From 7bbd5454329e483c67f51dba960213da930bda1d Mon Sep 17 00:00:00 2001 From: PouleyKetchoupp Date: Thu, 11 Mar 2021 18:15:31 -0700 Subject: Disable backface collision with ConcavePolygonShape by default Helps a lot with soft bodies and generally useful to avoid shapes to go through the ground in certain cases. Added an option in ConcavePolygonShape to re-enable backface collision on specific bodies if needed. --- scene/resources/concave_polygon_shape_3d.cpp | 37 ++++++++++++++++++++++------ scene/resources/concave_polygon_shape_3d.h | 6 +++++ 2 files changed, 36 insertions(+), 7 deletions(-) (limited to 'scene') diff --git a/scene/resources/concave_polygon_shape_3d.cpp b/scene/resources/concave_polygon_shape_3d.cpp index f067695d7d..3fed700383 100644 --- a/scene/resources/concave_polygon_shape_3d.cpp +++ b/scene/resources/concave_polygon_shape_3d.cpp @@ -35,13 +35,12 @@ Vector ConcavePolygonShape3D::get_debug_mesh_lines() const { Set edges; - Vector data = get_faces(); - int datalen = data.size(); - ERR_FAIL_COND_V((datalen % 3) != 0, Vector()); + int index_count = faces.size(); + ERR_FAIL_COND_V((index_count % 3) != 0, Vector()); - const Vector3 *r = data.ptr(); + const Vector3 *r = faces.ptr(); - for (int i = 0; i < datalen; i += 3) { + for (int i = 0; i < index_count; i += 3) { for (int j = 0; j < 3; j++) { DrawEdge de(r[i + j], r[i + ((j + 1) % 3)]); edges.insert(de); @@ -71,22 +70,46 @@ real_t ConcavePolygonShape3D::get_enclosing_radius() const { } void ConcavePolygonShape3D::_update_shape() { + Dictionary d; + d["faces"] = faces; + d["backface_collision"] = backface_collision; + PhysicsServer3D::get_singleton()->shape_set_data(get_shape(), d); + Shape3D::_update_shape(); } void ConcavePolygonShape3D::set_faces(const Vector &p_faces) { - PhysicsServer3D::get_singleton()->shape_set_data(get_shape(), p_faces); + faces = p_faces; + _update_shape(); notify_change_to_owners(); } Vector ConcavePolygonShape3D::get_faces() const { - return PhysicsServer3D::get_singleton()->shape_get_data(get_shape()); + return faces; +} + +void ConcavePolygonShape3D::set_backface_collision_enabled(bool p_enabled) { + backface_collision = p_enabled; + + if (!faces.is_empty()) { + _update_shape(); + notify_change_to_owners(); + } +} + +bool ConcavePolygonShape3D::is_backface_collision_enabled() const { + return backface_collision; } void ConcavePolygonShape3D::_bind_methods() { ClassDB::bind_method(D_METHOD("set_faces", "faces"), &ConcavePolygonShape3D::set_faces); ClassDB::bind_method(D_METHOD("get_faces"), &ConcavePolygonShape3D::get_faces); + + ClassDB::bind_method(D_METHOD("set_backface_collision_enabled", "enabled"), &ConcavePolygonShape3D::set_backface_collision_enabled); + ClassDB::bind_method(D_METHOD("is_backface_collision_enabled"), &ConcavePolygonShape3D::is_backface_collision_enabled); + ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR3_ARRAY, "data", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_NOEDITOR | PROPERTY_USAGE_INTERNAL), "set_faces", "get_faces"); + ADD_PROPERTY(PropertyInfo(Variant::BOOL, "backface_collision"), "set_backface_collision_enabled", "is_backface_collision_enabled"); } ConcavePolygonShape3D::ConcavePolygonShape3D() : diff --git a/scene/resources/concave_polygon_shape_3d.h b/scene/resources/concave_polygon_shape_3d.h index 391459a3d7..bb28359dcc 100644 --- a/scene/resources/concave_polygon_shape_3d.h +++ b/scene/resources/concave_polygon_shape_3d.h @@ -36,6 +36,9 @@ class ConcavePolygonShape3D : public Shape3D { GDCLASS(ConcavePolygonShape3D, Shape3D); + Vector faces; + bool backface_collision = false; + struct DrawEdge { Vector3 a; Vector3 b; @@ -65,6 +68,9 @@ public: void set_faces(const Vector &p_faces); Vector get_faces() const; + void set_backface_collision_enabled(bool p_enabled); + bool is_backface_collision_enabled() const; + virtual Vector get_debug_mesh_lines() const override; virtual real_t get_enclosing_radius() const override; -- cgit v1.2.3