merge upstream

leenkx/blender/lnx/exporter.py

@@ -2843,6 +2843,18 @@ class LeenkxExporter:
             body_params['linearDeactivationThreshold'] = deact_lv
             body_params['angularDeactivationThrshold'] = deact_av
             body_params['deactivationTime'] = deact_time
+            # New velocity limit properties
+            body_params['linearVelocityMin'] = bobject.lnx_rb_linear_velocity_min
+            body_params['linearVelocityMax'] = bobject.lnx_rb_linear_velocity_max
+            body_params['angularVelocityMin'] = bobject.lnx_rb_angular_velocity_min
+            body_params['angularVelocityMax'] = bobject.lnx_rb_angular_velocity_max
+            # New lock properties
+            body_params['lockTranslationX'] = bobject.lnx_rb_lock_translation_x
+            body_params['lockTranslationY'] = bobject.lnx_rb_lock_translation_y
+            body_params['lockTranslationZ'] = bobject.lnx_rb_lock_translation_z
+            body_params['lockRotationX'] = bobject.lnx_rb_lock_rotation_x
+            body_params['lockRotationY'] = bobject.lnx_rb_lock_rotation_y
+            body_params['lockRotationZ'] = bobject.lnx_rb_lock_rotation_z
             body_flags = {}
             body_flags['animated'] = rb.kinematic
             body_flags['trigger'] = bobject.lnx_rb_trigger

leenkx/blender/lnx/handlers.py

@@ -2,7 +2,10 @@ import importlib
 import os
 import queue
 import sys
+import threading
+import time
 import types
+from typing import Dict, Tuple, Callable, Set
 
 import bpy
 from bpy.app.handlers import persistent
@@ -30,6 +33,10 @@ if lnx.is_reload(__name__):
 else:
     lnx.enable_reload(__name__)
 
+# Module-level storage for active threads (eliminates re-queuing overhead)
+_active_threads: Dict[threading.Thread, Callable] = {}
+_last_poll_time = 0.0
+_consecutive_empty_polls = 0
 
 @persistent
 def on_depsgraph_update_post(self):
@@ -135,35 +142,113 @@ def always() -> float:
 
 
 def poll_threads() -> float:
-    """Polls the thread callback queue and if a thread has finished, it
-    is joined with the main thread and the corresponding callback is
-    executed in the main thread.
     """
+    Improved thread polling with:
+    - No re-queuing overhead
+    - Batch processing of completed threads
+    - Adaptive timing based on activity
+    - Better memory management
+    - Simplified logic flow
+    """
+    global _last_poll_time, _consecutive_empty_polls
+    current_time = time.time()
+    
+    # Process all new threads from queue at once (batch processing)
+    new_threads_added = 0
     try:
-        thread, callback = make.thread_callback_queue.get(block=False)
+        while True:
+            thread, callback = make.thread_callback_queue.get(block=False)
+            _active_threads[thread] = callback
+            new_threads_added += 1
     except queue.Empty:
+        pass
+    
+    # Early return if no active threads
+    if not _active_threads:
+        _consecutive_empty_polls += 1
+        # Adaptive timing: longer intervals when consistently empty
+        if _consecutive_empty_polls > 10:
+            return 0.5  # Back off when no activity
         return 0.25
-    if thread.is_alive():
-        try:
-            make.thread_callback_queue.put((thread, callback), block=False)
-        except queue.Full:
-            return 0.5
-        return 0.1 
+    
+    # Reset empty poll counter when we have active threads
+    _consecutive_empty_polls = 0
+    
+    # Find completed threads (single pass, no re-queuing)
+    completed_threads = []
+    for thread in list(_active_threads.keys()):
+        if not thread.is_alive():
+            completed_threads.append(thread)
+    
+    # Batch process all completed threads
+    if completed_threads:
+        _process_completed_threads(completed_threads)
+    
+    # Adaptive timing based on activity level
+    active_count = len(_active_threads)
+    if active_count == 0:
+        return 0.25
+    elif active_count <= 3:
+        return 0.05  # Medium frequency for low activity
     else:
+        return 0.01  # High frequency for high activity
+
+def _process_completed_threads(completed_threads: list) -> None:
+    """Process a batch of completed threads with robust error handling."""
+    for thread in completed_threads:
+        callback = _active_threads.pop(thread)  # Remove from tracking
+        
         try:
-            thread.join()
+            thread.join()  # Should be instant since thread is dead
             callback()
         except Exception as e:
-            # If there is an exception, we can no longer return the time to
-            # the next call to this polling function, so to keep it running
-            # we re-register it and then raise the original exception.
-            try:
-                bpy.app.timers.unregister(poll_threads)
-            except ValueError:
-                pass
-            bpy.app.timers.register(poll_threads, first_interval=0.01, persistent=True)
-        # Quickly check if another thread has finished
-        return 0.01
+            # Robust error recovery
+            _handle_callback_error(e)
+            continue  # Continue processing other threads
+        
+        # Explicit cleanup for better memory management
+        del thread, callback
+
+def _handle_callback_error(exception: Exception) -> None:
+    """Centralized error handling with better recovery."""
+    try:
+        # Try to unregister existing timer
+        bpy.app.timers.unregister(poll_threads)
+    except ValueError:
+        pass  # Timer wasn't registered, that's fine
+    
+    # Re-register timer with slightly longer interval for stability
+    bpy.app.timers.register(poll_threads, first_interval=0.1, persistent=True)
+    
+    # Re-raise the original exception after ensuring timer continuity
+    raise exception
+
+def cleanup_polling_system() -> None:
+    """Optional cleanup function for proper shutdown."""
+    global _active_threads, _consecutive_empty_polls
+    
+    # Wait for remaining threads to complete (with timeout)
+    for thread in list(_active_threads.keys()):
+        if thread.is_alive():
+            thread.join(timeout=1.0)  # 1 second timeout
+    
+    # Clear tracking structures
+    _active_threads.clear()
+    _consecutive_empty_polls = 0
+    
+    # Unregister timer
+    try:
+        bpy.app.timers.unregister(poll_threads)
+    except ValueError:
+        pass
+
+def get_polling_stats() -> dict:
+    """Get statistics about the polling system for monitoring."""
+    return {
+        'active_threads': len(_active_threads),
+        'consecutive_empty_polls': _consecutive_empty_polls,
+        'thread_ids': [t.ident for t in _active_threads.keys()]
+    }
 
