Frost Nade поставить на мод паблик

#include <amxmodx>
#include <cstrike>
#include <fakemeta>
#include <fun>
#include <hamsandwich>

new const VERSION[] = "2.14";

#define message_begin_fl(%1,%2,%3,%4) engfunc(EngFunc_MessageBegin, %1, %2, %3, %4)
#define write_coord_fl(%1) engfunc(EngFunc_WriteCoord, %1)

#define m_pPlayer            41
#define m_pActiveItem        373
#define m_flFlashedUntil    514
#define m_flFlashHoldTime    517
#define OFFSET_WEAPON_CSWID    43
#define Ham_Player_ResetMaxSpeed Ham_Item_PreFrame

#define MAX_WEAPONS        32
#define AMMO_FLASHBANG        11
#define AMMO_HEGRENADE        12
#define AMMO_SMOKEGRENADE    13
#define DMG_GRENADE        (1<<24) // thanks arkshine
#define FFADE_IN            0x0000 // just here so we don't pass 0 into the function
#define BREAK_GLASS        0x01
#define STATUS_HIDE        0
#define STATUS_SHOW        1
#define STATUS_FLASH        2

#define GLOW_AMOUNT        1.0
#define FROST_RADIUS        240.0

#define NT_FLASHBANG        (1<<0) // 1; CSW:25
#define NT_HEGRENADE        (1<<1) // 2; CSW:4
#define NT_SMOKEGRENADE        (1<<2) // 4; CSW:9

new const GRENADE_NAMES[][] = {
    "weapon_hegrenade",
    "weapon_flashbang",
    "weapon_smokegrenade"
};

#define ICON_HASNADE        1
#define ICON_ISCHILLED        2

#define TASK_REMOVE_CHILL    100
#define TASK_REMOVE_FREEZE    200

new const MODEL_FROZEN[]    = "models/pi_shrub.mdl";
new const MODEL_GLASSGIBS[]    = "models/glassgibs.mdl";

new const SOUND_EXPLODE[]    = "x/x_shoot1.wav";
new const SOUND_FROZEN[]    = "debris/glass1.wav";
new const SOUND_UNFROZEN[]    = "debris/glass3.wav";
new const SOUND_CHILLED[]    = "player/pl_duct2.wav";
new const SOUND_PICKUP[]    = "items/gunpickup2.wav";

new const SPRITE_TRAIL[]    = "sprites/laserbeam.spr";
new const SPRITE_SMOKE[]    = "sprites/steam1.spr";
new const SPRITE_EXPLO[]    = "sprites/shockwave.spr";

new pcv_enabled, pcv_override, pcv_nadetypes, pcv_teams, pcv_price, pcv_limit, pcv_buyzone, pcv_color, pcv_icon,
        pcv_by_radius, pcv_hitself, pcv_los, pcv_maxdamage, pcv_mindamage, pcv_chill_maxchance, pcv_chill_minchance,
        pcv_chill_duration, pcv_chill_variance, pcv_chill_speed, pcv_freeze_maxchance, pcv_freeze_minchance,
        pcv_freeze_duration, pcv_freeze_variance;

new maxPlayers, gmsgScreenFade, gmsgStatusIcon, gmsgBlinkAcct, gmsgAmmoPickup, gmsgTextMsg,
        gmsgWeapPickup, glassGibs, trailSpr, smokeSpr, exploSpr, mp_friendlyfire, czero, bot_quota, czBotHams, fmFwdPPT,
        fnFwdPlayerChilled, fnFwdPlayerFrozen, bool:roundRestarting;

new isChilled[33], isFrozen[33], frostKilled[33], novaDisplay[33], Float:glowColor[33][3], Float:oldGravity[33], oldRenderFx[33],
        Float:oldRenderColor[33][3], oldRenderMode[33], Float:oldRenderAmt[33], hasFrostNade[33], nadesBought[33];

public plugin_init()
{
    register_plugin("FrostNades",VERSION,"Avalanche");
    register_cvar("fn_version",VERSION,FCVAR_SERVER);

    pcv_enabled = register_cvar("fn_enabled","1");
    pcv_override = register_cvar("fn_override","1");
    pcv_nadetypes = register_cvar("fn_nadetypes","4"); // NT_SMOKEGRENADE
    pcv_teams = register_cvar("fn_teams","3");
    pcv_price = register_cvar("fn_price","300");
    pcv_icon = register_cvar("fn_icon","1");
    pcv_limit = register_cvar("fn_limit","0");
    pcv_buyzone = register_cvar("fn_buyzone","1");
    pcv_color = register_cvar("fn_color","0 206 209");

    pcv_by_radius = register_cvar("fn_by_radius","0.0");
    pcv_hitself = register_cvar("fn_hitself","1");
    pcv_los = register_cvar("fn_los","1");
    pcv_maxdamage = register_cvar("fn_maxdamage","20.0");
    pcv_mindamage = register_cvar("fn_mindamage","1.0");
    pcv_chill_maxchance = register_cvar("fn_chill_maxchance","100.0");
    pcv_chill_minchance = register_cvar("fn_chill_minchance","100.0");
    pcv_chill_duration = register_cvar("fn_chill_duration","7.0");
    pcv_chill_variance = register_cvar("fn_chill_variance","1.0");
    pcv_chill_speed = register_cvar("fn_chill_speed","60.0");
    pcv_freeze_maxchance = register_cvar("fn_freeze_maxchance","110.0");
    pcv_freeze_minchance = register_cvar("fn_freeze_minchance","40.0");
    pcv_freeze_duration = register_cvar("fn_freeze_duration","4.0");
    pcv_freeze_variance = register_cvar("fn_freeze_variance","0.5");
    
    mp_friendlyfire = get_cvar_pointer("mp_friendlyfire");
    
    new mod[6];
    get_modname(mod,5);
    if(equal(mod,"czero"))
    {
        czero = 1;
        bot_quota = get_cvar_pointer("bot_quota");
    }
    
    maxPlayers = get_maxplayers();
    gmsgScreenFade = get_user_msgid("ScreenFade");
    gmsgStatusIcon = get_user_msgid("StatusIcon");
    gmsgBlinkAcct = get_user_msgid("BlinkAcct");
    gmsgAmmoPickup = get_user_msgid("AmmoPickup");
    gmsgWeapPickup = get_user_msgid("WeapPickup");
    gmsgTextMsg = get_user_msgid("TextMsg");

    register_forward(FM_SetModel,"fw_setmodel",1);
    register_message(get_user_msgid("DeathMsg"),"msg_deathmsg");
    
    register_event("ResetHUD", "event_resethud", "b");
    register_event("TextMsg", "event_round_restart", "a", "2=#Game_Commencing", "2=#Game_will_restart_in");
    register_event("HLTV", "event_new_round", "a", "1=0", "2=0");

