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Merge pull request #70 from billmakes/prev_state_name
state_machine: include prev_state_name
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commit
768afaf02d
@ -33,6 +33,7 @@ local state_machine = class({
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function state_machine:new(states, start_in_state)
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self.states = states or {}
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self.current_state_name = ""
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self.prev_state_name = ""
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self.reset_state_name = start_in_state or ""
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self:reset()
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end
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@ -87,7 +88,7 @@ end
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--add a state
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function state_machine:add_state(name, state)
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if self:has_state(name) then
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error("error: added duplicate state "..name)
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error("error: added duplicate state " .. name)
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else
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self.states[name] = state
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if self:in_state(name) then
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@ -101,7 +102,7 @@ end
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--remove a state
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function state_machine:remove_state(name)
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if not self:has_state(name) then
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error("error: removed missing state "..name)
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error("error: removed missing state " .. name)
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else
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if self:in_state(name) then
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self:_call("exit")
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@ -151,6 +152,7 @@ end
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function state_machine:set_state(name, reset)
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if self.current_state_name ~= name or reset then
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self:_call("exit")
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self.prev_state_name = self.current_state_name
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self.current_state_name = name
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self:_call_and_transition("enter", self)
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end
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