mirror of
https://github.com/ZDoom/qzdoom-gpl.git
synced 2024-11-16 09:11:17 +00:00
14a42bbada
SVN r1801 (trunk)
715 lines
19 KiB
C++
715 lines
19 KiB
C++
// Emacs style mode select -*- C++ -*-
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//-----------------------------------------------------------------------------
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//
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// $Id:$
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//
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// Copyright (C) 1993-1996 by id Software, Inc.
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//
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// This source is available for distribution and/or modification
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// only under the terms of the DOOM Source Code License as
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// published by id Software. All rights reserved.
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//
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// The source is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
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// for more details.
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//
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// $Log:$
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//
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// DESCRIPTION:
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// Teleportation.
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//
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//-----------------------------------------------------------------------------
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#include "templates.h"
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#include "doomtype.h"
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#include "doomdef.h"
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#include "s_sound.h"
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#include "p_local.h"
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#include "p_terrain.h"
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#include "r_state.h"
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#include "gi.h"
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#include "a_sharedglobal.h"
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#include "m_random.h"
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#include "i_system.h"
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#include "doomstat.h"
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static FRandom pr_teleport ("Teleport");
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extern void P_CalcHeight (player_t *player);
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CVAR (Bool, telezoom, true, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
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IMPLEMENT_CLASS (ATeleportFog)
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void ATeleportFog::PostBeginPlay ()
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{
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Super::PostBeginPlay ();
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S_Sound (this, CHAN_BODY, "misc/teleport", 1, ATTN_NORM);
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switch (gameinfo.gametype)
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{
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case GAME_Hexen:
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case GAME_Heretic:
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SetState(FindState(NAME_Raven));
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break;
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case GAME_Strife:
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SetState(FindState(NAME_Strife));
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break;
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default:
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break;
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}
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}
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//==========================================================================
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//
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// P_SpawnTeleportFog
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//
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// The beginning of customizable teleport fog
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// (not active yet)
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//
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//==========================================================================
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void P_SpawnTeleportFog(fixed_t x, fixed_t y, fixed_t z, int spawnid)
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{
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const PClass *fog=NULL;
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if (spawnid > 0 && spawnid < MAX_SPAWNABLES && SpawnableThings[spawnid] != NULL)
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{
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fog = SpawnableThings[spawnid];
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}
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if (fog == NULL)
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{
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AActor *mo = Spawn ("TeleportFog", x, y, z + TELEFOGHEIGHT, ALLOW_REPLACE);
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}
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else
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{
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AActor *mo = Spawn (fog, x, y, z, ALLOW_REPLACE);
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if (mo != NULL) S_Sound(mo, CHAN_BODY, mo->SeeSound, 1.f, ATTN_NORM);
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}
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}
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//
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// TELEPORTATION
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//
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bool P_Teleport (AActor *thing, fixed_t x, fixed_t y, fixed_t z, angle_t angle,
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bool useFog, bool sourceFog, bool keepOrientation, bool bHaltVelocity)
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{
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fixed_t oldx;
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fixed_t oldy;
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fixed_t oldz;
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fixed_t aboveFloor;
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player_t *player;
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angle_t an;
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sector_t *destsect;
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bool resetpitch = false;
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fixed_t floorheight, ceilingheight;
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oldx = thing->x;
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oldy = thing->y;
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oldz = thing->z;
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aboveFloor = thing->z - thing->floorz;
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destsect = P_PointInSector (x, y);
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// killough 5/12/98: exclude voodoo dolls:
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player = thing->player;
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if (player && player->mo != thing)
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player = NULL;
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floorheight = destsect->floorplane.ZatPoint (x, y);
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ceilingheight = destsect->ceilingplane.ZatPoint (x, y);
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if (z == ONFLOORZ)
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{
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if (player)
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{
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if (thing->flags & MF_NOGRAVITY && aboveFloor)
