CheckElementChangeExt(x, y, e, EL_EMPTY, ev, p, s)
#define CheckElementChangeBySide(x, y, e, te, ev, s) \
CheckElementChangeExt(x, y, e, te, ev, CH_PLAYER_ANY, s)
CheckElementChangeExt(x, y, e, EL_EMPTY, ev, p, s)
#define CheckElementChangeBySide(x, y, e, te, ev, s) \
CheckElementChangeExt(x, y, e, te, ev, CH_PLAYER_ANY, s)