mirror of
https://github.com/ZDoom/gzdoom-gles.git
synced 2024-11-07 21:41:42 +00:00
d753d41752
parameters. - All DECORATE parameters are passed as expressions now. This change allows for compile time checks of all class names being used in DECORATE so many incorrect definitions may output warnings now. - Changed DECORATE sound and color parameters to use expressions. - Changed: S_StopChannel now resets the actor's sound flags. The previous bug made me think that delaying this until FMod calls the end of sound callback may simply be too late. SVN r1276 (trunk)
806 lines
22 KiB
C++
806 lines
22 KiB
C++
/*
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** p_states.cpp
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** state management
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**
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**---------------------------------------------------------------------------
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** Copyright 1998-2008 Randy Heit
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** Copyright 2006-2008 Christoph Oelckers
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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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*/
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#include "actor.h"
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#include "farchive.h"
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#include "templates.h"
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#include "cmdlib.h"
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#include "i_system.h"
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#include "c_dispatch.h"
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#include "thingdef/thingdef.h"
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// Each state is owned by an actor. Actors can own any number of
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// states, but a single state cannot be owned by more than one
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// actor. States are archived by recording the actor they belong
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// to and the index into that actor's list of states.
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// For NULL states, which aren't owned by any actor, the owner
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// is recorded as AActor with the following state. AActor should
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// never actually have this many states of its own, so this
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// is (relatively) safe.
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#define NULL_STATE_INDEX 127
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//==========================================================================
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//
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//
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//==========================================================================
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FArchive &operator<< (FArchive &arc, FState *&state)
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{
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const PClass *info;
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if (arc.IsStoring ())
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{
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if (state == NULL)
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{
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arc.UserWriteClass (RUNTIME_CLASS(AActor));
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arc.WriteCount (NULL_STATE_INDEX);
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return arc;
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}
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info = FState::StaticFindStateOwner (state);
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if (info != NULL)
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{
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arc.UserWriteClass (info);
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arc.WriteCount ((DWORD)(state - info->ActorInfo->OwnedStates));
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}
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else
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{
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/* this was never working as intended.
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I_Error ("Cannot find owner for state %p:\n"
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"%s %c%c %3d [%p] -> %p", state,
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sprites[state->sprite].name,
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state->GetFrame() + 'A',
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state->GetFullbright() ? '*' : ' ',
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state->GetTics(),
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state->GetAction(),
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state->GetNextState());
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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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const PClass *info;
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DWORD ofs;
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arc.UserReadClass (info);
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ofs = arc.ReadCount ();
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if (ofs == NULL_STATE_INDEX && info == RUNTIME_CLASS(AActor))
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{
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state = NULL;
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}
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else if (info->ActorInfo != NULL)
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{
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state = info->ActorInfo->OwnedStates + ofs;
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}
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else
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{
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state = NULL;
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}
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}
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return arc;
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}
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//==========================================================================
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//
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// Find the actor that a state belongs to.
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//
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//==========================================================================
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const PClass *FState::StaticFindStateOwner (const FState *state)
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{
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for (unsigned int i = 0; i < PClass::m_RuntimeActors.Size(); ++i)
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{
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FActorInfo *info = PClass::m_RuntimeActors[i]->ActorInfo;
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if (state >= info->OwnedStates &&
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state < info->OwnedStates + info->NumOwnedStates)
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{
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return info->Class;
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}
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}
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return NULL;
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}
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//==========================================================================
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//
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// Find the actor that a state belongs to, but restrict the search to
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// the specified type and its ancestors.
