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mindstate: fixed error when gotoState(nil)

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kikito 2010-02-06 19:50:17 +00:00
parent 4ffe20574f
commit 46820474a8
1 changed files with 6 additions and 3 deletions
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9
MindState.lua
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@ -42,11 +42,14 @@ end
function StatefulObject:gotoState(stateName)
assert(self.states~=nil, "Attribute 'states' not detected. check that you called instance:gotoState and not instance.gotoState, and that you invoked super(self) in the constructor.")
local nextState = self.states[stateName]
assert(type(stateName)=='string' and nextState~=nil, "State '" .. stateName .. "' not found")
local nextState
if(stateName~=nil) then
nextState = self.states[stateName]
assert(nextState~=nil, "State '" .. stateName .. "' not found")
end
local prevState = self.currentState
if(prevState~=nil and type(prevState.exitState) == "function") then
if(prevState~=nil and type(prevState.exitState) == "function") then
prevState.exitState(self)
end