Expose bullet shape margin to UI.

The margin value is exposed into the UI for shape ressource.
This value can be modified through set_margin and get from get_margin
or by using the property margin. Each time the margin is modified
the associated collision shape is recreated and the margin value is
used in ShapeBullet::prepare.

1 files changed, 21 insertions, 2 deletions

diff --git a/scene/resources/shape.cpp b/scene/resources/shape.cpp
index 418d8ce819..a48ce0564b 100644
--- a/scene/resources/shape.cpp
+++ b/scene/resources/shape.cpp
@@ -50,6 +50,15 @@ void Shape::add_vertices_to_array(PoolVector<Vector3> &array, const Transform &p
 	}
 }
 
+real_t Shape::get_margin() const {
+	return margin;
+}
+
+void Shape::set_margin(real_t p_margin) {
+	margin = p_margin;
+	PhysicsServer::get_singleton()->shape_set_margin(shape, margin);
+}
+
 Ref<ArrayMesh> Shape::get_debug_mesh() {
 
 	if (debug_mesh_cache.is_valid())
@@ -87,12 +96,22 @@ Ref<ArrayMesh> Shape::get_debug_mesh() {
 	return debug_mesh_cache;
 }
 
-Shape::Shape() {
+void Shape::_bind_methods() {
+
+	ClassDB::bind_method(D_METHOD("set_margin", "margin"), &Shape::set_margin);
+	ClassDB::bind_method(D_METHOD("get_margin"), &Shape::get_margin);
+
+	ADD_PROPERTY(PropertyInfo(Variant::REAL, "margin", PROPERTY_HINT_RANGE, "0.04,10,0.01"), "set_margin", "get_margin");
+}
+
+Shape::Shape() :
+		margin(0.04) {
 
 	ERR_PRINT("Constructor must not be called!");
 }
 
-Shape::Shape(RID p_shape) {
+Shape::Shape(RID p_shape) :
+		margin(0.04) {
 
 	shape = p_shape;
 }