OsGetHealth

Gets an avatars health by key.

Example usage:

    default
    {
        touch(integer t)
        {
            key agentID = llDetectedKey(0);
            osCauseDamage(agentID, 50);
            llSay(0, llKey2Name(agentID) + " has " + (string)osGetHealth(agentID) + "% health left.");
        }
    }