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#pragma once
#include "vtable.h"
#define NAME(X) \
static Vtable _vtable = {0}; \
__attribute__((constructor(101))) \
static void \
_register_vtable(void) \
{ \
_vtable.id = ++___vtable_i; \
if (___vtables == NULL) \
___vtables = &_vtable; \
else { \
Vtable *tail = ___vtables; \
while (tail->next != NULL) \
tail = tail->next; \
tail->next = &_vtable; \
} \
} \
SET(name, #X)
#define SET(x, X) \
__attribute__((constructor(102))) \
static void \
_set_##x(void) \
{ \
_vtable.x = X; \
}
#define IMPL(X) \
static void _##X(Entity *this); \
SET(X, _##X); \
static void \
_##X(Entity *this)
#define PARENT(X) SET(parent, #X)
#define INIT() IMPL(init)
#define DEINIT() IMPL(deinit)
#define DRAW() IMPL(draw)
#define UPDATE() IMPL(update)
#define SUPER(X) vtable_get(_vtable.parent)->X(this)
#define T this
#define G this->g
#define POS this->pos
#define DIM this->dim
#define VEL this->vel
#define REM this->rem
#define SQRT2 1.414214
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