Add canyon biomes

biome-distribution/presets/rearth.yml

@@ -6,7 +6,7 @@ biomes:
     - << biome-distribution/extrusions/add_deep_dark.yml:extrusions
   provider:
     type: PIPELINE
-    resolution: 6
+    resolution: 4
     blend:
       amplitude: 6
       sampler:
@@ -27,6 +27,8 @@ biomes:
           ocean: 1
           land: 1
       stages:
+        # - << biome-distribution/stages/special/canyons.yml:stages
+        - << biome-distribution/stages/special/canyons.yml:stages
         - << biome-distribution/stages/coasts.yml:stages
         - << biome-distribution/stages/fill_coasts.yml:stages
         - << biome-distribution/stages/oceans.yml:stages

biome-distribution/stages/special/canyons.yml

@@ -0,0 +1,35 @@
+stages:
+  - type: REPLACE
+    sampler:
+      type: EXPRESSION
+      dimensions: 2
+      variables:
+        canyonStrength: ${customization.yml:biomeSpread.canyons.canyonAmount}
+      expression: |
+        min(max(-mask(x,z * 1.3) - canyonStrength, 0) * 18, 1) *
+        max((-abs(base(x,z)) + 0.3) * 2, 0) * (1 / 0.2)
+      samplers:
+        base:
+          dimensions: 2
+          type: OPEN_SIMPLEX_2S
+          frequency: 1 / ${customization.yml:biomeSpread.cellDistance} * 1
+        mask:
+          dimensions: 2
+          type: CELLULAR
+          frequency: 1 / ${customization.yml:biomeSpread.cellDistance} * 0.15
+          seed: 23456345
+    from: land
+    range:
+      min: ${customization.yml:biomeSpread.canyons.minY}
+      max: 319
+    to:
+      SELF: 16
+      _canyon: 7
+  - type: REPLACE
+    from: _canyon
+    sampler:
+      type: EXPRESSION 
+      expression: temperature(x, z)
+    to:
+      ICY_INCISIONS: 3
+      SANDY_SPLITS: 4

biomes/rearth/base/eq_canyon.yml

@@ -0,0 +1,42 @@
+id: EQ_CANYON
+type: BIOME
+abstract: true
+
+terrain:
+  sampler:
+    type: EXPRESSION
+    expression: -y + 73
+
+variables: &variables
+  canyonFloor: ${customization.yml:biomeSpread.canyons.minY} + 3
+  canyonStrength: ${customization.yml:biomeSpread.canyons.canyonAmount}
+
+carving:
+  sampler:
+    type: EXPRESSION
+    dimensions: 3
+    variables: *variables
+    expression: |
+      if (y < canyonFloor + base(x * 5, z * 5) * 4, 
+        -1,
+        if (min(max(-mask(x,z * 1.3) - canyonStrength, 0) * 18, 1) * max((-abs(base(x,z)) + 0.3) * 2, 0) * 2 > curve(y + (40 - canyonFloor)) + walls(x,y * 2,z) * 0.15 - 0.1, 
+          1, 
+          -1))
+    functions:
+      curve:
+        arguments: [x]
+        expression: 5.177726 - 0.179325*x + 0.0022188*x^2 - 0.000008863763*x^3
+    samplers:
+      base:
+        dimensions: 2
+        type: OPEN_SIMPLEX_2S
+        frequency: 1 / ${customization.yml:biomeSpread.cellDistance} * 1
+      mask:
+        dimensions: 2
+        type: CELLULAR
+        frequency: 1 / ${customization.yml:biomeSpread.cellDistance} * 0.15
+        seed: 23456345
+      walls:
+        dimensions: 3
+        type: OPEN_SIMPLEX_2S
+        frequency: 0.04

biomes/rearth/debug/variant_c.yml

@@ -1,7 +1,5 @@
 id: VARIANT_C
 type: BIOME
-extends:
-  - BASE
 color: $biomes/colors.yml:PLAINS
 
 vanilla: minecraft:plains

biomes/rearth/variants/canyon_arid.yml

@@ -0,0 +1,34 @@
+id: SANDY_SPLITS
+type: BIOME
+extends: [ EQ_CANYON, CARVING_LAND, BASE ]
+vanilla: minecraft:lush_caves
+color: $biomes/colors.yml:JUNGLE
+
+colors:
+  sky: 0xE2D3B3
+  fog: 0xE2D7C3
+  grass: 0x70E66D
+  foliage: 0x70E66D
+  water: 0x3F76E4
+  water-fog: 0x50533
+
+palette:
+  - TERRACOTTA_CANYON_HIGH: 319
+  - SAND_CANYON: ${customization.yml:biomeSpread.canyons.minY} + 5
+  - << meta.yml:palette-bottom
+
+slant:
+  - threshold: 0.75
+    palette:
+      - TERRACOTTA_CANYON_HIGH: 319
+      - TERRACOTTA_CANYON: 55
+      - << meta.yml:palette-bottom
+
+features:
+  landforms:
+    - GRANITE_BOULDERS_CANYON
+    - LARGE_LEAF_VINES_CANYON
+  flora:
+    - CACTUS_CANYON
+    - CAVE_GLOW_BERRIES
+    - CAVE_GLOW_LICHEN

