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Diffstat (limited to 'builtin/vector.lua')
-rw-r--r--builtin/vector.lua72
1 files changed, 27 insertions, 45 deletions
diff --git a/builtin/vector.lua b/builtin/vector.lua
index 839f139ca..7faa2c17d 100644
--- a/builtin/vector.lua
+++ b/builtin/vector.lua
@@ -2,22 +2,12 @@
vector = {}
function vector.new(a, b, c)
- v = {x=0, y=0, z=0}
if type(a) == "table" then
- v = {x=a.x, y=a.y, z=a.z}
+ return {x=a.x, y=a.y, z=a.z}
elseif a and b and c then
- v = {x=a, y=b, z=c}
+ return {x=a, y=b, z=c}
end
- setmetatable(v, {
- __add = vector.add,
- __sub = vector.subtract,
- __mul = vector.multiply,
- __div = vector.divide,
- __umn = function(v) return vector.multiply(v, -1) end,
- __len = vector.length,
- __eq = vector.equals,
- })
- return v
+ return {x=0, y=0, z=0}
end
function vector.equals(a, b)
@@ -85,57 +75,49 @@ end
function vector.add(a, b)
if type(b) == "table" then
- return vector.new(
- a.x + b.x,
- a.y + b.y,
- a.z + b.z)
+ return {x = a.x + b.x,
+ y = a.y + b.y,
+ z = a.z + b.z}
else
- return vector.new(
- a.x + b,
- a.y + b,
- a.z + b)
+ return {x = a.x + b,
+ y = a.y + b,
+ z = a.z + b}
end
end
function vector.subtract(a, b)
if type(b) == "table" then
- return vector.new(
- a.x - b.x,
- a.y - b.y,
- a.z - b.z)
+ return {x = a.x - b.x,
+ y = a.y - b.y,
+ z = a.z - b.z}
else
- return vector.new(
- a.x - b,
- a.y - b,
- a.z - b)
+ return {x = a.x - b,
+ y = a.y - b,
+ z = a.z - b}
end
end
function vector.multiply(a, b)
if type(b) == "table" then
- return vector.new(
- a.x * b.x,
- a.y * b.y,
- a.z * b.z)
+ return {x = a.x * b.x,
+ y = a.y * b.y,
+ z = a.z * b.z}
else
- return vector.new(
- a.x * b,
- a.y * b,
- a.z * b)
+ return {x = a.x * b,
+ y = a.y * b,
+ z = a.z * b}
end
end
function vector.divide(a, b)
if type(b) == "table" then
- return vector.new(
- a.x / b.x,
- a.y / b.y,
- a.z / b.z)
+ return {x = a.x / b.x,
+ y = a.y / b.y,
+ z = a.z / b.z}
else
- return vector.new(
- a.x / b,
- a.y / b,
- a.z / b)
+ return {x = a.x / b,
+ y = a.y / b,
+ z = a.z / b}
end
end