[Forge][1.11.2] Get the entity that another entity is looking at Server side
| /** | |
| * Gets the entity that a entity is looking at | |
| * @param blockReachDistance the distance to check | |
| * @param entity the entity who is looking | |
| * @return the entity found, or null if one is not found | |
| * @since May 30, 2017 | |
| * @author Dalethium | |
| */ | |
| @Nullable | |
| public Entity getLookedAtEntity(double blockReachDistance, Entity entity) { | |
| Vec3d eyeVec = entity.getPositionEyes(0f); | |
| Vec3d lookVec = entity.getLook(1.0F); | |
| Vec3d diffVec = eyeVec.addVector(lookVec.xCoord * blockReachDistance, lookVec.yCoord * blockReachDistance, lookVec.zCoord * blockReachDistance); | |
| Vec3d resultVec = null; | |
| RayTraceResult traceA = entity.world.rayTraceBlocks(eyeVec, diffVec, false, false, true); | |
| double distA = blockReachDistance; | |
| Entity pointedEntity = null; | |
| if (traceA != null) { | |
| distA = traceA.hitVec.distanceTo(eyeVec); | |
| } | |
| List<Entity> list = entity.world.getEntitiesInAABBexcluding(entity, entity.getEntityBoundingBox().addCoord(lookVec.xCoord * blockReachDistance, lookVec.yCoord * blockReachDistance, lookVec.zCoord * blockReachDistance).expand(1.0D, 1.0D, 1.0D), Predicates.and(EntitySelectors.NOT_SPECTATING, new Predicate<Entity>() { | |
| public boolean apply(@Nullable Entity entity) { | |
| return entity != null && entity.canBeCollidedWith(); | |
| } | |
| })); | |
| for (int j = 0; j < list.size(); ++j) { | |
| Entity currEntity = (Entity)list.get(j); | |
| AxisAlignedBB axisalignedbb = currEntity.getEntityBoundingBox().expandXyz((double)currEntity.getCollisionBorderSize()); | |
| RayTraceResult raytraceresult = axisalignedbb.calculateIntercept(eyeVec, diffVec); | |
| if (axisalignedbb.isVecInside(eyeVec)) { | |
| if (distA >= 0.0D) { | |
| pointedEntity = currEntity; | |
| resultVec = raytraceresult == null ? eyeVec : raytraceresult.hitVec; | |
| distA = 0.0D; | |
| } | |
| } else if (raytraceresult != null) { | |
| double distB = eyeVec.distanceTo(raytraceresult.hitVec); | |
| if (distB < distA || distA == 0.0D) { | |
| if (currEntity.getLowestRidingEntity() == entity.getLowestRidingEntity() && !entity.canRiderInteract()) { | |
| if (distA == 0.0D) { | |
| pointedEntity = currEntity; | |
| resultVec = raytraceresult.hitVec; | |
| } | |
| } else { | |
| pointedEntity = currEntity; | |
| resultVec = raytraceresult.hitVec; | |
| distA = distB; | |
| } | |
| } | |
| } | |
| } | |
| return pointedEntity; | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
This comment has been minimized.
I spent a lot of time looking for a way to do this and found nothing, so I figured I'd share it, it's mostly code ripped from sections of minecraft/forge code.
It's not very clean, most of it is not even refractored, sorry.
I just finished the method, and did basic functionality testing, obviously this is AS IS and WITHOUT WARRANTY.
If you find a bug or whatever feel free to correct it, I just wanted to give people a starting point.
Have a great day!