my block_picker feature with the change
{
"format_version": "1.13.0",
"minecraft:scatter_feature": {
"description": {
"identifier": "ken:biome_overworld/block_picker_overworld"
},
"places_feature": "ken:biome_overworld/enchanted_plain",
"iterations": "v.o = q.noise(v.originx/128, v.originz/128)*0.25;v.px = v.originx/256 + v.o;v.pz = v.originz/256 + v.o;t.r = 0;v.n1 = 999;v.n2 = 999;v.i = 0;loop(9,{ v.x = math.mod(v.i,3) - 1; v.z = math.floor(v.i/3) - 1; v.p2x = math.floor(v.px) + v.x; v.p2z = math.floor(v.pz) + v.z; v.rx = 0; v.rz = 0; v.p3x = math.mod(v.p2x*0.1031,1); v.p3y = math.mod(v.p2z*0.1030,1); v.p3z = math.mod(v.p2x*0.0973,1); v.p3d = v.p3x*(v.p3y + 33.33) + v.p3y*(v.p3z + 33.33) + v.p3z*(v.p3x + 33.33); v.p3x = v.p3x + v.p3d; v.p3y = v.p3y + v.p3d; v.p3z = v.p3z + v.p3d; v.rx = math.mod((v.p3x + v.p3y)*v.p3z,1); v.rz = math.mod((v.p3x + v.p3z)*v.p3y,1); v.d4x = v.p2x + v.rx - v.px; v.d4z = v.p2z + v.rz - v.pz; v.d2 = v.d4x*v.d4x + v.d4z*v.d4z; (v.d2 < v.n1) ? { v.n2 = v.n1; v.n1 = v.d2; t.r = v.rx; } : { (v.d2 < v.n2) ? { v.n2 = v.d2; }; }; v.i = v.i + 1;});t.d = math.abs(math.sqrt(v.n2) - math.sqrt(v.n1));t.biome_idx = math.floor(t.r*4);return 1;",
"x": 0,
"y": 0,
"z": 0
}
}