 
 loaded_py_libraries: dict[str, types.ModuleType] = {}

leenkx/blender/lnx/logicnode/input/LN_mouse_look.py

@@ -2,100 +2,158 @@ from lnx.logicnode.lnx_nodes import *
 
 
 class MouseLookNode(LnxLogicTreeNode):
-    """Controls object rotation based on mouse movement for FPS-style camera control.
+    """MouseLookNode - Blender UI interface for FPS-style mouse look camera controller
+    
+    This class defines the Blender node interface for the MouseLookNode logic node.
+    It creates the visual node that appears in Blender's logic tree editor and
+    defines all the properties that configure the mouse look behavior.
+    
+    The node provides controls for:
+    - Axis orientation configuration
+    - Mouse cursor behavior
+    - Movement inversion options
+    - Rotation limiting/capping
+    - Head rotation space behavior
     
     Features:
-    - Sub-pixel interpolation (always enabled) for optimal precision and smooth low-sensitivity movement
-    - Resolution-adaptive scaling for consistent feel across different screen resolutions
+    - Built-in resolution-adaptive scaling for consistent feel across different screen resolutions
+    - Automatic physics synchronization for rigid bodies
+    - Support for both single-object and dual-object (body/head) setups
     """
-    bl_idname = 'LNMouseLookNode'
-    bl_label = 'Mouse Look'
-    lnx_section = 'mouse'
-    lnx_version = 1
+    
+    # Blender node identification
+    bl_idname = 'LNMouseLookNode'           # Unique identifier for Blender's node system
+    bl_label = 'Mouse Look'                 # Display name in node menu and header
+    lnx_section = 'mouse'                   # Category section in node add menu
+    lnx_version = 1                         # Node version for compatibility tracking
 
-    # Front axis property
+    # Property 0: Front Axis Configuration
+    # Determines which 3D axis represents the "forward" direction of the character/camera
+    # This affects how horizontal and vertical rotations are applied to the objects
     property0: HaxeEnumProperty(
         'property0',
-        items=[('X', 'X Axis', 'X Axis as front'),
-               ('Y', 'Y Axis', 'Y Axis as front'),
-               ('Z', 'Z Axis', 'Z Axis as front')],
-        name='Front', default='Y')
+        items=[('X', 'X Axis', 'X Axis as front'),     # X-forward (side-scrolling, specific orientations)
+               ('Y', 'Y Axis', 'Y Axis as front'),     # Y-forward (most common for 3D games)
+               ('Z', 'Z Axis', 'Z Axis as front')],    # Z-forward (top-down, specific orientations)
+        name='Front', 
+        default='Y')    # Y-axis is default as it's most common in 3D game development
     
