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Improved VoxelArea variable locality, thus performance 

Signed-off-by: Craig Robbins <kde.psych@gmail.com>
This commit is contained in:
Wouters Dorian 2014-11-09 10:25:39 +01:00 committed by Nils Dagsson Moskopp
parent 7999b22a29
commit d5b1f42ef1
Signed by: erle
GPG Key ID: A3BC671C35191080
1 changed files with 24 additions and 18 deletions
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42
builtin/game/voxelarea.lua
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@ -18,10 +18,11 @@ function VoxelArea:new(o)
end
function VoxelArea:getExtent()
local MaxEdge, MinEdge = self.MaxEdge, self.MinEdge
return {
x = self.MaxEdge.x - self.MinEdge.x + 1,
y = self.MaxEdge.y - self.MinEdge.y + 1,
z = self.MaxEdge.z - self.MinEdge.z + 1,
x = MaxEdge.x - MinEdge.x + 1,
y = MaxEdge.y - MinEdge.y + 1,
z = MaxEdge.z - MinEdge.z + 1,
}
end
@ -31,45 +32,50 @@ function VoxelArea:getVolume()
end
function VoxelArea:index(x, y, z)
local i = (z - self.MinEdge.z) * self.zstride +
(y - self.MinEdge.y) * self.ystride +
(x - self.MinEdge.x) + 1
local MinEdge = self.MinEdge
local i = (z - MinEdge.z) * self.zstride +
(y - MinEdge.y) * self.ystride +
(x - MinEdge.x) + 1
return math.floor(i)
end
function VoxelArea:indexp(p)
local i = (p.z - self.MinEdge.z) * self.zstride +
(p.y - self.MinEdge.y) * self.ystride +
(p.x - self.MinEdge.x) + 1
local MinEdge = self.MinEdge
local i = (p.z - MinEdge.z) * self.zstride +
(p.y - MinEdge.y) * self.ystride +
(p.x - MinEdge.x) + 1
return math.floor(i)
end
function VoxelArea:position(i)
local p = {}
local MinEdge = self.MinEdge
i = i - 1
p.z = math.floor(i / self.zstride) + self.MinEdge.z
p.z = math.floor(i / self.zstride) + MinEdge.z
i = i % self.zstride
p.y = math.floor(i / self.ystride) + self.MinEdge.y
p.y = math.floor(i / self.ystride) + MinEdge.y
i = i % self.ystride
p.x = math.floor(i) + self.MinEdge.x
p.x = math.floor(i) + MinEdge.x
return p
end
function VoxelArea:contains(x, y, z)
return (x >= self.MinEdge.x) and (x <= self.MaxEdge.x) and
(y >= self.MinEdge.y) and (y <= self.MaxEdge.y) and
(z >= self.MinEdge.z) and (z <= self.MaxEdge.z)
local MaxEdge, MinEdge = self.MaxEdge, self.MinEdge
return (x >= MinEdge.x) and (x <= MaxEdge.x) and
(y >= MinEdge.y) and (y <= MaxEdge.y) and
(z >= MinEdge.z) and (z <= MaxEdge.z)
end
function VoxelArea:containsp(p)
return (p.x >= self.MinEdge.x) and (p.x <= self.MaxEdge.x) and
(p.y >= self.MinEdge.y) and (p.y <= self.MaxEdge.y) and
(p.z >= self.MinEdge.z) and (p.z <= self.MaxEdge.z)
local MaxEdge, MinEdge = self.MaxEdge, self.MinEdge
return (p.x >= MinEdge.x) and (p.x <= MaxEdge.x) and
(p.y >= MinEdge.y) and (p.y <= MaxEdge.y) and
(p.z >= MinEdge.z) and (p.z <= MaxEdge.z)
end
function VoxelArea:containsi(i)