Applet Orchard

Java Game Programming #7 – Collision Bounds

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In this video we learn how to create collision bounds around our player. If you have any questions then be sure to leave a comment or contact me on twitter; realtutsgml. If you learned something then be sure to leave a like, comment, and favorite.

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37 responses to “Java Game Programming #7 – Collision Bounds”

  1. TheManeOfLife Avatar
    TheManeOfLife

    Debug never works

    Reply
  2. JordanEqualsGuitar Avatar
    JordanEqualsGuitar

    Has anyone else had an issue with dividing the width by 2 but not seeing a result?

    Reply
  3. Pop Club Avatar
    Pop Club

    My Gravity Isn't Working Anymore… 🙁

    Reply
  4. AminamHD Avatar
    AminamHD

    (width/2)-(width/2)/2 is the same as width/4

    Reply
  5. [DATA_EXPUNGED] [REDACTED] Avatar
    [DATA_EXPUNGED] [REDACTED]

    Get me out of here right now.

    Reply
  6. Nicolás Suarez Avatar
    Nicolás Suarez

    u mirin' brah, do u know zyzz?

    Reply
  7. Aaditya Avatar
    Aaditya

    +RealTutsGML What is your real name by the way?

    Reply
  8. Taylor Kohls Avatar
    Taylor Kohls

    Is there a reason you divided by 2 twice instead of just dividing by 4 once?

    Reply
  9. Drew Avatar
    Drew

    You could just ad with/4 instead of width/2 – width/2/2

    Reply
  10. Vegard Fjeldberg Avatar
    Vegard Fjeldberg

    Why should we make four colliding detecting boxes? As I see it, we need only one that spans the whole square.

    Reply
  11. Jerstah phucku Avatar
    Jerstah phucku

    new Question, I have a sprite of mario that is 16×28 and I cant get the collision quite right(his head constantly gets stuck when jumping into blocks), any advice?. Or should I stick to all sprites being 32×32 and multiplicative(ex 32×64 or 64×64)? 

    Reply
  12. Jerstah phucku Avatar
    Jerstah phucku

    does anyone have a problem with FPS dropping to 1 after a few seconds of opening? the only thing I know to check is g.dispose(); in Game.render();
    I also added g2d.dispose(); at the end of the Player.render(g); and I am still wondering why its dropping until it comes to a stop

    Reply
  13. Erik the God Eating Penguin Avatar
    Erik the God Eating Penguin

    I have a fail-safe collision detection system. It looks at where you were the frame BEFORE you collided with the object to determine which direction you came from.

    Reply
  14. theone102 Avatar
    theone102

    My debug mode doesn't work, it will run the program, but not change when I make a change in the code.

    Reply
  15. Rob Miller Avatar
    Rob Miller

    We are following this tutorial as a programming class project.  When we hit run, we get nothing–no pop-up window, player box, nothing.  All 20 of us independently have this same issue.

    Help!?

    Reply
  16. TooT - the new Google Avatar
    TooT – the new Google

    Uuuhm bounds are wrong for me

    Reply
  17. JDam Avatar
    JDam

    MORE!
    FASTER! HARDER! STRONGER!
    NEED MORE!

    Reply
  18. Lucifer Avatar
    Lucifer

    I think the way you set your bottom and top bounds to the horizontal middle of the sprite was pretty wonky. Instead of doing x + (width/2) – ((width/2)/2) you could have simply done x+(width/4) and gotten the exact same result.

    Reply
  19. Richard Tester Avatar
    Richard Tester

    watch?v=GVKdqevQRhg this video show you an easy way too get the dark gui

    Reply
  20. Richard Tester Avatar
    Richard Tester

    when is the next one coming i cant wait

    Reply
  21. namesarehard Avatar
    namesarehard

    Theres a plugin for that.
    Google search.
    Or if you use ubuntu and compiz there is a setting that allows you to invert your screen color by pressing win+n.

    Reply
  22. JJOULK Avatar
    JJOULK

    You keep doing Real Tutorials, thaks

    Reply
  23. RegenerationNetwork Avatar
    RegenerationNetwork

    I ran out of space in the last comment so I will continue here: That's all the suggestions I have as of today, but I just wanted to say thank you for posting great tutorials and acting like your truly into it to help the audience understand the concepts better. Keep up the good work!

    Reply
  24. RegenerationNetwork Avatar
    RegenerationNetwork

    Hello Realtutsgml, I have been following this series for a while now and would like to give you some suggestions for your videos. First of all, your videos need more content. What I mean by this is you should either make longer videos or post more frequently. Second, you need to set up proper posting dates for each of your videos in a certain series (Ex: Monday=Java Game Programming Tutorial, Tuesday=Uplay, etc). Finally, you might want to add a suggestion poll to this series for what to do next

    Reply
  25. Ryan C Avatar
    Ryan C

    Could make it so the game automatically updates if there is a newer version avaliable?

    Reply
  26. Little Monkey Avatar
    Little Monkey

    just found your channel – it's awesome. Keep up the hard work 😀

    Reply
  27. RealTutsGML Avatar
    RealTutsGML

    I don't see why not

    Reply
  28. Tommas Witvrouwen Avatar
    Tommas Witvrouwen

    Can i follow the series if i make my player not 48×96 but 32×32?

    Reply
  29. Tommas Witvrouwen Avatar
    Tommas Witvrouwen

    Nice tutorial these are real(y good)tuts

    Reply
  30. Andrei Verdes Avatar
    Andrei Verdes

    very usefull ! But i have 1 question… how do you change the background of the eclipse? i only can change the text part color…

    Reply
  31. Hyperverse Avatar
    Hyperverse

    Can't wait!

    Reply
  32. Richard Tester Avatar
    Richard Tester

    Diddo

    Reply
  33. Wupdog Avatar
    Wupdog

    collision tomorrow ey, sweet

    Reply
  34. RealTutsGML Avatar
    RealTutsGML

    I saw it

    Reply
  35. PixleNinjaMC Avatar
    PixleNinjaMC

    anyone see the coulor changing backgroound???

    Reply
  36. I am Ladybug, Eater of Souls! Avatar
    I am Ladybug, Eater of Souls!

    8th

    Reply
  37. Sint Maarten Avatar
    Sint Maarten

    second view!!!

    Reply

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