/
p_spec.c
1344 lines (1230 loc) · 34.7 KB
/
p_spec.c
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//-----------------------------------------------------------------------------
//
// Copyright (C) 1993-1996 by id Software, Inc.
// Copyright (C) 2020 by SaladBadger.
//
// 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.
//
//-----------------------------------------------------------------------------
#include "doomdef.h"
#include "p_local.h"
char* alphSwitchList[16] =
{
"COMWALL1", "COMWALL2",
"TH_STSW1", "TH_STSW2",
"BRN96SW1", "BRN96SW2",
"JR_B1SW1", "JR_B1SW2",
"EXITBUTT", "EXITBUT2",
"JR_SW2", "JR_SW2A",
"TH_192GS", "TH_192GT"
};
flatanim_t flatAnims[4] =
{
{"NUKAGE3", "NUKAGE1", 3, 16},
{"SEWAGE3", "SEWAGE1", 3, 32},
{"CONVNA3", "CONVNA1", 3, 16}
};
int numswitches;
int switchlist[100];
anim_t anims[32];
anim_t* lastAnim;
int P_CheckSingleSectorHeights(int sector, int force, int recurse)
{
return 1;
}
int P_CheckSectorHeights(int sector, int force)
{
return 1;
}
int P_FindLowestFloorSurrounding(sector_t* sector, int secnum)
{
short other;
line_t* check;
fixed_t floor;
int i;
floor = INT_MAX;
for (i = 0; i < sector->linecount; i++)
{
check = &lines[sector->lines[i]];
if ((check->flags & ML_TWOSIDED) != 0)
{
if (sides[check->side[0]].sector == secnum)
{
other = sides[check->side[1]].sector;
}
else
{
other = sides[check->side[0]].sector;
}
if (sectors[other].floorheight < floor)
{
floor = sectors[other].floorheight;
}
}
}
return floor;
}
int P_FindHighestFloorSurrounding(sector_t* sector, int secnum)
{
short other;
line_t* check;
fixed_t floor;
int i;
floor = -0x1f40000;
for (i = 0; i < sector->linecount; i++)
{
check = &lines[sector->lines[i]];
if ((check->flags & ML_TWOSIDED) != 0)
{
if ((int)sides[check->side[0]].sector == secnum)
{
other = sides[check->side[1]].sector;
}
else
{
other = sides[check->side[0]].sector;
}
if (floor < sectors[other].floorheight)
{
floor = sectors[other].floorheight;
}
}
}
return floor;
}
int P_FindNextHighestFloor(sector_t* sec, int secnum, int currentheight)
{
short other;
line_t* check;
int i;
i = 0;
do
{
if (sec->linecount <= i)
{
return currentheight;
}
check = &lines[sec->lines[i]];
if ((check->flags & ML_TWOSIDED) != 0)
{
if ((int)sides[check->side[0]].sector == secnum)
{
other = sides[check->side[1]].sector;
}
else
{
other = sides[check->side[0]].sector;
}
if (currentheight < sectors[other].floorheight)
{
return sectors[other].floorheight;
}
}
i++;
} while (1);
}
int P_FindLowestCeilingSurrounding(sector_t* sec, int secnum)
{
short other;
line_t* check;
fixed_t height;
int i;
height = INT_MAX;
for (i = 0; i < sec->linecount; i++)
{
check = &lines[sec->lines[i]];
if ((check->flags & ML_TWOSIDED) != 0)
{
if ((int)sides[check->side[0]].sector == secnum)
{
other = sides[check->side[1]].sector;
}
else
{
other = sides[check->side[0]].sector;
}
if (sectors[other].ceilingheight < height)
{
height = sectors[other].ceilingheight;
}
}
}
return height;
}
void P_MoveThings(int sector, int ymove)
{
thing_t* t;
t = sectors[sector].things;
while (t != NULL)
{
t->z += ymove;
t = t->next;
}
return;
}
int P_FindSectorFromLineTag(line_t* line, int start)
