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a7e02fc92f
libretro-wolfenstein3d/wl_act1.c
twinaphex a7e02fc92f Convert codebase back to C
2015-03-24 18:46:48 +01:00

855 lines
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// WL_ACT1.C
#include "wl_def.h"
#pragma hdrstop
/*
=============================================================================
STATICS
=============================================================================
*/
statobj_t statobjlist[MAXSTATS];
statobj_t *laststatobj;
struct
{
short picnum;
wl_stat_t type;
uint32_t specialFlags; // they are ORed to the statobj_t flags
} statinfo[] =
{
{SPR_STAT_0}, // puddle spr1v
{SPR_STAT_1,block}, // Green Barrel "
{SPR_STAT_2,block}, // Table/chairs "
{SPR_STAT_3,block,FL_FULLBRIGHT}, // Floor lamp "
{SPR_STAT_4,none,FL_FULLBRIGHT}, // Chandelier "
{SPR_STAT_5,block}, // Hanged man "
{SPR_STAT_6,bo_alpo}, // Bad food "
{SPR_STAT_7,block}, // Red pillar "
//
// NEW PAGE
//
{SPR_STAT_8,block}, // Tree spr2v
{SPR_STAT_9}, // Skeleton flat "
{SPR_STAT_10,block}, // Sink " (SOD:gibs)
{SPR_STAT_11,block}, // Potted plant "
{SPR_STAT_12,block}, // Urn "
{SPR_STAT_13,block}, // Bare table "
{SPR_STAT_14,none,FL_FULLBRIGHT}, // Ceiling light "
#ifndef SPEAR
{SPR_STAT_15}, // Kitchen stuff "
#else
{SPR_STAT_15,block}, // Gibs!
#endif
//
// NEW PAGE
//
{SPR_STAT_16,block}, // suit of armor spr3v
{SPR_STAT_17,block}, // Hanging cage "
{SPR_STAT_18,block}, // SkeletoninCage "
{SPR_STAT_19}, // Skeleton relax "
{SPR_STAT_20,bo_key1}, // Key 1 "
{SPR_STAT_21,bo_key2}, // Key 2 "
{SPR_STAT_22,block}, // stuff (SOD:gibs)
{SPR_STAT_23}, // stuff
//
// NEW PAGE
//
{SPR_STAT_24,bo_food}, // Good food spr4v
{SPR_STAT_25,bo_firstaid}, // First aid "
{SPR_STAT_26,bo_clip}, // Clip "
{SPR_STAT_27,bo_machinegun}, // Machine gun "
{SPR_STAT_28,bo_chaingun}, // Gatling gun "
{SPR_STAT_29,bo_cross}, // Cross "
{SPR_STAT_30,bo_chalice}, // Chalice "
{SPR_STAT_31,bo_bible}, // Bible "
//
// NEW PAGE
//
{SPR_STAT_32,bo_crown}, // crown spr5v
{SPR_STAT_33,bo_fullheal,FL_FULLBRIGHT},// one up "
{SPR_STAT_34,bo_gibs}, // gibs "
{SPR_STAT_35,block}, // barrel "
{SPR_STAT_36,block}, // well "
{SPR_STAT_37,block}, // Empty well "
{SPR_STAT_38,bo_gibs}, // Gibs 2 "
{SPR_STAT_39,block}, // flag "
//
// NEW PAGE
//
#ifndef SPEAR
{SPR_STAT_40,block}, // Call Apogee spr7v
#else
{SPR_STAT_40}, // Red light
#endif
//
// NEW PAGE
//
{SPR_STAT_41}, // junk "
{SPR_STAT_42}, // junk "
{SPR_STAT_43}, // junk "
#ifndef SPEAR
{SPR_STAT_44}, // pots "
#else
{SPR_STAT_44,block}, // Gibs!
