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);
}
}
internal static SpriteSheetNode SpriteSheetNode(string identifier)
{
SpriteSheetNode node = s_SpriteSheetNodePool.Get();
node.identifier = identifier;
node.type = StyleASTNodeType.SpriteSheetDeclaration;
return(node);
}
private AnimationData CompileSpriteSheetAnimation(SpriteSheetNode node, AnimationData[] styleSheetAnimations, UISoundData[] uiSoundData)
{
AnimationData data = new AnimationData();
data.name = node.identifier;
data.fileName = context.fileName;
data.animationType = AnimationType.SpriteSheet;
data.options = CompileSpriteSheetOptions(node);
return(data);
}
private void ParseSpriteSheet()
{
StyleToken initialStyleToken = tokenStream.Current;
SpriteSheetNode rootNode = StyleASTNodeFactory.SpriteSheetNode(initialStyleToken);
rootNode.WithLocation(initialStyleToken);
tokenStream.Advance();
AssertTokenTypeAndAdvance(StyleTokenType.BracesOpen);
SpriteSheetParseLoop(rootNode);
nodes.Add(rootNode);
}
private AnimationOptions CompileSpriteSheetOptions(SpriteSheetNode node)
{
AnimationOptions options = new AnimationOptions();
LightList <StyleASTNode> spriteSheetProperties = node.children;
if (spriteSheetProperties == null)
{
return(options);
}
for (int i = 0; i < spriteSheetProperties.Count; i++)
{
if (spriteSheetProperties[i] is PropertyNode property)
{
string optionName = property.identifier.ToLower();
StyleASTNode value = property.children[0];
switch (optionName)
{
case "iterations":
options.iterations = (int)StylePropertyMappers.MapNumberOrInfinite(value, context);
break;
case "delay":
options.delay = StylePropertyMappers.MapUITimeMeasurement(value, context);
break;
case "duration":
options.duration = StylePropertyMappers.MapUITimeMeasurement(value, context);
break;
case "looptype":
options.loopType = StylePropertyMappers.MapEnum <AnimationLoopType>(value, context);
break;
case "direction":
options.direction = StylePropertyMappers.MapEnum <AnimationDirection>(value, context);
break;
case "forwardstartdelay":
options.forwardStartDelay = (int)StylePropertyMappers.MapNumber(value, context);
break;
case "reversestartdelay":
options.reverseStartDelay = (int)StylePropertyMappers.MapNumber(value, context);
break;
case "fps":
options.fps = (int)StylePropertyMappers.MapNumber(value, context);
break;
case "startframe":
options.startFrame = (int)StylePropertyMappers.MapNumber(value, context);
break;
case "endframe":
options.endFrame = (int)StylePropertyMappers.MapNumber(value, context);
break;
case "pathprefix":
options.pathPrefix = StylePropertyMappers.MapString(value, context);
break;
default:
throw new CompileException(property, "Invalid option argument for animation");
}
}
else
{
throw new CompileException(spriteSheetProperties[i], "Invalid option argument for animation");
}
}
return(options);
}