[stupok]

I tried to optimize it, tell me what you think:

#include <amxmodx>
#include <fakemeta>

new g_SemiclipThinkerClassname[] = "env_semiclip"
new g_SemiclipThinker

#define MAX_PLAYERS 32

new g_maxplayers
new bool:g_restart_attempt[MAX_PLAYERS + 1]
new bool:g_is_user_alive[MAX_PLAYERS + 1]

public plugin_init()
{
    register_plugin("Semiclip Test 4","1.0","Hawk552")
    
    register_forward(FM_Think, "forward_Think")
    
    //VEN's method to capture player spawn
    register_event("ResetHUD", "event_hud_reset", "be")
    register_clcmd("fullupdate", "clcmd_fullupdate") 
    register_event("TextMsg", "event_restart_attempt", "a", "2=#Game_will_restart_in")
    register_event("DeathMsg", "event_death", "a")
    
    g_maxplayers = global_get(glb_maxClients)
    
    new Ent = engfunc(EngFunc_CreateNamedEntity,engfunc(EngFunc_AllocString,"info_target"))
    if(!pev_valid(Ent))
        return
    
    set_pev(Ent,pev_classname,g_SemiclipThinkerClassname)
    new Float:Time
    global_get(glb_time,Time)
    set_pev(Ent,pev_nextthink,Time + 0.01)
    dllfunc(DLLFunc_Spawn,Ent)
    
    g_SemiclipThinker = Ent
}

public forward_Think(Ent)
{
    if(Ent != g_SemiclipThinker)
        return
    
    static i,Float:Time
    
    for(i=0;i<=g_maxplayers;i++)
    {
        if(g_is_user_alive[i])
        {
            set_pev(i,pev_solid,IsColliding(i) ? SOLID_NOT : SOLID_BBOX)
        }
    }
    
    global_get(glb_time,Time)
    set_pev(Ent,pev_nextthink,Time + 0.01)
}

stock IsColliding(id)
{
    if(pev(id,pev_flags) & FL_ONGROUND || pev(id,pev_button) & IN_JUMP)
        return false
    
    static Ent,Float:Origin[3]
    
    pev(id,pev_origin,Origin)
    
    while((Ent = engfunc(EngFunc_FindEntityInSphere,Ent,Origin,36.0)) != 0)
        if(Ent > 0 && Ent <= g_maxplayers && g_is_user_alive[Ent])
            return true
    
    return false
}

public clcmd_fullupdate()
{
    return PLUGIN_HANDLED_MAIN
}

public event_restart_attempt()
{
    new players[32], num
    get_players(players, num, "a")
    for (new i; i < num; ++i)
        g_restart_attempt[players[i]] = true
}

public event_hud_reset(id)
{
    if (g_restart_attempt[id])
    {
        g_restart_attempt[id] = false
        return
    }
    event_player_spawn(id)
}

// this function is called on player spawn
public event_player_spawn(id)
{
    g_is_user_alive[id] = true
}

public event_death(id)
{
    g_is_user_alive[read_data(2)] = false
}