FSM.lua

-- trying to make an ergonomic state machine
-- maybe im just making madness

local FSM = {}

function FSM.new(states,startState)
    local self = setmetatable({},{__index=FSM})

    self.states = states
    self:transition(startState)

    return self
end

function FSM:transition(newState, ...)
    if not newState then return end

    local targetState = self.states[newState]
    self.currentState = targetState

    return self:transition(targetState.enter(...))
end

function FSM:step(...)
    if not self.currentState.step then return end
    if not typeof(self.currentState.step) == "function" then return end

    self:transition(self.currentState.step(...))
end

return FSM