2D games are drawn in a two-dimensional space using two-dimensional objects. To represent its position, each game object will have an `x` and a `y` coordinate.

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5
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1answer
903 views

How do I create a 2.5d parallax effect?

I have a decent background in 3D graphics and programming, but I'm new to game development. I'm currently exploring different possibilities and I really want to make an RPG game. I was thinking about ...
1
vote
3answers
361 views

Bouncing ball isssue

I am currently working on the 2D Bouncing ball physics that bounces the ball up and down. The physics behaviour works fine but at the end the velocity keep +3 then 0 non-stop even the ball has stopped ...
0
votes
1answer
93 views

How can I compute a velocity proportional to the difference between two hand positions?

I'm working on a project with the Kinect SDK and XNA 4. I need take the position of the hands and draw a sprite over it. I'm was doing it directly and because of that I get a "trembling hands" effect. ...
0
votes
0answers
190 views

Best way to go about sorting 2D sprites in a “RPG Maker” styled RPG

I am trying to come up with the best way to create overlapping sprites without having any issues. I was thinking of having a SortedDictionary and setting the Entity's key to it's Y position relative ...
1
vote
1answer
977 views

android: How to apply pinch zoom and pan to 2D GLSurfaceView

I want to apply pinch zoom and panning effect on GLSurfaceView. It is Image editor, so It would not be 3D object. I tried to implement using these following links: ...
0
votes
1answer
173 views

Obtain rectangle indicating 2D world space camera can see

I have a 2D tile based game in XNA, with a moveable camera that can scroll around and zoom. I'm trying to obtain a rectangle which indicates the area, in world space, that my camera is looking at, so ...
0
votes
1answer
150 views

Isometric displaying two different images in different positions

I'm creating a simple Isometric game using HTML5 and Javascript, but I can't seem to get the display to work, at the moment i have 9 tiles that have X and Y positions and the player has a X and Y ...
2
votes
1answer
328 views

Drawing Sprites at Correct Z-Index without A Sprite Map?

My game is in HTML5 canvas, but I assume this concept applies to any language. In the past I've used a multi-dimensional array to keep track of sprite positions. Here is a simplified example: [ [ ...
0
votes
1answer
88 views

Using versors for movement

The context I was thinking of using a versor + velocity field to implement the "moving" part of a 2D game object. For example, if the player should move right I just set the versor to be: [1, 0] and ...
3
votes
2answers
220 views

Subdividing a polygon into boxes of varying size

I would like to be pointed to information / resources for creating algorithms like the one illustrated on this blog, which is a subdivision of a polygon (in my case a voronoi cell) into several boxes ...
9
votes
2answers
304 views

Falling Blocks and complex shapes

I currently have a simple Tetris-like game and have come across a problem I cannot solve. Unlike Tetris where there is a single falling shape, I have multiple, potentially interlocking shapes that ...
1
vote
1answer
314 views

What's the most memory efficient way to load a tiled map?

Currently I am working on a simple 2D platformer and I want to load a tiled map. What I've started working on is loading the tiles using a text file. My first question is simple: is a text file the ...
2
votes
1answer
194 views

Fine-tuning parallaxing objects in 2D games

I'm making a 2D platformer game and I'm having a hard time figuring out how to fine-tune parallaxing objects in-game quickly enough. Problem is I don't even know how to make it faster, so I'm ...
0
votes
1answer
367 views

How can I get animated bone's transformation in LibGDX?

I am trying to get transformation from a bone, but i can't, I exported just a animated armature with just a bone from blender, then I converted to .g3dj, so I just need the bone transformations so ...
-1
votes
1answer
103 views

Render white background with Graphics in Canvas

I am developing a game that I would like the background to be white, and it just sticks to being black. Here is my render method: private BufferedImage image = new BufferedImage(WIDTH, HEIGHT, ...
1
vote
1answer
291 views

Making a 2D TMX tile map

Should there be a specific link between the characters height as well as the tile size for the tile maps? That is if a tile is 32x32 does that mean that a character sprite has to be the same size? ...
-1
votes
1answer
92 views

Problem in animating polygon [closed]

Hi I am trying to move my black colored polygon downward. But As soon as I run my application my polygon gets invisible! I think My logic of move function is wrong. Can anyone help me out in figuring ...
1
vote
1answer
312 views

Project location to perspective fake 3D view

I am trying to implement a perspective view in a 2D soccer game, such like Nintendo World Cup. In this case, the soccer pitch will look like a isosceles trapezoid, but not a rectangle in real. Here ...
0
votes
1answer
284 views

Trouble with a modified parallax scrolling concept

I have a set of layers (each of them being a list of items) moving with different speeds as I mentioned here: http://stackoverflow.com/a/18962019/270197. Layers back in the scene move with slower ...
1
vote
1answer
232 views

Approaches to 2D Parallax

In a 2D scrolling platformer, what is the most efficient way or knowing which things with parallax depth should be drawn? The approach below describes trying to know which things are nearby so they ...
1
vote
1answer
155 views

generating complex maps in xna

I just wonder how does these maps like in this video are made. http://www.youtube.com/watch?v=TM6kcOau5oQ I was looking for some tutorials on the web but no success. All I found was some 2D Vectors ...
6
votes
3answers
426 views

Need ideas for an algorithm to draw irregular blotchy shapes

I'm looking to draw irregular shapes on an x,y grid, and I'd like to come up with a simple, fast method if possible. My only idea so far is to draw a bunch of circles of random sizes very near each ...
0
votes
1answer
146 views

Adding Functionality to a basic Java 2D Camera

Creating a little LoZ inspired game in Java here just to get into the feeling of things (learning CS at my school but the only teacher who's willing to help is travelling for 6-months, so I'm teaching ...
36
votes
5answers
1k views

Best Way to allow players to “Dye” images without losing color quality?

