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tutorial:jigsaw [2019/10/20 21:01] – draylartutorial:1.15:jigsaw [2020/08/15 12:46] – [Jigsaws] emmanuelmess
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-Jigsaws!+====== Jigsaws ====== 
 +Jigsaws are good for advanced structures such as dungeons & villages, and allow you to spend more time on actually building content vs. messing with procedural generation code. 
  
-Starting: +A repository with finished code can be found [[https://github.com/Draylar/jigsaw-example-mod|here for 1.14]], [[https://github.com/Draylar/jigsaw-example-mod/tree/1.15|here for 1.15]], [[tutorial:jigsaw|here for 1.16]] 
- - StructureFeatureclass +
- - StructureStart class +
- - Piece class+
  
-`Feature` is essentially a wrapper for almost any world addition. Almost every generation detail is somehow related to features: +===== Creating a StructureFeature =====
- - trees +
- - rocks +
- - dungeons +
- - underground ores+
  
-==== Creating a StructureFeature ==== +A ''StructureFeature'' is an advanced ''Feature'': it keeps track of its location and bounds, and also has the ability to generate itself from a structure file((While you can generate your StructureFeature from a ''.nbt'' file, most vanilla StructureFeatures simply override the ''generate'' method inside their given Piece class.)). If it helps, you can think of it as a ''Structure'' + ''Feature''. We'll need to create one for our jigsaw generated structure. To start, create a class that extends ''StructureFeature<DefaultFeatureConfig>''((AbstractTempleFeature is another option. It automatically spaces out the structures similar to the existing temples-- this logic is also used by villages.)). Feature naming convention is "structure name" + "Feature"; a few vanilla examples are ''EndCityFeature'', ''OceanRuinFeature'', and ''VillageFeature''.
-A ''StructureFeature'' is an advanced ''Feature'': it keeps track of its location and bounds, and also has the ability to generate itself from a structure file((While you can generate your StructureFeature from a ''.nbt'' file, most vanilla StructureFeatures simply override the `generate` method inside their given Piece class.)). If it helps, you can think of it as a ''Structure'' + ''Feature''. We'll need to create one for our jigsaw generated structure. To start, create a class that extends `StructureFeature<DefaultFeatureConfig>`[2]. Feature naming convention is "structure name" + "Feature"; a few vanilla examples are ''EndCityFeature'', ''OceanRuinFeature'', and ''VillageFeature''.+
  
 //Note: while Feature is the proper name for something generated in the world, we'll refer to our addition as a Structure. This is to distinguish between a StructureFeature and a standard Feature.// //Note: while Feature is the proper name for something generated in the world, we'll refer to our addition as a Structure. This is to distinguish between a StructureFeature and a standard Feature.//
  
-We'll keep the constructor as-is. The `Function<Dynamic<?>>` parameter is the structure config-- if you don't have any plans to mess with it, you can simply pass `DefaultFeatureConfig::deserialize` into super:+We'll keep the constructor as-is. The ''Function<Dynamic<?>>'' parameter is the structure config-- if you don't have any plans to mess with it, you can simply pass ''DefaultFeatureConfig::deserialize'' into super:
  
 <code java [enable_line_numbers="false"]> <code java [enable_line_numbers="false"]>
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  * turns into  * turns into
  
-[jigsaw_blank]+{{ https://i.imgur.com/owaJ0k2.png?nolink&600 |Blank Jigsaw}}
  
 When thinking about this as a puzzle, the target pool is the group of puzzle pieces you can search through. If you have a total of 10 pieces, one target pool may have 7 of the total pieces. This field is how a jigsaw specifies, "Hi, I'd like a piece from group B to connect to me!" In the case of a village, this may be a road saying, "Give me a house!" The target pools of 2 jigsaws do not have to match: the requestor gets to decide who they select from. It is **not** defining what type //the given// jigsaw block is, but rather what type should be on the //other side//. When thinking about this as a puzzle, the target pool is the group of puzzle pieces you can search through. If you have a total of 10 pieces, one target pool may have 7 of the total pieces. This field is how a jigsaw specifies, "Hi, I'd like a piece from group B to connect to me!" In the case of a village, this may be a road saying, "Give me a house!" The target pools of 2 jigsaws do not have to match: the requestor gets to decide who they select from. It is **not** defining what type //the given// jigsaw block is, but rather what type should be on the //other side//.
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 Here's an example implementation: the given jigsaw will draw from the //tutorial:my_pool// structure pool, looks for any jigsaws with the //tutorial:any// type, and turns into cobblestone when it's done. Here's an example implementation: the given jigsaw will draw from the //tutorial:my_pool// structure pool, looks for any jigsaws with the //tutorial:any// type, and turns into cobblestone when it's done.
  
-[jigsaw_finished]+{{ https://i.imgur.com/f9tP2sv.png?nolink&600 |Example Finished Jigsaw}}
  
 Our finalized structure will consist of multiple colored squares connecting to each other. It will have a white or a black square in the center, and orange, magenta, light blue, and lime squares branching off on the sides randomly. Here is the setup of our 2 initial squares: Our finalized structure will consist of multiple colored squares connecting to each other. It will have a white or a black square in the center, and orange, magenta, light blue, and lime squares branching off on the sides randomly. Here is the setup of our 2 initial squares:
-[pre]+ 
 +{{ https://i.imgur.com/dVFADy8.png?nolink&400 |Initial Squares}}
  
 This jigsaw will ask for any other jigsaw that: This jigsaw will ask for any other jigsaw that:
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 For demo purposes, we've made 2 starting platforms: one is white, and one is black. The only difference is what they turn into. We'll save these as structure files using structure blocks: For demo purposes, we've made 2 starting platforms: one is white, and one is black. The only difference is what they turn into. We'll save these as structure files using structure blocks:
-[bwpost]+ 
 +{{ https://i.imgur.com/31LAORw.png?nolink&400 |Finalized Initial Squares}}
  