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//
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//==========================================================================
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const PClass *FState::StaticFindStateOwner (const FState *state, const FActorInfo *info)
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{
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while (info != NULL)
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{
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if (state >= info->OwnedStates &&
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state < info->OwnedStates + info->NumOwnedStates)
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{
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return info->Class;
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}
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info = info->Class->ParentClass->ActorInfo;
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}
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return NULL;
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}
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//==========================================================================
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//
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//
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//==========================================================================
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FStateLabel *FStateLabels::FindLabel (FName label)
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{
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return const_cast<FStateLabel *>(BinarySearch<FStateLabel, FName> (Labels, NumLabels, &FStateLabel::Label, label));
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}
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void FStateLabels::Destroy ()
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{
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for(int i=0; i<NumLabels;i++)
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{
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if (Labels[i].Children != NULL)
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{
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Labels[i].Children->Destroy();
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free (Labels[i].Children); // These are malloc'd, not new'd!
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Labels[i].Children=NULL;
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}
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}
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}
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//===========================================================================
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//
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// HasStates
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//
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// Checks whether the actor has special death states.
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//
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//===========================================================================
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bool AActor::HasSpecialDeathStates () const
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{
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const FActorInfo *info = GetClass()->ActorInfo;
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if (info->StateList != NULL)
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{
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FStateLabel *slabel = info->StateList->FindLabel (NAME_Death);
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if (slabel != NULL && slabel->Children != NULL)
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{
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for(int i=0;i<slabel->Children->NumLabels;i++)
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{
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if (slabel->Children->Labels[i].State != NULL) return true;
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}
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}
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}
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return false;
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}
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//==========================================================================
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//
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// Creates a list of names from a string. Dots are used as separator
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//
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//==========================================================================
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TArray<FName> &MakeStateNameList(const char * fname)
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{
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static TArray<FName> namelist(3);
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FName firstpart, secondpart;
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char * c;
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// Handle the old names for the existing death states
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char * name = copystring(fname);
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firstpart = strtok(name, ".");
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switch (firstpart)
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{
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case NAME_Burn:
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firstpart = NAME_Death;
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secondpart = NAME_Fire;
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break;
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case NAME_Ice:
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firstpart = NAME_Death;
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secondpart = NAME_Ice;
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break;
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case NAME_Disintegrate:
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firstpart = NAME_Death;
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secondpart = NAME_Disintegrate;
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break;
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case NAME_XDeath:
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firstpart = NAME_Death;
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secondpart = NAME_Extreme;
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break;
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}
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namelist.Clear();
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namelist.Push(firstpart);
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if (secondpart!=NAME_None) namelist.Push(secondpart);
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while ((c = strtok(NULL, "."))!=NULL)
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{
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FName cc = c;
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namelist.Push(cc);
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}
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delete [] name;
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return namelist;
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}
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//===========================================================================
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//
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// FindState (multiple names version)
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//
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// Finds a state that matches as many of the supplied names as possible.
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// A state with more names than those provided does not match.
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// A state with fewer names can match if there are no states with the exact
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// same number of names.
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//
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// The search proceeds like this. For the current class, keeping matching
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// names until there are no more. If both the argument list and the state
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// are out of names, it's an exact match, so return it. If the state still
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// has names, ignore it. If the argument list still has names, remember it.
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//
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//===========================================================================
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FState *FActorInfo::FindState (int numnames, FName *names, bool exact) const
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{
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FStateLabels *labels = StateList;
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FState *best = NULL;
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if (labels != NULL)
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{
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int count = 0;
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FStateLabel *slabel = NULL;
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FName label;
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// Find the best-matching label for this class.
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while (labels != NULL && count < numnames)
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{
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label = *names++;
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slabel = labels->FindLabel (label);
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if (slabel != NULL)
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{
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count++;
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labels = slabel->Children;
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best = slabel->State;
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}
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else
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{
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break;
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}
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}
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if (count < numnames && exact) return NULL;
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}
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return best;
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}
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//==========================================================================
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//
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// Finds the state associated with the given string
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//
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//==========================================================================
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FState *FActorInfo::FindStateByString(const char *name, bool exact)
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{
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TArray<FName> &namelist = MakeStateNameList(name);
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return FindState(namelist.Size(), &namelist[0], exact);
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}
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//==========================================================================
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//
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// Search one list of state definitions for the given name
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//
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//==========================================================================
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FStateDefine *FStateDefinitions::FindStateLabelInList(TArray<FStateDefine> & list, FName name, bool create)
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{
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for(unsigned i = 0; i<list.Size(); i++)
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{
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if (list[i].Label == name) return &list[i];
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}
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if (create)
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{
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FStateDefine def;
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def.Label=name;
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def.State=NULL;
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def.DefineFlags = SDF_NEXT;
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return &list[list.Push(def)];
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}
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return NULL;
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}
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//==========================================================================
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//
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// Finds the address of a state label given by name.
