How to pass a list of number dynamically?

thanhquan1512

Hi guys,

In this function:

b2.PolygonShape:set(vertices)

vertices: A list of numbers that contains the x, y coordinates of the vertices sequentially

Now I want to build a polygon dynamically, that mean I must pass it coordinates to this function but I don't know how to build and pass a list of numbers.

I tried with a string:

b2.PolygonShape:set('1,2,3,4,5,6')

or an array:

b2.PolygonShape:set({1,2,3,4,5,6})

but got these errors:
bad argument #1 to 'set' (number expected, got string)
bad argument #1 to 'set' (number expected, got table)

ar2rsawseen

Hello @thanhquan1512
it should be like this:

local t = {1,2,3,4,5,6} b2.PolygonShape:set(unpack(t))