public IEnumerable <Proj> Genetate()
{
List <Proj> s = new List <Proj>();
var prop = FixedProperties.GetGlobalProperties();
foreach (var t in Statements)
{
s.AddRange(G(t, prop));
}
return(s);
}
private IEnumerable <Proj> G(Statement s, FixedProperties prop)
{
if (s is Stmt_DEF) //这个很特殊
{
var ss = s as Stmt_DEF;
List <Proj> ps = new List <Proj>();
foreach (var t in ss.Statements)
{
ps.AddRange(G(t, prop));
}
return(ps);
}
else if (s is Stmt_INSERT)
{
var ss = s as Stmt_INSERT;
FixedProperties newp = new FixedProperties(T(ss.Location) + prop.Location, T(ss.Speed) + prop.Speed);
var f = Functions.Where(d => d.Name == ss.Name);
if (f.Count() == 1)
{
return(G(f.ElementAt(0), newp));
}
if (f.Count() == 0)
{
throw new ParseException("未找到与该名称对应的DEF语句：" + s.Offset, s.Offset);
}
throw new ParseException("与该名称对应的DEF语句出现多次：" + s.Offset, s.Offset);
}
else if (s is Stmt_FIXED)
{
var ss = s as Stmt_FIXED;
List <Proj> ps = new List <Proj>();
FixedProperties newp = new FixedProperties(T(ss.RelativeLocation) + prop.Location, T(ss.RelativeSpeed) + prop.Speed);
foreach (var t in ss.Statements)
{
ps.AddRange(G(t, newp));
}
return(ps);
}
else if (s is Stmt_MACRO)
{
var ss = s as Stmt_MACRO;
string name = ss.Name;
Macros[name] = V(ss.Value);
return(new Proj[] { });
}
else if (s is Stmt_POINT)
{
var ss = s as Stmt_POINT;
return(new Proj[] { new Proj()
{
ProjType = (int)V(ss.Type),
Location = prop.Location + T(ss.Location),
Speed = prop.Speed + T(ss.Speed)
} });
}
else if (s is Stmt_RECT)
{
var ss = s as Stmt_RECT;
List <Proj> ps = new List <Proj>();
var type = (int)V(ss.Type);
var unit = T(ss.Unit);
var location = T(ss.Location) + prop.Location;
var size = TI(ss.Size);
var speed = T(ss.Speed) + prop.Speed;
for (int i = 0; i < size.X; i++)
{
Proj p1 = new Proj();
p1.ProjType = type;
p1.Location = new MPointF(i * unit.X, 0) + location;
p1.Speed = speed;
ps.Add(p1);
Proj p2 = new Proj();
p2.ProjType = type;
p2.Location = new MPointF(i * unit.X, (size.Y - 1) * unit.Y) + location;
p2.Speed = speed;
ps.Add(p2);
}
for (int j = 0; j < size.Y; j++)
{
Proj p1 = new Proj();
p1.ProjType = type;
p1.Location = new MPointF(0, j * unit.Y) + location;
p1.Speed = speed;
ps.Add(p1);
Proj p2 = new Proj();
p2.ProjType = type;
p2.Location = new MPointF((size.X - 1) * unit.X, j * unit.Y) + location;
p2.Speed = speed;
ps.Add(p2);
}
return(ps);
}
else if (s is Stmt_RECT_FILLED)
{
var ss = s as Stmt_RECT_FILLED;
List <Proj> ps = new List <Proj>();
var type = (int)V(ss.Type);
var unit = T(ss.Unit);
var location = T(ss.Location) + prop.Location;
var size = TI(ss.Size);
var speed = T(ss.Speed) + prop.Speed;
for (int i = 0; i < size.X; i++)
{
for (int j = 0; j < size.Y; j++)
{
Proj p = new Proj();
p.ProjType = type;
p.Location = new MPointF(i * unit.X, j * unit.Y) + location;
p.Speed = speed;
ps.Add(p);
}
}
return(ps);
}
throw new ParseException("未知的句子类型：" + s.Offset, s.Offset);
}