gym-minigrid/gym_minigrid/envs/multiroom.py [37:92]:
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            grid_size=25,
            max_steps=self.maxNumRooms * 20
        )

    def _gen_grid(self, width, height):
        roomList = []

        # Choose a random number of rooms to generate
        numRooms = self._rand_int(self.minNumRooms, self.maxNumRooms+1)

        while len(roomList) < numRooms:
            curRoomList = []

            entryDoorPos = (
                self._rand_int(0, width - 2),
                self._rand_int(0, width - 2)
            )

            # Recursively place the rooms
            self._placeRoom(
                numRooms,
                roomList=curRoomList,
                minSz=4,
                maxSz=self.maxRoomSize,
                entryDoorWall=2,
                entryDoorPos=entryDoorPos
            )

            if len(curRoomList) > len(roomList):
                roomList = curRoomList

        # Store the list of rooms in this environment
        assert len(roomList) > 0
        self.rooms = roomList

        # Create the grid
        self.grid = Grid(width, height)
        wall = Wall()

        prevDoorColor = None

        # For each room
        for idx, room in enumerate(roomList):

            topX, topY = room.top
            sizeX, sizeY = room.size

            # Draw the top and bottom walls
            for i in range(0, sizeX):
                self.grid.set(topX + i, topY, wall)
                self.grid.set(topX + i, topY + sizeY - 1, wall)

            # Draw the left and right walls
            for j in range(0, sizeY):
                self.grid.set(topX, topY + j, wall)
                self.grid.set(topX + sizeX - 1, topY + j, wall)
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gym-minigrid/gym_minigrid/envs/multiroom_noisytv.py [37:92]:
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            grid_size=25,
            max_steps=self.maxNumRooms * 20
        )

    def _gen_grid(self, width, height):
        roomList = []

        # Choose a random number of rooms to generate
        numRooms = self._rand_int(self.minNumRooms, self.maxNumRooms+1)

        while len(roomList) < numRooms:
            curRoomList = []

            entryDoorPos = (
                self._rand_int(0, width - 2),
                self._rand_int(0, width - 2)
            )

            # Recursively place the rooms
            self._placeRoom(
                numRooms,
                roomList=curRoomList,
                minSz=4,
                maxSz=self.maxRoomSize,
                entryDoorWall=2,
                entryDoorPos=entryDoorPos
            )

            if len(curRoomList) > len(roomList):
                roomList = curRoomList

        # Store the list of rooms in this environment
        assert len(roomList) > 0
        self.rooms = roomList

        # Create the grid
        self.grid = Grid(width, height)
        wall = Wall()

        prevDoorColor = None

        # For each room
        for idx, room in enumerate(roomList):

            topX, topY = room.top
            sizeX, sizeY = room.size

            # Draw the top and bottom walls
            for i in range(0, sizeX):
                self.grid.set(topX + i, topY, wall)
                self.grid.set(topX + i, topY + sizeY - 1, wall)

            # Draw the left and right walls
            for j in range(0, sizeY):
                self.grid.set(topX, topY + j, wall)
                self.grid.set(topX + sizeX - 1, topY + j, wall)
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