diff options
| -rw-r--r-- | doc/classes/MeshInstance3D.xml | 7 | ||||
| -rw-r--r-- | scene/3d/mesh_instance_3d.cpp | 37 | ||||
| -rw-r--r-- | scene/3d/mesh_instance_3d.h | 3 |
3 files changed, 47 insertions, 0 deletions
diff --git a/doc/classes/MeshInstance3D.xml b/doc/classes/MeshInstance3D.xml index e1a6cf44a7..b015a21d67 100644 --- a/doc/classes/MeshInstance3D.xml +++ b/doc/classes/MeshInstance3D.xml @@ -20,6 +20,13 @@ This helper creates a [StaticBody3D] child node with a [ConvexPolygonShape3D] collision shape calculated from the mesh geometry. It's mainly used for testing. </description> </method> + <method name="create_multiple_convex_collisions"> + <return type="void"> + </return> + <description> + This helper creates a [StaticBody3D] child node with multiple [ConvexPolygonShape3D] collision shapes calculated from the mesh geometry via convex decomposition. It's mainly used for testing. + </description> + </method> <method name="create_debug_tangents"> <return type="void"> </return> diff --git a/scene/3d/mesh_instance_3d.cpp b/scene/3d/mesh_instance_3d.cpp index 7623ede0fc..99fa8f1f3e 100644 --- a/scene/3d/mesh_instance_3d.cpp +++ b/scene/3d/mesh_instance_3d.cpp @@ -271,6 +271,41 @@ void MeshInstance3D::create_convex_collision() { } } +Node *MeshInstance3D::create_multiple_convex_collisions_node() { + if (mesh.is_null()) { + return nullptr; + } + + Vector<Ref<Shape3D>> shapes = mesh->convex_decompose(); + if (!shapes.size()) { + return nullptr; + } + + StaticBody3D *static_body = memnew(StaticBody3D); + for (int i = 0; i < shapes.size(); i++) { + CollisionShape3D *cshape = memnew(CollisionShape3D); + cshape->set_shape(shapes[i]); + static_body->add_child(cshape); + } + return static_body; +} + +void MeshInstance3D::create_multiple_convex_collisions() { + StaticBody3D *static_body = Object::cast_to<StaticBody3D>(create_multiple_convex_collisions_node()); + ERR_FAIL_COND(!static_body); + static_body->set_name(String(get_name()) + "_col"); + + add_child(static_body); + if (get_owner()) { + static_body->set_owner(get_owner()); + int count = static_body->get_child_count(); + for (int i = 0; i < count; i++) { + CollisionShape3D *cshape = Object::cast_to<CollisionShape3D>(static_body->get_child(i)); + cshape->set_owner(get_owner()); + } + } +} + void MeshInstance3D::_notification(int p_what) { if (p_what == NOTIFICATION_ENTER_TREE) { _resolve_skeleton_path(); @@ -417,6 +452,8 @@ void MeshInstance3D::_bind_methods() { ClassDB::set_method_flags("MeshInstance3D", "create_trimesh_collision", METHOD_FLAGS_DEFAULT); ClassDB::bind_method(D_METHOD("create_convex_collision"), &MeshInstance3D::create_convex_collision); ClassDB::set_method_flags("MeshInstance3D", "create_convex_collision", METHOD_FLAGS_DEFAULT); + ClassDB::bind_method(D_METHOD("create_multiple_convex_collisions"), &MeshInstance3D::create_multiple_convex_collisions); + ClassDB::set_method_flags("MeshInstance3D", "create_multiple_convex_collisions", METHOD_FLAGS_DEFAULT); ClassDB::bind_method(D_METHOD("create_debug_tangents"), &MeshInstance3D::create_debug_tangents); ClassDB::set_method_flags("MeshInstance3D", "create_debug_tangents", METHOD_FLAGS_DEFAULT | METHOD_FLAG_EDITOR); diff --git a/scene/3d/mesh_instance_3d.h b/scene/3d/mesh_instance_3d.h index 8aec227337..9dea5804e0 100644 --- a/scene/3d/mesh_instance_3d.h +++ b/scene/3d/mesh_instance_3d.h @@ -86,6 +86,9 @@ public: Node *create_convex_collision_node(); void create_convex_collision(); + Node *create_multiple_convex_collisions_node(); + void create_multiple_convex_collisions(); + void create_debug_tangents(); virtual AABB get_aabb() const override; |