callbacks.Register("CreateMove", function(cmd)

    -- define localplayer and bomb entity
    local local_player = entities.GetLocalPlayer();
    local bomb = entities.FindByClass("CPlantedC4")[1];

    -- proceed if localplayer exists and bomb is planted
    if (local_player == nil or bomb == nil) then
        return
    end

    -- make sure we're CT
    if (local_player:GetTeamNumber() ~= 3) then
        return
    end

    -- further checks to make sure bomb is still ticking
    if not (bomb:GetProp("m_bBombTicking") and bomb:GetProp("m_bBombDefused") == 0 and globals.CurTime() < bomb:GetProp("m_flC4Blow")) then
        return
    end

    -- if we don't have enough time to defuse, don't do it
    if bomb:GetProp("m_flDefuseCountDown") > bomb:GetProp("m_flC4Blow") then
        return
    end

    -- calculate distance from localplayer to the bomb
    local distance = vector.Distance( {bomb:GetAbsOrigin()}, {local_player:GetAbsOrigin()} )

    -- if we're close enough to the bomb
    if(distance <= 75) then
        -- defuse
        cmd:SetButtons(cmd:GetButtons() | (1 << 5))
    end

end)