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update

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HybridDog 2014-02-09 12:43:46 +01:00
parent 4b6b8d6266
commit cc62ddeed8
2 changed files with 26 additions and 3 deletions
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3
README.txt
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@ -1,3 +1,2 @@
TODO:
— add fine_line
— a function to stop calculating the path
— add a function to stop calculating the path

26
init.lua
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@ -89,10 +89,34 @@ local function return_line(pos, dir, range) --range ~= length
return tab
end
local function return_fine_line(pos, dir, range, scale)
local ps1 = return_line(vector.round(vector.multiply(pos, scale)), dir, range*scale)
local ps2 = {vector.round(vector.divide(ps1[1], scale))}
local ps2_num = 2
for _,p1 in ipairs(ps1) do
local p2 = vector.round(vector.divide(p1, scale))
if p2 ~= ps2[ps2_num-1] then
ps2[ps2_num] = p2
ps2_num = ps2_num+1
end
end
return ps2
end
function vector.fine_line(pos, dir, range, scale)
--assert_vector(pos)
if not range then --dir = pos2
dir = vector.direction(pos, dir)
range = vector.distance(pos, dir)
end
return return_fine_line(pos, dir, range, scale)
end
function vector.line(pos, dir, range)
--assert_vector(pos)
if not range then --dir = pos2
return return_line(pos, vector.direction(pos, dir), vector.distance(pos, dir))
dir = vector.direction(pos, dir)
range = vector.distance(pos, dir)
end
return return_line(pos, dir, range)
end