Add page types.

This adds a page type distinction. It will primarily be geared toward
things like GUIs and avatar animations. However, for now, we can abuse
it to allow externally created pages, such as those created by PRPShop
hacking (for particles) or from 3dsMax (avatar animations, GUIs, etc.)
to coexist more easily with our Korman-generated .age files.

korman/exporter/convert.py

@@ -156,11 +156,15 @@ class Exporter:
         # Grab a naive listing of enabled pages
         age = scene.world.plasma_age
         pages_enabled = frozenset((page.name for page in age.pages if page.enabled and self._op.version in page.version))
+        external_pages = frozenset((page.name for page in age.pages if page.page_type == "external"))
+        pages_enabled -= external_pages
         all_pages = frozenset((page.name for page in age.pages))
 
         # Because we can have an unnamed or a named default page, we need to see if that is enabled...
         for page in age.pages:
             if page.seq_suffix == 0:
+                if page.page_type != "room":
+                    raise explosions.ExportError(f"Default page '{page.name}' must be a Room page!")
                 default_enabled = page.enabled
                 default_inited = True
                 break
@@ -185,7 +189,7 @@ class Exporter:
 
                 if (default_enabled and not page) or (page in pages_enabled):
                     self._objects.append(obj)
-                elif page not in all_pages:
+                elif page not in all_pages or page in external_pages:
                     error.add(page, obj.name)
             inc_progress()
         error.raise_if_error()
@@ -217,7 +221,8 @@ class Exporter:
         ver = self._op.version
         for page in age_info.pages:
             if page.enabled and ver in page.version:
-                mgr.create_page(age_name, page.name, page.seq_suffix)
+                external = page.page_type == "external"
+                mgr.create_page(age_name, page.name, page.seq_suffix, external=external)
         mgr.create_builtins(age_name, age_info.use_texture_page)
 
     def _export_actor(self, so, bo):

korman/exporter/explosions.py

@@ -76,7 +76,7 @@ class UndefinedPageError(ExportError):
     mistakes = {}
 
     def __init__(self):
-        super(ExportError, self).__init__("You have objects in pages that do not exist!")
+        super(ExportError, self).__init__("You have objects in invalid pages!")
 
     def add(self, page, obj):
         if page not in self.mistakes:

korman/exporter/manager.py

@@ -150,7 +150,7 @@ class ExportManager:
         #          present and valid. They do not have to have any contents. See AvatarCustomization.
         # BuiltIn.prp
         want_pysdl = bpy.context.scene.world.plasma_age.age_sdl
-        builtin = self.create_page(age, "BuiltIn", -2, True)
+        builtin = self.create_page(age, "BuiltIn", -2, builtin=True)
         if want_pysdl:
             self._pack_agesdl_hook(age)
             sdl = self.add_object(plSceneObject, name="AgeSDLHook", loc=builtin)
@@ -160,21 +160,24 @@ class ExportManager:
         # Textures.prp
         # FIXME: unconditional creation will overwrite any existing textures PRP. This should
         # be addressed by a successful implementation of #145.
-        self.create_page(age, "Textures", -1, True)
+        self.create_page(age, "Textures", -1, builtin=True)
 
-    def create_page(self, age, name, id, builtin=False):
+    def create_page(self, age, name, id, *, builtin=False, external=False):
         location = plLocation(self.mgr.getVer())
         location.prefix = bpy.context.scene.world.plasma_age.seq_prefix
         if builtin:
             location.flags |= plLocation.kBuiltIn
         location.page = id
+        if not external:
             self._pages[name] = location
 
         # If the page ID is 0, this is the default page... Any page with an empty string name
         # is the default, so bookmark it!
         if id == 0:
+            assert not external, "The default page cannot be external!"
             self._pages[""] = location
 
