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  3. Homing projectile vs multiple targets

Homing projectile vs multiple targets

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  • SplitMindGamingS Offline
    SplitMindGamingS Offline
    SplitMindGaming
    wrote on last edited by
    #21

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

    1 Reply Last reply
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    • SplitMindGamingS SplitMindGaming

      @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

      Jack de WildeJ Offline
      Jack de WildeJ Offline
      Jack de Wilde
      wrote on last edited by
      #22

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

      SplitMindGamingS 1 Reply Last reply
      0
      • Jack de WildeJ Jack de Wilde

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

        SplitMindGamingS Offline
        SplitMindGamingS Offline
        SplitMindGaming
        wrote on last edited by
        #23

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

        Jack de WildeJ 1 Reply Last reply
        0
        • bosswaveB bosswave

          @Aidan-Oxley I’ve never tried working with arrays before. Seems like I have my work cut out lol.

          And where the heck is the set input field behavior? Am I needing to purchase an upgrade to have access to it or something?

          Aidan_FireA Offline
          Aidan_FireA Offline
          Aidan_Fire
          wrote on last edited by Aidan_Fire
          #24

          @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
          1
          • SplitMindGamingS SplitMindGaming

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

            Jack de WildeJ Offline
            Jack de WildeJ Offline
            Jack de Wilde
            wrote on last edited by Jack8680
            #25

            @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
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            • Aidan_FireA 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 Offline
              SplitMindGamingS Offline
              SplitMindGaming
              wrote on last edited by
              #26

              @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
              0
              • SplitMindGamingS SplitMindGaming

                @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 Offline
                Aidan_FireA Offline
                Aidan_Fire
                wrote on last edited by Aidan_Fire
                #27

                @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
                0
                • Aidan_FireA 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 Offline
                  SplitMindGamingS Offline
                  SplitMindGaming
                  wrote on last edited by
                  #28

                  @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
                  0
                  • Aidan_FireA 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 Offline
                    SplitMindGamingS Offline
                    SplitMindGaming
                    wrote on last edited by
                    #29

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

                    Aidan_FireA 1 Reply Last reply
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                    • SplitMindGamingS SplitMindGaming

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

                      Aidan_FireA Offline
                      Aidan_FireA Offline
                      Aidan_Fire
                      wrote on last edited by Aidan_Fire
                      #30

                      @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
                      0
                      • Aidan_FireA 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 Offline
                        SplitMindGamingS Offline
                        SplitMindGaming
                        wrote on last edited by
                        #31

                        @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
                        0
                        • SplitMindGamingS SplitMindGaming

                          @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 Offline
                          SplitMindGamingS Offline
                          SplitMindGaming
                          wrote on last edited by
                          #32

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

                          Aidan_FireA 1 Reply Last reply
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                          • SplitMindGamingS SplitMindGaming

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

                            Aidan_FireA Offline
                            Aidan_FireA Offline
                            Aidan_Fire
                            wrote on last edited by
                            #33

                            @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
                            0
                            • Aidan_FireA Aidan_Fire

                              @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 Offline
                              SplitMindGamingS Offline
                              SplitMindGaming
                              wrote on last edited by
                              #34

                              @Aidan-Oxley ahhh I didn’t add the timer. Yes it works flawlessly like that. Thanks

                              1 Reply Last reply
                              0
                              • Aidan_FireA Aidan_Fire

                                @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 Offline
                                SplitMindGamingS Offline
                                SplitMindGaming
                                wrote on last edited by SplitMindGaming
                                #35

                                @Aidan-Oxley care to be a teacher for a bit. I don’t understand input field or even how to use loop properly in that matter. What does it mean when you put “a” on the input field. What does that represent?

                                Aidan_FireA 1 Reply Last reply
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                                • SplitMindGamingS SplitMindGaming

                                  @Aidan-Oxley care to be a teacher for a bit. I don’t understand input field or even how to use loop properly in that matter. What does it mean when you put “a” on the input field. What does that represent?

                                  Aidan_FireA Offline
                                  Aidan_FireA Offline
                                  Aidan_Fire
                                  wrote on last edited by Aidan_Fire
                                  #36

                                  @SplitMindGaming lol nothing. It's a mistake, I meant to put 0 or absolutely nothing in there. Now that I think about it, delete that behaviour completely, it'll still work exactly the same, it's leftover from my previous method before Jack showed me better one.

