Ranged buff skips instances that are not available to creature

[Loobinex]

Hopefully fixes this crash that sometimes happens even though I have no active ranged-buff spells:

Sync: [400] creature_explore_dungeon: The creature FLY owned by player 0 can't navigate to subtile (22,178) for exploring
=== Crash ===
Error: Attempt of integer division by zero.
[#15] keeperfx.exe : search_target_ranged_heal            [0x48b970+0xbd]     map lookup for: 0023:0014ba2d, base: 000c0000
[#14] keeperfx.exe : process_creature_ranged_buff_spell_casting [0x48d7d0+0xfc]     map lookup for: 0023:0014d8cc, base: 000c0000
[#13] keeperfx.exe : update_creature                      [0x5c5cc0+0x528]     map lookup for: 0023:002861e8, base: 000c0000

[Loobinex]

I found out I do in fact have a creature on the map with ranged abilities, which would explain the crash.
Evan, still a good idea to check here, or do you think it would not make sense?

[Linvail]

The only division used in search_target_ranged_heal() is to dividing max_health, which is not supposed to be zero.
If the max_health is zero, some bugs occurs elsewhere.

[Loobinex]

The only division used in search_target_ranged_heal() is to dividing max_health, which is not supposed to be zero. If the max_health is zero, some bugs occurs elsewhere.

This would occur when you place a custom creature on a map that the game does not recognize. (So, creature type ID 33 on a map with 32 creature type IDs).