The "How do I..." Thread

[insightguy]

I want to make 3 episodes with each a different player with different stats and weapon set. how do I do that?

and how do i make a weapon stronger when your health is lower and take it away when your health is back like in order and chaos. A_jumpifhealth?

And how do I make weapons with powered up states last to the next level. or can this only be accomplished by A_Select weapon if the player has the upgrade in his invisible inventory?

[Vaecrius]

A_JumpIfHealthLower

[cypherphage]

Wait, a_checkInventory can't count "health"? That's weird, because it works in ACS:

Code: Select all • Expand view

script "getHealth" (void)
{   SetResultValue(CheckInventory("health"));
}

[Blue Shadow]

I think it's "safer" and better to use GetActorProperty/SetActorProperty with APROP_Health as the property to get/set instead.

[Kate]

CheckInventory will not return negative numbers, so using it to return health will always return 0 for dead things, therefore you cannot use it to figure out if a monster died extremely or not.

[cypherphage]

Fair enough, I didn't think about doing it that way.

Is there anyway to make a sector invisible on the textured automap? It's a cool feature, but when the player can see all of the boundary areas it ends up looking bad.

[Dancso]

Pretty sure there was a way to hide sectors from the automap, textured or not. I'm thinking a flag on the sector or its linedefs... the word "hidden" rings a bell.

[cypherphage]

That hides the lines, but it doesn't affect the sectors. I also tried adding a secret actor to the sector, and setting the lines secret, and setting the sector to secret...no affect.

*Edit: Apparently, 2.60 added special 195 which makes the sector hidden, and there is supposed to be UDMF flag to do the same.

[Reactor]

Okay, new question:

Is is possible for the enemy to add a "line" projectile attack? One of my levels - Lost in da Mist - will be an Easter Egg referring to the movie "The Mist", where you might know, there are lots of Trites attacking by shooting web strands. They will have melee attacks alright, yet, I would really love the Trites to shoot web strands like they did in the movie (to a limited distance of course). I wonder if it's possible to create a projectile which would act like their web in the movie. It would look like a long, light gray web which flies straight when the Trite attacks, and then slowly sinks to the ground. Can you give me some tips regarding to this Trite attack?

[amv2k9]

It would look like a long, light gray web which flies straight when the Trite attacks, and then slowly sinks to the ground. Can you give me some tips regarding to this Trite attack?

The projectile spawns bits which start off with +NOGRAVITY, then after x tics, remove that flag. The bits might need to be 16-angle sprites.

[Reactor]

Sounds reasonable. Can you show me a picture of a line which would correspond the Trite's web strand right after launch and a second line which shows the web strand while descending to the ground? This would be very helpful.

[zrrion the insect]

Is there a way to get A_GunFlash to draw the flash sprites below the weapon sprites, as opposed to on top of them?

[Ravick]

How do I block friendly monster like the regular ones? I know they do not obey the "block monsters" line flag, is there a way to change it?

[Arch]

Try using -NOBLOCKMONST Ravick.

[Ravick]

Thanks, Arch!

Oh, btw, what is the difference between "world" and "global" variables?