Implement the runtime

Just something basic that can go through the node tree

core/runtime.py

@@ -0,0 +1,52 @@
+import bpy
+
+from datetime import datetime
+
+from ..ui.nodes.nodetree import MotorNodeTree
+from ..ui.nodes.onstart import MotorOnStartNode
+from ..ui.nodes.console import MotorConsoleNode
+from ..ui.nodes.sockets import MotorActionSocket
+
+
+def run_scene():
+    """Interpret the entire node tree and run the scene"""
+    on_start_nodes = []
+
+    for node_group in bpy.data.node_groups:
+        if node_group.bl_idname == MotorNodeTree.bl_idname:
+            for node in node_group.nodes:
+                if node.bl_idname == MotorOnStartNode.bl_idname:
+                    on_start_nodes.append(node)
+
+    for start_node in on_start_nodes:
+        for output in start_node.outputs:
+            if output.enabled and output.is_output and output.is_linked:
+                for link in output.links:
+                    if link.to_node.bl_idname == MotorConsoleNode.bl_idname:
+                        to_node = link.to_node
+                        message = ""
+                        if output.bl_idname == MotorActionSocket.bl_idname:
+                            message = f"'{start_node.bl_label}' output '{output.bl_label}'"
+                        show_time_prop = to_node.get("show_time_prop")
+                        type_prop = to_node.get("type_prop")
+
+                        if type_prop == 3:
+                            message = "ERROR: " + message
+                        elif type_prop == 2:
+                            message = "WARNING: " + message
+                        else:
+                            message = "INFO: " + message
+
+                        if show_time_prop:
+                            now = datetime.now()
+                            dt_string = now.strftime("[%d/%m/%Y %H:%M:%S] ")
+
+                            message = dt_string + message
+
+                        print(message)
+
+    return True
+
+
+def stop_scene():
+    print("Scene stopped")

ui/view.py

@@ -3,8 +3,11 @@
 from bpy.types import Operator
 from bpy.utils import register_classes_factory
 
+from ..core.runtime import run_scene, stop_scene
+
 
 class MotorRunOperator(Operator):
+    """Operator that enters interactive mode and runs the scene"""
     bl_idname = "motor.run"
     bl_label = "Enter interactive mode"
     bl_description = "Enter interactive mode and disable UI"
@@ -22,6 +25,7 @@ def invoke(self, context, event):
 
 
 def switch_interactive_mode(enabled):
+    """Enter or exit interactive mode. Start or stop running the scene"""
     area = bpy.context.area
     window = bpy.context.window
     if area.type == 'VIEW_3D':
@@ -63,6 +67,11 @@ def switch_interactive_mode(enabled):
     else:
         bpy.ops.view3d.view_lock_clear()
 
+    if enabled:
+        run_scene()
+    else:
+        stop_scene()
+
 
 classes = (
     MotorRunOperator,