gamecore.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 GAME_GAMECORE_H
#define GAME_GAMECORE_H
 
#include "prng.h"
 
#include <base/vmath.h>
 
#include <engine/shared/protocol.h>
 
#include <generated/protocol.h>
 
#include <game/teamscore.h>
 
#include <limits>
#include <set>
#include <vector>
 
class CCollision;
class CTeamsCore;
 
class CTuneParam
{
    int m_Value;
 
public:
    int Get() const { return m_Value; }
    CTuneParam &operator=(float v)
    {
        const float Fixed = v * 100.0f;
        if(Fixed >= static_cast<float>(std::numeric_limits<int>::min()) && Fixed < static_cast<float>(std::numeric_limits<int>::max()))
            m_Value = static_cast<int>(Fixed);
        else
            m_Value = std::numeric_limits<int>::min();
        return *this;
    }
    operator float() const { return m_Value / 100.0f; }
};
 
class CTuningParams
{
    static const char *ms_apNames[];
 
public:
    CTuningParams()
    {
#define MACRO_TUNING_PARAM(Name, ScriptName, Value, Description) m_##Name = (Value);
#include "tuning.h"
#undef MACRO_TUNING_PARAM
    }
 
#define MACRO_TUNING_PARAM(Name, ScriptName, Value, Description) CTuneParam m_##Name;
#include "tuning.h"
#undef MACRO_TUNING_PARAM
 
    static int Num()
    {
        return sizeof(CTuningParams) / sizeof(int);
    }
    int *NetworkArray() { return (int *)this; }
    const int *NetworkArray() const { return (const int *)this; }
    bool Set(int Index, float Value);
    bool Set(const char *pName, float Value);
    bool Get(int Index, float *pValue) const;
    bool Get(const char *pName, float *pValue) const;
    static const char *Name(int Index) { return ms_apNames[Index]; }
    float GetWeaponFireDelay(int Weapon) const;
 
    static const CTuningParams DEFAULT;
};
 
// Do not use these function unless for legacy code!
void StrToInts(int *pInts, size_t NumInts, const char *pStr);
bool IntsToStr(const int *pInts, size_t NumInts, char *pStr, size_t StrSize);
 
inline vec2 CalcPos(vec2 Pos, vec2 Velocity, float Curvature, float Speed, float Time)
{
    vec2 n;
    Time *= Speed;
    n.x = Pos.x + Velocity.x * Time;
    n.y = Pos.y + Velocity.y * Time + Curvature / 10000 * (Time * Time);
    return n;
}
 
template<typename T>
inline T SaturatedAdd(T Min, T Max, T Current, T Modifier)
{
    if(Modifier < 0)
    {
        if(Current < Min)
            return Current;
        Current += Modifier;
        if(Current < Min)
            Current = Min;
        return Current;
    }
    else
    {
        if(Current > Max)
            return Current;
        Current += Modifier;
        if(Current > Max)
            Current = Max;
        return Current;
    }
}
 
float VelocityRamp(float Value, float Start, float Range, float Curvature);
 
// hooking stuff
enum
{
    HOOK_RETRACTED = -1,
    HOOK_IDLE = 0,
    HOOK_RETRACT_START = 1,
    HOOK_RETRACT_END = 3,
    HOOK_FLYING = 4,
    HOOK_GRABBED = 5,
 
    COREEVENT_GROUND_JUMP = 0x01,
    COREEVENT_AIR_JUMP = 0x02,
    COREEVENT_HOOK_LAUNCH = 0x04,
    COREEVENT_HOOK_ATTACH_PLAYER = 0x08,
    COREEVENT_HOOK_ATTACH_GROUND = 0x10,
    COREEVENT_HOOK_HIT_NOHOOK = 0x20,
    COREEVENT_HOOK_RETRACT = 0x40,
};
 
// show others values - do not change them
enum
{
    SHOW_OTHERS_NOT_SET = -1, // show others value before it is set
    SHOW_OTHERS_OFF = 0, // show no other players in solo or other teams
    SHOW_OTHERS_ON = 1, // show all other players in solo and other teams
    SHOW_OTHERS_ONLY_TEAM = 2 // show players that are in solo and are in the same team
};
 
struct SSwitchers
{
    bool m_aStatus[NUM_DDRACE_TEAMS];
    bool m_Initial;
    int m_aEndTick[NUM_DDRACE_TEAMS];
    int m_aType[NUM_DDRACE_TEAMS];
    int m_aLastUpdateTick[NUM_DDRACE_TEAMS];
};
 
class CWorldCore
{
public:
    CWorldCore()
    {
        for(auto &pCharacter : m_apCharacters)
        {
            pCharacter = nullptr;
        }
        m_pPrng = nullptr;
    }
 
