assaultcube-/source/src/entity.h

enum                            // static entity types
{
    NOTUSED = 0,                // entity slot not in use in map
    LIGHT,                      // lightsource, attr1 = radius, attr2 = intensity
    PLAYERSTART,                // attr1 = angle, attr2 = team
    I_CLIPS, I_AMMO, I_GRENADE,
    I_HEALTH, I_ARMOUR, I_AKIMBO,
    MAPMODEL,                   // attr1 = angle, attr2 = idx
    CARROT,                     // attr1 = tag, attr2 = type
    LADDER,
    CTF_FLAG,                   // attr1 = angle, attr2 = red/blue
    SOUND,
    CLIP,
    PLCLIP,
    MAXENTTYPES
};

extern const char *entnames[MAXENTTYPES];
#define isitem(i) ((i) >= I_CLIPS && (i) <= I_AKIMBO)

struct persistent_entity        // map entity
{
    short x, y, z;              // cube aligned position
    short attr1;
    uchar type;                 // type is one of the above
    uchar attr2, attr3, attr4;
    persistent_entity(short x, short y, short z, uchar type, short attr1, uchar attr2, uchar attr3, uchar attr4) : x(x), y(y), z(z), attr1(attr1), type(type), attr2(attr2), attr3(attr3), attr4(attr4) {}
    persistent_entity() {}
};

struct entity : persistent_entity
{
    bool spawned;               //the only dynamic state of a map entity
    entity(short x, short y, short z, uchar type, short attr1, uchar attr2, uchar attr3, uchar attr4) : persistent_entity(x, y, z, type, attr1, attr2, attr3, attr4), spawned(false) {}
    entity() {}
    bool fitsmode(int gamemode) { return !m_noitems && isitem(type) && !(m_noitemsnade && type!=I_GRENADE) && !(m_pistol && type==I_AMMO); }
    void transformtype(int gamemode)
    {
        if(m_noitemsnade && type==I_CLIPS) type = I_GRENADE;
        else if(m_pistol && type==I_AMMO) type = I_CLIPS;
    }
};

enum { GUN_KNIFE = 0, GUN_PISTOL, GUN_RIFLE, GUN_SHOTGUN, GUN_SUBGUN, GUN_SNIPER, GUN_ASSAULT, GUN_GRENADE, GUN_AKIMBO, NUMGUNS };
#define reloadable_gun(g) (g != GUN_KNIFE && g != GUN_GRENADE)

#define SGRAYS 21
#define SGSPREAD 2
#define EXPDAMRAD 10

struct itemstat { int add, start, max, sound; };
extern itemstat ammostats[NUMGUNS];

extern itemstat powerupstats[I_ARMOUR-I_HEALTH+1];

struct guninfo { string modelname; short sound, reload, reloadtime, attackdelay, damage, projspeed, part, spread, recoil, magsize, mdl_kick_rot, mdl_kick_back, recoilincrease, recoilbase, maxrecoil, recoilbackfade, pushfactor; bool isauto; };
extern guninfo guns[NUMGUNS];

static inline int reloadtime(int gun) { return guns[gun].reloadtime; }
static inline int attackdelay(int gun) { return guns[gun].attackdelay; }
static inline int magsize(int gun) { return guns[gun].magsize; }

enum { TEAM_CLA = 0, TEAM_RVSF, TEAM_CLA_SPECT, TEAM_RVSF_SPECT, TEAM_SPECT, TEAM_NUM, TEAM_ANYACTIVE };
extern const char *teamnames[TEAM_NUM+1];
extern const char *teamnames_s[TEAM_NUM+1];

