE_LoadGame())
{
loadedgame = true;
playstate = ex_loadedgame;
Flags &= ~FL_DEAD;
lasttext = -1;
PostFullDisplay(false);
}
else
if (playstate == ex_victorious)
{
PostFullDisplay(false);
Victory(false);
IN_Ack();
Quit(NULL);
}
else
PostFullDisplay(true);
Keyboard[sc_F5] = false;
tics = realtics = 1;
IN_ClearKeysDown();
}
if (Flags & FL_DEAD)
goto deadloop;
//
// F10-? debug keys
//
if (Keyboard[sc_BackSpace])
{
DebugKeys();
if (MousePresent) Mouse(MDelta); // Clear accumulated mouse movement
lasttimecount = TimeCount;
}
}
//-------------------------------------------------------------------------
// PreFullDisplay()
//-------------------------------------------------------------------------
void PreFullDisplay()
{
VW_FadeOut();
VW_SetSplitScreen(200);
bufferofs = displayofs = screenloc[0];
VW_Bar(0,0,320,200,0);
}
//-------------------------------------------------------------------------
// PostFullDisplay()
//-------------------------------------------------------------------------
void PostFullDisplay(boolean draw_view)
{
VW_SetSplitScreen(120);
bufferofs = 0;
RedrawStatusWindow();
if (draw_view)
{
ThreeDRefresh();
VW_FadeIn();
}
}
//===========================================================================
/*
#############################################################################
The objlist data structure
#############################################################################
objlist containt structures for every actor currently playing. The structure
is accessed as a linked list starting at *player, ending when ob->next ==
NULL. GetNewObj inserts a new object at the end of the list, meaning that
if an actor spawn another actor, the new one WILL get to think and react the
same frame. RemoveObj unlinks the given object and returns it to the free
list, but does not damage the objects ->next pointer, so if the current object
removes itself, a linked list following loop can still safely get to the
next element.
<backwardly linked free list>
#############################################################################
*/
/*
=========================
=
= InitObjList
=
= Call to clear out the entire object list, returning them all to the free
= list. Allocates a special spot for the player.
=
=========================
*/
void InitObjList (void)
{
int i;
for (i=0;i<MAXACTORS;i++)
{
objlist[i].prev = &objlist[i+1];
objlist[i].next = NULL;
}
objlist[MAXACTORS-1].prev = NULL;
objfreelist = &objlist[0];
lastobj = NULL;
objectcount = 0;
//
// give the player and score the first free spots
//
GetNewObj (false);
player = new;
#if USE_INERT_LIST
inert = inertobjlist;
#endif
}
//===========================================================================
/*
=========================
=
= GetNewObj
=
= Sets the global variable new to point to a free spot in objlist.
= The free spot is inserted at the end of the liked list
=
= When the object list is full, the caller can either have it bomb out ot
= return a dummy object pointer that will never get used
=
=========================
*/
void GetNewObj (boolean usedummy)
{
if (!objfreelist)
{
if (usedummy)
{
new = &dummyobj;
return;
}
Quit ("GetNewObj: No free spots in objlist!");
}
new = objfreelist;
objfreelist = new->prev;
memset (new,0,sizeof(*new));
if (lastobj)
lastobj->next = new;
new->prev = lastobj; // new->next is allready NULL from memset
new->active = false;
lastobj = new;
objectcount++;
}
//===========================================================================
/*
=========================
=
= RemoveObj
=
= Add the given object back into the free list, and unlink it from it's
= neighbors
=
=========================
*/
void RemoveObj (objtype *gone)
{
objtype **spotat;
if (gone == player)
Quit ("RemoveObj: Tried to remove the player!");
//
// fix the next object's back link
//
if (gone == lastobj)
lastobj = (objtype *)gone->prev;
else
gone->next->prev = gone->prev;
//
// fix the previous object's forward link
//
gone->prev->next = gone->next;
//
// add it back in to the free list
//
gone->prev = objfreelist;
objfreelist = gone;
objectcount--;
}
#if USE_INERT_LIST
//--------------------------------------------------------------------------
// MoveObjToInert()
//--------------------------------------------------------------------------
void MoveObjToInert(objtype *obj)
{
if (inert == &inertobjlist[MAXINERTOBJ])
return;
// Transfer info needed by inert objtype
//
inert->x = obj->x;
inert->y = obj->y;
inert->size = obj->size;
inert->viewx = obj->viewx;
inert->tilex = obj->tilex;
inert->tiley = obj->tiley;
inert->state = obj->state;
inert->ticcount = obj->ticcount;
// Setup links between inert objects
//
if (inert != inertobjlist)
(inert-1)->next = inert;
inert->next = NULL;
inert++;
// Free 'real' object from list.
