Example #1
0
def greedy_maze(ini_maze,steps,start,end,stepdict,savepath):
    label=1
    labeldict={888:(4,5)}
    costdict={888:14}
    fatherdict={}
    while costdict!={}:
        costsort=sorted(costdict.items(),key=lambda d:d[1])
        expand=costsort[0]
        ex=labeldict[expand[0]]
        costdict.pop(expand[0])
        #print(maze[ex])
        for step in range(4):
            new=(ex[0]+stepdict[step][0],ex[1]+stepdict[step][1])
            #print(new)
            if 0<=new[0]<=7 and 0<=new[1]<=10:
                if ini_maze[new[0]][new[1]]==0:
                    utils.rep_val(ini_maze,new,label)
                    labeldict[label]=new
                    costdict[label]=compute_h_cost(new,end)
                    #print(costdict)
                    fatherdict[label]=maze[ex]
                    savepng=os.path.join(savepath,'{}'.format(label))
                    if new!=end:
                        vis.draw_maze(ini_maze,savepng,end,new[1],new[0],str(label))
                    label+=1
                    #print(ucs_maze)
                    if new==end:
                        break
        else:
            continue
        break
    return ini_maze,fatherdict
Example #2
0
def dfs_maze(ini_maze, steps, start, end, savepath):
    expanding = [start]  #list waiting for expanding
    label = 1
    fatherdict = {}
    while expanding != []:
        ex = expanding.pop(-1)
        #print(maze[ex])
        for step in steps:
            new = (ex[0] + step[0], ex[1] + step[1])
            #print(new)
            if 0 <= new[0] <= 7 and 0 <= new[1] <= 10:
                if ini_maze[new[0]][new[1]] == 0:
                    utils.rep_val(ini_maze, new, label)
                    expanding.append(new)
                    fatherdict[label] = maze[ex]
                    savepng = os.path.join(savepath, '{}'.format(label))
                    if new != end:
                        vis.draw_maze(ini_maze, savepng, end, new[1], new[0],
                                      str(label))
                    label += 1
                    #print(dfs_maze)
                    if new == end:
                        break
        else:
            continue
        break
    return ini_maze, fatherdict
Example #3
0
    return ini_maze, fatherdict


mazeshape = (8, 11)
start = (4, 5)
end = (0, 10)
walls = [(4, 3), (4, 4), (3, 4), (2, 4), (2, 5), (2, 6), (2, 7), (3, 7),
         (4, 7), (5, 7), (5, 6)]

#windy condition steps:
steps = [(0, -1), (-1, 0), (0, 1), (1, 0)]
stepdict = {0: (0, -1), 1: (-1, 0), 2: (0, 1), 3: (1, 0)}
stepcost = {0: 2, 1: 1, 2: 2, 3: 3}

#initial maze
maze = utils.init_maze(mazeshape, start, walls)

#save images and gif under:
dirpath = "/Users/stephaniexia/Documents/UM/S2/CIS 579/Project1/Astar_image"
vis.draw_maze(maze, os.path.join(dirpath, "0.png"), end)

Astar_result, fatherdict = Astar_maze(maze, steps, start, end, stepdict,
                                      stepcost, dirpath)

path = utils.listpath(fatherdict, start, end, Astar_result)

utils.show_result(Astar_result)
utils.show_path(Astar_result, path)

vis.draw_path(Astar_result, dirpath, end, path)
vis.generate_gif(dirpath)