lua.wetgenes.chipmunk.space.query_shape
array = space:query_shape(shape)
Find the shapes that intersect with the given shape.
Returns an array of hit data, with each item containing the following.
it.shape -- the shape
it.normal_x -- the normal at contact (x)
it.normal_y -- the normal at contact (y)
it.contacts -- array of contact points -> {ax,ay,bx,by,distance,etc...}