hlmod.hu

#include <amxmodx>
#include <amxmisc>
#include <fakemeta>

new const VERSION[ ] = "1.2.3"
new const TRKCVAR[ ] = "grab_plus_version"
#define ADMIN ADMIN_LEVEL_A

#define TSK_CHKE 50

#define SF_FADEOUT 0

new client_data[33][4]
#define GRABBED  0
#define GRABBER  1
#define GRAB_LEN 2
#define FLAGS    3

#define CDF_IN_PUSH   (1<<0)
#define CDF_IN_PULL   (1<<1)
#define CDF_NO_CHOKE  (1<<2)

//Cvar Pointers
new p_enabled, p_players_only
new p_throw_force, p_min_dist, p_speed, p_grab_force
new p_choke_time, p_choke_dmg, p_auto_choke
new p_glow_r, p_glow_b, p_glow_g, p_glow_a
new p_fade, p_glow

//Pseudo Constants
new MAXPLAYERS
new SVC_SCREENFADE, SVC_SCREENSHAKE, WTF_DAMAGE

public plugin_init( )
{
   register_plugin( "Grab+", VERSION, "Ian Cammarata" )
   register_cvar( TRKCVAR, VERSION, FCVAR_SERVER )
   set_cvar_string( TRKCVAR, VERSION )
   
   p_enabled = register_cvar( "gp_enabled", "1" )
   p_players_only = register_cvar( "gp_players_only", "0" )
   
   p_min_dist = register_cvar ( "gp_min_dist", "90" )
   p_throw_force = register_cvar( "gp_throw_force", "1500" )
   p_grab_force = register_cvar( "gp_grab_force", "8" )
   p_speed = register_cvar( "gp_speed", "5" )
   
   p_choke_time = register_cvar( "gp_choke_time", "1.5" )
   p_choke_dmg = register_cvar( "gp_choke_dmg", "5" )
   p_auto_choke = register_cvar( "gp_auto_choke", "1" )
   
   p_glow_r = register_cvar( "gp_glow_r", "50" )
   p_glow_g = register_cvar( "gp_glow_g", "0" )
   p_glow_b = register_cvar( "gp_glow_b", "0" )
   p_glow_a = register_cvar( "gp_glow_a", "200" )
   
   p_fade = register_cvar( "gp_screen_fade", "1" )
   p_glow = register_cvar( "gp_glow", "1" )
   
   register_clcmd( "amx_grab", "force_grab", ADMIN, "Grab client & teleport to you." )
   register_clcmd( "grab_toggle", "grab_toggle", ADMIN, "press once to grab and again to release" )
   register_clcmd( "+grab", "grab", ADMIN, "bind a key to +grab" )
   register_clcmd( "-grab", "unset_grabbed" )
   
   register_clcmd( "+push", "push", ADMIN, "bind a key to +push" )
   register_clcmd( "-push", "push" )
   register_clcmd( "+pull", "pull", ADMIN, "bind a key to +pull" )
   register_clcmd( "-pull", "pull" )
   register_clcmd( "push", "push2" )
   register_clcmd( "pull", "pull2" )
   
   register_clcmd( "drop" ,"throw" )
   
   register_event( "DeathMsg", "DeathMsg", "a" )
   
   register_forward( FM_PlayerPreThink, "fm_player_prethink" )
   
   register_dictionary( "grab_plus.txt" )
   
   MAXPLAYERS = get_maxplayers()
   
   SVC_SCREENFADE = get_user_msgid( "ScreenFade" )
   SVC_SCREENSHAKE = get_user_msgid( "ScreenShake" )
   WTF_DAMAGE = get_user_msgid( "Damage" )
}

public plugin_precache( )
{
   precache_sound( "player/PL_PAIN2.WAV" )
} 

public fm_player_prethink( id )
{
   new target
   //Search for a target
   if ( client_data[id][GRABBED] == -1 )
   {
      new Float:orig[3], Float:ret[3]
      get_view_pos( id, orig )
      ret = vel_by_aim( id, 9999 )
      
      ret[0] += orig[0]
      ret[1] += orig[1]
      ret[2] += orig[2]
      
