Not sure why you would have him broadcast a 'note on' and 'note off' message. I would use this for the computers behind the noteblocks:
local note = "whatever note you want to play" --ex. E F G A B C D including sharps and flats
while true do
id, message = os.pullEvent("rednet_message")
if message == note then
--handle redstone turn-on state
--turn off redstone state
end
end
Make the clients turn off redstone themselves, no reason to add extra network overhead. Note: This loop will run forever, that was intended.
As for the server, I would create a program that loads a table from a file into memory and then will broadcast each value in the table, using a timer to regulate your time BPM.
local iBPM = nil
if tSong[1] ~= "nil" then --Yes, this is a string because leaving a nil key in a table is poor programming etiquette, if you ask me.
iBPM = 60 / tSong[1]
else
print("Enter BPM: ")
iBPM = 60 / tonumber(io.read())
end
tTimer = os.startTimer(iBPM)
A value could be added in the beginning of the table(example above) to indicate the BPM(beats per minute) of a song. My example breaks down BPM into BPS as timers use seconds, not minutes; Which is how I'd keep track of BPM.
Ideally you would want your timer to cycle at least 64(must be base 2, as that's how music works) times per measure, but that could cause too much overhead/exponential increases in memory required by the table as most entries will be 0 or "nil". Then I'd use a code like this to read/broadcast:
local terminate = false
local iBPM --previously declared, just here so you do not forget
local i = 3
local iEnd = tSong[2] --need some internal way to tell the end of the song, table length stored in entry 2. Just thought of a better way using #tSong but I'm not going to change the code a third time.
while terminate == false do
evt, p1 = os.pullEvent("timer")
if p1 == "tTimer" then
tTimer = os.startTimer(iBPM)
end
rednet.broadcast(tSong[i])
i = i + 1
if i == iEnd + 1 then
terminate = true
end
end
One problem with this is that your song can only play one note at a time so your solution is to use matrices or do some fancy parallel API shit. Which I don't know.
I planned to create a music editor, music player, and a turtle program to set up your player, based on what I've described above. But I couldn't find a good spot for it, so the project was scrapped (biggest reason why my projects fail is that they're never even started).
Sources: I know a bit about music too
EDIT: After editing for the 10
999th time, and reformatting my code each time, I decided that someone needs to fix that about the forums. EDIT OF EDIT:
There was something important I wanted to add to this post code-wise, but I can't remember what it was… Oh I remember now.
Since there are multiple instruments, it would be wise to add that into the entry before what actual note is played, here's an example table.
local tSong = {1 C, 2 E, 5 F, 2 G, 3 A, 4 B}
You won't have to change the client code that I posted in the beginning of the post, you must merely change the contents of variable 'note' to include which instrument it is.