//
RemoveObj(obj);
}
#endif
//==========================================================================
/*
===================
=
= PollControls
=
===================
*/
void PollControls (void)
{
unsigned buttons;
IN_ReadControl(0,&control);
if (MousePresent)
{
Mouse(MButtons);
buttons = _BX;
Mouse(MDelta);
mousexmove = _CX;
mouseymove = _DX;
if (buttons&1)
control.button0 = 1;
if (buttons&2)
control.button1 = 1;
}
if (Keyboard[sc_V] || Keyboard[sc_Tab])
running = true;
else
running = false;
}
//==========================================================================
#if 0
/*
=================
=
= StopMusic
=
=================
*/
void StopMusic(void)
{
int i;
SD_MusicOff();
for (i = 0;i < LASTMUSIC;i++)
if (audiosegs[STARTMUSIC + i])
{
MM_SetPurge(&((memptr)audiosegs[STARTMUSIC + i]),3);
MM_SetLock(&((memptr)audiosegs[STARTMUSIC + i]),false);
}
}
//==========================================================================
/*
=================
=
= StartMusic
=
=================
*/
// JAB - Cache & start the appropriate music for this level
void StartMusic(void)
{
musicnames chunk;
SD_MusicOff();
chunk = TOOHOT_MUS;
// if ((chunk == -1) || (MusicMode != smm_AdLib))
//DEBUG control panel return;
MM_BombOnError (false);
CA_CacheAudioChunk(STARTMUSIC + chunk);
MM_BombOnError (true);
if (mmerror)
mmerror = false;
else
{
MM_SetLock(&((memptr)audiosegs[STARTMUSIC + chunk]),true);
SD_StartMusic((MusicGroup far *)audiosegs[STARTMUSIC + chunk]);
}
}
#endif
//==========================================================================
/*
===================
=
= PlayLoop
=
===================
*/
void PlayLoop (void)
{
char shot_color[3] = {4,9,14};
int allgems[5]={GEM_DELAY_TIME, // used for Q & D comparison
GEM_DELAY_TIME, // for having all gems...
GEM_DELAY_TIME, // the "allgems" declaration MUST
GEM_DELAY_TIME, // match the "gems" declaration in
GEM_DELAY_TIME // the gametype structure!
};
// int originx=0;
// int i=100;
signed long dx,dy,radius,psin,pcos,newx,newy;
int give;
short objnum;
signed long ox,oy,xl,xh,yl,yh,px,py,norm_dx,norm_dy;
short o_radius;
void (*think)();
ingame = true;
playstate = TimeCount = 0;
gamestate.shotpower = handheight = 0;
pointcount = pointsleft = 0;
status_flag = S_NONE;
#if 0
// setup sky/ground colors and effects (based on level)
//
switch (gamestate.mapon)
{
case 255:
if (!(BGFLAGS & BGF_NIGHT))
{
InitBgChange(3*60,sky_daytonight,-1,NULL,BGF_NIGHT);
groundcolor = &gnd_colors[0];
}
else
{
skycolor = &sky_colors[0];
groundcolor = &gnd_colors[0];
}
break;
default:
skycolor = &sky_colors[gamestate.mapon];
groundcolor = &gnd_colors[gamestate.mapon];
skytimer = groundtimer = -1;
break;
}
#endif
BGFLAGS |= BGF_NOT_LIGHTNING;
skytimer = groundtimer = -1;
debug_gnd = *groundcolor;
debug_sky = *skycolor;
RedrawStatusWindow();
ThreeDRefresh();
if (screenfaded)
VW_FadeIn();
#ifndef PROFILE
fizzlein = true; // fizzle fade in the first refresh
