update editor & rename 'model' property to 'src'

res/layouts/code_editor.xml

@@ -8,7 +8,8 @@
         </panel>
     </splitbox>
     <splitbox id="editorContainer" split-pos="0.8">
-        <container color="#00000080" 
+        <splitbox id="codePanel" orientation="horizontal">
+            <container color="#00000080" cursor="text"
                     onclick="document.editor.focused = true document.editor.caret = -1">
                 <container size-func="-1,30" color="#00000020">
                     <image id="lockIcon" src="gui/lock" tooltip="@Read only"
@@ -47,8 +48,9 @@
                     text-wrap='false'
                     scroll-step='50'
                 ></textbox>
-            <modelviewer size="480" model="stairs" center="0.5,0.5,0.5" cam-rotation="45,-45,0" gravity="top-right"/>
             </container>
+            <modelviewer id="modelviewer" visible="false" center="0.5,0.5,0.5" cam-rotation="45,-45,0"/>
+        </splitbox>
         <splitbox orientation="horizontal" split-pos="0.4">
             <panel id="traceback" padding="4" color="#000000A0">
             </panel>

res/layouts/code_editor.xml.lua

@@ -104,10 +104,29 @@ function unlock_access()
     )
 end
 
+local function reload_model(filename, name)
+    assets.parse_model("xml", document.editor.text, name)
+end
+
 function run_current_file()
     if not current_file.filename then
         return
     end
+
+    local info = registry.get_info(current_file.filename)
+    local script_type = info and info.type or "file"
+    local unit = info and info.unit
+
+    if script_type == "model" then
+        print(current_file.filename)
+        clear_output()
+        local _, err = pcall(reload_model, current_file.filename, unit)
+        if err then
+            document.output:paste(string.format("\n[#FF0000]%s[#FFFFFF]", err))
+        end
+        return
+    end
+
     local chunk, err = loadstring(document.editor.text, current_file.filename)
     clear_output()
     if not chunk then
@@ -119,9 +138,7 @@ function run_current_file()
         )
         return
     end
-    local info = registry.get_info(current_file.filename)
-    local script_type = info and info.type or "file"
-    local unit = info and info.unit
+
     save_current_file()
 
     local func = function()
@@ -191,6 +208,7 @@ events.on("core:open_traceback", function(traceback_b64)
     tb_list.size = srcsize
 end)
 
+--- Save the current file in the code editor if has writeable path.
 function save_current_file()
     if not current_file.mutable then
         return
@@ -202,7 +220,22 @@ function save_current_file()
     document.editor.edited = false
 end
 
+--- Open a file in the code editor.
+--- @param filename string - the path to the file to open.
+--- @param line integer - the line number to focus on (optional).
+--- @param mutable string - writeable file path (optional).
 function open_file_in_editor(filename, line, mutable)
+    debug.log("opening file " .. string.escape(filename) .. " in editor")
+
+    local ext = file.ext(filename)
+    if ext == "xml" or ext == "vcm" then
+        document.modelviewer.src = file.stem(filename)
+        document.modelviewer.visible = true
+    else
+        document.modelviewer.visible = false
+    end
+    document.codePanel:refresh()
+
     local editor = document.editor
     local source = file.read(filename):gsub('\t', '    ')
     editor.scroll = 0
@@ -225,7 +258,7 @@ end
 function on_open(mode)
     registry = require "core:internal/scripts_registry"
 
-    document.editorContainer:setInterval(200, refresh_file_title)
+    document.codePanel:setInterval(200, refresh_file_title)
 
     clear_traceback()
     clear_output()

res/layouts/console.xml

@@ -22,8 +22,7 @@
             markup="md"
         ></textbox>
     </container>
-    <iframe id="editorRoot" pos="0,30" size-func="-1,gui.get_viewport()[2]-30" 
-            src="core:code_editor">
+    <iframe id="editorRoot" pos="0,30" size-func="-1,gui.get_viewport()[2]-30">
     </iframe>
     <textbox id='prompt' 
              consumer='submit' 

res/layouts/console.xml.lua

@@ -104,8 +104,10 @@ function set_mode(mode)
 
     if mode == 'debug' then
         document.root.color = {16, 18, 20, 220}
+        document.editorRoot.src = "core:code_editor"
     else
         document.root.color = {0, 0, 0, 128}
+        document.editorRoot.src = ""
     end
 
     document.prompt.visible = show_prompt

src/graphics/ui/gui_xml.cpp

@@ -372,7 +372,7 @@ static std::shared_ptr<UINode> read_split_box(
 static std::shared_ptr<UINode> read_model_viewer(
     UiXmlReader& reader, const xml::xmlelement& element
 ) {
-    auto model = element.attr("model", "").getText();
+    auto model = element.attr("src", "").getText();
     auto viewer = std::make_shared<ModelViewer>(
         reader.getGUI(), glm::vec2(), model
     );

src/io/engine_paths.cpp

@@ -192,6 +192,9 @@ std::string EnginePaths::createWriteableDevice(const std::string& name) {
             break;
         }
     }
+    if (name == "core") {
+        folder = "res:";
+    }
     if (folder.emptyOrInvalid()) {
         throw std::runtime_error("pack not found");
     }