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Expose creating multiple-convex-collision static bodies to GDScript

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This commit is contained in:
asheraryam 2020-04-30 09:41:22 +03:00
parent 492b8aa9a5
commit ecfbb0fd28
3 changed files with 47 additions and 0 deletions
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7
doc/classes/MeshInstance3D.xml
View file

@ -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>

37
scene/3d/mesh_instance_3d.cpp
View file

@ -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);

3
scene/3d/mesh_instance_3d.h
View file

@ -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;