Bitburner-Scripts/servers/home/hacknet.ts

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/*
* TODO:
* The current solution is not optimal, as it's preferable to buy new nodes, even if upgrading is cheaper.
* TODO:
* It may be helpful to calculate the money per second of each node on average, (total mps / total nodes) and compare
* it to the time it would take to purchase the next cheapest upgrade, and if the average mps is greater than the
* negative mps of the upgrade cost, then buy a new node.
* TODO:
* Potential Ideas:
* Find a way to calculate how much mps an individual upgrade would give, and compare it to the average mps of the node.
* ns.hacknet.getNodeStats(0).production
* If the upgrade mps is greater than the average mps, then buy the upgrade.
* If the upgrade mps is less than the average mps, then buy a new node.
*/
enum Type {
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newNode = "node", level = "level", ram = "ram", core = "code",
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}
export async function main(ns: NS) {
let timeout: number = <number> ns.args[0]
let nodes = ns.hacknet.numNodes()
// If there are no nodes, buy one
if (nodes === 0) {
ns.hacknet.purchaseNode()
nodes = 1
}
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let costs: { type: Type, cost: number }[] = []
while (true) {
costs = []
// Go through each node and get the cheapest upgrade
for (let i = 0; i < nodes; i++) {
costs.push(getCheapestCost(ns, i))
}
// Buy the cheapest upgrade from all nodes
let cheapest = Math.min(...costs.map(c => c.cost))
// Find the index of the cheapest cost in the list
let index = costs.findIndex(c => c.cost === cheapest)
// Wait to buy the cheapest upgrade
try {
await buy(ns, costs[index].type, costs[index].cost, index, timeout)
} catch (e) {
ns.tprint(e)
ns.exit()
}
// Make sure that the number of nodes is up-to-date
nodes = ns.hacknet.numNodes()
}
}
/**
* Wait until the player has enough money to buy something
* @param ns Global NS object
* @param money Amount of money to wait for
* @param timeout=-1 Number of seconds to wait before timing out.
* @throws Error if the timeout is reached
* @note This function will wait forever by default
*/
async function waitUntilMoney(ns: NS, money: number, timeout: number = -1) {
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while (ns.getServerMoneyAvailable("home") < money) {
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await ns.sleep(1000)
if (timeout == 0) {
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throw new Error("Timed out waiting for money")
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} else if (timeout > -1) {
timeout--
}
}
}
async function buy(ns: NS, type: Type, cost: number, node: number, timeout: number) {
await waitUntilMoney(ns, cost, timeout)
switch (type) {
case Type.newNode:
ns.hacknet.purchaseNode()
break
case Type.level:
ns.hacknet.upgradeLevel(node)
break
case Type.ram:
ns.hacknet.upgradeRam(node)
break
case Type.core:
ns.hacknet.upgradeCore(node)
break
}
}
function getCheapestCost(ns: NS, node: number) {
let nodeCost = ns.hacknet.getPurchaseNodeCost()
let levelCost = ns.hacknet.getLevelUpgradeCost(node)
let ramCost = ns.hacknet.getRamUpgradeCost(node)
let coreCost = ns.hacknet.getCoreUpgradeCost(node)
let cheapest = Math.min(nodeCost, levelCost, ramCost, coreCost)
switch (cheapest) {
case nodeCost:
return { type: Type.newNode, cost: nodeCost }
case levelCost:
return { type: Type.level, cost: levelCost }
case ramCost:
return { type: Type.ram, cost: ramCost }
case coreCost:
return { type: Type.core, cost: coreCost }
}
}