    RegisterHam(Ham_Spawn,"player","ham_player_spawn",1);
    RegisterHam(Ham_Killed,"player","ham_player_killed",1);
    RegisterHam(Ham_Player_ResetMaxSpeed,"player","ham_player_resetmaxspeed",1);
    RegisterHam(Ham_Think,"grenade","ham_grenade_think",0);
    RegisterHam(Ham_Use, "player_weaponstrip", "ham_player_weaponstrip_use", 1);
    
    for(new i=0; i<sizeof GRENADE_NAMES; i++)
    {
        RegisterHam(Ham_Item_Deploy, GRENADE_NAMES[i], "ham_grenade_deploy", 1);
        RegisterHam(Ham_Item_Holster, GRENADE_NAMES[i], "ham_grenade_holster", 1);
        RegisterHam(Ham_Item_AddToPlayer, GRENADE_NAMES[i], "ham_grenade_addtoplayer", 1);
        RegisterHam(Ham_Item_AddDuplicate, GRENADE_NAMES[i], "ham_grenade_addduplicate", 1);
    }
    
    register_clcmd("say /fn","buy_frostnade");
    register_clcmd("say_team /fn","buy_frostnade");
    register_clcmd("say /frostnade","buy_frostnade");
    register_clcmd("say_team /frostnade","buy_frostnade");
    
    fnFwdPlayerChilled = CreateMultiForward("frostnades_player_chilled", ET_STOP, FP_CELL, FP_CELL);
    fnFwdPlayerFrozen  = CreateMultiForward("frostnades_player_frozen",  ET_STOP, FP_CELL, FP_CELL);
}

public plugin_end()
{
    DestroyForward(fnFwdPlayerChilled);
    DestroyForward(fnFwdPlayerFrozen);
}

public plugin_precache()
{
    precache_model(MODEL_FROZEN);
    glassGibs = precache_model(MODEL_GLASSGIBS);

    precache_sound(SOUND_EXPLODE); // grenade explodes
    precache_sound(SOUND_FROZEN); // player is frozen
    precache_sound(SOUND_UNFROZEN); // frozen wears off
    precache_sound(SOUND_CHILLED); // player is chilled
    precache_sound(SOUND_PICKUP); // player buys frostnade

    trailSpr = precache_model(SPRITE_TRAIL);
    smokeSpr = precache_model(SPRITE_SMOKE);
    exploSpr = precache_model(SPRITE_EXPLO);
}

public client_putinserver(id)
{
    isChilled[id] = 0;
    isFrozen[id] = 0;
    frostKilled[id] = 0;
    novaDisplay[id] = 0;
    hasFrostNade[id] = 0;
    
    if(czero && !czBotHams && is_user_bot(id) && get_pcvar_num(bot_quota) > 0)
        set_task(0.1,"czbot_hook_ham",id);
}

public client_disconnect(id)
{
    if(isChilled[id]) task_remove_chill(TASK_REMOVE_CHILL+id);
    if(isFrozen[id]) task_remove_freeze(TASK_REMOVE_FREEZE+id);
}

// registering a ham hook for "player" won't register it for CZ bots,
// for some reason. so we have to register it by entity.
public czbot_hook_ham(id)
{
    if(!czBotHams && is_user_connected(id) && is_user_bot(id) && get_pcvar_num(bot_quota) > 0)
    {
        RegisterHamFromEntity(Ham_Spawn,id,"ham_player_spawn",1);
        RegisterHamFromEntity(Ham_Killed,id,"ham_player_killed",1);
        RegisterHamFromEntity(Ham_Player_ResetMaxSpeed,id,"ham_player_resetmaxspeed",1);
        czBotHams = 1;
    }
}

// intercept server log messages to replace grenade kills with frostgrenade kills
public plugin_log()
{
    static arg[512];
    
    if(get_pcvar_num(pcv_enabled) && read_logargc() >= 5)
    {
        read_logargv(1, arg, 7); // "killed"
        
        if(equal(arg, "killed"))
        {
            read_logargv(2, arg, 127); // info of player that was killed
            
            // get ID of player that was killed
            new dummy[1], killedUserId;
            parse_loguser(arg, dummy, 0, killedUserId);
            new killedId = find_player("k", killedUserId);
            
            if(killedId && frostKilled[killedId])
            {    
                // override with frostgrenade message
                read_logdata(arg, 511);
                replace(arg, 511, "with ^"grenade^"", "with ^"frostgrenade^"");                
                log_message("%s", arg);

                return PLUGIN_HANDLED;
            }
        }
    }
    
    return PLUGIN_CONTINUE;
}

/****************************************
* PRIMARY FUNCTIONS AND SUCH
****************************************/

public buy_frostnade(id)
{
    if(!get_pcvar_num(pcv_enabled) || get_pcvar_num(pcv_override))
        return PLUGIN_CONTINUE;

    if(!is_user_alive(id)) return PLUGIN_HANDLED;

    if(get_pcvar_num(pcv_buyzone) && !cs_get_user_buyzone(id))
    {
        // #Cstrike_NotInBuyZone won't work for some reason
        client_print(id,print_center,"You are not in a buy zone.");

        return PLUGIN_HANDLED;
    }

    if(!(get_pcvar_num(pcv_teams) & _:cs_get_user_team(id)))
    {
        // have to do it this way to format
        message_begin(MSG_ONE,gmsgTextMsg,_,id);
        write_byte(print_center);
        write_string("#Alias_Not_Avail");
        write_string("Frost Grenade");
        message_end();

        return PLUGIN_HANDLED;
    }

    if(hasFrostNade[id])
    {
        client_print(id,print_center,"#Cstrike_Already_Own_Weapon");
        return PLUGIN_HANDLED;
    }
    
    new limit = get_pcvar_num(pcv_limit);
    if(limit && nadesBought[id] >= limit)
    {
        client_print(id,print_center,"#Cstrike_TitlesTXT_Cannot_Carry_Anymore");
        return PLUGIN_HANDLED;
    }
    
    new money = cs_get_user_money(id), price = get_pcvar_num(pcv_price);

