def computeLambda(state, maximumTime=1.0):
activeAgents = state.getActiveAgents()
agentNames = getUniqueNames(activeAgents, prefix="Agent ")
classNames = getUniqueNames(state.getChoiceClasses(), prefix="Class ")
choiceNames = getUniqueNames(state.getChoices(), prefix="")
choiceVariables = LpVariable.dicts("p", choiceNames.values(), lowBound=0)
lambdaVariable = LpVariable("l", lowBound=0.0, upBound=maximumTime)
def createConstraints(problem, variable):
problem += lpSum(choiceVariables) <= 1, "Distribution"
for choiceClass, height in state.getCurrentClassHeights().items():
problem += createLpSum(choiceClass, choiceNames, choiceVariables) >= \
height, classNames[choiceClass] + " height"
for agent in state.getActiveAgents():
problem += createLpSum(state.getCurrentAgentChoiceClass(agent),
choiceNames, choiceVariables) >= \
state.getAgentHeight(agent) + variable * state.getAgentSpeed(agent), \
agentNames[agent] + " push"
problem = LpProblem("Lambda", LpMaximize)
createConstraints(problem, lambdaVariable)
problem.setObjective(lambdaVariable)
checkPulpStatus(problem.solve(state.getSettings().getSolver()))
lambdaOpt = lambdaVariable.value()
bouncingAgents = []
stringAgents = [] #TODO just a workaround; find better solution
for currentAgent in activeAgents:
print "Current agent: " + agentNames[
currentAgent] # name is off by one
problem = LpProblem(agentNames[currentAgent], LpMaximize)
createConstraints(problem, lambdaOpt)
(choiceClass, height, speed) = state.getAgentData(currentAgent)
# print "Choice Class: " + repr(choiceClass) + ",
print "height: " + repr(height) + " , speed: " + repr(speed)
problem.setObjective(
createLpSum(choiceClass, choiceNames, choiceVariables) -
lambdaOpt * speed - height)
checkPulpStatus(problem.solve(state.getSettings().getSolver()))
value = problem.objective.value()
# print "value: " + repr(value) + "\n"
if not state.getSettings().isNonnegative(value):
raise ValueError(
str(value) + " negative while determining bounce of " +
repr(currentAgent) + " from " + repr(choiceClass) + "@" +
str(height) + "/" + str(speed))
if state.getSettings().isClose(value, 0):
bouncingAgents.append(currentAgent)
stringAgents.append(int(currentAgent.getName()))
print "climbing time: " + repr(lambdaOpt) + ", bouncingAgents: " + str(
stringAgents) + "\n"
# print map(Agent.getName(), bouncingAgents)
return (lambdaOpt, bouncingAgents)
def computeLambda(state, maximumTime=1.0):
activeAgents = state.getActiveAgents()
agentNames = getUniqueNames(activeAgents, prefix="Agent ")
classNames = getUniqueNames(state.getChoiceClasses(), prefix="Class ")
choiceNames = getUniqueNames(state.getChoices(), prefix="")
choiceVariables = LpVariable.dicts("p", choiceNames.values(), lowBound=0)
lambdaVariable = LpVariable("l", lowBound=0.0, upBound=maximumTime)
def createConstraints(problem, variable):
problem += lpSum(choiceVariables) <= 1, "Distribution"
for choiceClass, height in state.getCurrentClassHeights().items():
problem += createLpSum(choiceClass, choiceNames, choiceVariables) >= \
height, classNames[choiceClass] + " height"
for agent in state.getActiveAgents():
problem += createLpSum(state.getCurrentAgentChoiceClass(agent),
choiceNames, choiceVariables) >= \
state.getAgentHeight(agent) + variable * state.getAgentSpeed(agent), \
agentNames[agent] + " push"
problem = LpProblem("Lambda", LpMaximize)
createConstraints(problem, lambdaVariable)
problem.setObjective(lambdaVariable)
checkPulpStatus(problem.solve(state.getSettings().getSolver()))
lambdaOpt = lambdaVariable.value()
bouncingAgents = []
stringAgents = [] #TODO just a workaround; find better solution
for currentAgent in activeAgents:
print "Current agent: " + agentNames[currentAgent] # name is off by one
problem = LpProblem(agentNames[currentAgent], LpMaximize)
createConstraints(problem, lambdaOpt)
(choiceClass, height, speed) = state.getAgentData(currentAgent)
# print "Choice Class: " + repr(choiceClass) + ",
print "height: " + repr(height) + " , speed: " + repr(speed)
