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    Nuclear thread - can we go ballistic?

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    • JipJ Offline
      Jip
      last edited by

      That discussion got kickstarted again with this:

      • https://github.com/FAForever/fa/pull/5369

      If someone with some background knowledge on missile guidance and trajectories (ahem) was given a little flexibility to shift things around* we could knock out both at the same time.

      I don't think we need someone like that. It is just a matter of setting the correct turn rate at the right time and call it a day. That's how it has worked for 13 years now 🙂

      A work of art is never finished, merely abandoned

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      • C Offline
        CocaineDiesel
        last edited by CocaineDiesel

        Yes, I should correct and say that tactical missiles are simple. Putting a good looking trajectory on strategic missiles is a little more involved, though I brought up Astro Crater because even slight changes to TM trajectory might change the safe areas there (not that I'm chomping at the bit to work around Crater--can't whoever made the map to begin with make another one in five minutes?).

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        • B Offline
          brainstormer @Jip
          last edited by

          @jip said in Nuclear thread - can we go ballistic?:

          It can both be implemented, but a parabola trajectory is not recommended. it means that intermediate SMDs can not intercept the missile.

          What would an intermediate SMD be?

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          • FtXCommandoF Offline
            FtXCommando
            last edited by

            SMD that intercepts an SML without actually having the intended target within its intended range.

            1 Reply Last reply Reply Quote 1
            • BlackYpsB Offline
              BlackYps
              last edited by

              A ballistic parabola only makes sense for unpropelled missiles, but the nuke obviously burns the whole time. It's more like a guided cruise missile.

              The 90 degree turn is to avoid terrain collisions, but I guess we could increase the turn radius, so it looks a bit smoother

              C B 2 Replies Last reply Reply Quote 1
              • maudlin27M Offline
                maudlin27
                last edited by maudlin27

                Re point 2, for me this is one of those areas where what's fun/intuitive in a game trumps what might be the technically more realistic approach. If I launch a big missile at a target, I expect the missile to explode on impact, not to explode in the air above the target.

                M27AI and M28AI developer; Devlogs and more general AI development guide:
                https://forum.faforever.com/topic/2373/ai-development-guide-and-m27ai-v71-devlog
                https://forum.faforever.com/topic/5331/m28ai-devlog-v130

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                • C Offline
                  CocaineDiesel @BlackYps
                  last edited by CocaineDiesel

                  @blackyps

                  I suspect the current in-game behavior of strat missiles is a result of what was easiest/fastest to implement at the time, while their form and function is very clearly modeled on ICBMs.

                  I'm indifferent on ground vs. air burst (and therefore inclined to the status quo) as the real-life lore behind it has no relevance to the sim, unlike trajectory.

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                  • BlackYpsB Offline
                    BlackYps
                    last edited by

                    how is their function modelled on ICBMs when their range is 80km and they burn the whole flight time?

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                    • C Offline
                      CocaineDiesel
                      last edited by

                      Range is actually 390.625 km (read as: infinite, within the scope of the game).

                      "Burn" gets realll fuzzy real quick, because only acceleration is modeled. But given that the missile goes into space (as in, higher than a satellite) and maintains a constant speed, we can surmise that it's not under thrust despite what the flames coming out the back would suggest.

                      But man I really don't think "nuclear tipped strategic missile vertically launched from a hardened silo is modeled on an ICBM" is the sticking point in this conversation. Do we need to go house to house on this?

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                      • BlackYpsB Offline
                        BlackYps
                        last edited by

                        The complaint was that there was no balistic parabola, which only makes sense if there is no trust.

                        we can surmise that it's not under thrust despite what the flames coming out the back would suggest.

                        Uhhh, yeah I think we can all agree that the notion of things being in space or not falls apart quite a bit in this game. The satellite for example is obviously lower than it should be, because keeping it to scale would be way too clunky to use.
                        I think it extrapolates to the nuke. The devs designed what they thought looked cool, and I am somewhat confident that the flight path was a pragmatic decision to allow intercepting of the nuke during the complete flight while also being sure to avoid terrain

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                        • C Offline
                          CocaineDiesel
                          last edited by

                          My original statement was that a ballistic trajectory would be cool. As previously mentioned it's trivial to modify SMD to intercept missiles at an arbitrary height. Let's agree to disagree on the rest of it.

