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|
key=assert(settings.get"krist.pkey","please set private key")
-- d@ac.kst
our_name = {"d","ac"}
PRICE = 5
ITEM = "minecraft:cobblestone"
sres =textutils.unserializeJSON( http.post("https://krist.dev/ws/start","privatekey="..key).readAll())
assert(sres.ok,"not ok")
ws = assert(http.websocket(sres.url))
nextid = 0
our_addr = "???"
function sendws(t)
t.id = nextid
nextid = nextid + 1
return ws.send(textutils.serializeJSON(t))
end
sendws{type="me"}
function parsemeta(m)
local out = {}
for s in string.gmatch(m..";","(.-);") do
local k,v = s:match"^(.-)=(.-)$"
if k==nil then
out.recipient = s
else
out[k]=v
end
end
return out
end
function stock_amt()
local out = 0
for i=1,16 do
local x = turtle.getItemDetail(i)
if x and x.name == ITEM then out = out + x.count end
end
return out
end
function give(amt)
amt = amt or 1
-- assumes that we have at least amt in stock already
for i=1,16 do
local x = turtle.getItemDetail(i)
if x and x.name == ITEM then
local a = math.min(amt,x.count)
turtle.select(i)
turtle.drop(a)
amt = amt - a
if amt <= 0 then break end
end
end
end
function proctrans(tr)
if tr.to ~= our_addr then return end
if tr.type ~= "transfer" then return end
if not (tr.sent_metaname == our_name[1] and tr.sent_name == our_name[2]) then return end
local meta = parsemeta(tr.metadata)
local function tell(msg) if meta.username then chatbox.tell(meta.username,msg) end end
local function refund() if meta['return'] then sendws { type="make_transaction", to=meta['return'], amount=tr.value } end end
local remainder = tr.value % PRICE
if remainder ~= 0 then
tell("i can only give you a whole number of items. make sure the amount you gave me is a multiple of "..PRICE)
refund()
else
local in_stock = stock_amt()
if in_stock == 0 then
tell("we are out of stock! please yell at ubq323 about this")
refund()
else
local to_give = math.floor(tr.value / PRICE)
if to_give > in_stock then
tell("i don't have that many items in stock, sorry")
refund()
else
give(to_give)
tell("thank you!!! :3")
end
end
end
end
function run_shop()
while true do
msgtxt = assert(ws.receive(),"ws error")
msg = textutils.unserializeJSON(msgtxt)
if msg.type == "response" and msg.responding_to_type == "me" then
our_addr = msg.address.address
end
if msg.type == "event" and msg.event == "transaction" then
proctrans(msg.transaction)
end
end
end
function run_topdisp()
local mtop = peripheral.wrap"top"
while true do
mtop.setTextScale(3.5)
mtop.setTextColor(colors.cyan)
mtop.setCursorPos(1,1)
mtop.write"DIAMONDS"
os.sleep(0.75)
mtop.clear()
os.sleep(0.25)
mtop.setTextScale(3)
mtop.setTextColor(colors.white)
mtop.setCursorPos(1,1)
mtop.write("5KST EACH")
os.sleep(0.75)
mtop.clear()
os.sleep(0.25)
end
end
function run_sidedisp()
local m = peripheral.wrap("left")
local function printseq(q)
for _,v in ipairs(q) do
if type(v) == "number" then
m.setTextColor(v)
elseif type(v) == "table" then
m.setCursorPos(v[1],v[2])
else -- str
m.write(v)
end
end
end
while true do
local sa = stock_amt()
m.clear()
printseq {
{7,1}, colors.orange, "UBQ323", {3,2}, "DIAMOND STORE",
{9,3}, "!!!",
{1,5}, colors.white, "stock: ", colors.yellow, ""..sa,
{1,6}, colors.white, "price: ", colors.yellow, ""..PRICE, colors.white, "kst/item"
}
if sa > 0 then
printseq {
{2,8}, colors.blue, "/pay d@ac.kst "..PRICE,
{2,9}, colors.gray, "(or a multiple",{6,10}," of "..PRICE..")",
}
else
printseq {
{3,8}, colors.red, "out of stock!",
{2,9}, "please come back",{7,10},"soon."
}
end
os.sleep(2)
end
end
print(pcall(parallel.waitForAny,run_shop, run_topdisp, run_sidedisp))
print("hi")
peripheral.call("top","clear")
peripheral.call("left","clear")
|
