Black stars are objects that consume almost everything in their area of effect. This mod provides 2 kinds of stars - black and red. Red are mobile, black are immobile. They attract items, blocks, creatures and destroy them;

they don't attract players because there would be no way to recover your items once you die from a star, but players will receive damage if they are at the center of a star. Stars get a random size when spawned; they can move through any blocks.

There is a way to define custom star types using BlackStar.json file. Example file:

{
  "stone_breaker": {
    "blockstates": [
      "minecraft:stone",
      "minecraft:dirt",
      "minecraft:grass"
    ],
    "color": "0x777777"
  },

  "tree_breaker": {
    "blockstates": [
      "minecraft:log:0",
      "minecraft:log:1",
      "minecraft:log:3",
      "minecraft:log:5",
      "minecraft:leaves",
      "minecraft:double_plant",
      "minecraft:tallgrass",
      "minecraft:red_flower"
    ],
    "mobile": true,
    "color": "0x77cc77"
  },

  "liquidhole": {
    "blockstates": [
      "minecraft:water",
      "minecraft:lava"
    ],
    "color": "0x8888dd"
  },

  "skeletron": {
    "entities": [
      "minecraft:skeleton",
      "minecraft:wither_skeleton"
    ],
    "color": "0x883388",
    "mobile": true
  }
}

<br /><br />

The type names - "skeletron", "tree_breaker", and so on are arbitrary and used to identify the star type. The keys:

"mobile" - sets whether the star can move;

"color" - sets the color of the star;

"entities" - list of entities which will be pulled by the star;

"blockstates" - list of blocks that will be broken and pulled.

Either "blockstates" or "entities" key is mandatory; mobility will be random if not specified, and color - will be black. The star type name will be displayed in front of it.

There is a command "stars", with following arguments:

"reload" - reparse the Json file (if you want to apply the changes without restarting minecraft);
"destroy" - destroys all stars;
<custom star group name> - spawns a new instance of custom star.

Stars spawn only in new chunks.

Check out mod config for useful options.

Warning - star operation may be resource-intensive, a computer with good CPU is recommended.

Black Star