changecommand.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/>.
 *
 */

#include "mutationofjb/commands/seqcommand.h"
#include "mutationofjb/gamedata.h"

namespace MutationOfJB {

union ChangeCommandValue {
    uint8 _byteVal;
    uint16 _wordVal;
    char _strVal[MAX_ENTITY_NAME_LENGTH + 1];
};

class ChangeCommand : public SeqCommand {
public:
    enum ChangeRegister {
        NM, // Name
        LT, // Destination scene ID
        SX, // Destination X
        SY, // Destination Y
        XX, // X
        YY, // Y
        XL, // Width
        YL, // Height
        WX, // Walk to X
        WY, // Walk to Y
        SP, //
        AC, // Active
        FA, // First animation
        FR,
        NA,
        FS,
        CA,
        DS, // Startup
        DL,
        ND, // Number of doors
        NO, // Number of objects
        NS, // Number of statics
        PF, // Palette rotation first
        PL, // Palette rotation last
        PD  // Palette rotation delay
    };

    enum ChangeOperation {
        SetValue,
        AddValue,
        SubtractValue
    };

    ChangeCommand(uint8 sceneId, uint8 entityId, ChangeRegister reg, ChangeOperation op, const ChangeCommandValue &val) :
        _sceneId(sceneId), _entityId(entityId), _register(reg), _operation(op), _value(val)
    {}
protected:
    const char *getRegisterAsString() const;
    Common::String getValueAsString() const;
    const char *getOperationAsString() const;

    uint8 _sceneId;
    uint8 _entityId;
    ChangeRegister _register;
    ChangeOperation _operation;
    ChangeCommandValue _value;
};

class ChangeCommandParser : public SeqCommandParser {
protected:
    bool parseValueString(const Common::String &valueString, bool changeEntity, uint8 &sceneId, uint8 &entityId, ChangeCommand::ChangeRegister &reg, ChangeCommand::ChangeOperation &op, ChangeCommandValue &ccv);
    int parseInteger(const char *val, ChangeCommand::ChangeOperation &op);
};

class ChangeObjectCommandParser : public ChangeCommandParser {
public:
    bool parse(const Common::String &line, ScriptParseContext &parseCtx, Command *&command) override;
};

class ChangeDoorCommandParser : public ChangeCommandParser {
public:
    bool parse(const Common::String &line, ScriptParseContext &parseCtx, Command *&command) override;
};

class ChangeStaticCommandParser : public ChangeCommandParser {
public:
    bool parse(const Common::String &line, ScriptParseContext &parseCtx, Command *&command) override;
};

class ChangeSceneCommandParser : public ChangeCommandParser {
public:
    bool parse(const Common::String &line, ScriptParseContext &parseCtx, Command *&command) override;
};

class ChangeDoorCommand : public ChangeCommand {
public:
    ChangeDoorCommand(uint8 sceneId, uint8 doorId, ChangeRegister reg, ChangeOperation op, const ChangeCommandValue &val)
        : ChangeCommand(sceneId, doorId, reg, op, val)
    {}
    ExecuteResult execute(ScriptExecutionContext &scriptExecCtx) override;
    Common::String debugString() const override;
};

class ChangeObjectCommand : public ChangeCommand {
public:
    ChangeObjectCommand(uint8 sceneId, uint8 objectId, ChangeRegister reg, ChangeOperation op, const ChangeCommandValue &val)
        : ChangeCommand(sceneId, objectId, reg, op, val)
    {}
    ExecuteResult execute(ScriptExecutionContext &scriptExecCtx) override;
    Common::String debugString() const override;
};

class ChangeStaticCommand : public ChangeCommand {
public:
    ChangeStaticCommand(uint8 sceneId, uint8 staticId, ChangeRegister reg, ChangeOperation op, const ChangeCommandValue &val)
        : ChangeCommand(sceneId, staticId, reg, op, val)
    {}
    ExecuteResult execute(ScriptExecutionContext &scriptExecCtx) override;
    Common::String debugString() const override;
};

class ChangeSceneCommand : public ChangeCommand {
public:
    ChangeSceneCommand(uint8 sceneId, uint8 staticId, ChangeRegister reg, ChangeOperation op, const ChangeCommandValue &val)
        : ChangeCommand(sceneId, staticId, reg, op, val)
    {}
    ExecuteResult execute(ScriptExecutionContext &scriptExecCtx) override;
    Common::String debugString() const override;
};

}