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work on frozen ocean surface

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dags- 2020-03-21 16:07:02 +00:00
parent 48d67e6da5
commit d63e14acaf
1 changed files with 29 additions and 3 deletions
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32
TerraForgedMod/src/main/java/com/terraforged/mod/decorator/surface/FrozenOcean.java
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@ -28,10 +28,12 @@ package com.terraforged.mod.decorator.surface;
import com.terraforged.api.chunk.surface.Surface;
import com.terraforged.api.chunk.surface.SurfaceContext;
import com.terraforged.api.material.state.States;
import com.terraforged.core.cell.Cell;
import com.terraforged.core.world.heightmap.Levels;
import com.terraforged.mod.chunk.TerraContext;
import me.dags.noise.Module;
import me.dags.noise.Source;
import me.dags.noise.util.NoiseUtil;
import net.minecraft.block.BlockState;
import net.minecraft.util.math.BlockPos;
import net.minecraft.world.gen.surfacebuilders.SurfaceBuilder;
@ -45,6 +47,9 @@ public class FrozenOcean implements Surface {
private final Module seaFloor;
private final Levels levels;
private final float minDepth;
private final float depthRange;
public FrozenOcean(TerraContext context, int height, int depth) {
Levels levels = context.levels;
Module shape = Source.perlin(context.seed.next(), 65, 3)
@ -74,14 +79,19 @@ public class FrozenOcean implements Surface {
this.seaFloor = Source.perlin(context.seed.next(), 50, 1)
.scale(levels.scale(3))
.bias(levels.scale(1));
this.minDepth = levels.water(-3);
this.depthRange = levels.scale(7);
}
@Override
public void buildSurface(int x, int z, int height, SurfaceContext ctx) {
float alpha = alpha(ctx.cell);
int center = levels.waterLevel - 5;
int top = center + (int) (up.getValue(x, z) * levels.worldHeight);
int topDepth = (int) (bergTop.getValue(x, z) * levels.worldHeight);
int bottom = center - (int) (down.getValue(x, z) * levels.worldHeight);
int top = center + (int) (up.getValue(x, z) * levels.worldHeight * alpha);
int topDepth = (int) (bergTop.getValue(x, z) * levels.worldHeight * alpha);
int bottom = center - (int) (down.getValue(x, z) * levels.worldHeight * alpha);
// set iceberg materials
BlockPos.Mutable pos = new BlockPos.Mutable(x, height, z);
@ -106,4 +116,20 @@ public class FrozenOcean implements Surface {
}
return States.PACKED_ICE.get();
}
private float alpha(Cell<?> cell) {
if (cell.value > minDepth) {
return 0;
}
float alpha = 1F;
float delta = minDepth - cell.value;
if (delta < depthRange) {
alpha -= ((depthRange - delta) / depthRange);
}
alpha *= NoiseUtil.map(cell.riverMask, 0.3F, 1F, 0.7F);
return NoiseUtil.clamp(alpha, 0, 1);
}
}