godot/scene/2d/physics_body_2d.h

/*************************************************************************/
/*  physics_body_2d.h                                                    */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                 */
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#ifndef PHYSICS_BODY_2D_H
#define PHYSICS_BODY_2D_H

#include "scene/2d/collision_object_2d.h"
#include "servers/physics_2d_server.h"
#include "vset.h"


class PhysicsBody2D : public CollisionObject2D {

	OBJ_TYPE(PhysicsBody2D,CollisionObject2D);

protected:

	void _notification(int p_what);
	PhysicsBody2D(Physics2DServer::BodyMode p_mode);
public:

	PhysicsBody2D();

};

class StaticBody2D : public PhysicsBody2D {

	OBJ_TYPE(StaticBody2D,PhysicsBody2D);

	Matrix32 *pre_xform;
	//RID query;
	bool setting;
	bool pending;
	bool simulating_motion;
	Vector2 constant_linear_velocity;
	real_t constant_angular_velocity;
	void _update_xform();
	void _state_notify(Object *p_object);

	real_t bounce;
	real_t friction;


protected:

	void _notification(int p_what);
	static void _bind_methods();

public:

	void set_friction(real_t p_friction);
	real_t get_friction() const;

	void set_bounce(real_t p_bounce);
	real_t get_bounce() const;

	void set_simulate_motion(bool p_enable);
	bool is_simulating_motion() const;

	void set_constant_linear_velocity(const Vector2& p_vel);
	void set_constant_angular_velocity(real_t p_vel);

	Vector2 get_constant_linear_velocity() const;
	real_t get_constant_angular_velocity() const;

	StaticBody2D();
	~StaticBody2D();

};

class RigidBody2D : public PhysicsBody2D {

	OBJ_TYPE(RigidBody2D,PhysicsBody2D);
public:

	enum Mode {
		MODE_RIGID,
		MODE_STATIC,
		MODE_CHARACTER,
		MODE_STATIC_ACTIVE,
	};
private:

	bool can_sleep;
	Physics2DDirectBodyState *state;
	Mode mode;

	real_t bounce;
	real_t mass;
	real_t friction;

	Vector2 linear_velocity;
	real_t angular_velocity;
	bool active;
	bool ccd;


	int max_contacts_reported;

	bool custom_integrator;


	struct ShapePair {

		int body_shape;
		int local_shape;
		bool tagged;
		bool operator<(const ShapePair& p_sp) const {
			if (body_shape==p_sp.body_shape)
				return local_shape < p_sp.local_shape;
			else
				return body_shape < p_sp.body_shape;
		}

		ShapePair() {}
		ShapePair(int p_bs, int p_ls) { body_shape=p_bs; local_shape=p_ls; }
	};
	struct RigidBody2D_RemoveAction {


		ObjectID body_id;
		ShapePair pair;

	};
	struct BodyState {

		int rc;
		bool in_scene;
		VSet<ShapePair> shapes;
	};

	struct ContactMonitor {


		Map<ObjectID,BodyState> body_map;

	};


	ContactMonitor *contact_monitor;
	void _body_enter_scene(ObjectID p_id);
	void _body_exit_scene(ObjectID p_id);


	void _body_inout(int p_status, ObjectID p_instance, int p_body_shape,int p_local_shape);
	void _direct_state_changed(Object *p_state);


protected:

	void _notification(int p_what);
	static void _bind_methods();
public:

	void set_mode(Mode p_mode);
	Mode get_mode() const;

	void set_mass(real_t p_mass);
	real_t get_mass() const;

	void set_weight(real_t p_weight);
	real_t get_weight() const;

	void set_friction(real_t p_friction);
	real_t get_friction() const;

	void set_bounce(real_t p_bounce);
	real_t get_bounce() const;

	void set_linear_velocity(const Vector2& p_velocity);
	Vector2 get_linear_velocity() const;

	void set_axis_velocity(const Vector2& p_axis);

	void set_angular_velocity(real_t p_velocity);
	real_t get_angular_velocity() const;

	void set_use_custom_integrator(bool p_enable);
	bool is_using_custom_integrator();

	void set_active(bool p_active);
	bool is_active() const;

	void set_can_sleep(bool p_active);
	bool is_able_to_sleep() const;

	void set_contact_monitor(bool p_enabled);
	bool is_contact_monitor_enabled() const;

	void set_max_contacts_reported(int p_amount);
	int get_max_contacts_reported() const;

	void set_use_continuous_collision_detection(bool p_enable);
	bool is_using_continuous_collision_detection() const;

	void apply_impulse(const Vector2& p_pos, const Vector2& p_impulse);

	void set_applied_force(const Vector2& p_force);
	Vector2 get_applied_force() const;

	RigidBody2D();
	~RigidBody2D();

};

VARIANT_ENUM_CAST(RigidBody2D::Mode);
#endif // PHYSICS_BODY_2D_H