/// <summary>
///
/// </summary>
/// <param name="value"></param>
/// <returns></returns>
public ShaderValidation AddGeneralDirective(IGeneralDirective value)
{
if (value == null)
{
throw new ShaderFileStructureException("Invalid general directive");
}
string errorMessage = null;
if (this.GeneralDirectives.Any(g => g.GetType() == value.GetType() /*TODO: sun*/))
{
errorMessage = "Duplicate general directive";
}
else if (value is IDeformVertexes && GeneralDirectives.Any(g => g is IDeformVertexes))
{
errorMessage = "Duplicate deformVertexes-directive";
}
errorMessage = errorMessage + "";
Logger.Debug($"Added general directive {value.GetType()} to shader.");
this.GeneralDirectives.Add(value);
return(null); // TODO
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private Shader ParseShader()
{
PassWhiteSpace();
// TODO: check if this check is ever needed
if (Position == ParserPosition.EndOfFile)
{
throw new ShaderFileStructureException($"Unexpected end of file.", Index, Path);
}
// Get shader, move forward one line and set reader depth
string shaderName = ParseShaderName();
if (shaderName == null)
{
Logger.Error($"Invalid shader name '{CurrentLine}'", Index, Path);
}
Shader shader = new Shader(shaderName);
Index++;
Position = ParserPosition.InShader;
// Skip whitespace and comments
PassWhiteSpace();
// Expect an opening brace { after shader name definition
if (CurrentLine != Token.OpeningBrace)
{
throw new ShaderFileStructureException($"Expecting {Token.OpeningBrace}", Index, Path);
}
// Move past opening brace, we are now inside the shader
Position = ParserPosition.InShader;
while (Position != ParserPosition.Outside)
{
// Move forward until hitting some text
Index++;
PassWhiteSpace();
// Parse editor level
if (Position == ParserPosition.InShader)
{
// Reached end of current shader block
if (CurrentLine == Token.ClosingBrace)
{
Position = ParserPosition.Outside;
continue;
}
// Hit a stage
if (CurrentLine == Token.OpeningBrace)
{
Position = ParserPosition.InStage;
continue;
}
// Parse surfaceparms
if (LineStartsWith(Token.surfaceparm))
{
// Add shader, and log a warning if it's already added
Surfaceparms?parsed = ParseSurfaceparm();
if (parsed.HasValue)
{
if (!shader.Surfparms.Add(parsed.Value))
{
Logger.Warn($"Duplicate surfaceparm {CurrentLine}.", Index, Path);
}
}
else
{
Logger.Warn($"Invalid surfaceparm {CurrentLine}.", Index, Path);
}
continue;
}
else
{
IGeneralDirective parsed = ParseGeneralDirective();
if (parsed != null)
{
string err = "";//shader.AddGeneralDirective(parsed);
if (!string.IsNullOrEmpty(err))
{
Logger.Warn($"{err} '{CurrentLine}'.", Index, Path);
}
}
continue;
}
}
// Parse stage
else if (Position == ParserPosition.InStage)
{
// Reached end of stage
if (CurrentLine == Token.ClosingBrace)
{
Position = ParserPosition.Outside;
break;
}
}
}
// This point should be reached when current line is the closing brace }
Index++;
return(shader);
}