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    Homing projectile vs multiple targets

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    • Aidan_FireA
      Aidan_Fire @bosswave
      last edited by

      @bosswave Press here:816E405B-5DD1-4F6F-8801-72249AB86517.jpeg

      Jack8680J 1 Reply Last reply Reply Quote 0
      • Jack8680J
        Jack8680 @Aidan_Fire
        last edited by

        @Aidan-Oxley Really all you need to do is loop through a list of targets and keep track of which one is closest, no? Rather than sorting the whole array.

        Aidan_FireA 1 Reply Last reply Reply Quote 1
        • Aidan_FireA
          Aidan_Fire @Jack8680
          last edited by Aidan_Fire

          @Jack8680 Yeah but that takes more behaviours :P need another box container to keep the minimum value, then get the minimum value every loop.

          EDIT: actually Jack's idea is more efficient and probably takes same amount of behaviours, and makes me wonder why I did it the way I did in the first place.

          1 Reply Last reply Reply Quote 0
          • SplitMindGamingS
            SplitMindGaming @bosswave
            last edited by

            @bosswave you mentioned you want it to look at a group of spawned objects. Are these objects constantly spawning or do they spawn in once.

            Aidan_FireA 1 Reply Last reply Reply Quote 0
            • Aidan_FireA
              Aidan_Fire @SplitMindGaming
              last edited by

              @SplitMindGaming Doesn't matter. When the missile spawns or the homing logic is triggered, it will look at all objects that currently exist with the tag "target".

              Jack8680J 1 Reply Last reply Reply Quote 0
              • Jack8680J
                Jack8680 @Aidan_Fire
                last edited by

                @Aidan-Oxley We think in different ways when making something like this lol.

                1 Reply Last reply Reply Quote 0
                • SplitMindGamingS
                  SplitMindGaming @bosswave
                  last edited by

                  @bosswave here’s my ghetto way of doing it. It doesn’t use arrays. Very simple logic really. But this only works assuming you already spawned in your objects. You can always just already have the objects spawned in but hidden away far off screen. Then have certain events move that object to scene when you want it. You will notice that this method does work and it will follow the closest square that’s next to it. So go ahead move each square next to the missile and it will follow the closest one. Maybe this can be a temporary approach until you learn arrays and know the ways of master aiden. Use safari to download and open this project.Homing missile.tap

                  Jack8680J 1 Reply Last reply Reply Quote 0
                  • SplitMindGamingS
                    SplitMindGaming
                    last edited by

                    Here’s a video showcasing it follow the closest squareFullSizeRender.mov

                    1 Reply Last reply Reply Quote 0
                    • Jack8680J
                      Jack8680 @SplitMindGaming
                      last edited by

                      @SplitMindGaming I think Aidan's reworking his to not use arrays right now lol

                      SplitMindGamingS 1 Reply Last reply Reply Quote 0
                      • SplitMindGamingS
                        SplitMindGaming @Jack8680
                        last edited by

                        @Jack8680 yeah he’s about to poop on mine right now just wait for it.

                        Jack8680J 1 Reply Last reply Reply Quote 0
                        • Aidan_FireA
                          Aidan_Fire @bosswave
                          last edited by Aidan_Fire

                          @bosswave Don't use the other example, use this one instead: https://go.aws/2zEM8XH
                          Jack made me realise what I was doing before is really over complicating the problem, this one is way simpler and doesn't even use arrays.

                          It's so funny how you can make something complicated, but then it ends up being dumb because of how simple it can actually be.

                          SplitMindGamingS 1 Reply Last reply Reply Quote 1
                          • Jack8680J
                            Jack8680 @SplitMindGaming
                            last edited by Jack8680

                            @SplitMindGaming Haven't looked at yours yet, but I think the best way is something like this:

                            minDistance = -1;
                            foreach(potentialTarget in tag)
                            {
                                distance = CalculateDistance(self, potentialTarget );
                                if(minDistance == -1 OR  distance < minDistance)
                                {
                                    minDistance = distance;
                                    target = potentialTarget;
                                }
                            }
                            

                            Or if there's a maximum range, you can just do

                            minDistance = maxRange;
                            foreach(potentialTarget in tag)
                            {
                                distance = CalculateDistance(self, potentialTarget );
                                if(distance < minDistance)
                                {
                                    minDistance = distance;
                                    target = potentialTarget ;
                                }
                            }
                            

                            Too bad having an OR in hyperPad isn't quite the same as in a normal programming language; if you put two ifs next to each other connected to the same group of behaviours, it's possible for them to both be true and run the behaviours underneath twice, so it gets a bit messy.