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{
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z = floorheight + aboveFloor;
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if (z + thing->height > ceilingheight)
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{
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z = ceilingheight - thing->height;
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}
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}
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else
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{
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z = floorheight;
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if (!keepOrientation)
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{
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resetpitch = false;
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}
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}
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}
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else if (thing->flags & MF_MISSILE)
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{
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z = floorheight + aboveFloor;
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if (z + thing->height > ceilingheight)
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{
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z = ceilingheight - thing->height;
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}
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}
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else
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{
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z = floorheight;
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}
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}
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if (!P_TeleportMove (thing, x, y, z, false))
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{
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return false;
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}
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if (player)
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{
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player->viewz = thing->z + player->viewheight;
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if (resetpitch)
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{
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player->mo->pitch = 0;
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}
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}
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if (!keepOrientation)
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{
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thing->angle = angle;
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}
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else
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{
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angle = thing->angle;
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}
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// Spawn teleport fog at source and destination
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if (sourceFog)
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{
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fixed_t fogDelta = thing->flags & MF_MISSILE ? 0 : TELEFOGHEIGHT;
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Spawn<ATeleportFog> (oldx, oldy, oldz + fogDelta, ALLOW_REPLACE);
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}
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if (useFog)
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{
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fixed_t fogDelta = thing->flags & MF_MISSILE ? 0 : TELEFOGHEIGHT;
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an = angle >> ANGLETOFINESHIFT;
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Spawn<ATeleportFog> (x + 20*finecosine[an],
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y + 20*finesine[an], thing->z + fogDelta, ALLOW_REPLACE);
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if (thing->player)
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{
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// [RH] Zoom player's field of vision
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// [BC] && bHaltVelocity.
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if (telezoom && thing->player->mo == thing && bHaltVelocity)
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thing->player->FOV = MIN (175.f, thing->player->DesiredFOV + 45.f);
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}
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}
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// [BC] && bHaltVelocity.
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if (thing->player && (useFog || !keepOrientation) && bHaltVelocity)
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{
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// Freeze player for about .5 sec
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if (thing->Inventory == NULL || thing->Inventory->GetSpeedFactor() <= FRACUNIT)
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thing->reactiontime = 18;
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}
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if (thing->flags & MF_MISSILE)
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{
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angle >>= ANGLETOFINESHIFT;
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thing->velx = FixedMul (thing->Speed, finecosine[angle]);
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thing->vely = FixedMul (thing->Speed, finesine[angle]);
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}
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// [BC] && bHaltVelocity.
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else if (!keepOrientation && bHaltVelocity) // no fog doesn't alter the player's momentum
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{
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thing->velx = thing->vely = thing->velz = 0;
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// killough 10/98: kill all bobbing velocity too
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if (player)
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player->velx = player->vely = 0;
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}
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return true;
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}
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static AActor *SelectTeleDest (int tid, int tag)
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{
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AActor *searcher;
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// If tid is non-zero, select a destination from a matching actor at random.
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// If tag is also non-zero, the selection is restricted to actors in sectors
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// with a matching tag. If tid is zero and tag is non-zero, then the old Doom
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// behavior is used instead (return the first teleport dest found in a tagged
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// sector).
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if (tid != 0)
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{
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NActorIterator iterator (NAME_TeleportDest, tid);
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int count = 0;
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while ( (searcher = iterator.Next ()) )
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{
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if (tag == 0 || searcher->Sector->tag == tag)
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{
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count++;
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}
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}
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// If teleport dests were not found, the sector tag is ignored for the
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// following compatibility searches.
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// Do this only when tag is 0 because this is the only case that was defined in Hexen.
