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Title: Model the Square (Video) – Real Python

Open Graph Title: Model the Square – Real Python

Description: Model the Square. The purpose of a square is to convey information about a particular location in the maze. Therefore, every square should have known coordinates that can determine its position. The square should also have a border pattern that…

Open Graph Description: Model the Square. The purpose of a square is to convey information about a particular location in the maze. Therefore, every square should have known coordinates that can determine its position. The square should also have a border pattern that…

Opengraph URL: https://realpython.com/lessons/model-python-maze-square/

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Domain: realpython.com

Hey, it has json ld scripts: 
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    "@type": "VideoObject",
    "name": "Model the Square",
    "description": "Model the Square. The purpose of a square is to convey information about a particular location in the maze. Therefore, every square should have known coordinates that can determine its position. The square should also have a border pattern that…",
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00:00https://realpython.com/lessons/model-python-maze-square/#t=0.54
Model the Square.https://realpython.com/lessons/model-python-maze-square/#t=0.54
00:04https://realpython.com/lessons/model-python-maze-square/#t=4.24
The purpose of a square is to convey information about a particular location inhttps://realpython.com/lessons/model-python-maze-square/#t=4.24
the maze.https://realpython.com/lessons/model-python-maze-square/#t=8.34
Therefore,https://realpython.com/lessons/model-python-maze-square/#t=9.178
every square should have known coordinates that can determine its position.https://realpython.com/lessons/model-python-maze-square/#t=10.15
00:14https://realpython.com/lessons/model-python-maze-square/#t=14.54
The square should also have a border pattern that describes the maze structurehttps://realpython.com/lessons/model-python-maze-square/#t=14.54
at that location.https://realpython.com/lessons/model-python-maze-square/#t=17.9
Depending on the purpose of the square,https://realpython.com/lessons/model-python-maze-square/#t=18.955
it may option optionally play a special role—for example,https://realpython.com/lessons/model-python-maze-square/#t=21.52
indicating the maze entrance.https://realpython.com/lessons/model-python-maze-square/#t=24.79
00:27https://realpython.com/lessons/model-python-maze-square/#t=27.29
You’ve already done the hard work by offloading most of these responsibilitieshttps://realpython.com/lessons/model-python-maze-square/#t=27.29
to helper classes.https://realpython.com/lessons/model-python-maze-square/#t=31.01
The only remaining task is to combine them into a final square object.https://realpython.com/lessons/model-python-maze-square/#t=33.02
00:39https://realpython.com/lessons/model-python-maze-square/#t=39.77
Open the square module and enter this code.https://realpython.com/lessons/model-python-maze-square/#t=39.77
00:55https://realpython.com/lessons/model-python-maze-square/#t=55.99
You are using Python’s data class to generate the mundane code for you,https://realpython.com/lessons/model-python-maze-square/#t=55.99
which will correctly initialize instances of this class, amongst a few otherhttps://realpython.com/lessons/model-python-maze-square/#t=59.9
things.https://realpython.com/lessons/model-python-maze-square/#t=64.13
01:05https://realpython.com/lessons/model-python-maze-square/#t=65.72
Enabling the frozen parameter ensures that square objects become immutable afterhttps://realpython.com/lessons/model-python-maze-square/#t=65.72
you create them.https://realpython.com/lessons/model-python-maze-square/#t=69.96
There’s no point in changing the values of the instance variables once they’rehttps://realpython.com/lessons/model-python-maze-square/#t=71.3
set.https://realpython.com/lessons/model-python-maze-square/#t=75.19
01:16https://realpython.com/lessons/model-python-maze-square/#t=76.56
Preferring immutable objects over mutable ones where possible is considered ahttps://realpython.com/lessons/model-python-maze-square/#t=76.56
good programming practice,https://realpython.com/lessons/model-python-maze-square/#t=80.63
which can prevent subtle bugs caused by unexpected changes in data.https://realpython.com/lessons/model-python-maze-square/#t=81.79
01:26https://realpython.com/lessons/model-python-maze-square/#t=86.94
Note that in addition to storing the square’s row and column indices,https://realpython.com/lessons/model-python-maze-square/#t=86.94
you also keep track of its one-dimensional index within a flat sequence ofhttps://realpython.com/lessons/model-python-maze-square/#t=90.25
squares.https://realpython.com/lessons/model-python-maze-square/#t=94.55
01:35https://realpython.com/lessons/model-python-maze-square/#t=95.431
This way,https://realpython.com/lessons/model-python-maze-square/#t=95.431