{
int secnum;
secnum = start;
do
{
secnum = secnum + 1;
if (numsectors <= secnum)
{
return -1;
}
} while (sectors[secnum].tag != line->tag);
return secnum;
}
int P_FindMinSurroundingLight(sector_t* sector, int check)
{
int i;
int side;
i = 0;
while (1)
{
if (sector->linecount <= i)
{
return check;
}
if ((lines[sector->lines[i]].flags & ML_TWOSIDED) != 0) break;
i++;
}
side = lines[sector->lines[i]].side[0];
if (sides[side].sector == (sector - sectors))
{
side = lines[sector->lines[i]].side[1];
}
if (check <= sectors[sides[side].sector].lightlevel)
{
return check;
}
return sectors[sides[side].sector].lightlevel;
}
extern int flatstartlump;
void EV_GoopChange(line_t* line, int side)
{
int i;
short floor;
if (side == 0)
{
floor = (short)W_GetNumForName("SEWAGE1");
}
else
{
floor = (short)W_GetNumForName("NUKAGE1");
}
floor = floor - (short)flatstartlump;
for (i = 0; i < numsectors; i++)
{
if (sectors[i].tag == line->tag)
{
sectors[i].floortexture = floor;
}
}
return;
}
void T_MoveFloor(floormove_t* floor)
{
if (floor->direction == 1)
{
floor->sector->floorheight = floor->sector->floorheight + floor->speed;
P_MoveThings(floor->sector - sectors, floor->speed);
if (floor->floordestheight < floor->sector->floorheight)
{
P_MoveThings(floor->sector - sectors, floor->floordestheight - floor->sector->floorheight);
floor->sector->floorheight = floor->floordestheight;
floor->sector->specialdata = 0;
P_RemoveThinker((thinker_t*)floor);
}
}
else if (floor->direction == -1)
{
floor->sector->floorheight = floor->sector->floorheight - floor->speed;
P_MoveThings(floor->sector - sectors, -floor->speed);
if (floor->sector->floorheight < floor->floordestheight)
{
P_MoveThings(floor->sector - sectors, floor->floordestheight - floor->sector->floorheight);
floor->sector->floorheight = floor->floordestheight;
floor->sector->specialdata = 0;
P_RemoveThinker((thinker_t*)floor);
}
}
return;
}
int EV_BuildStairs(line_t* line)
{
short texture;
short newsecnum;
int ok;
floormove_t* floor;
sector_t* sec;
int i;
int height;
int secnum;
int rtn;
rtn = 0;
line->special = 0;
secnum = -1;
while ((secnum = P_FindSectorFromLineTag(line, secnum)) >= 0)
{
sec = §ors[secnum];
if (sec->specialdata != NULL)
continue;
rtn = 1;
height = (sec->floorheight + (8 << FRACBITS));
floor = (floormove_t*)Z_Malloc(playzone, sizeof(floormove_t));
P_AddThinker((thinker_t*)floor);
sec->specialdata = (void*)floor;
floor->thinker.function = &T_MoveFloor;
floor->direction = 1;
floor->sector = sec;
floor->speed = FLOORSPEED >> 2;
floor->floordestheight = height;
texture = sec->floortexture;
do
{
ok = 0;
i = 0;
while (i < sec->linecount)
{
if (((lines[sec->lines[i]].flags & ML_TWOSIDED) != 0) && (secnum == (int)sides[lines[sec->lines[i]].side[0]].sector))
{
newsecnum = sides[lines[sec->lines[i]].side[1]].sector;
sec = §ors[newsecnum];
if (sec->floortexture != texture) break;
height = (void*)((int)height + (8 << FRACBITS));
if (sec->specialdata == NULL)
{
floor = (floormove_t*)Z_Malloc(playzone, sizeof(floormove_t));
P_AddThinker((thinker_t*)floor);
sec->specialdata = (void*)floor;
floor->thinker.function = &T_MoveFloor;
floor->direction = 1;
