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Merge pull request #84640 from aaronfranke/gravity-get 

Expose a method to get gravity for any physics body
master
Rémi Verschelde 2024-02-05 14:48:31 +07:00
parent b4e2a24c1f aed5ea9460
commit acde2a81ff
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GPG Key ID: C3336907360768E1
10 changed files with 36 additions and 16 deletions
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6
doc/classes/PhysicsBody2D.xml
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@ -23,6 +23,12 @@
Returns an array of nodes that were added as collision exceptions for this body.
</description>
</method>
<method name="get_gravity" qualifiers="const">
<return type="Vector2" />
<description>
Returns the gravity vector computed from all sources that can affect the body, including all gravity overrides from [Area2D] nodes and the global world gravity.
</description>
</method>
<method name="move_and_collide">
<return type="KinematicCollision2D" />
<param index="0" name="motion" type="Vector2" />

6
doc/classes/PhysicsBody3D.xml
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@ -31,6 +31,12 @@
Returns an array of nodes that were added as collision exceptions for this body.
</description>
</method>
<method name="get_gravity" qualifiers="const">
<return type="Vector3" />
<description>
Returns the gravity vector computed from all sources that can affect the body, including all gravity overrides from [Area3D] nodes and the global world gravity.
</description>
</method>
<method name="move_and_collide">
<return type="KinematicCollision3D" />
<param index="0" name="motion" type="Vector3" />

5
modules/gdscript/editor/script_templates/CharacterBody2D/basic_movement.gd
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@ -6,14 +6,11 @@ extends _BASE_
const SPEED = 300.0
const JUMP_VELOCITY = -400.0
# Get the gravity from the project settings to be synced with RigidBody nodes.
var gravity: int = ProjectSettings.get_setting("physics/2d/default_gravity")
func _physics_process(delta: float) -> void:
# Add the gravity.
if not is_on_floor():
velocity.y += gravity * delta
velocity += get_gravity() * delta
# Handle jump.
if Input.is_action_just_pressed("ui_accept") and is_on_floor():

5
modules/gdscript/editor/script_templates/CharacterBody3D/basic_movement.gd
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@ -6,14 +6,11 @@ extends _BASE_
const SPEED = 5.0
const JUMP_VELOCITY = 4.5
# Get the gravity from the project settings to be synced with RigidBody nodes.
var gravity: float = ProjectSettings.get_setting("physics/3d/default_gravity")
func _physics_process(delta: float) -> void:
# Add the gravity.
if not is_on_floor():
velocity.y -= gravity * delta
velocity += get_gravity() * delta
# Handle jump.
if Input.is_action_just_pressed("ui_accept") and is_on_floor():

9
modules/mono/editor/script_templates/CharacterBody2D/basic_movement.cs
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@ -8,20 +8,21 @@ public partial class _CLASS_ : _BASE_
public const float Speed = 300.0f;
public const float JumpVelocity = -400.0f;
// Get the gravity from the project settings to be synced with RigidBody nodes.
public float gravity = ProjectSettings.GetSetting("physics/2d/default_gravity").AsSingle();
public override void _PhysicsProcess(double delta)
{
Vector2 velocity = Velocity;
// Add the gravity.
if (!IsOnFloor())
velocity.Y += gravity * (float)delta;
{
velocity += GetGravity() * (float)delta;
}
// Handle Jump.
if (Input.IsActionJustPressed("ui_accept") && IsOnFloor())
{
velocity.Y = JumpVelocity;
}
// Get the input direction and handle the movement/deceleration.
// As good practice, you should replace UI actions with custom gameplay actions.

9
modules/mono/editor/script_templates/CharacterBody3D/basic_movement.cs
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@ -8,20 +8,21 @@ public partial class _CLASS_ : _BASE_
public const float Speed = 5.0f;
public const float JumpVelocity = 4.5f;
// Get the gravity from the project settings to be synced with RigidBody nodes.
public float gravity = ProjectSettings.GetSetting("physics/3d/default_gravity").AsSingle();
public override void _PhysicsProcess(double delta)
{
Vector3 velocity = Velocity;
// Add the gravity.
if (!IsOnFloor())
velocity.Y -= gravity * (float)delta;
{
velocity += GetGravity() * (float)delta;
}
// Handle Jump.
if (Input.IsActionJustPressed("ui_accept") && IsOnFloor())
{
velocity.Y = JumpVelocity;
}
// Get the input direction and handle the movement/deceleration.
// As good practice, you should replace UI actions with custom gameplay actions.