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                          • BlackYpsB Offline
                            BlackYps
                            last edited by

                            Agreed

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                            • C Offline
                              CocaineDiesel
                              last edited by

                              Hot fact: SMD will already intercept a nuke of any height. There's something weird with the targeting code (relies on OnGotTarget, somehow), but it'll do it. Only side effect of shooting at a nuke at a ridiculous altitude is that you waste any extra missiles in the SMD silo because the first one takes so long to connect and the SMD keeps shooting until it does.

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                              • F Offline
                                FunkOff
                                last edited by FunkOff

                                I am as knowledgeable and interested in missiles as anybody, but I think the FAF nuke is fine as it is. The main problem with parabolic trajectories is that shots are hard to see when they fly that high, as in the case of T3 artillery and Mavors. The current nuke behavior is theatric rather than true to life. The same is true for the slow decent of the missile over its target. In real life, nuclear warheads approach targets at speeds exceeding mach 5. In Faf terms, that's almost a beam weapon.

                                Then there's the balance problem: Nukes are balanced against bases, because nukes are slow, but bases can't move. Obviously, a realistic fast nuke would change quite a lot about balance and would greatly favor ACU snipes.

                                Tldr: it's not realistic as it is, but it's fine

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                                • B Offline
                                  brainstormer @BlackYps
                                  last edited by

                                  @blackyps said in Nuclear thread - can we go ballistic?:

                                  A ballistic parabola only makes sense for unpropelled missiles, but the nuke obviously burns the whole time. It's more like a guided cruise missile.

                                  The 90 degree turn is to avoid terrain collisions, but I guess we could increase the turn radius, so it looks a bit smoother

                                  I think a turn radius increase is a viable option, if admins are willing to change anything at all.

                                  @slicknixon said in Nuclear thread - can we go ballistic?:

                                  @blackyps

                                  I'm indifferent on ground vs. air burst (and therefore inclined to the status quo) as the real-life lore behind it has no relevance to the sim, unlike trajectory.

                                  I would disagree, as the nuke is a superweapon, okay not generally an ICBM, but rather like a real world very powerful tactical nuke, in our sim and not a single projectile aimed at a certain unit or a point of area, and in terms of a superweapon it should act like one e.g. explosion in air for maximum devastation, and a parabolic, or at least have a greater radius, delivery in order to minimize chances of taking it down.

                                  C 1 Reply Last reply Reply Quote 0
                                  • FtXCommandoF Offline
                                    FtXCommando
                                    last edited by

                                    Nukes don't need a buff by blowing up 5 seconds earlier.

                                    B 1 Reply Last reply Reply Quote 0
                                    • C Offline
                                      CocaineDiesel @brainstormer
                                      last edited by

                                      @brainstormer

                                      It's optimal for bombs of all sizes to explode a given distance above the ground, it's not just limited to strategic weapons. But it doesn't matter at all in-game because the ground isn't absorbing all that energy/fragmentation you would otherwise be throwing into the surrounding area.

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                                      • veteranasheV Offline
                                        veteranashe
                                        last edited by

                                        Would be nice to select the nuje and Ctrl k it in flight, could airburst add or something

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                                        • TheVVheelboyT Offline
                                          TheVVheelboy
                                          last edited by

                                          Y-yeah. We need more ways to fuck the air player in random ass ways. It's not enough that you can ctrlk below asf to win airfight or just fly a flippin transport into enemy air.

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                                          • R Offline
                                            RedX @Jip
                                            last edited by

                                            @jip said in Nuclear thread - can we go ballistic?:

                                            It can both be implemented, but a parabola trajectory is not recommended. it means that intermediate SMDs can not intercept the missile.

                                            Why would a ballistic parabola inherently mean that a missile could not be intercepted?

                                            TheVVheelboyT 1 Reply Last reply Reply Quote 0
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