    // need more vespene gas
    if(money < price)
    {
        client_print(id,print_center,"#Cstrike_TitlesTXT_Not_Enough_Money");
        
        message_begin(MSG_ONE_UNRELIABLE,gmsgBlinkAcct,_,id);
        write_byte(2);
        message_end();

        return PLUGIN_HANDLED;
    }
    
    // try to use smokegrenade, then flashbang, then hegrenade
    new wpnid = CSW_SMOKEGRENADE, ammoid = AMMO_SMOKEGRENADE, wpnName[20] = "weapon_smokegrenade", type = get_pcvar_num(pcv_nadetypes);
    if(!(type & NT_SMOKEGRENADE))
    {
        if(type & NT_FLASHBANG)
        {
            wpnid = CSW_FLASHBANG;
            ammoid = AMMO_FLASHBANG;
            wpnName = "weapon_flashbang";
        }
        else if(type & NT_HEGRENADE)
        {
            wpnid = CSW_HEGRENADE;
            ammoid = AMMO_HEGRENADE;
            wpnName = "weapon_hegrenade";
        }
    }
    
    hasFrostNade[id] = wpnid;
    nadesBought[id]++;
    cs_set_user_money(id,money - price);

    new ammo = cs_get_user_bpammo(id,wpnid);

    // give him one
    if(!ammo) give_item(id,wpnName);
    else
    {
        cs_set_user_bpammo(id,wpnid,ammo+1);
        
        // just so the player can see what kind it is on his HUD

        message_begin(MSG_ONE,gmsgAmmoPickup,_,id);
        write_byte(ammoid);
        write_byte(ammo+1);
        message_end();

        message_begin(MSG_ONE,gmsgWeapPickup,_,id);
        write_byte(wpnid);
        message_end();
        
        // won't play via cs_set_user_bpammo
        engfunc(EngFunc_EmitSound,id,CHAN_ITEM,SOUND_PICKUP,VOL_NORM,ATTN_NORM,0,PITCH_NORM);
        
        // for icon management
        grenade_added(id, wpnid);
    }
    
    return PLUGIN_HANDLED;
}

// entity is given a model (used to detect for thrown grenades)
public fw_setmodel(ent,model[])
{
    if(!get_pcvar_num(pcv_enabled)) return FMRES_IGNORED;

    new owner = pev(ent,pev_owner);
    if(!is_user_connected(owner)) return FMRES_IGNORED;
    
    // this isn't going to explode
    new Float:dmgtime;
    pev(ent,pev_dmgtime,dmgtime);
    if(dmgtime == 0.0) return FMRES_IGNORED;
    
    new type, csw;
    if(model[7] == 'w' && model[8] == '_')
    {
        switch(model[9])
        {
            case 'h': { type = NT_HEGRENADE; csw = CSW_HEGRENADE; }
            case 'f': { type = NT_FLASHBANG; csw = CSW_FLASHBANG; }
            case 's': { type = NT_SMOKEGRENADE; csw = CSW_SMOKEGRENADE; }
        }
    }
    if(!type) return FMRES_IGNORED;
    
    new team = _:cs_get_user_team(owner);

    // have a frostnade (override off);OR; override enabled, on valid team, using valid frostnade type
    if(hasFrostNade[owner] == csw || (get_pcvar_num(pcv_override)
            && (get_pcvar_num(pcv_teams) & team) && (get_pcvar_num(pcv_nadetypes) & type)))
    {
        // not using override
        if(hasFrostNade[owner] == csw)
        {
            hasFrostNade[owner] = 0;
            if(get_pcvar_num(pcv_icon) == ICON_HASNADE)
            {
                show_icon(owner, STATUS_HIDE);
            }
        }

        set_pev(ent,pev_team,team);
        set_pev(ent,pev_bInDuck,1); // flag it as a frostnade

        new rgb[3], Float:rgbF[3];
        get_rgb_colors(team,rgb);
        IVecFVec(rgb, rgbF);
        
        // glowshell
        set_pev(ent,pev_rendermode,kRenderNormal);
        set_pev(ent,pev_renderfx,kRenderFxGlowShell);
        set_pev(ent,pev_rendercolor,rgbF);
        set_pev(ent,pev_renderamt,16.0);

        set_beamfollow(ent,10,10,rgb,100);
    }

    return FMRES_IGNORED;
}

// freeze a player in place whilst he's frozen
public fw_playerprethink(id)
{
    /*if(isChilled[id])
    {
        // remember rendering changes
        new fx = pev(id,pev_renderfx), Float:color[3], mode = pev(id,pev_rendermode), Float:amount;
        pev(id,pev_rendercolor,color);
        pev(id,pev_renderamt,amount);

        if(fx != kRenderFxGlowShell)
        {
            oldRenderFx[id] = fx;
            set_pev(id,pev_renderfx,kRenderFxGlowShell);
        }
        if(color[0] != glowColor[id][0] || color[1] != glowColor[id][1] || color[2] != glowColor[id][2])
        {
            oldRenderColor[id] = color;
            set_pev(id,pev_rendercolor,glowColor[id]);
        }
        if(mode != kRenderNormal)
        {
            oldRenderMode[id] = mode;
            set_pev(id,pev_rendermode,kRenderNormal);
        }
        if(amount != GLOW_AMOUNT)
        {
            oldRenderAmt[id] = amount;
            set_pev(id,pev_renderamt,GLOW_AMOUNT);
        }
    }*/

    if(isFrozen[id])
    {
        set_pev(id,pev_velocity,Float:{0.0,0.0,0.0}); // stop motion
        
        new Float:gravity;
        pev(id,pev_gravity,gravity);
        
        // remember any gravity changes
        if(gravity != 0.000000001 && gravity != 999999999.9)
            oldGravity[id] = gravity;

