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author | Paul Gilbert | 2019-06-25 21:18:44 -0700 |
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committer | Paul Gilbert | 2019-07-06 15:27:07 -0700 |
commit | cd7cf4141425e3e77b164d2dbcbae8de1eacb035 (patch) | |
tree | 97caacd0a7e26488844ada4e7cd529cae482526a /engines/glk/alan3/alt_info.h | |
parent | cfd66173bad8bb23ba7ba2d531fc5e98872212ce (diff) | |
download | scummvm-rg350-cd7cf4141425e3e77b164d2dbcbae8de1eacb035.tar.gz scummvm-rg350-cd7cf4141425e3e77b164d2dbcbae8de1eacb035.tar.bz2 scummvm-rg350-cd7cf4141425e3e77b164d2dbcbae8de1eacb035.zip |
GLK: ALAN3: Initial files commit
Diffstat (limited to 'engines/glk/alan3/alt_info.h')
-rw-r--r-- | engines/glk/alan3/alt_info.h | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/engines/glk/alan3/alt_info.h b/engines/glk/alan3/alt_info.h new file mode 100644 index 0000000000..de99585018 --- /dev/null +++ b/engines/glk/alan3/alt_info.h @@ -0,0 +1,88 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#ifndef GLK_ALAN3_ALT_INFO +#define GLK_ALAN3_ALT_INFO + +/* An info node about the Verb Alternatives found and possibly executed */ + +#include "glk/alan3/types.h" +#include "glk/alan3/acode.h" +#include "glk/alan3/params.h" +#include "glk/alan3/parameter_position.h" + +namespace Glk { +namespace Alan3 { + +/* Constants */ + +#define GLOBAL_LEVEL (0) +#define LOCATION_LEVEL (1) +#define PARAMETER_LEVEL (2) + +#define NO_PARAMETER ((Aword)-1) +#define NO_INSTANCE ((Aword)-1) +#define NO_CLASS ((Aword)-1) + +/* tryCheck() flags */ +#define EXECUTE_CHECK_BODY_ON_FAIL TRUE +#define DONT_EXECUTE_CHECK_BODY_ON_FAIL FALSE + + +/* Types */ + +struct AltInfo { + bool end; /* Indicator of end in AltInfoArray, first empty has TRUE here */ + AltEntry *alt; + bool done; + Aint level; /* 0 - Global, 1 - location, 2 - parameter */ + Aid _class; /* In which class, only used for tracing */ + Aid instance; /* In which instance the Alternative was found, + used to set current.instance and tracing */ + Aid parameter; /* In which parameter, only used for tracing */ +}; + +typedef AltEntry *(*AltEntryFinder)(int verb, int parameterNumber, int theInstance, int theClass); + +typedef AltInfo AltInfoArray[]; + + + +/* Data */ + + +/* Functions */ +extern void primeAltInfo(AltInfo *altInfo, int level, int parameter, int instance, int cls); +extern bool executedOk(AltInfo *altInfo); +extern bool checkFailed(AltInfo *altInfo, bool execute); +extern bool canBeExecuted(AltInfo *altInfo); +extern AltInfo *duplicateAltInfoArray(AltInfoArray altInfos); +extern int lastAltInfoIndex(AltInfoArray altInfos); +extern bool anyCheckFailed(AltInfoArray altInfos, bool execute); +extern bool anythingToExecute(AltInfoArray altInfos); +extern bool possible(int verb, Parameter parameters[], ParameterPosition parameterPositions[]); +extern AltInfo *findAllAlternatives(int verb, Parameter parameters[]); + +} // End of namespace Alan3 +} // End of namespace Glk + +#endif |