#define TEAM_VOID TEAM_NUM
#define isteam(a,b)   (m_teammode && (a) == (b))
#define team_opposite(o) (team_isvalid(o) && (o) < TEAM_SPECT ? (o) ^ 1 : TEAM_SPECT)
#define team_base(t) ((t) & 1)
#define team_basestring(t) ((t) == 1 ? teamnames[1] : ((t) == 0 ? teamnames[0] : "SPECT"))
#define team_isvalid(t) ((int(t)) >= 0 && (t) < TEAM_NUM)
#define team_isactive(t) ((t) == TEAM_CLA || (t) == TEAM_RVSF)
#define team_isspect(t) ((t) > TEAM_RVSF && (t) < TEAM_VOID)
#define team_group(t) ((t) == TEAM_SPECT ? TEAM_SPECT : team_base(t))
#define team_tospec(t) ((t) == TEAM_SPECT ? TEAM_SPECT : team_base(t) + TEAM_CLA_SPECT - TEAM_CLA)
// note: team_isactive and team_base can/should be used to check the limits for arrays of size '2'
static inline const char *team_string(int t, bool abbr = false) { const char **n = abbr ? teamnames_s : teamnames; return team_isvalid(t) ? n[t] : n[TEAM_NUM]; }

enum { ENT_PLAYER = 0, ENT_BOT, ENT_CAMERA, ENT_BOUNCE };
enum { CS_ALIVE = 0, CS_DEAD, CS_SPAWNING, CS_LAGGED, CS_EDITING, CS_SPECTATE };
enum { CR_DEFAULT = 0, CR_ADMIN };
enum { SM_NONE = 0, SM_DEATHCAM, SM_FOLLOW1ST, SM_FOLLOW3RD, SM_FOLLOW3RD_TRANSPARENT, SM_FLY, SM_NUM };
enum { FPCN_VOID = -3, FPCN_DEATHCAM = -2, FPCN_FLY = -1 };

class worldobject
{
public:
    virtual ~worldobject() {};
};

class physent : public worldobject
{
public:
    vec o, vel;                         // origin, velocity
    vec deltapos, newpos;                       // movement interpolation
    float yaw, pitch, roll;             // used as vec in one place
    float pitchvel;
    float maxspeed;                     // cubes per second, 24 for player
    int timeinair;                      // used for fake gravity
    float radius, eyeheight, maxeyeheight, aboveeye;  // bounding box size
    bool inwater;
    bool onfloor, onladder, jumpnext, crouching, trycrouch, cancollide, stuck;
    int lastjump;
    int lastsplash;
    char move, strafe;
    uchar state, type;
    float eyeheightvel;

    physent() : o(0, 0, 0), deltapos(0, 0, 0), newpos(0, 0, 0), yaw(270), pitch(0), roll(0), pitchvel(0),
                crouching(false), trycrouch(false), cancollide(true), stuck(false), lastjump(0), lastsplash(0), state(CS_ALIVE)
    {
        reset();
    }
    virtual ~physent() {}

    void resetinterp()
    {
        newpos = o;
        newpos.z -= eyeheight;
        deltapos = vec(0, 0, 0);
    }

    void reset()
    {
        vel.x = vel.y = vel.z = eyeheightvel = 0.0f;
        move = strafe = 0;
        timeinair = lastjump = lastsplash = 0;
        onfloor = onladder = inwater = jumpnext = crouching = trycrouch = stuck = false;
    }

    virtual void oncollision() {}
    virtual void onmoved(const vec &dist) {}
};

class dynent : public physent                 // animated ent
{
public:
    bool k_left, k_right, k_up, k_down;         // see input code

    animstate prev[2], current[2];              // md2's need only [0], md3's need both for the lower&upper model
    int lastanimswitchtime[2];
    void *lastmodel[2];
    int lastrendered;

    void stopmoving()
    {
        k_left = k_right = k_up = k_down = jumpnext = false;
        move = strafe = 0;
    }

    void resetanim()
    {
        loopi(2)
        {
            prev[i].reset();
            current[i].reset();
            lastanimswitchtime[i] = -1;
            lastmodel[i] = NULL;
        }
        lastrendered = 0;
    }

    void reset()
    {
        physent::reset();
        stopmoving();
    }

    dynent() { reset(); resetanim(); }
    virtual ~dynent() {}
};

#define MAXNAMELEN 15

class bounceent;