floor->sector = sec;
floor->speed = FLOORSPEED >> 2;
floor->floordestheight = height;
ok = 1;
secnum = (int)newsecnum;
}
}
i++;
}
} while (ok);
}
return rtn;
}
int EV_RaiseFloorUpToNearest(line_t* line)
{
floormove_t* floor;
int height;
sector_t* sec;
int secnum;
int ret = 0;
line->special = 0;
secnum = -1;
while (secnum = P_FindSectorFromLineTag(line, secnum), -1 < secnum)
{
sec = §ors[secnum];
if (sec->specialdata == NULL)
{
floor = (floormove_t*)Z_Malloc(playzone, sizeof(floormove_t));
P_AddThinker((thinker_t*)floor);
sec->specialdata = (void*)floor;
floor->thinker.function = &T_MoveFloor;
floor->direction = 1;
floor->sector = sec;
floor->speed = FLOORSPEED;
height = P_FindNextHighestFloor(sec, secnum, sec->floorheight);
floor->floordestheight = height;
ret = 1;
}
}
return ret;
}
int EV_RaiseFloor(line_t* line)
{
floormove_t* floor;
int height;
sector_t* sec;
int secnum;
int ret = 0;
line->special = 0;
secnum = -1;
while (secnum = P_FindSectorFromLineTag(line, secnum), -1 < secnum)
{
sec = §ors[secnum];
if (sec->specialdata == NULL)
{
floor = (floormove_t*)Z_Malloc(playzone, sizeof(floormove_t));
P_AddThinker((thinker_t*)floor);
*(floormove_t**)&sec->specialdata = floor;
floor->thinker.function = &T_MoveFloor;
floor->direction = 1;
floor->sector = sec;
floor->speed = FLOORSPEED;
height = P_FindLowestCeilingSurrounding(sec, secnum);
floor->floordestheight = height;
if (sec->ceilingheight < floor->floordestheight)
{
floor->floordestheight = sec->ceilingheight;
}
ret = 1;
}
}
return ret;
}
int EV_LowerFloor(line_t* line)
{
int height;
sector_t* sector;
floormove_t* floor;
int secnum;
int ret = 0;
line->special = 0;
secnum = -1;
while (secnum = P_FindSectorFromLineTag(line, secnum), -1 < secnum)
{
sector = §ors[secnum];
if (sector->specialdata == 0)
{
floor = (floormove_t*)Z_Malloc(playzone, sizeof(floormove_t));
P_AddThinker((thinker_t*)floor);
sector->specialdata = floor;
floor->thinker.function = &T_MoveFloor;
floor->direction = -1;
floor->sector = sector;
floor->speed = FLOORSPEED;
height = P_FindHighestFloorSurrounding(sector, secnum);
floor->floordestheight = height;
ret = 1;
}
}
return ret;
}
void T_VerticalDoor(vldoor_t* door)
{
if (door->direction == -1)
{
if ((door->sector - sectors) == player->r->sector)
{
door->direction = 0;
door->topcountdown = 10;
}
else
{
door->sector->ceilingheight -= door->speed;
if (door->type == normal)
{
if (door->sector->ceilingheight <= door->sector->floorheight)
{
door->sector->ceilingheight = door->sector->floorheight;
door->sector->specialdata = 0;
P_RemoveThinker((thinker_t*)door);
}
}
else if (door->type == close30ThenOpen)
{
if (door->sector->ceilingheight <= door->sector->floorheight)
{
door->sector->ceilingheight = door->sector->floorheight;
door->direction = 0;
door->topcountdown = 2100;
}
}
else if (door->type == close)
{
if ((door->sector->ceilingheight <= door->sector->floorheight))
{
door->sector->ceilingheight = door->sector->floorheight;
door->sector->specialdata = 0;
P_RemoveThinker((thinker_t*)door);
}
}
}
}
else if (door->direction == 0)
{
door->topcountdown--;
if (door->topcountdown == 0)
{
if (door->type == 0)
{
