本文整理汇总了Python中World.World.newPosition方法的典型用法代码示例。如果您正苦于以下问题：Python World.newPosition方法的具体用法？Python World.newPosition怎么用？Python World.newPosition使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类World.World的用法示例。
在下文中一共展示了World.newPosition方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: valueIteration
# 需要导入模块: from World import World [as 别名]
# 或者: from World.World import newPosition [as 别名]
def valueIteration(defaultReward):
discountedValue = 0.9
from World import World
instance = World()
instance.default_Reward = defaultReward
# print instance.isWalls(3,2)
# old actions ={'right':[0.8,0.2],'left':[1.0],'up':[0.8,0.2],'down':[1.0]}
actions = {
"right": {"right": 0.8, "down": 0.2},
"left": {"left": 1.0},
"up": {"up": 0.8, "left": 0.2},
"down": {"down": 1.0},
}
# initialize the value
valueGrid = [[0 for x in range(instance.world_Column)] for x in range(instance.world_Row)]
previousValueGrid = [[0 for x in range(instance.world_Column)] for x in range(instance.world_Row)]
iterations = 0
stop = False
while not stop:
iterations += 1
previousValueGrid = copyMatrix(valueGrid, instance.world_Row, instance.world_Column)
for row in range(instance.world_Row):
for col in range(instance.world_Column):
# for all states
# for all actions
valueActions = [0, 0, 0, 0]
count = 0
if not instance.isWalls(row, col):
for key, pairs in actions.iteritems():
total = 0.0
for action, value in pairs.iteritems():
if instance.isWithinWorld(action, row, col):
newCoordinates = instance.newPosition(action, row, col)
total += value * valueGrid[newCoordinates[0]][newCoordinates[1]]
valueActions[count] = instance.getRewards(row, col) + (discountedValue * total)
count += 1
valueGrid[row][col] = max(valueActions)
# print valueGrid
stop = convergence(valueGrid, previousValueGrid, instance.world_Row, instance.world_Column)
print valueGrid
print "The number of iterations is " + str(iterations)