diff options
Diffstat (limited to 'servers/physics_2d')
| -rw-r--r-- | servers/physics_2d/area_2d_sw.cpp | 3 | ||||
| -rw-r--r-- | servers/physics_2d/area_2d_sw.h | 4 | ||||
| -rw-r--r-- | servers/physics_2d/body_2d_sw.cpp | 9 |
3 files changed, 13 insertions, 3 deletions
diff --git a/servers/physics_2d/area_2d_sw.cpp b/servers/physics_2d/area_2d_sw.cpp index dad1891b77..1a41cda482 100644 --- a/servers/physics_2d/area_2d_sw.cpp +++ b/servers/physics_2d/area_2d_sw.cpp @@ -120,6 +120,7 @@ void Area2DSW::set_param(Physics2DServer::AreaParameter p_param, const Variant& case Physics2DServer::AREA_PARAM_GRAVITY: gravity=p_value; ; break; case Physics2DServer::AREA_PARAM_GRAVITY_VECTOR: gravity_vector=p_value; ; break; case Physics2DServer::AREA_PARAM_GRAVITY_IS_POINT: gravity_is_point=p_value; ; break; + case Physics2DServer::AREA_PARAM_GRAVITY_DISTANCE_SCALE: gravity_distance_scale=p_value; ; break; case Physics2DServer::AREA_PARAM_GRAVITY_POINT_ATTENUATION: point_attenuation=p_value; ; break; case Physics2DServer::AREA_PARAM_LINEAR_DAMP: linear_damp=p_value; ; break; case Physics2DServer::AREA_PARAM_ANGULAR_DAMP: angular_damp=p_value; ; break; @@ -136,6 +137,7 @@ Variant Area2DSW::get_param(Physics2DServer::AreaParameter p_param) const { case Physics2DServer::AREA_PARAM_GRAVITY: return gravity; case Physics2DServer::AREA_PARAM_GRAVITY_VECTOR: return gravity_vector; case Physics2DServer::AREA_PARAM_GRAVITY_IS_POINT: return gravity_is_point; + case Physics2DServer::AREA_PARAM_GRAVITY_DISTANCE_SCALE: return gravity_distance_scale; case Physics2DServer::AREA_PARAM_GRAVITY_POINT_ATTENUATION: return point_attenuation; case Physics2DServer::AREA_PARAM_LINEAR_DAMP: return linear_damp; case Physics2DServer::AREA_PARAM_ANGULAR_DAMP: return angular_damp; @@ -248,6 +250,7 @@ Area2DSW::Area2DSW() : CollisionObject2DSW(TYPE_AREA), monitor_query_list(this), gravity=9.80665; gravity_vector=Vector2(0,-1); gravity_is_point=false; + gravity_distance_scale=0; point_attenuation=1; angular_damp=1.0; diff --git a/servers/physics_2d/area_2d_sw.h b/servers/physics_2d/area_2d_sw.h index 4a54a337ed..6d99764c68 100644 --- a/servers/physics_2d/area_2d_sw.h +++ b/servers/physics_2d/area_2d_sw.h @@ -46,6 +46,7 @@ class Area2DSW : public CollisionObject2DSW{ float gravity; Vector2 gravity_vector; bool gravity_is_point; + float gravity_distance_scale; float point_attenuation; float linear_damp; float angular_damp; @@ -139,6 +140,9 @@ public: _FORCE_INLINE_ void set_gravity_as_point(bool p_enable) { gravity_is_point=p_enable; } _FORCE_INLINE_ bool is_gravity_point() const { return gravity_is_point; } + _FORCE_INLINE_ void set_gravity_distance_scale(float scale) { gravity_distance_scale=scale; } + _FORCE_INLINE_ float get_gravity_distance_scale() const { return gravity_distance_scale; } + _FORCE_INLINE_ void set_point_attenuation(float p_point_attenuation) { point_attenuation=p_point_attenuation; } _FORCE_INLINE_ float get_point_attenuation() const { return point_attenuation; } diff --git a/servers/physics_2d/body_2d_sw.cpp b/servers/physics_2d/body_2d_sw.cpp index ccce058f13..38835c9a82 100644 --- a/servers/physics_2d/body_2d_sw.cpp +++ b/servers/physics_2d/body_2d_sw.cpp @@ -383,9 +383,12 @@ void Body2DSW::set_space(Space2DSW *p_space){ void Body2DSW::_compute_area_gravity(const Area2DSW *p_area) { if (p_area->is_gravity_point()) { - - gravity += (p_area->get_transform().xform(p_area->get_gravity_vector()) - get_transform().get_origin()).normalized() * p_area->get_gravity(); - + if(p_area->get_gravity_distance_scale() > 0) { + Vector2 v = p_area->get_transform().xform(p_area->get_gravity_vector()) - get_transform().get_origin(); + gravity += v.normalized() * (p_area->get_gravity() / Math::pow(v.length() * p_area->get_gravity_distance_scale()+1, 2) ); + } else { + gravity += (p_area->get_transform().xform(p_area->get_gravity_vector()) - get_transform().get_origin()).normalized() * p_area->get_gravity(); + } } else { gravity += p_area->get_gravity_vector() * p_area->get_gravity(); } |