def generate_overrides
content = "// These variables control the generated sprite output\n// You can override them selectively before you import this file.\n"
sprite_names.map do |sprite_name|
content += "$\#{name}-\#{sprite_name}-position: $\#{name}-position !default;\n$\#{name}-\#{sprite_name}-spacing: $\#{name}-spacing !default;\n$\#{name}-\#{sprite_name}-repeat: $\#{name}-repeat !default;\n"
end.join
content += "\n$#{name}-sprites: sprite-map(\"#{uri}\", \n$cleanup: $#{name}-clean-up,\n"
content += sprite_names.map do |sprite_name|
%Q{ $#{sprite_name}-position: $#{name}-#{sprite_name}-position,
$#{sprite_name}-spacing: $#{name}-#{sprite_name}-spacing,
$#{sprite_name}-repeat: $#{name}-#{sprite_name}-repeat}
end.join(",\n")
content += ");"
end