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https://github.com/ZDoom/gzdoom.git
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0f6a567055
This required some changes to the Trace function because it turned out that the original was incapable of collecting the required information: * actors are now also linked into blockmap blocks on both sides if they occupy the boundary of a sector portal. * Trace will no longer set up parallel traces in all parts connected with sector portal, but only use one trace and relocate that on the actual boundary.
115 lines
3.6 KiB
C++
115 lines
3.6 KiB
C++
/*
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** p_trace.h
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2006 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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#ifndef __P_TRACE_H__
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#define __P_TRACE_H__
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#include <stddef.h>
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#include "actor.h"
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#include "cmdlib.h"
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#include "textures/textures.h"
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struct sector_t;
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struct line_t;
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class AActor;
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struct F3DFloor;
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enum ETraceResult
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{
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TRACE_HitNone,
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TRACE_HitFloor,
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TRACE_HitCeiling,
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TRACE_HitWall,
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TRACE_HitActor,
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TRACE_CrossingPortal,
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};
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enum
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{
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TIER_Middle,
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TIER_Upper,
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TIER_Lower,
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TIER_FFloor,
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};
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struct FTraceResults
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{
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sector_t *Sector;
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FTextureID HitTexture;
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DVector3 HitPos;
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DVector3 HitVector;
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DVector3 SrcFromTarget;
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DAngle SrcAngleFromTarget;
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double Distance;
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double Fraction;
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AActor *Actor; // valid if hit an actor
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line_t *Line; // valid if hit a line
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BYTE Side;
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BYTE Tier;
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bool unlinked; // passed through a portal without static offset.
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ETraceResult HitType;
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F3DFloor *ffloor;
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sector_t *CrossedWater; // For Boom-style, Transfer_Heights-based deep water
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DVector3 CrossedWaterPos; // remember the position so that we can use it for spawning the splash
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F3DFloor *Crossed3DWater; // For 3D floor-based deep water
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DVector3 Crossed3DWaterPos;
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};
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enum
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{
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TRACE_NoSky = 1, // Hitting the sky returns TRACE_HitNone
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TRACE_PCross = 2, // Trigger SPAC_PCROSS lines
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TRACE_Impact = 4, // Trigger SPAC_IMPACT lines
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TRACE_PortalRestrict= 8, // Cannot go through portals without a static link offset.
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TRACE_ReportPortals = 16, // Report any portal crossing to the TraceCallback
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};
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// return values from callback
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enum ETraceStatus
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{
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TRACE_Stop, // stop the trace, returning this hit
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TRACE_Continue, // continue the trace, returning this hit if there are none further along
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TRACE_Skip, // continue the trace; do not return this hit
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TRACE_Abort, // stop the trace, returning no hits
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};
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bool Trace(const DVector3 &start, sector_t *sector, const DVector3 &direction, double maxDist,
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ActorFlags ActorMask, DWORD WallMask, AActor *ignore, FTraceResults &res, DWORD traceFlags = 0,
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ETraceStatus(*callback)(FTraceResults &res, void *) = NULL, void *callbackdata = NULL);
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#endif //__P_TRACE_H__
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