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// Adds the state label if it doesn't exist
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//
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//==========================================================================
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FStateDefine * FStateDefinitions::FindStateAddress(const char *name)
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{
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FStateDefine * statedef=NULL;
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TArray<FName> &namelist = MakeStateNameList(name);
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TArray<FStateDefine> * statelist = &StateLabels;
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for(unsigned i=0;i<namelist.Size();i++)
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{
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statedef = FindStateLabelInList(*statelist, namelist[i], true);
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statelist = &statedef->Children;
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}
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return statedef;
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}
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//==========================================================================
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//
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// Adds a new state tp the curremt list
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//
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//==========================================================================
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void FStateDefinitions::AddState (const char *statename, FState *state, BYTE defflags)
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{
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FStateDefine *std = FindStateAddress(statename);
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std->State = state;
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std->DefineFlags = defflags;
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}
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//==========================================================================
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//
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// Finds the state associated with the given name
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// returns NULL if none found
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//
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//==========================================================================
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FState * FStateDefinitions::FindState(const char * name)
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{
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FStateDefine * statedef=NULL;
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TArray<FName> &namelist = MakeStateNameList(name);
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TArray<FStateDefine> * statelist = &StateLabels;
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for(unsigned i=0;i<namelist.Size();i++)
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{
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statedef = FindStateLabelInList(*statelist, namelist[i], false);
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if (statedef == NULL) return NULL;
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statelist = &statedef->Children;
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}
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return statedef? statedef->State : NULL;
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}
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//==========================================================================
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//
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// Creates the final list of states from the state definitions
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//
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//==========================================================================
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static int STACK_ARGS labelcmp(const void * a, const void * b)
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{
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FStateLabel * A = (FStateLabel *)a;
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FStateLabel * B = (FStateLabel *)b;
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return ((int)A->Label - (int)B->Label);
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}
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FStateLabels * FStateDefinitions::CreateStateLabelList(TArray<FStateDefine> & statelist)
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{
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// First delete all empty labels from the list
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for (int i=statelist.Size()-1;i>=0;i--)
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{
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if (statelist[i].Label == NAME_None || (statelist[i].State == NULL && statelist[i].Children.Size() == 0))
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{
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statelist.Delete(i);
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}
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}
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int count=statelist.Size();
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if (count == 0) return NULL;
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FStateLabels * list = (FStateLabels*)M_Malloc(sizeof(FStateLabels)+(count-1)*sizeof(FStateLabel));
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list->NumLabels = count;
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for (int i=0;i<count;i++)
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{
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list->Labels[i].Label = statelist[i].Label;
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list->Labels[i].State = statelist[i].State;
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list->Labels[i].Children = CreateStateLabelList(statelist[i].Children);
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}
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qsort(list->Labels, count, sizeof(FStateLabel), labelcmp);
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return list;
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}
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//===========================================================================
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//
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// InstallStates
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//
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// Creates the actor's state list from the current definition
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//
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//===========================================================================
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void FStateDefinitions::InstallStates(FActorInfo *info, AActor *defaults)
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{
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// First ensure we have a valid spawn state.
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FState *state = FindState("Spawn");
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if (state == NULL)
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{
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// A NULL spawn state will crash the engine so set it to something valid.
