tweaks to swamp surface

src/main/java/com/terraforged/TerraWorld.java

@@ -73,6 +73,7 @@ public class TerraWorld extends WorldType {
         if (world.getDimension().getType() == DimensionType.OVERWORLD) {
             WorldInfo info = world.getWorldInfo();
             TerraSettings settings = SettingsHelper.getSettings(info);
+            settings.world.seed = world.getSeed();
             settings.dimensions.dimensions.apply(world.getWorldInfo());
 
             Terrains terrains = Terrains.create(settings);

src/main/java/com/terraforged/api/chunk/surface/SurfaceContext.java

@@ -35,7 +35,6 @@ import net.minecraft.world.gen.GenerationSettings;
 public class SurfaceContext extends DecoratorContext {
 
     public final long seed;
-    public final int seaLevel;
     public final BlockState solid;
     public final BlockState fluid;
     public final ChunkSurfaceBuffer buffer;
@@ -48,7 +47,6 @@ public class SurfaceContext extends DecoratorContext {
         this.solid = settings.getDefaultBlock();
         this.fluid = settings.getDefaultFluid();
         this.buffer = buffer;
-        this.seaLevel = levels.waterLevel;
         this.seed = seed;
     }
 }

src/main/java/com/terraforged/api/chunk/surface/builder/Delegate.java

@@ -60,7 +60,7 @@ public class Delegate implements Surface {
                 context.noise,
                 context.solid,
                 context.fluid,
-                context.seaLevel,
+                context.levels.waterLevel,
                 context.seed
         );
     }

src/main/java/com/terraforged/biome/surface/SwampSurface.java

@@ -22,13 +22,13 @@ public class SwampSurface implements Surface {
                     continue;
                 }
 
-                if (y == ctx.seaLevel && ctx.buffer.getBlockState(ctx.pos).getBlock() != ctx.fluid.getBlock()) {
+                if (y == ctx.levels.waterY && ctx.buffer.getBlockState(ctx.pos).getBlock() != ctx.fluid.getBlock()) {
                     ctx.buffer.setBlockState(ctx.pos, ctx.fluid, false);
                 }
                 break;
             }
         }
 
-        SurfaceBuilder.DEFAULT.buildSurface(ctx.random, ctx.buffer, ctx.biome, x, z, height, noise, ctx.solid, ctx.fluid, ctx.seaLevel, ctx.seed, config);
+        SurfaceBuilder.DEFAULT.buildSurface(ctx.random, ctx.buffer, ctx.biome, x, z, height, noise, ctx.solid, ctx.fluid, ctx.levels.waterLevel, ctx.seed, config);
     }
 }

src/main/java/com/terraforged/chunk/generator/TerrainGenerator.java

@@ -59,7 +59,7 @@ public class TerrainGenerator {
         container.getChunkReader().iterate(context, (cell, dx, dz, ctx) -> {
             int px = ctx.blockX + dx;
             int pz = ctx.blockZ + dz;
-            int top = ctx.chunk.getTopBlockY(Heightmap.Type.WORLD_SURFACE_WG, dx, dz) + 1;
+            int top = ctx.chunk.getTopBlockY(Heightmap.Type.WORLD_SURFACE_WG, dx, dz);
 
             ctx.buffer.setSurfaceLevel(top);