constant COUNT_MAX : integer := 3;
--set it '1' if the button creates a high pulse when its pressed, otherwise '0'.
constant BTN_ACTIVE : std_logic := '1';

signal count : integer := 0;
signal count2 : integer := 0;
type state_type is (idle,wait_time); --state machine
signal state : state_type := idle;

begin

process(Reset,Clk)
begin
    if(Reset = '1') then
        state <= idle;
        pulse_out <= '0';
   elsif(rising_edge(Clk)) then
        case (state) is
            when idle =>
                if(but_in = BTN_ACTIVE) then
                    state <= wait_time;
                else
                    state <= idle;
                           if(count2 = COUNT_MAX) then
                                count2 <= 0;
                                pulse_out<='0';
                            else
                                count2<=count2+1;
                            end if;
                end if;

            when wait_time =>
                if(count = COUNT_MAX) then
                    count <= 0;
                    if(but_in = BTN_ACTIVE) then
                        pulse_out <= '1';
                          else
                                pulse_out <= '0';
                    end if;
                          count2<=0;
                    state <= idle;
                else
                    count <= count + 1;
                end if;
        end case;
    end if;
end process;