        // if are on the ground and about to jump, set the gravity too high to really do so
        if((pev(id,pev_button) & IN_JUMP) && !(pev(id,pev_oldbuttons) & IN_JUMP) && (pev(id,pev_flags) & FL_ONGROUND))
            set_pev(id,pev_gravity,999999999.9);

        // otherwise, set the gravity so low that they don't fall
        else set_pev(id,pev_gravity,0.000000001);
    }
    
    return FMRES_IGNORED;
}

// override grenade kill message with skull and crossbones
public msg_deathmsg(msg_id,msg_dest,msg_entity)
{
    new victim = get_msg_arg_int(2);
    if(!is_user_connected(victim) || !frostKilled[victim]) return PLUGIN_CONTINUE;

    static weapon[8];
    get_msg_arg_string(4,weapon,7);
    if(equal(weapon,"grenade")) set_msg_arg_string(4,"frostgrenade");

    //frostKilled[victim] = 0;
    return PLUGIN_CONTINUE;
}

// catch HUD reset to re-display icon if necessary
public event_resethud(id)
{
    if(!is_user_alive(id) || !get_pcvar_num(pcv_enabled)) return;

    if(get_pcvar_num(pcv_icon) == ICON_HASNADE)
    {
        new status = player_has_frostnade(id);
        show_icon(id, status);
    }

    return;
}

// round is restarting (TAG: sv_restartround)
public event_round_restart()
{
    // just remember for event_new_round
    roundRestarting = true;
}

// start of a new round
public event_new_round()
{
    if(roundRestarting)
    {
        roundRestarting = false;
        
        // clear frost grenades from all players (for override mode)
        for(new i=1;i<=maxPlayers;i++)
        {
            hasFrostNade[i] = 0;
        }
    }
}

// rezzed
public ham_player_spawn(id)
{
    nadesBought[id] = 0;
    
    if(is_user_alive(id))
    {
        if(isChilled[id]) task_remove_chill(TASK_REMOVE_CHILL+id);
        if(isFrozen[id]) task_remove_freeze(TASK_REMOVE_FREEZE+id);
    }
    
    return HAM_IGNORED;
}

// killed to death
public ham_player_killed(id)
{
    hasFrostNade[id] = 0;

    if(get_pcvar_num(pcv_enabled) && get_pcvar_num(pcv_icon) == ICON_HASNADE)
    {
        show_icon(id, STATUS_HIDE);
    }

    if(isChilled[id]) task_remove_chill(TASK_REMOVE_CHILL+id);
    if(isFrozen[id]) task_remove_freeze(TASK_REMOVE_FREEZE+id);
    
    return HAM_IGNORED;
}

// movement speed is changed
public ham_player_resetmaxspeed(id)
{
    if(get_pcvar_num(pcv_enabled))
    {
        set_user_chillfreeze_speed(id);
    }

    return HAM_IGNORED;
}

// grenade is ticking away
public ham_grenade_think(ent)
{
    // not a frostnade
    if(!pev_valid(ent) || !pev(ent,pev_bInDuck)) return HAM_IGNORED;
    
    new Float:dmgtime;
    pev(ent,pev_dmgtime,dmgtime);
    if(dmgtime > get_gametime()) return HAM_IGNORED;
    
    // and boom goes the dynamite
    frostnade_explode(ent);

    return HAM_SUPERCEDE;
}

// a player_weaponstrip is used
public ham_player_weaponstrip_use(ent, idcaller, idactivator, use_type, Float:value)
{
    if(idcaller >= 1 && idcaller <= maxPlayers)
    {
        // clear frostnade when using override
        hasFrostNade[idcaller] = 0;

        if(is_user_alive(idcaller) && get_pcvar_num(pcv_enabled) && get_pcvar_num(pcv_icon) == ICON_HASNADE)
        {
            new status = player_has_frostnade(idcaller);
            show_icon(idcaller, status);
        }
    }

    return HAM_IGNORED;
}

// some kind of grenade is deployed
public ham_grenade_deploy(ent)
{    
    if(pev_valid(ent))
    {
        grenade_deployed(get_pdata_cbase(ent, m_pPlayer, 4),
            get_pdata_int(ent, OFFSET_WEAPON_CSWID, 4));
    }
    
    return HAM_IGNORED;
}

// some kind of grenade is holstered
public ham_grenade_holster(ent)
{
    if(pev_valid(ent))
    {
        grenade_holstered(get_pdata_cbase(ent, m_pPlayer, 4),
            get_pdata_int(ent, OFFSET_WEAPON_CSWID, 4));
    }
    
    return HAM_IGNORED;
}

// some kind of grenade is added to a player's inventory
public ham_grenade_addtoplayer(ent, id)
{
    if(pev_valid(ent))
    {
        grenade_added(id, get_pdata_int(ent, OFFSET_WEAPON_CSWID, 4));
    }

    return HAM_IGNORED;
}

// some kind of grenade is added to a player's inventory, when he already has one
public ham_grenade_addduplicate(ent, orig)
{
    if(pev_valid(orig))
    {
        grenade_added(pev(orig, pev_owner), get_pdata_int(orig, OFFSET_WEAPON_CSWID, 4));
    }
    
    return HAM_IGNORED;
}

// handle when player id deploys a grenade with weapon id wid
grenade_deployed(id, wid)
{
    // if we should worry about managing my icon now
    if(get_pcvar_num(pcv_enabled) && is_user_alive(id) && get_pcvar_num(pcv_icon) == ICON_HASNADE)
    {
        // if I just switched to a frost grenade
        if( wid == hasFrostNade[id]
            || (get_pcvar_num(pcv_override) && (get_pcvar_num(pcv_teams) & _:cs_get_user_team(id)) && is_wid_in_nadetypes(wid)) )
        {
            show_icon(id, STATUS_FLASH);
        }
    }
}