-    # Hide Locked property
+    # Property 1: Automatic Mouse Cursor Management
+    # When enabled, automatically centers and locks the mouse cursor when mouse input starts
+    # This is essential for FPS games to prevent cursor from leaving game window
     property1: HaxeBoolProperty(
         'property1',
         name='Hide Locked',
-        description='Automatically center and lock the mouse cursor',
-        default=True)
+        description='Automatically center and lock the mouse cursor when mouse input begins',
+        default=True)   # Enabled by default for typical FPS behavior
     
-    # Invert X property
+    # Property 2: Horizontal Movement Inversion
+    # Allows users to invert horizontal mouse movement (left becomes right, right becomes left)
+    # Some players prefer inverted controls for consistency with flight simulators
     property2: HaxeBoolProperty(
         'property2',
         name='Invert X',
-        description='Invert horizontal mouse movement',
-        default=False)
+        description='Invert horizontal mouse movement - moving mouse right turns character left',
+        default=False)  # Most players expect non-inverted horizontal movement
     
-    # Invert Y property  
+    # Property 3: Vertical Movement Inversion
+    # Allows users to invert vertical mouse movement (up becomes down, down becomes up)
+    # More commonly used than horizontal inversion, especially by flight sim players
     property3: HaxeBoolProperty(
         'property3',
         name='Invert Y',
-        description='Invert vertical mouse movement',
-        default=False)
+        description='Invert vertical mouse movement - moving mouse up looks down',
+        default=False)  # Most players expect non-inverted vertical movement
     
-    # Cap Left/Right property
+    # Property 4: Horizontal Rotation Limiting
+    # Prevents the character from rotating beyond specified horizontal limits
+    # Useful for fixed-perspective games or when character shouldn't turn completely around
     property4: HaxeBoolProperty(
         'property4',
         name='Cap Left / Right',
-        description='Limit horizontal rotation',
-        default=False)
+        description='Limit horizontal rotation to prevent full 360-degree turns',
+        default=False)  # Disabled by default - most FPS games allow full horizontal rotation
     
-    # Cap Up/Down property
+    # Property 5: Vertical Rotation Limiting
+    # Prevents looking too far up or down, simulating human neck movement limitations
+    # Essential for realistic FPS games to prevent disorienting over-rotation
     property5: HaxeBoolProperty(
         'property5',
         name='Cap Up / Down',
-        description='Limit vertical rotation',
-        default=True)
-
-    # Strategy toggles
+        description='Limit vertical rotation to simulate natural neck movement (±90 degrees)',
+        default=True)   # Enabled by default for realistic FPS behavior
+    
+    # Property 6: Head Rotation Space Mode
+    # Controls whether head rotation uses local or world space coordinates
+    # Critical for preventing rotation issues when head object is child of body object
     property6: HaxeBoolProperty(
         'property6',
-        name='Resolution Adaptive',
-        description='Scale sensitivity based on screen resolution',
-        default=False)
+        name='Head Local Space',
+        description='Use local space for head rotation - enable when Head is child of Body to avoid gimbal lock',
+        default=False)  # Disabled by default, enable when using parent-child object relationships
     
 
-    
-
-
     def lnx_init(self, context):
+        """Initialize the node's input and output sockets
+        
+        This method is called when the node is first created in Blender.
+        It defines all the connection points (sockets) that other nodes can connect to.
+        
+        Input Sockets:
+        - Action In: Execution flow input (when this node should run)
+        - Body: The main character/player object that rotates horizontally
+        - Head: Optional camera/head object that rotates vertically (can be child of Body)
+        - Sensitivity: Mouse sensitivity multiplier (0.5 = half sensitivity, 2.0 = double sensitivity)
+        - Smoothing: Movement smoothing factor (0.0 = no smoothing, higher = more smoothing)
+        
+        Output Sockets:
+        - Action Out: Execution flow output (continues to next node after processing)
+        """
+        
+        # Execution flow input - connects from previous logic node
         self.add_input('LnxNodeSocketAction', 'In')
-        self.add_input('LnxNodeSocketObject', 'Body')
-        self.add_input('LnxNodeSocketObject', 'Head')
-        self.add_input('LnxFloatSocket', 'Sensitivity', default_value=0.5)
-        self.add_input('LnxFloatSocket', 'Smoothing', default_value=0.0)
-
+        
+        # Object inputs - require 3D objects from the scene
+        self.add_input('LnxNodeSocketObject', 'Body')      # Main character object (required)
+        self.add_input('LnxNodeSocketObject', 'Head')      # Camera/head object (optional)
+        
+        # Numeric inputs with sensible defaults
+        self.add_input('LnxFloatSocket', 'Sensitivity', default_value=0.5)  # Medium sensitivity
+        self.add_input('LnxFloatSocket', 'Smoothing', default_value=0.0)    # No smoothing by default
+        
+        # Execution flow output - connects to next logic node
         self.add_output('LnxNodeSocketAction', 'Out')
 
     def draw_buttons(self, context, layout):
-        layout.prop(self, 'property0', text='Front')
-        layout.prop(self, 'property1', text='Hide Locked')
+        """Draw the node's user interface in Blender's logic tree editor
         
