init

notes.txt

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+higher frequency -> more random variation quicker
+amplitude (or multiplier) -> how much it adds to the output
+
+---
+Rainfall: Dry -> Wet (desert -> rainforest)
+ Variation (seasonality)
+Altitude: Low -> High (deep ocean -> mountains)
+ Variation (flat -> craggy)
+Temperature: Freezing -> Boiling (arctic -> desert)
+ Variation (seasonality)
+Soil: Soft -> Hard (fertile soil -> hard rock)
+ Variation (seasonality, would only apply for soil?)
+---
+Spring: warmer, wetter
+Summer: dry, hot
+Fall: dry, cooling
+Winter: cold, wet
+
+Vegetation: None -> Covered (barren -> rainforest)
+ Variation (seasonality)
+
+Rainforest: >0.75 rain, >0.5 and <0.75 temperature
+Desert: <0.25 rain, >0.6 or <0.3 temperature
+Tundra: <0.25 temperature, <0.5 rain
+Taiga: <0.1 temperature, >0.25 rain?
+Grassland: <0.4 and >0.25 rain, >0.25 temperature
+Savanna: >0.4 and <0.6? rain, >0.25 temperature
+
+Tropical Rainforest: wet & wetter seasons, warm year-round
+Temperate Forest: four distinct seasons (fall, winter, spring, summer)
+Desert: rare rain, extreme heat and cold
+Tundra: flat and cold, shallow soil and permafrost below it, growth only in summer
+Taiga: long cold winters, needle-leaf trees
+Grassland: just wet enough for grasses, herbs, and herbavores to survive
+Savanna: slightly wetter than grassland, some trees appear, tall-legged animals
+  Freshwater: lakes, streams, rivers
+  Marine: salt-water oceans
+
+Temperature should change based on height.
+
+Cold, dry, green. Biome categories separated by temperature.
+(Should also separate based on waterfall?)
+Aquatic vs land. Dry vs wet. Lush?
+
+MC biomes:
+- Snowy Tundra
+- Ice Spikes
+- Snowy Taiga
+- Snowy Taiga Mountains
+- Frozen River
+- Snowy Beach
+- Mountains
+- Gravelly Mountains
+- Wooded Mountains
+- Taiga
+- Taiga Mountains
+- Giant Tree Taiga
+- Giant Spruce Taiga
+- Stone Shore
+- Plains
+- Sunflower Plains
+- Forest
+- Flower Forest
+- Birch Forest
+- Tall Birch Forest
+- Dark Forest
+- Dark Forest Hills
+- Swamp
+- Swamp Hills
+- Jungle
+- Modified Jungle
+- Jungle Edge
+- Modified Jungle Edge
+- River
+- Beach
+- Mushroom Fields
+- Mushroom Field Shore
+- The End
+- Small End Islands
+- End Midlands
+- End Highlands
+- End Barrens
+- Desert
+- Desert Lakes
+- Savanna
+- Shattered Savanna
+- Badlands
+- Eroded Badlands
+- Wooded Badlands Plateau
+- Modified Wooded Badlands Plateau
+- Plateau
+- Modified Plateau (much more shattered)
+- Nether
+- Warm Ocean
+- Lukewarm Ocean
+- Deep Lukewarm Ocean
+- Ocean
+- Deep Ocean
+- Cold Ocean
+- Deep Cold Ocean
+- Frozen Ocean
+- Deep Frozen Ocean
+- The Void
+- * Hills

