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VehicleWheel can now return the surface it's colliding with. #55723

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merged 1 commit into from
Dec 10, 2021
Merged

VehicleWheel can now return the surface it's colliding with. #55723

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7 changes: 7 additions & 0 deletions doc/classes/VehicleWheel3D.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,13 @@
<link title="3D Truck Town Demo">https://godotengine.org/asset-library/asset/524</link>
</tutorials>
<methods>
<method name="get_contact_body" qualifiers="const">
<return type="Node3D" />
<description>
Returns the contacting body node if valid in the tree, as [Node3D]. At the moment, [GridMap] is not supported so the node will be always of type [PhysicsBody3D].
Returns [code]null[/code] if the wheel is not in contact with a surface, or the contact body is not a [PhysicsBody3D].
</description>
</method>
<method name="get_rpm" qualifiers="const">
<return type="float" />
<description>
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8 changes: 6 additions & 2 deletions scene/3d/vehicle_body_3d.cpp
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Expand Up @@ -225,6 +225,10 @@ bool VehicleWheel3D::is_in_contact() const {
return m_raycastInfo.m_isInContact;
}

Node3D *VehicleWheel3D::get_contact_body() const {
return m_raycastInfo.m_groundObject;
}

void VehicleWheel3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("set_radius", "length"), &VehicleWheel3D::set_radius);
ClassDB::bind_method(D_METHOD("get_radius"), &VehicleWheel3D::get_radius);
Expand Down Expand Up @@ -257,6 +261,7 @@ void VehicleWheel3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("get_friction_slip"), &VehicleWheel3D::get_friction_slip);

ClassDB::bind_method(D_METHOD("is_in_contact"), &VehicleWheel3D::is_in_contact);
ClassDB::bind_method(D_METHOD("get_contact_body"), &VehicleWheel3D::get_contact_body);

ClassDB::bind_method(D_METHOD("set_roll_influence", "roll_influence"), &VehicleWheel3D::set_roll_influence);
ClassDB::bind_method(D_METHOD("get_roll_influence"), &VehicleWheel3D::get_roll_influence);
Expand Down Expand Up @@ -413,9 +418,8 @@ real_t VehicleBody3D::_ray_cast(int p_idx, PhysicsDirectBodyState3D *s) {
ray_params.exclude = exclude;
ray_params.collision_mask = get_collision_mask();

bool col = ss->intersect_ray(ray_params, rr);

wheel.m_raycastInfo.m_groundObject = nullptr;
bool col = ss->intersect_ray(ray_params, rr);

if (col) {
param = source.distance_to(rr.position) / source.distance_to(target);
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2 changes: 2 additions & 0 deletions scene/3d/vehicle_body_3d.h
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Expand Up @@ -129,6 +129,8 @@ class VehicleWheel3D : public Node3D {

bool is_in_contact() const;

Node3D *get_contact_body() const;

void set_roll_influence(real_t p_value);
real_t get_roll_influence() const;

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