[Nursik]

Tell me if it works.

PHP Code:

#pragma semicolon 1
#include sourcemod
#include sdkhooks

public void OnPluginStart()
{
    HookEvent("player_spawn", OnPlayerSpawn);
}

public Action OnPlayerSpawn(Event event, const char[] name, bool dontBroadcast)
{
    int client = GetClientOfUserId(event.GetInt("userid")
    if(IsClientInGame(client) && IsPlayerAlive(client))
    {
        CreateTimer(3.0, Timer_StopTakingNoDamage, client);
        SDKHook(client, SDKHook_OnTakeDamage, OnTakeDamage);
    }
}

public Action OnTakeDamage(victim, &attacker, &inflictor, &damage, float damageForce[3], float damagePosition[3])
{
    If (IsClientInGame(victim) && IsPlayerAlive(victim))
    If (damagetype & DMG_FALL)
    {
        damage *= 0.0;
        return Plugin_Changed;
    }
}

public Action:Timer_StopTakingNoDamage(Handle:timer, any:client)
{
    SDKUnhook(client, SDKHook_OnTakeDamage, OnTakeDamage);
}