Engine-design related questions. How code is structured.

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1answer
211 views

When to use GameComponents?

I know what it is and I'm using it as a frame counter for example. But when should I use it? Does it make sense to say "I make all the input handling happen in a gamecomponent"? Is it flexible enough ...
2
votes
1answer
279 views

Where to put common System functionality in Entity-System Design?

I am working on an Entity System design based largely off of Adam Martin's design and Ray Wenderlich's Objective-C Implementation. I am working on the AI system using a state machine with a System ...
1
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2answers
682 views

How to make a “GUI In Game”?

My game is very GUI based, the way how it works is that I have a GUI class, which contains the basic GUI elements, a parent GUI object, and a copy of the main game's class object. The game starts out ...
1
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0answers
124 views

Events with Entity Component Systems [duplicate]

I'm currently working on an HTML5 top-down simple RPG game, and as a learning experience I'm building my own little engine from scratch. After reading around a little I decided to go with the Entity ...
3
votes
2answers
309 views

Using a programmable pipeline in a game engine

As a learning experience, I'm developing my own 3D game engine using OpenGL. I'm a little confused as to how to implement my rendering engine such that it uses a programmable pipeline while still ...
16
votes
6answers
5k views

Do you actually use diagrams to model games? [closed]

I mean mostly UML but any method that works is viable. So - do you actually model your games with UML/other diagrams or different methods? I had a subject at my university about modelling with UML and ...
2
votes
1answer
339 views

Different kinds of movement in component based entity system

I am writing a pong clone with a component based entity system. But I am having trouble with the different kinds of movement in the game. The problem is the following: My paddles will just move up ...
4
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2answers
340 views

Separate classes communication

Lets say I have a key and door. My third class (player) needs to pick up a key and open the doors. How should those objects communicate without making too much dependencies between them?
2
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1answer
1k views

Tilemap collision in component based entity system

I am trying to set up a collision system for a tilemap in my component based entity system, but having trouble with figuring out how to do so. Currently I have the following approach: My tilemap ...
2
votes
2answers
257 views

Correct utilisation of gameloop (Android)

When using a gameloop like (much simplified)............ updateLogic(); render(); How does one perform 'single' operations? I mean, things like triggering sounds (which will only be played once), ...
8
votes
5answers
679 views

How can I update Display settings from an Options screen without restarting?

I'm currently creating a 2D RPG in C++11 with Allegro 5 and boost. My goal is to somehow update my game settings when an option is changed in the Options Menu. I don't want to force the user to ...
2
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0answers
50 views

User interaction and Component based architecture [duplicate]

I'm working at my first game and I've decided to build a simple component based engine. I found really useful to work in that way but I still miss some fundamentals probably. Let say that I have a ...
0
votes
2answers
122 views

making different kind of bullets [closed]

I have an enemy which shoots 3 different kind of bullets. They are of different sizes, speed, and representation (rectangle, oval, and a more classic bullet). Should they be 3 separate classes or ...
4
votes
1answer
154 views

Game State and Configuration via Events

Often "singletons" are problematic for testing, so with my next game I'm trying my best to avoid them. But there is bunch of data (configuration or game state information) that different parts of my ...
4
votes
2answers
1k views

Manage VBO/VAO in a graphic engine

I'm trying to make a 2D Graphic engine for training me. I've actually made it with immediate draw and I've made the renderer outside (so I can switch between OpenGL and DirectX). How can I manage ...
2
votes
1answer
138 views

How do I generate paylines and pay dots for a slot game?