the search algorithm can uniquely identify the squares.https://realpython.com/lessons/model-python-maze-square/#t=96.47
01:43https://realpython.com/lessons/model-python-maze-square/#t=103.91
While you could theoretically infer the index from the row and column,https://realpython.com/lessons/model-python-maze-square/#t=103.91
you’d also need to know the width and height of the maze,https://realpython.com/lessons/model-python-maze-square/#t=107.47
which are none of the square’s business.https://realpython.com/lessons/model-python-maze-square/#t=109.78
01:52https://realpython.com/lessons/model-python-maze-square/#t=112.3
A little redundancy can sometimes keep data encapsulated.https://realpython.com/lessons/model-python-maze-square/#t=112.3
When creating your Square instance,https://realpython.com/lessons/model-python-maze-square/#t=117.99
you must specify its index, row, column, and border pattern,https://realpython.com/lessons/model-python-maze-square/#t=120.14
but the role is completely optional.https://realpython.com/lessons/model-python-maze-square/#t=124.3
02:06https://realpython.com/lessons/model-python-maze-square/#t=126.406
If you skip the role in the initializer,https://realpython.com/lessons/model-python-maze-square/#t=126.406
then the square will assume Role.NONE by default.https://realpython.com/lessons/model-python-maze-square/#t=129.05
And that’s it!https://realpython.com/lessons/model-python-maze-square/#t=133.7
You successfully modeled the Square data type,https://realpython.com/lessons/model-python-maze-square/#t=134.296
so all the building blocks are now in place to build the maze,https://realpython.com/lessons/model-python-maze-square/#t=136.94
and that’s what you’ll be doing in the next section of the course.https://realpython.com/lessons/model-python-maze-square/#t=140.86
Become a Memberhttps://realpython.com/account/join/
https://realpython.com/lessons/python-maze-border-patterns/
Overviewhttps://realpython.com/courses/python-maze-solver/
https://realpython.com/lessons/build-python-maze/
Mazes in Python: Build and Visualize 02:47 https://realpython.com/videos/python-maze-solver-part-1-overview/
Check Out What You'll Make 02:39 https://realpython.com/videos/python-maze-solver-project/
Lay the Groundwork 04:02 https://realpython.com/videos/python-maze-solver-groundwork/
Scaffold the Project Structure 04:50 https://realpython.com/lessons/python-maze-solver-structure/
Represent the Maze With Objects 06:37 https://realpython.com/lessons/represent-maze-with-objects/
Create Border Patterns 06:32 https://realpython.com/lessons/python-maze-border-patterns/
Model the Square 02:25 https://realpython.com/lessons/model-python-maze-square/
Build the Maze 09:07 https://realpython.com/lessons/build-python-maze/
Visualize the Maze With SVG 04:45 https://realpython.com/lessons/python-maze-svg/
Implement Geometric Primitives 04:48 https://realpython.com/lessons/python-maze-geometric-primitives/
Add More Primitives 03:47 https://realpython.com/lessons/python-maze-more-primitives/
Decompose the Border Into Primitives 04:41 https://realpython.com/lessons/decompose-python-maze-border/
Add More Border Patterns 03:58 https://realpython.com/lessons/python-maze-more-border-patterns/
Build the SVG Renderer 03:49 https://realpython.com/lessons/python-maze-svg-renderer/
Add Features to the Renderer 06:50 https://realpython.com/lessons/python-maze-renderer-features/
Draw the Solution 03:13 https://realpython.com/lessons/draw-python-maze-solution/
Preview the Rendered Maze and Its Solution 04:56 https://realpython.com/lessons/preview-python-maze/
Mazes in Python: Build and Visualize (Recap) 01:14 https://realpython.com/lessons/python-maze-solver-part-1-summary/
Mazes in Python: Store and Solve 01:48 https://realpython.com/videos/python-maze-solver-part-2-overview/
Load the Maze From a Binary File 04:55 https://realpython.com/videos/python-maze-binary-file/
Choose Your Data Alignment 05:09 https://realpython.com/videos/python-maze-data-alignment/
Define the File Header and Body 08:12 https://realpython.com/lessons/python-maze-file-header-and-body/
Serialize the Maze 05:22 https://realpython.com/lessons/serialize-python-maze/
Deserialize the Maze 04:32 https://realpython.com/lessons/deserialize-python-maze/
Make the Maze Self-Contained 04:30 https://realpython.com/lessons/python-self-contained-maze/
Update the Maze Class 03:16 https://realpython.com/lessons/python-maze-class/
Solve the Maze Using a Graph-Based Approach 03:01 https://realpython.com/lessons/solve-python-maze-graph-based/
Transform the Maze Into a Graph 07:06 https://realpython.com/lessons/transform-python-maze-graph/
Find the Shortest Path 05:23 https://realpython.com/lessons/python-maze-shortest-path/
Add Weights to Graph Edges 02:36 https://realpython.com/lessons/python-map-weights-graph-edges/
Introduce Enemies and Rewards 06:04 https://realpython.com/lessons/python-maze-enemies-rewards/
Make a Runnable Script 03:59 https://realpython.com/lessons/python-maze-runnable-script/
Mazes in Python: Store and Solve (Recap) 01:23 https://realpython.com/lessons/python-maze-solver-part-2-summary/
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