Checking card sets on incoming trade offer ?

[SENPAY98K]

Hi, 
How would you check sets in the incoming trade offers which contains random cards?
There is already a database that is used by level up bots to define how much card in the set of game.
 

[PonyExpress]

If I remember correctly, you can specify language in Options ( https://github.com/DoctorMcKay/node-steam-tradeoffer-manager/wiki/TradeOfferManager#language )
In this case, you will receive all data like name and tags.

This can take up a lot of memory. (in my case, this required several gigabytes with a large number of trading offers / items in offers)

 If language disabled, you can check only classid. I don't know of any database that gives any additional information by classid.

[SENPAY98K]

1 minute ago, PonyExpress said:

If I remember correctly, you can specify language in Options ( https://github.com/DoctorMcKay/node-steam-tradeoffer-manager/wiki/TradeOfferManager#language )
In this case, you will receive all data like name and tags.

This can take up a lot of memory. (in my case, this required several gigabytes with a large number of trading offers / items in offers)

 If language disabled, you can check only classid. I don't know of any database that gives any additional information by classid.

 

The language is not the problem here, 
I receive the offer, i check the offer details, then filter items for trading cards only,
after that i have a database of {appid, number of cards in set} which i need to compare against it
and retrun the amount of sets

Im lacking the idea of how to process it!

[PonyExpress]

In my case it works like this. Maybe this will help you.

// lodash
// cards = { "<appid>": ["<classid>": [ {<item>}, ... ], ... ], ... }
// cardData = {"220":{"amount":8,"name":"Half-Life 2"} ... }

function getSets(cards, callback) {
	let cardSets = {}
	let extraCards = []
	let unknownCards = []
	lodash.forOwn(cards, (cards, id) => {
		id = id.toString()
		if (cardData[id]) {
			let cardCount = lodash.mapValues(cards, array => array.length)
			cardCount = Object.keys(cardCount).map(number => cardCount[number])
			let min = Math.min(...cardCount)
			let max = Math.max(...cardCount)

			// There is at least one full set.
			if (Object.keys(cards).length == cardData[id].amount) {
				cardSets[id] = []
				for (let i = 0; i < min; i++) {
					let set = []
					lodash.forOwn(cards, item => {
						set.push(item[i])
					})
					cardSets[id].push(set)
				}

			// There are no full sets.
			} else {
				min = 0
			}

			// Extra cards:
			for (let i = min; i < max; i++) {
				lodash.forOwn(cards, item => {
					if (item[i]) {
						extraCards.push(item[i])
					}
				})
			}

		// Unknown cards:
		} else {
			lodash.forOwn(cards, item => {
				unknownCards.push(item)
			})
		}
	})
	callback(cardSets, extraCards, unknownCards)
}

 

[SENPAY98K]

2 minutes ago, PonyExpress said:

In my case it works like this. Maybe this will help you.

// lodash
// cards = { "<appid>": ["<classid>": [ {<item>}, ... ], ... ], ... }
// cardData = {"220":{"amount":8,"name":"Half-Life 2"} ... }

function getSets(cards, callback) {
	let cardSets = {}
	let extraCards = []
	let unknownCards = []
	lodash.forOwn(cards, (cards, id) => {
		id = id.toString()
		if (cardData[id]) {
			let cardCount = lodash.mapValues(cards, array => array.length)
			cardCount = Object.keys(cardCount).map(number => cardCount[number])
			let min = Math.min(...cardCount)
			let max = Math.max(...cardCount)

			// There is at least one full set.
			if (Object.keys(cards).length == cardData[id].amount) {
				cardSets[id] = []
				for (let i = 0; i < min; i++) {
					let set = []
					lodash.forOwn(cards, item => {
						set.push(item[i])
					})
					cardSets[id].push(set)
				}

			// There are no full sets.
			} else {
				min = 0
			}

			// Extra cards:
			for (let i = min; i < max; i++) {
				lodash.forOwn(cards, item => {
					if (item[i]) {
						extraCards.push(item[i])
					}
				})
			}

		// Unknown cards:
		} else {
			lodash.forOwn(cards, item => {
				unknownCards.push(item)
			})
		}
	})
	callback(cardSets, extraCards, unknownCards)
}

 

I will try it, thank you

[SENPAY98K]

@PonyExpress

Does not work i guess, returns empty object and arrays

 

const database = {
    "730": { "amount": 5},
    "603750": { "amount": 5},
	...
}

const cards = OFFER.itemsToGive;

await getSets(cards, (cardSets, extraCards, unknownCards) => {
if (cardSets) console.log(cardSets);
if (extraCards) console.log(extraCards);
if (unknownCards) console.log(unknownCards);
})

 

Edited October 4, 2022 by SENPAY98K
added code

[SENPAY98K]

bimp

[That Guy From 199x]

You have to pass the client's/bot's trade window to your getSets function that you use to sort your bot's/client's inventory when making an offer. And yes, you need to set your language to get the appid's of items in trade window otherwise you will end up with "0" sets. Also, you need to check if there are extra cards on the trade-offer as it will be not counted as a set.