module SpheroUtilities
Public Instance Methods
add_checksum(full_bytes)
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# File lib/rubysphero.rb, line 34 def add_checksum(full_bytes) to_chk_bytes = full_bytes.drop(2) full_bytes.push do_checksum(to_chk_bytes) return full_bytes end
do_checksum(bytes)
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# File lib/rubysphero.rb, line 21 def do_checksum(bytes) total=0 bytes.each do | a_byte | total+=a_byte end # each logd "Checksum of these bytes: #{print_format_bytes(bytes)}" chk1= (total%256) chk2= (chk1 ^ 0b11111111) logd "Checksum calculated: #{chk2.to_s(16)}" return chk2 end
print_format_bytes(bytes)
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# File lib/rubysphero.rb, line 11 def print_format_bytes(bytes) return_str="" bytes.each do |rsp_array| return_str += rsp_array.to_s(16) return_str += " " end # each return return_str end