#include sdktools

public OnPluginStart()
{
    HookEvent("player_hurt", EventHurt);
}

public Action EventHurt(Event event, const char[] name, bool dontBroadcast)
{
    int client = GetClientOfUserId(GetEventInt(event, "userid"))
    if(bIsSurvivor(client))
    {
        for(int i = 1; i <= GetRandomInt(4, 20); ++i)
        {
            BloodSpray(client)
        }
    }
}

stock BloodSpray(iClient)
{
    new iEnt = CreateEntityByName("env_blood");
    if (iEnt == -1)
    DispatchSpawn(iEnt);
    DispatchKeyValue(iEnt, "spawnflags", "13");
    DispatchKeyValue(iEnt, "amount", "100");
    AcceptEntityInput(iEnt, "EmitBlood", iClient);
    RemoveEdict(iEnt);
}

stock bool bIsSurvivor(int client)
{
    return client > 0 && client <= MaxClients && IsClientInGame(client) && GetClientTeam(client) == 2 && !IsClientInKickQueue(client) && IsPlayerAlive(client);
}