-        # Invert XY section
-        col = layout.column(align=True)
-        col.label(text="Invert XY:")
-        row = col.row(align=True)
-        row.prop(self, 'property2', text='X', toggle=True)
-        row.prop(self, 'property3', text='Y', toggle=True)
+        This method creates the visual controls that appear on the node in Blender.
+        It organizes properties into logical groups for better usability.
         
-        # Cap rotations section
-        col = layout.column(align=True)
-        col.prop(self, 'property4', text='Cap Left / Right')
-        col.prop(self, 'property5', text='Cap Up / Down')
+        Args:
+            context: Blender context (current scene, selected objects, etc.)
+            layout: UI layout object for arranging interface elements
+        """
         
-        # Separator
-        layout.separator()
+        # Basic configuration section
+        layout.prop(self, 'property0', text='Front')       # Front axis dropdown
+        layout.prop(self, 'property1', text='Hide Locked') # Mouse locking checkbox
         
-        # Enhancement strategies section
-        col = layout.column(align=True)
-        col.label(text="Enhancement Strategies:")
-        col.prop(self, 'property6', text='Resolution Adaptive') 
+        # Movement inversion controls section
+        # Group X and Y inversion together for logical organization
+        col = layout.column(align=True)                     # Create aligned column
+        col.label(text="Invert XY:")                        # Section header
+        row = col.row(align=True)                           # Create horizontal row within column
+        row.prop(self, 'property2', text='X', toggle=True)  # X inversion toggle button
+        row.prop(self, 'property3', text='Y', toggle=True)  # Y inversion toggle button
+        
+        # Rotation limiting controls section
+        # Group rotation caps together since they're related functionality
+        col = layout.column(align=True)                     # Create new aligned column
+        col.prop(self, 'property4', text='Cap Left / Right') # Horizontal capping checkbox
+        col.prop(self, 'property5', text='Cap Up / Down')    # Vertical capping checkbox
+        
+        # Advanced head behavior section
+        # Separate advanced option that affects technical behavior
+        col = layout.column(align=True)                     # Create new aligned column
+        col.prop(self, 'property6', text='Head Local Space') # Head rotation space checkbox 

leenkx/blender/lnx/logicnode/logic/LN_once.py

@@ -0,0 +1,15 @@
+from lnx.logicnode.lnx_nodes import *
+import bpy
+
+class OnceNode(LnxLogicTreeNode):
+    bl_idname = 'LNOnceNode'
+    bl_label = 'Once'
+    lnx_version = 1
+
+    def lnx_init(self, context):
+        self.add_input('LnxNodeSocketAction', 'Run Once')
+        self.add_input('LnxNodeSocketAction', 'Reset')
+
+        self.add_output('LnxNodeSocketAction', 'Out')
+
+  

leenkx/blender/lnx/logicnode/object/LN_set_object_delayed_location.py

@@ -0,0 +1,28 @@
+from lnx.logicnode.lnx_nodes import *
+import bpy
+from bpy.props import BoolProperty
+
+class LNSetObjectDelayedLocationNode(LnxLogicTreeNode):
+    bl_idname = 'LNSetObjectDelayedLocationNode'
+    bl_label = 'Set Object Delayed Location'
+    lnx_section = 'props'
+    lnx_version = 1
+
+    use_local_space: BoolProperty(
+        name="Use Local Space",
+        description="Move follower in local space instead of world space",
+        default=False
+    )
+
+    def lnx_init(self, context):
+        self.inputs.new('LnxNodeSocketAction', 'In')
+        self.inputs.new('LnxNodeSocketObject', 'Source Object')
+        self.inputs.new('LnxNodeSocketObject', 'Target Object')
+        self.inputs.new('LnxFloatSocket', 'Delay')  
+        self.outputs.new('LnxNodeSocketAction', 'Out')
+
+    def draw_buttons(self, context, layout):
+        layout.prop(self, 'use_local_space')
+
+    def draw_label(self):
+        return "Set Object Delayed Location"

