Game engines are a collection of libraries and tools that provide a framework to create games.
0
votes
1answer
26 views
Why is my application getting more CPU usage while it's halting the operation
I have a question about the way OS gives CPU time to the applications. Usually when I render my scene with a single object in it I get ~8% CPU usage, but when I stop the framework for further process ...
0
votes
0answers
15 views
Connecting two different engines [on hold]
I've written my own renderer, and I would like to combine this with the BEPUphysics library for physics simulation.
The renderer has its own data structures - RenderableEntity, which has a transform, ...
0
votes
0answers
47 views
What engine runs on candy crush? [on hold]
I´m am curious about what engines runs on candy crush, bubble witch 2 saga. what software is used to build that kind os apss? Unity? gimp, for design ?
3
votes
1answer
70 views
Prewarming in particle engines
How is prewarming in particle engines made?
I have a particle engine and need to support this, which is a feature I have already seen in Unity.
Is it done at compilation, like informations stored ...
2
votes
1answer
43 views
How can I speed up cocos2d game engine?
I am developing a tower-defense game and I want to permit user to change game engine speed ,for example rotation speed of towers,rockets speed ,enemies moving speed ,counters and etc proportionally.
...
2
votes
1answer
56 views
How to subscribe to an event fired from any Instance/Object of type X
I'm currently working on a small game-engine and i'm kinda stuck on finding the right pattern to subscribe to an event fired from any instance of type X.To understand what i'm trying to achieve, here ...
-3
votes
0answers
99 views
How do you make a game like Rust? [closed]
How do you make a game like Rust?
Should I use Cryengine?
How do you support many people and a huge map like Rust?
0
votes
2answers
137 views
How can I support objects larger than a single tile in a 2D tile engine?
I´m currently working on a 2D Engine containing an isometric tile map. It´s running quite well but I'm not sure if I´ve chosen the best approach for that kind of engine.
To give you an idea what I´m ...
-2
votes
1answer
68 views
Is Unity a well suited engine for games with procedually generated environments? [closed]
I've been looking for a suitable game engine for a new project, which will rely heavily on procedurally generated 3d environments. I've been looking into Unity, but it's not clear to me at this stage ...
0
votes
0answers
16 views
Andengine rube loader
I took a look on those 2 project that I found in here:
AndEngineJb2dJson
AndEngineRubeLoaderExtension
As some of you know I'm developing a rolling scene based game
I'm loading all the entities from ...
0
votes
0answers
23 views
AndEngine - Performance problems with many entities
I'm developing a rolling scene based game I'm loading all the entities from a XML file and create them in the Loading Scene recently I increase the game width , and by doing so , in the whole level I ...
0
votes
2answers
72 views
Data oriented design vs visibility
I'm almost sold on the concept of a data oriented engine -- however, one thing still eludes me. If we pack the data from a large level into huge arrays and go over them, any visibility system that we ...
0
votes
2answers
101 views
Without using a pre-built physics engine, how can I implement 3-D collision detection from scratch? [closed]
I want to tackle some basic 3-D collision detection and was wondering how engines handle this and give you a pretty interface and make it so easy ... I want to do it all myself, however.
2-D ...
0
votes
0answers
25 views
Turning on collision crashes game
I am getting a null pointer excecption to both my sprite and level. I am working on my mob class, and when I try to move him and the move function is called, the game crashes after checking collision ...
2
votes
2answers
156 views
C++ property system interface for game editors (reflection system)
I have designed an reusable game engine for an project, and their functionality is like this:
Is a completely scripted game engine instead of the usual scripting languages as Lua or Python, this uses ...
0
votes
0answers
66 views
XNA - Finding boundaries in isometric tilemap
I have an issue with my 2D isometric engine. I'm using my own 2D camera class which works with matrices and need to find the tilemaps boundaries so the user always sees the map.
Currently my map size ...
0
votes
0answers
46 views
Maintaining State in Mud Engine
I am currently working on a Mud Engine and have started implementing my state engine. One of the things that has me troubled is maintaining different states at once. For instance, lets say that the ...