#define POSHIST_SIZE 7

struct poshist
{
    int nextupdate, curpos, numpos;
    vec pos[POSHIST_SIZE];

    poshist() : nextupdate(0) { reset(); }

    const int size() const { return numpos; }

    void reset()
    {
        curpos = 0;
        numpos = 0;
    }

    void addpos(const vec &o)
    {
        pos[curpos] = o;
        curpos++;
        if(curpos>=POSHIST_SIZE) curpos = 0;
        if(numpos<POSHIST_SIZE) numpos++;
    }

    const vec &getpos(int i) const
    {
        i = curpos-1-i;
        if(i < 0) i += POSHIST_SIZE;
        return pos[i];
    }

    void update(const vec &o, int lastmillis)
    {
        if(lastmillis<nextupdate) return;
        if(o.dist(pos[0]) >= 4.0f) addpos(o);
        nextupdate = lastmillis + 100;
    }
};

class playerstate
{
public:
    int health, armour;
    int primary, nextprimary;
    int gunselect;
    bool akimbo;
    int ammo[NUMGUNS], mag[NUMGUNS], gunwait[NUMGUNS];

    playerstate() : primary(GUN_ASSAULT), nextprimary(GUN_ASSAULT) {}
    virtual ~playerstate() {}

    itemstat &itemstats(int type)
    {
        switch(type)
        {
            case I_CLIPS: return ammostats[GUN_PISTOL];
            case I_AMMO: return ammostats[primary];
            case I_GRENADE: return ammostats[GUN_GRENADE];
            case I_AKIMBO: return ammostats[GUN_AKIMBO];
            case I_HEALTH: return powerupstats[0]; // FIXME: unify
            case I_ARMOUR: return powerupstats[1];
            default:
                return *(itemstat *)0;
        }
    }

    bool canpickup(int type)
    {
        switch(type)
        {
            case I_CLIPS: return ammo[akimbo ? GUN_AKIMBO : GUN_PISTOL]<ammostats[akimbo ? GUN_AKIMBO : GUN_PISTOL].max;
            case I_AMMO: return ammo[primary]<ammostats[primary].max;
            case I_GRENADE: return mag[GUN_GRENADE]<ammostats[GUN_GRENADE].max;
            case I_HEALTH: return health<powerupstats[type-I_HEALTH].max;
            case I_ARMOUR: return armour<powerupstats[type-I_HEALTH].max;
            case I_AKIMBO: return !akimbo;
            default: return false;
        }
    }

    void additem(itemstat &is, int &v)
    {
        v += is.add;
        if(v > is.max) v = is.max;
    }

    void pickup(int type)
    {
        switch(type)
        {
            case I_CLIPS:
                additem(ammostats[GUN_PISTOL], ammo[GUN_PISTOL]);
                additem(ammostats[GUN_AKIMBO], ammo[GUN_AKIMBO]);
                break;
            case I_AMMO: additem(ammostats[primary], ammo[primary]); break;
            case I_GRENADE: additem(ammostats[GUN_GRENADE], mag[GUN_GRENADE]); break;
            case I_HEALTH: additem(powerupstats[type-I_HEALTH], health); break;
            case I_ARMOUR: additem(powerupstats[type-I_HEALTH], armour); break;
            case I_AKIMBO:
                akimbo = true;
                mag[GUN_AKIMBO] = guns[GUN_AKIMBO].magsize;
                additem(ammostats[GUN_AKIMBO], ammo[GUN_AKIMBO]);
                break;
        }
    }

    void respawn()
    {
        health = 100;
        armour = 0;
        gunselect = GUN_PISTOL;
        akimbo = false;
        loopi(NUMGUNS) ammo[i] = mag[i] = gunwait[i] = 0;
        ammo[GUN_KNIFE] = mag[GUN_KNIFE] = 1;
    }

    virtual void spawnstate(int gamemode)
    {
        if(m_pistol) primary = GUN_PISTOL;
        else if(m_osok) primary = GUN_SNIPER;
        else if(m_lss) primary = GUN_KNIFE;
        else primary = nextprimary;