#endif
TimeCount = lasttimecount = lastnuke = 0;
PollControls (); // center mouse
// StartMusic ();
do
{
#ifndef PROFILE
PollControls();
#else
control.xaxis = 1;
if (++TimeCount == 300)
return;
#endif
DisplayStatus(&status_flag);
objnum=0;
for (obj = player;obj;obj = obj->next)
{
if ((obj->active >= yes) && (!(FreezeTime && (obj!=player))))
{
if (obj->ticcount)
{
obj->ticcount-=realtics;
while ( obj->ticcount <= 0)
{
think = obj->state->think;
if (think)
{
statetype *oldstate=obj->state;
think (obj);
if (!obj->state)
{
RemoveObj (obj);
goto nextactor;
}
if (obj->state != oldstate)
break;
}
obj->state = obj->state->next;
if (!obj->state)
{
RemoveObj (obj);
goto nextactor;
}
if (!obj->state->tictime)
{
obj->ticcount = 0;
goto nextactor;
}
if (obj->state->tictime>0)
obj->ticcount += obj->state->tictime;
}
}
think = obj->state->think;
if (think)
{
think (obj);
if (!obj->state)
RemoveObj (obj);
}
nextactor:;
}
// keep a list of objects around the player for radar updates
//
if (obj == player)
{
px = player->x;
py = player->y;
psin = sintable[player->angle];
pcos = costable[player->angle];
xl = px-((long)RADAR_WIDTH<<TILESHIFT)/2;
xh = px+((long)RADAR_WIDTH<<TILESHIFT)/2-1;
yl = py-((long)RADAR_HEIGHT<<TILESHIFT)/2;
yh = py+((long)RADAR_HEIGHT<<TILESHIFT)/2;
}
if (objnum > MAX_RADAR_BLIPS-2)
objnum = MAX_RADAR_BLIPS-2;
ox = obj->x;
oy = obj->y;
if ((ox >= xl) && (ox <= xh) && (oy >= yl) && (oy <= yh))
{
norm_dx = (dx = px-ox)>>TILESHIFT;
norm_dy = (dy = oy-py)>>TILESHIFT;
o_radius = IntSqrt((norm_dx * norm_dx) + (norm_dy * norm_dy));
if (o_radius < RADAR_RADIUS)
{
newx = FixedByFrac(dy,pcos)-FixedByFrac(dx,psin);
newy = FixedByFrac(dy,psin)+FixedByFrac(dx,pcos);
RadarXY[objnum][0]=newx>>TILESHIFT;
RadarXY[objnum][1]=newy>>TILESHIFT;
// Define color to use for this object...
//
switch (obj->obclass)
{
// NO GEM NEEDED
//
// THE WIZARD! (YOU)
//
case playerobj:
RadarXY[objnum++][2]=15;
break;
// WIZARD'S SHOTS
//
case bounceobj:
case pshotobj:
case bigpshotobj:
RadarXY[objnum++][2]=shot_color[screenpage];
break;
// RED GEM
//
// STOMPY (DK RED)
//
case invisdudeobj:
case stompyobj:
if (gamestate.gems[B_RGEM-B_RGEM])
if (obj->active == always)
RadarXY[objnum++][2]=4;
break;
// BLOB (LT RED)
//
case blobobj:
if (gamestate.gems[B_RGEM-B_RGEM])
if (obj->active == always)
RadarXY[objnum++][2]=12;
break;
// BLUE GEM
//
// ROBOTANK (LT BLUE)
//
case robotankobj:
case fmageobj:
if (gamestate.gems[B_BGEM-B_RGEM])
if (obj->active == always)
RadarXY[objnum++][2]=9;
break;
#if 1
// BLUE DEMON (DK BLUE)
//
case demonobj:
if (gamestate.gems[B_GGEM-B_RGEM])
if (obj->active == always)
RadarXY[objnum++][2]=1;
break;
#endif
// GREEN GEM
//
// WIZARD (LT GREEN)
//
case wizardobj:
if (gamestate.gems[B_GGEM-B_RGEM])
if (obj->active == always)
RadarXY[objnum++][2]=10;
break;
// AQUA MAN (DK GREEN)
//
case aquamanobj:
if (gamestate.gems[B_GGEM-B_RGEM])
if (obj->active == always)