config.h

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/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
/* If you are missing that file, acquire a complete release at teeworlds.com.                */
#ifndef ENGINE_SHARED_CONFIG_H
#define ENGINE_SHARED_CONFIG_H
 
#include <base/detect.h>
 
#include <engine/config.h>
#include <engine/console.h>
#include <engine/shared/memheap.h>
 
#include <vector>
 
// include protocol for MAX_CLIENT used in config_variables
#include <engine/shared/protocol.h>
 
static constexpr const char *DEFAULT_SAVED_RCON_USER = "local-server";
 
#define CONFIG_FILE "settings_ddnet.cfg"
#define AUTOEXEC_FILE "autoexec.cfg"
#define AUTOEXEC_CLIENT_FILE "autoexec_client.cfg"
#define AUTOEXEC_SERVER_FILE "autoexec_server.cfg"
 
class CConfig
{
public:
#define MACRO_CONFIG_INT(Name, ScriptName, Def, Min, Max, Flags, Desc) \
    static constexpr int ms_##Name = Def; \
    int m_##Name;
#define MACRO_CONFIG_COL(Name, ScriptName, Def, Flags, Desc) \
    static constexpr unsigned ms_##Name = Def; \
    unsigned m_##Name;
#define MACRO_CONFIG_STR(Name, ScriptName, Len, Def, Flags, Desc) \
    static constexpr const char *ms_p##Name = Def; \
    char m_##Name[Len]; // Flawfinder: ignore
#include "config_variables.h"
#undef MACRO_CONFIG_INT
#undef MACRO_CONFIG_COL
#undef MACRO_CONFIG_STR
};
 
extern CConfig g_Config;
 
enum
{
    CFGFLAG_SAVE = 1 << 0,
    CFGFLAG_CLIENT = 1 << 1,
    CFGFLAG_SERVER = 1 << 2,
    CFGFLAG_STORE = 1 << 3,
    CFGFLAG_MASTER = 1 << 4,
    CFGFLAG_ECON = 1 << 5,
    // DDRace
 
    CMDFLAG_TEST = 1 << 6,
    CFGFLAG_CHAT = 1 << 7,
    CFGFLAG_GAME = 1 << 8,
    CFGFLAG_NONTEEHISTORIC = 1 << 9,
    CFGFLAG_COLLIGHT = 1 << 10,
    CFGFLAG_COLLIGHT7 = 1 << 11,
    CFGFLAG_COLALPHA = 1 << 12,
    CFGFLAG_INSENSITIVE = 1 << 13,
    CMDFLAG_PRACTICE = 1 << 14,
};
 
struct SConfigVariable
{
    enum EVariableType
    {
        VAR_INT,
        VAR_COLOR,
        VAR_STRING,
    };
    IConsole *m_pConsole;
    const char *m_pScriptName;
    EVariableType m_Type;
    int m_Flags;
    const char *m_pHelp;
    // Note that this only applies to the console command and the SetValue function,
    // but the underlying config variable can still be modified programatically.
    bool m_ReadOnly = false;
 
    SConfigVariable(IConsole *pConsole, const char *pScriptName, EVariableType Type, int Flags, const char *pHelp) :
        m_pConsole(pConsole),
        m_pScriptName(pScriptName),
        m_Type(Type),
        m_Flags(Flags),
        m_pHelp(pHelp)
    {
    }
 
    virtual ~SConfigVariable() = default;
 
    virtual void Register() = 0;
    virtual bool IsDefault() const = 0;
    virtual void Serialize(char *pOut, size_t Size) const = 0;
    virtual void ResetToDefault() = 0;
    virtual void ResetToOld() = 0;
 
protected:
    void ExecuteLine(const char *pLine) const;
    bool CheckReadOnly() const;
};
 
struct SIntConfigVariable : public SConfigVariable
{
    int *m_pVariable;
    int m_Default;
    int m_Min;
    int m_Max;
    int m_OldValue;
 
    SIntConfigVariable(IConsole *pConsole, const char *pScriptName, EVariableType Type, int Flags, const char *pHelp, int *pVariable, int Default, int Min, int Max) :
        SConfigVariable(pConsole, pScriptName, Type, Flags, pHelp),
        m_pVariable(pVariable),
        m_Default(Default),
        m_Min(Min),
        m_Max(Max),
        m_OldValue(Default)
    {
        *m_pVariable = m_Default;
    }
 