src/main.moon

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+w, h = love.graphics.getDimensions!
+cellSize = 5
+
+-- Rainfall: Dry -> Wet (desert -> rainforest)
+--  Variation (seasonality)
+-- Altitude: Low -> High (deep ocean -> mountains)
+--  Variation (flat -> craggy)
+-- Temperature: Freezing -> Boiling (arctic -> desert)
+--  Variation (seasonality)
+-- Soil: Soft -> Hard (fertile soil -> hard rock)
+--  Variation (seasonality, would only apply for soil?)
+
+colors = {
+  desert: { 255/255, 210/255, 33/255, 1 }
+  ocean: { 73/255, 132/255, 252/255, 1 }
+  mountains: { 140/255, 58/255, 0, 1 }
+  "tropical rainforest": { 8/255, 71/255, 0, 1}
+  tundra: { 196/255, 0, 26/255, 1 }
+  taiga: { 175/255, 45/255, 63/255, 1 }
+  grassland: { 38/255, 160/255, 1/255, 1 }
+  savanna: { 183/255, 141/255, 14/255, 1 }
+}
+
+biomes = {
+  desert: { precipitation: { 0, 0.2 } }
+  ocean: { altitude: { 0, 1/3 } }
+  mountains: { altitude: { 0.8, 1 } }
+  "tropical rainforest": { precipitation: { 0.8, 1 }, temperature: { 0.8, 1, variation: { 0, 0.2 } } }
+  tundra: { altitude: { 0, 1, variation: { 0, 0.1 } }, temperature: { 0, 1/3 } }
+  taiga: { temperature: { 0.1, 1/3, variation: { 0, 1/3 } }, precipitation: { 0.2, 0.5 } }
+  grassland: { precipitation: { 0.2, 1/3 } }
+  savanna: { precipitation: { 1/3, 0.42 } }
+}
+
+-- Temperate Forest: four distinct seasons (fall, winter, spring, summer)
+--   Freshwater: lakes, streams, rivers
+--   Marine: salt-water oceans
+
+map = {}
+map.set = (x, y, v) ->
+  map[x] = {} unless map[x]
+  map[x][y] = v
+map.get = (x, y) ->
+  if map[x]
+    return map[x][y] or { 0, 0, 0, 1 }
+  else
+    return { 0, 0, 0, 1 }
+
+love.load = ->
+  for x = 1, w / cellSize
+    for y = 1, h / cellSize
+      r = love.math.noise x / 10, y / 10
+      map.set x, y, { r, r, r, 1 }
+
+love.draw = ->
+  for x = 1, w / cellSize
+    for y = 1, h / cellSize
+      love.graphics.setColor map.get x, y
+      love.graphics.rectangle "fill", (x - 1) * cellSize, (y - 1) * cellSize, cellSize, cellSize
+
+  love.graphics.setColor 0, 0, 0, 1/3
+  love.graphics.rectangle "fill", 0, 0, w, 16
+  love.graphics.setColor 1, 1, 1, 1
+  love.graphics.print love.timer.getFPS!
+
+love.keypressed = (key) -> love.event.quit!

tmp/main.moon

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+p = {}
+scale = 200
+for i=1,5000
+  t = love.math.random!
+  r = love.math.random!
+  if r > t
+    tmp = r
+    r = t
+    t = tmp
+  table.insert p, t
+  table.insert p, r
+
+love.draw = ->
+  love.graphics.translate 0, scale
+  love.graphics.scale scale, -scale
+  -- love.graphics.points p
+
+  for i = 1, #p - 1, 2
+    t = p[i]
+    r = p[i+1]
+
+    R = 2/3 - r - (t - 1)
+    G = 2/3 + t / 3 - r / 4
+    B = 1 - t - r
+
+    if true
+      n = (G + B) / 2
+      R = (R + n * 2) / 2
+      G = (G + n) / 2
+      B = (B + n) / 2
+
+    if false and t - r * 5 > 0
+      R = (R + G) / 2
+      G = R - 0.2
+    if false and r > t * 3/4
+      n = R - (1 - t)
+      R = (R + n) / 2
+    if true
+      --R -= t - 1
+      G -= (t - 1) / 5
+    if false
+      R = 1
+      G = 0
+      B = 0
+    love.graphics.setColor R, G, B, 1
+    love.graphics.points t, r
+
+love.keypressed = (key) ->
+  love.event.quit! if key == "escape"