#endif
{SPR_STAT_45,block}, // stove " (SOD:gibs)
{SPR_STAT_46,block}, // spears " (SOD:gibs)
{SPR_STAT_47}, // vines "
//
// NEW PAGE
//
#ifdef SPEAR
{SPR_STAT_48,block}, // marble pillar
{SPR_STAT_49,bo_25clip}, // bonus 25 clip
{SPR_STAT_50,block}, // truck
{SPR_STAT_51,bo_spear}, // SPEAR OF DESTINY!
#endif
{SPR_STAT_26,bo_clip2}, // Clip "
{-1} // terminator
};
/*
===============
=
= InitStaticList
=
===============
*/
void InitStaticList (void)
{
laststatobj = &statobjlist[0];
}
/*
===============
=
= SpawnStatic
=
===============
*/
void SpawnStatic (int tilex, int tiley, int type)
{
laststatobj->shapenum = statinfo[type].picnum;
laststatobj->tilex = tilex;
laststatobj->tiley = tiley;
laststatobj->visspot = &spotvis[tilex][tiley];
switch (statinfo[type].type)
{
case block:
actorat[tilex][tiley] = (objtype *) 64; // consider it a blocking tile
case none:
laststatobj->flags = 0;
break;
case bo_cross:
case bo_chalice:
case bo_bible:
case bo_crown:
case bo_fullheal:
if (!loadedgame)
gamestate.treasuretotal++;
case bo_firstaid:
case bo_key1:
case bo_key2:
case bo_key3:
case bo_key4:
case bo_clip:
case bo_25clip:
case bo_machinegun:
case bo_chaingun:
case bo_food:
case bo_alpo:
case bo_gibs:
case bo_spear:
laststatobj->flags = FL_BONUS;
laststatobj->itemnumber = statinfo[type].type;
break;
}
laststatobj->flags |= statinfo[type].specialFlags;
laststatobj++;
if (laststatobj == &statobjlist[MAXSTATS])
Quit ("Too many static objects!\n");
}
/*
===============
=
= PlaceItemType
=
= Called during game play to drop actors' items. It finds the proper
= item number based on the item type (bo_???). If there are no free item
= spots, nothing is done.
=
===============
*/
void PlaceItemType (int itemtype, int tilex, int tiley)
{
int type;
statobj_t *spot;
//
// find the item number
//
for (type=0; ; type++)
{
if (statinfo[type].picnum == -1) // end of list
Quit ("PlaceItemType: couldn't find type!");
if (statinfo[type].type == itemtype)
break;
}
//
// find a spot in statobjlist to put it in
//
for (spot=&statobjlist[0]; ; spot++)
{
if (spot==laststatobj)
{
if (spot == &statobjlist[MAXSTATS])
return; // no free spots
laststatobj++; // space at end
break;
}
if (spot->shapenum == -1) // -1 is a free spot
break;
}
//
// place it
//
spot->shapenum = statinfo[type].picnum;
spot->tilex = tilex;
spot->tiley = tiley;
spot->visspot = &spotvis[tilex][tiley];
spot->flags = FL_BONUS | statinfo[type].specialFlags;
spot->itemnumber = statinfo[type].type;
}
/*
=============================================================================
DOORS
doorobjlist[] holds most of the information for the doors
doorposition[] holds the amount the door is open, ranging from 0 to 0xffff
this is directly accessed by AsmRefresh during rendering
The number of doors is limited to 64 because a spot in tilemap holds the
door number in the low 6 bits, with the high bit meaning a door center
and bit 6 meaning a door side tile
Open doors conect two areas, so sounds will travel between them and sight
will be checked when the player is in a connected area.
Areaconnect is incremented/decremented by each door. If >0 they connect
Every time a door opens or closes the areabyplayer matrix gets recalculated.
An area is true if it connects with the player's current spor.