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if (count == 0)
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{
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if (tag == 0)
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{
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// Try to find a matching map spot (fixes Hexen MAP10)
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NActorIterator it2 (NAME_MapSpot, tid);
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searcher = it2.Next ();
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if (searcher == NULL)
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{
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// Try to find a matching non-blocking spot of any type (fixes Caldera MAP13)
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FActorIterator it3 (tid);
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searcher = it3.Next ();
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while (searcher != NULL && (searcher->flags & MF_SOLID))
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{
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searcher = it3.Next ();
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}
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return searcher;
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}
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}
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}
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else
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{
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if (count != 1)
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{
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count = 1 + (pr_teleport() % count);
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}
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searcher = NULL;
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while (count > 0)
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{
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searcher = iterator.Next ();
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if (tag == 0 || searcher->Sector->tag == tag)
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{
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count--;
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}
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}
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}
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return searcher;
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}
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if (tag != 0)
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{
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int secnum = -1;
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while ((secnum = P_FindSectorFromTag (tag, secnum)) >= 0)
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{
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// Scanning the snext links of things in the sector will not work, because
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// TeleportDests have MF_NOSECTOR set. So you have to search *everything*.
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// If there is more than one sector with a matching tag, then the destination
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// in the lowest-numbered sector is returned, rather than the earliest placed
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// teleport destination. This means if 50 sectors have a matching tag and
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// only the last one has a destination, *every* actor is scanned at least 49
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// times. Yuck.
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TThinkerIterator<AActor> it2(NAME_TeleportDest);
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while ((searcher = it2.Next()) != NULL)
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{
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if (searcher->Sector == sectors + secnum)
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{
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return searcher;
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}
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}
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}
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}
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return NULL;
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}
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bool EV_Teleport (int tid, int tag, line_t *line, int side, AActor *thing, bool fog,
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bool sourceFog, bool keepOrientation, bool haltVelocity)
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{
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AActor *searcher;
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fixed_t z;
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angle_t angle = 0;
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fixed_t s = 0, c = 0;
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fixed_t velx = 0, vely = 0;
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if (thing == NULL)
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{ // Teleport function called with an invalid actor
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return false;
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}
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if (thing->flags2 & MF2_NOTELEPORT)
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{
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return false;
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}
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if (side != 0)
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{ // Don't teleport if hit back of line, so you can get out of teleporter.
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return 0;
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}
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searcher = SelectTeleDest (tid, tag);
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if (searcher == NULL)
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{
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return false;
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}
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// [RH] Lee Killough's changes for silent teleporters from BOOM
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if (keepOrientation && line)
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{
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// Get the angle between the exit thing and source linedef.
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// Rotate 90 degrees, so that walking perpendicularly across
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// teleporter linedef causes thing to exit in the direction
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// indicated by the exit thing.
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angle = R_PointToAngle2 (0, 0, line->dx, line->dy) - searcher->angle + ANG90;
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// Sine, cosine of angle adjustment
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s = finesine[angle>>ANGLETOFINESHIFT];
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c = finecosine[angle>>ANGLETOFINESHIFT];
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// Velocity of thing crossing teleporter linedef
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velx = thing->velx;
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vely = thing->vely;
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z = searcher->z;
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}
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else if (searcher->IsKindOf (PClass::FindClass(NAME_TeleportDest2)))
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{
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z = searcher->z;
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}
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else
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{
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z = ONFLOORZ;
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}
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if (P_Teleport (thing, searcher->x, searcher->y, z, searcher->angle, fog, sourceFog, keepOrientation, haltVelocity))
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{
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// [RH] Lee Killough's changes for silent teleporters from BOOM
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if (!fog && line && keepOrientation)
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{
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// Rotate thing according to difference in angles
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thing->angle += angle;
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// Rotate thing's velocity to come out of exit just like it entered
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thing->velx = FixedMul(velx, c) - FixedMul(vely, s);
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thing->vely = FixedMul(vely, c) + FixedMul(velx, s);
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}
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if ((velx | vely) == 0 && thing->player != NULL && thing->player->mo == thing)
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{
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thing->player->mo->PlayIdle ();
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}
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return true;
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}
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return false;
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}
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//
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// Silent linedef-based TELEPORTATION, by Lee Killough
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// Primarily for rooms-over-rooms etc.