      target = traceline( orig, ret, id, ret )
      
      if( 0 < target <= MAXPLAYERS )
      {
         if( is_grabbed( target, id ) ) return FMRES_IGNORED
         set_grabbed( id, target )
      }
      else if( !get_pcvar_num( p_players_only ) )
      {
         new movetype
         if( target && pev_valid( target ) )
         {
            movetype = pev( target, pev_movetype )
            if( !( movetype == MOVETYPE_WALK || movetype == MOVETYPE_STEP || movetype == MOVETYPE_TOSS ) )
               return FMRES_IGNORED
         }
         else
         {
            target = 0
            new ent = engfunc( EngFunc_FindEntityInSphere, -1, ret, 12.0 )
            while( !target && ent > 0 )
            {
               movetype = pev( ent, pev_movetype )
               if( ( movetype == MOVETYPE_WALK || movetype == MOVETYPE_STEP || movetype == MOVETYPE_TOSS )
                     && ent != id  )
                  target = ent
               ent = engfunc( EngFunc_FindEntityInSphere, ent, ret, 12.0 )
            }
         }
         if( target )
         {
            if( is_grabbed( target, id ) ) return FMRES_IGNORED
            set_grabbed( id, target )
         }
      }
   }
   
   target = client_data[id][GRABBED]
   //If they've grabbed something
   if( target > 0 )
   {
      if( !pev_valid( target ) || ( pev( target, pev_health ) < 1 && pev( target, pev_max_health ) ) )
      {
         unset_grabbed( id )
         return FMRES_IGNORED
      }
       
      //Use key choke
      if( pev( id, pev_button ) & IN_USE )
         do_choke( id )
      
      //Push and pull
      new cdf = client_data[id][FLAGS]
      if ( cdf & CDF_IN_PULL )
         do_pull( id )
      else if ( cdf & CDF_IN_PUSH )
         do_push( id )
      
      if( target > MAXPLAYERS ) grab_think( id )
   }
   
   //If they're grabbed
   target = client_data[id][GRABBER]
   if( target > 0 ) grab_think( target )
   
   return FMRES_IGNORED
}

public grab_think( id ) //id of the grabber
{
   new target = client_data[id][GRABBED]
   
   //Keep grabbed clients from sticking to ladders
   if( pev( target, pev_movetype ) == MOVETYPE_FLY && !(pev( target, pev_button ) & IN_JUMP ) ) client_cmd( target, "+jump;wait;-jump" )
   
   //Move targeted client
   new Float:tmpvec[3], Float:tmpvec2[3], Float:torig[3], Float:tvel[3]
   
   get_view_pos( id, tmpvec )
   
   tmpvec2 = vel_by_aim( id, client_data[id][GRAB_LEN] )
   
   torig = get_target_origin_f( target )
   
   new force = get_pcvar_num( p_grab_force )
   
   tvel[0] = ( ( tmpvec[0] + tmpvec2[0] ) - torig[0] ) * force
   tvel[1] = ( ( tmpvec[1] + tmpvec2[1] ) - torig[1] ) * force
   tvel[2] = ( ( tmpvec[2] + tmpvec2[2] ) - torig[2] ) * force
   
   set_pev( target, pev_velocity, tvel )
}

stock Float:get_target_origin_f( id )
{
   new Float:orig[3]
   pev( id, pev_origin, orig )
   
   //If grabbed is not a player, move origin to center
   if( id > MAXPLAYERS )
   {
      new Float:mins[3], Float:maxs[3]
      pev( id, pev_mins, mins )
      pev( id, pev_maxs, maxs )
      
      if( !mins[2] ) orig[2] += maxs[2] / 2
   }
   
   return orig
}

public grab_toggle( id, level, cid )
{
   if( !client_data[id][GRABBED] ) grab( id, level, cid )
   else unset_grabbed( id )
   
   return PLUGIN_HANDLED
}

public grab( id, level, cid )
{
   if( !cmd_access( id, level, cid, 1 ) || !get_pcvar_num( p_enabled ) ) return PLUGIN_HANDLED
   
