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README.md

-[![Godot Engine logo](/logo.png)](https://godotengine.org)
+# Marte engine
 
-## Godot Engine
+A fork from [godot engine](https://whatever.com) customized for our
+marte project.
 
-Homepage: https://godotengine.org
+You will see.
 
-#### 2D and 3D cross-platform game engine
-
-Godot Engine is a feature-packed, cross-platform game engine to create 2D and
-3D games from a unified interface. It provides a comprehensive set of common
-tools, so that users can focus on making games without having to reinvent the
-wheel. Games can be exported in one click to a number of platforms, including
-the major desktop platforms (Linux, Mac OSX, Windows) as well as mobile
-(Android, iOS) and web-based (HTML5) platforms.
-
-#### Free, open source and community-driven
-
-Godot is completely free and open source under the very permissive MIT license.
-No strings attached, no royalties, nothing. The users' games are theirs, down
-to the last line of engine code. Godot's development is fully independent and
-community-driven, empowering users to help shape their engine to match their
-expectations. It is supported by the Software Freedom Conservancy
-not-for-profit.
-
-Before being open sourced in February 2014, Godot had been developed by Juan
-Linietsky and Ariel Manzur (both still maintaining the project) for several
-years as an in-house engine, used to publish several work-for-hire titles.
-
-![Screenshot of a 3D scene in Godot Engine](https://download.tuxfamily.org/godotengine/media/screenshots/editor_3d_fracteed.jpg)
-
-### Getting the engine
-
-#### Binary downloads
-
-Official binaries for the Godot editor and the export templates can be found
-[on the homepage](https://godotengine.org/download).
-
-#### Compiling from source
-
-[See the official docs](https://docs.godotengine.org/en/latest/development/compiling/)
-for compilation instructions for every supported platform.
-
-### Community and contributing
-
-Godot is not only an engine but an ever-growing community of users and engine
-developers. The main community channels are listed [on the homepage](https://godotengine.org/community).
-
-To get in touch with the developers, the best way is to join the
-[#godotengine IRC channel](https://webchat.freenode.net/?channels=godotengine)
-on Freenode.
-
-To get started contributing to the project, see the [contributing guide](CONTRIBUTING.md).
-
-### Documentation and demos
-
-The official documentation is hosted on [ReadTheDocs](https://docs.godotengine.org).
-It is maintained by the Godot community in its own [GitHub repository](https://github.com/godotengine/godot-docs).
-
-The [class reference](https://docs.godotengine.org/en/latest/classes/)
-is also accessible from within the engine.
-
-The official demos are maintained in their own [GitHub repository](https://github.com/godotengine/godot-demo-projects)
-as well.
-
-There are also a number of other learning resources provided by the community,
-such as text and video tutorials, demos, etc. Consult the [community channels](https://godotengine.org/community)
-for more info.
-
-[![Travis Build Status](https://travis-ci.org/godotengine/godot.svg?branch=master)](https://travis-ci.org/godotengine/godot)
-[![AppVeyor Build Status](https://ci.appveyor.com/api/projects/status/bfiihqq6byxsjxxh/branch/master?svg=true)](https://ci.appveyor.com/project/akien-mga/godot)
-[![Code Triagers Badge](https://www.codetriage.com/godotengine/godot/badges/users.svg)](https://www.codetriage.com/godotengine/godot)
+<!--TODOs
+- TODO: add unittests
+- TODO: add a proper README description
+- TODO: add compiling steps in the README [or a script eventually]
+-->

modules/bullet/bullet_physics_server.cpp

@@ -634,6 +634,15 @@ uint32_t BulletPhysicsServer::body_get_user_flags(RID p_body) const {
 	return 0;
 }
 
+void BulletPhysicsServer::set_gravity(RID p_body, Vector3 p_gravity)
+{
+
+	RigidBodyBullet *body = rigid_body_owner.get(p_body);
+	ERR_FAIL_COND(!body);
+
+	body->set_gravity(p_gravity);
+}
+
 void BulletPhysicsServer::body_set_param(RID p_body, BodyParameter p_param, float p_value) {
 	RigidBodyBullet *body = rigid_body_owner.get(p_body);
 	ERR_FAIL_COND(!body);

modules/bullet/bullet_physics_server.h

@@ -206,6 +206,7 @@ public:
 	/// This is not supported by physics server
 	virtual uint32_t body_get_user_flags(RID p_body) const;
 
