mirror of
https://github.com/DrBeef/Raze.git
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85 lines
1.9 KiB
Lua
85 lines
1.9 KiB
Lua
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local ffi = require("ffi")
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local ffiC = ffi.C
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local sector = sector
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local inside = inside
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local math = require("math")
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local xmath = require("xmath")
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local stat = require("stat")
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local function resetseed()
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math.randomseed(834572183572)
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end
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local function getmapbounds()
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local inf = 1/0
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local min = { x=inf, y=inf }
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local max = { x=-inf, y=-inf }
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for i=0,ffiC.numsectors-1 do
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for w in wallsofsect(i) do
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local wal = wall[w]
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min.x = math.min(wal.x, min.x)
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max.x = math.max(wal.x, max.x)
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min.y = math.min(wal.y, min.y)
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max.y = math.max(wal.y, max.y)
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end
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end
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return min, max
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end
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local function getpoints(n, min, max)
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local posns, sects = {}, {}
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resetseed()
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for i=1,n do
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local x = math.random(min.x, max.x)
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local y= math.random(min.y, max.y)
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posns[i] = xmath.vec2(x, y)
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sects[i] = math.random(0, ffiC.numsectors-1)
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end
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return posns, sects
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end
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-- Compare 'inside' implementations
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--
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-- N: number of calls
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function compinside(n)
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if (type(n) ~= "number") then
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error("N must be a number")
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end
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local sti = stat.new()
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local sts = stat.new()
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local min, max = getmapbounds()
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local posns, sects = getpoints(n, min, max)
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local isi, iss = {}, {}
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for i=1,n do
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local t = ffiC.gethiticks()
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isi[i] = inside(posns[i], sects[i])
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t = ffiC.gethiticks()-t
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sti:add(t)
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local t = ffiC.gethiticks()
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iss[i] = sector[sects[i]]:contains(posns[i])
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t = ffiC.gethiticks()-t
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sts:add(t)
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-- if (isi[i]~=iss[i]) then
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-- print("unequal: "..i.." "..sects[i].." "..posns[i].x.." "..posns[i].y.." ("..tostring(isi[i])..","..tostring(iss[i])..")")
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-- end
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assert(isi[i]==iss[i])
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end
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print("====================")
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print("inside(): " .. sti:getstatstr())
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print("contains(): " .. sts:getstatstr())
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end
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