On tick when zero

Let's make a game!
   name:On tick when zero
   by:builder17
   created:19/11/2019
   updated:19/11/2019
   version:2

Settings
    building cost increase:115%
    building cost refund:25%
    stylesheet:stuff/bigBlue.css

Layout
      use default

Resources
	*resource1
		name:Test resource
		on tick:yield 5 this


	*resource2
		name:Hidden resource
		desc:Test resource/second is [resource1:ps]
		on tick:yield (resource1:ps) this

Buildings
	*building
		name:Test building
		cost:5 resource1
		on tick:yield 1 resource1