I'm working on a HTML5 slot game and am completely stuck on the pay lines and the dots that produce the lines from 1 end to the other. What's the logic behind generating a random number of dots ...
19
votes
4answers
3k views

Game architecture / design question - building an efficient engine while avoiding global instances (C++ game)

I had a question about game architecture: What is the best way to have different components communicate with each other? I do really apologize if this question has already been asked a million times, ...
1
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1answer
65 views

Resynchronize game state on reconnect

Suppose in a multiplayer first person shooter game that a player loses their connection. On reconnect they need to synchronize with the current game state. But while they are getting a snapshot of the ...
5
votes
2answers
2k views

Component based game engine and dependencies - singletons [closed]

I am thinking about how to create component based game engine. I understand that all things should be very similar as in Data Oriented Design (each object is a collection of various structures as ...
3
votes
1answer
271 views

Making up everything from single pixels

I recently saw a game which looked a bit like minecraft, but it was a RPG. The enemies in this game consist completely of voxels and if they die, they collaps and every single voxels falls down, ...
1
vote
1answer
166 views

General Sequence of Events for a 2D shooter

I'm having some trouble understanding ways to sequence events in my game. Assume the game is data driven, what is the best way to control the events? Do I have some sort of EventSequencer that loads ...
2
votes
1answer
1k views

CPU usage, game loop and sleep()

I've read about this topic on numerous discussion sites, but I can't seem to find a clear definitive (up-to-date) answer, and hopefully this will me some more insight: I've read the excellent game ...
1
vote
1answer
951 views

UML Class Diagrams for 2D platformer Games? [closed]

I have to develop a small arcade game in C++ for a college assignment using a 2D Game Engine my teacher coded. What would be the best way to make a UML class diagram for it? It's very basic stuff but ...
2
votes
3answers
703 views

Event-driven vs state synchronizing networking model

I was going through the Tribes network model and the network model used in Quake3. What I understand is that Tribes is more of an event based model where as the Quake model uses game states and delta ...
1
vote
0answers
232 views

Game editor architecture [closed]

I'm looking in to developing a game editor - essentially a level editor for my game but a little more advanced i.e edit menus and loading screens and what not. So far, I have come up with a ...
5
votes
1answer
440 views

How do you parameterize turn based AI?

I would like to create/find an AI algorithm/process that can be parameterized such that a change in the parameters causes a change in the AI behavior. I am specifically looking to apply this to a turn ...
1
vote
2answers
962 views

Packet handling system architecture?

I'm working on a multiplayer Flash game (ActionScript 3) with an accompanying server written in Python and I'd like some tips regarding networking, and specifically, the handling of packets and ...
2
votes
1answer
2k views

Making efficeint voxel engines using “chunks”

Concept I'm currently looking in to how voxel engines work with a view to possibly making one myself. I see a lot of stuff like this ... ...
2
votes
1answer
585 views

Creating Input layouts for different vertex types

I'm still in the planning phase for a hobby abstract renderer, and i'm wondering how i should handle multiple vertex types and different shader inputs. (This is my first graphics project, so cut me ...
0
votes
1answer
220 views

xna creating game stage management contrls

I am under planning stage of my game where I am creating controls for my game. I have create below control for stages but have no idea how this we can achieve in xna. Please also help me with your ...
1
vote
1answer
168 views

Application design for specific points on image

Hi guys I am starting a simple hobby app in Unity, its a 2D app, which have some alphabets like A,B,C..Z (images) . There ll be specific paths where user touch one by one to complete drawing the ...
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votes
1answer
195 views

What kinds of 3D objects should a game engine have? [closed]

I know this is a pretty general question. But I've been looking for different kinds of 3D objects and their names to implement in my engine to boost its speed. Static meshes, dynamic(?) meshes and ...
3
votes
1answer
243 views

Where should I put my mob rendering code?

