Pygame simple collision detection We’ll start with something simple and work our way up from there. Issues with sprite groups or layers. How it Works Rect Object This is a tutorial on the Collision detection between sprite(s) in Pygame. That said, my question is a general one about collision resolution strategies. The Sprite class is intended to be used as a base class for the For collision detection between a rect and a line the clipline () method can be used. We covered the syntax, example, explanation, use, and important points of collision detection algorithms and their implementation in games and simulations. init Nov 1, 2014 · I'm completely new to pygame and I'm struggling to implement collision detection between 'laserblast' and 'tarantula' in my game. I've seen many tutorials for simple rectangle or circle-based collision detection with pygame. It is based on a 'popular' web banner. We can easily add collisions in Pygame shapes using the colliderect ( ). mask. colliderect for adding collision in a shape using Pygame in Python. This game features basic gameplay mechanics including paddle movement, ball physics, and collision detection. Collision Tolerance Adjust the collision tolerance if necessary. It covers essential programming concepts in Pygame, such as handling user input, collision detection, and rendering graphics, providing a solid foundation for beginners in game development. 5D raycasting engine built with Python and Pygame, inspired by the early days of 3D gaming (like Wolfenstein 3D). Pygame time-based physics using delta time (dt) for frame rate independence. I am purposely not using the Sprite class and some of the built in collision functions provided by P Feb 28, 2025 · Scalability: How can I organize collision detection so it's easy to expand without rewriting too much code? I’ve considered using a Quadtree to improve performance, but I’m not sure if it's the best solution for a Pygame-based game. You'll learn how to draw items on your screen, implement collision detection, handle user input, and much more! Mar 27, 2025 · Learn to add player movement, sprite rendering, collision detection, and boundaries in your game loop with this beginner-friendly Pygame guide! Mar 12, 2025 · Pygame's Rect objects provide rectangular areas for position tracking and collision detection. Mar 1, 2020 · I have a couple of platformer-like games in javascript, and this is how I implemented collision: 1. Testing For Collision Now that we have the code to About This is a simple Pong game implemented in Python using Pygame, featuring player and AI-controlled paddles, basic collision detection, and score tracking. Learn how to implement smooth continuous movement in your Pygame games. Pixel-Perfect Collision Detectionsprite. Apr 15, 2015 · In PyGame, collision detection is done using pygame. Great for learning Pygame fundamentals! Simplified Collision Checkcollide_rect () treats each sprite as a simple rectangle. Learn how to create a simple game using Pygame in Python with this step-by-step guide. How to Detect Collision in Pygame Pygame is a set of Python modules designed for writing video games. This means it can accurately detect collisions even when sprites overlap in complex ways, such as irregular shapes or transparent areas. It is a technique widely used in video game development to ascertain when objects come into contact. Jun 29, 2025 · A simple 2. Collision detection in pygame is the programming strategy of detecting when two or more objects collide, or meet, in the game environment. Jun 16, 2025 · Block-Breaker-Game A simple 2D Block Breaker arcade game built using Python's Pygame library. colliderect() you first need some rects. Example initialization: May 27, 2025 · Incorrectly implementing collision detection algorithms (e. Rect. Created using pygame. The issue I am encountering is due to this can_jump variable. It goes over creating hitboxes with pygame and detetcing if character have collided with objects. The 2nd circle is defined by (x2, y2) and r2: PixelPerfect A simple pure python implementation of an pixel perfect collision detection algorithm. I've been trying for a long time and none of the ways works, in my last attempt the code was like this: (Sorr In this step-by-step tutorial, you'll learn how to use Pygame. To get the rect for the circle you can use a line similar to: ballRect = pygame. I'll go over three different collision types which are rectangle collisions using collider A simple pure python implementation of an pixel perfect collision detection algorithm. In this section we're going to cover Sprite Grouping, Collision Detection, User events and some In this video, I show you how to do Pygame Collision Detection! This pygame collision detection tutorial teaches you how to do pygame collisions, including a pygame collision example. In the following the 1 circle is defined by the center point (x1, y1) and the radius r1. Mar 11, 2025 · This tutorial discusses and introduces the different methods we can use for