public ComplexElement Layout(MineDefineAST ast)
{
var symbolTable = DefaultSymbolsTable();
var rootDef = new ComplexElement();
Plan(ast.Statements, symbolTable, Transform.Identity, rootDef);
return rootDef;
}
public string ItDeterminesBoundaries(string input)
{
var cmplx = new ComplexElement();
input.Split('|')
.Select(x => x.Split(';'))
.Select(x => new {
Dimension = Dimension.Parse(x[0]),
Location = Location.Parse(x[1]),
Element = new StubElement() {
Width = int.Parse(x[2]),
Depth = int.Parse(x[3]),
Height = int.Parse(x[4]),
}
})
.ToList()
.ForEach(x => cmplx.AddBuildInstruction(new BuildInstruction(BuildShape.Box, x.Dimension, x.Location, x.Element)));
return string.Join(";", new[] {cmplx.Width, cmplx.Depth, cmplx.Height});
}
private void Plan(IEnumerable<IStatement> statements, SymbolTable symbolTable, Transform transform, ComplexElement def)
{
foreach (var statement in statements)
{
if (statement is ElementDefinition) {
var anotherDef = (ElementDefinition) statement;
var ele = new ComplexElement();
Plan(anotherDef.Statements, symbolTable.Push(), Transform.Identity, ele);
symbolTable = symbolTable.AddSymbol(anotherDef.Name, ele);
}
else if (statement is BuildByIdentifier)
{
var build = (BuildByIdentifier) statement;
var ele = symbolTable[build.Identifier];
var buildInst = new BuildInstruction(build.Shape, build.Dimension, transform.Adjust(build.Location), ele);
def.AddBuildInstruction(buildInst);
}
else if (statement is BuildByStatements)
{
var build = (BuildByStatements) statement;
var ele = new ComplexElement();
Plan(build.Statements, symbolTable, Transform.Identity, ele);
var buildInst = new BuildInstruction(build.Shape, build.Dimension, transform.Adjust(build.Location), ele);
def.AddBuildInstruction(buildInst);
}
else if (statement is OriginTransformStatement)
{
var transStatement = (OriginTransformStatement) statement;
if (transStatement.Instructions is AbsoluteTransformInstructions)
{
var absInstr = (AbsoluteTransformInstructions) transStatement.Instructions;
var newTrans = transform.Adjust(absInstr.Direction, absInstr.Degree);
Plan(transStatement.Statements,symbolTable,newTrans,def);
}
else
{
var absInstr = (RelativeTransformInstructions) transStatement.Instructions;
var newTrans = transform.Adjust(absInstr.Direction, def);
Plan(transStatement.Statements,symbolTable,newTrans,def);
}
}
}
}
public MineDefineExecutable(MineDefineAST ast, ComplexElement layout)
{
_ast = ast;
_layout = layout;
}