Platformer | Learning webgpu in rust by making a simple platformer | Game Engine library

Big story short: I'm using matter js with phaser3 and I have a player, platform, saw and tree. Like in a regular platformer, the saw should be halfway between the ground and the air/space.

The problem is that the platform is a physics body, and so is the saw. The player has to collide with the saw, a tree, the platform. And the saw needs to collide with only the player and not the platform. I thought of using collisionfilters, but I don't know which layer to put it on. Any help would be greatly appreciated. The jsfiddle for a minimal reproducible example is given below. Thanks!

Jsfiddle: jsfiddle.net/prateek_1/6Lsjf9w4/29

So I'm trying to make a platformer game. Since I'm new to pygame library, I'm following a video tutorial(https://www.youtube.com/playlist?list=PL8ui5HK3oSiGXM2Pc2DahNu1xXBf7WQh-). And I ran to a problem. I checked documentation, tutorials, I even found somebody here that asked the same question. But nothing worked. So what did I do wrong and how can I repair it?

Player class:

So I'm making a platformer in pygame and I was quite far along in the code when I changed how the levels where gonna be set up so I now needed to have the player start at the top of the screen instead of the bottom so it was simple I just needed to change the attributes witch I call into my player class so tat the position can change as that's how it was set in the first place but the player just kept starting in the same place

So I'm making a basic 2D platformer game with the pygame module in python. Recently I've been trying to implement infinite world generation, but have been having some problems. The generation works fine, however, at the player's spawn, a bunch of random tiles spawn, obstructing the whole spawn area. I can't seem to find what's causing this. Here's everything you need to replicate my situation:

map generation:

First of all I want to apologise for my English cause I come from Poland and I'm still learning. I'm a beginner C#/Unity programmer and I have a pretty stupid/noob question/issue where player jumps twice when mashing the space. When the framerate is low for ex. 30, the problem occurs almost everytime and when framerate is for ex. 144 - hardly ever. I did some research and tried different methods. Firstly I checked whether I have all my inputs in Update and not FixedUpdate. That wasn't the problem at all. Then I tried replacing Input.GetKey to Input.GetKeyDown and GetKeyUp in Update as to ensure I have my boolean _spacePressed checked or not. That wasn't the solution too. The third thing I tried was to use Raycasting to check whether the player is grounded. With that I also checked whether when I jump, ray doesn't get checked twice. To make things clear I'm currently trying to make a 2.5D platformer. So to sum up I'm asking what could be the main issue (with input probably) where player jumps twice or even three times in a single frame when mashing space. Here's also my prototype code. I used enums to make a simple state "machine". If you have also any advice for me and my code to make things better apart from my question I would love to hear them. Thank you in advance!

i have one problem which i can't understand and please help me(sorry for big code), but you should be able to see whole picture

I'm trying to create a platformer game, and I want to maintain 60 FPS in it without having the sprite animations move really quickly. I've seen other answers on how to do so using the time module, but I don't really understand how to apply that.

Main Code:

i'm beginner on unity and game development. i'm trying to make a platformer game with unity, and i want to play a animation when the player is moving right or left, but the problem is that the isMoving variable for some reason is true animation is playing for a few moments (less than a second) and then is going to false again and the idle animation is playing.

My Animator (Exit time is disabled for all transitions):

My Movement script:

I am starting to make a 2D platformer. I figured out how to make the character jump, but when I tried to add in Collision Detection to make it to where the player can only jump on the ground, it wouldn't work. Here's my code: