// Emacs style mode select   -*- C++ -*- 
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
// $Log:$
//
// DESCRIPTION: Door animation code (opening/closing)
//
//-----------------------------------------------------------------------------

static const char
rcsid[] = "$Id: p_doors.c,v 1.4 1997/02/03 16:47:53 b1 Exp $";


#include "z_zone.h"
#include "doomdef.h"
#include "p_local.h"

#include "s_sound.h"


// State.
#include "doomstat.h"
#include "r_state.h"

// Data.
#include "dstrings.h"
#include "sounds.h"


//
// VERTICAL DOORS
//

//
// T_VerticalDoor
//
void T_VerticalDoor (void *_door, void*)
{
    vldoor_t *door = (vldoor_t*)_door;
    result_e	res;
	
    switch(door->direction)
    {
      case 0:
	// WAITING
	if (!--door->topcountdown)
	{
	    switch(door->type)
	    {
	      case BlazeRaise:
		door->direction = -1; // time to go back down
		S_StartSound((mobj_t *)&door->sector->soundorg,
			     sfx_bdcls);
		break;
		
	      case Normal:
		door->direction = -1; // time to go back down
		S_StartSound((mobj_t *)&door->sector->soundorg,
			     sfx_dorcls);
		break;
		
	      case Close30ThenOpen:
		door->direction = 1;
		S_StartSound((mobj_t *)&door->sector->soundorg,
			     sfx_doropn);
		break;
		
	      default:
		break;
	    }
	}
	break;
	
      case 2:
	//  INITIAL WAIT
	if (!--door->topcountdown)
	{
	    switch(door->type)
	    {
	      case RaiseIn5Mins:
		door->direction = 1;
		door->type = Normal;
		S_StartSound((mobj_t *)&door->sector->soundorg,
			     sfx_doropn);
		break;
		
	      default:
		break;
	    }
	}
	break;
	
      case -1:
	// DOWN
	res = T_MovePlane(door->sector,
			  door->speed,
			  door->sector->floorheight,
			  false,1,door->direction);
	if (res == pastdest)
	{
	    switch(door->type)
	    {
	      case BlazeRaise:
	      case BlazeClose:
		door->sector->specialdata = NULL;
		P_RemoveThinker (&door->thinker);  // unlink and free
		S_StartSound((mobj_t *)&door->sector->soundorg,
			     sfx_bdcls);
		break;
		
	      case Normal:
	      case Close:
		door->sector->specialdata = NULL;
		P_RemoveThinker (&door->thinker);  // unlink and free
		break;
		
	      case Close30ThenOpen:
		door->direction = 0;
		door->topcountdown = 35*30;
		break;
		
	      default:
		break;
	    }
	}
	else if (res == crushed)
	{
	    switch(door->type)
	    {
	      case BlazeClose:
	      case Close:		// DO NOT GO BACK UP!
		break;
		
	      default:
		door->direction = 1;
		S_StartSound((mobj_t *)&door->sector->soundorg,
			     sfx_doropn);
		break;
	    }
	}
	break;
	
      case 1:
	// UP
	res = T_MovePlane(door->sector,
			  door->speed,
			  door->topheight,
			  false,1,door->direction);
	
	if (res == pastdest)
	{
	    switch(door->type)
	    {
	      case BlazeRaise:
	      case Normal:
		door->direction = 0; // wait at top
		door->topcountdown = door->topwait;
		break;
		
	      case Close30ThenOpen:
	      case BlazeOpen:
	      case Open:
		door->sector->specialdata = NULL;
		P_RemoveThinker (&door->thinker);  // unlink and free
		break;
		
	      default:
		break;
	    }
	}
	break;
    }
}


//
// EV_DoLockedDoor
// Move a locked door up/down
//

int
EV_DoLockedDoor
( line_t*	line,
  vldoor_e	type,
  mobj_t*	thing )
{
    player_t*	p;
	
    p = thing->player;
	
    if (!p)
	return 0;
		
    switch(line->special)
    {
      case 99:	// Blue Lock
      case 133:
	if ( !p )
	    return 0;
	if (!p->cards[it_bluecard] && !p->cards[it_blueskull])
	{
	    p->message = PD_BLUEO;
	    S_StartSound(NULL,sfx_oof);
	    return 0;
	}
	break;
	
