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Add apply_force and apply_force_to_center #5

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7 changes: 7 additions & 0 deletions liquidfun-c/Box2D/Dynamics/c_b2Body.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -39,5 +39,12 @@ extern "C" {
return self->GetLocalPoint(worldPoint);
}

void b2Body_ApplyForce(b2Body* self, const b2Vec2& force, const b2Vec2& point, bool wake) {
self->ApplyForce(force, point, wake);
}

void b2Body_ApplyForceToCenter(b2Body* self, const b2Vec2& force, bool wake) {
self->ApplyForceToCenter(force, wake);
}
} // extern C

4 changes: 3 additions & 1 deletion liquidfun-c/Box2D/Dynamics/c_b2Body.h
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Original file line number Diff line number Diff line change
Expand Up @@ -14,8 +14,10 @@ extern "C" {
void* b2Body_GetUserData(const b2Body* self);
b2World* b2Body_GetWorld(b2Body* self);
b2Vec2 b2Body_GetLocalPoint(const b2Body* self, const b2Vec2& worldPoint);
void b2Body_ApplyForce(b2Body* self, const b2Vec2& force, const b2Vec2& point, bool wake);
void b2Body_ApplyForceToCenter(b2Body* self, const b2Vec2& force, bool wake);

#ifdef __cplusplus
} // extern C
#endif
#endif
#endif
14 changes: 14 additions & 0 deletions src/box2d/dynamics/body.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -111,6 +111,8 @@ extern {
fn b2Body_GetUserData(this: *const B2Body) -> usize;
fn b2Body_GetWorld(this: *const B2Body) -> *mut B2World;
fn b2Body_GetLocalPoint(this: *const B2Body, worldPoint: &Vec2) -> Vec2;
fn b2Body_ApplyForce(this: *mut B2Body, force: &Vec2, point: &Vec2, wake: bool);
fn b2Body_ApplyForceToCenter(this: *mut B2Body, force: &Vec2, wake: bool);
}

/// A rigid body. These are created via b2World::CreateBody.
Expand Down Expand Up @@ -193,6 +195,18 @@ impl Body {
}
}

pub fn apply_force(&self, force: &Vec2, point: &Vec2, wake: bool) {
unsafe {
b2Body_ApplyForce(self.ptr, force, point, wake);
}
}

pub fn apply_force_to_center(&self, force: &Vec2, wake: bool) {
unsafe {
b2Body_ApplyForceToCenter(self.ptr, force, wake);
}
}

/// Get the user data pointer that was provided in the body definition.
pub fn get_user_data(&self) -> usize {
unsafe {
Expand Down