#ifndef ITER_H
#define ITER_H

#define FOREACH_ARRAY(arr, start, end, cond, body) do { \
    for (int i = start; i < end; ++i) {                 \
        const noref entity it = arr[i];                 \
        if (cond) { body }                              \
    }                                                   \
} while(0)

#define FOREACH_LIST(list, next, cond, body) do {               \
    noref int i = 0;                                            \
    for (entity it = list##_first; it; (it = it.next, ++i)) {   \
        if (cond) { body }                                      \
    }                                                           \
} while(0)

#define FOREACH(list, cond, body) FOREACH_LIST(list, enemy, cond, body)

#endif