collision testing or detecting in Pygame. Oct 29, 2025 · Explore fundamental PyGame collision detection techniques using pygame. Collision Detection This method checks for collisions between a single rectangle (Rect object) and a list of other rectangles. The best way I've found to check circle collision detection is to calculate the distance between the center points of two circles. Troubleshooting Use debugging tools to visualize hitboxes or collision areas. I've read various docs on surfaces and sprites on pygame. Pygame provides built-in functions and classes for handling rectangular collisions with ease. Related Stack Overflow questions: How do I detect collision in pygame? How do you program collision in classes? How to detect collisions between two rectangular objects or images in pygame Is there a class in pygame to represent a non-AABB polygon? In PyGame, basic collision detection can be done using pygame. May 27, 2025 · What it Does Enhanced Collision It goes beyond simple rectangular collisions. Okay the game i'm creating is a top down Basic Collision Detection Techniques in Pygame Pygame offers several ways to detect collisions, ranging from simple to more complex methods. Why is Pygame Collision Significant? Pygame collision is a concept that brings our games to life. It’s a bit more complicated than calling the input () function, as we did for our text programs. Learn how to create a simple game with Pygame and Python in this beginner-friendly tutorial. Collision detection in Pygame is typically performed by checking the positions and dimensions of objects against one another. By using collision detection, we can create more immersive and realistic game experiences that feel more natural and Jun 20, 2011 · With Sprites you get access to all those handy collision detection functions in pygame. This chapter’s example program will cover this basic technique. We’ll also look at how our pygame programs can accept input from the player through the keyboard and the mouse. It’s particularly useful for games that involve basic shapes or bounding boxes around complex shapes. Each Rect stores left/top coordinates and size. Jul 23, 2025 · These are only a few of the numerous internal features that Pygame has to offer; others include physics, animations, and sophisticated collision detection. Jul 23, 2025 · How to Create Buttons in a game using PyGame? Python – Drawing design using arrow keys in PyGame Python – Moving an object in PyGame Python | Making an object jump in PyGame Adding Boundary to an Object in Pygame Collision Detection in PyGame Pygame - Creating Sprites Pygame - Control Sprites How to add color breezing effect using pygame? Playing audio files in Pygame Exercise Contribute to captain-nemo1/Simple-Collision-Detection-Pygame development by creating an account on GitHub. Nov 22, 2023 · In this tutorial, we discussed collision detection and its importance in computer graphics and game development. Learn how to implement simple rectangle checks, circle collision detection, and pixel-perfect detection to enhance your game development skills. For most things that you’ll do in Pygame, rect collision detection is good enough. colliderect(). Example Jan 2, 2015 · I have been writing this code recently and I wanted collision-detection but I have never done it before and I need help. Lastly, this module contains several collision functions. This guide tackles common issues and provides efficient solutions for Pygame continuous movement. When this intersection happens between your sprites hitbox (the rectangle) and the platforms rectangle (another rectangle) you would I was just writing my second ever pygame game. math. In Pygame, a popular library for game development in Python, you can simulate these physical interactions through simple scripting. Rect class is Oct 29, 2023 · What is Pygame Collision? The pygame module is a cross-platform set of Python libraries designed for game development. We will be using colliderect() in pygame to make it works. Why not use May 27, 2025 · What it Does Beyond Simple Rectangles Unlike basic collision detection methods that rely on simple rectangular boundaries, collide_mask considers the exact shape of each sprite's image. contains: test if one rectangle is inside another pygame. mp4 Pygame time-based physics using delta time (dt) for frame rate independence. Aug 31, 2017 · Collision detection simple game - Pygame Asked 7 years, 5 months ago Modified 6 years, 10 months ago Viewed 612 times May 27, 2025 · Collision Masks If you're using more complex collision shapes (other than simple rectangles), verify that your collision masks are defined and updated correctly. It takes in two Rectangle values and then performs each of the four checks for AABB collision detection and returns the result. This is actually easier with circles. Jun 11, 2024 · Implementing Rectangular Collision Detection Rectangular collision detection is a simple and efficient method for detecting collisions between rectangular objects in