Jump to content
Currently supported: All versions

Non-AxisAligned BoundingBoxes?

ObsequiousNewt

By ObsequiousNewt
in Suggestions

 Share

Recommended Posts

ObsequiousNewt Dragon Slayer

ObsequiousNewt

Posted
Posted

The Minecraft entity collision code, as I just learned, is sadly lacking. The entity code is configured, by default, to allow a square prism. What if you want a bounding box with custom dimensions? Override setPosition. Easy enough, until you start trying to work with rotation. For example, I'm trying to make a tractor, which is obviously longer than it is wide. I want to allow it to turn. Easy? No, because the bounding box is axis-aligned.

 

I'd like to request, perhaps as a long-term goal, that a non-axisaligned bounding box system be implemented. This would allow for better entity collisions universally.

BEWARE OF GOD

---

Co-author of Pentachoron Labs' SBFP Tech.

Link to comment
Share on other sites
  • 3 weeks later...
Xfel Tree Puncher

Xfel

Posted
Posted

As all bounding boxes are axis-aligned, the intersection detection (for collision etc) is very easy. if you take a non-axis-aligned bounding box, the complexity of the collision checks increases drastically. So this would be a bad idea as it would harm performance.

Link to comment
Share on other sites
Guest
This topic is now closed to further replies.
 Share
Go to topic listing

Announcements



  • Recently Browsing

    • No registered users viewing this page.

  • Posts

    • vacolandia
      [1.20.1] Apply multiple full armor effects doesn't work

      By vacolandia · Posted

      I have a problem, I am trying to put two different effects to two different armors but when I run it only the emerald armor effect works. This is the code public class ModArmorItem extends ArmorItem{ private static final Map<ArmorMaterial, MobEffectInstance> MATERIAL_TO_EFFECT_MAP = (new ImmutableMap.Builder<ArmorMaterial, MobEffectInstance>()) .put(ModArmorMaterials.EMERALD, new MobEffectInstance(MobEffects.HERO_OF_THE_VILLAGE,200, 1,false,false, true)) .put(ModArmorMaterials.OBSIDIAN, new MobEffectInstance(MobEffects.FIRE_RESISTANCE,200, 1,false,false, true)).build(); public ModArmorItem(ArmorMaterial pMaterial, Type pType, Properties pProperties) { super(pMaterial, pType, pProperties); } @Override public void onArmorTick(ItemStack stack, Level world, Player player){ if (!world.isClientSide()) { if (hasFullSuitOfArmorOn(player)) { evaluateArmorEffects(player); } } } private void evaluateArmorEffects(Player player) { for (Map.Entry<ArmorMaterial,MobEffectInstance> entry : MATERIAL_TO_EFFECT_MAP.entrySet()){ ArmorMaterial mapArmorMaterial = entry.getKey(); MobEffectInstance mapStatusEffect = entry.getValue(); if (hasCorrectArmorOn(mapArmorMaterial, player)) { addStatusEffectForMaterial(player, mapArmorMaterial, mapStatusEffect); } } } private void addStatusEffectForMaterial(Player player, ArmorMaterial mapArmorMaterial, MobEffectInstance mapStatusEffect) { boolean hasPlayerEffect = player.hasEffect(mapStatusEffect.getEffect()); if (hasCorrectArmorOn(mapArmorMaterial, player) && !hasPlayerEffect) { player.addEffect(new MobEffectInstance(mapStatusEffect)); } } private boolean hasCorrectArmorOn(ArmorMaterial material, Player player) { for (ItemStack armorStack : player.getInventory().armor){ if (!(armorStack.getItem() instanceof ArmorItem)) { return false; } } ArmorItem helmet = ((ArmorItem)player.getInventory().getArmor(3).getItem()); ArmorItem breastplace = ((ArmorItem)player.getInventory().getArmor(2).getItem()); ArmorItem leggins = ((ArmorItem)player.getInventory().getArmor(1).getItem()); ArmorItem boots = ((ArmorItem)player.getInventory().getArmor(0).getItem()); return helmet.getMaterial() == material && breastplace.getMaterial() == material && leggins.getMaterial() == material && boots.getMaterial() == material; } private boolean hasFullSuitOfArmorOn(Player player){ ItemStack helmet = player.getInventory().getArmor(3); ItemStack breastplace = player.getInventory().getArmor(2); ItemStack leggins = player.getInventory().getArmor(1); ItemStack boots = player.getInventory().getArmor(0); return !helmet.isEmpty() && !breastplace.isEmpty() && !leggins.isEmpty() && !boots.isEmpty(); } } Also when I place two effects on the same armor, the game crashes. Here is the crash file. The code is the same, only this part is different   private static final Map<ArmorMaterial, MobEffectInstance> MATERIAL_TO_EFFECT_MAP = (new ImmutableMap.Builder<ArmorMaterial, MobEffectInstance>()) .put(ModArmorMaterials.EMERALD, new MobEffectInstance(MobEffects.HERO_OF_THE_VILLAGE,200, 1,false,false, true)) .put(ModArmorMaterials.EMERALD, new MobEffectInstance(MobEffects.FIRE_RESISTANCE,200, 1,false,false, true)).build(); I hope you guys can help me. Thanks.
    • DevJake
      Crash java.lang.IndexOutOfBoundsException: bitIndex < 0: -1

      By DevJake · Posted

      I removed all related embeddium and oculus mods, i just tested it by disconnecting and the error happened again. heres the report https://pastebin.com/1kcR5wAt   EDIT: i tried removing xaeros and also smoothboot thinking there may be an issue there, nothing, heres that report too. https://pastebin.com/zQS7i9rM
    • vacolandia
      [1.20.1] Apply custom full armor effects

      By vacolandia · Posted

      Hi, I need suggestions. I am a beginner in Minecraft Modding. I would like to apply custom effects to some armors, something like: more chance to drop seeds, change zombie awareness, drop more pieces of wood when chopping logs, and things like that. How would you recommend me to do it, is there any library that has something similar and which ones would you recommend me?.
    • _Akkinn_
      I cant apply forge to my minecraft server.

      By _Akkinn_ · Posted

      "downloading minecraft server failed, invalid Checksum. try again, or manually place server.jar to skip download"    
    • Xoroshio
      Create multiple hitboxes for the Player

      By Xoroshio · Posted

      You have to create an Entity class called PlayerPart and use multiple of them to make the different parts of the player. See EnderDragonPart.java source code. The green hitboxes of the dragon are all EnderDragonParts

  • Topics

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.

  I accept