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// This is the complete player-preserving kind of teleporter.
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// It has advantages over the teleporter with thing exits.
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//
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// [RH] Modified to support different source and destination ids.
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// [RH] Modified some more to be accurate.
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bool EV_SilentLineTeleport (line_t *line, int side, AActor *thing, int id, INTBOOL reverse)
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{
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int i;
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line_t *l;
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if (side || thing->flags2 & MF2_NOTELEPORT || !line || line->sidedef[1] == NULL)
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return false;
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for (i = -1; (i = P_FindLineFromID (id, i)) >= 0; )
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{
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if (line-lines == i)
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continue;
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if ((l=lines+i) != line && l->backsector)
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{
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// Get the thing's position along the source linedef
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SDWORD pos; // 30.2 fixed
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fixed_t nposx, nposy; // offsets from line
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{
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SQWORD den;
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den = (SQWORD)line->dx*line->dx + (SQWORD)line->dy*line->dy;
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if (den == 0)
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{
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pos = 0;
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nposx = 0;
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nposy = 0;
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}
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else
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{
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SQWORD num = (SQWORD)(thing->x-line->v1->x)*line->dx +
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(SQWORD)(thing->y-line->v1->y)*line->dy;
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if (num <= 0)
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{
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pos = 0;
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}
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else if (num >= den)
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{
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pos = 1<<30;
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}
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else
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{
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pos = (SDWORD)(num / (den>>30));
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}
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nposx = thing->x - line->v1->x - MulScale30 (line->dx, pos);
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nposy = thing->y - line->v1->y - MulScale30 (line->dy, pos);
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}
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}
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// Get the angle between the two linedefs, for rotating
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// orientation and velocity. Rotate 180 degrees, and flip
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// the position across the exit linedef, if reversed.
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angle_t angle =
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R_PointToAngle2(0, 0, l->dx, l->dy) -
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R_PointToAngle2(0, 0, line->dx, line->dy);
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if (!reverse)
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{
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angle += ANGLE_180;
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pos = (1<<30) - pos;
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}
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// Sine, cosine of angle adjustment
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fixed_t s = finesine[angle>>ANGLETOFINESHIFT];
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fixed_t c = finecosine[angle>>ANGLETOFINESHIFT];
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fixed_t x, y;
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// Rotate position along normal to match exit linedef
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x = DMulScale16 (nposx, c, -nposy, s);
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y = DMulScale16 (nposy, c, nposx, s);
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// Interpolate position across the exit linedef
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x += l->v1->x + MulScale30 (pos, l->dx);
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y += l->v1->y + MulScale30 (pos, l->dy);
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// Whether this is a player, and if so, a pointer to its player_t.
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// Voodoo dolls are excluded by making sure thing->player->mo==thing.
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player_t *player = thing->player && thing->player->mo == thing ?
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thing->player : NULL;
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// Height of thing above ground
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fixed_t z;
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z = thing->z - line->backsector->floorplane.ZatPoint (thing->x, thing->y)
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+ l->frontsector->floorplane.ZatPoint (x, y);
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// Attempt to teleport, aborting if blocked
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// Adjust z position to be same height above ground as before.
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// Ground level at the exit is measured as the higher of the
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// two floor heights at the exit linedef.
