Kevin Powell - Community•2mo ago

OOP guidance (for myself)

I'm having a real tough time grasping OOP for a project in school using Monogame, like I can't quite figure out how to reference variables / sprites and such from other classes, maybe i'm just being silly but I was looking for any in depth OOP guides, tips or even talks from people

35 Replies

glutonium•2mo ago

i mean, tbh, the best way to understand and learn OOP is just through practicing i started with JS classes which helped me get some basic understanding and some intermediate as well right now i am doing C++ which is also kinda teaching me some

Jochem•2mo ago

it would be much more helpful if you could provide help here, so others can learn from it too. I do feel the need to point out that if you're trying to sell anything by asking folks to DM you, and we get reports of this, it's considered a violation of #📝rules 7 If you're just being helpful (for free) and prefer one on one contact, that's fine

unluqyOP•2mo ago

🥲

unluqyOP•2mo ago

idk if that counts as selling but yeah

glutonium•2mo ago

like I can't quite figure out how to reference variables / sprites and such from other classes,

make sure those varables are public. public methods and properties are accessible from outside the class by anyone. idk about c# but there is something called friend in c++ which can grant access to private props and methods as well in case if that helps u in cpp , classes has all methods and props private by default . which means

class Vector {
  int x, y;

  Vector(int x, int y): x(x), y(y) {}
}

class Vector {
  int x, y;

  Vector(int x, int y): x(x), y(y) {}
}

here the x,y and even the constructor is private. so i have to make them public by doing

class Vector {
public:
  int x, y;

  Vector(int x, int y): x(x), y(y) {}
}

class Vector {
public:
  int x, y;

  Vector(int x, int y): x(x), y(y) {}
}

so incase this is same for c# make sure to make them public

Jochem•2mo ago

bro really went ahead and tried even though I just told him... you may want to block him

unluqyOP•2mo ago

already done haha thanks yup theyre public, i guess it's my fault for starting to code in the main game1 folderi nstead of branching and making a class beforehand, i tried even making my new class a child of the main one and still couldnt grab certain aspects that i needed of it though

glutonium•2mo ago

u can try searching up and see if others have faced same issues or not

unluqyOP•2mo ago

for instance, i want to try get a hold of the gameState variable from the main program to make if conditions etc in the new class

unluqyOP•2mo ago

oh okyy okayy

glutonium•2mo ago

also , since this is web dev focused server, it is less likely to get help here there are c# specific servers out there, you'll get better help from there

glutonium•2mo ago

if u just go here and search c# you'll see

unluqyOP•2mo ago

ohh right well thanks a bunch haaha, sorry i thought it meant like backend in general

glutonium•2mo ago

where is this game state var located? like in which scope?

unluqyOP•2mo ago

uhh

glutonium•2mo ago

is this inside the Game1 class?

unluqyOP•2mo ago

i defined it under my game1 class when naming the other attributes but since i made the screenManager a child of that, i shouldve been able to reference it yeah

unluqyOP•2mo ago

glutonium•2mo ago

ok and where r u trying to access this var? in the screenManager class?

unluqyOP•2mo ago

yup

glutonium•2mo ago

so screenManager extends the game1 right?

unluqyOP•2mo ago

yeah (thats all that comes up when i try find it)

glutonium•2mo ago

after u typme gameState, what does it say when u hover over the squiggly red line?

unluqyOP•2mo ago

does not exist in current context

glutonium•2mo ago

i see that your Game1 is a public class while screenManager is internal class, could that be a problem?

glutonium•2mo ago

why is there those 3 dots ? wut does it say

unluqyOP•2mo ago

idk why its saying this tbh

unluqyOP•2mo ago

i can try change it to a public class rq

glutonium•2mo ago

try it

unluqyOP•2mo ago

yeah still nothing

glutonium•2mo ago

this is just naming convntion it seems like classe names should start with uppercase this is just convention

unluqyOP•2mo ago

i have joined a c sharp discord tho so if ur busy dont burden urself with me haha oohh

glutonium•2mo ago

nah its ok imma get dinner rq cya

unluqyOP•2mo ago

mhm! thanks tho (:

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OOP guidance (for myself)