5
scene/2d/physics_body_2d.cpp
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@ -35,6 +35,7 @@
void PhysicsBody2D::_bind_methods() {
ClassDB::bind_method(D_METHOD("move_and_collide", "motion", "test_only", "safe_margin", "recovery_as_collision"), &PhysicsBody2D::_move, DEFVAL(false), DEFVAL(0.08), DEFVAL(false));
ClassDB::bind_method(D_METHOD("test_move", "from", "motion", "collision", "safe_margin", "recovery_as_collision"), &PhysicsBody2D::test_move, DEFVAL(Variant()), DEFVAL(0.08), DEFVAL(false));
ClassDB::bind_method(D_METHOD("get_gravity"), &PhysicsBody2D::get_gravity);
ClassDB::bind_method(D_METHOD("get_collision_exceptions"), &PhysicsBody2D::get_collision_exceptions);
ClassDB::bind_method(D_METHOD("add_collision_exception_with", "body"), &PhysicsBody2D::add_collision_exception_with);
@ -145,6 +146,10 @@ bool PhysicsBody2D::test_move(const Transform2D &p_from, const Vector2 &p_motion
return PhysicsServer2D::get_singleton()->body_test_motion(get_rid(), parameters, r);
}
Vector2 PhysicsBody2D::get_gravity() const {
return PhysicsServer2D::get_singleton()->body_get_direct_state(get_rid())->get_total_gravity();
}
TypedArray<PhysicsBody2D> PhysicsBody2D::get_collision_exceptions() {
List<RID> exceptions;
PhysicsServer2D::get_singleton()->body_get_collision_exceptions(get_rid(), &exceptions);

1
scene/2d/physics_body_2d.h
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@ -52,6 +52,7 @@ protected:
public:
bool move_and_collide(const PhysicsServer2D::MotionParameters &p_parameters, PhysicsServer2D::MotionResult &r_result, bool p_test_only = false, bool p_cancel_sliding = true);
bool test_move(const Transform2D &p_from, const Vector2 &p_motion, const Ref<KinematicCollision2D> &r_collision = Ref<KinematicCollision2D>(), real_t p_margin = 0.08, bool p_recovery_as_collision = false);
Vector2 get_gravity() const;
TypedArray<PhysicsBody2D> get_collision_exceptions();
void add_collision_exception_with(Node *p_node); //must be physicsbody

5
scene/3d/physics_body_3d.cpp
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@ -35,6 +35,7 @@
void PhysicsBody3D::_bind_methods() {
ClassDB::bind_method(D_METHOD("move_and_collide", "motion", "test_only", "safe_margin", "recovery_as_collision", "max_collisions"), &PhysicsBody3D::_move, DEFVAL(false), DEFVAL(0.001), DEFVAL(false), DEFVAL(1));
ClassDB::bind_method(D_METHOD("test_move", "from", "motion", "collision", "safe_margin", "recovery_as_collision", "max_collisions"), &PhysicsBody3D::test_move, DEFVAL(Variant()), DEFVAL(0.001), DEFVAL(false), DEFVAL(1));
ClassDB::bind_method(D_METHOD("get_gravity"), &PhysicsBody3D::get_gravity);
ClassDB::bind_method(D_METHOD("set_axis_lock", "axis", "lock"), &PhysicsBody3D::set_axis_lock);
ClassDB::bind_method(D_METHOD("get_axis_lock", "axis"), &PhysicsBody3D::get_axis_lock);
@ -187,6 +188,10 @@ bool PhysicsBody3D::test_move(const Transform3D &p_from, const Vector3 &p_motion
return PhysicsServer3D::get_singleton()->body_test_motion(get_rid(), parameters, r);
}
Vector3 PhysicsBody3D::get_gravity() const {
return PhysicsServer3D::get_singleton()->body_get_direct_state(get_rid())->get_total_gravity();
}
void PhysicsBody3D::set_axis_lock(PhysicsServer3D::BodyAxis p_axis, bool p_lock) {
if (p_lock) {
locked_axis |= p_axis;

1
scene/3d/physics_body_3d.h
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@ -55,6 +55,7 @@ protected:
public:
bool move_and_collide(const PhysicsServer3D::MotionParameters &p_parameters, PhysicsServer3D::MotionResult &r_result, bool p_test_only = false, bool p_cancel_sliding = true);
bool test_move(const Transform3D &p_from, const Vector3 &p_motion, const Ref<KinematicCollision3D> &r_collision = Ref<KinematicCollision3D>(), real_t p_margin = 0.001, bool p_recovery_as_collision = false, int p_max_collisions = 1);
Vector3 get_gravity() const;
void set_axis_lock(PhysicsServer3D::BodyAxis p_axis, bool p_lock);
bool get_axis_lock(PhysicsServer3D::BodyAxis p_axis) const;