=============================================================================
*/
#define DOORWIDTH 0x7800
#define OPENTICS 300
doorobj_t doorobjlist[MAXDOORS],*lastdoorobj;
short doornum;
word doorposition[MAXDOORS]; // leading edge of door 0=closed
// 0xffff = fully open
byte areaconnect[NUMAREAS][NUMAREAS];
boolean areabyplayer[NUMAREAS];
/*
==============
=
= ConnectAreas
=
= Scans outward from playerarea, marking all connected areas
=
==============
*/
void RecursiveConnect (int areanumber)
{
int i;
for (i=0;i<NUMAREAS;i++)
{
if (areaconnect[areanumber][i] && !areabyplayer[i])
{
areabyplayer[i] = true;
RecursiveConnect (i);
}
}
}
void ConnectAreas (void)
{
memset (areabyplayer,0,sizeof(areabyplayer));
areabyplayer[player->areanumber] = true;
RecursiveConnect (player->areanumber);
}
void InitAreas (void)
{
memset (areabyplayer,0,sizeof(areabyplayer));
if (player->areanumber < NUMAREAS)
areabyplayer[player->areanumber] = true;
}
/*
===============
=
= InitDoorList
=
===============
*/
void InitDoorList (void)
{
memset (areabyplayer,0,sizeof(areabyplayer));
memset (areaconnect,0,sizeof(areaconnect));
lastdoorobj = &doorobjlist[0];
doornum = 0;
}
/*
===============
=
= SpawnDoor
=
===============
*/
void SpawnDoor (int tilex, int tiley, boolean vertical, int lock)
{
word *map;
if (doornum==MAXDOORS)
Quit ("64+ doors on level!");
doorposition[doornum] = 0; // doors start out fully closed
lastdoorobj->tilex = tilex;
lastdoorobj->tiley = tiley;
lastdoorobj->vertical = vertical;
lastdoorobj->lock = lock;
lastdoorobj->action = dr_closed;
actorat[tilex][tiley] = (objtype *)(uintptr_t)(doornum | 0x80); // consider it a solid wall
//
// make the door tile a special tile, and mark the adjacent tiles
// for door sides
//
tilemap[tilex][tiley] = doornum | 0x80;
map = mapsegs[0] + (tiley<<mapshift) +tilex;
if (vertical)
{
*map = *(map-1); // set area number
tilemap[tilex][tiley-1] |= 0x40;
tilemap[tilex][tiley+1] |= 0x40;
}
else
{
*map = *(map-mapwidth); // set area number
tilemap[tilex-1][tiley] |= 0x40;
tilemap[tilex+1][tiley] |= 0x40;
}
doornum++;
lastdoorobj++;
}
//===========================================================================
/*
=====================
=
= OpenDoor
=
=====================
*/
void OpenDoor (int door)
{
if (doorobjlist[door].action == dr_open)
doorobjlist[door].ticcount = 0; // reset open time
else
doorobjlist[door].action = dr_opening; // start it opening
}
/*
=====================
=
= CloseDoor
=
=====================
*/
void CloseDoor (int door)
{
int tilex,tiley,area;
objtype *check;
//
// don't close on anything solid
//
tilex = doorobjlist[door].tilex;
tiley = doorobjlist[door].tiley;
if (actorat[tilex][tiley])
return;
if (player->tilex == tilex && player->tiley == tiley)
return;
if (doorobjlist[door].vertical)
{
if ( player->tiley == tiley )
{
if ( ((player->x+MINDIST) >>TILESHIFT) == tilex )
return;
if ( ((player->x-MINDIST) >>TILESHIFT) == tilex )
return;
}
check = actorat[tilex-1][tiley];
if (ISPOINTER(check) && ((check->x+MINDIST) >> TILESHIFT) == tilex )
return;
check = actorat[tilex+1][tiley];
if (ISPOINTER(check) && ((check->x-MINDIST) >> TILESHIFT) == tilex )
return;
}
else if (!doorobjlist[door].vertical)
{
if (player->tilex == tilex)
{
if ( ((player->y+MINDIST) >>TILESHIFT) == tiley )
