58 lines
2.9 KiB
Markdown
58 lines
2.9 KiB
Markdown
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---
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layout: article
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title: "Structures"
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date: 2016-10-23 10:17:42 -0400
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mod: shadowmc
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mod-name: ShadowMC
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---
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ShadowMC provides a structure system for loading structures from JSON and generating them in the world.
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The root JSON element contains a child for `blocks` which is a nested array 3 levels deep (one for each dimension, Y, X, and Z) which contains the information for the blocks. The first array is the Y plane, the second nested array is the x plane, and the third nested array is the z plane.
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Each element in the third nested array is a block, the x-y-z coordinates for which are index of the second array for the X coordinate, the index of the first array for the Y coordinate, and the index of the third array for the Z coordinate.
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Each block has 2 required properties, `id`, and `properties`. The `id` is the ID of the block in the form of `modid:name`. `properties` is an object which contains key-value pairs of property names to property values in the block state.
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There are two additional optional properites, `lootId` and `inventory`.
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If `lootId` is present, the inventory of the block will be populated using the loot table specified by the `lootId` property. A list of vanilla loot tables can be found [here](https://minecraft.gamepedia.com/Loot_table#List_of_loot_tables).
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If `inventory` is present, the inventory of the block will be populated using the entries in the `inventory` array. Each entry in the `inventory` array has three required properties, `item`, `amount`, and `slot`. `item` is the item to use in the form of `modid:name:meta` where `meta` is optional. `amount` is the number of that item to use (the stack size). `slot` is the slot in the inventory to place the stack in.
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{% highlight json linenos %}
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{
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"blocks": [
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[
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[
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{
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"id": "minecraft:chest",
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"properties": {
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"facing": "south"
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},
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"lootId": "minecraft:chests/simple_dungeon"
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},
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{
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"id": "minecraft:furnace",
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"properties": {
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"facing": "south"
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},
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"inventory": [
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{
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"item": "minecraft:iron_ore",
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"amount": 7,
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"slot": 0
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}
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]
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},
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{
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"id": "minecraft:diamond_block",
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"properties": {}
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}
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]
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]
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]
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}
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{% endhighlight %}
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This structure represents a west-east line of three blocks. When looking at them from the south, the leftmost one is a chest which is facing south and has been populated from the `minecraft:chests/simple_dungeon` loot table. The middle one is a furnace that is also facing south that contains 7 Iron Ores in its input slot. The rightmost one is a diamond block.
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