a* update, showing path to target
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8
.idea/.gitignore
vendored
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8
.idea/.gitignore
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# Default ignored files
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/shelf/
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/workspace.xml
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# Editor-based HTTP Client requests
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/httpRequests/
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# Datasource local storage ignored files
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/dataSources/
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/dataSources.local.xml
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8
.idea/SI-projekt-smieciarka2.iml
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8
.idea/SI-projekt-smieciarka2.iml
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<?xml version="1.0" encoding="UTF-8"?>
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<module type="PYTHON_MODULE" version="4">
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<component name="NewModuleRootManager">
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<content url="file://$MODULE_DIR$" />
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<orderEntry type="inheritedJdk" />
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<orderEntry type="sourceFolder" forTests="false" />
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</component>
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</module>
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6
.idea/inspectionProfiles/profiles_settings.xml
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.idea/inspectionProfiles/profiles_settings.xml
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<component name="InspectionProjectProfileManager">
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<settings>
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<option name="USE_PROJECT_PROFILE" value="false" />
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<version value="1.0" />
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</settings>
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</component>
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4
.idea/misc.xml
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4
.idea/misc.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="ProjectRootManager" version="2" project-jdk-name="Python 3.9" project-jdk-type="Python SDK" />
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</project>
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8
.idea/modules.xml
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8
.idea/modules.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="ProjectModuleManager">
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<modules>
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<module fileurl="file://$PROJECT_DIR$/.idea/SI-projekt-smieciarka2.iml" filepath="$PROJECT_DIR$/.idea/SI-projekt-smieciarka2.iml" />
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</modules>
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</component>
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</project>
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6
.idea/vcs.xml
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6
.idea/vcs.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<project version="4">
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<component name="VcsDirectoryMappings">
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<mapping directory="$PROJECT_DIR$" vcs="Git" />
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</component>
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</project>
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BIN
junkyard.png
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BIN
junkyard.png
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51
src/astar.py
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src/astar.py
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from queue import PriorityQueue
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def heuristic(xy1, xy2):
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return abs(xy1[0] - xy2[0]) + abs(xy1[1] - xy2[1])
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def neighbours(point):
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x, y = point
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list=((x+1,y), (x,y+1), (x,y-1), (x-1,y))
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return list
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#determining the cost of a specific field in the grid
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def checkCost(grid, xy):
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x, y = xy
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cost = grid[x][y]
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return cost
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def aStar(grid, start, goal):
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openlist = PriorityQueue()
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openlist.put(start, 0)
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fScore = {}
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origin = {start: None}
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fScore[start] = 0
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closedlist=[]
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while openlist!= {} :
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current = openlist.get()
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if current == goal:
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path = []
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#following from the succesors to the root our starting point
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while current != start:
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path.append(current)
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current = origin[current]
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path.reverse()
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break
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# successor function
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for succ in neighbours(current):
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#checking if didn't go out of the maze
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if(succ[0] < 0 or succ[1] < 0 or succ[0] > 14 or succ[1] > 14):
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continue
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gScore = fScore[current[0],current[1]] + checkCost(grid, current)
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if succ not in closedlist or gScore < fScore[succ[0],succ[1]]:
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closedlist.append(succ)
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origin[succ[0],succ[1]] = current
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fScore[succ[0],succ[1]] = gScore
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priority = gScore + heuristic(goal, succ)
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openlist.put(succ, priority)
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return path
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