I'm making a simple LWJGL game. However, I'm a bit confused about rendering. So I have a Mob class and a TriangleMob is a basic enemy. package daniel.entity.Mob; public class TriangleMob { ...
2
votes
1answer
335 views

Not repeating background in platformer [closed]

I need to make not repeating background for platformer. I can't find any description of implementation and I developed algorithm but I'm not sure that it's right. I can't load one big texture per ...
5
votes
1answer
549 views

Character Movement in 3D games

I'm either not searching correctly or there is really not a lot of material on Character Movement in 3D games. I'm mostly interested in how people usually implement character movement in games like ...
10
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3answers
2k views

EXTREMELY Confused Over “Constant Game Speed Maximum FPS” Game Loop

I recently read this article on Game Loops: http://www.koonsolo.com/news/dewitters-gameloop/ And the recommended last implementation is confusing me deeply. I don't understand how it works, and it ...
0
votes
1answer
247 views

Xna “Game.Run” method appears to be using up a lot of resources in my game, is this normal?

The question really is in the heading, but i have been using the visual studio profiler to optmisie my game, i have noticed that the game.run method is eating through 93.6% of the overall game ...
0
votes
2answers
338 views

Attribute ownership in Entity Component systems

How do you typically handle data ownership in these systems? Right now I just have a map that maps type(std::string or hashed int)->void* where outside sources can add attributes via a simple ...
0
votes
0answers
72 views

What's the most efficient way to manage auras & buffs? [duplicate]

I would like to know, for a game that does NOT use a grid (1-dimensional movement, in fact); what is the cleanest way to manage buffs that change a unit's variables? My current system is going to be ...
3
votes
2answers
745 views

Does it make sense to use Lua scripting in a game developed in Python?

Well for C++ written games using Lua scripts for easy changing ai, quets etc is very reasonable and it's common. However now I'm going to write a game in pure python and I don't know if I should use ...
1
vote
2answers
566 views

Powerup Best practices [duplicate]

In a turn based game each player has a set of properties, e.g attack, defence, speed and these can all be used to work out who should go first and how much damage should be dealt. That all works fine, ...
1
vote
1answer
427 views

How can you implement Lua into your game? [closed]

I am trying to implement Lua into my game, but am having trouble. Say I have a weapon class, which is just a hollow shell, lacking real functions. I was thinking of creating an onFire function, which ...
0
votes
2answers
139 views

XNA Game arhitecture, sharing vertices between objects

I'm practicing primitives rendering in XNA and I want to create something like pipe or tunnel. I have base class called PipeSegment from which I inherit classes like RotatingSegment and NormalSegment ...
4
votes
2answers
729 views

Game Editor plugin architecture

I'm creating 3D Game Editor for my own use. As rendering i took Ogre3D and MFC as UI. I faced with architecture problem. I am using Document/View architecture and for each Doc. i create new ...
3
votes
4answers
807 views

How do I prevent memory-modification cheats?

There are many memory-altering programs out there nowadays (Cheat Engine & co). Is there an efficient way to keep a constant variable actually constant? I had two ideas: Make a separate thread ...
6
votes
4answers
643 views

Why should I use separate initialization and clean up methods instead of putting logic in the constructor and destructor for engine components?

I'm working on my own game engine and I am currently designing my managers. And I've read that for memory management using Init() and CleanUp() functions are better then using Constructors and ...
-1
votes
3answers
455 views

adventure game architecture

I would like to make an adventure type game functioning similarly to machinarium or broken sword. The only way I can think of doing this is to draw an image as a background on a canvas and use some ...
4
votes
2answers
445 views

Game state management: the buck doesn't stop “here” soon enough

I realize there are already many Q&As on this site about GameState/GameScreen management, state machines, state stacks, etc. This question is meant as a follow-up: Suppose hypothetically I ...
1
vote
2answers
303 views

How to store different abilities in player class?

So, I have a player class with basic actions. During the gameplay he unlocks new abilities. I don't know how to store new actions within the player class. To be precise - I know how, but my method ...
-1
votes
1answer
697 views

How to store data in a data-driven RPG [duplicate]

Possible Duplicate: Would it be better to use XML/JSON/Text or a database to store game content? I'm working on a 2D data-driven RPG. I intend for it to be modabble; my intention is to ...