   if ( !client_data[id][GRABBED] ) client_data[id][GRABBED] = -1   
   screenfade_in( id )
   
   return PLUGIN_HANDLED
}

public screenfade_in( id )
{
   if( get_pcvar_num( p_fade ) )
   {
      message_begin( MSG_ONE, SVC_SCREENFADE, _, id )
      write_short( 10000 ) //duration
      write_short( 0 ) //hold
      write_short( SF_FADE_IN + SF_FADE_ONLYONE ) //flags
      write_byte( get_pcvar_num( p_glow_r ) ) //r
      write_byte( get_pcvar_num( p_glow_g ) ) //g
      write_byte( get_pcvar_num( p_glow_b ) ) //b
      write_byte( get_pcvar_num( p_glow_a ) / 2 ) //a
      message_end( )
   }
}

public throw( id )
{
   new target = client_data[id][GRABBED]
   if( target > 0 )
   {
      set_pev( target, pev_velocity, vel_by_aim( id, get_pcvar_num(p_throw_force) ) )
      unset_grabbed( id )
      return PLUGIN_HANDLED
   }

   return PLUGIN_CONTINUE
}

public unset_grabbed( id )
{
   new target = client_data[id][GRABBED]
   if( target > 0 && pev_valid( target ) )
   {
      set_pev( target, pev_renderfx, kRenderFxNone )
      set_pev( target, pev_rendercolor, {255.0, 255.0, 255.0} )
      set_pev( target, pev_rendermode, kRenderNormal )
      set_pev( target, pev_renderamt, 16.0 )
      
      if( 0 < target <= MAXPLAYERS )
         client_data[target][GRABBER] = 0
   }
   client_data[id][GRABBED] = 0
   
   if( get_pcvar_num( p_fade ) )
   {
      message_begin( MSG_ONE, SVC_SCREENFADE, _, id )
      write_short( 10000 ) //duration
      write_short( 0 ) //hold
      write_short( SF_FADEOUT ) //flags
      write_byte( get_pcvar_num( p_glow_r ) ) //r
      write_byte( get_pcvar_num( p_glow_g ) ) //g
      write_byte( get_pcvar_num( p_glow_b ) ) //b
      write_byte( get_pcvar_num( p_glow_a ) / 2 ) //a
      message_end( )
   }
}

//Grabs onto someone
public set_grabbed( id, target )
{
   if( get_pcvar_num( p_glow ) )
   {
      new Float:color[3]
      color[0] = get_pcvar_float( p_glow_r )
      color[1] = get_pcvar_float( p_glow_g )
      color[2] = get_pcvar_float( p_glow_b )
      set_pev( target, pev_renderfx, kRenderFxGlowShell )
      set_pev( target, pev_rendercolor, color )
      set_pev( target, pev_rendermode, kRenderTransColor )
      set_pev( target, pev_renderamt, get_pcvar_float( p_glow_a ) )
   }
   
   if( 0 < target <= MAXPLAYERS )
      client_data[target][GRABBER] = id
   client_data[id][FLAGS] = 0
   client_data[id][GRABBED] = target
   new Float:torig[3], Float:orig[3]
   pev( target, pev_origin, torig )
   pev( id, pev_origin, orig )
   client_data[id][GRAB_LEN] = floatround( get_distance_f( torig, orig ) )
   if( client_data[id][GRAB_LEN] < get_pcvar_num( p_min_dist ) ) client_data[id][GRAB_LEN] = get_pcvar_num( p_min_dist )
}

public push( id )
{
   client_data[id][FLAGS] ^= CDF_IN_PUSH
   return PLUGIN_HANDLED
}

public pull( id )
{
   client_data[id][FLAGS] ^= CDF_IN_PULL
   return PLUGIN_HANDLED
}

public push2( id )
{
   if( client_data[id][GRABBED] > 0 )
   {
      do_push( id )
      return PLUGIN_HANDLED
   }
   return PLUGIN_CONTINUE
}

public pull2( id )
{
   if( client_data[id][GRABBED] > 0 )
   {
      do_pull( id )
      return PLUGIN_HANDLED
   }
   return PLUGIN_CONTINUE
}