door->direction = -1;
}
else
{
if (door->type == close30ThenOpen)
{
door->direction = 1;
}
}
}
}
else if (door->direction == 1)
{
door->sector->ceilingheight += door->speed;
if (door->type == 0)
{
if (door->topheight <= door->sector->ceilingheight)
{
door->sector->ceilingheight = door->topheight;
door->direction = 0;
door->topcountdown = door->topwait;
}
}
else if (door->type < 2)
{
if (door->topheight <= door->sector->ceilingheight)
{
door->sector->ceilingheight = door->topheight;
door->sector->specialdata = 0;
P_RemoveThinker((thinker_t*)door);
}
}
else if ((door->type == 3))
{
if ((door->topheight <= door->sector->ceilingheight))
{
door->sector->ceilingheight = door->topheight;
door->sector->specialdata = 0;
P_RemoveThinker((thinker_t*)door);
}
}
}
return;
}
int EV_DoDoor(line_t* line, vldoor_e type)
{
vldoor_t* door;
int height;
sector_t* sec;
int secnum;
int ret = 0;
secnum = -1;
do
{
do
{
secnum = P_FindSectorFromLineTag(line, secnum);
if (secnum < 0)
{
return ret;
}
sec = §ors[secnum];
} while (sec->specialdata != 0);
door = (vldoor_t*)Z_Malloc(playzone, sizeof(vldoor_t));
P_AddThinker((thinker_t*)door);
sec->specialdata = (void*)door;
door->thinker.function = &T_VerticalDoor;
door->sector = sec;
if (type == normal || type == open)
{
door->direction = 1;
}
else
{
door->direction = -1;
}
door->type = type;
door->speed = VDOORSPEED;
door->topwait = VDOORWAIT;
height = P_FindLowestCeilingSurrounding(sec, secnum);
door->topheight = height;
door->topheight = door->topheight + -(4 << FRACBITS);
ret = 1;
} while (1);
return ret;
}
void EV_VerticalDoor(line_t* line, int side)
{
short secnum;
vldoor_t* door;
sector_t* sec;
if (line->special == 26)
{
if (!player->items[it_bluecard])
return;
}
else if (line->special == 27)
{
if (!player->items[it_yellowcard])
return;
}
else if (line->special == 28)
{
if (!player->items[it_redcard])
return;
}
secnum = sides[line->side[side ^ 1]].sector;
sec = sectors + (int)secnum;
if (sec->specialdata == NULL)
{
door = (vldoor_t*)Z_Malloc(playzone, sizeof(vldoor_t));
P_AddThinker((thinker_t*)door);
sec->specialdata = door;
door->thinker.function = &T_VerticalDoor;
door->sector = sec;
door->direction = 1;
door->type = 0;
door->speed = VDOORSPEED;
door->topwait = VDOORWAIT;
door->topheight = P_FindLowestCeilingSurrounding(sec, secnum);
door->topheight = door->topheight + -(4 << FRACBITS);
}
else
{
door = (vldoor_t*)sec->specialdata;
if (door->direction == -1)
door->direction = 1;
else
door->direction = -1;
}
return;
}
void T_PlatRaise(plat_t* plat)
{
if (plat->status == up)
{
plat->sector->floorheight = plat->sector->floorheight + plat->speed;
P_MoveThings(plat->sector - sectors, plat->speed);
if (plat->high < plat->sector->floorheight)
{
P_MoveThings(plat->sector - sectors, plat->high - plat->sector->floorheight);
plat->sector->floorheight = plat->high;
plat->count = plat->wait;
plat->status = waiting;
if (plat->type == downWaitUpStay)
{
plat->sector->specialdata = 0;
P_RemoveThinker((thinker_t*)plat);
}
else if (plat->type == raiseAndChange)
{
plat->sector->specialdata = 0;
P_RemoveThinker((thinker_t*)plat);
}
}
}
else if (plat->status == down)
{