        if(!m_nopistol)
        {
            ammo[GUN_PISTOL] = ammostats[GUN_PISTOL].max-magsize(GUN_PISTOL);
            mag[GUN_PISTOL] = magsize(GUN_PISTOL);
        }

        if(!m_noprimary)
        {
            ammo[primary] = ammostats[primary].start-magsize(primary);
            mag[primary] = magsize(primary);
        }

        gunselect = primary;

        if(m_osok) health = 1;
    }

    // just subtract damage here, can set death, etc. later in code calling this
    int dodamage(int damage)
    {
        int ad = damage*30/100; // let armour absorb when possible
        if(ad>armour) ad = armour;
        armour -= ad;
        damage -= ad;
        health -= damage;
        return damage;
    }
};

#ifndef STANDALONE
#define HEADSIZE 0.4f

class playerent : public dynent, public playerstate
{
private:
    int curskin, nextskin[2];
public:
    int clientnum, lastupdate, plag, ping;
    int lifesequence;                   // sequence id for each respawn, used in damage test
    int frags, flagscore, deaths;
    int lastaction, lastmove, lastpain, lastvoicecom;
    int clientrole;
    bool attacking;
    string name;
    int team;
    int weaponchanging;
    int nextweapon; // weapon we switch to
    int spectatemode, followplayercn;
    int eardamagemillis;
    int respawnoffset;
    bool allowmove() { return state!=CS_DEAD || spectatemode==SM_FLY; }

    weapon *weapons[NUMGUNS];
    weapon *prevweaponsel, *weaponsel, *nextweaponsel, *primweap, *nextprimweap, *lastattackweapon;

    poshist history; // Previous stored locations of this player

    const char *skin_noteam, *skin_cla, *skin_rvsf;

    float deltayaw, deltapitch, newyaw, newpitch;
    int smoothmillis;

    vec head;

    bool ignored, muted;

    playerent() : curskin(0), clientnum(-1), lastupdate(0), plag(0), ping(0), lifesequence(0), frags(0), flagscore(0), deaths(0), lastpain(0), lastvoicecom(0), clientrole(CR_DEFAULT),
                  team(TEAM_SPECT), spectatemode(SM_NONE), followplayercn(FPCN_VOID), eardamagemillis(0), respawnoffset(0),
                  prevweaponsel(NULL), weaponsel(NULL), nextweaponsel(NULL), primweap(NULL), nextprimweap(NULL), lastattackweapon(NULL),
                  smoothmillis(-1),
                  head(-1, -1, -1), ignored(false), muted(false)
    {
        type = ENT_PLAYER;
        name[0] = 0;
        maxeyeheight = 4.5f;
        aboveeye = 0.7f;
        radius = 1.1f;
        maxspeed = 16.0f;
        skin_noteam = skin_cla = skin_rvsf = NULL;
        loopi(2) nextskin[i] = 0;
        respawn();
    }

    virtual ~playerent()
    {
        extern void removebounceents(playerent *owner);
        extern void removedynlights(physent *owner);
        extern void zapplayerflags(playerent *owner);
        extern void cleanplayervotes(playerent *owner);
        extern physent *camera1;
        extern void togglespect();
        removebounceents(this);
        audiomgr.detachsounds(this);
        removedynlights(this);
        zapplayerflags(this);
        cleanplayervotes(this);
        if(this==camera1) togglespect();
    }

    void damageroll(float damage)
    {
        extern void clamproll(physent *pl);
        float damroll = 2.0f*damage;
        roll += roll>0 ? damroll : (roll<0 ? -damroll : (rnd(2) ? damroll : -damroll)); // give player a kick
        clamproll(this);
    }

    void hitpush(int damage, const vec &dir, playerent *actor, int gun)
    {
        if(gun<0 || gun>NUMGUNS) return;
        vec push(dir);
        push.mul(damage/100.0f*guns[gun].pushfactor);
        vel.add(push);
        extern int lastmillis;
        if(gun==GUN_GRENADE && damage > 50) eardamagemillis = lastmillis+damage*100;
    }

    void resetspec()
    {
        spectatemode = SM_NONE;
        followplayercn = FPCN_VOID;
    }

