GridEnvironment4.py

#constructing grid and fetching observations
#reading the data from the grid

def read_grid_map(self, insert_grid_map):
            with open(insert_grid_map, 'r') as f:
                
                grid_map = f.readlines()
                grids = np.array(list(map(lambda x: 
                        list(map(lambda y: int(y), 
                    x.split(''))), grid_map)))
                
                return grids
            
#fetching observations from grid map 

def grid_map_to_observation(self, grid_map, obs_shape=None):
            
            if obs_shape is None:
                
                obs_shape = self.obs_shape
                
            observation = np.zeros(obs_shape, dtype=np.float)
            gs0 = int(observation.shape[0]/ grid_map.shape[0])
            gs1 = int(observation.shape[1]/ grid_map.shape[1])
            
            for i in range(grid_map.shape[0]):
                for j in range(grid_map.shape[1]):
                    
                    observation[i*gs0:(i+1)*gs1, j*gs0:(j+1)*gs1]
                    
            return observation