plat->sector->floorheight = plat->sector->floorheight - plat->speed;
P_MoveThings(plat->sector - sectors, -plat->speed);
if (plat->sector->floorheight < plat->low)
{
P_MoveThings(plat->sector - sectors, plat->low - plat->sector->floorheight);
plat->sector->floorheight = plat->low;
plat->count = plat->wait;
plat->status = waiting;
}
}
else if ((plat->status == waiting))
{
plat->count--;
if (plat->count == 0)
{
if (plat->sector->floorheight == plat->low)
{
plat->status = up;
}
else
{
plat->status = down;
}
}
}
return;
}
void P_SpawnPlatRaise(sector_t* sector, int secnum)
{
plat_t* plat;
plat = (plat_t*)Z_Malloc(playzone, sizeof(plat_t));
P_AddThinker((thinker_t*)plat);
plat->speed = PLATSPEED;
plat->low = P_FindLowestFloorSurrounding(sector, secnum);
plat->high = P_FindHighestFloorSurrounding(sector, secnum);
plat->wait = PLATWAIT;
plat->sector = sector;
plat->status = D_Rnd() & 1;
plat->thinker.function = &T_PlatRaise;
plat->type = raise;
plat->sector->specialdata = (void*)plat;
sector->special = 0;
return;
}
int EV_RaisePlatUpToNearestFloorAndChange(line_t* line, int side)
{
plat_t* plat;
sector_t* sec;
int secnum;
int rtn = 0;
secnum = -1;
while ((secnum = P_FindSectorFromLineTag(line, secnum)) >= 0)
{
sec = §ors[secnum];
if (sec->specialdata == 0)
{
plat = (plat_t*)Z_Malloc(playzone, sizeof(plat_t));
P_AddThinker((thinker_t*)plat);
plat->speed = PLATSPEED/2;
sec->floortexture = sectors[sides[line->side[side]].sector].floortexture;
plat->high = P_FindNextHighestFloor(sec, secnum, sec->floorheight);
plat->wait = 0;
plat->sector = sec;
plat->status = up;
plat->thinker.function = &T_PlatRaise;
plat->type = raiseAndChange;
plat->sector->specialdata = (void*)plat;
rtn = 1;
}
}
return rtn;
}
int EV_PlatRaiseAndChange(line_t* line, int amount)
{
plat_t* plat;
sector_t* sec;
int rtn;
int secnum;
secnum = -1;
rtn = 0;
while ((secnum = P_FindSectorFromLineTag(line, secnum)) >= 0)
{
sec = §ors[secnum];
if (sec->specialdata == 0)
{
rtn = 1;
plat = (plat_t*)Z_Malloc(playzone, sizeof(plat_t));
P_AddThinker((thinker_t*)plat);
plat->speed = PLATSPEED / 2;
sec->floortexture = sectors[sides[line->side[0]].sector].floortexture;
plat->high = sec->floorheight + amount * FRACUNIT;
plat->wait = 0;
plat->sector = sec;
plat->status = up;
plat->thinker.function = &T_PlatRaise;
plat->type = raiseAndChange;
plat->sector->specialdata = (void*)plat;
}
}
return rtn;
}
int EV_PlatLowerWaitRaiseStay(line_t* line)
{
plat_t* plat;
sector_t* sector;
int secnum;
int ret = 0;
secnum = -1;
while ((secnum = P_FindSectorFromLineTag(line, secnum)) >= 0)
{
sector = §ors[secnum];
if (sector->specialdata == 0)
{
plat = (plat_t*)Z_Malloc(playzone, sizeof(plat_t));
P_AddThinker((thinker_t*)plat);
plat->speed = PLATSPEED;
plat->low = P_FindLowestFloorSurrounding(sector, secnum);
plat->high = sector->floorheight;
plat->wait = PLATWAIT;
plat->sector = sector;
plat->status = down;
plat->thinker.function = &T_PlatRaise;
plat->type = downWaitUpStay;
plat->sector->specialdata = (void*)plat;
ret = 1;
}
}
return ret;
}
void EV_TurnTagLIghtsOff(line_t* line)
{
short val;
short min;
int i, j;
for (i = 0; i < numsectors; i++)
{
