A_Chase flag; wandering movement

[Ceeb]

I'm trying to make an enemy that acknowledges that it's chasing the player and should attack him, but wanders normally rather than chasing him, as if calling A_Wander. Can a flag be added to allow mindless wandering in A_Chase?

Edit:

I would suggest the name CHF_WANDER.

[NeuralStunner]

I like this idea. A monster could stop to shoot at the Player, but still move erratically (like the bats in those games ).

[Ceeb]

Yeah. This is meant for "friendly" marines who you can piss off, but they don't actively seek the player. Just shoot him on sight and keep on with their business.

[Caligari87]

A_Wander with 0-length A_Jump statements could fake it fairly well, I think.

Code: Select all

actor newzombie : zombieman replaces zombieman
{
  States
  {
  See:
    POSS AABB 4 A_Wander
    POSS CCDD 4 A_Wander
    TNT1 A 0 A_JumpIfTargetInLOS("Missile",360)
    loop
  Missile:
    TNT1 A 0 A_Jump(128,"See")
    POSS E 10 A_FaceTarget
    POSS F 8 A_PosAttack
    POSS E 8
    goto See
  }
}

Seems to work "okay".

[NeuralStunner]

One notable problem with that: It would be unaffected by MapInfo's ability to modify monster agressiveness.

[Ænima]

One notable problem with that: It would be unaffected by MapInfo's ability to modify monster agressiveness.

Does anybody actually make use of that anyways?

[Enjay]

Yes.

[NeuralStunner]

Does anybody actually make use of that anyways?

I do. It's awesome for increasing the difficulty without boosting the Health of monsters to ridiculous levels.

[The Ultimate DooMer]

I use it for skill settings.

[Ænima]

Okay then ... my bad.

[Cutmanmike]

code

Try this:

Code: Select all

actor newzombie : zombieman replaces zombieman
{
  States
  {
  See:
    POSS AABB 4 A_Wander
    TNT1 A 0 A_Chase
    TNT1 A 0 A_Stop
    POSS CCDD 4 A_Wander
    TNT1 A 0 A_Chase
    TNT1 A 0 A_Stop
    loop
  }
}

You may want to call A_Chase/A_Stop more often though because it may not be aggressive enough.

[Zippy]

Why the A_Stop calls? A_Chase has a CHF_DONTMOVE flag that will prevent the actor from moving.

[Cutmanmike]

Oh, that's even better then. Should make the code shorter. If only you could combine functions

[Ishiam]

I agree it would allow for much smoother movement.

[Ghastly]

Isham, quite a bump.

@Cutman: A_Stop wouldn't affect movement from A_Chase, since A_Chase movement is more akin to teleporting (it moves the actor's Speed every time it's called). Also, this would work better:

Code: Select all

  See:
    POSS A 0 A_Chase("", "Missile", 16)
    POSS A 4 A_Wander
    POSS A 0 A_Chase("", "Missile", 16)
    POSS A 4 A_Wander
    POSS B 0 A_Chase("", "Missile", 16)
    POSS B 4 A_Wander
    POSS B 0 A_Chase("", "Missile", 16)
    POSS B 4 A_Wander
    POSS C 0 A_Chase("", "Missile", 16)
    POSS C 4 A_Wander
    POSS C 0 A_Chase("", "Missile", 16)
    POSS C 4 A_Wander
    POSS D 0 A_Chase("", "Missile", 16)
    POSS D 4 A_Wander
    POSS D 0 A_Chase("", "Missile", 16)
    POSS D 4 A_Wander
    Loop

The 16 in the A_Chase is the CHF_DONTMOVE flag. This gives the wandering movement, but should attack as normal.