blocked on some minor development.

Pete Mack · January 22, 2020, 06:19

I was trying to get my hand back in to coding for angband.

I am trying to implement this:
http://angband.oook.cz/forum/showpos...5&postcount=16

but i am blocked by this:
https://github.com/angband/angband/issues/4260
Note: see my final comment on what confuses me: why does each element_info record have an associated bitflag???

Nick, can you explain how element_info is actually used, so i can finish this? It is a pretty easy problem otherwise.

Nick · January 22, 2020, 12:28

The bitflag field is for recording how the item itself reacts to the element - so it can contain the EL_INFO_HATES flag if the element can destroy it, or the EL_INFO_IGNORE flag if the element can't destroy it. The HATES flag is assigned to object bases (tvals), and then the IGNORE flag can be applied to exceptions.

Pete Mack · January 22, 2020, 12:55

thanks much. Adding a comment to this effect. Also: if the object gets a random resist, shouldn't it also get set to
obj-init.c:356,362

Code:

    obj_info[effect].flags |= EL_INFO_RESIST | EL_INFO_RANDOM;

not just:

Code:

    obj_info[effect].flags |=  EL_INFO_RANDOM;

That is, it should resist the element if it has a resistance from any source.

Nick · January 22, 2020, 13:10

Quote:

Originally Posted by Pete Mack

thanks much. Adding a comment to this effect. Also: if the object gets a random resist, shouldn't it also get set to
obj-init.c:356,362

Code:

    obj_info[effect].flags |= EL_INFO_RESIST | EL_INFO_RANDOM;

not just:

Code:

    obj_info[effect].flags |=  EL_INFO_RANDOM;

That is, it should resist the element if it has a resistance from any source.

No, the actual resist is handled by the res_level field (1 being single resist, 3 immunity). Some of the reason for the way this stuff is structured is to allow for use in variants with more resistance levels than V.

Pete Mack · January 22, 2020, 13:20

Sure, but as written, the object can get destroyed by an element if it has a random resist, but not if it has a default resist. Or that is what it looks like.

Nick · January 22, 2020, 21:27

Quote:

Originally Posted by Pete Mack

Sure, but as written, the object can get destroyed by an element if it has a random resist, but not if it has a default resist. Or that is what it looks like.

Oh, I get it. Yes it should. Bug filed.

January 22, 2020, 06:19	#1
Pete Mack Prophet Join Date: Apr 2007 Location: Seattle, WA Posts: 5,985 Donated: $40	blocked on some minor development. I was trying to get my hand back in to coding for angband. I am trying to implement this: http://angband.oook.cz/forum/showpos...5&postcount=16 but i am blocked by this: https://github.com/angband/angband/issues/4260 Note: see my final comment on what confuses me: why does each element_info record have an associated bitflag??? Nick, can you explain how element_info is actually used, so i can finish this? It is a pretty easy problem otherwise.

January 22, 2020, 12:28	#2
Nick Vanilla maintainer Join Date: Apr 2007 Location: Canberra, Australia Age: 55 Posts: 8,657 Donated: $60	The bitflag field is for recording how the item itself reacts to the element - so it can contain the EL_INFO_HATES flag if the element can destroy it, or the EL_INFO_IGNORE flag if the element can't destroy it. The HATES flag is assigned to object bases (tvals), and then the IGNORE flag can be applied to exceptions. __________________ One for the Dark Lord on his dark throne In the Land of Mordor where the Shadows lie.

January 22, 2020, 12:55	#3
Pete Mack Prophet Join Date: Apr 2007 Location: Seattle, WA Posts: 5,985 Donated: $40	thanks much. Adding a comment to this effect. Also: if the object gets a random resist, shouldn't it also get set to obj-init.c:356,362 Code: obj_info[effect].flags \|= EL_INFO_RESIST \| EL_INFO_RANDOM; not just: Code: obj_info[effect].flags \|= EL_INFO_RANDOM; That is, it should resist the element if it has a resistance from any source.

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January 22, 2020, 13:20	#5
Pete Mack Prophet Join Date: Apr 2007 Location: Seattle, WA Posts: 5,985 Donated: $40	Sure, but as written, the object can get destroyed by an element if it has a random resist, but not if it has a default resist. Or that is what it looks like.

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