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AddState("Spawn", GetDefault<AActor>()->SpawnState);
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}
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if (info->StateList != NULL)
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{
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info->StateList->Destroy();
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M_Free(info->StateList);
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}
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info->StateList = CreateStateLabelList(StateLabels);
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// Cache these states as member veriables.
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defaults->SpawnState = info->FindState(NAME_Spawn);
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defaults->SeeState = info->FindState(NAME_See);
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// Melee and Missile states are manipulated by the scripted marines so they
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// have to be stored locally
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defaults->MeleeState = info->FindState(NAME_Melee);
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defaults->MissileState = info->FindState(NAME_Missile);
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}
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//===========================================================================
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//
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// MakeStateDefines
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//
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// Creates a list of state definitions from an existing actor
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// Used by Dehacked to modify an actor's state list
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//
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//===========================================================================
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void FStateDefinitions::MakeStateList(const FStateLabels *list, TArray<FStateDefine> &dest)
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{
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dest.Clear();
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if (list != NULL) for(int i=0;i<list->NumLabels;i++)
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{
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FStateDefine def;
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def.Label = list->Labels[i].Label;
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def.State = list->Labels[i].State;
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def.DefineFlags = SDF_STATE;
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dest.Push(def);
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if (list->Labels[i].Children != NULL)
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{
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MakeStateList(list->Labels[i].Children, dest[dest.Size()-1].Children);
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}
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}
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}
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void FStateDefinitions::MakeStateDefines(const PClass *cls)
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{
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if (cls->ActorInfo && cls->ActorInfo->StateList)
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{
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MakeStateList(cls->ActorInfo->StateList, StateLabels);
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}
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else
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{
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ClearStateLabels();
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}
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}
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//===========================================================================
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//
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// AddStateDefines
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//
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// Adds a list of states to the current definitions
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//
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//===========================================================================
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void FStateDefinitions::AddStateDefines(const FStateLabels *list)
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{
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if (list != NULL) for(int i=0;i<list->NumLabels;i++)
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{
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if (list->Labels[i].Children == NULL)
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{
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if (!FindStateLabelInList(StateLabels, list->Labels[i].Label, false))
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{
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FStateDefine def;
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def.Label = list->Labels[i].Label;
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def.State = list->Labels[i].State;
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def.DefineFlags = SDF_STATE;
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StateLabels.Push(def);
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}
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}
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}
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}
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//==========================================================================
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//
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// RetargetState(Pointer)s
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//
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// These functions are used when a goto follows one or more labels.
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// Because multiple labels are permitted to occur consecutively with no
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// intervening states, it is not enough to remember the last label defined
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// and adjust it. So these functions search for all labels that point to
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// the current position in the state array and give them a copy of the
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// target string instead.
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//
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//==========================================================================
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void FStateDefinitions::RetargetStatePointers (intptr_t count, const char *target, TArray<FStateDefine> & statelist)
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{
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for(unsigned i = 0;i<statelist.Size(); i++)
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{
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if (statelist[i].State == (FState*)count)
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{
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if (target == NULL)
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{
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statelist[i].State = NULL;
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statelist[i].DefineFlags = SDF_STOP;
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}
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else
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{
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statelist[i].State = (FState *)copystring (target);
|
|
statelist[i].DefineFlags = SDF_LABEL;
|
|
}
|
|
}
|
|
if (statelist[i].Children.Size() > 0)
|
|
{
|
|
RetargetStatePointers(count, target, statelist[i].Children);
|
|
}
|
|
}
|
|
}
|
|
|
|
void FStateDefinitions::RetargetStates (intptr_t count, const char *target)
|
|
{
|
|
RetargetStatePointers(count, target, StateLabels);
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// ResolveGotoLabel
|
|
//
|
|
// Resolves any strings being stored in a state's NextState field
|
|
//
|
|
//==========================================================================
|
|
|
|
FState *FStateDefinitions::ResolveGotoLabel (AActor *actor, const PClass *mytype, char *name)
|
|
{
|
|
const PClass *type=mytype;
|
|
FState *state;
|
|
char *namestart = name;
|
|
char *label, *offset, *pt;
|
|
int v;
|
|
|
|
// Check for classname
|
|
if ((pt = strstr (name, "::")) != NULL)
|
|
{
|
|
const char *classname = name;
|
|
*pt = '\0';
|
|
name = pt + 2;
|
|
|
|
// The classname may either be "Super" to identify this class's immediate
|
|
// superclass, or it may be the name of any class that this one derives from.
