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[feature] added "getPurchasedServerCost" NS function

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This commit is contained in:
Steven Evans 2018-06-20 12:43:05 -04:00
parent fabc45f496
commit 06a0b75b1c
4 changed files with 57 additions and 10 deletions
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15
doc/source/netscriptfunctions.rst
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@ -670,6 +670,21 @@ purchaseHacknetNode
end of the Hacknet Node's name (e.g The Hacknet Node named 'hacknet-node-4' will have an index of 4). If the player cannot afford
to purchase a new Hacknet Node then the function will return false.
getPurchasedServerCost
^^^^^^^^^^^^^^^^^^^^^^
.. js:function:: getPurchasedServerCost(ram)
:param number ram: Amount of RAM of a potential purchased server. Must be a power of 2 (2, 4, 8, 16, etc.). Maximum value of 1048576 (2^20)
Returns the cost to purchase a server with the specified amount of *ram*.
Examples::
for (i = 1; i <= 20; i++) {
tprint(i + " -- " + getPurchasedServerCost(Math.pow(2, i)));
}
purchaseServer
^^^^^^^^^^^^^^

1
netscript.js
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@ -72,6 +72,7 @@ let NetscriptFunctions =
"serverExists|fileExists|isRunning|" +
"deleteServer|getPurchasedServers|" +
"getPurchasedServerLimit|getPurchasedServerMaxRam|" +
"getPurchasedServerCost|" +
"purchaseServer|round|write|read|peek|clear|rm|getPortHandle|" +
"scriptRunning|scriptKill|getScriptName|getScriptRam|" +
"getHackTime|getGrowTime|getWeakenTime|getScriptIncome|getScriptExpGain|" +

1
src/Constants.js
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@ -70,6 +70,7 @@ let CONSTANTS = {
ScriptHNUpgCoreRamCost: 0.8,
ScriptGetStockRamCost: 2.0,
ScriptBuySellStockRamCost: 2.5,
ScriptGetPurchaseServerRamCost: 0.25,
ScriptPurchaseServerRamCost: 2.25,
ScriptGetPurchasedServerLimit: 0.05,
ScriptGetPurchasedServerMaxRam: 0.05,

50
src/NetscriptFunctions.js
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@ -178,7 +178,25 @@ function NetscriptFunctions(workerScript) {
throw makeRuntimeRejectMsg(workerScript, "Index specified for Hacknet Node is out-of-bounds: " + i);
}
return Player.hacknetNodes[i];
}
};
/**
* @param {number} ram The amount of server RAM to calculate cost of.
* @exception {Error} If the value passed in is not numeric, out of range, or too large of a value.
* @returns {number} The cost of
*/
const getPurchaseServerRamCostGuard = (ram) => {
const guardedRam = Math.round(ram);
if (isNaN(guardedRam) || !powerOfTwo(guardedRam)) {
throw Error("failed due to invalid ram argument. Must be numeric and a power of 2");
}
if (guardedRam > CONSTANTS.PurchasedServerMaxRam) {
throw Error("failed because specified RAM was too high. Maximum RAM on a purchased server is " + CONSTANTS.PurchasedServerMaxRam + "GB");
}
return guardedRam * CONSTANTS.BaseCostFor1GBOfRamServer;
};
return {
hacknet : {
@ -1597,6 +1615,22 @@ function NetscriptFunctions(workerScript) {
return CONSTANTS.PurchasedServerMaxRam;
},
getPurchasedServerCost: function(ram) {
if (workerScript.checkingRam) {
return updateStaticRam("getPurchasedServerCost", CONSTANTS.ScriptGetPurchaseServerRamCost);
}
updateDynamicRam("getPurchasedServerCost", CONSTANTS.ScriptGetPurchaseServerRamCost);
let cost = 0;
try {
cost = getPurchaseServerRamCostGuard(ram);
} catch (e) {
workerScript.scriptRef.log("ERROR: 'getPurchasedServerCost()' " + e.message);
return "";
}
return cost;
},
purchaseServer : function(hostname, ram) {
if (workerScript.checkingRam) {
return updateStaticRam("purchaseServer", CONSTANTS.ScriptPurchaseServerRamCost);
@ -1615,18 +1649,14 @@ function NetscriptFunctions(workerScript) {
return "";
}
ram = Math.round(ram);
if (isNaN(ram) || !isPowerOfTwo(ram)) {
workerScript.scriptRef.log("ERROR: purchaseServer() failed due to invalid ram argument. Must be numeric and a power of 2");
let cost = 0;
try {
cost = getPurchaseServerRamCostGuard(ram);
} catch (e) {
workerScript.scriptRef.log("ERROR: 'purchaseServer()' " + e.message);
return "";
}
if (ram > CONSTANTS.PurchasedServerMaxRam) {
workerScript.scriptRef.log("ERROR: purchasedServer() failed because specified RAM was too high. Maximum RAM on a purchased server is " + CONSTANTS.PurchasedServerMaxRam + "GB");
return "";
}
var cost = ram * CONSTANTS.BaseCostFor1GBOfRamServer;
if (Player.money.lt(cost)) {
workerScript.scriptRef.log("ERROR: Not enough money to purchase server. Need $" + formatNumber(cost, 2));
return "";