leenkx/blender/lnx/props.py

@@ -369,6 +369,26 @@ def init_properties():
             default=(True, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False, False),
             size=20,
             subtype='LAYER')
+    
+    # Linear velocity limits
+    bpy.types.Object.lnx_rb_linear_velocity_min = FloatProperty(name="Linear Velocity Min", description="Minimum linear velocity", default=0.0, min=0.0)
+    bpy.types.Object.lnx_rb_linear_velocity_max = FloatProperty(name="Linear Velocity Max", description="Maximum linear velocity", default=0.0, min=0.0)
+    
+    # Angular velocity limits
+    bpy.types.Object.lnx_rb_angular_velocity_min = FloatProperty(name="Angular Velocity Min", description="Minimum angular velocity", default=0.0, min=0.0)
+    bpy.types.Object.lnx_rb_angular_velocity_max = FloatProperty(name="Angular Velocity Max", description="Maximum angular velocity", default=0.0, min=0.0)
+    
+    
+    # Lock translation axes
+    bpy.types.Object.lnx_rb_lock_translation_x = BoolProperty(name="Lock Translation X", description="Lock movement along X axis", default=False)
+    bpy.types.Object.lnx_rb_lock_translation_y = BoolProperty(name="Lock Translation Y", description="Lock movement along Y axis", default=False)
+    bpy.types.Object.lnx_rb_lock_translation_z = BoolProperty(name="Lock Translation Z", description="Lock movement along Z axis", default=False)
+    
+    # Lock rotation axes
+    bpy.types.Object.lnx_rb_lock_rotation_x = BoolProperty(name="Lock Rotation X", description="Lock rotation around X axis", default=False)
+    bpy.types.Object.lnx_rb_lock_rotation_y = BoolProperty(name="Lock Rotation Y", description="Lock rotation around Y axis", default=False)
+    bpy.types.Object.lnx_rb_lock_rotation_z = BoolProperty(name="Lock Rotation Z", description="Lock rotation around Z axis", default=False)
+    
     bpy.types.Object.lnx_relative_physics_constraint = BoolProperty(name="Relative Physics Constraint", description="Add physics constraint relative to the parent object or collection when spawned", default=False)
     bpy.types.Object.lnx_animation_enabled = BoolProperty(name="Animation", description="Enable skinning & timeline animation", default=True)
     bpy.types.Object.lnx_tilesheet = StringProperty(name="Tilesheet", description="Set tilesheet animation", default='')
@@ -594,7 +614,7 @@ def update_leenkx_world():
     if bpy.data.filepath != '' and (file_version < sdk_version or wrd.lnx_commit != lnx_commit):
         # This allows for seamless migration from earlier versions of Leenkx
         for rp in wrd.lnx_rplist:  # TODO: deprecated
-            if rp.rp_gi != 'Off':
+            if hasattr(rp, 'rp_gi') and rp.rp_gi != 'Off':
                 rp.rp_gi = 'Off'
                 rp.rp_voxels = rp.rp_gi
 

leenkx/blender/lnx/props_ui.py

@@ -240,6 +240,36 @@ class LNX_PT_PhysicsPropsPanel(bpy.types.Panel):
             layout.prop(obj, 'lnx_rb_linear_factor')
             layout.prop(obj, 'lnx_rb_angular_factor')
             layout.prop(obj, 'lnx_rb_angular_friction')
+            
+            # Linear Velocity section
+            layout.separator()
+            layout.label(text="Linear Velocity:")
+            layout.prop(obj, 'lnx_rb_linear_velocity_min')
+            layout.prop(obj, 'lnx_rb_linear_velocity_max')
+            
+            # Angular Velocity section
+            layout.separator()
+            layout.label(text="Angular Velocity:")
+            layout.prop(obj, 'lnx_rb_angular_velocity_min')
+            layout.prop(obj, 'lnx_rb_angular_velocity_max')
+            
+            
+            # Lock Translation section
+            layout.separator()
+            layout.label(text="Lock Translation:")
+            row = layout.row(align=True)
+            row.prop(obj, 'lnx_rb_lock_translation_x', text="X")
+            row.prop(obj, 'lnx_rb_lock_translation_y', text="Y")
+            row.prop(obj, 'lnx_rb_lock_translation_z', text="Z")
+            
+            # Lock Rotation section
+            layout.separator()
+            layout.label(text="Lock Rotation:")
+            row = layout.row(align=True)
+            row.prop(obj, 'lnx_rb_lock_rotation_x', text="X")
+            row.prop(obj, 'lnx_rb_lock_rotation_y', text="Y")
+            row.prop(obj, 'lnx_rb_lock_rotation_z', text="Z")
+            
             layout.prop(obj, 'lnx_rb_trigger')
             layout.prop(obj, 'lnx_rb_ccd')
             layout.prop(obj, 'lnx_rb_interpolate')