0
votes
1answer
105 views
Separate parts of a game engine [closed]
I'm pretty new in developing videogames. By now I only used SDL with C/C++ to create games. I'm currently learning OpenGL and I realized that to be fluid and easy to maintain the code must be ...
0
votes
0answers
67 views
Zooming in isometric engine using XNA
I´m currently working on an isometric game engine and right now I´m looking for help concerning my zoom function.
On my tilemap there are several objects, some of them are selectable. When a house ...
1
vote
2answers
159 views
What's the difference between an “SDK” and an “engine?”
In delving into Game Programming, I have encountered both SDKs and Game Engines. Please define these, and give their relationships and differences to each other.
-3
votes
1answer
119 views
Is a game engine actually needed to make games? [duplicate]
I see Game engines like Ogre are just software wrappers or software systems to enable easier access to certain features provided by other programmers that are relevant to game development.
However, ...
2
votes
1answer
181 views
How should I traverse entities and components for their per-frame updates?
I am implementing a simple entity/component-based engine in C++ and am unsure about the best way to store references to entities/components and what the best way to traverse them each game step would ...
1
vote
0answers
113 views
Abstracting Game Logic from Game Engine
I've seen that the Quake 3 Engines uses QVMs and DLLs for the gamelogic. Unity uses some kind of Component-Entity system.
My question is basicly:
What's a good way to keep the engine seperated from ...
9
votes
3answers
1k views
How many active shaders at one frame in the game (should I typically use)? 5? Or more like 100?
I have a question: how many shaders are usually active at the same time in one scene in modern games?
I mean: I know that multiple shaders are being used (switching between them in each frame). And ...
9
votes
7answers
3k views
Why do game developers write their own engines instead of using existing ones?
I observed that most of the most, big and well-known game titles developers oftenly develop their own engines - like Valve has their engine, Crytek has their own, Ubisoft has their own, Epic games has ...
1
vote
0answers
52 views
Structure gameobjects and call events
I'm working on a 2D tile based game in which the player interacts with other game objects (chests, AI, Doors, Houses etc...). The entire map will be stored in a file which I can read. When loading the ...
2
votes
2answers
343 views
How can I reduce Unity's package size?
I've been experimenting with Unity3D 4.3's 2D features. I've created a simple prototype game to learn how Unity works, how to create sprite animations, collisions and all the basic things. My ...
0
votes
1answer
74 views
Generating shaders from fragments / HLSL Dynamic Linking in older shader models
In shader model 5 is a feature called dynamic linking which separates hlsl fragments by using interfaces and their methods implemented in classes.
I don't have any experience with this technique, my ...
0
votes
0answers
29 views
alBufferData() sets AL_INVALID_OPERATION when using buffer ID obtained from alSourceUnqueueBuffers()
I am trying to stream audio data from disk using OpenAL's buffer queueing mechanism. I load and enqueue 4 buffers, start the source playing, and check in a regular intervals to refresh the queue. ...
21
votes
6answers
3k views
How to solve the big video memory requirements in 2d game
We are developing 2d game (Factorio) in allegro C/C++ and we are facing the problem with increasing video memory requirements as the game content increases.
What we currently do is, that we gather ...
0
votes
3answers
93 views
How can a game engines renderer be compatible with a 3d modeling software such a Maya
So you create some model in say Maya, you apply all kinds of effect to the model and then export the file.
So then the game engine has to load the file and render it, so surely the game engines needs ...
0
votes
0answers
42 views
Rendering bug in java
I'm using a simple rendering method in java to render tiles. Everything looks fine, but I notice that some rows grow 1 pixel when I move, and dhen shrink back, but I have no idea why.
Infos:
I'm ...
1
vote
1answer
71 views
How to put basic scripting/variable changes into dialog xml files?
I have a simple XML structure for my dialog between the player and NPCs.
What I'd like to do is put variable changes (and maybe other things) directly into the XML. So, for instance, if you select a ...
26
votes
6answers
3k views
Why don't all games permit changing the field of view?
