Unable to get list of list.

𝓐pothicon · 2024-01-07T20:00:24.304Z

For some reason its not letting me .get() any of the inner-most lists.

J

JavaBot•1/7/24, 8:00 PM

J

JavaBot•1/7/24, 8:00 PM

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𝓐pothiconOP•1/7/24, 8:01 PM

I tried taking away the List.of(0) in the test and putting a breakpoint and it showed that 'test' was indeed a list containing two lists

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𝓐pothiconOP•1/7/24, 8:01 PM

but when I try to .get() either list it doesnt return a list

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𝓐pothiconOP•1/7/24, 8:03 PM

not even this works

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𝓐pothiconOP•1/7/24, 8:05 PM

doing the .get(0) directly instead of doing it like test.get(0) does get the list

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𝓐pothiconOP•1/7/24, 8:05 PM

very strange

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𝓐pothiconOP•1/7/24, 8:07 PM

well i cant specify a specific type because there are several different types of objects in the list

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𝓐pothiconOP•1/7/24, 8:08 PM

I have a list of maps that each contain a list of lists

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𝓐pothiconOP•1/7/24, 8:08 PM

list > map > list > list

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𝓐pothiconOP•1/7/24, 8:09 PM

whats difficult about it?

Bborgrel the problem is type erasure

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𝓐pothiconOP•1/7/24, 8:11 PM

only other thing i could think of was doing List<List<?>> instead of List<?> but that didnt solve it either (without the .get(0))

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𝓐pothiconOP•1/7/24, 8:13 PM

nope

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𝓐pothiconOP•1/7/24, 8:13 PM

they both implement FeatureElement but they dont extend the same of anything

Bborgrel and why r u putting entitytype blocks and a number into the same list??

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𝓐pothiconOP•1/7/24, 8:14 PM

im not

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𝓐pothiconOP•1/7/24, 8:14 PM

im putting a list of entitytype blocks and a number into the same list

�𝓐pothicon im putting a **list** of entitytype blocks and a number into the same list

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𝓐pothiconOP•1/7/24, 8:15 PM

so really the datastructure is more like
list>map>block/list>list>entitytype/int/list>block

Bborgrel but seriously, why a list instead of a record?

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𝓐pothiconOP•1/7/24, 8:15 PM

bc ive never heard of a record before lol

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𝓐pothiconOP•1/7/24, 8:17 PM

never heard of that before

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𝓐pothiconOP•1/7/24, 8:21 PM

the number is how many of the block needs to be surrounding the position in order for the mob to spawn there

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𝓐pothiconOP•1/7/24, 8:21 PM

so

List.of(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)

List.of(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)

List.of(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)

List.of(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)

means that there needs to be 4 grass or tall grass next to the position for the chicken to spawn

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𝓐pothiconOP•1/7/24, 8:23 PM

ye

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𝓐pothiconOP•1/7/24, 8:29 PM

Bborgrel and then u can just work with that ```java Map<EntityType, SpawnGenerator> ``` ...

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𝓐pothiconOP•1/7/24, 8:31 PM

well the map still needs a list of 'SpawnGenerator"

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𝓐pothiconOP•1/7/24, 8:31 PM

but yeah

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𝓐pothiconOP•1/7/24, 8:34 PM

how? I did list.of() and seperated them with commas lol

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𝓐pothiconOP•1/7/24, 8:35 PM

Map.of(Blocks.GRASS_BLOCK, List.of(
        new SpawnParameters(EntityType.SHEEP, List.of(Blocks.WHEAT), 1),
        new SpawnParameters(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)
)),

Map.of(Blocks.GRASS_BLOCK, List.of(
        new SpawnParameters(EntityType.SHEEP, List.of(Blocks.WHEAT), 1),
        new SpawnParameters(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)
)),

Map.of(Blocks.GRASS_BLOCK, List.of(
        new SpawnParameters(EntityType.SHEEP, List.of(Blocks.WHEAT), 1),
        new SpawnParameters(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)
)),

Map.of(Blocks.GRASS_BLOCK, List.of(
        new SpawnParameters(EntityType.SHEEP, List.of(Blocks.WHEAT), 1),
        new SpawnParameters(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)
)),

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𝓐pothiconOP•1/7/24, 8:35 PM

see this example

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𝓐pothiconOP•1/7/24, 8:35 PM

there is a list containing two SpawnParameters records

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𝓐pothiconOP•1/7/24, 8:37 PM

aka they are seperate elments

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𝓐pothiconOP•1/7/24, 8:38 PM

However I now can't get that list of spawn parameters for some reason

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𝓐pothiconOP•1/7/24, 8:38 PM

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𝓐pothiconOP•1/7/24, 8:39 PM

its saying this is a List<capture of ?>

List.of(
        new SpawnParameters(EntityType.SHEEP, List.of(Blocks.WHEAT), 1),
        new SpawnParameters(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)
)

List.of(
        new SpawnParameters(EntityType.SHEEP, List.of(Blocks.WHEAT), 1),
        new SpawnParameters(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)
)

List.of(
        new SpawnParameters(EntityType.SHEEP, List.of(Blocks.WHEAT), 1),
        new SpawnParameters(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)
)

List.of(
        new SpawnParameters(EntityType.SHEEP, List.of(Blocks.WHEAT), 1),
        new SpawnParameters(EntityType.CHICKEN, List.of(Blocks.GRASS, Blocks.TALL_GRASS), 4)
)

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