fencer/core/src/physics_entity.h
2023-11-20 12:04:55 +01:00

48 lines
1.7 KiB
C

#ifndef _fencer_collidable_h
#define _fencer_collidable_h
#include "vmath.h"
#include "typeclass_helpers.h"
#include "list.h"
#include "shape.h"
typedef struct Collision Collision;
typedef struct RigidBody RigidBody;
typedef struct {
RigidBody* (*const get_rigidbody)(void* self);
Shape* (*const get_shape)(void* self);
void(*const on_collision)(void* self, Collision collision);
void(*const collision_solver)(void* self, List* collisions);
} IPhysicsEntity;
typedef struct {
void* data;
IPhysicsEntity const* tc;
ITransformable const* transformable;
} PhysicsEntity;
extern void physics_entity_debug_draw(PhysicsEntity self);
extern void physics_entity_solve_contacts(PhysicsEntity self, List* contacts);
extern void physics_entity_update(PhysicsEntity self);
#define impl_PhysicsEntity_for(T, get_rigidbody_f, get_shape_f, on_collision_f, collision_solver_f)\
static inline PhysicsEntity T##_as_PhysicsEntity(T* x) {\
TC_FN_TYPECHECK(Transformable, T##_as_Transformable, T*);\
TC_FN_TYPECHECK(RigidBody*, get_rigidbody_f, T*);\
TC_FN_TYPECHECK(Shape*, get_shape_f, T*);\
TC_FN_TYPECHECK(void, on_collision_f, T*, Collision);\
TC_FN_TYPECHECK(void, collision_solver_f, T*, List*);\
static IPhysicsEntity const tc = {\
.get_rigidbody = (RigidBody*(*const)(void*)) get_rigidbody_f,\
.get_shape = (Shape*(*const)(void*)) get_shape_f,\
.on_collision = (void(*const)(void*,Collision)) on_collision_f,\
.collision_solver = (void(*const)(void*,List*)) collision_solver_f,\
};\
Transformable transformable = T##_as_Transformable(x);\
return (PhysicsEntity){.data = x, .tc = &tc, .transformable = transformable.tc};\
}
#endif // !_fencer_collidable_h