problem.setObjective(createLpSum(choiceClass, choiceNames, choiceVariables)
- lambdaOpt * speed - height)
checkPulpStatus(problem.solve(state.getSettings().getSolver()))
value = problem.objective.value()
# print "value: " + repr(value) + "\n"
if not state.getSettings().isNonnegative(value):
raise ValueError(str(value) + " negative while determining bounce of " +
repr(currentAgent) + " from " + repr(choiceClass) +
"@" + str(height) + "/" + str(speed))
if state.getSettings().isClose(value, 0):
bouncingAgents.append(currentAgent)
stringAgents.append(int(currentAgent.getName()))
print "climbing time: " + repr(lambdaOpt) + ", bouncingAgents: " + str(stringAgents) + "\n"
# print map(Agent.getName(), bouncingAgents)
return (lambdaOpt, bouncingAgents)
def computeLambda(state, maximumTime=1.0):
'''
@type state: SSRState
@type maximumTime: float
'''
towerNames = getUniqueNames(state.getTowers(), prefix="T")
choiceNames = getUniqueNames(state.getChoices(), prefix="")
choiceVariables = LpVariable.dicts("p", choiceNames.values(), lowBound=0.0)
lambdaVariable = LpVariable("l", lowBound=0.0, upBound=maximumTime)
def createConstraints(problem, variable):
problem += lpSum(choiceVariables) <= 1, "Distribution"
for tower, towerName in towerNames.items():
problem += createLpSum(tower.getChoiceClass(), choiceNames, choiceVariables) >= \
tower.getHeight() + variable * \
tower.getSpeed(), towerName
problem = LpProblem("Lambda", LpMaximize)
createConstraints(problem, lambdaVariable)
problem.setObjective(lambdaVariable)
checkPulpStatus(problem.solve(state.getSettings().getSolver()))
lambdaOpt = lambdaVariable.value()
freezingTowers = []
for currentTower, towerName in towerNames.items():
if currentTower.isFrozen():
continue
problem = LpProblem(towerName, LpMaximize)
createConstraints(problem, lambdaOpt)
problem.setObjective(
createLpSum(currentTower.getChoiceClass(), choiceNames,
choiceVariables) -
lambdaOpt * currentTower.getSpeed() - currentTower.getHeight())
checkPulpStatus(problem.solve(state.getSettings().getSolver()))
value = problem.objective.value()
if not state.getSettings().isNonnegative(value):
raise ValueError(
str(value) + " negative while determining frozen state of " +
repr(currentTower))
if state.getSettings().isClose(problem.objective.value(), 0):
freezingTowers.append(currentTower)
return (lambdaOpt, frozenset(freezingTowers))
def computeLambda(state, maximumTime=1.0):
'''
@type state: SSRState
@type maximumTime: float
'''
towerNames = getUniqueNames(state.getTowers(), prefix="T")
choiceNames = getUniqueNames(state.getChoices(), prefix="")
choiceVariables = LpVariable.dicts("p", choiceNames.values(), lowBound=0.0)
lambdaVariable = LpVariable("l", lowBound=0.0, upBound=maximumTime)
def createConstraints(problem, variable):
problem += lpSum(choiceVariables) <= 1, "Distribution"
for tower, towerName in towerNames.items():
problem += createLpSum(tower.getChoiceClass(), choiceNames, choiceVariables) >= \
tower.getHeight() + variable * \
tower.getSpeed(), towerName
problem = LpProblem("Lambda", LpMaximize)
createConstraints(problem, lambdaVariable)
problem.setObjective(lambdaVariable)
checkPulpStatus(problem.solve(state.getSettings().getSolver()))
lambdaOpt = lambdaVariable.value()
freezingTowers = []
for currentTower, towerName in towerNames.items():
if currentTower.isFrozen():
continue
problem = LpProblem(towerName, LpMaximize)
createConstraints(problem, lambdaOpt)
problem.setObjective(createLpSum(currentTower.getChoiceClass(), choiceNames, choiceVariables)
- lambdaOpt * currentTower.getSpeed() - currentTower.getHeight())
checkPulpStatus(problem.solve(state.getSettings().getSolver()))
value = problem.objective.value()
if not state.getSettings().isNonnegative(value):
raise ValueError(str(value) + " negative while determining frozen state of " +
repr(currentTower))
if state.getSettings().isClose(problem.objective.value(), 0):
freezingTowers.append(currentTower)
return (lambdaOpt, frozenset(freezingTowers))