                            1 Reply Last reply Reply Quote 1
                            • SplitMindGamingS
                              SplitMindGaming @Aidan_Fire
                              last edited by

                              @Aidan-Oxley the thing I notice with yours is that it doesn’t follow the closest square. It only follows and locks on 1 target. It doesn’t redirect. Did u check out my video on how mine behaves?

                              Aidan_FireA 1 Reply Last reply Reply Quote 0
                              • Aidan_FireA
                                Aidan_Fire @SplitMindGaming
                                last edited by Aidan_Fire

                                @SplitMindGaming It finds the nearest target ONCE, and chases that one forever. It can be told to redirect whenever you want, just activate the behaviour bundle called "Homing trigger" and it will redirect to the nearest target and then chase that one forever. For example: edit the project and add a timer and connect Homing trigger (with all the behaviours under it) underneath the timer. Don't make the timer too fast or you could lag/freeze the project if you have spawned in lots of targets. 0.5s would be fine.

                                I did look at yours. I moved the blue and green squares both to the top right of the screen and the missile just stopped and sat there.

                                SplitMindGamingS 2 Replies Last reply Reply Quote 0
                                • SplitMindGamingS
                                  SplitMindGaming @Aidan_Fire
                                  last edited by

                                  @Aidan-Oxley yeah I was going to say the same thing. When your missile hits the edge of the screen it just stops there and freezes.

                                  1 Reply Last reply Reply Quote 0
                                  • SplitMindGamingS
                                    SplitMindGaming @Aidan_Fire
                                    last edited by

                                    @Aidan-Oxley 8AEC4F6A-BC05-4262-864B-D400B6E2A4AD.png

                                    Aidan_FireA 1 Reply Last reply Reply Quote 0
                                    • Aidan_FireA
                                      Aidan_Fire @SplitMindGaming
                                      last edited by Aidan_Fire

                                      @SplitMindGaming If the object the missile is chasing gets deleted, the missile will stop and have nothing to do. In that case, you would want to add some logic to detect when its target is destroyed, and decide what to do then (e.g trigger homing again and select a new target, or just delete the missile). However if you get the missile to constantly redirect to the nearest target on a timer this shouldn't happen unless all targets are destroyed.

                                      SplitMindGamingS 1 Reply Last reply Reply Quote 0
                                      • SplitMindGamingS
                                        SplitMindGaming @Aidan_Fire
                                        last edited by

                                        @Aidan-Oxley sorry I actually want this to work because it’s something I needed for my game as well. I attached a video of me playing your version and turned on the homing behavior as you said so that it can redirect. But it still doesn’t re direct. What am I doing wrong. Are you able to get urs to redirect? FullSizeRender.mov

                                        SplitMindGamingS 1 Reply Last reply Reply Quote 0
                                        • SplitMindGamingS
                                          SplitMindGaming @SplitMindGaming
                                          last edited by

                                          @SplitMindGaming never mind I activated the homing timer instead. How do you activate the behavior bundle homing trigger?

                                          Aidan_FireA 1 Reply Last reply Reply Quote 0
                                          • Aidan_FireA
                                            Aidan_Fire @SplitMindGaming
                                            last edited by

                                            @SplitMindGaming If you activate this behaviour in any way (by connecting it under another behaviour directly, using Behaviour On with it selected, or using Execute behaviour with it selected) the missile will redirect targets ONCE.
                                            0758C057-D03A-43DA-997E-693BDF364717.jpeg

                                            If I do this, the missile will redirect to the nearest target every 0.5s:97BAD3A6-97CF-4759-8AAF-6F265A0C6D63.png

                                            SplitMindGamingS 2 Replies Last reply Reply Quote 0
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