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  3. Lock object movement on X or Y axis

Lock object movement on X or Y axis

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  • KamdroidK Offline
    KamdroidK Offline
    Kamdroid
    wrote on last edited by Kamdroid
    #1

    I’m making a game where I give the illusion of the camera movement by having obstacles move towards the player, however eventually the character will accidentally move on the X axis, ruining the experience.

    This can be easily solved by giving an option to lock an object’s X or Y axis movement.

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    • KamdroidK Kamdroid

      I’m making a game where I give the illusion of the camera movement by having obstacles move towards the player, however eventually the character will accidentally move on the X axis, ruining the experience.

      This can be easily solved by giving an option to lock an object’s X or Y axis movement.

      D Offline
      D Offline
      Deeeds
      wrote on last edited by
      #2

      @Kamdroid I've seen this somewhere. And I think I use it something I built for a camera dummy a while back... it might be a behaviour.

      D 1 Reply Last reply
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      • D Deeeds

        @Kamdroid I've seen this somewhere. And I think I use it something I built for a camera dummy a while back... it might be a behaviour.

        D Offline
        D Offline
        Deeeds
        wrote on last edited by
        #3

        @Deeeds Found it. It's in "Screen Follow" behaviour, Under Screen Behaviours.

        You can lock to one of the axis.

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        • D Deeeds

          @Deeeds Found it. It's in "Screen Follow" behaviour, Under Screen Behaviours.

          You can lock to one of the axis.

          D Offline
          D Offline
          Deeeds
          wrote on last edited by Deeeds
          #4

          @Kamdroid btw, if you're moving something to make a fake/dummy object for you camera to follow, so you can do delays of the camera and fake lerping (which I am) then do your update on Timer set at:

          0.016666666666

          This is 1/60th of a second, or thereabouts

          with as many 6's as you can be bothered typing.

          This got rid of a weird set of vibrations and other stuttering that was very fast but visible when I had this set to 0.

          I would not have thought this would make a difference, assuming that 0 was equivalent to 0.016666, but it's obviously not.

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          • D Deeeds

            @Kamdroid btw, if you're moving something to make a fake/dummy object for you camera to follow, so you can do delays of the camera and fake lerping (which I am) then do your update on Timer set at:

            0.016666666666

            This is 1/60th of a second, or thereabouts

            with as many 6's as you can be bothered typing.

            This got rid of a weird set of vibrations and other stuttering that was very fast but visible when I had this set to 0.

            I would not have thought this would make a difference, assuming that 0 was equivalent to 0.016666, but it's obviously not.

            D Offline
            D Offline
            Deeeds
            wrote on last edited by
            #5

            @Kamdroid

            One more thing...

            when updating your camera dummy, don't just adjust its position, also update its velocity. This will get rid of the little lag that occurs where the engine has to accelerate your object after moving it to the new position, which seems to be a frame or two behind the positional change, always. Most noticeable in very high speed stuff. This has completely gotten rid of the lag.

            Or... use a Weld behaviour and make sure your dummy has absolutely no mass and no friction, and then move it relative to your object whenever you want by changing the anchor position.

            These are some of the quirks and foibles I've worked around within hyperPad cameras and dummy objects. I hope they help. It took me a couple of days to iron out all the kinks in the camera follow system I made... but for one... still got a little lerping fake that's got a bit of a jump in it that I don't like, but I'll leave that for later.

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            • KamdroidK Offline
              KamdroidK Offline
              Kamdroid
              wrote on last edited by
              #6

              @Deeeds I’m aware of this, but the character is not followed by a camera.

              The player always need to have an X of 6, (the only thing that should be moving is the Y, for jumping),

              While obaticals spawn at X 36 (right edge of screen) and move to the left (towards player), and you tap to jump to avoid the obstical etc

              D Aidan_FireA 2 Replies Last reply
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              • KamdroidK Kamdroid

                @Deeeds I’m aware of this, but the character is not followed by a camera.

                The player always need to have an X of 6, (the only thing that should be moving is the Y, for jumping),

                While obaticals spawn at X 36 (right edge of screen) and move to the left (towards player), and you tap to jump to avoid the obstical etc

                D Offline
                D Offline
                Deeeds
                wrote on last edited by
                #7

                @Kamdroid
                DOH. Don't know ....