                                  Set Input Field basically does exactly as it says. When you press on that symbol next to the Input field of a behaviour, you are given a prompt and you can create a Set Input Field behaviour. When this behaviour is run, it simply changes whatever was in there to the new value you put in it.

                                  The loop behaviour is like a timer but extremely fast, as in it will freeze hyperPad until it is done (it won't freeze hyperPad unless you make it loop a crazy amount of times). It has a few settings, you can either set the exact amount of times you want it to repeat the stuf under it, or you can give it a tag and set it to "for each" where it will count the amount of objects in that tag by itself, and then repeat the stuff under it once for each object while also selecting that object to do stuff to.

                                  SplitMindGamingS 1 Reply Last reply
                                  0
                                  • Aidan_FireA Aidan_Fire

                                    @SplitMindGaming lol nothing. It's a mistake, I meant to put 0 or absolutely nothing in there. Now that I think about it, delete that behaviour completely, it'll still work exactly the same, it's leftover from my previous method before Jack showed me better one.

                                    Set Input Field basically does exactly as it says. When you press on that symbol next to the Input field of a behaviour, you are given a prompt and you can create a Set Input Field behaviour. When this behaviour is run, it simply changes whatever was in there to the new value you put in it.

                                    The loop behaviour is like a timer but extremely fast, as in it will freeze hyperPad until it is done (it won't freeze hyperPad unless you make it loop a crazy amount of times). It has a few settings, you can either set the exact amount of times you want it to repeat the stuf under it, or you can give it a tag and set it to "for each" where it will count the amount of objects in that tag by itself, and then repeat the stuff under it once for each object while also selecting that object to do stuff to.

                                    SplitMindGamingS Offline
                                    SplitMindGamingS Offline
                                    SplitMindGaming
                                    wrote on last edited by
                                    #37

                                    @Aidan-Oxley I see what about the box container minimum distance. It doesn’t even have any value storing. I notice it was called on an if statement saying if calculate distance is less then minimum distance. How does that calculate when the minimum distance contains no value. Or does it contain a value? I’m not sure exactly what happening there.

                                    Aidan_FireA 1 Reply Last reply
                                    0
                                    • SplitMindGamingS SplitMindGaming

                                      @Aidan-Oxley I see what about the box container minimum distance. It doesn’t even have any value storing. I notice it was called on an if statement saying if calculate distance is less then minimum distance. How does that calculate when the minimum distance contains no value. Or does it contain a value? I’m not sure exactly what happening there.

                                      Aidan_FireA Offline
                                      Aidan_FireA Offline
                                      Aidan_Fire
                                      wrote on last edited by Aidan_Fire
                                      #38

                                      @SplitMindGaming If the loop index = 0 (that is, if it's the very first object selected in the loop), set the minimum distance to the distance calculated to this specific object. Now, if the distance calculated is less than or equal to the value stored in minimum distance, then get the ID of this object we calculated the distance to.

                                      This is exactly how the logic under the loop works in the example, explained into words.

                                      SplitMindGamingS 1 Reply Last reply
                                      0
                                      • bosswaveB Offline
                                        bosswaveB Offline
                                        bosswave
                                        wrote on last edited by
                                        #39

                                        I’ve gotta say.. thanks a million. I’ve NEVER seen the loop and get object behaviors there. I’ve always wished for them lol.

                                        I got it to work almost perfectly.

                                        Also, I find that using a Propel Object behavior with a negative value attached to a timer is a nice, smooth, and easy way to accomplish a classic homing missile effect.

                                        Aidan_FireA 1 Reply Last reply
                                        0
                                        • bosswaveB bosswave

                                          I’ve gotta say.. thanks a million. I’ve NEVER seen the loop and get object behaviors there. I’ve always wished for them lol.

                                          I got it to work almost perfectly.

                                          Also, I find that using a Propel Object behavior with a negative value attached to a timer is a nice, smooth, and easy way to accomplish a classic homing missile effect.

                                          Aidan_FireA Offline
                                          Aidan_FireA Offline
                                          Aidan_Fire
                                          wrote on last edited by
                                          #40

                                          @bosswave Yeah I've used that before I think. Just as long as you have friction it's fine (without friction the missile can just go into orbit of the target lol).

                                          Jack de WildeJ 1 Reply Last reply
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