private void SpriteSheetParseLoop(SpriteSheetNode rootNode)
{
while (tokenStream.HasMoreTokens && !AdvanceIfTokenType(StyleTokenType.BracesClose))
{
StyleToken typeToken = tokenStream.Current;
string optionName = AssertTokenTypeAndAdvance(StyleTokenType.Identifier).ToLower();
bool typeFound = false;
for (int index = 0; index < s_SpriteSheetOptionNames.Length; index++)
{
string name = s_SpriteSheetOptionNames[index].Item1;
if (name == optionName)
{
AssertTokenTypeAndAdvance(StyleTokenType.EqualSign);
StyleToken variableToken = tokenStream.Current;
PropertyNode propertyNode = StyleASTNodeFactory.PropertyNode(s_SpriteSheetOptionNames[index].Item2);
propertyNode.AddChildNode(ParsePropertyValue());
propertyNode.WithLocation(variableToken);
rootNode.AddChildNode(propertyNode);
typeFound = true;
break;
}
}
if (!typeFound)
{
throw new ParseException(typeToken, $"{optionName} is not a supported spritesheet option. Valid values are: {FormatOptionList(s_SpriteSheetOptionNames)}\n");
}
AssertTokenTypeAndAdvance(StyleTokenType.EndStatement);
}
}
private void ParseProperty(StyleNodeContainer styleRootNode, bool parsingKeyframes = false)
{
StyleToken propertyNodeToken = tokenStream.Current;
string propertyName;
if (AdvanceIfTokenType(StyleTokenType.Cursor))
{
propertyName = propertyNodeToken.value;
}
else if (AdvanceIfTokenType(StyleTokenType.Run))
{
styleRootNode.AddChildNode(ParseRunNode(RunCommandType.Enter, RunAction.Run));
return;
}
else if (AdvanceIfTokenType(StyleTokenType.Pause))
{
styleRootNode.AddChildNode(ParseRunNode(RunCommandType.Enter, RunAction.Pause));
return;
}
else if (AdvanceIfTokenType(StyleTokenType.Stop))
{
styleRootNode.AddChildNode(ParseRunNode(RunCommandType.Enter, RunAction.Stop));
return;
}
else if (AdvanceIfTokenType(StyleTokenType.BracketOpen))
{
if (TryParseCommand(styleRootNode))
{
return;
}
throw new ParseException(tokenStream.Current, "Not sure what you tried here but at this point only [enter] and [exit] run animation would be legal.");
}
else
{
propertyName = AssertTokenTypeAndAdvance(StyleTokenType.Identifier);
if (propertyName == "material" || propertyName == "Material")
{
if (tokenStream.Current == StyleTokenType.Colon)
{
tokenStream.Advance();
string materialName = AssertTokenTypeAndAdvance(StyleTokenType.Identifier);
AssertTokenTypeAndAdvance(StyleTokenType.Dot);
string materialPropertyName = AssertTokenTypeAndAdvance(StyleTokenType.Identifier);
AssertTokenTypeAndAdvance(StyleTokenType.EqualSign);
TextUtil.StringBuilder.Clear();
while (tokenStream.HasMoreTokens && tokenStream.Current != StyleTokenType.EndStatement)
{
TextUtil.StringBuilder.Append(tokenStream.Current.value);
tokenStream.Advance();
}
tokenStream.Advance();
MaterialPropertyNode materialPropertyNode = new MaterialPropertyNode {
materialName = materialName,
identifier = materialPropertyName,
value = TextUtil.StringBuilder.ToString()
};
TextUtil.StringBuilder.Clear();
materialPropertyNode.WithLocation(propertyNodeToken);
styleRootNode.AddChildNode(materialPropertyNode);
return;
}
}
}
AssertTokenTypeAndAdvance(StyleTokenType.EqualSign);
PropertyNode propertyNode = StyleASTNodeFactory.PropertyNode(propertyName);
propertyNode.WithLocation(propertyNodeToken);
while (tokenStream.HasMoreTokens && !AdvanceIfTokenType(StyleTokenType.EndStatement))
{
propertyNode.AddChildNode(ParsePropertyValue());
// we just ignore the comma for now
AdvanceIfTokenType(StyleTokenType.Comma);
}
styleRootNode.AddChildNode(propertyNode);
}