Pygame. This project renders a pseudo-3D view using raycasting and supports first-person movement, collision detection, and a minimap. Jun 15, 2016 · I've been adding some extra stuff like Gravity and a table to a simple pong game made with Pygame and Python, the problem is that I don't know how to add collision detection, so when the ball hits There are also more advanced Groups: pygame. Oct 30, 2023 · Simply put, collision detection in Pygame refers to the computational mechanism that checks for the intersection of two or more game objects. Mar 14, 2022 · Are you willing to detect collision between moving rectangles only with that method or you don't mind if there is another one that may do the work for you ? Feb 23, 2025 · Implementing efficient collision detection algorithms can significantly enhance the gameplay experience, allowing for realistic interactions between game objects. Here we will explain how to detection collision between sprites Jul 23, 2025 · Prerequisite: Drawing shapes in Pygame, Introduction to pygame In this article, we are going to use pygame. Okay the game i'm creating is a top down 2D Tilemap Collision Introduction Collision detection and response is a black art within game development. With a little bit of creativity and experimentation, you can use these techniques to create a variety of different games and game mechanics. Pixel-Perfect Collision Detection For pixel-perfect collision detection, you can use Pygame’s pygame. Comparison of Rectangles It compares the rectangular areas defined by the rect attribute of the two sprites. You'll understand the game engine and implement simple collision detection to play the game with friends on the same computer. These help find sprites inside multiple groups that have intersecting bounding rectangles. Example import pygame # Initialize Pygame pygame. When this intersection happens between your sprites hitbox (the rectangle) and the platforms rectangle (another rectangle) you would Related Stack Overflow questions: How do I detect collision in pygame? How do you program collision in classes? How to detect collisions between two rectangular objects or images in pygame Is there a class in pygame to represent a non-AABB polygon? In PyGame, basic collision detection can be done using pygame. OrderedUpdates(). Perfect for beginners with example code and explanations. Features basic movement, collision detection, and scoring. this code is written with python and pygame so it should be simple but I'm Feb 9, 2021 · I am attempting to create a simple test 2D platformer, this is the first pygame project I've undertaken without a tutorial. Here’s a basic example: # Create masks for pixel-perfect collision mask1 = pygame. collideobjects () 2025-05-27 What it Does Efficiency It's designed to be faster than individually checking for collisions between the Rect and each object in the collection. You can define how much of a sprite's area must overlap with another sprite for a collision to be considered "true. May 27, 2025 · Rect. How it Works A simple demo on how to do side-based rect collision response. Rect objects. Jan 23, 2023 · By using these techniques, you can create a simple yet fun platformer game using Pygame's built-in collision detection functions and basic physics. collidelist: test if one rectangle in a list intersects pygame. , pixel-perfect collision, bounding box collision). The pygame. Jun 4, 2019 · I'm trying to program a simple top-down dungeon crawler in Pygame and I've already hit a roadblock in designing my collision response. The sprite module also comes with two very generic collision detection functions. My players moves properly and stop at the rock, where the collision shall happen, but when I reach the rock I can't move away An online book about collision detection using Processing. In the current version of our game we can attack the enemy all we want (and vice versa) but there will be no effect on either. If you don't want to, or are not able to use a form of collision detection/response built into your platform it can be very hard to start. Jan 8, 2025 · Learn how to use Pygame's colliderect method for sprite collision detection in Python. Collision Detection This method is used to efficiently check for collisions between a rectangular object (Rect) and a collection of other objects. May 27, 2025 · Mastering Pygame Collisions: Understanding Rect. RenderUpdates() and pygame. This project is a simple 2D physics simulation implemented in Python using the Pygame library for objects visualization. Jan 19, 2021 · Collision detection systems show up in all sorts of video games and simulations. And if you ever decide to move that image around, it's much easier to update position and animate. Control the snake with arrow keys, eat food to score points, and avoid hitting the walls. Jul 11, 2025 · 2D collision detection Algorithms to detect collision in 2D games depend on the type of shapes that can collide (e. Rect(x, y, width, height), they align with sprite/surface positions