This is less of a question aimed at developing a game and more about the technology behind it. A number of gaming journalists and pro gamers (both on the tournament and the home entertainment sector) ...
3
votes
1answer
65 views
Field of view determination with partially opaque cells
I'm currently implementing the field of view of a player in a 2D-grid based game. I've chosen a standard ray tracing algorithm because he really fits the features needed in my game.
However, the ...
1
vote
0answers
39 views
Maintaining relative location of objects across different screen resolutions
I'm developing a very simple interactive HTML5 game, in which I need to show a room having multiple objects like cupboard, table, fan etc.
How can I bind all of the objects together, so that they ...
2
votes
2answers
133 views
How can I determine the pixels covered by a transformed triangle (without drawing it)?
I have three points that form a triangle in a 3D scene. I want to apply an arbitrary rotation/translation transformation to this polygon and later check in which pixels of an image they would be ...
1
vote
1answer
139 views
How can I manually control the lifetime of actor objects in C#?
I have the following Actor and Scene classes :
public class Actor
{
string name;
vec3 position;
quat rotation;
public void Update()
{
...
}
public void ...
1
vote
1answer
117 views
What are the advantage/disadvantage of publishing a game as Chrome App over Android app?
I have a 2D game on my mind that I wanted to develop. Though I am quite familiar with using Javascript, CSS3 and aware of HTML5's canvas, I am also aware of Chrome App and its ability to work offline.
...
1
vote
0answers
59 views
how to project a collision between a pair of polygons under rotation?
I am trying to create a physically plausible 2d physics engine. I have read many documents about detection of collisions, contact resolving, interpenetrations, projection, separating axis theorem ...
0
votes
1answer
220 views
Planet gravity? [duplicate]
I am trying to make a game with the Phaser game engine and would like to implement some sort of planetary gravity. Essentially I just want the player to be able to walk on a circle or orbit a point. I ...
0
votes
0answers
20 views
make ball to bounce [duplicate]
I'm making a game in GameMaker.
I would like to know the code needed or the condition for a line that the player would draw and then a ball would bounce on it
0
votes
2answers
219 views
Should I use a engine when building a snake game? [closed]
I'm new to game development, and want to build a snake game for Android (Maybe also iOS). I've made several apps for Android and have a pretty good experience with Java.
The question is, do I need to ...
1
vote
0answers
125 views
iOS OpenGLES - Multithread Game loop - Render and Update
I am trying to implementing multi-threaded game loop in iOS.
(Actaully, two thread - Render and Update)
This is my structure.
Update Loop
Has logic and at the end of loop, save update state. ...
1
vote
1answer
89 views
Is there a robust way to get a pointer to a resource when I have a handle to its base type that doesn't rely on dynamic_cast?
I'm building my own pet engine and after struggling with how to handle resource ownership for a while, I came across this question and specifically Josh and Sean's responses (as well as Sean's blog on ...
0
votes
1answer
99 views
Grid collision - finding the location of an entity in each box
I am trying to implement grid-based collision in a 2d game with moving circles. The canvas is 400x400 pixels. Below you can see the code for my Grid class. What I want it to do is check inside which ...
0
votes
3answers
76 views
Getting entity type object [closed]
I have a custom entity class and what it does is create a SQUARE object.
public class Entity {
Rectangle rect;
public Entity() {
this.rect = new Rectangle(20,20);
rect.relocate(200,200);
...
7
votes
1answer
303 views
RK4, Derivatives, Understanding Game Physics
Gafferon Games has a great article on RK4 Integration for building physics simulations which can be found here: Integration Basics
Personally my mathematics and physics knowledge could use ...
0
votes
0answers
47 views
Space invaders 2d array to represent scene [duplicate]
For code optimization purposes, I want to create a 2d array that contains 40 equal squares (10x10px). Each square represents 1\40 of the displayed window (400x400px).
I populate the 2d array with the ...
7
votes
2answers
2k views
Is the source code of the Source Engine available?
Is the full C++ source code of the Source Engine available?
I know the SDK is available with the purchase of a Source-based game, but my goal is to find a open-sourced game engine that includes its ...
