47 lines
938 B
Lua
47 lines
938 B
Lua
blockgame.vector = blockgame.vector or {}
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local api = blockgame.vector
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api.horizontal_directions = {
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west = vector.new(-1, 0, 0),
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east = vector.new(1, 0, 0),
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south = vector.new(0, 0, -1),
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north = vector.new(0, 0, 1),
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}
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api.sides = api.horizontal_directions
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api.directions = {
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west = vector.new(-1, 0, 0),
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east = vector.new(1, 0, 0),
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down = vector.new(0, -1, 0),
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up = vector.new(0, 1, 0),
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south = vector.new(0, 0, -1),
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north = vector.new(0, 0, 1),
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}
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api.dirs = api.directions
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local function get_keys (tab)
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local keyset = {}
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local n = 0
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for key, value in pairs(tab) do
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n = n + 1
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keyset[n] = key
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end
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return keyset
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end
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local function random_element (tab)
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local keys = get_keys(tab)
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return tab[keys[math.random(#keys)]]
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end
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function api.random_dir ()
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return random_element(api.dirs)
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end
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function api.random_side ()
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return random_element(api.sides)
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end
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function api.get_below (pos)
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return pos + api.dirs.down
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end
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