for hitbox creation. The reason is because we haven’t implemented collision detection between them, which is what we’ll be doing in this pygame tutorial. Contribute to captain-nemo1/Simple-Collision-Detection-Pygame development by creating an account on GitHub. If the distance is less than the sum of the two circle's radii, then you've collided. Oct 29, 2023 · Step into the world of Python game development with Pygame’s powerful collision detection function – “pygame collide”. It doesn't consider the actual pixel-perfect shape of the sprite's image. In this tutorial, we build a basic Pygame application that demonstrates collision detection between a player-controlled character (Dino) and an obstacle. You might need to slightly increase or decrease the size of sprite rectangles to account for minor overlaps or gaps. Overlap If the rectangles intersect at any point, the function returns True, indicating a collision. For more complex games, these really won't work for you, but you can easily grab the source code for them, and modify them as needed. Group () for batch processing. In this article, we will be detecting a collision between two objects where one object would be coming in a downward direction and the other one would be moved from the left and right with key control. You can then move a larger blue sprite around by using the arrow keys or by using the mouse. draw. But how can I do more complex collisions with arbitrary polygons? Is the only option pixel-based col This tutorial is all about Collision Detection in pygame using Python. In this guide, we will cover the essentials of collision detection in both Pygame and Turtle. Jul 15, 2025 · The simple and straight forward concept is to match up the coordinates of the two objects and set a condition for the happening of collision. collidelist 2025-05-27 What it does Returns Index If a collision occurs, it returns the index of the first rectangle in the list that collides with the single rectangle. mask feature. When a collision is detected, appropriate actions can be taken, such as triggering sound effects, updating object states, or applying physics calculations. Rect objects, sprite collision functions, and mask-based methods with practical Python examples. 7 or higher Basic Python programming knowledge A code editor (VS Code, PyCharm, or Sublime Text) Installation Steps Install In this video, I show you how to do Pygame Collision Detection! This pygame collision detection tutorial teaches you how to do pygame collisions, including a pygame collision example. rect attribute assigned. Collision detection can be accomplished using code that ranges from simple if statements to complicated algorithms handling thousands of objects at once, and even libraries that simulate realistic physics. You’ll gain practical skills through code examples, visual diagrams, and best practices Summary: Mastering collision detection is key to creating polished Pygame experiences. This minimizes the number of checks and speeds up the game logic. Here's a preview of the simulation: Collision-Simulator. Welcome to our Pygame Tutorial Part 2. Vector2 / distance_to() for the computation. The Rect (@Darthfett) and spritecollide methods are the more popular ones, but there are 2 others that you can use: May 24, 2024 · This code is simple example of a Pygame program that shows collision detection between the player and enemy sprites. This module contains several simple classes to be used within games. Incorrectly defining sprite dimensions or hitboxes. Accuracy While collide_circle is efficient, it might not be the most accurate for irregularly shaped sprites. A simple implementation of the classic Ping Pong (Pong) game using Python and the Pygame library. Building a simple top-down shooter game using Python and Pygame is an excellent way to learn about game logic, collision detection, and enemy AI. Each part of this code contributes to creating a basic, yet interactive and fun, ball game. , Rectangle to Rectangle, Rectangle to Circle, Circle to Circle). Loved by beginners and seasoned developers alike, it simplifies game development with intuitive APIs for graphics, sound, input handling, and collision detection. Feb 13, 2025 · Learn how to build a Pac-Man game in Python with Pygame. I use an axis-aligned bounding box for the purposes of Aug 22, 2016 · 9 Collision detection for arbitrary shapes is usually quite tricky since you have to figure out if any pixel collides. The following small pygame program shows how collision detection between a red sprite and the blue box can be implemented. Note there are comments here, but for the full explanation, follow along in the tutorial. The Sprite class is intended to be used as a base class for the About A simple Snake game in Pygame. circle(display,(self TL;DR Mastering Pygame empowers Python developers to create engaging 2D games, from simple prototypes to complex experiences. Feb 10, 2025 · About 🕹️ A Simple 2D Ball Game using Python and Pygame | Features smooth ball