mirror of
https://github.com/libretro/scummvm.git
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268 lines
8.8 KiB
C++
268 lines
8.8 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program 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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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#ifndef PARALLACTION_EXEC_H
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#define PARALLACTION_EXEC_H
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#include "common/util.h"
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#include "parallaction/objects.h"
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namespace Parallaction {
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class Parallaction_ns;
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class Parallaction_br;
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/* NOTE: CommandExec and ProgramExec perform similar tasks on different data.
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CommandExec executes commands found in location scripts, while ProgramExec
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runs animation programs.
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The main difference is how suspension is handled. CommandExec is coded with
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the assumption that there may be at most one suspended list of commands at any
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moment, and thus stores the suspended context itself. It also offers a
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runSuspended() routine that resumes execution on request.
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ProgramExec instead stores the suspension information in the programs themselves.
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Programs are in fact meant to be run (almost) regularly on each frame .
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*/
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struct CommandContext {
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CommandPtr _cmd;
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ZonePtr _z;
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// TODO: add a way to invoke CommandExec::suspend() from the context. With that
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// in place, opcodes dependency on CommandExec would be zero, and they could
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// be moved into a Game object, together with the non-infrastructural code now
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// in Parallaction_XX
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};
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typedef Common::Functor1<CommandContext&, void> CommandOpcode;
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typedef Common::Array<const CommandOpcode*> CommandOpcodeSet;
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#define DECLARE_UNQUALIFIED_COMMAND_OPCODE(op) void cmdOp_##op(CommandContext &)
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struct ProgramContext {
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AnimationPtr _anim;
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ProgramPtr _program;
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InstructionPtr _inst;
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uint32 _ip;
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uint16 _modCounter;
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bool _suspend;
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};
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typedef Common::Functor1<ProgramContext&, void> ProgramOpcode;
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typedef Common::Array<const ProgramOpcode*> ProgramOpcodeSet;
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#define DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(op) void instOp_##op(ProgramContext &)
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template <class OpcodeSet>
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class Exec {
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protected:
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OpcodeSet _opcodes;
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typedef typename OpcodeSet::iterator OpIt;
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public:
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virtual ~Exec() {
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for (OpIt i = _opcodes.begin(); i != _opcodes.end(); ++i)
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delete *i;
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_opcodes.clear();
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}
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};
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class CommandExec : public Exec<CommandOpcodeSet> {
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protected:
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Parallaction *_vm;
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CommandContext _ctxt;
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ZonePtr _execZone;
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bool _running;
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bool _suspend;
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struct SuspendedContext {
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bool _valid;
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CommandList::iterator _first;
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CommandList::iterator _last;
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ZonePtr _zone;
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} _suspendedCtxt;
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void runList(CommandList::iterator first, CommandList::iterator last);
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void createSuspendList(CommandList::iterator first, CommandList::iterator last);
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void cleanSuspendedList();
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public:
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CommandExec(Parallaction *vm);
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void run(CommandList &list, ZonePtr z = ZonePtr());
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void runSuspended();
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void suspend();
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};
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class CommandExec_ns : public CommandExec {
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protected:
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Parallaction_ns *_vm;
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(invalid);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(set);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(clear);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(start);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(speak);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(get);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(location);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(open);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(close);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(on);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(off);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(call);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(toggle);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(drop);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(quit);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(move);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(stop);
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public:
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CommandExec_ns(Parallaction_ns* vm);
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};
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class CommandExec_br : public CommandExec {
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protected:
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Parallaction_br *_vm;
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(invalid);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(set);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(clear);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(speak);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(get);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(toggle);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(quit);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(location);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(open);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(close);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(on);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(off);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(call);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(drop);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(move);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(start);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(stop);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(character);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(followme);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(onmouse);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(offmouse);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(add);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(leave);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(inc);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(dec);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(ifeq);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(iflt);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(ifgt);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(let);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(music);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(fix);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(unfix);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(zeta);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(scroll);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(swap);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(give);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(text);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(part);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(testsfx);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(ret);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(onsave);
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DECLARE_UNQUALIFIED_COMMAND_OPCODE(offsave);
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public:
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CommandExec_br(Parallaction_br* vm);
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};
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class ProgramExec : public Exec<ProgramOpcodeSet> {
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protected:
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ProgramContext _ctxt;
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uint16 _modCounter;
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const char **_instructionNames;
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void runScript(ProgramPtr script, AnimationPtr a);
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public:
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void runScripts(ProgramList::iterator first, ProgramList::iterator last);
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ProgramExec();
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};
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class ProgramExec_ns : public ProgramExec {
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protected:
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Parallaction_ns *_vm;
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(invalid);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(on);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(off);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(loop);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(endloop);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(show);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(call);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(inc);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(set);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(put);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(wait);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(start);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(sound);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(move);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(endscript);
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public:
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ProgramExec_ns(Parallaction_ns *vm);
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};
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class ProgramExec_br : public ProgramExec {
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protected:
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Parallaction_br *_vm;
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(invalid);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(loop);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(endloop);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(show);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(call);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(endscript);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(on);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(off);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(inc);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(dec);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(set);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(put);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(wait);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(start);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(process);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(move);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(color);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(mask);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(print);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(text);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(mul);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(div);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(ifeq);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(iflt);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(ifgt);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(endif);
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DECLARE_UNQUALIFIED_INSTRUCTION_OPCODE(stop);
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public:
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ProgramExec_br(Parallaction_br *vm);
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};
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} // namespace Parallaction
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#endif
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