Internally, the last argument to neartag is now a pointer to a function
int32_t (*blacklist_sprite_func)(int32_t i),
which is supposed to return 1 if sprite[i] should NOT be considered for hitting.
This is now used in the hard-coded neartag() calls in sector.c, but not in any
way in CON (there's neither a C blacklist function provided, nor is there a
possibility to define one in CON). There, all sprites with picnums >=1 and <=10
(i.e. the effectors) will be blacklisted. This remedies problems where such
sprites would get in the way of switches.
Note that a whitelist approach (only consider a predefined set, namely those
picnums which will be checked afterwards) has back-compatibility implications
since people may have used e.g. lotagged window sprites to cover a switch.
Also, the >=1 to <=10 range is [sic] (the static, not dynamic values are used),
since anyone redefining effector picnums is clearly out of their mind.
git-svn-id: https://svn.eduke32.com/eduke32@2373 1a8010ca-5511-0410-912e-c29ae57300e0
80bd1bb4e4