public do_push( id )
   if( client_data[id][GRAB_LEN] < 9999 )
      client_data[id][GRAB_LEN] += get_pcvar_num( p_speed )

public do_pull( id )
{
   new mindist = get_pcvar_num( p_min_dist )
   new len = client_data[id][GRAB_LEN]
   
   if( len > mindist )
   {
      len -= get_pcvar_num( p_speed )
      if( len < mindist ) len = mindist
      client_data[id][GRAB_LEN] = len
   }
   else if( get_pcvar_num( p_auto_choke ) )
      do_choke( id )
}

public do_choke( id )
{
   new target = client_data[id][GRABBED]
   if( client_data[id][FLAGS] & CDF_NO_CHOKE || id == target || target > MAXPLAYERS) return
   
   new dmg = get_pcvar_num( p_choke_dmg )
   new vec[3]
   FVecIVec( get_target_origin_f( target ), vec )
   
   message_begin( MSG_ONE, SVC_SCREENSHAKE, _, target )
   write_short( 999999 ) //amount
   write_short( 9999 ) //duration
   write_short( 999 ) //frequency
   message_end( )
   
   message_begin( MSG_ONE, SVC_SCREENFADE, _, target )
   write_short( 9999 ) //duration
   write_short( 100 ) //hold
   write_short( SF_FADE_MODULATE ) //flags
   write_byte( get_pcvar_num( p_glow_r ) ) //r
   write_byte( get_pcvar_num( p_glow_g ) ) //g
   write_byte( get_pcvar_num( p_glow_b ) ) //b
   write_byte( 200 ) //a
   message_end( )
   
   message_begin( MSG_ONE, WTF_DAMAGE, _, target )
   write_byte( 0 ) //damage armor
   write_byte( dmg ) //damage health
   write_long( DMG_CRUSH ) //damage type
   write_coord( vec[0] ) //origin[x]
   write_coord( vec[1] ) //origin[y]
   write_coord( vec[2] ) //origin[z]
   message_end( )
      
   message_begin( MSG_BROADCAST, SVC_TEMPENTITY )
   write_byte( TE_BLOODSTREAM )
   write_coord( vec[0] ) //pos.x
   write_coord( vec[1] ) //pos.y
   write_coord( vec[2] + 15 ) //pos.z
   write_coord( random_num( 0, 255 ) ) //vec.x
   write_coord( random_num( 0, 255 ) ) //vec.y
   write_coord( random_num( 0, 255 ) ) //vec.z
   write_byte( 70 ) //col index
   write_byte( random_num( 50, 250 ) ) //speed
   message_end( )
   
   new health = pev( target, pev_health ) - dmg
   set_pev( target, pev_health, float( health ) )
   if( health < 1 ) dllfunc( DLLFunc_ClientKill, target )
   
   emit_sound( target, CHAN_BODY, "player/PL_PAIN2.WAV", VOL_NORM, ATTN_NORM, 0, PITCH_NORM )
   
   client_data[id][FLAGS] ^= CDF_NO_CHOKE
   set_task( get_pcvar_float( p_choke_time ), "clear_no_choke", TSK_CHKE + id )
}

public clear_no_choke( tskid )
{
   new id = tskid - TSK_CHKE
   client_data[id][FLAGS] ^= CDF_NO_CHOKE
}

//Grabs the client and teleports them to the admin
public force_grab(id, level, cid)
{
   if( !cmd_access( id, level, cid, 1 ) || !get_pcvar_num( p_enabled ) ) return PLUGIN_HANDLED

   new arg[33]
   read_argv( 1, arg, 32 )

   new targetid = cmd_target( id, arg, 1 )
   
   if( is_grabbed( targetid, id ) ) return PLUGIN_HANDLED
   if( !is_user_alive( targetid ) )
   {
      client_print( id, print_console, "[AMXX] %L", id, "COULDNT" )
      return PLUGIN_HANDLED
   }
   
