Organize builtin into subdirectories

1 files changed, 0 insertions, 146 deletions

diff --git a/builtin/vector.lua b/builtin/vector.lua
deleted file mode 100644
index 77944b612..000000000
--- a/builtin/vector.lua
+++ /dev/null
@@ -1,146 +0,0 @@
-
-vector = {}
-
-local function assert_vector(v)
-	assert(type(v) == "table" and v.x and v.y and v.z, "Invalid vector")
-end
-
-function vector.new(a, b, c)
-	if type(a) == "table" then
-		assert(a.x and a.y and a.z, "Invalid vector passed to vector.new()")
-		return {x=a.x, y=a.y, z=a.z}
-	elseif a then
-		assert(b and c, "Invalid arguments for vector.new()")
-		return {x=a, y=b, z=c}
-	end
-	return {x=0, y=0, z=0}
-end
-
-function vector.equals(a, b)
-	assert_vector(a)
-	assert_vector(b)
-	return a.x == b.x and
-	       a.y == b.y and
-	       a.z == b.z
-end
-
-function vector.length(v)
-	assert_vector(v)
-	return math.hypot(v.x, math.hypot(v.y, v.z))
-end
-
-function vector.normalize(v)
-	assert_vector(v)
-	local len = vector.length(v)
-	if len == 0 then
-		return {x=0, y=0, z=0}
-	else
-		return vector.divide(v, len)
-	end
-end
-
-function vector.round(v)
-	assert_vector(v)
-	return {
-		x = math.floor(v.x + 0.5),
-		y = math.floor(v.y + 0.5),
-		z = math.floor(v.z + 0.5)
-	}
-end
-
-function vector.distance(a, b)
-	assert_vector(a)
-	assert_vector(b)
-	local x = a.x - b.x
-	local y = a.y - b.y
-	local z = a.z - b.z
-	return math.hypot(x, math.hypot(y, z))
-end
-
-function vector.direction(pos1, pos2)
-	assert_vector(pos1)
-	assert_vector(pos2)
-	local x_raw = pos2.x - pos1.x
-	local y_raw = pos2.y - pos1.y
-	local z_raw = pos2.z - pos1.z
-	local x_abs = math.abs(x_raw)
-	local y_abs = math.abs(y_raw)
-	local z_abs = math.abs(z_raw)
-	if x_abs >= y_abs and
-	   x_abs >= z_abs then
-		y_raw = y_raw * (1 / x_abs)
-		z_raw = z_raw * (1 / x_abs)
-		x_raw = x_raw / x_abs
-	end
-	if y_abs >= x_abs and
-	   y_abs >= z_abs then
-		x_raw = x_raw * (1 / y_abs)
-		z_raw = z_raw * (1 / y_abs)
-		y_raw = y_raw / y_abs
-	end
-	if z_abs >= y_abs and
-	   z_abs >= x_abs then
-		x_raw = x_raw * (1 / z_abs)
-		y_raw = y_raw * (1 / z_abs)
-		z_raw = z_raw / z_abs
-	end
-	return {x=x_raw, y=y_raw, z=z_raw}
-end
-
-
-function vector.add(a, b)
-	assert_vector(a)
-	if type(b) == "table" then
-	    assert_vector(b)
-		return {x = a.x + b.x,
-			y = a.y + b.y,
-			z = a.z + b.z}
-	else
-		return {x = a.x + b,
-			y = a.y + b,
-			z = a.z + b}
-	end
-end
-
-function vector.subtract(a, b)
-	assert_vector(a)
-	if type(b) == "table" then
-	    assert_vector(b)
-		return {x = a.x - b.x,
-			y = a.y - b.y,
-			z = a.z - b.z}
-	else
-		return {x = a.x - b,
-			y = a.y - b,
-			z = a.z - b}
-	end
-end
-
-function vector.multiply(a, b)
-	assert_vector(a)
-	if type(b) == "table" then
-	    assert_vector(b)
-		return {x = a.x * b.x,
-			y = a.y * b.y,
-			z = a.z * b.z}
-	else
-		return {x = a.x * b,
-			y = a.y * b,
-			z = a.z * b}
-	end
-end
-
-function vector.divide(a, b)
-	assert_vector(a)
-	if type(b) == "table" then
-        assert_vector(b)
-		return {x = a.x / b.x,
-			y = a.y / b.y,
-			z = a.z / b.z}
-	else
-		return {x = a.x / b,
-			y = a.y / b,
-			z = a.z / b}
-	end
-end
-