Adds entity collisions functionalities.

addons/source-python/data/source-python/entities/bms/CBaseEntity.ini

@@ -49,6 +49,12 @@
         offset_windows = 109
         arguments = POINTER
 
+    # _ZNK11CBasePlayer25PhysicsSolidMaskForEntityEv
+    [[get_solid_mask]]
+        offset_linux = 180
+        offset_windows = 179
+        return_type = UINT
+
 
 [input]
 

addons/source-python/data/source-python/entities/csgo/CBaseEntity.ini

@@ -51,3 +51,10 @@ srv_check = False
         offset_linux = 105
         offset_windows = 104
         arguments = POINTER
+
+    # _ZNK11CBasePlayer25PhysicsSolidMaskForEntityEv
+    # https://gist.github.com/jordanbriere/679e6d09ebaa9830979b6f60e61d4b9c
+    [[get_solid_mask]]
+        offset_linux = 169
+        offset_windows = 168
+        return_type = UINT

addons/source-python/data/source-python/entities/gmod/CBaseEntity.ini

@@ -48,3 +48,9 @@
         offset_linux = 103
         offset_windows = 102
         arguments = POINTER
+
+    # _ZNK11CBasePlayer25PhysicsSolidMaskForEntityEv
+    [[get_solid_mask]]
+        offset_linux = 173
+        offset_windows = 172
+        return_type = UINT

addons/source-python/data/source-python/entities/l4d2/CBaseEntity.ini

@@ -48,3 +48,9 @@
         offset_linux = 110
         offset_windows = 109
         arguments = POINTER
+
+    # _ZNK11CBasePlayer25PhysicsSolidMaskForEntityEv
+    [[get_solid_mask]]
+        offset_linux = 178
+        offset_windows = 177
+        return_type = UINT

addons/source-python/data/source-python/entities/orangebox/CBaseEntity.ini

@@ -49,6 +49,12 @@
         offset_windows = 100
         arguments = POINTER
 
+    # _ZNK11CBasePlayer25PhysicsSolidMaskForEntityEv
+    [[get_solid_mask]]
+        offset_linux = 168
+        offset_windows = 167
+        return_type = UINT
+
 
 [input]
 

addons/source-python/docs/source-python/source/developing/module_tutorials/listeners.rst

@@ -324,6 +324,27 @@ Called when a networked entity has been spawned.
         pass
 
 
+OnEntityCollision
+-----------------
+
+Called when a non-player entity is about to collide with another entity.
+
+.. note::
+
+    This listener can be extremely noisy. Use :class:`entities.collisions.CollisionHash`,
+    :class:`entities.collisions.CollisionMap`, or :class:`entities.collisions.CollisionSet`
+    if you don't have dynamic conditions to test for.
+
+.. code-block:: python
+
+    from listeners import OnEntityCollision
+
+    @OnEntityCollision
+    def on_entity_collision(entity, other):
+        # Disable weapons/projectiles collisions with everything except players
+        return not (entity.is_weapon() and not other.is_player())
+
+
 OnLevelInit
 -----------
 
@@ -406,6 +427,29 @@ Called when the button state of a player changed.
     button or button combination has been pressed or released.
 
 
+OnPlayerCollision
+-----------------
+
+Called when a player is about to collide with an entity.
+
+.. note::
+
+    This listener can be extremely noisy. Use :class:`entities.collisions.CollisionHash`,
+    :class:`entities.collisions.CollisionMap`, or :class:`entities.collisions.CollisionSet`
+    if you don't have dynamic conditions to test for.
+
+.. code-block:: python
+
+    from listeners import OnPlayerCollision
+
+    @OnPlayerCollision
+    def on_player_collision(player, entity):
+        # Disable teammates collisions
+        if not entity.is_player():
+            return
+        return player.team_index != entity.team_index
+
+
 OnPlayerRunCommand
 --------------------
 

addons/source-python/packages/source-python/entities/collisions.py

@@ -0,0 +1,64 @@
+# ../entities/collisions.py
+
+"""Provides entity collisions functionality."""
+
+# =============================================================================
+# >> IMPORTS
+# =============================================================================
+# Source.Python Imports
+#   Core
+from core import AutoUnload
+from core import WeakAutoUnload
+
+
+# =============================================================================
+# >> FORWARD IMPORTS
+# =============================================================================
+# Source.Python Imports
+#   Entities
+from _entities._collisions import CollisionHash
+from _entities._collisions import CollisionManager
+from _entities._collisions import CollisionMap
+from _entities._collisions import CollisionMode
+from _entities._collisions import CollisionRules
+from _entities._collisions import CollisionSet
+from _entities._collisions import collision_manager
+
+
+# =============================================================================
+# >> ALL DECLARATION
+# =============================================================================
+__all__ = [
+    'CollisionHash',
+    'CollisionHook',
+    'CollisionManager',
+    'CollisionMap',
+    'CollisionMode',
+    'CollisionRules',
+    'CollisionSet',
+    'collision_manager',
+]
+
+
+# =============================================================================
+# >> INITIALIZATION
+# =============================================================================
+# Inject WeakAutoUnload into CollisionRules's hierarchy.
+if not issubclass(CollisionRules, WeakAutoUnload):
+    CollisionRules.__bases__ = (WeakAutoUnload,) + CollisionRules.__bases__
+
+
+# =============================================================================
+# >> CLASSES
+# =============================================================================
+class CollisionHook(AutoUnload):
+    """Decorator used to create collision hooks that auto unload."""
+
+    def __init__(self, callback):
+        """Registers the collision hook."""
+        self.callback = callback
+        collision_manager.register_hook(callback)
+
+    def _unload_instance(self):
+        """Unregisters the collision hook."""
+        collision_manager.unregister_hook(self.callback)

