#include sourcemod
#include sdktools

public void OnPluginStart()
{
    HookEvent("player_hurt", h)
}

public Action h(Handle event, const char[] name, bool dontbroadcast)
{
    int client = GetClientOfUserId(GetEventInt(event, "userid"))
    int dmg = GetEventInt(event, "dmg_health")
    PrintToChatAll("%i - %N", dmg, client)
}