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/* 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.
*
*/
#include "illusions/illusions.h"
#include "illusions/scriptopcodes.h"
#include "illusions/scriptman.h"
#include "illusions/scriptresource.h"
#include "illusions/scriptthread.h"
namespace Illusions {
// ScriptOpcodes
ScriptOpcodes::ScriptOpcodes(IllusionsEngine *vm)
: _vm(vm) {
initOpcodes();
}
ScriptOpcodes::~ScriptOpcodes() {
freeOpcodes();
}
void ScriptOpcodes::execOpcode(ScriptThread *scriptThread, OpCall &opCall) {
if (!_opcodes[opCall._op])
error("ScriptOpcodes::execOpcode() Unimplemented opcode %d", opCall._op);
debug("execOpcode(%d)", opCall._op);
(*_opcodes[opCall._op])(scriptThread, opCall);
}
typedef Common::Functor2Mem<ScriptThread*, OpCall&, void, ScriptOpcodes> ScriptOpcodeI;
#define OPCODE(op, func) _opcodes[op] = new ScriptOpcodeI(this, &ScriptOpcodes::func);
void ScriptOpcodes::initOpcodes() {
// First clear everything
for (uint i = 0; i < 256; ++i)
_opcodes[i] = 0;
// Register opcodes
OPCODE(42, opIncBlockCounter);
OPCODE(126, opDebug126);
}
#undef OPCODE
void ScriptOpcodes::freeOpcodes() {
for (uint i = 0; i < 256; ++i)
delete _opcodes[i];
}
// Opcodes
// Convenience macros
#define ARG_SKIP(x) opCall.skip(x);
#define ARG_INT16(name) int16 name = opCall.readSint16(); debug("ARG_INT16(" #name " = %d)", name);
#define ARG_UINT32(name) uint32 name = opCall.readUint32(); debug("ARG_UINT32(" #name " = %d)", name);
void ScriptOpcodes::opIncBlockCounter(ScriptThread *scriptThread, OpCall &opCall) {
ARG_INT16(index)
byte value = _vm->_scriptMan->_scriptResource->_blockCounters.get(index + 1);
if (value <= 63)
_vm->_scriptMan->_scriptResource->_blockCounters.set(index + 1, value);
}
void ScriptOpcodes::opDebug126(ScriptThread *scriptThread, OpCall &opCall) {
// NOTE Prints some debug text
}
} // End of namespace Illusions
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