The "How do I..." Thread

[Reactor]

So the "glass" can be textured as well, not just a single color! Great! That's nice for a start!

[Sgt Dopey]

How do I change the current weapon bob to the one in alpha doom in game and in decorate

[ReedtheStrange]

+INVENTORY.UNTOSSABLE

GZdoom 1.5.6 doesn't recognize the flag. Which versions does it work on?

[amv2k9]

+INVENTORY.UNTOSSABLE

GZdoom 1.5.6 doesn't recognize the flag. Which versions does it work on?

A version much...
much...
much...
much...
much newer than that.

[Xtyfe]

I am creating a laser effect that shoot from a BFG projectile based on this example. While it works fine being shot from the player, if I have it shot from a monster then the lasers end up shooting the the monster who fired it/other monsters and not the player.

anyone willing to take a look?

Code: Select all

Actor XtBFGBall replaces BFGBall
{
PROJECTILE
+FORCEXYBILLBOARD
+EXPLODEONWATER
+BLOODSPLATTER
//+TELESTOMP
//-NOTELEPORT
RenderStyle Add
Alpha 0.75
//Radius 10
Radius 13
Height 8
//Height 10
Speed 25
Damage (0)
Decal "BFGLightning"
Obituary "$OB_MPBFG_BOOM"
States
	{
	Spawn:
		TNT1 A 0
		TNT1 A 0 A_PlaySound ("weapons/bfgloop", 6, 1, 1)
		TNT1 A 0 A_SpawnItemEx ("XtBFGLaserSpawner", 0, 0, 0, 0, 0, 0, 0, SXF_TRANSFERPOINTERS)
		BFGB AB 3 Bright
		TNT1 A 0 A_SpawnItemEx ("XtBFGLaserSpawner", 0, 0, 0, 0, 0, 0, 0, SXF_TRANSFERPOINTERS)
		BFGB CD 3 Bright
		Loop
	Death:
		TNT1 A 0 A_StopSound (6)
		TNT1 A 0 A_PlaySound ("weapons/bfgx", CHAN_BODY, 1, 0)
		BFE1 A 4 Bright A_Explode (200, 256, 1, 1, 64)
		BFE1 BCDEF 4 Bright
		Stop
	}
}

Actor XtBFGLaserSpawner
{
PROJECTILE
+SEEKERMISSILE
+THRUACTORS
+STEPMISSILE
Radius 1
Height 1
Speed 1
States
	{
	Spawn:
		TNT1 A 0
		TNT1 A 0 A_SeekerMissile (90, 90, SMF_LOOK|SMF_PRECISE, 256, 512)
		TNT1 A 0 A_JumpIfTargetInLOS ("Railer", 0, JLOSF_PROJECTILE)
		Stop
	Railer:
		TNT1 A 0 A_RearrangePointers (AAPTR_DEFAULT, AAPTR_DEFAULT, AAPTR_PLAYER_GETTARGET|AAPTR_TRACER, 4)
		TNT1 A 0 A_FaceTracer
		TNT1 A 0 A_CustomRailgun (20, 0, 0, 0, RGF_SILENT|RGF_NOPIERCING, 0, 0, "XtBFGLaserPuff", 0, 0, 0, 0, 1.0, 1.0, "XtBFGLaser")
		Stop
	}
}

Actor XtBFGLaser
{
+NOBLOCKMAP
+NOTELEPORT
+NOGRAVITY
RenderStyle Add
Alpha 0.25
Scale 0.5
Height 1
Radius 1
States
	{
	Spawn:
		BFGS ABCDE 4 Bright
		Stop
	}
}

Actor XtBFGLaserPuff
{
+NOBLOCKMAP
+NOTELEPORT
+NOGRAVITY
+ALWAYSPUFF
+NOEXTREMEDEATH
Alpha 0.25
Scale 0.5
States
	{
	Spawn:
		TFOG BABACBCBDCDCDEDEDFEFE 1 Bright
		Stop
	}
}

Actor XtSpiderBFGBall : XtBFGBall
{
FastSpeed 35
States
	{
	Spawn:
		TNT1 A 0
		TNT1 A 0 A_PlaySound ("weapons/bfgloop", 6, 1, 1)
		TNT1 A 0 A_SpawnItemEx ("XtSpiderBFGLaserSpawner", 0, 0, 0, 0, 0, 0, 0, SXF_TRANSFERPOINTERS)
		BFGB AB 3 Bright
		TNT1 A 0 A_SpawnItemEx ("XtSpiderBFGLaserSpawner", 0, 0, 0, 0, 0, 0, 0, SXF_TRANSFERPOINTERS)
		BFGB CD 3 Bright
		Loop
	}
}

Actor XtSpiderBFGLaserSpawner : XtBFGLaserSpawner
{
States
	{
	Railer:
		TNT1 A 0 A_FaceTracer
		TNT1 A 0 A_CustomRailgun (20, 0, 0, 0, RGF_SILENT|RGF_NOPIERCING, 0, 0, "XtBFGLaserPuff", 0, 0, 0, 0, 1.0, 1.0, "XtBFGLaser")
		Stop
	}
}

[HellCattX]

Just a quick question, is there any way to have the different player classes start in different map locations in single player maps?