return;
if ( ((player->y-MINDIST) >>TILESHIFT) == tiley )
return;
}
check = actorat[tilex][tiley-1];
if (ISPOINTER(check) && ((check->y+MINDIST) >> TILESHIFT) == tiley )
return;
check = actorat[tilex][tiley+1];
if (ISPOINTER(check) && ((check->y-MINDIST) >> TILESHIFT) == tiley )
return;
}
//
// play door sound if in a connected area
//
area = *(mapsegs[0] + (doorobjlist[door].tiley<<mapshift)
+doorobjlist[door].tilex)-AREATILE;
if (areabyplayer[area])
{
PlaySoundLocTile(CLOSEDOORSND,doorobjlist[door].tilex,doorobjlist[door].tiley); // JAB
}
doorobjlist[door].action = dr_closing;
//
// make the door space solid
//
actorat[tilex][tiley] = (objtype *)(uintptr_t)(door | 0x80);
}
/*
=====================
=
= OperateDoor
=
= The player wants to change the door's direction
=
=====================
*/
void OperateDoor (int door)
{
int lock;
lock = doorobjlist[door].lock;
if (lock >= dr_lock1 && lock <= dr_lock4)
{
if ( ! (gamestate.keys & (1 << (lock-dr_lock1) ) ) )
{
SD_PlaySound (NOWAYSND); // locked
return;
}
}
switch (doorobjlist[door].action)
{
case dr_closed:
case dr_closing:
OpenDoor (door);
break;
case dr_open:
case dr_opening:
CloseDoor (door);
break;
}
}
//===========================================================================
/*
===============
=
= DoorOpen
=
= Close the door after three seconds
=
===============
*/
void DoorOpen (int door)
{
if ( (doorobjlist[door].ticcount += (short) tics) >= OPENTICS)
CloseDoor (door);
}
/*
===============
=
= DoorOpening
=
===============
*/
void DoorOpening (int door)
{
unsigned area1,area2;
word *map;
int32_t position;
position = doorposition[door];
if (!position)
{
//
// door is just starting to open, so connect the areas
//
map = mapsegs[0] + (doorobjlist[door].tiley<<mapshift)
+doorobjlist[door].tilex;
if (doorobjlist[door].vertical)
{
area1 = *(map+1);
area2 = *(map-1);
}
else
{
area1 = *(map-mapwidth);
area2 = *(map+mapwidth);
}
area1 -= AREATILE;
area2 -= AREATILE;
if (area1 < NUMAREAS && area2 < NUMAREAS)
{
areaconnect[area1][area2]++;
areaconnect[area2][area1]++;
if (player->areanumber < NUMAREAS)
ConnectAreas ();
if (areabyplayer[area1])
PlaySoundLocTile(OPENDOORSND,doorobjlist[door].tilex,doorobjlist[door].tiley); // JAB
}
}
//
// slide the door by an adaptive amount
//
position += tics<<10;
if (position >= 0xffff)
{
//
// door is all the way open
//
position = 0xffff;
doorobjlist[door].ticcount = 0;
doorobjlist[door].action = dr_open;
actorat[doorobjlist[door].tilex][doorobjlist[door].tiley] = 0;
}
doorposition[door] = (word) position;
}
/*
===============
=
= DoorClosing
=
===============
*/
void DoorClosing (int door)
{
unsigned area1,area2;
word *map;
int32_t position;
int tilex,tiley;
tilex = doorobjlist[door].tilex;
tiley = doorobjlist[door].tiley;
if ( ((int)(uintptr_t)actorat[tilex][tiley] != (door | 0x80))
|| (player->tilex == tilex && player->tiley == tiley) )
{ // something got inside the door
OpenDoor (door);
return;
};
position = doorposition[door];
//
// slide the door by an adaptive amount
//
position -= tics<<10;
if (position <= 0)
{
//
// door is closed all the way, so disconnect the areas
//
position = 0;
doorobjlist[door].action = dr_closed;
map = mapsegs[0] + (doorobjlist[door].tiley<<mapshift) + doorobjlist[door].tilex;
