The "How do I..." Thread

[Nevander]

What Textures YScale value should I use to avoid the 20% pixel ratio for a single graphic?

I'd love to know this too so I can void the 20% "adjustment" and keep the graphics and sprites as they appear in the source.

Just a guess, but maybe YScale 1.2 would do it?

EDIT: This worked for me, the offsets of course will change but this is the concept. I had to add 34 more to the Y offset to get the weapon to be at the bottom of the screen if you are not using a standard status bar.

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Sprite PISGA0, 56, 87
{
	YScale 1.2
	Offset -125, -115
	Patch PISGA0, 0, 0
}

[YukiHerz]

Thanks, that works.

[Alekv]

Tell me, what is the probability that KEYSONF add if{..}?
Like this:

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AddMenuKey "Jump" +JumpUp
Alias +JumpUp "if (myInventoryItem == 1) { +Jump;}"
Alias -JumpUp " -Jump; if(MyInventoryItem == 0){ Pukename \"JumpOff\";}"
DefaultBind kp2 +JumpUp

Well, really very need this feature

[Gez]

KEYCONF just lets you run [wiki]console commands[/wiki], nothing more complex. You might be able to do what you want with the test command; then you just need to find a way to get the inventory count as an expression you can evaluate in the console. Having a custom [wiki]console variable[/wiki] (defined with [wiki]CVARINFO[/wiki]) and a script that every tic checks the player's inventory for that item and set the console variable to true or false could do the trick.

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Alias +JumpUp "test custom_jumpitem +Jump"
Alias -JumpUp " -Jump; test custom_jumpitem ; Pukename \"JumpOff\""

This might work. (I'm not sure ; is a valid "nop" instruction.)

[Alekv]

Thank for respons.
The condition I need for that would block a specific button.
For example the player has pressed the jump button is activated keyconf alias.
alias starts run in my script and command "+ jump". And if I need that would only run the script, and the command "+ jump" did not work, the "if" conditions come in handy.
This is just an example why do I need it.

[Gez]

There's no possibility of instruction blocks, console commands are very limited in their syntax. Keep in mind it's meant to be just commands typed line after line in the console; not programs. There's even a limit to how long they can be (255 characters).

However, you can use aliases to make functions, and you can use test to perform conditional execution. That's how far you can go, no further.


If you need more, you'll have to use real scripting. Until ZScript is complete, you can try to look in ACS's [wiki]GetPlayerInput[/wiki] feature, which can intercept jump.

[DoomKrakken]

How do I make a monster go slower when it receives a CustomInventory item?

I have an explosive ice attack, and I want it to temporarily slow down monsters. Maybe by doubling their tic durations or something like that. Is this at all possible?

[Gothic]

You can do that with custom damage types and pain states. Here's an example:

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Actor StunnedImp : DoomImp replaces DoomImp
{
States
{
See:
	TNT1 A 0 A_JumpIfInventory("SlowDownPowerUp",1,"SlowWalk")
	TROO AABBCCDD 3 A_Chase
	Loop
SlowWalk:
	TROO AABBCCDD 6 A_Chase
	Goto See
Melee:
Missile:
	TNT1 A 0 A_JumpIfInventory("SlowDownPowerUp",1,"SlowAttack")
	TROO EF 8 A_FaceTarget
	TROO G 6 A_TroopAttack 
	Goto See
SlowAttack:
	TROO EEFF 8 A_FaceTarget
	TROO G 12 A_TroopAttack 
	Goto See
Pain:
	TNT1 A 0 A_JumpIfInventory("SlowDownPowerUp",1,"SlowPain")
	TROO H 2
	TROO H 2 A_Pain
	Goto See
Pain.SlowDown:
	TNT1 A 0 A_GiveInventory("SlowDownPowerUp")
SlowPain:
	TROO H 4
	TROO H 4 A_Pain
	Goto See
}
}

Actor RetardantRocket : Rocket replaces Rocket
{
Damage 1 //Reduced so they don't die instantly
DamageType "SlowDown"
States
{
Death:
	MISL B 8 Bright A_Explode(1,128) //Same
	MISL C 6 Bright
	MISL D 4 Bright
	Stop
}
}

Actor SlowDownPowerUp : Powerup
{
Powerup.Duration -15
}

The custom rocket has a special damagetype ("slowdown") that makes the imps acquire a "powerup" so they can enter on custom states. This powerup only lasts 15 seconds.

[DoomKrakken]

Thanks for the explanation, but I was trying to avoid that altogether.

I wasn't clear before... I was looking to see if there was a way to do it via CustomInventory item without needing to change the code in the monsters themselves. Was there a function already made that would do this?

P.S.: My preferred method for giving monsters CustomInventory items is via [wiki]A_RadiusGive[/wiki], with the RGF_MONSTERS flag included.

[D2JK]

I decided to make a custom CVar for quicker adjusting of certain values on weapons, monsters, etc. It works fine and I can always open the console to modify this value, but is it possible to make keybinds to increment/decrement this value for me?

For example, in Quake Live I could do: "bind mwheelup cvaradd m_sensitivity .01". Is there anything similar in ZDoom?

[Zan]

Hey, guys, anyone knows how to make the screen sway/shake when using a weapon?
I am working on an axe, and wanted to give it more feel when you swing it.

I remember the dizziness effect caused by spiders in Blood, which used to tilt your view, does GZDoom have a similar feature?

[Gothic]

Ok so I have a set of weapons that damage the player when you shoot them, similar to the Sigil, using this script

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Script "BloodPay" (int damage)
{
	Thing_Damage2(0,damage,"Suicide");
}

And the weapons use this function

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ACS_NamedExecute("BloodPay",0,damage)

The ammounts of damage are 2,3 and 4 for these weapons. However when I grab a QuadDamage powerup they deal 4 times the damage amount, and I want to avoid that, so my questions are:

-How can I make this script not to be affected by the QuadDamage powerup? (This is the one that interest me most)
-How can I make them deal the same ammount of damage with and without armor?
-Is there any way to damage the player without making pain sounds (similar to the PAINLESS flag for a projectile)?

[DoomKrakken]

Where can I get a compiled build of ACC that is compatible with KILL scripts?

[Blue Shadow]

-How can I make this script not to be affected by the QuadDamage powerup? (This is the one that interest me most)
-How can I make them deal the same ammount of damage with and without armor?
-Is there any way to damage the player without making pain sounds (similar to the PAINLESS flag for a projectile)?

Instead of calling an ACS script, use [wiki]A_DamageSelf[/wiki] like this:

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A_DamageSelf(<damage>, "Suicide", DMSS_NOPROTECT | DMSS_NOFACTOR, "None", "None", AAPTR_NULL, AAPTR_NULL)

That should solve issue #1 and #2.

For #3, you need to modifiy the player actor by adding this:

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PainChance "Suicide", 0

Where can I get a compiled build of ACC that is compatible with KILL scripts?

Apart from compiling one yourself, you can get it from GZDoom Builder.

[DoomKrakken]

I haven't the slightest clue how to compile it myself. Not to mention, when I try to get it from the latest build of GZDoom Builder, it still gives me the same error... that it hadn't compiled correctly.