[ChronoSeth]

You might be able to use the class-based thing filters for that. I know it can be made to work for skill levels using MAPINFO, but I've never tried it for classes.

[NightMare620]

How do I begin my very own zdoom wars faction wad, such as realm667?

[KPu3uC B Poccuu]

Code: Select all

InInventory InfectionMeter,1
{
	DrawBar "INFBAR1","INFBAR2",InfectionMeter,vertical,30,10;
}

Why this code just draws sprite of full infection bar regardless of infection player actually has. The sprites are defined in TEXTURES lump to scale them:

Code: Select all

sprite INFBAR1,64,78
{
	XScale	4.0
	YScale	4.0
	Offset	0,0
	Patch 	INFBARA,0,0
}
sprite INFBAR2,64,78
{
	XScale	4.0
	YScale	4.0
	Offset	0,0
	Patch 	INFBARB,0,0
}

Oh, I have another problem.

Code: Select all

function void Game_InfectPlayer(int playerTID)
{
	ThingSound(playerTID,"human/infected",127);
	GiveActorInventory(playerTID,"PowerTransformation",1);
	GiveActorInventory(playerTID,"TransformingSpeed",1);
	GiveActorInventory(playerTID,"InfectionHealthRestoring",1);
	ACS_ExecuteAlways(820,0,playerTID,PMS_TRANSFORMING);
	Human[playerTID-START_ID]=false;
	Infected[playerTID-START_ID]=true;
	Game_PlayerDead(playerTID);
	Game_DropInventory(playerTID);
	LastInfectedLeft=false;
	//Player_SetTeam(1);
}

This function works almost right but I can't see why TransformingSpeed powerup which is supposed to slowdown newly infected player for a short period of time isn't applied to him by it; it stay in infected player inventory but he still runs pretty fast . If I give myself this powerup via console then it works fine on me.

[Ravick]

Two questions:

1 - How do I suppress one of the difficult levels from the menu? Let's say, a mod that have no UV. Do I need to set all the skill levels again, except for this one?

2 - How do I make sin(30) return 0.5? It's returning some odd values that I can't understand.

Tanks in advance!

[cocka]

2 - How do I make sin(30) return 0.5? It's returning some odd values that I can't understand.

Well, that's a tricky one but you can write an acs script to convert a normal angle value which can be used by the sin function.

Normal angle = 30°

byte angle = 32/45 * normal angle

normal angle = 45/32 * byte angle

Code: Select all

script 3 (void)
{
int angle = 30.0;
int szorzo = FixedDiv(32.0, 45.0);
print(f: sin(FixedDiv(FixedMul(angle, szorzo), 256.0)));
}

Though the calculation is not really exact.

[ibm5155]

2 - How do I make sin(30) return 0.5? It's returning some odd values that I can't understand.

Well, that's a tricky one but you can write an acs script to convert a normal angle value which can be used by the sin function.

Normal angle = 30°

byte angle = 32/45 * normal angle

normal angle = 45/32 * byte angle

Code: Select all

script 3 (void)
{
int angle = 30.0;
int szorzo = FixedDiv(32.0, 45.0);
print(f: sin(FixedDiv(FixedMul(angle, szorzo), 256.0)));
}

Though the calculation is not really exact.

Dud thanks alot for that, i must need it for my oblique simulator \o/
and now i create a new function that do all that calculates automaticaly, so you just do seno(90) and it returns almost 1 \o/ thanks thanks thanks over and over xD

[Herculine]

I want to create a monster that has a random chance of self-destructing, but I don't wan't it to be tied to any action specials or scripted functions that would need to be added to a map. So far, this has worked almost exactly the way I want it to:

Code: Select all

TNT1 A 0 A_Jump(32,"Death")

The only problem is that some of the death state sprite frames repeat themselves though they shouldn't, making the monster look like it's almost dying and then getting back up. I'm assuming that this glitch is because the monster actually has some health left when the A_Jump kicks in.

Is there a way, using DECORATE, that I could cause the monster to drop to 0 health when the A_Jump causes the death animation to begin?

[Enjay]

[wiki]A_Die[/wiki] ?

[NeuralStunner]

Easy method:

Code: Select all

KillDead:
	TNT1 A 0 A_Die
Death:
	// Death animation