GMod Real Matrix Stack (if VMatrix:Copy() is implemented)

example.lua

-- Usage: Apply desired transformations onto FakeMatrixStack.m then use FakeMatrixStack:push() to push those transformations
-- onto the stack. FakeMatrixStack:pop() undoes the push and reset FakeMatrixStack.m to the matrix

-- Example:
FakeMatrixStack.m:Translate(Vector(100,0,0))
FakeMatrixStack:push()

FakeMatrixStack.m:Rotate(Angle(90,90,0)) -- Matrix is conserved and applied on top of the previous
FakeMatrixStack:push()

drawSomething()

FakeMatrixStack:pop()
FakeMatrixStack:pop()

FakeMatrixStack.lua

local FakeMatrixStack = {}
FakeMatrixStack.m = Matrix()

function FakeMatrixStack:push()
	local m = self.m
	cam.PushModelMatrix(m)
	self[#self+1] = m:Copy()
end

function FakeMatrixStack:pop()
	cam.PopModelMatrix()
	self.m = self[#self]
	self[#self] = nil
end

thank you omg