On making a homing rocket launcher

[Retraux Squid]

I'm aiming to make a DECORATE-based alt-fire for the vanilla rocket launcher featuring weaker missiles homing in on the crosshair (this mode toggled on and off by right-clicking) but I'm at a loss as to how I'd go about programming the weapon to fire a missile following the crosshair itself. Any pointers to get me on the right track? Thanks!

[ramon.dexter]

I think this cannot be achieved by decorate only.
Maybe only by zscript, but decorate will need the help of acs, since it lacks many crucial functions.

[kodi]

You can do this in decorate only if you want to I think. Shoot a puff with a bullet attack. The puff calls A_TransferPointer to set itself as the player's Tracer or Master. Then fire a missile right after. The missile uses the same function to set its Target's Tracer/Master as it's own Tracer, and then you can do the usual seeker missile stuff. Should work, as ugly as it is.

[Ravick]

You can do this in decorate only if you want to I think. Shoot a puff with a bullet attack. The puff calls A_TransferPointer to set itself as the player's Tracer or Master. Then fire a missile right after. The missile uses the same function to set its Target's Tracer/Master as it's own Tracer, and then you can do the usual seeker missile stuff. Should work, as ugly as it is.

If ACS is allowed, you could also give a TID to the puff, and order the missile to attack it.

[Amuscaria]

You can do this in decorate only if you want to I think. Shoot a puff with a bullet attack. The puff calls A_TransferPointer to set itself as the player's Tracer or Master. Then fire a missile right after. The missile uses the same function to set its Target's Tracer/Master as it's own Tracer, and then you can do the usual seeker missile stuff. Should work, as ugly as it is.

I think Ghastly made something like this a while ago for Strife, IRC.

[Matt]

If ACS is allowed, you could also give a TID to the puff, and order the missile to attack it.

This sounds like a plan.

Weapon: fires missile

Missile: continually points towards the first actor it is aware of with TID 99000 (plus playernumber)

Weapon: continually shoots hitscans that do no damage and spawn invisible puffs

Puffs: assign themselves TID 99000 (plus target's playernumber), last a couple tics and go away

[insightguy]

Puffs: assign themselves TID 99000 (plus target's playernumber), last a couple tics and go away

[/quote]

I just realized, if a monster where to, say, have a continuous hitscan attack that produces a puff with the same TID, is it possible to have a sort of looney toons back and forth with a rocket?

[Matt]

Tbh I have no idea, I just assumed it would pick the first one and stick with it.

[Ravick]

I guess it won't be a problem. It was basically what I've done for the flashlight's light beam in Mindfuck in order to it to troll lost souls: https://www.youtube.com/watch?v=bQkRq9qKiEI (I'm not "embedding" the video to avoid waste people's bandwidth and stuff.)