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id.cpp

/* 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.
 *
 * $URL: https://scummvm.svn.sourceforge.net/svnroot/scummvm/scummvm/tags/release-1-1-1/engines/agi/id.cpp $
 * $Id: id.cpp 46942 2010-01-03 20:15:44Z sev $
 *
 */

#include "agi/agi.h"
#include "agi/opcodes.h"

namespace Agi {

//
// Currently, there is no known difference between v3.002.098 -> v3.002.149
// So version emulated;
//
// 0x0086,
// 0x0149
//

/**
 *
 */
int AgiEngine::setupV2Game(int ver) {
      int ec = errOK;

      // Should this go above the previous lines, so we can force emulation versions
      // even for AGDS games? -- dsymonds
      if (getFeatures() & GF_AGDS)
            setVersion(ver = 0x2440);     // ALL AGDS games built for 2.440

      report("Setting up for version 0x%04X\n", ver);

      // 'quit' takes 0 args for 2.089
      if (ver == 0x2089)
            logicNamesCmd[0x86].numArgs = 0;

      // 'print.at' and 'print.at.v' take 3 args before 2.272
      // This is documented in the specs as only < 2.440, but it seems
      // that KQ3 (2.272) needs a 'print.at' taking 4 args.
      if (ver < 0x2272) {
            logicNamesCmd[0x97].numArgs = 3;
            logicNamesCmd[0x98].numArgs = 3;
      }

      return ec;
}

/**
 *
 */
int AgiEngine::setupV3Game(int ver) {
      int ec = errOK;

      report("Setting up for version 0x%04X\n", ver);

      // 'unknown176' takes 1 arg for 3.002.086, not 0 args.
      // 'unknown173' also takes 1 arg for 3.002.068, not 0 args.
      // Is this actually used anywhere? -- dsymonds
      if (ver == 0x3086) {
            logicNamesCmd[0xb0].numArgs = 1;
            logicNamesCmd[0xad].numArgs = 1;
      }

      // FIXME: Apply this fix to other games also that use 2 arguments for command 182.
      // 'adj.ego.move.to.x.y' (i.e. command 182) takes 2 arguments for at least the
      // Amiga Gold Rush! (v2.05 1989-03-09) using Amiga AGI 2.316. Amiga's Gold Rush
      // has been set to use AGI 3.149 in ScummVM so that's why this initialization is
      // here and not in setupV2Game.
      if (getGameID() == GID_GOLDRUSH && getPlatform() == Common::kPlatformAmiga)
            logicNamesCmd[182].numArgs = 2;

      return ec;
}

} // End of namespace Agi

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