physics, paddle movement, and collision detection. Jan 9, 2020 · Hi i am currently working on a mini game for class (first time doing something like this) and i dont really know how to start with collision detection at all. A simple demo on how to do side-based rect collision response. colliderect: test if two rectangles overlap pygame. mask for more accurate collision detection. When I came across the challenge of trying to detect collision for quite a complex shape. By focusing on basic mechanics like player movement, shooting, and enemy interactions, you can create an engaging experience that challenges players' skills. . A simple pygame program that simulates collisions between two moving rects. In this video I will explain how to check for collisions in Pygame. Pixel-perfect collision detection takes more code and it’ll make your games run slower, so you’ll only use it if you really, really need it. Aug 5, 2015 · I recently have run into a problem with a simple collision detection test in my Pygame project. sprite. Decouple simulation from rendering for a robust, deterministic game update loop. This method is more complex but provides accurate results. Aug 28, 2015 · I wrote a little test to get a feeling for collision detection in pygame. A simple pure python implementation of an pixel perfect collision detection algorithm. Dec 9, 2024 · Easy-to-use graphics and sound libraries Simple collision detection Event handling Cross-platform compatibility Free and open-source implementation Getting Started: Pygame Installation and Setup Prerequisites Python 3. Edge Collision Detection May 27, 2025 · Alternatives Pygame offers other collision detection methods like collide_rect, collide_mask, and collidelistall for more precise checks with rectangular boundaries, pixel-perfect masks, or lists of sprites. mp4 Jan 9, 2020 · Hi i am currently working on a mini game for class (first time doing something like this) and i dont really know how to start with collision detection at all. Includes real-time collision detection, paddle movement, and game-over logic — great for understanding the basics of game physics and event loops. The Rect object offers various methods for detecting collisions between objects. An online book about collision detection using Processing. So far I've programmed player movement, collision detection (only knows when a player hits a wall) and player-to-mouse rotation, the latter of which is disabled to simplify this solution. Sep 25, 2017 · I am developing an action platformer in Python, with Pygame. collidelistall: test if all May 27, 2025 · Collision Detection Methods For more complex collision shapes, explore using pygame. This pygame tutorial covers pygame collision. Stop falling when land on the platform: You can give your sprite a rectangle as a boundary area, and then use Pygames built-in Rect class to detect intersection. Generally you will have a simple generic shape that covers the entity known as a "hitbox" so even though collision may not be pixel perfect, it will look good enough and be performant across multiple entities Feb 16, 2012 · There are many ways you can do collision detection in Pygame. Nov 6, 2022 · How can i make a collision system in the simplest way in pygame, without using classes. collide_mask () is a powerful Oct 12, 2023 · # Title: Collision Detection in Pygame: The Nitty-Gritty # Description: This program demonstrates collision detection techniques in game development using Pygame. Mar 5, 2023 · Learn how to handle collisions in Pygame using the different collision types such as rectangle collisions, point collisions and line collisions. Dec 24, 2024 · To demonstrate how to implement basic physics and collision detection in Pygame, let’s create a simple game where a player character can move around the screen and collide with walls. From installing Pygame and setting up the game window to adding a player, obstacles, collision detection, and score, this tutorial covers everything you need to know. There is the main Sprite class and several Group classes that contain Sprites. In the case of the paddles that's easy, because your initialization parameters of x, y, width, height is a rect. Most existing tutorials Jan 16, 2025 · Efficient Collision Detection: Instead of checking each individual sprite for collisions, use pygame. 