      case 134: // Red Lock
      case 135:
	if ( !p )
	    return 0;
	if (!p->cards[it_redcard] && !p->cards[it_redskull])
	{
	    p->message = PD_REDO;
	    S_StartSound(NULL,sfx_oof);
	    return 0;
	}
	break;
	
      case 136:	// Yellow Lock
      case 137:
	if ( !p )
	    return 0;
	if (!p->cards[it_yellowcard] &&
	    !p->cards[it_yellowskull])
	{
	    p->message = PD_YELLOWO;
	    S_StartSound(NULL,sfx_oof);
	    return 0;
	}
	break;	
    }

    return EV_DoDoor(line,type);
}


int
EV_DoDoor
( line_t*	line,
  vldoor_e	type )
{
    int		secnum,rtn;
    sector_t*	sec;
    vldoor_t*	door;
	
    secnum = -1;
    rtn = 0;
    
    while ((secnum = P_FindSectorFromLineTag(line,secnum)) >= 0)
    {
	sec = &sectors[secnum];
	if (sec->specialdata)
	    continue;
		
	
	// new door thinker
	rtn = 1;
	door = Z_Malloc (sizeof(*door), PU_LEVSPEC, 0);
	P_AddThinker (&door->thinker);
	sec->specialdata = door;

	door->thinker.function = T_VerticalDoor;
	door->sector = sec;
	door->type = type;
	door->topwait = VDOORWAIT;
	door->speed = VDOORSPEED;
		
	switch(type)
	{
	  case BlazeClose:
	    door->topheight = P_FindLowestCeilingSurrounding(sec);
	    door->topheight -= 4*FRACUNIT;
	    door->direction = -1;
	    door->speed = VDOORSPEED * 4;
	    S_StartSound((mobj_t *)&door->sector->soundorg,
			 sfx_bdcls);
	    break;
	    
	  case Close:
	    door->topheight = P_FindLowestCeilingSurrounding(sec);
	    door->topheight -= 4*FRACUNIT;
	    door->direction = -1;
	    S_StartSound((mobj_t *)&door->sector->soundorg,
			 sfx_dorcls);
	    break;
	    
	  case Close30ThenOpen:
	    door->topheight = sec->ceilingheight;
	    door->direction = -1;
	    S_StartSound((mobj_t *)&door->sector->soundorg,
			 sfx_dorcls);
	    break;
	    
	  case BlazeRaise:
	  case BlazeOpen:
	    door->direction = 1;
	    door->topheight = P_FindLowestCeilingSurrounding(sec);
	    door->topheight -= 4*FRACUNIT;
	    door->speed = VDOORSPEED * 4;
	    if (door->topheight != sec->ceilingheight)
		S_StartSound((mobj_t *)&door->sector->soundorg,
			     sfx_bdopn);
	    break;
	    
	  case Normal:
	  case Open:
	    door->direction = 1;
	    door->topheight = P_FindLowestCeilingSurrounding(sec);
	    door->topheight -= 4*FRACUNIT;
	    if (door->topheight != sec->ceilingheight)
		S_StartSound((mobj_t *)&door->sector->soundorg,
			     sfx_doropn);
	    break;
	    
	  default:
	    break;
	}
		
    }
    return rtn;
}


//
// EV_VerticalDoor : open a door manually, no tag value
//
void
EV_VerticalDoor
( line_t*	line,
  mobj_t*	thing )
{
    player_t*	player;
    sector_t*	sec;
    vldoor_t*	door;
    int		side;
	
    side = 0;	// only front sides can be used

    //	Check for locks
    player = thing->player;
		
    switch(line->special)
    {
      case 26: // Blue Lock
      case 32:
	if ( !player )
	    return;
	
	if (!player->cards[it_bluecard] && !player->cards[it_blueskull])
	{
	    player->message = PD_BLUEK;
	    S_StartSound(NULL,sfx_oof);
	    return;
	}
	break;
	
      case 27: // Yellow Lock
      case 34:
	if ( !player )
	    return;
	
	if (!player->cards[it_yellowcard] &&
	    !player->cards[it_yellowskull])
	{
	    player->message = PD_YELLOWK;
	    S_StartSound(NULL,sfx_oof);
	    return;
	}
	break;
	
      case 28: // Red Lock
      case 33:
	if ( !player )
	    return;
	
	if (!player->cards[it_redcard] && !player->cards[it_redskull])
	{
	    player->message = PD_REDK;
	    S_StartSound(NULL,sfx_oof);
	    return;
	}
	break;
    }
	
