feat: heightmap-inputs

res/content/base/generators/demo.files/biomes.toml

@@ -1,6 +1,6 @@
 [forest]
 parameters = [
-    {weight=1, value=1},
+    {weight=1, value=0},
     {weight=0.5, value=0.2}
 ]
 layers = [
@@ -28,8 +28,8 @@ structures = [
 
 [desert]
 parameters = [
-    {weight=0.3, value=0},
-    {weight=0.1, value=0}
+    {weight=1.0, value=1},
+    {weight=0.5, value=0}
 ]
 layers = [
     {height=6, block="base:sand"},
@@ -43,8 +43,8 @@ sea-layers = [
 
 [plains]
 parameters = [
-    {weight=0.6, value=0.5},
-    {weight=0.6, value=0.5}
+    {weight=0.8, value=0.5},
+    {weight=0.8, value=0.0}
 ]
 layers = [
     {below-sea-level=false, height=1, block="base:grass_block"},

res/content/base/generators/demo.files/script.lua

@@ -43,7 +43,7 @@ function place_structures_wide(x, z, w, d, seed, chunk_height)
     return placements
 end
 
-function generate_heightmap(x, y, w, h, seed, s)
+function generate_heightmap(x, y, w, h, seed, s, inputs)
     local umap = Heightmap(w, h)
     local vmap = Heightmap(w, h)
     umap.noiseSeed = seed
@@ -65,6 +65,12 @@ function generate_heightmap(x, y, w, h, seed, s)
     rivermap:pow(0.15)
     rivermap:max(0.5)
     map:mul(rivermap)
+
+    local desertmap = Heightmap(w, h)
+    desertmap.noiseSeed = seed
+    desertmap:cellnoise({x+52, y+326}, 0.3*s, 2, 0.2)
+    desertmap:add(0.4)
+    map:mixin(desertmap, inputs[1])
     return map
 end
 
@@ -72,6 +78,8 @@ function generate_biome_parameters(x, y, w, h, seed, s)
     local tempmap = Heightmap(w, h)
     tempmap.noiseSeed = seed + 5324
     tempmap:noise({x, y}, 0.04*s, 6)
+    tempmap:mul(0.5)
+    tempmap:add(0.5)
     local hummap = Heightmap(w, h)
     hummap.noiseSeed = seed + 953
     hummap:noise({x, y}, 0.04*s, 6)

res/content/base/generators/demo.toml

@@ -2,3 +2,4 @@
 # 2 - humidity
 biome-parameters = 2
 sea-level = 64
+heightmap-inputs = [1]