fix: avoids crashes in case of input when room is run directly and interrupted; may look at updating room manager in the future

addons/escoria-core/game/core-scripts/esc/commands/walk.gd

@@ -72,4 +72,5 @@ func run(command_params: Array) -> int:
 
 # Function called when the command is interrupted.
 func interrupt():
-	walking_object_node.stop_walking_now()
+	if walking_object_node != null:
+		walking_object_node.stop_walking_now()

addons/escoria-core/game/core-scripts/esc/commands/walk_block.gd

@@ -73,5 +73,5 @@ func run(command_params: Array) -> int:
 
 # Function called when the command is interrupted.
 func interrupt():
-	if not walking_object_node is ESCPlayer:
+	if walking_object_node != null and not walking_object_node is ESCPlayer:
 		walking_object_node.stop_walking_now()

addons/escoria-core/game/core-scripts/esc/commands/walk_to_pos.gd

@@ -62,5 +62,5 @@ func run(command_params: Array) -> int:
 
 # Function called when the command is interrupted.
 func interrupt():
-	if not walking_object_node is ESCPlayer:
+	if walking_object_node != null and not walking_object_node is ESCPlayer:
 		walking_object_node.stop_walking_now()

addons/escoria-core/game/core-scripts/esc/commands/walk_to_pos_block.gd

@@ -66,5 +66,5 @@ func run(command_params: Array) -> int:
 
 # Function called when the command is interrupted.
 func interrupt():
-	if not walking_object_node is ESCPlayer:
+	if walking_object_node != null and not walking_object_node is ESCPlayer:
 		walking_object_node.stop_walking_now()