fencer/src/physics_entity.h

40 lines
1.3 KiB
C

#ifndef _fencer_collidable_h
#define _fencer_collidable_h
#include "vmath.h"
#include "typeclass_helpers.h"
#include "rigidbody.h"
#include "shape.h"
typedef struct Collision Collision;
typedef struct {
RigidBody* (*const get_rigidbody)(void* self);
Shape* (*const get_shape)(void* self);
void(*const on_collision)(void* self, Collision collision);
} IPhysicsEntity;
typedef struct {
void* data;
IPhysicsEntity const* tc;
ITransformable const* transformable;
} PhysicsEntity;
#define impl_PhysicsEntity_for(T, get_rigidbody_f, get_shape_f, on_collision_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);\
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,\
};\
Transformable transformable = T##_as_Transformable(x);\
return (PhysicsEntity){.data = x, .tc = &tc, .transformable = transformable.tc};\
}
#endif // !_fencer_collidable_h