    int RandomOr0(int BelowThis) // NOLINT(readability-make-member-function-const)
    {
        if(BelowThis <= 1 || !m_pPrng)
        {
            return 0;
        }
        // This makes the random number slightly biased if `BelowThis`
        // is not a power of two, but we have decided that this is not
        // significant for DDNet and favored the simple implementation.
        return m_pPrng->RandomBits() % BelowThis;
    }
 
    class CCharacterCore *m_apCharacters[MAX_CLIENTS];
    CPrng *m_pPrng;
 
    void InitSwitchers(int HighestSwitchNumber);
    std::vector<SSwitchers> m_vSwitchers;
};
 
typedef std::function<void(int ClientId, bool DisallowReset)> FAntiPingInterfereCallback;
 
class CCharacterCore
{
    CWorldCore *m_pWorld = nullptr;
    CCollision *m_pCollision;
 
public:
    static constexpr float PhysicalSize() { return 28.0f; }
    static constexpr vec2 PhysicalSizeVec2() { return vec2(28.0f, 28.0f); }
    vec2 m_Pos;
    vec2 m_Vel;
 
    vec2 m_HookPos;
    vec2 m_HookDir;
    vec2 m_HookTeleBase;
    int m_HookTick;
    int m_HookState;
    std::set<int> m_AttachedPlayers;
    int HookedPlayer() const { return m_HookedPlayer; }
    void SetHookedPlayer(int HookedPlayer);
 
    int m_ActiveWeapon;
    class CWeaponStat
    {
    public:
        int m_AmmoRegenStart;
        int m_Ammo;
        int m_Ammocost;
        bool m_Got;
    } m_aWeapons[NUM_WEAPONS];
 
    // ninja
    struct
    {
        vec2 m_ActivationDir;
        int m_ActivationTick;
        int m_CurrentMoveTime;
        int m_OldVelAmount;
    } m_Ninja;
 
    bool m_NewHook;
 
    int m_Jumped;
    // m_JumpedTotal counts the jumps performed in the air
    int m_JumpedTotal;
    int m_Jumps;
 
    int m_Direction;
    int m_Angle;
    CNetObj_PlayerInput m_Input;
 
    int m_TriggeredEvents;
 
    void Init(CWorldCore *pWorld, CCollision *pCollision, CTeamsCore *pTeams = nullptr);
    void SetCoreWorld(CWorldCore *pWorld, CCollision *pCollision, CTeamsCore *pTeams);
    void Reset();
    void TickDeferred();
    void Tick(bool UseInput, bool DoDeferredTick = true);
    void Move();
 
    void Read(const CNetObj_CharacterCore *pObjCore);
    void Write(CNetObj_CharacterCore *pObjCore) const;
    void Quantize();
 
    // DDRace
    int m_Id;
    bool m_Reset;
    CCollision *Collision() { return m_pCollision; }
 
    int m_Colliding;
    bool m_LeftWall;
 
    // DDNet Character
    void SetTeamsCore(CTeamsCore *pTeams);
    void ReadDDNet(const CNetObj_DDNetCharacter *pObjDDNet);
    bool m_Solo;
    bool m_Jetpack;
    bool m_CollisionDisabled;
    bool m_EndlessHook;
    bool m_EndlessJump;
    bool m_HammerHitDisabled;
    bool m_GrenadeHitDisabled;
    bool m_LaserHitDisabled;
    bool m_ShotgunHitDisabled;
    bool m_HookHitDisabled;
    bool m_Super;
    bool m_Invincible;
    bool m_HasTelegunGun;
    bool m_HasTelegunGrenade;
    bool m_HasTelegunLaser;
    int m_FreezeStart;
    int m_FreezeEnd;
    bool m_IsInFreeze;
    bool m_DeepFrozen;
    bool m_LiveFrozen;
    CTuningParams m_Tuning;
 
    // clientside only: antiping
    void SetAntiPingInterfereCallback(FAntiPingInterfereCallback Callback);
 
private:
    CTeamsCore *m_pTeams;
    int m_MoveRestrictions;
    int m_HookedPlayer;
    static bool IsSwitchActiveCb(unsigned char Number, void *pUser);
 
    FAntiPingInterfereCallback m_AntiPingInterfereCallback = [](int ClientId, bool DisallowReset) {};
};
 
// input count
struct CInputCount
{
    int m_Presses;
    int m_Releases;
};
 
inline CInputCount CountInput(int Prev, int Cur)
{
    CInputCount c = {0, 0};
    Prev &= INPUT_STATE_MASK;
    Cur &= INPUT_STATE_MASK;
    int i = Prev;
 
    while(i != Cur)
    {
        i = (i + 1) & INPUT_STATE_MASK;
        if(i & 1)
            c.m_Presses++;
        else
            c.m_Releases++;
    }
 
    return c;
}
 
#endif