How to use

CustomHitBox

in

cofh.core.render.hitbox

@Override
public CustomHitBox getCustomHitBox(int subHit, EntityPlayer thePlayer) {
  double v1 = getDuctType().isLargeTube() ? 0.075 : .3;
  double v = (1 - v1 * 2);
  CustomHitBox hb = new CustomHitBox(v, v, v, pos.getX() + v1, pos.getY() + v1, pos.getZ() + v1);
  for (int i = 0; i < 6; i++) {
    BlockDuct.ConnectionType renderConnectionType = getVisualConnectionType(i);
    if (renderConnectionType == BlockDuct.ConnectionType.DUCT) {
      hb.drawSide(i, true);
      hb.setSideLength(i, v1);
    } else if (renderConnectionType != BlockDuct.ConnectionType.NONE) {
      hb.drawSide(i, true);
      hb.setSideLength(i, .04);
    }
  }
  return hb;
}

/**
 * Draws the selection box for the player. Args: entityPlayer, rayTraceHit, i, itemStack, partialTickTime
 */
public static void drawSelectionBox(EntityPlayer player, RayTraceResult rayTraceResult, float pTickTime, CustomHitBox customHitBox) {
  if (rayTraceResult.typeOfHit == Type.BLOCK) {
    GlStateManager.enableBlend();
    GlStateManager.tryBlendFuncSeparate(770, 771, 1, 0);
    GlStateManager.color(0.0F, 0.0F, 0.0F, 0.4F);
    GlStateManager.glLineWidth(2.0F);
    GlStateManager.disableTexture2D();
    GlStateManager.depthMask(false);
    IBlockState state = player.world.getBlockState(rayTraceResult.getBlockPos());
    if (state.getMaterial() != Material.AIR) {
      //block.setBlockBoundsBasedOnState(thePlayer.worldObj, rayTraceResult.blockX, rayTraceResult.blockY, rayTraceResult.blockZ);
      double d0 = player.lastTickPosX + (player.posX - player.lastTickPosX) * pTickTime;
      double d1 = player.lastTickPosY + (player.posY - player.lastTickPosY) * pTickTime;
      double d2 = player.lastTickPosZ + (player.posZ - player.lastTickPosZ) * pTickTime;
      drawOutlinedBoundingBox(customHitBox.addExtraSpace(extraSpace).offsetForDraw(-d0, -d1, -d2));
    }
    GlStateManager.depthMask(true);
    GlStateManager.enableTexture2D();
    GlStateManager.disableBlend();
  }
}

private boolean doAttachmentHighlight(RayTraceResult target, EntityPlayer player, float partialTicks) {
  if (!(ItemHelper.getHeldStack(player).getItem() instanceof ItemAttachment) || target.typeOfHit != Type.BLOCK) {
    return false;
  }
  RayTracer.retraceBlock(player.world, player, target.getBlockPos());
  ItemStack stack = ItemHelper.getHeldStack(player);
  Attachment attachment = ItemAttachment.getAttachment(stack, player, player.world, target.getBlockPos(), target.sideHit);
  if (attachment == null || !attachment.canAddToTile(attachment.baseTile)) {
    return false;
  }
  Cuboid6 c = attachment.getCuboid();
  c.max.subtract(c.min);
  RenderHitbox.drawSelectionBox(player, target, partialTicks, new CustomHitBox(c.max.y, c.max.z, c.max.x, attachment.baseTile.x() + c.min.x, attachment.baseTile.y() + c.min.y, attachment.baseTile.z() + c.min.z));
  attachment.drawSelectionExtra(player, target, partialTicks);
  return true;
}