                1 Reply Last reply
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                • KamdroidK Kamdroid

                  @Deeeds I’m aware of this, but the character is not followed by a camera.

                  The player always need to have an X of 6, (the only thing that should be moving is the Y, for jumping),

                  While obaticals spawn at X 36 (right edge of screen) and move to the left (towards player), and you tap to jump to avoid the obstical etc

                  Aidan_FireA Offline
                  Aidan_FireA Offline
                  Aidan_Fire
                  wrote on last edited by
                  #8

                  @Kamdroid So your player is a physics object right? I don’t know how well it would work, but you could try running a 0 second timer with Set Velocity, leaving Y as current and X as 0. Haven’t tried it, it might not work. It would depend on the controls of the player and what the player is doing exactly.

                  KamdroidK 1 Reply Last reply
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                  • Aidan_FireA Aidan_Fire

                    @Kamdroid So your player is a physics object right? I don’t know how well it would work, but you could try running a 0 second timer with Set Velocity, leaving Y as current and X as 0. Haven’t tried it, it might not work. It would depend on the controls of the player and what the player is doing exactly.

                    KamdroidK Offline
                    KamdroidK Offline
                    Kamdroid
                    wrote on last edited by
                    #9

                    @Aidan-Oxley Thanks, this works. I was thinking of doing this but got mixed up with apply force, and thought this wouldn’t work.

                    I will use this for now, but I feel inefficient, as directly talking to the physics engines to do this would yield less of a performance impact.

                    Aidan_FireA 1 Reply Last reply
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                    • KamdroidK Kamdroid

                      @Aidan-Oxley Thanks, this works. I was thinking of doing this but got mixed up with apply force, and thought this wouldn’t work.

                      I will use this for now, but I feel inefficient, as directly talking to the physics engines to do this would yield less of a performance impact.

                      Aidan_FireA Offline
                      Aidan_FireA Offline
                      Aidan_Fire
                      wrote on last edited by
                      #10

                      @Kamdroid Nice! I guess with efficiency, I’d just wanna make sure that the FPS is always at 60.

                      1 Reply Last reply
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                      • KamdroidK Offline
                        KamdroidK Offline
                        Kamdroid
                        wrote on last edited by
                        #11

                        By the way, this is the game I was talking about, which I just released now!

                        https://www.hyperpad.com/projects/aubjkay_/versions/bounce-tap

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                        • KamdroidK Kamdroid

                          By the way, this is the game I was talking about, which I just released now!

                          https://www.hyperpad.com/projects/aubjkay_/versions/bounce-tap

                          D Offline
                          D Offline
                          Deeeds
                          wrote on last edited by
                          #12

                          @Kamdroid WELL DONE!!!

                          KamdroidK 1 Reply Last reply
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                          • D Deeeds

                            @Kamdroid WELL DONE!!!

                            KamdroidK Offline
                            KamdroidK Offline
                            Kamdroid
                            wrote on last edited by
                            #13

                            @Deeeds Thank you. Do you get any stutter while playing?

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                            • KamdroidK Kamdroid

                              @Deeeds Thank you. Do you get any stutter while playing?

                              D Offline
                              D Offline
                              Deeeds
                              wrote on last edited by
                              #14

                              @Kamdroid Haven't played it yet. I was congratulating you on getting finished. That's rare!

                              KamdroidK 1 Reply Last reply
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                              • D Deeeds

                                @Kamdroid Haven't played it yet. I was congratulating you on getting finished. That's rare!

                                KamdroidK Offline
                                KamdroidK Offline
                                Kamdroid
                                wrote on last edited by
                                #15

                                @Deeeds Oh, haha. I always get projects done if I’m happy with how the quality of the game and gameplay will be.

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                                • KamdroidK Kamdroid

                                  @Deeeds Oh, haha. I always get projects done if I’m happy with how the quality of the game and gameplay will be.

                                  D Offline
                                  D Offline
                                  Deeeds
                                  wrote on last edited by
                                  #16

                                  @Kamdroid Again, WELL DONE! I'll get to it soon. Promise. Sorry I haven't had a chance yet.... fighting with spawning and "relationships" in hyperPad's worlds without them.

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