    ~SIntConfigVariable() override = default;
 
    static void CommandCallback(IConsole::IResult *pResult, void *pUserData);
    void Register() override;
    bool IsDefault() const override;
    void Serialize(char *pOut, size_t Size, int Value) const;
    void Serialize(char *pOut, size_t Size) const override;
    void SetValue(int Value);
    void ResetToDefault() override;
    void ResetToOld() override;
};
 
struct SColorConfigVariable : public SConfigVariable
{
    unsigned *m_pVariable;
    unsigned m_Default;
    float m_DarkestLighting;
    bool m_Alpha;
    unsigned m_OldValue;
 
    SColorConfigVariable(IConsole *pConsole, const char *pScriptName, EVariableType Type, int Flags, const char *pHelp, unsigned *pVariable, unsigned Default) :
        SConfigVariable(pConsole, pScriptName, Type, Flags, pHelp),
        m_pVariable(pVariable),
        m_Default(Default),
        m_Alpha(Flags & CFGFLAG_COLALPHA),
        m_OldValue(Default)
    {
        *m_pVariable = m_Default;
        if(Flags & CFGFLAG_COLLIGHT)
        {
            m_DarkestLighting = ColorHSLA::DARKEST_LGT;
        }
        else if(Flags & CFGFLAG_COLLIGHT7)
        {
            m_DarkestLighting = ColorHSLA::DARKEST_LGT7;
        }
        else
        {
            m_DarkestLighting = 0.0f;
        }
    }
 
    ~SColorConfigVariable() override = default;
 
    static void CommandCallback(IConsole::IResult *pResult, void *pUserData);
    void Register() override;
    bool IsDefault() const override;
    void Serialize(char *pOut, size_t Size, unsigned Value) const;
    void Serialize(char *pOut, size_t Size) const override;
    void SetValue(unsigned Value);
    void ResetToDefault() override;
    void ResetToOld() override;
};
 
struct SStringConfigVariable : public SConfigVariable
{
    char *m_pStr;
    const char *m_pDefault;
    size_t m_MaxSize;
    char *m_pOldValue;
 
    SStringConfigVariable(IConsole *pConsole, const char *pScriptName, EVariableType Type, int Flags, const char *pHelp, char *pStr, const char *pDefault, size_t MaxSize, char *pOldValue);
    ~SStringConfigVariable() override = default;
 
    static void CommandCallback(IConsole::IResult *pResult, void *pUserData);
    void Register() override;
    bool IsDefault() const override;
    void Serialize(char *pOut, size_t Size, const char *pValue) const;
    void Serialize(char *pOut, size_t Size) const override;
    void SetValue(const char *pValue);
    void ResetToDefault() override;
    void ResetToOld() override;
};
 
class CConfigManager : public IConfigManager
{
    IConsole *m_pConsole;
    class IStorage *m_pStorage;
 
    IOHANDLE m_ConfigFile;
    bool m_Failed;
 
    struct SCallback
    {
        SAVECALLBACKFUNC m_pfnFunc;
        void *m_pUserData;
 
        SCallback(SAVECALLBACKFUNC pfnFunc, void *pUserData) :
            m_pfnFunc(pfnFunc),
            m_pUserData(pUserData)
        {
        }
    };
    std::vector<SCallback> m_vCallbacks;
 
    std::vector<SConfigVariable *> m_vpAllVariables;
    std::vector<SConfigVariable *> m_vpGameVariables;
    std::vector<const char *> m_vpUnknownCommands;
    CHeap m_ConfigHeap;
 
    static void Con_Reset(IConsole::IResult *pResult, void *pUserData);
    static void Con_Toggle(IConsole::IResult *pResult, void *pUserData);
    static void Con_ToggleStroke(IConsole::IResult *pResult, void *pUserData);
 
public:
    CConfigManager();
 
    void Init() override;
    void Reset(const char *pScriptName) override;
    void ResetGameSettings() override;
    void SetReadOnly(const char *pScriptName, bool ReadOnly) override;
    bool Save() override;
    CConfig *Values() override { return &g_Config; }
 
    void RegisterCallback(SAVECALLBACKFUNC pfnFunc, void *pUserData) override;
 
    void WriteLine(const char *pLine) override;
 
    void StoreUnknownCommand(const char *pCommand) override;
 
    void PossibleConfigVariables(const char *pStr, int FlagMask, POSSIBLECFGFUNC pfnCallback, void *pUserData) override;
};
 
#endif