class="kw">package com.hypixel.hytale.procedurallib.logic;

class="kw">import com.hypixel.hytale.procedurallib.NoiseFunction;
class="kw">import com.hypixel.hytale.procedurallib.condition.IIntCondition;
class="kw">import com.hypixel.hytale.procedurallib.logic.cell.GridCellDistanceFunction;
class="kw">import org.joml.Vector2i;

class="kw">public class MeshNoise class="kw">implements NoiseFunction {
   class="kw">public class="kw">static class="kw">final Vector2i[] ADJACENT_CELLS = new Vector2i[]{new Vector2i(-1, 0), new Vector2i(0, -1), new Vector2i(1, 0), new Vector2i(0, 1)};
   class="kw">private class="kw">final IIntCondition density;
   class="kw">private class="kw">final double thickness;
   class="kw">private class="kw">final double thicknessSquared;
   class="kw">private class="kw">final double jitterX;
   class="kw">private class="kw">final double jitterY;

   class="kw">public MeshNoise(IIntCondition var1, double var2, double var4, double var6) {
      this.density = var1;
      this.thickness = var2;
      this.thicknessSquared = var2 * var2;
      this.jitterX = var4;
      this.jitterY = var6;
   }

   @Override
   class="kw">public double get(int var1, int var2, double var3, double var5) {
      double var7 = this.thickness;
      double var9 = this.thicknessSquared;
      int var11 = GeneralNoise.fastFloor(var3);
      int var12 = GeneralNoise.fastFloor(var5);
      double var13 = var3 - var11;
      double var15 = var5 - var12;

      for (int var17 = 0; var17 < 8; var17++) {
         class="kw">switch (var17) {
            case 0:
               if (var13 >= var7 || var15 >= var7) {
                  class="kw">continue;
               }
               break;
            case 1:
               if (var13 >= var7) {
                  class="kw">continue;
               }
               break;
            case 2:
               if (var13 >= var7 || var15 < 1.0 - var7) {
                  class="kw">continue;
               }
               break;
            case 3:
               if (var15 >= var7) {
                  class="kw">continue;
               }
            case 4:
            class="kw">default:
               break;
            case 5:
               if (var15 < 1.0 - var7) {
                  class="kw">continue;
               }
               break;
            case 6:
               if (var13 < 1.0 - var7 || var15 >= var7) {
                  class="kw">continue;
               }
               break;
            case 7:
               if (var13 < 1.0 - var7) {
                  class="kw">continue;
               }
         }

         int var18 = var17 / 3;
         int var19 = var17 % 3;
         int var20 = var11 + var18 - 1;
         int var21 = var12 + var19 - 1;
         int var22 = GridCellDistanceFunction.getHash(var2, var20, var21);
         if (this.density.eval(var22)) {
            DoubleArray.Double2 var23 = CellularNoise.CELL_2D[var22 & 0xFF];
            double var24 = var23.x * this.jitterX;
            double var26 = var23.y * this.jitterY;
            double var28 = var20 + var24;
            double var30 = var21 + var26;
            double var32 = var3 - var28;
            double var34 = var5 - var30;

            for (Vector2i var39 : ADJACENT_CELLS) {
               int var40 = var20 + var39.x;
               int var41 = var21 + var39.y;
               int var42 = GridCellDistanceFunction.getHash(var2, var40, var41);
               if (this.density.eval(var42)) {
                  DoubleArray.Double2 var43 = CellularNoise.CELL_2D[var42 & 0xFF];
                  double var44 = var43.x * this.jitterX;
                  double var46 = var43.y * this.jitterY;
                  double var48 = var39.x + var44 - var24;
                  double var50 = var39.y + var46 - var26;
                  double var52 = (var32 * var48 + var34 * var50) / (var48 * var48 + var50 * var50);
                  if (var52 < 0.0) {
                     var52 = 0.0;
                  } else if (var52 > 1.0) {
                     var52 = 1.0;
                  }

                  double var54 = var28 + var48 * var52;
                  double var56 = var30 + var50 * var52;
                  double var58 = var3 - var54;
                  double var60 = var5 - var56;
                  double var62 = var58 * var58 + var60 * var60;
                  if (var62 < var9) {
                     var9 = var62;
                  }
               }
            }
         }
      }

      if (var9 != this.thicknessSquared) {
         double var64 = Math.sqrt(var9);
         double var65 = var64 / var7;
         class="kw">return var65 * 2.0 - 1.0;
      } else {
         class="kw">return 1.0;
      }
   }

   @Override
   class="kw">public double get(int var1, int var2, double var3, double var5, double var7) {
      throw new UnsupportedOperationException("3d not supported");
   }
}