if (sectors[i].tag == line->tag)
{
min = sectors[i].lightlevel;
for (j = 0; j < sector->linecount; j++)
{
if ((lines[sector->lines[j]].flags & ML_TWOSIDED) != 0)
{
if ((int)sides[lines[sector->lines[j]].side[1]].sector == i)
{
val = sectors[sides[lines[sector->lines[j]].side[0]].sector].lightlevel;
}
else
{
val = sectors[sides[lines[sector->lines[j]].side[1]].sector].lightlevel;
}
if (val < min)
{
min = val;
}
}
}
sectors[i].lightlevel = min;
}
}
return;
}
void EV_LightTurnOn(line_t* line, int bright)
{
short val;
int j;
int i;
for (i = 0; i < numsectors; i++)
{
if (sectors[i].tag == line->tag)
{
if (bright == 0)
{
for (j = 0; j < sectors[i].linecount; j++)
{
if ((lines[sectors[i].lines[j]].flags & 4) == 0)
{
if (sides[lines[sectors[i].lines[j]].side[0]].sector == i)
{
val = sectors[sides[lines[sectors[i].lines[j]].side[1]].sector].lightlevel;
}
else
{
val = sectors[sides[lines[sectors[i].lines[j]].side[0]].sector].lightlevel;
}
if (bright < val)
{
bright = val;
}
}
}
}
sectors[i].lightlevel = (short)bright;
}
}
return;
}
void EV_StartLightStrobing(line_t* line);
/*
==============================================================================
EVENTS
Events are operations triggered by using, crossing, or shooting special lines, or by timed thinkers
==============================================================================
*/
/*
===============================================================================
=
= P_PlayerCrossSpecialLine - TRIGGER
=
= Called every ticcount a thing origin is about to cross
= a line with a non 0 special
=
===============================================================================
*/
void P_PlayerCrossSpecialLine(line_t* line)
{
switch (line->special)
{
case 2: // Open Door
EV_DoDoor(line, open);
break;
case 3: // Close Door
EV_DoDoor(line, close);
break;
case 4: // Raise Door
EV_DoDoor(line, normal);
break;
case 5: // Raise Floor
EV_RaiseFloor(line);
break;
case 10: // PlatDownWaitUp
EV_PlatLowerWaitRaiseStay(line);
break;
case 12: // Light Turn On - brightest near
EV_LightTurnOn(line, 0);
break;
case 13: // Light Turn On 255
EV_LightTurnOn(line, 255);
break;
case 16: // Close Door 30
EV_DoDoor(line, close30ThenOpen);
break;
case 17: // Start Light Strobing
EV_StartLightStrobing(line);
break;
case 19: // Lower Floor
EV_LowerFloor(line);
break;
case 22: // Raise floor to nearest height and change texture
EV_RaisePlatUpToNearestFloorAndChange(line, sides[line->side[0]].sector != player->r->sector);
break;
case 104: // Turn lights off in sector(tag)
EV_TurnTagLIghtsOff(line);
break;
case 1000: // EXIT!
gameaction = ga_completed;
break;
}
return;
}
int P_FindTexture(char* string)
{
int i;
i = 0;
while (1)
{
if (numtextures <= i)
{
IO_Error("P_InitSwitchList: Couldn't find %s!",string);
return;
}
if (!strcmp(texturelookup[i], string)) break;
i++;
}
return i;
}
void P_InitSwitchList(void)
{
int i;
i = 0;
while (1)
{
if (i >= 100)
{
return;
}
if (alphSwitchList[i] == NULL) break;
switchlist[i] = P_FindTexture(alphSwitchList[i]);
i++;
}
numswitches = i;
switchlist[i] = -1;
return;
}
void P_ChangeSwitchTexture(line_t* line, int useAgain)
{
int i;
if (useAgain == 0)