s452684/Projekt_AI-Automatyczny_saper
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a* impl

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barmal4 2021-04-27 22:01:31 +02:00
parent 39717d8860
commit 9b71d67b33
1 changed files with 11 additions and 4 deletions
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15
Engine/PathFinder.py
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@ -1,4 +1,4 @@
from Constants import ROWS, COLS from Constants import ROWS, COLS, MOVE
from Engine.BfsPathFinder import BfsPathFinder from Engine.BfsPathFinder import BfsPathFinder
from Engine.Node import Node from Engine.Node import Node
from Engine.Point import Point from Engine.Point import Point
@ -30,18 +30,19 @@ class PathFinder(BfsPathFinder):
return self.constructActions(current, startState) return self.constructActions(current, startState)
self.openList.remove(current) self.openList.remove(current)
for next in self.getNeighbour(current): for next in self.getNeighbour(current):
tentativeGScore = self.gScore.get(current) + current.state.getPoint().distance(next.state.getPoint()) tentativeGScore = self.gScore.get(current) + self.weight(next)
if tentativeGScore < self.gScore.get(next, 10000): if tentativeGScore < self.gScore.get(next, 10000):
self.cameFrom[next] = current self.cameFrom[next] = current
next.parent = current next.parent = current
self.gScore[next] = tentativeGScore self.gScore[next] = tentativeGScore
self.fScore[next] = tentativeGScore + next.state.getPoint().distance(startState.getPoint()) self.fScore[next] = tentativeGScore + self.heuristic(startState, next)
if next not in self.openList: if next not in self.openList:
self.openList.append(next) self.openList.append(next)
return [] return []
def heuristic(self,startState,next):
return next.state.getPoint().distance(startState.getPoint())
def minKey(self, fscore, openlist): def minKey(self, fscore, openlist):
minkey = Node minkey = Node
@ -53,6 +54,12 @@ class PathFinder(BfsPathFinder):
minkey = node minkey = node
return minkey return minkey
def weight(self, next):
if next.state.getPoint() in self.board.moodMap and next.action == MOVE:
return 5
return 1