    void respawn()
    {
        dynent::reset();
        playerstate::respawn();
        history.reset();
        if(weaponsel) weaponsel->reset();
        lastaction = 0;
        lastattackweapon = NULL;
        attacking = false;
        weaponchanging = 0;
        resetspec();
        eardamagemillis = 0;
        eyeheight = maxeyeheight;
        curskin = nextskin[team_base(team)];
    }

    void spawnstate(int gamemode)
    {
        playerstate::spawnstate(gamemode);
        prevweaponsel = weaponsel = weapons[gunselect];
        primweap = weapons[primary];
        nextprimweap = weapons[nextprimary];
        curskin = nextskin[team_base(team)];
    }

    void selectweapon(int w) { prevweaponsel = weaponsel = weapons[(gunselect = w)]; }
    void setprimary(int w) { primweap = weapons[(primary = w)]; }
    void setnextprimary(int w) { nextprimweap = weapons[(nextprimary = w)]; }
    bool isspectating() { return state==CS_SPECTATE || (state==CS_DEAD && spectatemode > SM_NONE); }
    void weaponswitch(weapon *w)
    {
        if(!w) return;
        extern int lastmillis;
        weaponsel->ondeselecting();
        weaponchanging = lastmillis;
        prevweaponsel = weaponsel;
        nextweaponsel = w;
        w->onselecting();
    }
    int skin(int t = -1) { return nextskin[team_base(t < 0 ? team : t)]; }
    void setskin(int t, int s)
    {
        const int maxskin[2] = { 4, 6 };
        t = team_base(t < 0 ? team : t);
        nextskin[t] = abs(s) % maxskin[t];
    }
};



class CBot;

class botent : public playerent
{
public:
    // Added by Rick
    CBot *pBot; // Only used if this is a bot, points to the bot class if we are the host,
                // for other clients its NULL
    // End add by Rick

    playerent *enemy;                      // monster wants to kill this entity
    // Added by Rick: targetpitch
    float targetpitch;                    // monster wants to look in this direction
    // End add
    float targetyaw;                    // monster wants to look in this direction

    botent() : pBot(NULL), enemy(NULL) { type = ENT_BOT; }
    ~botent() { }

    int deaths() { return lifesequence; }
};
#endif //#ifndef STANDALONE

// flag-mode entities

enum { CTFF_INBASE = 0, CTFF_STOLEN, CTFF_DROPPED, CTFF_IDLE };

struct flaginfo
{
	int team;
    entity *flagent;
	int actor_cn;
	playerent *actor;
    vec pos;
    int state; // one of CTFF_*
    bool ack;
    flaginfo() : flagent(0), actor(0), state(CTFF_INBASE), ack(false) {}
};

// nades, gibs

enum { BT_NONE, BT_NADE, BT_GIB };

class bounceent : public physent
{
public:
    int millis, timetolive, bouncetype; // see enum above
    float rotspeed;
    playerent *owner;

    bounceent() : bouncetype(BT_NONE), rotspeed(1.0f), owner(NULL)
    {
        type = ENT_BOUNCE;
        maxspeed = 40;
        radius = 0.2f;
        eyeheight = maxeyeheight = 0.3f;
        aboveeye = 0.0f;
    }

    virtual ~bounceent() {}

    bool isalive(int lastmillis) { return lastmillis - millis < timetolive; }
    virtual void destroy() {}
    virtual bool applyphysics() { return true; }
};

struct hitmsg
{
    int target, lifesequence, info;
    ivec dir;
};

class grenadeent : public bounceent
{
public:
    bool local;
    int nadestate;
    float distsincebounce;
    grenadeent(playerent *owner, int millis = 0);
    ~grenadeent();
    void activate(const vec &from, const vec &to);
    void _throw(const vec &from, const vec &vel);
    void explode();
    void splash();
    virtual void destroy();
    virtual bool applyphysics();
    void moveoutsidebbox(const vec &direction, playerent *boundingbox);
    void oncollision();
    void onmoved(const vec &dist);
};