Bug and Questions about curses

[bron]

Are curses supposed to be defendable ? For example, I'm wielding a object with the "it occasionally paralyzes you" curse. I also have Free Action. I occasionally gets a "your equipment grabs you!" message, but do not, in fact, get paralyzed. The question is, is that intended, i.e. the protection overcomes the curse? Or is the curse intended to overcome the protection ?

In this vein, I have observed a bug: I am wielding am object with the "occasionally makes you hallucinate" curse. Not only do I never hallucinate, but it actually has the opposite effect of protecting me against hallucination. For example, if I eat a Mushroom of Emergency, I get healed, but no hallucinations. If I remove the "cursed" object, and then eat the mushroom, the hallucinations come on as expected. I attach a savefile demonstrating this.

I'm still running v4.1.0

[Nick]

Are curses supposed to be defendable ? For example, I'm wielding a object with the "it occasionally paralyzes you" curse. I also have Free Action. I occasionally gets a "your equipment grabs you!" message, but do not, in fact, get paralyzed. The question is, is that intended, i.e. the protection overcomes the curse? Or is the curse intended to overcome the protection ?

In this case, it's intended that the protection overcomes the curse - which is not to say that there might not be a case where it doesn't.

In this vein, I have observed a bug: I am wielding am object with the "occasionally makes you hallucinate" curse. Not only do I never hallucinate, but it actually has the opposite effect of protecting me against hallucination. For example, if I eat a Mushroom of Emergency, I get healed, but no hallucinations. If I remove the "cursed" object, and then eat the mushroom, the hallucinations come on as expected. I attach a savefile demonstrating this.

I couldn't actually test this, I'm afraid, as I need your randart file as well. It does look like a bug - although if that item also has RChaos, that would explain it. Although probably things with that curse and RChaos shouldn't be generated, so it's still a bug.

[bron]

if that item also has RChaos, that would explain it.

Yes, the randart in question does indeed have RChaos.

So RChaos protects against hallucination from other sources as well?? I never knew that. I'm not complaining mind you, but it seems a bit inconsistent. For example, RSound protects you against Stunning due to sound attacks, but not Stunning due to other reasons.

[Nick]

So RChaos protects against hallucination from other sources as well?? I never knew that. I'm not complaining mind you, but it seems a bit inconsistent. For example, RSound protects you against Stunning due to sound attacks, but not Stunning due to other reasons.

IIRC RSound used to protect against any breath/spell stunning, until pStun was introduced. So I guess we could introduce a protection against hallucination and split it out from RChaos in the same way, but I think it would probably make both of them a bit too weak. Still, it's probably worth keeping in mind as a possibility.

[bron]

it's intended that the protection overcomes the curse

Thanks, Nick. That's very good to know. In particular, it turns the "paralysis" curse into almost a no-op, rather than certain death. Which is what I thought, but it's good to be sure.

So I guess the only (minor) issue here is that you probably shouldn't generate a randart that has both "hallucination curse" and RChaos.

[Nick]

So I guess the only (minor) issue here is that you probably shouldn't generate a randart that has both "hallucination curse" and RChaos.

Correct, and I have a fix for that in development.

[PowerWyrm]

Here are more redundant or conflicting cases:
- teleportation curse on an item with OF_NO_TELEPORT
- impair mana recovery curse on an item with OF_IMPAIR_MANA
- impair hitpoint recovery curse on an item with OF_IMPAIR_HP
- cowardice curse on an item with OF_AFRAID
- anti-teleportation curse on an item with OF_NO_TELEPORT

[Pete Mack]

Also electric immunity with Steelskin, etc.