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Create bindings for creating multiple-convex-collision static bodies from gdscript

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This commit is contained in:
asheraryam 2020-04-30 02:51:43 +03:00
parent aa4cb409ce
commit 342c88841d
3 changed files with 48 additions and 0 deletions
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7
doc/classes/MeshInstance.xml
View file

@ -27,6 +27,13 @@
This helper creates a [MeshInstance] child node with gizmos at every vertex 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 [StaticBody] child node with multiple [ConvexPolygonShape] collision shapes calculated from the mesh geometry via convex decomposition. It's mainly used for testing.
</description>
</method>
<method name="create_trimesh_collision">
<return type="void">
</return>

38
scene/3d/mesh_instance.cpp
View file

@ -573,6 +573,42 @@ void MeshInstance::create_trimesh_collision() {
}
}
Node *MeshInstance::create_multiple_convex_collisions_node() {
if (mesh.is_null())
return NULL;
Vector<Ref<Shape> > shapes = mesh->convex_decompose();
if (!shapes.size()) {
return NULL;
}
StaticBody *static_body = memnew(StaticBody);
for (int i = 0; i < shapes.size(); i++) {
CollisionShape *cshape = memnew(CollisionShape);
cshape->set_shape(shapes[i]);
static_body->add_child(cshape);
}
return static_body;
}
void MeshInstance::create_multiple_convex_collisions() {
StaticBody *static_body = Object::cast_to<StaticBody>(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++) {
CollisionShape *cshape = Object::cast_to<CollisionShape>(static_body->get_child(i));
cshape->set_owner(get_owner());
}
}
}
Node *MeshInstance::create_convex_collision_node() {
if (mesh.is_null())
@ -803,6 +839,8 @@ void MeshInstance::_bind_methods() {
ClassDB::bind_method(D_METHOD("create_trimesh_collision"), &MeshInstance::create_trimesh_collision);
ClassDB::set_method_flags("MeshInstance", "create_trimesh_collision", METHOD_FLAGS_DEFAULT);
ClassDB::bind_method(D_METHOD("create_multiple_convex_collisions"), &MeshInstance::create_multiple_convex_collisions);
ClassDB::set_method_flags("MeshInstance", "create_multiple_convex_collisions", METHOD_FLAGS_DEFAULT);
ClassDB::bind_method(D_METHOD("create_convex_collision"), &MeshInstance::create_convex_collision);
ClassDB::set_method_flags("MeshInstance", "create_convex_collision", METHOD_FLAGS_DEFAULT);
ClassDB::bind_method(D_METHOD("_mesh_changed"), &MeshInstance::_mesh_changed);

3
scene/3d/mesh_instance.h
View file

@ -127,6 +127,9 @@ public:
Node *create_trimesh_collision_node();
void create_trimesh_collision();
Node *create_multiple_convex_collisions_node();
void create_multiple_convex_collisions();
Node *create_convex_collision_node();
void create_convex_collision();