 For our randomized edge platforms, we've made 4 extra squares of different colors. Again, despite being used for a different purpose, the jigsaw construction is //the same// aside from the "turns into" field. For our randomized edge platforms, we've made 4 extra squares of different colors. Again, despite being used for a different purpose, the jigsaw construction is //the same// aside from the "turns into" field.
-[post]+ 
 +{{ https://i.imgur.com/OngxweJ.png?nolink&400 |Colored Squares}}
  
 We now have 6 saved ''.nbt'' files. These can be found in our world save folder under ''generated'': We now have 6 saved ''.nbt'' files. These can be found in our world save folder under ''generated'':
-[location]+ 
 +{{ https://i.imgur.com/ZKIoZT9.png?nolink&400 |Saved NBT files}} 
 For usage, we'll move these to ''resources/data/tutorial/structures'', where "tutorial" is your modid: For usage, we'll move these to ''resources/data/tutorial/structures'', where "tutorial" is your modid:
-[destination]+ 
 +{{ https://i.imgur.com/kaiy84U.png?nolink&400 |Moved NBT files}}
  
 The setup is complete! We now have 6 total squares. Let's briefly recap the goal: The setup is complete! We now have 6 total squares. Let's briefly recap the goal:
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 public void initialize(ChunkGenerator<?> chunkGenerator, StructureManager structureManager, int x, int z, Biome biome) { public void initialize(ChunkGenerator<?> chunkGenerator, StructureManager structureManager, int x, int z, Biome biome) {
     StructurePoolBasedGenerator.addPieces(BASE_POOL, 7, ExamplePiece::new, chunkGenerator, structureManager, new BlockPos(x * 16, 150, z * 16), children, random);     StructurePoolBasedGenerator.addPieces(BASE_POOL, 7, ExamplePiece::new, chunkGenerator, structureManager, new BlockPos(x * 16, 150, z * 16), children, random);
 +    setBoundingBoxFromChildren();
 } }
 </code> </code>
-The Identifier is the starting pool to select from, the int is the size of the entire structure (exact size per 1 is not determined-- is most likely chunks wide), and the 3rd argument is a factory for the piece we'll register in a second.+The Identifier is the starting pool to select from, the int is the size of the entire structure (with 7 being "7 squares out"), and the 3rd argument is a factory for the piece we'll register in a second.
  
 ==== Creating a Piece ==== ==== Creating a Piece ====
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 We'll need to register our structure as both a feature //and// a structure feature, and also register our piece. Registering your structure as a StructureFeature is optional, and is used for saving it to the chunk. If the world is stopped half-way through your structure loading, having this registered will allow it to continue after the world is re-opened. If it is not registered to a structure feature and this happens, the structure will stop half-way through (which would mostly only occur in larger, multiple chunk wide structures). We'll need to register our structure as both a feature //and// a structure feature, and also register our piece. Registering your structure as a StructureFeature is optional, and is used for saving it to the chunk. If the world is stopped half-way through your structure loading, having this registered will allow it to continue after the world is re-opened. If it is not registered to a structure feature and this happens, the structure will stop half-way through (which would mostly only occur in larger, multiple chunk wide structures).
 <code java [enable_line_numbers="true"]> <code java [enable_line_numbers="true"]>
-public static final Feature<DefaultFeatureConfig> EXAMPLE_FEATURE = Registry.register(+public static final StructureFeature<DefaultFeatureConfig> EXAMPLE_FEATURE = Registry.register(
  Registry.FEATURE,  Registry.FEATURE,
  new Identifier("tutorial", "example_feature"),  new Identifier("tutorial", "example_feature"),
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  Registry.STRUCTURE_FEATURE,  Registry.STRUCTURE_FEATURE,
  new Identifier("tutorial", "example_structure_feature"),  new Identifier("tutorial", "example_structure_feature"),
- new ExampleFeature(DefaultFeatureConfig::deserialize)+ EXAMPLE_FEATURE
 ); );
  
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 <code java [enable_line_numbers="false"]> <code java [enable_line_numbers="false"]>
 Registry.BIOME.forEach(biome -> { Registry.BIOME.forEach(biome -> {
- biome.addFeature(GenerationStep.Feature.RAW_GENERATION, Biome.configureFeature(EXAMPLE_FEATURE, new DefaultFeatureConfig(), Decorator.NOPE, DecoratorConfig.DEFAULT)); + biome.addFeature(GenerationStep.Feature.RAW_GENERATION, EXAMPLE_FEATURE.configure(new DefaultFeatureConfig()).createDecoratedFeature(Decorator.NOPE.configure(DecoratorConfig.DEFAULT))); 
- biome.addStructureFeature(EXAMPLE_STRUCTURE_FEATURE, new DefaultFeatureConfig());+ biome.addStructureFeature(EXAMPLE_FEATURE.configure(new DefaultFeatureConfig()));
 }); });
 </code> </code>
 +
 +=== Finished! ===
 +As you can see, we have a single white square in the center, with boxes going off the edges. Note that the radius in this screenshot was increased to 14 instead of the 7 used in the tutorial.
 +
 +{{ https://i.imgur.com/qndZzZu.png?nolink&600 |Finalized}}
 +=== Jigsaw Tips ===
 +Ideally, you do not want structure pieces to be bigger than 32x32x32, so breaking them into chunk-sized pieces is the best option. 
 +You cannot generate other structure pieces of the same pool through jigsaws. So, if you have a piece in pool A and you try to generate another piece, you will have to have another pool. 
tutorial/1.15/jigsaw.txt · Last modified: 2021/12/28 19:44 by banana