addons/source-python/packages/source-python/listeners/__init__.py

@@ -65,13 +65,15 @@
 from _listeners import on_networked_entity_spawned_listener_manager
 from _listeners import on_entity_deleted_listener_manager
 from _listeners import on_networked_entity_deleted_listener_manager
+from _listeners import on_entity_collision_listener_manager
 from _listeners import on_data_loaded_listener_manager
 from _listeners import on_combiner_pre_cache_listener_manager
 from _listeners import on_data_unloaded_listener_manager
 from _listeners import on_query_cvar_value_finished_listener_manager
 from _listeners import on_server_activate_listener_manager
 from _listeners import on_tick_listener_manager
 from _listeners import on_server_output_listener_manager
+from _listeners import on_player_collision_listener_manager
 from _listeners import on_player_run_command_listener_manager
 from _listeners import on_player_post_run_command_listener_manager
 from _listeners import on_button_state_changed_listener_manager
@@ -99,6 +101,7 @@
            'OnNetworkedEntityCreated',
            'OnEntityDeleted',
            'OnNetworkedEntityDeleted',
+           'OnEntityCollision',
            'OnEntityOutput',
            'OnEntityOutputListenerManager',
            'OnEntityPreSpawned',
@@ -110,6 +113,7 @@
            'OnLevelEnd',
            'OnNetworkidValidated',
            'OnButtonStateChanged',
+           'OnPlayerCollision',
            'OnPlayerRunCommand',
            'OnPlayerPostRunCommand',
            'OnPluginLoaded',
@@ -138,6 +142,7 @@
            'on_networked_entity_created_listener_manager',
            'on_entity_deleted_listener_manager',
            'on_networked_entity_deleted_listener_manager',
+           'on_entity_collision_listener_manager',
            'on_entity_output_listener_manager',
            'on_entity_pre_spawned_listener_manager',
            'on_networked_entity_pre_spawned_listener_manager',
@@ -156,6 +161,7 @@
            'on_tick_listener_manager',
            'on_version_update_listener_manager',
            'on_server_output_listener_manager',
+           'on_player_collision_listener_manager',
            'on_player_run_command_listener_manager',
            'on_button_state_changed_listener_manager',
            )
@@ -410,6 +416,12 @@ class OnNetworkedEntityDeleted(ListenerManagerDecorator):
     manager = on_networked_entity_deleted_listener_manager
 
 
+class OnEntityCollision(ListenerManagerDecorator):
+    """Register/unregister a OnEntityCollision listener."""
+
+    manager = on_entity_collision_listener_manager
+
+
 class OnDataLoaded(ListenerManagerDecorator):
     """Register/unregister a OnDataLoaded listener."""
 
@@ -491,6 +503,12 @@ class OnLevelEnd(ListenerManagerDecorator):
     _level_initialized = False
 
 
+class OnPlayerCollision(ListenerManagerDecorator):
+    """Register/unregister a OnPlayerCollision listener."""
+
+    manager = on_player_collision_listener_manager
+
+
 class OnPlayerRunCommand(ListenerManagerDecorator):
     """Register/unregister a run command listener."""
 

addons/source-python/packages/source-python/plugins/manager.py

@@ -11,6 +11,8 @@
 #   Configobj
 from configobj import ConfigObj
 from configobj import Section
+#   GC
+from gc import collect
 #   Importlib
 from importlib.util import find_spec
 from importlib.util import spec_from_file_location
@@ -234,6 +236,7 @@ def unload(self, plugin_name):
 
         self._remove_modules(plugin_name)
         del self[plugin_name]
+        collect()
         on_plugin_unloaded_manager.notify(plugin)
 
     def reload(self, plugin_name):

src/CMakeLists.txt

@@ -225,6 +225,7 @@ Set(SOURCEPYTHON_ENTITIES_MODULE_HEADERS
     core/modules/entities/${SOURCE_ENGINE}/entities_props_wrap.h
     core/modules/entities/${SOURCE_ENGINE}/entities_constants_wrap.h
     core/modules/entities/entities_entity.h
+    core/modules/entities/entities_collisions.h
 )
 
 Set(SOURCEPYTHON_ENTITIES_MODULE_SOURCES
@@ -241,6 +242,8 @@ Set(SOURCEPYTHON_ENTITIES_MODULE_SOURCES
     core/modules/entities/entities_props_wrap.cpp
     core/modules/entities/entities_entity.cpp
     core/modules/entities/entities_entity_wrap.cpp
+    core/modules/entities/entities_collisions.cpp
+    core/modules/entities/entities_collisions_wrap.cpp
 )
 
 # ------------------------------------------------------------------