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Implement CollisionPolygon3D margin

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This commit is contained in:
hoontee 2021-02-09 13:37:12 -06:00
parent 5f23fcf847
commit fbb1ef759c
4 changed files with 25 additions and 1 deletions
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3
doc/classes/CollisionPolygon3D.xml
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@ -17,6 +17,9 @@
<member name="disabled" type="bool" setter="set_disabled" getter="is_disabled" default="false">
If [code]true[/code], no collision will be produced.
</member>
<member name="margin" type="float" setter="set_margin" getter="get_margin" default="0.04">
The collision margin for the generated [Shape3D]. See [member Shape3D.margin] for more details.
</member>
<member name="polygon" type="PackedVector2Array" setter="set_polygon" getter="get_polygon" default="PackedVector2Array( )">
Array of vertices which define the polygon.
[b]Note:[/b] The returned value is a copy of the original. Methods which mutate the size or properties of the return value will not impact the original polygon. To change properties of the polygon, assign it to a temporary variable and make changes before reassigning the [code]polygon[/code] member.

3
doc/classes/Shape3D.xml
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@ -13,7 +13,8 @@
</methods>
<members>
<member name="margin" type="float" setter="set_margin" getter="get_margin" default="0.04">
The collision margin for the shape.
The collision margin for the shape. Used in Bullet Physics only.
Collision margins allows collision detection to be more efficient by adding an extra shell around shapes. Collision algorithms are more expensive when objects overlap by more than their margin, so a higher value for margins is better for performance, at the cost of accuracy around edges as it makes them less sharp.
</member>
</members>
<constants>

16
scene/3d/collision_polygon_3d.cpp
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@ -70,6 +70,7 @@ void CollisionPolygon3D::_build_polygon() {
}
convex->set_points(cp);
convex->set_margin(margin);
parent->shape_owner_add_shape(owner_id, convex);
parent->shape_owner_set_disabled(owner_id, disabled);
}
@ -155,6 +156,17 @@ bool CollisionPolygon3D::is_disabled() const {
return disabled;
}
real_t CollisionPolygon3D::get_margin() const {
return margin;
}
void CollisionPolygon3D::set_margin(real_t p_margin) {
margin = p_margin;
if (parent) {
_build_polygon();
}
}
String CollisionPolygon3D::get_configuration_warning() const {
String warning = Node3D::get_configuration_warning();
@ -189,11 +201,15 @@ void CollisionPolygon3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_disabled", "disabled"), &CollisionPolygon3D::set_disabled);
ClassDB::bind_method(D_METHOD("is_disabled"), &CollisionPolygon3D::is_disabled);
ClassDB::bind_method(D_METHOD("set_margin", "margin"), &CollisionPolygon3D::set_margin);
ClassDB::bind_method(D_METHOD("get_margin"), &CollisionPolygon3D::get_margin);
ClassDB::bind_method(D_METHOD("_is_editable_3d_polygon"), &CollisionPolygon3D::_is_editable_3d_polygon);
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "depth"), "set_depth", "get_depth");
ADD_PROPERTY(PropertyInfo(Variant::BOOL, "disabled"), "set_disabled", "is_disabled");
ADD_PROPERTY(PropertyInfo(Variant::PACKED_VECTOR2_ARRAY, "polygon"), "set_polygon", "get_polygon");
ADD_PROPERTY(PropertyInfo(Variant::FLOAT, "margin", PROPERTY_HINT_RANGE, "0.001,10,0.001"), "set_margin", "get_margin");
}
CollisionPolygon3D::CollisionPolygon3D() {

4
scene/3d/collision_polygon_3d.h
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@ -37,6 +37,7 @@
class CollisionObject3D;
class CollisionPolygon3D : public Node3D {
GDCLASS(CollisionPolygon3D, Node3D);
real_t margin = 0.04;
protected:
real_t depth = 1.0;
@ -70,6 +71,9 @@ public:
virtual AABB get_item_rect() const;
real_t get_margin() const;
void set_margin(real_t p_margin);
String get_configuration_warning() const override;
CollisionPolygon3D();