Before I forget, add warnings on areas without children (should not break anything).

Seen too many users misunderstanding the edit rect is the shape.

2 files changed, 16 insertions, 0 deletions

diff --git a/scene/3d/collision_object.cpp b/scene/3d/collision_object.cpp
index b246fe75f4..73770a2dd2 100644
--- a/scene/3d/collision_object.cpp
+++ b/scene/3d/collision_object.cpp
@@ -365,6 +365,20 @@ bool CollisionObject::get_capture_input_on_drag() const {
 	return capture_input_on_drag;
 }
 
+String CollisionObject::get_configuration_warning() const {
+
+	String warning = Spatial::get_configuration_warning();
+
+	if (shapes.empty()) {
+		if (warning == String()) {
+			warning += "\n";
+		}
+		warning += TTR("This node has no children shapes, so it can't interact with the space.\nConsider adding CollisionShape or CollisionPolygon children nodes to define it's shape.");
+	}
+
+	return warning;
+}
+
 CollisionObject::CollisionObject() {
 
 	capture_input_on_drag = false;
diff --git a/scene/3d/collision_object.h b/scene/3d/collision_object.h
index c58e02848f..f31d65e411 100644
--- a/scene/3d/collision_object.h
+++ b/scene/3d/collision_object.h
@@ -109,6 +109,8 @@ public:
 
 	_FORCE_INLINE_ RID get_rid() const { return rid; }
 
+	virtual String get_configuration_warning() const;
+
 	CollisionObject();
 	~CollisionObject();
 };