28 lines
693 B
Lua
28 lines
693 B
Lua
function generate_heightmap(x, y, w, h)
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local umap = Heightmap(w, h)
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local vmap = Heightmap(w, h)
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umap:noise({x+521, y+73}, 0.05, 1, 20.8)
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umap:noise({x+51, y+75}, 0.05, 1, 21.8)
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vmap:noise({x+521, y+70}, 0.1, 3, 35.8)
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vmap:noise({x+95, y+246}, 0.15, 3, 35.8)
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local map = Heightmap(w, h)
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map:noise({x, y}, 0.02, 7, 0.2)
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map:noise({x, y}, 0.06, 8, 0.4, umap, vmap)
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map:mul(0.5)
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map:add(0.1)
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map:pow(2.0)
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local rivermap = Heightmap(w, h)
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rivermap:noise({x+21, y+12}, 0.1, 4)
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rivermap:abs()
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rivermap:mul(2.0)
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rivermap:pow(0.4)
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rivermap:max(0.6)
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map:add(0.4)
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map:mul(rivermap)
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map:add(-0.2)
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return map
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end
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