67 lines
2.8 KiB
Java
67 lines
2.8 KiB
Java
package com.terraforged.mod.chunk.generator;
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import com.terraforged.api.chunk.column.ColumnDecorator;
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import com.terraforged.api.biome.surface.ChunkSurfaceBuffer;
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import com.terraforged.api.biome.surface.SurfaceContext;
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import com.terraforged.mod.chunk.TerraChunkGenerator;
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import com.terraforged.mod.chunk.util.FastChunk;
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import com.terraforged.mod.chunk.util.TerraContainer;
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import com.terraforged.core.tile.chunk.ChunkReader;
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import net.minecraft.util.SharedSeedRandom;
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import net.minecraft.world.chunk.IChunk;
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import net.minecraft.world.gen.Heightmap;
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import net.minecraft.world.gen.INoiseGenerator;
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import net.minecraft.world.gen.PerlinNoiseGenerator;
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import net.minecraft.world.gen.WorldGenRegion;
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public class SurfaceGenerator implements Generator.Surfaces {
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private final TerraChunkGenerator generator;
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private final INoiseGenerator surfaceNoise;
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public SurfaceGenerator(TerraChunkGenerator generator) {
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this.generator = generator;
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this.surfaceNoise = new PerlinNoiseGenerator(new SharedSeedRandom(generator.getSeed()), 3, 0);
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}
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@Override
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public final void generateSurface(WorldGenRegion world, IChunk chunk) {
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try (ChunkReader reader = generator.getChunkReader(chunk.getPos().x, chunk.getPos().z)) {
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TerraContainer container = TerraContainer.getOrCreate(chunk, reader, generator.getBiomeProvider());
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ChunkSurfaceBuffer buffer = new ChunkSurfaceBuffer(FastChunk.wrap(chunk));
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try (SurfaceContext context = generator.getContext().surface(buffer, generator.getSettings())) {
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reader.iterate(context, (cell, dx, dz, ctx) -> {
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int px = ctx.blockX + dx;
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int pz = ctx.blockZ + dz;
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int top = ctx.chunk.getTopBlockY(Heightmap.Type.WORLD_SURFACE_WG, dx, dz);
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ctx.buffer.setSurfaceLevel(top);
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ctx.cell = cell;
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ctx.biome = container.getBiome(dx, dz);
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ctx.noise = getSurfaceNoise(px, pz) * 15D;
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generator.getSurfaceManager().getSurface(ctx).buildSurface(px, pz, top, ctx);
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int py = ctx.levels.scale(cell.value);
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for (ColumnDecorator processor : generator.getBaseDecorators()) {
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processor.decorate(ctx.buffer, ctx, px, py, pz);
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}
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});
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FastChunk.updateWGHeightmaps(chunk, context.pos);
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}
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}
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}
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private double getSurfaceNoise(int x, int z) {
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double scale = 0.0625D;
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double noiseX = x * scale;
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double noiseZ = z * scale;
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double unusedValue1 = scale;
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double unusedValue2 = (x & 15) * scale;
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return surfaceNoise.noiseAt(noiseX, noiseZ, unusedValue1, unusedValue2);
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}
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}
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