biomes/rearth/variants/canyon_frozen.yml

@@ -0,0 +1,41 @@
+id: ICY_INCISIONS
+type: BIOME
+extends: [ EQ_CANYON, CARVING_LAND, BASE ]
+vanilla: minecraft:dripstone_caves
+color: $biomes/colors.yml:FROZEN_ARCHIPELAGO
+
+colors:
+  sky: 0xA5B0BD
+  fog: 0xD7D8E1
+  grass: 0x86B09B
+  foliage: 0x63A17E
+  water: 0x3F76E4
+  water-fog: 0x50533
+
+palette:
+  - TERRACOTTA_CANYON_ICE_HIGH: 319
+  - FROZEN_CANYON: ${customization.yml:biomeSpread.canyons.minY} + 5
+  - << meta.yml:palette-bottom
+
+slant:
+  - threshold: 0.75
+    palette:
+      - TERRACOTTA_CANYON_ICE_HIGH: 319
+      - TERRACOTTA_CANYON_ICE: 55
+      - << meta.yml:palette-bottom
+
+features:
+  slabs:
+    - SNOW_LAYERS
+  landforms:
+    - GRANITE_BOULDERS_CANYON
+    - CEILING_ICICLES
+  preprocessors:
+    # - LARGE_LEAF_VINES_CANYON_FROZEN
+  trees:
+    - COLD_EVERGREEN_TREES_CANYON
+    - TREE_SNOW_CANYON
+  postprocessors:
+    - CAVE_GLOW_BERRIES
+    - CAVE_GLOW_LICHEN
+    - LARGE_LEAF_VINES_CANYON_FROZEN

customization.yml

@@ -25,6 +25,10 @@ biomeSpread:
 
   mountainFrequency: 0.004  # shared frequence of some larger mountain biomes, allows them to blend easier
 
+  canyons:
+    minY: 25 # how deep down the canyons will go. This is an absolute Y height. Increase to make the canyons shallower
+    canyonAmount: 0.93 # How rare the canyons should be. Range 0-1, with 1 disabling all canyons
+
 # the below values are only partially used and will be removed/moved at some point in the future
 
 global-scale: 1

features/boulders/granite_boulders_canyon.yml

@@ -0,0 +1,29 @@
+id: GRANITE_BOULDERS_CANYON
+type: FEATURE
+
+distributor:
+  type: AND
+  distributors:
+    - type: PADDED_GRID
+      width: 8
+      padding: 5
+      salt: 2315
+    - type: SAMPLER
+      sampler:
+        type: PROBABILITY
+        sampler:
+          type: OPEN_SIMPLEX_2
+          salt: 8244
+          frequency: 0.01
+      threshold: 0.2
+
+locator:
+  type: SURFACE
+  range:
+    min: ${customization.yml:biomeSpread.canyons.minY}
+    max: 64
+
+structures:
+  distribution:
+    type: CONSTANT
+  structures: granite_boulder

features/misc/tree_snow_canyon.yml

@@ -0,0 +1,27 @@
+id: TREE_SNOW_CANYON
+type: FEATURE
+
+distributor:
+  type: "YES"
+
+locator:
+  type: PATTERN
+  range:
+    min: ${customization.yml:biomeSpread.canyons.minY}
+    max: ${meta.yml:ocean-level} + 1
+  pattern:
+    type: AND
+    patterns:
+      - type: MATCH_AIR
+        offset: 0
+      - type: MATCH_SET
+        blocks:
+          - minecraft:oak_leaves
+          - minecraft:spruce_leaves
+          - minecraft:birch_leaves
+        offset: -1
+
+structures:
+  distribution:
+    type: CONSTANT
+  structures: BLOCK:minecraft:snow

features/rearth/sinkhole_trees.yml

@@ -12,8 +12,8 @@ locator:
   locators:
     - type: TOP
       range: &range
-        min: $meta.yml:bottom-y
-        max: -30
+        min: 15
+        max: 50
     - type: PATTERN
       range: *range
       pattern:

features/vegetation/cactus_sparse_underground.yml

@@ -0,0 +1,35 @@
+id: CACTUS_CANYON
+type: FEATURE
+
+distributor:
+  type: SAMPLER
+  sampler:
+    type: POSITIVE_WHITE_NOISE
+    salt: 2586
+  threshold: 0.03
+
+locator:
+  type: AND
+  locators:
+    - type: SURFACE
+      range: &range
+        min: ${customization.yml:biomeSpread.canyons.minY}
+        max: ${customization.yml:biomeSpread.canyons.minY} + 20
+    - type: PATTERN
+      range: *range
+      pattern:
+        type: MATCH_SET
+        blocks:
+          - minecraft:sand
+        offset: -1
+    - type: ADJACENT_PATTERN
+      range: *range
+      match-all: true
+      pattern:
+        type: MATCH_AIR
+        offset: 0
+
+structures:
+  distribution:
+    type: CONSTANT
+  structures: cactus

features/vegetation/trees/cold_evergreen_trees_canyon.yml

@@ -0,0 +1,44 @@
+id: COLD_EVERGREEN_TREES_CANYON
+type: FEATURE
+
+distributor:
+  type: PADDED_GRID
+  width: 7
+  padding: 3
+  salt: 9591
+
+locator:
+  type: AND
+  locators:
+    - type: TOP
+      range: &range
+        min: ${customization.yml:biomeSpread.canyons.minY}
+        max: ${customization.yml:biomeSpread.canyons.minY} + 25
+    - type: PATTERN
+      range: *range
+      pattern:
+        type: MATCH_SET
+        blocks: $features/vegetation/meta.yml:plantable-blocks
+        offset: -1
+    - type: PATTERN
+      range: *range
+      pattern:
+        type: MATCH_SET
+        blocks:
+          - minecraft:snow
+          - minecraft:air
+        offset: 0
+
+structures:
+  distribution:
+    type: CELLULAR
+    return: CellValue
+    frequency: 0.03
+  structures:
+    - oak_tree_procedural: 12
+    - large_oak_tree_procedural: 1
+    - birch_tree_procedural: 4
+    - large_birch_tree_procedural: 1
+    - large_thin_birch_tree_procedural: 1
+    - large_oak_tree_procedural_2: 1
+    - spruce_tree_procedural: 10