SlimeLevelGenerator extends FlatLevelSource, setting sea level to -63 and disabling sea-level-dependent mob spawning #166
Description
In SlimeLevelGenerator.java, the class extends FlatLevelSource, which by default sets the sea level to -63. This causes unintended side effects — specifically, mobs that depend on sea-level conditions (like Squids, Turtles, etc.) will not spawn as expected.
public class SlimeLevelGenerator extends FlatLevelSource {
public SlimeLevelGenerator(Holder<Biome> biome) {
super(new FlatLevelGeneratorSettings(Optional.empty(), biome, List.of()), getSource(biome));
}
// ...
}Issue
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FlatLevelSource hardcodes the sea level to -63.
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Many mob spawns are tied to being near or above sea level (y = 63 in vanilla).
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This results in no spawning for mobs like Squids, Turtles, and other sea-level dependant creatures.
Suggested fix
- Either allow a configurable sea level or set it explicitly to a vanilla-expected value (like 63).