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if (!P_TeleportMove (thing, x, y, z, false))
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{
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return false;
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}
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if (thing == players[consoleplayer].camera)
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{
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R_ResetViewInterpolation ();
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}
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// Rotate thing's orientation according to difference in linedef angles
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thing->angle += angle;
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// Velocity of thing crossing teleporter linedef
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x = thing->velx;
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y = thing->vely;
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// Rotate thing's velocity to come out of exit just like it entered
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thing->velx = DMulScale16 (x, c, -y, s);
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thing->vely = DMulScale16 (y, c, x, s);
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// Adjust a player's view, in case there has been a height change
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if (player && player->mo == thing)
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{
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// Adjust player's local copy of velocity
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x = player->velx;
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y = player->vely;
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player->velx = DMulScale16 (x, c, -y, s);
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player->vely = DMulScale16 (y, c, x, s);
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// Save the current deltaviewheight, used in stepping
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fixed_t deltaviewheight = player->deltaviewheight;
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// Clear deltaviewheight, since we don't want any changes now
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player->deltaviewheight = 0;
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// Set player's view according to the newly set parameters
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P_CalcHeight(player);
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// Reset the delta to have the same dynamics as before
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player->deltaviewheight = deltaviewheight;
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}
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return true;
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}
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}
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return false;
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}
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// [RH] Teleport anything matching other_tid to dest_tid
|
|
bool EV_TeleportOther (int other_tid, int dest_tid, bool fog)
|
|
{
|
|
bool didSomething = false;
|
|
|
|
if (other_tid != 0 && dest_tid != 0)
|
|
{
|
|
AActor *victim;
|
|
FActorIterator iterator (other_tid);
|
|
|
|
while ( (victim = iterator.Next ()) )
|
|
{
|
|
didSomething |= EV_Teleport (dest_tid, 0, NULL, 0, victim, fog, fog, !fog);
|
|
}
|
|
}
|
|
|
|
return didSomething;
|
|
}
|
|
|
|
static bool DoGroupForOne (AActor *victim, AActor *source, AActor *dest, bool floorz, bool fog)
|
|
{
|
|
int an = (dest->angle - source->angle) >> ANGLETOFINESHIFT;
|
|
fixed_t offX = victim->x - source->x;
|
|
fixed_t offY = victim->y - source->y;
|
|
angle_t offAngle = victim->angle - source->angle;
|
|
fixed_t newX = DMulScale16 (offX, finecosine[an], -offY, finesine[an]);
|
|
fixed_t newY = DMulScale16 (offX, finesine[an], offY, finecosine[an]);
|
|
|
|
bool res =
|
|
P_Teleport (victim, dest->x + newX,
|
|
dest->y + newY,
|
|
floorz ? ONFLOORZ : dest->z + victim->z - source->z,
|
|
0, fog, fog, !fog);
|
|
// P_Teleport only changes angle if fog is true
|
|
victim->angle = dest->angle + offAngle;
|
|
|
|
return res;
|
|
}
|
|
|
|
#if 0
|
|
static void MoveTheDecal (DBaseDecal *decal, fixed_t z, AActor *source, AActor *dest)
|
|
{
|
|
int an = (dest->angle - source->angle) >> ANGLETOFINESHIFT;
|
|
fixed_t offX = decal->x - source->x;
|
|
fixed_t offY = decal->y - source->y;
|
|
fixed_t newX = DMulScale16 (offX, finecosine[an], -offY, finesine[an]);
|
|
fixed_t newY = DMulScale16 (offX, finesine[an], offY, finecosine[an]);
|
|
|
|
decal->Relocate (dest->x + newX, dest->y + newY, dest->z + z - source->z);
|
|
}
|
|
#endif
|
|
|
|
// [RH] Teleport a group of actors centered around source_tid so
|
|
// that they become centered around dest_tid instead.