|
|
if (stricmp (classname, "Super") == 0)
|
|
{
|
|
type = type->ParentClass;
|
|
actor = GetDefaultByType (type);
|
|
}
|
|
else
|
|
{
|
|
// first check whether a state of the desired name exists
|
|
const PClass *stype = PClass::FindClass (classname);
|
|
if (stype == NULL)
|
|
{
|
|
I_Error ("%s is an unknown class.", classname);
|
|
}
|
|
if (!stype->IsDescendantOf (RUNTIME_CLASS(AActor)))
|
|
{
|
|
I_Error ("%s is not an actor class, so it has no states.", stype->TypeName.GetChars());
|
|
}
|
|
if (!stype->IsAncestorOf (type))
|
|
{
|
|
I_Error ("%s is not derived from %s so cannot access its states.",
|
|
type->TypeName.GetChars(), stype->TypeName.GetChars());
|
|
}
|
|
if (type != stype)
|
|
{
|
|
type = stype;
|
|
actor = GetDefaultByType (type);
|
|
}
|
|
}
|
|
}
|
|
label = name;
|
|
// Check for offset
|
|
offset = NULL;
|
|
if ((pt = strchr (name, '+')) != NULL)
|
|
{
|
|
*pt = '\0';
|
|
offset = pt + 1;
|
|
}
|
|
v = offset ? strtol (offset, NULL, 0) : 0;
|
|
|
|
// Get the state's address.
|
|
if (type==mytype) state = FindState (label);
|
|
else state = type->ActorInfo->FindStateByString(label, true);
|
|
|
|
if (state != NULL)
|
|
{
|
|
state += v;
|
|
}
|
|
else if (v != 0)
|
|
{
|
|
I_Error ("Attempt to get invalid state %s from actor %s.", label, type->TypeName.GetChars());
|
|
}
|
|
delete[] namestart; // free the allocated string buffer
|
|
return state;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// FixStatePointers
|
|
//
|
|
// Fixes an actor's default state pointers.
|
|
//
|
|
//==========================================================================
|
|
|
|
void FStateDefinitions::FixStatePointers (FActorInfo *actor, TArray<FStateDefine> & list)
|
|
{
|
|
for(unsigned i=0;i<list.Size(); i++)
|
|
{
|
|
if (list[i].DefineFlags == SDF_INDEX)
|
|
{
|
|
size_t v=(size_t)list[i].State;
|
|
list[i].State = actor->OwnedStates + v - 1;
|
|
list[i].DefineFlags = SDF_STATE;
|
|
}
|
|
if (list[i].Children.Size() > 0) FixStatePointers(actor, list[i].Children);
|
|
}
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// ResolveGotoLabels
|
|
//
|
|
// Resolves an actor's state pointers that were specified as jumps.
|
|
//
|
|
//==========================================================================
|
|
|
|
void FStateDefinitions::ResolveGotoLabels (FActorInfo *actor, AActor *defaults, TArray<FStateDefine> & list)
|
|
{
|
|
for(unsigned i=0;i<list.Size(); i++)
|
|
{
|
|
if (list[i].State != NULL && list[i].DefineFlags == SDF_LABEL)
|
|
{ // It's not a valid state, so it must be a label string. Resolve it.