4 days ago · In this tutorial, you'll learn how to create a classic Pong game using Python and PyGame. The Pygame Rect already comes with a few collision detection functions that may just do what you need: pygame. The use of these classes is entirely optional when using pygame. For those who are new to utilizing Python for game development, Pygame is a great place to start. You move the red square using the arrow keys and when it intersects with the blue box we get a print statement to the screen. " Collision Detection This function is used to detect collisions between two sprites in your Pygame game. The Rect object offers various methods for detecting collisions between The goal is simple; Players must be able to attack Enemies and vice versa. Start with the simple and efficient Rect methods like colliderect() and collidelist() for most game logic. So, I spent my last few days writing a simple package that can do this for you. It is designed to simulate basic physical phenomena such as collisions, gravity, and friction for various shapes like rectangles, circles, and convex polygons. If you have two circles of radius r1 and r2, a collision has occurred if the distance between the centers is less than r1+r2. org as wel Mar 24, 2021 · I did collision detection, but it works only if I´m moving (when I jump to red squares and i´m not pressing anything, it doesn´t work) so I really want to know how to do collisions better. In this step-by-step tutorial, you'll learn how to use Pygame. collidepoint: test if a point is inside a rectangle pygame. The tutorial covers setting up the Pygame window, updating the character's position, detecting collisions, and visually representing the collision state. Master game loops, collision detection, and GUI design. Since all of the checks are performed using &&, if one should be false then it will immediately return back false instead of checking the remaining, since it's all or nothing for AABB. Perfect for beginners looking to dive into game development with Python. I recommend to use pygame. To use . - larbi67/Simple-Ball-Game-Pygame Nov 17, 2025 · PyGame is a powerful, open-source library for creating 2D games and multimedia applications using Python. from_surface(surface1) # surface1 is the image of the first object Aug 22, 2016 · 9 Collision detection for arbitrary shapes is usually quite tricky since you have to figure out if any pixel collides. When starting the example 200 sprites is added to the screen at random locations. The classes are fairly lightweight and only provide a starting place for the code that is common to most games. The method itself is simple. Even the collision between a rectangular and circular object such as a paddle and a ball can be detected by a collision between two rectangular objects, the paddle and the bounding rectangle of the ball. With Python’s simple syntax and Pygame’s robust library, creating engaging games and animations has never been easier. Without collision detection: Balls would In our games, collision detection will determine whether two rectangles are overlapping each other. Simplify the collision detection logic for testing purposes. 1 day ago · This guide will break down how to check if two Python instances share the same class, with a focus on practical applications in Pygame collision detection. It's required in huge variety of games, but is sufficiently maths-y and hidden to make it a challenging subject for newcomers. Nov 3, 2023 · What is Pygame Object-Oriented Programming? What is Pygame OOP for? Why should you learn Pygame OOP? Setting up Pygame Creating a Simple Game Loop Creating an Object Moving an Object Event Handling with Pygame Collision Detection Rendering Objects Adding More Features Moving in All Directions Adding a Display Score and Game Over Condition Where To detect if 2 circles (respectively balls) are colliding, you've to test, if the Euclidean distance between the circles center points is less than the sum of the radii. Jun 14, 2022 · There are a couple of ways you can detect collisions in Pygame, the easiest in this case, I think, is to use Rect. But using the In this tutorial, we build a basic Pygame application that demonstrates collision detection between a player-controlled character (Dino) and an obstacle. Here are some common techniques: Hello guys, i've been adding some extra stuff like Gravity and a table to a simple pong game made with Pygame and Python, the problem is that i dont know how to add collision detection, so when the ball hits the table it changes it's direction like when the ball hits the paddle (right now my table is just moving upward and downward). How does it work? It simply divides the image into simpler rectangles according to the "split value" you specify and stores the rectangle coordinates as NumPy array. Simplified Collision Checkcollide_rect () treats each sprite as a simple rectangle. -1 If no collisions are found. This library allows you to create games and rich multimedia programs in Python. We’ll cover core concepts, methods to compare instance classes, and a step-by-step Pygame example to solidify your understanding. Efficiency If you have a large number of sprites, collision detection can become computationally expensive. g. To find the collisions, the Sprites are required to have a Surface. This comprehensive guide covers essential concepts like the game loop, event handling, sprites, collision detection, and performance optimization using techniques like dirty rects. But how do you actually build these systems? This simple example is derived from the line-by-line tutorial that comes with pygame. sgbpl wzqy yelmo zhrvj zotdbfn hwfv mui moehk ekc obmw klutp juld selxixl imrlp lbn