   //Safe to tp target to aim spot?
   new Float:tmpvec[3], Float:orig[3], Float:torig[3], Float:trace_ret[3]
   new bool:safe = false, i
   
   get_view_pos( id, orig )
   tmpvec = vel_by_aim( id, get_pcvar_num( p_min_dist ) )
   
   for( new j = 1; j < 11 && !safe; j++ )
   {
      torig[0] = orig[0] + tmpvec[i] * j
      torig[1] = orig[1] + tmpvec[i] * j
      torig[2] = orig[2] + tmpvec[i] * j
      
      traceline( tmpvec, torig, id, trace_ret )
      
      if( get_distance_f( trace_ret, torig ) ) break
      
      engfunc( EngFunc_TraceHull, torig, torig, 0, HULL_HUMAN, 0, 0 )
      if ( !get_tr2( 0, TR_StartSolid ) && !get_tr2( 0, TR_AllSolid ) && get_tr2( 0, TR_InOpen ) )
         safe = true
   }
   
   //Still not safe? Then find another safe spot somewhere around the grabber
   pev( id, pev_origin, orig )
   new try[3]
   orig[2] += 2
   while( try[2] < 3 && !safe )
   {
      for( i = 0; i < 3; i++ )
         switch( try[i] )
         {
            case 0 : torig[i] = orig[i] + ( i == 2 ? 80 : 40 )
            case 1 : torig[i] = orig[i]
            case 2 : torig[i] = orig[i] - ( i == 2 ? 80 : 40 )
         }
      
      traceline( tmpvec, torig, id, trace_ret )
      
      engfunc( EngFunc_TraceHull, torig, torig, 0, HULL_HUMAN, 0, 0 )
      if ( !get_tr2( 0, TR_StartSolid ) && !get_tr2( 0, TR_AllSolid ) && get_tr2( 0, TR_InOpen )
            && !get_distance_f( trace_ret, torig ) ) safe = true
      
      try[0]++
      if( try[0] == 3 )
      {
         try[0] = 0
         try[1]++
         if( try[1] == 3 )
         {
            try[1] = 0
            try[2]++
         }
      }
   }
   
   if( safe )
   {
      set_pev( targetid, pev_origin, torig )
      set_grabbed( id, targetid )
      screenfade_in( id )   
   }
   else client_print( id, print_chat, "[AMXX] %L", id, "COULDNT" )

   return PLUGIN_HANDLED
}

public is_grabbed( target, grabber )
{
   for( new i = 1; i <= MAXPLAYERS; i++ )
      if( client_data[i][GRABBED] == target )
      {
         client_print( grabber, print_chat, "[AMXX] %L", grabber, "ALREADY" )
         unset_grabbed( grabber )
         return true
      }
   return false
}

public DeathMsg( )
   kill_grab( read_data( 2 ) )

public client_disconnect( id )
{
   kill_grab( id )
   return PLUGIN_CONTINUE
}

public kill_grab( id )
{
   //If given client has grabbed, or has a grabber, unset it
   if( client_data[id][GRABBED] )
      unset_grabbed( id )
   else if( client_data[id][GRABBER] )
      unset_grabbed( client_data[id][GRABBER] )
}

stock traceline( const Float:vStart[3], const Float:vEnd[3], const pIgnore, Float:vHitPos[3] )
{
   engfunc( EngFunc_TraceLine, vStart, vEnd, 0, pIgnore, 0 )
   get_tr2( 0, TR_vecEndPos, vHitPos )
   return get_tr2( 0, TR_pHit )
}

stock get_view_pos( const id, Float:vViewPos[3] )
{
   new Float:vOfs[3]
   pev( id, pev_origin, vViewPos )
   pev( id, pev_view_ofs, vOfs )      
   
   vViewPos[0] += vOfs[0]
   vViewPos[1] += vOfs[1]
   vViewPos[2] += vOfs[2]
}

stock Float:vel_by_aim( id, speed = 1 )
{
   new Float:v1[3], Float:vBlah[3]
   pev( id, pev_v_angle, v1 )
   engfunc( EngFunc_AngleVectors, v1, v1, vBlah, vBlah )
   
   v1[0] *= speed
   v1[1] *= speed
   v1[2] *= speed
   
   return v1
}