/// <summary>
/// シナリオヘッダを構文解析する
/// </summary>
/// <param name="lexer">字句解析器</param>
/// <returns>シナリオヘッダ</returns>
private static ScenarioHeader ParseHeader(TextLexer lexer)
{
// =
Token token = lexer.GetToken();
if (token.Type != TokenType.Equal)
{
Log.InvalidToken(LogCategory, token, lexer);
return null;
}
// {
token = lexer.GetToken();
if (token.Type != TokenType.OpenBrace)
{
Log.InvalidToken(LogCategory, token, lexer);
return null;
}
ScenarioHeader header = new ScenarioHeader();
while (true)
{
token = lexer.GetToken();
// ファイルの終端
if (token == null)
{
Log.MissingCloseBrace(LogCategory, "header", lexer);
break;
}
// } (セクション終端)
if (token.Type == TokenType.CloseBrace)
{
break;
}
// 無効なトークン
if (token.Type != TokenType.Identifier)
{
Log.InvalidToken(LogCategory, token, lexer);
lexer.SkipLine();
continue;
}
string keyword = token.Value as string;
if (string.IsNullOrEmpty(keyword))
{
continue;
}
keyword = keyword.ToLower();
// name
if (keyword.Equals("name"))
{
string s = ParseString(lexer);
if (s == null)
{
Log.InvalidClause(LogCategory, "name", lexer);
continue;
}
// シナリオヘッダ名
header.Name = s;
continue;
}
// startdate
if (keyword.Equals("startdate"))
{
GameDate date = ParseDate(lexer);
if (date == null)
{
Log.InvalidSection(LogCategory, "startdate", lexer);
continue;
}
// 開始日時
header.StartDate = date;
continue;
}
// startyear
if (keyword.Equals("startyear"))
{
int? n = ParseInt(lexer);
if (!n.HasValue)
{
Log.InvalidClause(LogCategory, "startyear", lexer);
continue;
}
// 開始年
header.StartYear = (int) n;
continue;
}
// endyear
if (keyword.Equals("endyear"))
{
int? n = ParseInt(lexer);
if (!n.HasValue)
{
Log.InvalidClause(LogCategory, "endyear", lexer);
continue;
}
// 終了年
header.EndYear = (int) n;
continue;
}
// free
if (keyword.Equals("free"))
{
bool? b = ParseBool(lexer);
if (!b.HasValue)
{
Log.InvalidClause(LogCategory, "free", lexer);
continue;
}
// 国家の自由選択
header.IsFreeSelection = (bool) b;
continue;
}
// combat
if (keyword.Equals("combat"))
{
bool? b = ParseBool(lexer);
if (!b.HasValue)
{
Log.InvalidClause(LogCategory, "combat", lexer);
continue;
}
// ショートシナリオ
header.IsBattleScenario = (bool) b;
continue;
}
// selectable
if (keyword.Equals("selectable"))
{
IEnumerable<Country> list = ParseCountryList(lexer);
if (list == null)
{
Log.InvalidSection(LogCategory, "selectable", lexer);
continue;
}
// 選択可能国
header.SelectableCountries.AddRange(list);
continue;
}
// set_ai_aggresive
if (keyword.Equals("set_ai_aggresive"))
{
int? n = ParseInt(lexer);
if (!n.HasValue)
{
Log.InvalidClause(LogCategory, "set_ai_aggresive", lexer);
continue;
}
// AIの攻撃性
header.AiAggressive = (int) n;
continue;
}
// set_difficulty
if (keyword.Equals("set_difficulty"))
{
int? n = ParseInt(lexer);
if (!n.HasValue)
{
Log.InvalidClause(LogCategory, "set_difficulty", lexer);
continue;
}
// 難易度
header.Difficulty = (int) n;
continue;
}
// set_gamespeed
if (keyword.Equals("set_gamespeed"))
{
int? n = ParseInt(lexer);
if (!n.HasValue)
{
Log.InvalidClause(LogCategory, "set_gamespeed", lexer);
continue;
}
// ゲームスピード
header.GameSpeed = (int) n;
continue;
}
// 国タグ
string tagName = keyword.ToUpper();
if (Countries.StringMap.ContainsKey(tagName))
{
Country tag = Countries.StringMap[tagName];
if (Countries.Tags.Contains(tag))
{
MajorCountrySettings major = ParseMajorCountry(lexer);
if (major == null)
{
Log.InvalidSection(LogCategory, tagName, lexer);
continue;
}
// 主要国設定
major.Country = tag;
MajorCountrySettings prev = header.MajorCountries.FirstOrDefault(m => m.Country == tag);
if (prev != null)
{
header.MajorCountries.Remove(prev);
}
header.MajorCountries.Add(major);
continue;
}
}
// 無効なトークン
Log.InvalidToken(LogCategory, token, lexer);
lexer.SkipLine();
}
return header;
}
/// <summary>
/// 主要国設定リストを書き出す
/// </summary>
/// <param name="header">シナリオヘッダ</param>
/// <param name="writer">ファイル書き込み用</param>
private static void WriteMajorCountries(ScenarioHeader header, TextWriter writer)
{
foreach (MajorCountrySettings major in header.MajorCountries)
{
WriteMajorCountry(major, writer);
}
}
/// <summary>
/// 選択可能国リストを書き出す
/// </summary>
/// <param name="header">シナリオヘッダ</param>
/// <param name="writer">ファイル書き込み用</param>
private static void WriteSelectableCountries(ScenarioHeader header, TextWriter writer)
{
if (header.SelectableCountries.Count == 0)
{
return;
}
writer.Write(" selectable = {");
WriteCountryList(header.SelectableCountries, writer);
writer.WriteLine(" }");
}
/// <summary>
/// シナリオヘッダを書き出す
/// </summary>
/// <param name="header">シナリオヘッダ</param>
/// <param name="writer">ファイル書き込み用</param>
private static void WriteHeader(ScenarioHeader header, TextWriter writer)
{
writer.WriteLine("header = {");
if (!string.IsNullOrEmpty(header.Name))
{
writer.WriteLine(" name = \"{0}\"", header.Name);
}
if (header.StartDate != null)
{
writer.WriteLine(" startdate = {{ year = {0} }}", header.StartDate.Year);
}
else
{
if (header.StartYear > 0)
{
writer.WriteLine(" startyear = {0}", header.StartYear);
}
if (header.EndYear > 0)
{
writer.WriteLine(" endyear = {0}", header.EndYear);
}
}
if (!header.IsFreeSelection)
{
writer.WriteLine(" free = no");
}
if (header.IsBattleScenario)
{
writer.WriteLine(" combat = yes");
}
WriteSelectableCountries(header, writer);
WriteMajorCountries(header, writer);
writer.WriteLine("}");
}
