/**
* <summary>Generates a new event based on the headline template</summary>
* <remarks>
* This method doesn't apply the event; it just generates it.
* </remarks>
*
* <param name="rand">The RNG to use to generate this event. (Default: a brand new one)</param>
* <returns>An event based on this template.</returns>
*/
public EconEvent GenerateNewEvent(IHeadlineContentProvider rng)
{
StringBuilder builder = new StringBuilder();
int affectedItem = -1;
int oldPrice = 0;
foreach (HeadlineToken token in this.headlineTemplate)
{
// Get the subtype:
var subtype = HeadlineTemplate.GetSubType(token, rng);
switch (token.type)
{
case HeadlineTokenType.Item:
{
// Generate an item, whatever kind.
// If we haven't yet generated an item, select that to
// be the item affected by this event.
int item = GenerateItem(subtype, rng);
var itemInfo = rng.GetItemInformation(item);
if (affectedItem == -1)
{
affectedItem = item;
oldPrice = itemInfo.price;
}
builder.Append(itemInfo.name);
break;
}
case HeadlineTokenType.Other:
{
builder.Append(GenerateOther(subtype, rng));
break;
}
case HeadlineTokenType.String:
{
builder.Append(token.str);
break;
}
}
}
int percent = GeneratePercentChange(affectedItem, rng.GetRNG());
return(new EconEvent(builder.ToString(), affectedItem, percent, oldPrice));
}
/**
* <summary>Returns the subtype of the token, randomly selecting one if necessary.</summary>
*
* <param name="token">The token whose subtype to get.</param>
* <param name="rng">The RNG provider to use if necessary.</param>
*
* <returns>The subtype of the token.</returns>
*/
private static HeadlineTokenSubtype GetSubType(HeadlineToken token, IHeadlineContentProvider rng)
{
if (token.subtypes == null || token.subtypes.Count == 0)
{
return(default(HeadlineTokenSubtype));
}
else if (token.subtypes.Count == 1)
{
return(token.subtypes[0]);
}
else
{
var rand = rng.GetRNG();
var index = rand.Next(token.subtypes.Count);
return(token.subtypes[index]);
}
}