|
|
list[i].State = ResolveGotoLabel (defaults, actor->Class, (char *)list[i].State);
|
|
list[i].DefineFlags = SDF_STATE;
|
|
}
|
|
if (list[i].Children.Size() > 0) ResolveGotoLabels(actor, defaults, list[i].Children);
|
|
}
|
|
}
|
|
|
|
|
|
//==========================================================================
|
|
//
|
|
// FinishStates
|
|
// copies a state block and fixes all state links using the current list of labels
|
|
//
|
|
//==========================================================================
|
|
|
|
int FStateDefinitions::FinishStates (FActorInfo *actor, AActor *defaults, TArray<FState> &StateArray)
|
|
{
|
|
static int c=0;
|
|
int count = StateArray.Size();
|
|
|
|
if (count > 0)
|
|
{
|
|
FState *realstates = new FState[count];
|
|
int i;
|
|
int currange;
|
|
|
|
memcpy(realstates, &StateArray[0], count*sizeof(FState));
|
|
actor->OwnedStates = realstates;
|
|
actor->NumOwnedStates = count;
|
|
|
|
// adjust the state pointers
|
|
// In the case new states are added these must be adjusted, too!
|
|
FixStatePointers (actor, StateLabels);
|
|
|
|
for(i = currange = 0; i < count; i++)
|
|
{
|
|
// resolve labels and jumps
|
|
switch(realstates[i].DefineFlags)
|
|
{
|
|
case SDF_STOP: // stop
|
|
realstates[i].NextState = NULL;
|
|
break;
|
|
|
|
case SDF_WAIT: // wait
|
|
realstates[i].NextState = &realstates[i];
|
|
break;
|
|
|
|
case SDF_NEXT: // next
|
|
realstates[i].NextState = (i < count-1 ? &realstates[i+1] : &realstates[0]);
|
|
break;
|
|
|
|
case SDF_INDEX: // loop
|
|
realstates[i].NextState = &realstates[(size_t)realstates[i].NextState-1];
|
|
break;
|
|
|
|
case SDF_LABEL:
|
|
realstates[i].NextState = ResolveGotoLabel (defaults, actor->Class, (char *)realstates[i].NextState);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Fix state pointers that are gotos
|
|
ResolveGotoLabels (actor, defaults, StateLabels);
|
|
|
|
return count;
|
|
}
|
|
|
|
|
|
void DumpStateHelper(FStateLabels *StateList, const FString &prefix)
|
|
{
|
|
for (int i = 0; i < StateList->NumLabels; i++)
|
|
{
|
|
if (StateList->Labels[i].State != NULL)
|
|
{
|
|
const PClass *owner = FState::StaticFindStateOwner(StateList->Labels[i].State);
|
|
if (owner == NULL)
|
|
{
|
|
Printf(PRINT_LOG, "%s%s: invalid\n", prefix.GetChars(), StateList->Labels[i].Label.GetChars());
|
|
}
|
|
else
|
|
{
|
|
Printf(PRINT_LOG, "%s%s: %s.%d\n", prefix.GetChars(), StateList->Labels[i].Label.GetChars(),
|
|
owner->TypeName.GetChars(), StateList->Labels[i].State - owner->ActorInfo->OwnedStates);
|
|
}
|
|
}
|
|
if (StateList->Labels[i].Children != NULL)
|
|
{
|
|
DumpStateHelper(StateList->Labels[i].Children, prefix + '.' + StateList->Labels[i].Label.GetChars());
|
|
}
|
|
}
|
|
}
|
|
|
|
CCMD(dumpstates)
|
|
{
|
|
for (unsigned int i = 0; i < PClass::m_RuntimeActors.Size(); ++i)
|
|
{
|
|
FActorInfo *info = PClass::m_RuntimeActors[i]->ActorInfo;
|
|
Printf(PRINT_LOG, "State labels for %s\n", info->Class->TypeName.GetChars());
|
|
DumpStateHelper(info->StateList, "");
|
|
Printf(PRINT_LOG, "----------------------------\n");
|
|
}
|
|
}
|