Architecture and code design

[xobust]

Lets discuss our design approach regarding the architecture of the project

[iRobsc]

http://cowboyprogramming.com/2007/01/05/evolve-your-heirachy/ How we could use composition

[iRobsc]

Understanding it https://social.msdn.microsoft.com/Forums/en-US/0b6677dc-3eb6-4eae-9c8f-c042ccbfefb3/what-is-composition-in-c-?forum=csharplanguage

[xobust]

Well this is what I think about when you say that we use composition. dead link removed

[iRobsc]

@macaullyjames

[macaullyjames]

The image link is dead :( If you just drag images into the comment box GH will upload them for you automagically 👍

[macaullyjames]

Ah, found it:

[iRobsc]

What do you think?

[macaullyjames]

My advice would be to have a clearer picture of your MVP before thinking about how you're going to implement it, otherwise you're going to do a lot of unnecessary work :) It's hard to tell whether or not it's good design when I don't know what you're designing ^^

[macaullyjames]

Also, make sure your design is firmly rooted in the framework (MonoGame, right?). You can't design the game without taking that into account :)

[xobust]

Well the design problem that I have the hardest time figuring out is how to have the different entities interact in a good way.

Since it is a game you want the player to be able to interact with the state of the world i.e hit a enemy or leave a room. However you don't want to expose the state of the world to the games entities. I have thought about two ways to solve to solve this problem:

• Message passing. Implement a interface for the game entities to communicate between each other with messages.
• Controllers. Have a set of controllers that can watch and modify the state of the world. I.e a collision controller checks for each game entetiy if its collision box collides with anything, then it calls a function ColidedsWith(Entity collision)

[macaullyjames]

It feels like there should be a "standard" way of doing this in MonoGame, what have other people done? :)

[xobust]

This was the only example project I found http://gamedevelopment.tutsplus.com/tutorials/make-a-neon-vector-shooter-in-xna-basic-gameplay--gamedev-9859

[xobust]

Robert and i discussed how we should implement movement of enemies. My idea is that we solve this by using a controller, similar to how we are going to use a controller to detect collisions.

Here is a short explanation about how the controller will work.

• The controller will be a member of the game manager
• It will have a update function that runs each uppdate
• It will carry a reference to the GameManager object itself
• It will observe and controll the data in the game manager

So for example the enemy movement controller checks the possition of the GameManager.Player and moves the enemies towards him