+ flags = plchr[i].pl_flags;
+ accepted_flags = P_V | P_K | P_L;
+ if (flags & P_M) {
+ /* missile */
+ accepted_flags |= P_M | P_E;
+ if (flags & P_N)
+ accepted_flags |= P_N;
+ else if (flags & P_O)
+ accepted_flags |= P_O;
+ else if (flags & P_F)
+ accepted_flags |= P_F;
+ else
+ accepted_flags |= P_T | P_MAR;
+ if (!(flags & P_V)) {
+ verify_fail(EF_PLANE_CHR, i, NULL, 0,
+ "flag %s requires flag %s",
+ symbol_by_value(P_M, plane_chr_flags),
+ symbol_by_value(P_V, plane_chr_flags));
+ retval = -1;
+ }
+ } else if (flags & P_O) {
+ /* satellite */
+ accepted_flags |= P_O | P_S | P_I;
+ } else {
+ /* plane */
+ accepted_flags |= P_B | P_T | P_F | P_C | P_S | P_I | P_A | P_P
+ | P_ESC | P_MINE | P_SWEEP;
+ if ((flags & (P_P | P_C)) == P_P) {
+ verify_fail(EF_PLANE_CHR, i, NULL, 0,
+ "flag %s requires flag %s",
+ symbol_by_value(P_P, plane_chr_flags),
+ symbol_by_value(P_C, plane_chr_flags));
+ retval = -1;
+ }
+ }
+ if (flags & ~accepted_flags) {
+ symbol_set_fmt(buf, sizeof(buf), flags & ~accepted_flags,
+ plane_chr_flags, ", ", 1);