kopia lustrzana https://github.com/ogre/habboy
96 wiersze
2.3 KiB
Lua
96 wiersze
2.3 KiB
Lua
node_keys = {}
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G_DEFAULT = 0
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G_COUNTS = {}
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function zoom_tile_area(latitude_degrees, zoom_level)
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earth_equatorial_circumference = 40075016.686 -- meters
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latitude_radians = 3.14159265359 * latitude_degrees / 180.0
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tile_width = earth_equatorial_circumference * math.cos(latitude_radians) / (2^zoom_level)
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return tile_width*tile_width
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end
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-- store m2 area for one tile on each zoom level
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ZOOM_TILES_AREA = {}
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function init_function()
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for i=1,16 do
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ZOOM_TILES_AREA[i] = zoom_tile_area(52.0, i)
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print(ZOOM_TILES_AREA[i])
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end
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end
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local function is_in (val, tab)
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for index, value in ipairs(tab) do
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if value == val then
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return true
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end
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end
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return false
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end
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function get_min_zoom(in_area)
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local min_zoom = 1
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for _z=15,1,-1 do
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if in_area < (0.01 * ZOOM_TILES_AREA[_z]) then
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return _z
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end
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end
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return min_zoom
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end
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function exit_function()
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for _k,_v in pairs(G_COUNTS)
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do
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print("\n")
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print(_k)
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for k,v in pairs(_v)
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do
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print("\t", k, v)
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end
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end
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end
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function node_function(node)
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end
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function way_function(way)
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local name = way:Find("name");
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-- Landuse
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local landuse = way:Find("landuse")
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if landuse ~= nil and landuse ~= "" then
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if G_COUNTS["landuse"] == nil then G_COUNTS["landuse"] = {} end
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if G_COUNTS["landuse"][landuse] == nil then G_COUNTS["landuse"][landuse] = 0 end
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G_COUNTS["landuse"][landuse] = G_COUNTS["landuse"][landuse] + 1
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local layer = "landuse"
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way:Layer(layer, way:IsClosed())
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way:Attribute("class", landuse)
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way:MinZoom( get_min_zoom(way:Area()) )
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if name ~= nil and name ~= "" then way:Attribute("name",name) end
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end
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-- Natural
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local natural = way:Find("natural")
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if natural ~= nil and natural ~= "" then
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if G_COUNTS["natural"] == nil then G_COUNTS["natural"] = {} end
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if G_COUNTS["natural"][natural] == nil then G_COUNTS["natural"][natural] = 0 end
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G_COUNTS["natural"][natural] = G_COUNTS["natural"][natural] + 1
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if is_in( natural, { "wood", "forest", "scrub", "heath", "grassland", "fell", "bare_rock", "scree", "shingle", "sand", "meadow" } ) then
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local layer = "natural"
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way:Layer(layer, way:IsClosed())
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way:Attribute("class", natural)
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way:MinZoom( get_min_zoom(way:Area()) )
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if name ~= nil and name ~= "" then way:Attribute("name",name) end
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end
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end
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end |