How to center any text or print with borders

text_print_helpers.p8

-- a little helper function to print centered text
function print_center(text, x, y, color)
    -- get the lenght of the text
    -- if you did not know, print returns the position of the last character
    -- so fi you print offscreen, starting from 0 you will get the exact lenght of the text
    local len = print(text, 0, 400, color)
    print(text, x-(len/2), y, color)
end


function print_outline(_txt,_x,_y,_clr,_bclr,_thick)
    -- if we don't pass a background color set it to white
    -- thickness if 1 default
    if _bclr == nil then _bclr = 7 end
	if _thick == nil then _thick = 1 end

    -- draw the text with the outline color offsetted in each direction
    -- based from the original text position we want to draw.
    -- This will create a big blob of singular colors, which's outliens
    -- will perfectly match the printed text outline
    for x=-_thick,_thick do
        for y=-_thick,_thick do
            print(_txt, _x-x, _y-y, _bclr)
        end
    end

    -- draw the original text with the intended color in the middle
    -- of the blob, creating the outline effect
    print(_txt, _x, _y, _clr)
end

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