|
|
bool EV_TeleportGroup (int group_tid, AActor *victim, int source_tid, int dest_tid, bool moveSource, bool fog)
|
|
{
|
|
AActor *sourceOrigin, *destOrigin;
|
|
{
|
|
FActorIterator iterator (source_tid);
|
|
sourceOrigin = iterator.Next ();
|
|
}
|
|
if (sourceOrigin == NULL)
|
|
{ // If there is no source origin, behave like TeleportOther
|
|
return EV_TeleportOther (group_tid, dest_tid, fog);
|
|
}
|
|
|
|
{
|
|
NActorIterator iterator (NAME_TeleportDest, dest_tid);
|
|
destOrigin = iterator.Next ();
|
|
}
|
|
if (destOrigin == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool didSomething = false;
|
|
bool floorz = !destOrigin->IsKindOf (PClass::FindClass("TeleportDest2"));
|
|
|
|
// Use the passed victim if group_tid is 0
|
|
if (group_tid == 0 && victim != NULL)
|
|
{
|
|
didSomething = DoGroupForOne (victim, sourceOrigin, destOrigin, floorz, fog);
|
|
}
|
|
else
|
|
{
|
|
FActorIterator iterator (group_tid);
|
|
|
|
// For each actor with tid matching arg0, move it to the same
|
|
// position relative to destOrigin as it is relative to sourceOrigin
|
|
// before the teleport.
|
|
while ( (victim = iterator.Next ()) )
|
|
{
|
|
didSomething |= DoGroupForOne (victim, sourceOrigin, destOrigin, floorz, fog);
|
|
}
|
|
}
|
|
|
|
if (moveSource && didSomething)
|
|
{
|
|
didSomething |=
|
|
P_Teleport (sourceOrigin, destOrigin->x, destOrigin->y,
|
|
floorz ? ONFLOORZ : destOrigin->z, 0, false, false, true);
|
|
sourceOrigin->angle = destOrigin->angle;
|
|
}
|
|
|
|
return didSomething;
|
|
}
|
|
|
|
// [RH] Teleport a group of actors in a sector. Source_tid is used as a
|
|
// reference point so that they end up in the same position relative to
|
|
// dest_tid. Group_tid can be used to not teleport all actors in the sector.
|
|
bool EV_TeleportSector (int tag, int source_tid, int dest_tid, bool fog, int group_tid)
|
|
{
|
|
AActor *sourceOrigin, *destOrigin;
|
|
{
|
|
FActorIterator iterator (source_tid);
|
|
sourceOrigin = iterator.Next ();
|
|
}
|
|
if (sourceOrigin == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
{
|
|
NActorIterator iterator (NAME_TeleportDest, dest_tid);
|
|
destOrigin = iterator.Next ();
|
|
}
|
|
if (destOrigin == NULL)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
bool didSomething = false;
|
|
bool floorz = !destOrigin->IsKindOf (PClass::FindClass("TeleportDest2"));
|
|
int secnum;
|
|
|
|
secnum = -1;
|
|
while ((secnum = P_FindSectorFromTag (tag, secnum)) >= 0)
|
|
{
|
|
msecnode_t *node;
|
|
const sector_t * const sec = §ors[secnum];
|
|
|
|
for (node = sec->touching_thinglist; node; )
|
|
{
|
|
AActor *actor = node->m_thing;
|
|
msecnode_t *next = node->m_snext;
|
|
|
|
// possibly limit actors by group
|
|
if (actor != NULL && (group_tid == 0 || actor->tid == group_tid))
|
|
{
|
|
didSomething |= DoGroupForOne (actor, sourceOrigin, destOrigin, floorz, fog);
|
|
}
|
|
node = next;
|
|
}
|
|
|
|
#if 0
|
|
if (group_tid == 0 && !fog)
|
|
{
|
|
int lineindex;
|
|
for (lineindex = sec->linecount-1; lineindex >= 0; --lineindex)
|
|
{
|
|
line_t *line = sec->lines[lineindex];
|
|
int wallnum;
|
|
|
|
wallnum = line->sidenum[(line->backsector == sec)];
|
|
if (wallnum != -1)
|
|
{
|
|
side_t *wall = &sides[wallnum];
|
|
ADecal *decal = wall->BoundActors;
|
|
|
|
while (decal != NULL)
|
|
{
|
|
ADecal *next = (ADecal *)decal->snext;
|
|
MoveTheDecal (decal, decal->GetRealZ (wall), sourceOrigin, destOrigin);
|
|
decal = next;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
return didSomething;
|
|
}
|