private bool OpTeapot()
{
PCObj mul;
PCObj res;
try
{
mul = Stack.Pop();
}
catch (InvalidOperationException)
{
throw new PCEmptyStackException();
}
if (!(mul is PCVector3))
{
Stack.Push(mul);
throw new PCTypeCheckException();
}
try
{
res = Stack.Pop();
}
catch (InvalidOperationException)
{
throw new PCEmptyStackException();
}
if (!(res is PCVector2))
{
Stack.Push(res);
throw new PCTypeCheckException();
}
int npatch = 32;
int ru = (int)((PCVector2)res).val.X;
int rv = (int)((PCVector2)res).val.Y;
int i, j, p;
PCArray lines;
lines = new PCArray();
for (p = 0; p < npatch; p++)
{
Vector3[,] r = GenPatch(p, ru, rv, ((PCVector3)mul).val);
PCArray patch = new PCArray();
for (i = 0; i <= ru; i++)
{
PCArray line = new PCArray();
for (j = 0; j <= rv; j++)
{
Vector3 v = r[i, j];
line.Add(new PCVector3(v));
}
patch.Add(line);
}
lines.Add(patch);
}
Stack.Push(lines);
lines = new PCArray();
for (p = 0; p < npatch; p++)
{
Vector3[,] r = GenPatch(p, ru, rv, ((PCVector3)mul).val);
PCArray patch = new PCArray();
for (j = 0; j <= rv; j++)
{
PCArray line = new PCArray();
for (i = 0; i <= ru; i++)
{
Vector3 v = r[i, j];
line.Add(new PCVector3(v));
}
patch.Add(line);
}
lines.Add(patch);
}
Stack.Push(lines);
PCArray vertex = new PCArray();
for (p = 0; p < npatch; p++)
{
Vector3[] vs = GenVertex(p, ru, rv, ((PCVector3)mul).val);
PCArray patch = new PCArray();
foreach (Vector3 v in vs)
{
patch.Add(new PCVector3(v));
}
vertex.Add(patch);
}
Stack.Push(vertex);
return true;
}
private bool OpLoadScene()
{
PCArray o = new PCArray();
foreach (PCSceneObjectPart part in m_shownSceneObjectPart)
{
o.Add(part);
}
Stack.Push(o);
return true;
}
private bool OpLoadSnapshot()
{
PCObj snapshot;
try
{
snapshot = Stack.Pop();
}
catch (InvalidOperationException)
{
throw new PCEmptyStackException();
}
if (!(snapshot is PCSceneSnapshot))
{
Stack.Push(snapshot);
throw new PCTypeCheckException();
}
PCArray o = new PCArray();
foreach (PCSceneSnapshot.SnapshotItem item in ((PCSceneSnapshot)snapshot).val)
{
o.Add(item.PCSceneObjectPart);
}
Stack.Push(o);
return true;
}
private bool OpBanner()
{
PCObj pt;
PCObj str;
try
{
pt = Stack.Pop();
}
catch (InvalidOperationException)
{
throw new PCEmptyStackException();
}
if (!(pt is PCVector2))
{
Stack.Push(pt);
throw new PCTypeCheckException();
}
try
{
str = Stack.Pop();
}
catch (InvalidOperationException)
{
throw new PCEmptyStackException();
}
if (!(str is PCStr))
{
Stack.Push(str);
throw new PCTypeCheckException();
}
PCArray glyphs = new PCArray();
float ptx = ((PCVector2)pt).val.X;
float pty = ((PCVector2)pt).val.Y;
float cursor = 0f;
foreach (char ch in ((PCStr)str).val)
{
PCArray glyph = new PCArray();
foreach (PCObj o in m_banner[Convert.ToInt32(ch)].val)
{
float x = ((PCVector2)o).val.X * ptx / m_banner_width;
float y = ((PCVector2)o).val.Y * pty / m_banner_height;
glyph.Add(new PCVector3(x + cursor, y, 0));
}
glyphs.Add(glyph);
cursor += ptx;
}
Stack.Push(glyphs);
return true;
}