    // if the sector has an active thinker, use it
    sec = sides[ line->sidenum[side^1]] .sector;

    if (sec->specialdata)
    {
	door = sec->specialdata;
	switch(line->special)
	{
	  case	1: // ONLY FOR "RAISE" DOORS, NOT "OPEN"s
	  case	26:
	  case	27:
	  case	28:
	  case	117:
	    if (door->direction == -1)
		door->direction = 1;	// go back up
	    else
	    {
		if (!thing->player)
		    return;		// JDC: bad guys never close doors
		
		door->direction = -1;	// start going down immediately
	    }
	    return;
	}
    }
	
    // for proper sound
    switch(line->special)
    {
      case 117:	// BLAZING DOOR RAISE
      case 118:	// BLAZING DOOR OPEN
	S_StartSound((mobj_t *)&sec->soundorg,sfx_bdopn);
	break;
	
      case 1:	// NORMAL DOOR SOUND
      case 31:
	S_StartSound((mobj_t *)&sec->soundorg,sfx_doropn);
	break;
	
      default:	// LOCKED DOOR SOUND
	S_StartSound((mobj_t *)&sec->soundorg,sfx_doropn);
	break;
    }
	
    
    // new door thinker
    door = Z_Malloc (sizeof(*door), PU_LEVSPEC, 0);
    P_AddThinker (&door->thinker);
    sec->specialdata = door;
    door->thinker.function = T_VerticalDoor;
    door->sector = sec;
    door->direction = 1;
    door->speed = VDOORSPEED;
    door->topwait = VDOORWAIT;

    switch(line->special)
    {
      case 1:
      case 26:
      case 27:
      case 28:
	door->type = Normal;
	break;
	
      case 31:
      case 32:
      case 33:
      case 34:
	door->type = Open;
	line->special = 0;
	break;
	
      case 117:	// blazing door raise
	door->type = BlazeRaise;
	door->speed = VDOORSPEED*4;
	break;
      case 118:	// blazing door open
	door->type = BlazeOpen;
	line->special = 0;
	door->speed = VDOORSPEED*4;
	break;
    }
    
    // find the top and bottom of the movement range
    door->topheight = P_FindLowestCeilingSurrounding(sec);
    door->topheight -= 4*FRACUNIT;
}


//
// Spawn a door that closes after 30 seconds
//
void P_SpawnDoorCloseIn30 (sector_t* sec)
{
    vldoor_t*	door;
	
    door = Z_Malloc ( sizeof(*door), PU_LEVSPEC, 0);

    P_AddThinker (&door->thinker);

    sec->specialdata = door;
    sec->special = 0;

    door->thinker.function = T_VerticalDoor;
    door->sector = sec;
    door->direction = 0;
    door->type = Normal;
    door->speed = VDOORSPEED;
    door->topcountdown = 30 * 35;
}

//
// Spawn a door that opens after 5 minutes
//
void
P_SpawnDoorRaiseIn5Mins
( sector_t*	sec )
{
    vldoor_t*	door;
	
    door = Z_Malloc ( sizeof(*door), PU_LEVSPEC, 0);
    
    P_AddThinker (&door->thinker);

    sec->specialdata = door;
    sec->special = 0;

    door->thinker.function = T_VerticalDoor;
    door->sector = sec;
    door->direction = 2;
    door->type = RaiseIn5Mins;
    door->speed = VDOORSPEED;
    door->topheight = P_FindLowestCeilingSurrounding(sec);
    door->topheight -= 4*FRACUNIT;
    door->topwait = VDOORWAIT;
    door->topcountdown = 5 * 60 * 35;
}