// handle when player id holsters a grenade with weapon id wid
grenade_holstered(id, wid)
{    
    // if we should worry about managing my icon now
    if(get_pcvar_num(pcv_enabled) && is_user_alive(id) && get_pcvar_num(pcv_icon) == ICON_HASNADE)
    {
        // if I just holstered a frost grenade        
        if( wid == hasFrostNade[id]
            || (get_pcvar_num(pcv_override) && (get_pcvar_num(pcv_teams) & _:cs_get_user_team(id)) && is_wid_in_nadetypes(wid)) )
        {
            // only do STATUS_SHOW or STATUS_HIDE... during holster, current weapon
            // will still technically be the frost grenade, but we don't want to
            // mistakenly flash the icon                
            new status = (player_has_frostnade(id) != STATUS_HIDE ? STATUS_SHOW : STATUS_HIDE);
            show_icon(id, status);
        }
    }
}

// handle when player id gets a grenade with weapon id wid added to his inventory
grenade_added(id, wid)
{
    // if we should worry about managing my icon now
    if(get_pcvar_num(pcv_enabled) && is_user_alive(id) && get_pcvar_num(pcv_icon) == ICON_HASNADE)
    {
        // if I just got a frost grenade
        if( wid == hasFrostNade[id]
            || (get_pcvar_num(pcv_override) && (get_pcvar_num(pcv_teams) & _:cs_get_user_team(id)) && is_wid_in_nadetypes(wid)) )
        {
            new status = player_has_frostnade(id);
            show_icon(id, status);
        }
    }
}

// a frost grenade explodes
public frostnade_explode(ent)
{
    new nadeTeam = pev(ent,pev_team), owner = pev(ent,pev_owner), Float:nadeOrigin[3];
    pev(ent,pev_origin,nadeOrigin);
    
    // make the smoke
    message_begin_fl(MSG_PVS,SVC_TEMPENTITY,nadeOrigin,0);
    write_byte(TE_SMOKE);
    write_coord_fl(nadeOrigin[0]); // x
    write_coord_fl(nadeOrigin[1]); // y
    write_coord_fl(nadeOrigin[2]); // z
    write_short(smokeSpr); // sprite
    write_byte(random_num(30,40)); // scale
    write_byte(5); // framerate
    message_end();
    
    // explosion
    create_blast(nadeTeam,nadeOrigin);
    emit_sound(ent,CHAN_ITEM,SOUND_EXPLODE,VOL_NORM,ATTN_NORM,0,PITCH_HIGH);

    // cache our cvars
    new ff = get_pcvar_num(mp_friendlyfire), Float:by_radius = get_pcvar_float(pcv_by_radius),
            hitself = get_pcvar_num(pcv_hitself), los = get_pcvar_num(pcv_los), Float:maxdamage = get_pcvar_float(pcv_maxdamage),
            Float:mindamage = get_pcvar_float(pcv_mindamage), Float:chill_maxchance = get_pcvar_float(pcv_chill_maxchance),
            Float:chill_minchance = get_pcvar_float(pcv_chill_minchance), Float:freeze_maxchance, Float:freeze_minchance;

    if(!by_radius)
    {
        freeze_maxchance = get_pcvar_float(pcv_freeze_maxchance);
        freeze_minchance = get_pcvar_float(pcv_freeze_minchance);
    }

    new ta, Float:targetOrigin[3], Float:distance, tr = create_tr2(), Float:fraction, Float:damage, gotFrozen = 0;
    for(new target=1;target<=maxPlayers;target++)
    {
        // dead, invincible, or self attack that is not allowed
        if(!is_user_alive(target) || pev(target,pev_takedamage) == DAMAGE_NO
        || (pev(target,pev_flags) & FL_GODMODE) ||(target == owner && !hitself))
            continue;
        
        // this is a team attack with ff disabled, excluding self attack
        ta = (_:cs_get_user_team(target) == nadeTeam);
        if(ta && !ff && target != owner) continue;
        
        pev(target,pev_origin,targetOrigin);
        distance = vector_distance(nadeOrigin,targetOrigin);
        
        // too far
        if(distance > FROST_RADIUS) continue;

        // check line of sight
        if(los)
        {
            nadeOrigin[2] += 2.0;
            engfunc(EngFunc_TraceLine,nadeOrigin,targetOrigin,DONT_IGNORE_MONSTERS,ent,tr);
            nadeOrigin[2] -= 2.0;

            get_tr2(tr,TR_flFraction,fraction);
            if(fraction != 1.0 && get_tr2(tr,TR_pHit) != target) continue;
        }

        // damaged
        if(maxdamage > 0.0)
        {
            damage = radius_calc(distance,FROST_RADIUS,maxdamage,mindamage);
            if(ta) damage /= 2.0; // half damage for friendlyfire

            if(damage > 0.0)
            {
                frostKilled[target] = 1;
                ExecuteHamB(Ham_TakeDamage,target,ent,owner,damage,DMG_GRENADE);
                if(!is_user_alive(target)) continue; // dead now
                frostKilled[target] = 0;
            }
        }

        // frozen
        if((by_radius && radius_calc(distance,FROST_RADIUS,100.0,0.0) >= by_radius)
        || (!by_radius && random_num(1,100) <= floatround(radius_calc(distance,FROST_RADIUS,freeze_maxchance,freeze_minchance))))
        {
            if(freeze_player(target,owner,nadeTeam))
            {
                gotFrozen = 1;
                emit_sound(target,CHAN_ITEM,SOUND_FROZEN,1.0,ATTN_NONE,0,PITCH_LOW);
            }
        }
        
        // chilled
        if(by_radius || random_num(1,100) <= floatround(radius_calc(distance,FROST_RADIUS,chill_maxchance,chill_minchance)))
        {
            if(chill_player(target,owner,nadeTeam))
            {
                if(!gotFrozen) emit_sound(target,CHAN_ITEM,SOUND_CHILLED,VOL_NORM,ATTN_NORM,0,PITCH_HIGH);
            }
        }
    }

    free_tr2(tr);
    set_pev(ent,pev_flags,pev(ent,pev_flags)|FL_KILLME);
}

freeze_player(id,attacker,nadeTeam)
{
    new fwdRetVal = PLUGIN_CONTINUE;
    ExecuteForward(fnFwdPlayerFrozen, fwdRetVal, id, attacker);
    
    if(fwdRetVal == PLUGIN_HANDLED || fwdRetVal == PLUGIN_HANDLED_MAIN)
    {
        return 0;
    }

    if(!isFrozen[id])
    {
        pev(id,pev_gravity,oldGravity[id]);

