script_move.h

/* 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 3 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, see <http://www.gnu.org/licenses/>.
 *
 */
 
#ifndef TWINE_SCRIPTMOVE_H
#define TWINE_SCRIPTMOVE_H
 
#include "common/scummsys.h"
#include "twine/scene/actor.h"
 
namespace TwinE {
 
struct MoveScriptContext {
    int32 actorIdx;
    ActorStruct *actor;
    int32 bigSampleRepeat = 1;
 
    Common::MemorySeekableReadWriteStream stream;
 
    MoveScriptContext(int32 _actorIdx, ActorStruct *_actor) : actorIdx(_actorIdx), actor(_actor), stream(actor->_ptrTrack, actor->_moveScriptSize) {
        assert(actor->_offsetTrack >= 0);
        stream.skip(actor->_offsetTrack);
    }
 
    void undo(int32 bytes) {
        assert(bytes >= 0);
        // the additional 1 byte is for the opcode
        stream.rewind(bytes + 1);
    }
};
 
typedef int32 ScriptMoveFunc(TwinEEngine *engine, MoveScriptContext &ctx);
 
struct ScriptMoveFunction {
    const char *name;
    ScriptMoveFunc *function;
};
 
class ScriptMove {
private:
    TwinEEngine *_engine;
    const ScriptMoveFunction* _functionMap;
    size_t _functionMapSize;
 
public:
    static int32 mEMPTY(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mEND(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mNOP(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mBODY(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mANIM(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mGOTO_POINT(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mWAIT_ANIM(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mLOOP(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mANGLE(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mPOS_POINT(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mLABEL(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mGOTO(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mSTOP(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mGOTO_SYM_POINT(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mWAIT_NUM_ANIM(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mSAMPLE(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mGOTO_POINT_3D(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mSPEED(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mBACKGROUND(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mWAIT_NUM_SECOND(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mNO_BODY(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mBETA(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mOPEN_GENERIC(TwinEEngine *engine, MoveScriptContext &ctx, int32 angle);
    static int32 mOPEN_LEFT(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mOPEN_RIGHT(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mOPEN_UP(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mOPEN_DOWN(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mCLOSE(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mWAIT_DOOR(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mSAMPLE_RND(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mSAMPLE_ALWAYS(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mSAMPLE_STOP(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mPLAY_FLA(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mREPEAT_SAMPLE(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mSIMPLE_SAMPLE(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mFACE_HERO(TwinEEngine *engine, MoveScriptContext &ctx);
    static int32 mANGLE_RND(TwinEEngine *engine, MoveScriptContext &ctx);
 
public:
    ScriptMove(TwinEEngine *engine, const ScriptMoveFunction* functionMap, size_t entries);
    virtual ~ScriptMove() {}
    void doTrack(int32 actorIdx);
};
 
} // namespace TwinE
 
#endif