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#pragma once
#include <cstdint>
#include "../Component.h"
#include "Vector2.h"
namespace crepe {
/**
* \brief Rigidbody class
*
* This class is used by the physics sytem and collision system.
* It configures how to system interact with the gameobject for movement and collisions.
*/
class Rigidbody : public Component {
public:
/**
* \brief BodyType enum
*
* This enum provides three bodytypes the physics sytem and collision system use.
*/
enum class BodyType {
//! Does not move (e.g. walls, ground ...)
STATIC,
//! Moves and responds to forces (e.g. player, physics objects ...)
DYNAMIC,
//! Moves but does not respond to forces (e.g. moving platforms ...)
KINEMATIC,
};
/**
* \brief PhysicsConstraints to constrain movement
*
* This struct configures the movement constraint for this object.
* If a constraint is enabled the systems will not move the object.
*/
struct PhysicsConstraints {
//! X constraint
bool x = 0;
//! Y constraint
bool y = 0;
//! rotation constraint
bool rotation = 0;
};
public:
/**
* This struct holds the data for the Rigidbody.
*/
struct RigidbodyData{
//! objects mass
double mass = 0.0;
//! gravtiy scale
double gravity_scale = 0.0;
//! Changes if physics apply
BodyType body_type = BodyType::DYNAMIC;
//! linear velocity of object
Vector2 linear_velocity;
//! maximum linear velocity of object
Vector2 max_linear_velocity;
//! linear damping of object
Vector2 linear_damping;
//! angular velocity of object
double angular_velocity = 0.0;
//! max angular velocity of object
double max_angular_velocity = 0.0;
//! angular damping of object
double angular_damping = 0.0;
//! movements constraints of object
PhysicsConstraints constraints;
//! if gravity applies
bool use_gravity = true;
//! if object bounces
bool bounce = false;
};
public:
/**
* \param game_object_id id of the gameobject the rigibody is added to.
* \param data struct to configure the rigidbody.
*/
Rigidbody(uint32_t game_object_id,const RigidbodyData& data);
//! struct to hold data of rigidbody
RigidbodyData data;
public:
/**
* \brief add a linear force to the Rigidbody.
*
* \param force Vector2 that is added to the linear force.
*/
void add_force_linear(const Vector2 & force);
/**
* \brief add a angular force to the Rigidbody.
*
* \param force Vector2 that is added to the angular force.
*/
void add_force_angular(double force);
};
} // namespace crepe
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