        // register our forward only when we need it
        if(!fmFwdPPT)
        {
            fmFwdPPT = register_forward(FM_PlayerPreThink,"fw_playerprethink",0);
        }
    }

    isFrozen[id] = nadeTeam;
    
    set_pev(id,pev_velocity,Float:{0.0,0.0,0.0});
    set_user_chillfreeze_speed(id);
    
    new Float:duration = get_pcvar_float(pcv_freeze_duration), Float:variance = get_pcvar_float(pcv_freeze_variance);
    duration += random_float(-variance,variance);

    remove_task(TASK_REMOVE_FREEZE+id);
    set_task(duration,"task_remove_freeze",TASK_REMOVE_FREEZE+id);
    
    if(!pev_valid(novaDisplay[id])) create_nova(id);
    
    if(get_pcvar_num(pcv_icon) == ICON_ISCHILLED)
    {
        show_icon(id, STATUS_FLASH);
    }
    
    return 1;
}

public task_remove_freeze(taskid)
{
    new id = taskid-TASK_REMOVE_FREEZE;
    
    if(pev_valid(novaDisplay[id]))
    {
        new Float:origin[3];
        pev(novaDisplay[id],pev_origin,origin);

        // add some tracers
        message_begin_fl(MSG_PVS,SVC_TEMPENTITY,origin,0);
        write_byte(TE_IMPLOSION);
        write_coord_fl(origin[0]); // x
        write_coord_fl(origin[1]); // y
        write_coord_fl(origin[2] + 8.0); // z
        write_byte(64); // radius
        write_byte(10); // count
        write_byte(3); // duration
        message_end();

        // add some sparks
        message_begin_fl(MSG_PVS,SVC_TEMPENTITY,origin,0);
        write_byte(TE_SPARKS);
        write_coord_fl(origin[0]); // x
        write_coord_fl(origin[1]); // y
        write_coord_fl(origin[2]); // z
        message_end();

        // add the shatter
        message_begin_fl(MSG_PAS,SVC_TEMPENTITY,origin,0);
        write_byte(TE_BREAKMODEL);
        write_coord_fl(origin[0]); // x
        write_coord_fl(origin[1]); // y
        write_coord_fl(origin[2] + 24.0); // z
        write_coord_fl(16.0); // size x
        write_coord_fl(16.0); // size y
        write_coord_fl(16.0); // size z
        write_coord(random_num(-50,50)); // velocity x
        write_coord(random_num(-50,50)); // velocity y
        write_coord_fl(25.0); // velocity z
        write_byte(10); // random velocity
        write_short(glassGibs); // model
        write_byte(10); // count
        write_byte(25); // life
        write_byte(BREAK_GLASS); // flags
        message_end();

        emit_sound(novaDisplay[id],CHAN_ITEM,SOUND_UNFROZEN,VOL_NORM,ATTN_NORM,0,PITCH_LOW);
        set_pev(novaDisplay[id],pev_flags,pev(novaDisplay[id],pev_flags)|FL_KILLME);
    }

    isFrozen[id] = 0;
    novaDisplay[id] = 0;
    
    // unregister forward if we are no longer using it
    unregister_prethink();

    if(!is_user_connected(id)) return;
    
    // restore speed, but then check for chilled
    ExecuteHam(Ham_Player_ResetMaxSpeed, id);
    set_user_chillfreeze_speed(id);

    set_pev(id,pev_gravity,oldGravity[id]);
    
    new status = STATUS_HIDE;
    
    // sometimes trail fades during freeze, reapply
    if(isChilled[id])
    {
        status = STATUS_SHOW;
        
        new rgb[3];
        get_rgb_colors(isChilled[id],rgb);
        set_beamfollow(id,30,8,rgb,100);
    }
    
    if(get_pcvar_num(pcv_icon) == ICON_ISCHILLED)
    {
        show_icon(id, status);
    }
}

chill_player(id,attacker,nadeTeam)
{
    new fwdRetVal = PLUGIN_CONTINUE;
    ExecuteForward(fnFwdPlayerChilled, fwdRetVal, id, attacker);
    
    if(fwdRetVal == PLUGIN_HANDLED || fwdRetVal == PLUGIN_HANDLED_MAIN)
    {
        return 0;
    }

    // we aren't already been chilled
    if(!isChilled[id])
    {
        oldRenderFx[id] = pev(id,pev_renderfx);
        pev(id,pev_rendercolor,oldRenderColor[id]);
        oldRenderMode[id] = pev(id,pev_rendermode);
        pev(id,pev_renderamt,oldRenderAmt[id]);

        isChilled[id] = nadeTeam; // fix -- thanks Exolent

        // register our forward only when we need it
        //if(!fmFwdPPT) fmFwdPPT = register_forward(FM_PlayerPreThink,"fw_playerprethink",0);
    }

    isChilled[id] = nadeTeam;
    
    set_user_chillfreeze_speed(id);
    
    new Float:duration = get_pcvar_float(pcv_chill_duration), Float:variance = get_pcvar_float(pcv_chill_variance);
    duration += random_float(-variance,variance);

    remove_task(TASK_REMOVE_CHILL+id);
    set_task(duration,"task_remove_chill",TASK_REMOVE_CHILL+id);

    new rgb[3];
    get_rgb_colors(nadeTeam,rgb);
    
    IVecFVec(rgb, glowColor[id]);
    
    // glowshell
    set_user_rendering(id, kRenderFxGlowShell, rgb[0], rgb[1], rgb[2], kRenderNormal, floatround(GLOW_AMOUNT));

    set_beamfollow(id,30,8,rgb,100);

    // I decided to let the frostnade tint override a flashbang,
    // because if you are frozen, then you have much bigger problems.