+        if not external:
             info = plPageInfo()
             info.age = age
             info.page = name
@@ -183,14 +186,18 @@ class ExportManager:
 
         if not builtin:
             self._age_info.addPage((name, id, 0))
+            if not external:
                 if self.getVer() <= pvPots:
-                node = plSceneNode("{}_District_{}".format(age, name))
+                    node = plSceneNode(f"{age}_District_{name}")
                 else:
-                node = plSceneNode("{}_{}".format(age, name))
-            self._nodes[location] = node
+                    node = plSceneNode(f"{age}_{name}")
                 self.mgr.AddObject(location, node)
             else:
-            self._nodes[location] = None
+                node = None
+        else:
+            node = None
+
+        self._nodes[location] = node
         return location
 
     @property

korman/properties/prop_object.py

@@ -33,6 +33,8 @@ class PlasmaObject(bpy.types.PropertyGroup):
         for page in age.pages:
             if page.seq_suffix > num_layers:
                 continue
+            if page.page_type == "external":
+                continue
             if o.layers[page.seq_suffix - 1]:
                 o.plasma_object.page = page.name
                 break

korman/properties/prop_world.py

@@ -136,6 +136,14 @@ class PlasmaPage(bpy.types.PropertyGroup):
                            items=game_versions,
                            options={"ENUM_FLAG"},
                            default=set(list(zip(*game_versions))[0]))
+    page_type = EnumProperty(name="Page Type",
+                             description="Type of data this page contains",
+                             items=[
+                                ("room", "Room", "A standard Plasma Room containing scene objects"),
+                                ("external", "External", "A page generated by an external process. Korman will not write to this page, ever."),
+                             ],
+                             default="room",
+                             options=set())
 
     # Implementation details...
     last_name = StringProperty(description="INTERNAL: Cached page name",

korman/ui/ui_object.py

@@ -53,9 +53,17 @@ class PlasmaObjectPanel(ObjectButtonsPanel, bpy.types.Panel):
         pl_age = context.scene.world.plasma_age
         layout.active = pl_obj.enabled
 
+        # It is an error to put objects in the wrong types of pages/
+        active_page = next((i for i in pl_age.pages if i.name == pl_obj.page), None)
+        is_external_page = active_page.page_type == "external" if active_page else False
+
         # Which page does this object go in?
         # If left blank, the exporter puts it in page 0 -- "Default"
+        layout.alert = is_external_page
         layout.prop_search(pl_obj, "page", pl_age, "pages", icon="BOOKMARKS")
+        layout.alert = False
+        if is_external_page:
+            layout.label("Objects cannot be exported to External pages.", icon="ERROR")
 
 
 class PlasmaNetPanel(ObjectButtonsPanel, bpy.types.Panel):

korman/ui/ui_world.py

@@ -207,8 +207,8 @@ class PlasmaAgePanel(AgeButtonsPanel, bpy.types.Panel):
 
             layout.separator()
             box = layout.box()
-            split = box.split()
 
+            split = box.split()
             col = split.column()
             col.label("Page Flags:")
             col.prop(active_page, "auto_load")
@@ -218,7 +218,23 @@ class PlasmaAgePanel(AgeButtonsPanel, bpy.types.Panel):
             col.label("Page Info:")
             col.prop(active_page, "name", text="")
             col.prop(active_page, "seq_suffix")
-            col.prop_menu_enum(active_page, "version")
+
+            split = box.split()
+            col = split.column()
+            col.label("Export For:")
+            col.prop(active_page, "version")
+
+            col = split.column()
+            default_page = active_page.seq_suffix == 0
+            invalid_page_type = default_page and active_page.page_type != "room"
+            col.alert = invalid_page_type
+            col.label("Page Type:")
+            col.prop(active_page, "page_type", text="")
+            col.alert = False
+            if default_page:
+                col.label("This is the Default Page.", icon="BOOKMARKS")
+            if invalid_page_type:
+                col.label("Page must be a Room.", icon="ERROR")
 
         # Age Names should really be legal Python 2.x identifiers for AgeSDLHooks
         legal_identifier = korlib.is_legal_python2_identifier(age.age_name)