Wall Collision Logic | Pac-Man in Python – Ep. 5 (Beginner Tutorial Series)

💥 Wall Collision Logic | Pac-Man in Python – Ep. 5 (Beginner Tutorial Series)

In this episode, we give Pac-Man a sense of awareness — by adding wall collision detection to the game using Python & the Turtle Graphics module.

We’ll create a reliable system that checks whether Pac-Man is about to hit a wall, and stop him just in time to keep him inside the maze. You’ll also learn how to align his position to the grid using collision correction logic making turns feel clean and responsive — even when the player moves early or late.

By the end of this episode, Pac-Man will move naturally through the maze, bounce off walls, and snap into place when turning — just like in the original arcade game. You’ll be ready to implement pellet collection and user interface in Episode 6.

You’ll learn how to:
• 🔎 Detect collisions by checking Pac-Man’s position and direction
• 🧠 Compare his edges to wall tile locations
• ➕ Add correction logic for smoother turning and movement control
• 🧱 Build grid-aware collision detection in Python Turtle

▶️ Watch the full Pac-Man in Python playlist:
👉    • Pac-Man in Python & Turtle Graphics (Begin...  

📂 Get the source code:
👉 https://github.com/TheWannabeCoder92/...

⏰ Chapters:
00:00 Welcome to Episode Five
00:30 Episode Four Recap
00:58 Actors File
01:38 Get Heading Method
03:35 Understand Collision Logic
05:36 Check Wall Collision Method
08:26 Right Direction Collision Logic
11:19 Left Direction Collision Logic
12:59 Up Direction Collision Logic
14:19 Down Direction Collision Logic
15:06 Main File
16:55 Test Code & Collision Corrections
18:57 Adding Corrections Conditions
23:18 Final Code Test
23:50 Recap & What’s Coming in Episode 6

💬 Questions? Drop them in the comments — I reply to every one.
👍 Like the video? Hit Like & Subscribe to follow the full Beginner Tutorial Series.
🎙️ Voiceover generated using ElevenLabs (Ryan Kurk)

#python #turtlegraphics #collisiondetection #gamedev #coding