    // add a blue tint to their screen
    message_begin(MSG_ONE,gmsgScreenFade,_,id);
    write_short(floatround(4096.0 * duration)); // duration
    write_short(floatround(3072.0 * duration)); // hold time (4096.0 * 0.75)
    write_short(FFADE_IN); // flags
    write_byte(rgb[0]); // red
    write_byte(rgb[1]); // green
    write_byte(rgb[2]); // blue
    write_byte(100); // alpha
    message_end();
    
    if(get_pcvar_num(pcv_icon) == ICON_ISCHILLED && !isFrozen[id])
    {
        show_icon(id, STATUS_SHOW);
    }
    
    return 1;
}

public task_remove_chill(taskid)
{
    new id = taskid-TASK_REMOVE_CHILL;

    isChilled[id] = 0;
    
    // unregister forward if we are no longer using it
    //unregister_prethink();

    if(!is_user_connected(id)) return;
    
    // set speed to normal, then check for frozen
    ExecuteHam(Ham_Player_ResetMaxSpeed, id);
    set_user_chillfreeze_speed(id);

    // reset rendering
    set_user_rendering(id, oldRenderFx[id], floatround(oldRenderColor[id][0]), floatround(oldRenderColor[id][1]),
        floatround(oldRenderColor[id][2]), oldRenderMode[id], floatround(oldRenderAmt[id]));

    clear_beamfollow(id);

    // calculate end of flashbang
    new Float:flashedUntil = get_pdata_float(id,m_flFlashedUntil),
            Float:flashHoldTime = get_pdata_float(id,m_flFlashHoldTime),
            Float:endOfFlash = flashedUntil + (flashHoldTime * 0.67);
    
    // not blinded
    if(get_gametime() >= endOfFlash)
    {
        // clear tint
        message_begin(MSG_ONE,gmsgScreenFade,_,id);
        write_short(0); // duration
        write_short(0); // hold time
        write_short(FFADE_IN); // flags
        write_byte(0); // red
        write_byte(0); // green
        write_byte(0); // blue
        write_byte(255); // alpha
        message_end();
    }
    
    if(get_pcvar_num(pcv_icon) == ICON_ISCHILLED && !isFrozen[id])
    {
        show_icon(id, STATUS_HIDE);
    }
}

// make a frost nova at a player's feet
create_nova(id)
{
    new nova = engfunc(EngFunc_CreateNamedEntity,engfunc(EngFunc_AllocString,"info_target"));

    engfunc(EngFunc_SetSize,nova,Float:{-8.0,-8.0,-4.0},Float:{8.0,8.0,4.0});
    engfunc(EngFunc_SetModel,nova,MODEL_FROZEN);

    // random orientation
    new Float:angles[3];
    angles[1] = random_float(0.0,360.0);
    set_pev(nova,pev_angles,angles);

    // put it at their feet
    new Float:novaOrigin[3];
    pev(id,pev_origin,novaOrigin);
    engfunc(EngFunc_SetOrigin,nova,novaOrigin);

    // make it translucent
    new rgb[3];
    get_rgb_colors(isFrozen[id], rgb);
    IVecFVec(rgb, angles); // let's just use angles

    set_pev(nova,pev_rendercolor,angles); // see above
    set_pev(nova,pev_rendermode,kRenderTransAlpha);
    set_pev(nova,pev_renderfx,kRenderFxGlowShell);
    set_pev(nova,pev_renderamt,128.0);

    novaDisplay[id] = nova;
}

/****************************************
* UTILITY FUNCTIONS
****************************************/

// check if prethink is still being used, if not, unhook it
unregister_prethink()
{
    if(fmFwdPPT)
    {
        new i;
        for(i=1;i<=maxPlayers;i++) if(/*isChilled[i] ||*/ isFrozen[i]) break;
        if(i > maxPlayers)
        {
            unregister_forward(FM_PlayerPreThink,fmFwdPPT,0);
            fmFwdPPT = 0;
        }
    }
}

// make the explosion effects
create_blast(team,Float:origin[3])
{
    new rgb[3];
    get_rgb_colors(team,rgb);

    // smallest ring
    message_begin_fl(MSG_PVS,SVC_TEMPENTITY,origin,0);
    write_byte(TE_BEAMCYLINDER);
    write_coord_fl(origin[0]); // x
    write_coord_fl(origin[1]); // y
    write_coord_fl(origin[2]); // z
    write_coord_fl(origin[0]); // x axis
    write_coord_fl(origin[1]); // y axis
    write_coord_fl(origin[2] + 385.0); // z axis
    write_short(exploSpr); // sprite
    write_byte(0); // start frame
    write_byte(0); // framerate
    write_byte(4); // life
    write_byte(60); // width
    write_byte(0); // noise
    write_byte(rgb[0]); // red
    write_byte(rgb[1]); // green
    write_byte(rgb[2]); // blue
    write_byte(100); // brightness
    write_byte(0); // speed
    message_end();

    // medium ring
    message_begin_fl(MSG_PVS,SVC_TEMPENTITY,origin,0);
    write_byte(TE_BEAMCYLINDER);
    write_coord_fl(origin[0]); // x
    write_coord_fl(origin[1]); // y
    write_coord_fl(origin[2]); // z
    write_coord_fl(origin[0]); // x axis
    write_coord_fl(origin[1]); // y axis
    write_coord_fl(origin[2] + 470.0); // z axis
    write_short(exploSpr); // sprite
    write_byte(0); // start frame
    write_byte(0); // framerate
    write_byte(4); // life
    write_byte(60); // width
    write_byte(0); // noise
    write_byte(rgb[0]); // red
    write_byte(rgb[1]); // green
    write_byte(rgb[2]); // blue
    write_byte(100); // brightness
    write_byte(0); // speed
    message_end();

    // largest ring
    message_begin_fl(MSG_PVS,SVC_TEMPENTITY,origin,0);
    write_byte(TE_BEAMCYLINDER);
    write_coord_fl(origin[0]); // x
    write_coord_fl(origin[1]); // y
    write_coord_fl(origin[2]); // z
    write_coord_fl(origin[0]); // x axis
    write_coord_fl(origin[1]); // y axis
    write_coord_fl(origin[2] + 555.0); // z axis
    write_short(exploSpr); // sprite
    write_byte(0); // start frame
    write_byte(0); // framerate
    write_byte(4); // life
    write_byte(60); // width
    write_byte(0); // noise
    write_byte(rgb[0]); // red
    write_byte(rgb[1]); // green
    write_byte(rgb[2]); // blue
    write_byte(100); // brightness
    write_byte(0); // speed
    message_end();