+	virtual void set_gravity(RID p_body, Vector3 p_gravity) override;
 	virtual void body_set_param(RID p_body, BodyParameter p_param, float p_value);
 	virtual float body_get_param(RID p_body, BodyParameter p_param) const;
 

modules/bullet/rigid_body_bullet.cpp

@@ -485,6 +485,14 @@ void RigidBodyBullet::set_omit_forces_integration(bool p_omit) {
 	omit_forces_integration = p_omit;
 }
 
+void RigidBodyBullet::set_gravity(Vector3 gravity)
+{
+	btVector3 bVec;
+
+	G_TO_B(gravity, bVec);
+	btBody->setGravity(bVec);
+}
+
 void RigidBodyBullet::set_param(PhysicsServer::BodyParameter p_param, real_t p_value) {
 	switch (p_param) {
 		case PhysicsServer::BODY_PARAM_BOUNCE:

modules/bullet/rigid_body_bullet.h

@@ -278,6 +278,8 @@ public:
 	void set_omit_forces_integration(bool p_omit);
 	_FORCE_INLINE_ bool get_omit_forces_integration() const { return omit_forces_integration; }
 
+	void set_gravity(Vector3 gravity);
+
 	void set_param(PhysicsServer::BodyParameter p_param, real_t);
 	real_t get_param(PhysicsServer::BodyParameter p_param) const;
 

scene/3d/physics_body.cpp

@@ -335,6 +335,11 @@ void StaticBody::_reload_physics_characteristics() {
 	}
 }
 
+void RigidBody::set_gravity(Vector3 gravity)
+{
+	PhysicsServer::get_singleton()->set_gravity(get_rid(), gravity);
+}
+
 void RigidBody::_body_enter_tree(ObjectID p_id) {
 
 	Object *obj = ObjectDB::get_instance(p_id);
@@ -943,7 +948,8 @@ String RigidBody::get_configuration_warning() const {
 }
 
 void RigidBody::_bind_methods() {
-
+	ClassDB::bind_method(D_METHOD("set_gravity","gravity"),
+	                     &RigidBody::set_gravity);
 	ClassDB::bind_method(D_METHOD("set_mode", "mode"), &RigidBody::set_mode);
 	ClassDB::bind_method(D_METHOD("get_mode"), &RigidBody::get_mode);
 

scene/3d/physics_body.h

@@ -203,6 +203,7 @@ public:
 
 	void set_weight(real_t p_weight);
 	real_t get_weight() const;
+	void set_gravity(Vector3 gravity);
 
 #ifndef DISABLE_DEPRECATED
 	void set_friction(real_t p_friction);

servers/physics/physics_server_sw.h

@@ -31,6 +31,7 @@
 #ifndef PHYSICS_SERVER_SW
 #define PHYSICS_SERVER_SW
 
+#include <cassert>
 #include "joints_sw.h"
 #include "servers/physics_server.h"
 #include "shape_sw.h"
@@ -79,6 +80,14 @@ public:
 		Vector3 *ptr;
 	};
 
+	/* WARNING: we are not going to support this server, for reference look
+	 * at implementetion in servers/physics_server.h
+	 */
+	virtual void set_gravity(RID p_body, Vector3 gravity)
+	{
+	    assert(false);
+	};
+
 	static void _shape_col_cbk(const Vector3 &p_point_A, const Vector3 &p_point_B, void *p_userdata);
 
 	virtual RID shape_create(ShapeType p_shape);

servers/physics_server.cpp

@@ -488,6 +488,7 @@ void PhysicsServer::_bind_methods() {
 	ClassDB::bind_method(D_METHOD("body_set_enable_continuous_collision_detection", "body", "enable"), &PhysicsServer::body_set_enable_continuous_collision_detection);
 	ClassDB::bind_method(D_METHOD("body_is_continuous_collision_detection_enabled", "body"), &PhysicsServer::body_is_continuous_collision_detection_enabled);
 
+	ClassDB::bind_method(D_METHOD("set_gravity", "body", "gravity"), &PhysicsServer::set_gravity);
 	ClassDB::bind_method(D_METHOD("body_set_param", "body", "param", "value"), &PhysicsServer::body_set_param);
 	ClassDB::bind_method(D_METHOD("body_get_param", "body", "param"), &PhysicsServer::body_get_param);
 

servers/physics_server.h

@@ -411,6 +411,7 @@ public:
 		BODY_PARAM_MAX,
 	};
 
+	virtual void set_gravity(RID p_body, Vector3 gravity) = 0;
 	virtual void body_set_param(RID p_body, BodyParameter p_param, float p_value) = 0;
 	virtual float body_get_param(RID p_body, BodyParameter p_param) const = 0;