// UseIndex() translates an ItemVar (for now, as long as it's a number) into another number that will be saved to the item at the end of the query.
void UseIndex()
{
foreach (XElement index in IndexTable.Elements())
{
if ((string)index.Attribute("type") == "number")
{
int indexNum = (int)ItemVars.Element(index.Attribute("tableVar").Value);
IEnumerable <XElement> indexToSelect =
from indexEle in index.Elements()
where indexNum == (int)indexEle.Attribute("index")
select indexEle;
if (indexToSelect.Count() > 0)
{
XElement selected = indexToSelect.FirstOrDefault();
string itemVar = (string)selected;
int amt = (int)selected.Attribute("amt");
int itemNum = (int)ItemVars.Element(itemVar);
ItemVars.Element(itemVar).Value = (itemNum + amt).ToString();
}
}
}
}
// SelectNode() recursively calls itself based on a few keywords it encounters as it parses each node.
public XElement SelectNode(XElement checkNode)
{
string name = checkNode.Name.ToString();
// Categories will select an ItemVar and find the category node that has the same name as the ItemVar value.
if (name == "Categories")
{
string categoryVar = (string)checkNode.Attribute("varName");
// Iterates through the elements of the Categories node, looking for one named the same as the value of the ItemVar
foreach (XElement category in checkNode.Elements())
{
string categoryID = category.Name.ToString();
if ((string)ItemVars.Element(categoryVar) == categoryID)
{
string nextEleName = category.Elements().FirstOrDefault().Name.ToString();
// Category nodes may contain the actual loot nodes or additional selections
// This checks one element into the node to see if the function must be called again
if (nextEleName == "Categories" || nextEleName == "Roll")
{
return(SelectNode(category.Elements().FirstOrDefault()));
}
else
{
return(category);
}
}
}
Console.WriteLine("No category match found when checking ItemVar " + categoryVar);
return(new XElement("Empty"));
}
// Roll nodes get a type to roll (currently only percentile) and finds the first node that has a maxRoll higher than what was rolled.
else if (name == "Roll")
{
string type = (string)checkNode.Attribute("type");
if (type == "percentile")
{
int randomRoll = RollDie.Next(100) + 1;
IEnumerable <XElement> rollResults =
from result in checkNode.Elements()
where (int)result.Attribute("maxRoll") >= randomRoll
select result;
if (rollResults.Count() > 0)
{
XElement result = rollResults.FirstOrDefault();
return(SelectNode(result));
}
else
{
Console.WriteLine("Roll returned no results.");
return(new XElement("Empty"));
}
}
else
{
Console.WriteLine("Roll type not recognized.");
return(new XElement("Empty"));
}
}
else
{
// Here the function makes sure the next node doesn't require additional selection by checking its name.
// Otherwise the function terminates with either the list of the loot nodes or an ItemVarCheck to make sure the loot is allowed to be saved.
XElement nextNode = checkNode.Elements().FirstOrDefault();
string nextNodeName = nextNode.Name.ToString();
if (nextNodeName == "Categories" || nextNodeName == "Roll")
{
return(SelectNode(nextNode));
}
else
{
return(checkNode);
}
}
}
private XElement ItemVarCheck(XElement checkNode)
{
// gets the XElement to check from ItemVars
string varName = (string)checkNode.Attribute("toCheck");
XElement selectedItemVar = ItemVars.Element(varName);
// checks type to use correct function on selected item
string type = (string)selectedItemVar.Attribute("type");
// selects the element that has the ItemVar name as the value
IEnumerable <XElement> nodesToRead =
from node in checkNode.Elements()
select node;
foreach (XElement node in nodesToRead)
{
if ((string)node == varName)
{
if (type == "number")
{
// gets the number to check against itemvar and the operation to use for the check
int toCheck = (int)selectedItemVar;
int toMatch = (int)checkNode.Attribute("toMatch");
string operation = (string)checkNode.Attribute("op");
int amt = (int)node.Attribute("amt");
// does a boolean operation to determine if the loot items can be used
if (AddSuceed(toCheck, amt, operation, toMatch))
{
return(checkNode);
}
// else, it will choose the "Default" node instead
else
{
Console.WriteLine("ItemVar will not be saved, using default node.");
return(checkNode.Element("Default"));
}
}
else if (type == "string")
{
// gets the ItemVar element and checks if its value equals the toMatch string
string toCheck = (string)selectedItemVar;
string toMatch = (string)checkNode.Attribute("toMatch");
if ((string)ItemVars.Element(toCheck) == toMatch)
{
return(nodesToRead.FirstOrDefault());
}
else
{
return(checkNode.Element("Default"));
}
}
else
{
Console.WriteLine("Node type " + type + " not recognized.");
return(checkNode.Element("Default"));
}
}
}
Console.WriteLine("ItemVar " + varName + " not found in selected nodes, selecting Default.");
return(checkNode.Element("Default"));
}
public void TableRoll(XElement roll, XElement rollVars)
{
int rerollAmt = 0;
XElement firstNode = roll.Elements().FirstOrDefault();
// SelectNode() is a recursive function that serves as the meat of the query.
// The function digs into the Table node to find the XElement that will be used to save to the item (the one containing the loot).
XElement nodeToSelect = SelectNode(firstNode);
if (nodeToSelect.Name.ToString() != "Empty")
{
// Once the SelectNode has dug deep enough, it checks if the changes are going to be valid.
if (nodeToSelect.Elements().FirstOrDefault().Name.ToString() == "ItemVarCheck")
{
// ItemVarCheck() runs through the loot nodes to see if the changes are going to be allowed based on the conditions defined in the Element.
// It either selects the loot node or a node labeled "Default" based on the pending changes.
nodeToSelect = ItemVarCheck(nodeToSelect.Elements().FirstOrDefault());
}
// Goes through each loot element and performs an appropriate action.
foreach (XElement lootNode in nodeToSelect.Elements())
{
string lootAction = lootNode.Name.ToString();
string lootItemVar = (string)lootNode;
switch (lootAction)
{
// AddTable nodes will either add a table to be rolled afterward, or will reroll the current table.
case "AddTable":
if (lootItemVar == roll.Name.ToString())
{
rerollAmt += 1;
}
else
{
rollVars.Add(lootNode);
}
break;
// Save nodes either change the value of a string variable in the ItemVars or add a string to a list in the ItemVars
case "Save":
XElement itemVar = ItemVars.Element(lootItemVar);
SaveToItem(lootNode, itemVar);
break;
// AddNum nodes add to a number value in the ItemVars
case "AddNum":
int amt = (int)lootNode.Attribute("amt");
int itemNum = (int)ItemVars.Element(lootItemVar);
ItemVars.Element(lootItemVar).Value = (itemNum + amt).ToString();
break;
default:
Console.WriteLine("Loot type " + lootAction + " not recognized.");
break;
}
}
}
// If the table has indicated to reroll, call a nested function.
if (rerollAmt > 0)
{
for (int i = 0; i < rerollAmt; i++)
{
TableRoll(roll, rollVars);
}
}
}