    // light effect
    message_begin_fl(MSG_PAS,SVC_TEMPENTITY,origin,0);
    write_byte(TE_DLIGHT);
    write_coord_fl(origin[0]); // x
    write_coord_fl(origin[1]); // y
    write_coord_fl(origin[2]); // z
    write_byte(floatround(FROST_RADIUS/5.0)); // radius
    write_byte(rgb[0]); // r
    write_byte(rgb[1]); // g
    write_byte(rgb[2]); // b
    write_byte(8); // life
    write_byte(60); // decay rate
    message_end();
}

// give an entity a beam trail
set_beamfollow(ent,life,width,rgb[3],brightness)
{
    clear_beamfollow(ent);

    message_begin(MSG_BROADCAST,SVC_TEMPENTITY);
    write_byte(TE_BEAMFOLLOW);
    write_short(ent); // entity
    write_short(trailSpr); // sprite
    write_byte(life); // life
    write_byte(width); // width
    write_byte(rgb[0]); // red
    write_byte(rgb[1]); // green
    write_byte(rgb[2]); // blue
    write_byte(brightness); // brightness
    message_end();
}

// removes beam trails from an entity
clear_beamfollow(ent)
{
    message_begin(MSG_BROADCAST,SVC_TEMPENTITY);
    write_byte(TE_KILLBEAM);
    write_short(ent); // entity
    message_end();
}

// gets the appropriate color and displays the frostnade icon to the player with the given status
show_icon(id, status)
{
    static rgb[3];
    if(status) get_rgb_colors(_:cs_get_user_team(id), rgb); // only get colors if we need to
    
    message_begin(MSG_ONE,gmsgStatusIcon,_,id);
    write_byte(status); // status (0=hide, 1=show, 2=flash)
    write_string("dmg_cold"); // sprite name
    write_byte(rgb[0]); // red
    write_byte(rgb[1]); // green
    write_byte(rgb[2]); // blue
    message_end();
}

// checks if a weapon id is included in fn_nadetypes
is_wid_in_nadetypes(wid)
{
    new types = get_pcvar_num(pcv_nadetypes);
    
    return ( (wid == CSW_HEGRENADE && (types & NT_HEGRENADE))
        || (wid == CSW_FLASHBANG && (types & NT_FLASHBANG))
        || (wid == CSW_SMOKEGRENADE && (types & NT_SMOKEGRENADE)) );
}

// checks if a player has a frostnade, taking into account fn_override and such.
// returns: STATUS_HIDE = no frostnade, STATUS_SHOW = has frostnade but not deployed, STATUS_FLASH = has frostnade and deployed
player_has_frostnade(id)
{
    new retVal = STATUS_HIDE, curwpn = get_user_weapon(id);
    
    // no override, variable explicitly set
    if(hasFrostNade[id])
    {
        retVal = (curwpn == hasFrostNade[id] ? STATUS_FLASH : STATUS_SHOW);
    }
    
    // override enabled, and I'm on the right team
    else if(get_pcvar_num(pcv_override) && (get_pcvar_num(pcv_teams) & _:cs_get_user_team(id)))
    {        
        new types = get_pcvar_num(pcv_nadetypes);
                    
        if((types & NT_HEGRENADE) && cs_get_user_bpammo(id, CSW_HEGRENADE) > 0)
        {
            retVal = (curwpn == CSW_HEGRENADE ? STATUS_FLASH : STATUS_SHOW);
        }
        
        if(retVal != STATUS_FLASH && (types & NT_FLASHBANG) && cs_get_user_bpammo(id, CSW_FLASHBANG) > 0)
        {
            retVal = (curwpn == CSW_FLASHBANG ? STATUS_FLASH : STATUS_SHOW);
        }
        
        if(retVal != STATUS_FLASH && (types & NT_SMOKEGRENADE) && cs_get_user_bpammo(id, NT_SMOKEGRENADE) > 0)
        {
            retVal = (curwpn == NT_SMOKEGRENADE ? STATUS_FLASH : STATUS_SHOW);
        }
    }
    
    return retVal;
}

// gets RGB colors from the cvar
get_rgb_colors(team,rgb[3])
{
    static color[12], parts[3][4];
    get_pcvar_string(pcv_color,color,11);
    
    // if cvar is set to "team", use colors based on the given team
    if(equali(color,"team",4))
    {
        if(team == 1)
        {
            rgb[0] = 150;
            rgb[1] = 0;
            rgb[2] = 0;
        }
        else
        {
            rgb[0] = 0;
            rgb[1] = 0;
            rgb[2] = 150;
        }
    }
    else
    {
        parse(color,parts[0],3,parts[1],3,parts[2],3);
        rgb[0] = str_to_num(parts[0]);
        rgb[1] = str_to_num(parts[1]);
        rgb[2] = str_to_num(parts[2]);
    }
}

// scale a value equally (inversely?) with the distance that something
// is from the center of another thing. that makes pretty much no sense,
// so basically, the closer we are to the center of a ring, the higher
// our value gets.
//
// EXAMPLE: distance = 60.0, radius = 240.0, maxVal = 100.0, minVal = 20.0
// we are 0.75 (1.0-(60.0/240.0)) of the way to the radius, so scaled with our
// values, it comes out to 80.0 (20.0 + (0.75 * (100.0 - 20.0)))
Float:radius_calc(Float:distance,Float:radius,Float:maxVal,Float:minVal)
{
    if(maxVal <= 0.0) return 0.0;
    if(minVal >= maxVal) return minVal;
    return minVal + ((1.0 - (distance / radius)) * (maxVal - minVal));
}

// sets a user's chilled/frozen speed if applicable
// (NOTE: does NOT reset his maxspeed if he is not chilled/frozen)
set_user_chillfreeze_speed(id)
{
    if(isFrozen[id])
    {
        set_user_maxspeed(id, 1.0);
    }
    else if(isChilled[id])
    {
        set_user_maxspeed(id, get_default_maxspeed(id)*(get_pcvar_float(pcv_chill_speed)/100.0));
    }
}

// gets the maxspeed a user should have, given his current weapon
stock Float:get_default_maxspeed(id)
{    
    new wEnt = get_pdata_cbase(id, m_pActiveItem), Float:result = 250.0;

    if(pev_valid(wEnt))
    {
        ExecuteHam(Ham_CS_Item_GetMaxSpeed, wEnt, result);
    }
    
    return result;
}