added physics system

1 files changed, 86 insertions, 16 deletions

diff --git a/src/crepe/api/Rigidbody.h b/src/crepe/api/Rigidbody.h
index 02ced2e..0c069d8 100644
--- a/src/crepe/api/Rigidbody.h
+++ b/src/crepe/api/Rigidbody.h
@@ -4,26 +4,96 @@
 
 #include "../Component.h"
 
-namespace crepe {
+#include "Vector2.h"
 
-// FIXME: can't this enum be defined inside the class declaration of Rigidbody?
-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,
-};
+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:
-	Rigidbody(game_object_id_t id, int mass, int gravity_scale, BodyType body_type);
-	int32_t velocity_x;
-	int32_t velocity_y;
-	int mass;
-	int gravity_scale;
-	BodyType body_type;
+	/**
+	 * \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