game_manager | Game backend data statistics platform

This is my first post so please let me know if I should alter anything.

I am attempting to create a simple test 2D platformer, this is the first pygame project I've undertaken without a tutorial. The issue I am encountering is due to this can_jump variable. I am using this variable to stop the player from being able to jump when not on a platform or the bottom of the screen. I had attempted other methods but this is where I have ended up. I feel I've gotten so close.

The issue at the moment appears to be that the variable self.can_jump1 continuously swaps between True and False in the platform loop (at exactly 3 Falses for every True I have noticed) when standing on a platform, I have isolated it to the commented section in collision_check(). I don't know why this happens, and as far as I can tell the rest of the code works as I want it.

I would be happy to provide any extra information/clarification if need be.

Here's my code:

here is a more basic question, since I am not too familiar with Android Studio and I am not sure what the correct phrases are to find it in the developers guide or here on SO.

My Question:

How can I handle 3 activities (A,B,C), starting with A, going to B, and then have a constant exchange between B and C?

When using the classic Intent calling approach everything is fine from A to B but going further gets me to A not to C. There seems to be a little delay and a white screen then, like if the application tries to open activity C but fails. I am passing a seriable object through all these activities. The object gets created and initialized in A. B displays the information in the object and let the user change some of it. C let the user change a special place in my object. I other words this object works as a persistent place to store information at the exchange between B and C.

Intent call in A (MainActivity):

I have the same code but in one way it's working and in other way it's not. When Im putting this code in one file then it's working, but when im using imports with babel then I get an error. Code example:

I want to send the snake that i initialized in the code #1 to another file in another class in code #2 and add it there in a self.snakes list

code#1: (class Snake)

I was given an interface (game_manager) that I can write the method's body but cannot add anything to it. I need to get my superclass inputs from the interface.

I have a superclass called Game that inherits from game_manager.

game_manager.h : (interface)

I am looking for a way to access an array item in an array, which is held by another array. I can't quite figure it out :/

I have 2 scripts: Game_Manager.cs and Board.cs.

In Board.cs I have the following variables. (The array size adjusts automatically on start):

I've been working on a Quake 3 BSP Loader in OpenGL and C++.

And I've ran into a problem, when I run my code. I get a problem, it says "heap has been corrupted!" in debug mode. I have commented the line it corrupts on. My comment is 'gives me the error at this line "Heap has been corrupted"'

I'm struggling with collision between the collision rectangles of my player or enemy and the level/wall.

The level is a 1D array.

This draws well: a screen with a platform and a box around the level, so the player and enemy shoudn't be able to leave the arena.

In my Game_Manager class (which handles the game, it's updates and the collision) draws the level, the player and one enemy. Works well, but the player and enemy can leave the area, because the collision detection is not right:

In my Game_Manager class the player detects the enemy and it's position is reset when they collide: