Código:

#include <amxmodx>
#include <amxmisc>
#include <fakemeta>
#include <zombie_plague_advance>
#include <hamsandwich>
#include <fakemeta_util>
#include <ColorChat>

#define PLUGIN "Nowy Plugin"
#define VERSION "1.0"
#define AUTHOR "F1xed"

new const NADE_TYPE_ANTIDOTEBOMB = 6969
new const Float:RADIUS = 200.0
new const sprite_grenade_trail[] = "sprites/laserbeam.spr"
new const sprite_grenade_ring[] = "sprites/shockwave.spr"
new const item_cost = 70
new const item_name[] = "Bomba Antidoto"
new const model_grenade_infect[] = "models/zombie_plague/v_bba_antidoto.mdl"

new item_id
new has_bomb[33]
new cvar_enabled, cvar_fragsinfect, cvar_ammoinfect, cvar_humanbonushp, cvar_flaregrenades
new g_trailSpr, g_exploSpr, g_msgScoreInfo, g_msgDeathMsg, g_msgScoreAttrib

public plugin_init()
{
  register_plugin(PLUGIN, VERSION, AUTHOR)
 
  RegisterHam(Ham_Think, "grenade", "fw_ThinkGrenade")
  RegisterHam(Ham_Killed, "player", "fw_PlayerKilled")
 
  register_forward(FM_SetModel, "fw_SetModel") 
 
  register_message(get_user_msgid("CurWeapon"), "message_cur_weapon")
 
  cvar_enabled = register_cvar("zp_antidote_bomb","1")
  cvar_fragsinfect = get_cvar_pointer("zp_zombie_frags_for_infect")
  cvar_ammoinfect = get_cvar_pointer("zp_zombie_infect_reward")
  cvar_humanbonushp = register_cvar("zp_antidote_bomb_extra_hp","60") 
  cvar_flaregrenades = get_cvar_pointer("zp_flare_grenades")
 
  g_msgScoreInfo = get_user_msgid("ScoreInfo")
  g_msgDeathMsg = get_user_msgid("DeathMsg")
  g_msgScoreAttrib = get_user_msgid("ScoreAttrib")
}

public plugin_precache()
{
  g_trailSpr = engfunc(EngFunc_PrecacheModel, sprite_grenade_trail)
  g_exploSpr = engfunc(EngFunc_PrecacheModel, sprite_grenade_ring)
 
  engfunc(EngFunc_PrecacheModel, model_grenade_infect)
 
  item_id = zp_register_extra_item(item_name,item_cost,ZP_TEAM_HUMAN)
}

public client_disconnect(id)
{
  has_bomb[id] = 0
}

public zp_extra_item_selected(player, itemid)
{
  new name[32]
  if(itemid == item_id)
  {
   get_user_name(player, name, 31)
   has_bomb[player] = 1 
   fm_strip_user_gun(player,9)
   fm_give_item(player,"weapon_smokegrenade")
   ColorChat(0, GREEN, "[ZP]^3 %s^1 Comprou^3 Bomba Antidoto.", name)
  }
 
}

public fw_PlayerKilled(victim, attacker, shouldgib)
{
  has_bomb[victim] = 0 
}

public fw_ThinkGrenade(entity)
{ 
  if(!pev_valid(entity))
      return HAM_IGNORED
     
  static Float:dmgtime 
  pev(entity, pev_dmgtime, dmgtime)
 
  if (dmgtime > get_gametime())
      return HAM_IGNORED 
 
  if(pev(entity, pev_flTimeStepSound) == NADE_TYPE_ANTIDOTEBOMB)
      antidote_explode(entity)
 
  return HAM_SUPERCEDE
}

public fw_SetModel(entity, const model[])
{
  if(!get_pcvar_num(cvar_enabled))
      return 
 
  static Float:dmgtime
  pev(entity, pev_dmgtime, dmgtime)
 
  if (dmgtime == 0.0)
      return
 
  if (equal(model[7], "w_sm", 4))
  {     
      new owner = pev(entity, pev_owner)     
     
      if(!zp_get_user_zombie(owner) && has_bomb[owner])
      {
        set_pcvar_num(cvar_flaregrenades,0)       
       
        fm_set_rendering(entity, kRenderFxGlowShell, 255, 128, 0, kRenderNormal, 16)
       
        message_begin(MSG_BROADCAST, SVC_TEMPENTITY)
        write_byte(TE_BEAMFOLLOW) // TE id
        write_short(entity) // entity
        write_short(g_trailSpr) // sprite
        write_byte(10) // life
        write_byte(10) // width
        write_byte(255) // r
        write_byte(128) // g
        write_byte(0) // b
        write_byte(200) // brightness
        message_end()
       
        set_pev(entity, pev_flTimeStepSound, NADE_TYPE_ANTIDOTEBOMB)
      }
  }
 
}


public antidote_explode(ent)
{
  if (!zp_has_round_started()) return
 
  set_pcvar_num(cvar_flaregrenades,1)
 
  static Float:originF[3]
  pev(ent, pev_origin, originF)
 
  create_blast(originF) 
 
  static attacker
  attacker = pev(ent, pev_owner)
 
  has_bomb[attacker] = 0
 
  static victim
  victim = -1
  while ((victim = engfunc(EngFunc_FindEntityInSphere, victim, originF, RADIUS)) != 0)
  {
      if (!is_user_alive(victim) || !zp_get_user_zombie(victim) || zp_get_user_nemesis(victim) || zp_get_user_assassin(victim) || zp_get_user_first_zombie(victim) || zp_get_user_last_zombie(victim))
        continue
     
      SendDeathMsg(attacker, victim)
      FixDeadAttrib(victim)
      UpdateFrags(attacker, victim, get_pcvar_num(cvar_fragsinfect), 1, 1)
      zp_disinfect_user(victim)
      zp_set_user_ammo_packs(attacker,zp_get_user_ammo_packs(attacker) + get_pcvar_num(cvar_ammoinfect))
      fm_set_user_health(attacker, pev(attacker, pev_health)+get_pcvar_num(cvar_humanbonushp))
     
  }
 
  engfunc(EngFunc_RemoveEntity, ent)
}

public create_blast(const Float:originF[3])
{
  engfunc(EngFunc_MessageBegin, MSG_PVS, SVC_TEMPENTITY, originF, 0)
  write_byte(TE_BEAMCYLINDER) // TE id
  engfunc(EngFunc_WriteCoord, originF[0]) // x
  engfunc(EngFunc_WriteCoord, originF[1]) // y
  engfunc(EngFunc_WriteCoord, originF[2]) // z
  engfunc(EngFunc_WriteCoord, originF[0]) // x axis
  engfunc(EngFunc_WriteCoord, originF[1]) // y axis
  engfunc(EngFunc_WriteCoord, originF[2]+385.0) // z axis
  write_short(g_exploSpr) // sprite
  write_byte(0) // startframe
  write_byte(0) // framerate
  write_byte(4) // life
  write_byte(60) // width
  write_byte(0) // noise
  write_byte(255) // red
  write_byte(128) // green
  write_byte(0) // blue
  write_byte(200) // brightness
  write_byte(0) // speed
  message_end()
 
  engfunc(EngFunc_MessageBegin, MSG_PVS, SVC_TEMPENTITY, originF, 0)
  write_byte(TE_BEAMCYLINDER) // TE id
  engfunc(EngFunc_WriteCoord, originF[0]) // x
  engfunc(EngFunc_WriteCoord, originF[1]) // y
  engfunc(EngFunc_WriteCoord, originF[2]) // z
  engfunc(EngFunc_WriteCoord, originF[0]) // x axis
  engfunc(EngFunc_WriteCoord, originF[1]) // y axis
  engfunc(EngFunc_WriteCoord, originF[2]+470.0) // z axis
  write_short(g_exploSpr) // sprite
  write_byte(0) // startframe
  write_byte(0) // framerate
  write_byte(4) // life
  write_byte(60) // width
  write_byte(0) // noise
  write_byte(255) // red
  write_byte(164) // green
  write_byte(0) // blue
  write_byte(200) // brightness
  write_byte(0) // speed
  message_end()
 
  engfunc(EngFunc_MessageBegin, MSG_PVS, SVC_TEMPENTITY, originF, 0)
  write_byte(TE_BEAMCYLINDER) // TE id
  engfunc(EngFunc_WriteCoord, originF[0]) // x
  engfunc(EngFunc_WriteCoord, originF[1]) // y
  engfunc(EngFunc_WriteCoord, originF[2]) // z
  engfunc(EngFunc_WriteCoord, originF[0]) // x axis
  engfunc(EngFunc_WriteCoord, originF[1]) // y axis
  engfunc(EngFunc_WriteCoord, originF[2]+555.0) // z axis
  write_short(g_exploSpr) // sprite
  write_byte(0) // startframe
  write_byte(0) // framerate
  write_byte(4) // life
  write_byte(60) // width
  write_byte(0) // noise
  write_byte(255) // red
  write_byte(200) // green
  write_byte(0) // blue
  write_byte(200) // brightness
  write_byte(0) // speed
  message_end()
}

public UpdateFrags(attacker, victim, frags, deaths, scoreboard)
{
  set_pev(attacker, pev_frags, float(pev(attacker, pev_frags) + frags))
 
  fm_set_user_deaths(victim, fm_get_user_deaths(victim) + deaths)
 
  if (scoreboard)
  { 
      message_begin(MSG_BROADCAST, g_msgScoreInfo)
      write_byte(attacker) // id
      write_short(pev(attacker, pev_frags)) // frags
      write_short(fm_get_user_deaths(attacker)) // deaths
      write_short(0) // class?
      write_short(fm_get_user_team(attacker)) // team
      message_end()
     
      message_begin(MSG_BROADCAST, g_msgScoreInfo)
      write_byte(victim) // id
      write_short(pev(victim, pev_frags)) // frags
      write_short(fm_get_user_deaths(victim)) // deaths
      write_short(0) // class?
      write_short(fm_get_user_team(victim)) // team
      message_end()
  }
}

stock fm_set_user_deaths(id, value)
{
  set_pdata_int(id, 444, value, 5)
}

stock fm_get_user_deaths(id)
{
  return get_pdata_int(id, 444, 5)
}


stock fm_get_user_team(id)
{
  return get_pdata_int(id, 114, 5)
}

public SendDeathMsg(attacker, victim)
{
  message_begin(MSG_BROADCAST, g_msgDeathMsg)
  write_byte(attacker) // killer
  write_byte(victim) // victim
  write_byte(1) // headshot flag
  write_string("grenade") // killer's weapon
  message_end()
}

public FixDeadAttrib(id)
{
  message_begin(MSG_BROADCAST, g_msgScoreAttrib)
  write_byte(id) // id
  write_byte(0) // attrib
  message_end()
}

public replace_models(id)
{
  if (!is_user_alive(id))
      return
 
  if(get_user_weapon(id) == CSW_SMOKEGRENADE && has_bomb[id])
  {
      set_pev(id, pev_viewmodel2, model_grenade_infect)
     
  }
}

public message_cur_weapon(msg_id, msg_dest, msg_entity)
{
  replace_models(msg_entity)
}