Thanks John Blommers (https://github.com/akkartik/lines.love/issues/1#issuecomment-1159582457)
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elseif Current_drawing_mode == 'rectangle' then
if #drawing.pending.vertices < 2 then
love.graphics.print("* Press 'p' to add a vertex to the rectangle", Margin_left+30,y)
y = y + Line_height
else
love.graphics.print('* Release the mouse button to finish drawing the rectangle', Margin_left+30,y)
y = y + Line_height
love.graphics.print("* Press 'p' to replace the second vertext of the rectangle", Margin_left+30,y)
y = y + Line_height
end
elseif Current_drawing_mode == 'square' then
if #drawing.pending.vertices < 2 then
love.graphics.print("* Press 'p' to add a vertex to the square", Margin_left+30,y)
y = y + Line_height
else
love.graphics.print('* Release the mouse button to finish drawing the square', Margin_left+30,y)
y = y + Line_height
love.graphics.print("* Press 'p' to replace the second vertext of the square", Margin_left+30,y)
y = y + Line_height
end