val cookingHood = machine {
    intVariable("power", 0)
    state("POWER_OFF") {
        transition("PLUS").to("POWER_ON").setVariableTo("power",1).end()
    }
    state("POWER_ON") {
        transition("PLUS").to("MAX_POWER").
            whenn("power").isEqualTo(MAX_POWER).end()
        transition("PLUS").to("POWER_ON").
            whenn("power").isLessThan(MAX_POWER).changeVariableBy("power", 1).end()
        transition("MINUS").to("POWER_OFF").
            whenn("power").isEqualTo(MIN_POWER).end()
        transition("MINUS").to("POWER_ON").
            whenn("power").isGreaterThan(1).changeVariableBy("power", -1).end()
    }
    state("MAX_POWER") {
        transition("MINUS").to("POWER_ON").changeVariableBy("power", -1).end()
    }
}