if (doorobjlist[door].vertical)
{
area1 = *(map+1);
area2 = *(map-1);
}
else
{
area1 = *(map-mapwidth);
area2 = *(map+mapwidth);
}
area1 -= AREATILE;
area2 -= AREATILE;
if (area1 < NUMAREAS && area2 < NUMAREAS)
{
areaconnect[area1][area2]--;
areaconnect[area2][area1]--;
if (player->areanumber < NUMAREAS)
ConnectAreas ();
}
}
doorposition[door] = (word) position;
}
/*
=====================
=
= MoveDoors
=
= Called from PlayLoop
=
=====================
*/
void MoveDoors (void)
{
int door;
if (gamestate.victoryflag) // don't move door during victory sequence
return;
for (door = 0; door < doornum; door++)
{
switch (doorobjlist[door].action)
{
case dr_open:
DoorOpen (door);
break;
case dr_opening:
DoorOpening(door);
break;
case dr_closing:
DoorClosing(door);
break;
}
}
}
/*
=============================================================================
PUSHABLE WALLS
=============================================================================
*/
word pwallstate;
word pwallpos; // amount a pushable wall has been moved (0-63)
word pwallx,pwally;
byte pwalldir,pwalltile;
int dirs[4][2]={{0,-1},{1,0},{0,1},{-1,0}};
/*
===============
=
= PushWall
=
===============
*/
void PushWall (int checkx, int checky, int dir)
{
int oldtile, dx, dy;
if (pwallstate)
return;
oldtile = tilemap[checkx][checky];
if (!oldtile)
return;
dx = dirs[dir][0];
dy = dirs[dir][1];
if (actorat[checkx+dx][checky+dy])
{
SD_PlaySound (NOWAYSND);
return;
}
actorat[checkx+dx][checky+dy] = (objtype *)(uintptr_t) (tilemap[checkx+dx][checky+dy] = oldtile);
gamestate.secretcount++;
pwallx = checkx;
pwally = checky;
pwalldir = dir;
pwallstate = 1;
pwallpos = 0;
pwalltile = tilemap[pwallx][pwally];
tilemap[pwallx][pwally] = 64;
tilemap[pwallx+dx][pwally+dy] = 64;
*(mapsegs[1]+(pwally<<mapshift)+pwallx) = 0; // remove P tile info
*(mapsegs[0]+(pwally<<mapshift)+pwallx) = *(mapsegs[0]+(player->tiley<<mapshift)+player->tilex); // set correct floorcode (BrotherTank's fix)
SD_PlaySound (PUSHWALLSND);
}
/*
=================
=
= MovePWalls
=
=================
*/
void MovePWalls (void)
{
int oldblock,oldtile;
if (!pwallstate)
return;
oldblock = pwallstate/128;
pwallstate += (word)tics;
if (pwallstate/128 != oldblock)
{
// block crossed into a new block
oldtile = pwalltile;
//
// the tile can now be walked into
//
tilemap[pwallx][pwally] = 0;
actorat[pwallx][pwally] = 0;
*(mapsegs[0]+(pwally<<mapshift)+pwallx) = player->areanumber+AREATILE;
int dx=dirs[pwalldir][0], dy=dirs[pwalldir][1];
//
// see if it should be pushed farther
//
if (pwallstate>=256) // only move two tiles fix
{
//
// the block has been pushed two tiles
//
pwallstate = 0;
tilemap[pwallx+dx][pwally+dy] = oldtile;
return;
}
else
{
int xl,yl,xh,yh;
xl = (player->x-PLAYERSIZE) >> TILESHIFT;
yl = (player->y-PLAYERSIZE) >> TILESHIFT;
xh = (player->x+PLAYERSIZE) >> TILESHIFT;
yh = (player->y+PLAYERSIZE) >> TILESHIFT;
pwallx += dx;
pwally += dy;
if (actorat[pwallx+dx][pwally+dy]
|| xl<=pwallx+dx && pwallx+dx<=xh && yl<=pwally+dy && pwally+dy<=yh)
{
pwallstate = 0;
tilemap[pwallx][pwally] = oldtile;
return;
}
actorat[pwallx+dx][pwally+dy] = (objtype *)(uintptr_t) (tilemap[pwallx+dx][pwally+dy] = oldtile);
tilemap[pwallx+dx][pwally+dy] = 64;
}
}
pwallpos = (pwallstate/2)&63;
}
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