52 lines
2.1 KiB
Plaintext
52 lines
2.1 KiB
Plaintext
import random, noise from love.math
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class World
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new: =>
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@generateSeed!
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get: (x, y) =>
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map = @map
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unless map[x]
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map[x] = {}
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unless map[x][y]
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p = @precipitation(x, y)
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-- map[x][y] = { 1 - p, 1 - p, 1, 1 }
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h = @height(x, y)
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-- map[x][y] = { h, h, h, 1 }
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t = @temperature(x, y)
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-- map[x][y] = { t, 0, 0, 1 }
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map[x][y] = { t, h, p, 1 }
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return map[x][y]
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generateSeed: =>
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@map = {}
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@precipitationXOffset = random! * 256
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@precipitationYOffset = random! * 256
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@precipitationScale = random! * 0.009 + 0.001
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@temperatureXOffset = random! * 256
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@temperatureYOffset = random! * 256
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@temperatureScale = random! * 0.009 + 0.001
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@heightXOffset = random! * 256
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@heightYOffset = random! * 256
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@heightScale = random! * 0.009 + 0.001
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@heightAmplitude = random! * 0.9 + 0.1 -- max: 1, min: 0.1
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@heightXOffset2 = random! * 256
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@heightYOffset2 = random! * 256
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@heightScale2 = random! * 0.012 + 0.008
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@heightAmplitude2 = random! * 0.09 + 0.01 -- max: 0.1, min: 0.01
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@heightXOffset3 = random! * 256
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@heightYOffset3 = random! * 256
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@heightScale3 = random! * 0.092 + 0.01
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@heightAmplitude3 = random! * 0.009 + 0.001 -- max: 0.01, min: 0.001
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precipitation: (x, y) =>
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return noise((x + @precipitationXOffset) * @precipitationScale, (y + @precipitationYOffset) * @precipitationScale)
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temperature: (x, y) =>
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return noise((x + @temperatureXOffset) * @temperatureScale, (y + @temperatureYOffset) * @temperatureScale)
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height: (x, y) =>
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h = noise((x + @heightXOffset) * @heightScale, (y + @heightYOffset) * @heightScale) * @heightAmplitude +
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noise((x + @heightXOffset2) * @heightScale2, (y + @heightYOffset2) * @heightScale2) * @heightAmplitude2 +
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noise((x + @heightXOffset3) * @heightScale3, (y + @heightYOffset3) * @heightScale3) * @heightAmplitude3
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-- max: 1.11, min: 0.111
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-- slope = (output_end - output_start) / (input_end - input_start)
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-- output = output_start + slope * (input - input_start)
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slope = 1 / (1.11 - 0.111)
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return slope * (h - 0.111)
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