I am creating a 2.5D isometric (2D images) game. I want the players to be able to "dye" their armor, clothes, and other things. I find that grayscaling everything leads to losing out on some of the ...
1
vote
0answers
394 views

Weapon Class Organization [closed]

Im making a game and i want to organise my weapons, and im having a few doubts on not only the best architecture but also on how to use it properly: The First approach is to make a single Weapon ...
4
votes
2answers
384 views

Allowing a player to walk up and down slopes without resistance

I am trying to implement a platformer where both the player and the level are made up of arbitary polygons. One requirement is that the player can stand still on slopes, and walk up and down them ...
5
votes
1answer
3k views

How to use modern OpenGL for 2D games?

I've found a plethora of "modern" OpenGL (3.0+) tutorials for 3D, but I have found next to nothing when looking for information on how to use it for 2D game development. How can I get started using ...
2
votes
1answer
958 views

Rotate image around a specified origin

I'm trying to rotate my Turret.png (small Gunhead with a laser in front) towards the mouses location on the screen. I tried just using my method for rotating projectiles towards the next step on their ...
-1
votes
1answer
208 views

Game Engine Design for the LWJGL [closed]

I'm about to begin on the engine for the game I am making. However, I am quite uncertain how I should design it. I have heard lots about threaded games, component and asynchronous systems. I'm ...
12
votes
2answers
936 views

Should I be using spritesheets, because of or despite of my vast number of images?

I am developing a 2D game, and I have a lot of sprites. I used 3D animations and models to render into 2D, to give them that "Fallout" or "Diablo" look to them. It is also easier than drawing by hand, ...
3
votes
2answers
428 views

What is the range of RAM consumption for the typical 3D character in a video game?

What is the average number of KB in memory for a 3D character? Granted, this will obviously be biased based on what game we're talking about. However, I am less interested in actual size in KB, and ...
-1
votes
1answer
462 views

2D Contra style game - main character 360 degree gun aim

I'm about to make my first simple game. I'd like to know some of the ways to achieve a 360 degree gun aim in a 2D contra-like shooter. The thing is I want it to be 360 degrees, not just 8 direction ...
0
votes
1answer
126 views

Dynamic Shapes and dynamic animations

I saw this video: Video And now I am curious about the following: How can you achieve dynamic forms like they are shown in this video. What I mean is: Do you need to have some "base" models which can ...
9
votes
2answers
748 views

Entity/Component System and UI “Entities”

I'm still green to entity/component systems. I find that since I have useful components for drawing sprites (or spritesheets) and handling input (mouse/touch clicks), I naturally want to reuse these ...
0
votes
0answers
64 views

A way to generate random mazes? [duplicate]

What would be a fairly easy way to create random 2d mazes (which would essentially be paths) in a game? There would need to be a single entrance to the maze and then a single exit, with a lot of ...
-1
votes
1answer
257 views

How do other 2d tile-based web games record their overworld data?

I'm developing a 2d (top down) tile-based strategy game that is web based. It uses PHP and a MYSQL database along with jquery. It was originally a mostly text-based game. I have since developed what I ...
0
votes
2answers
197 views

Spritesheet vs single tiles

I am currently programming a 2d platformer and this is the first time I am coding a video game. Now I've downloaded the 'platformer art deluxe' package. In the tiles folder there are single tiles and ...
7
votes
2answers
344 views

How to implement a tractor beam?

I'm working on a game where the player can pick up objects using something like a tractor beam, and carry them around. Attracting the object towards the center of the beam is not difficult. But once ...
2
votes
2answers
556 views

OpenGL - drawElements 2D imposible z-sorting (textured)

I am creating a 2D program in OpenGL 3.2 Now to render what I do is have a VBO for each texture and add the elements of the objects that use that texture to this vbo. Now as you know the order you ...
0
votes
0answers
221 views

Finding a normal vector

I'm trying to replace my old integer based movement and collision system with a vector system, because its more precise and more flexible. I want to implement wall sliding, such that if a player hits ...
0
votes
2answers
542 views

2D shooting problem on Java using arrayList

I'm trying to shoot missiles according to a direction which a player is facing at. A missile goes towards right iff the player is facing towards right and shoot for instance. It is working but when ...
3
votes
1answer
362 views

OpenGL - Z- Buffer translucency

So lately I wanted to use the Z buffer in opengl to order my 2D sprites in my program. Now I didn;t relaize that if you use the Z buffer then you cant blend these sprites. And some of these sprites ...
2
votes
2answers
510 views

How to implement pathfinding in this situation

So I'm creating a game for android using the libgdx library. I render the map from a tmx file and in it all the water tiles have the property of blocked. My player(a sprite) moves to where I ...
1
vote
2answers
133 views

Twitchy sprite movement

I'm having an issue with sprite movement, and I'm not sure how to deal with it. When I set a destination for my player sprite (by clicking the screen), it sets the player moving in that direction. ...
-1
votes
1answer
493 views

Different Attack Systems in RPG [duplicate]

I'm making a 2d rpg game with libgdx and java, and I'm wondering how I would organize different attack systems - magic, melee, etc. (it's not a turn-based rpg). I have a PlayerClass enum, a Player2D ...
0
votes
2answers
98 views

How to cancel out simultaneous collisions in libGosu?

I am working on an Asteroids remake. When the player's bullets hit a large meteor, it should break apart into 2 smaller meteors. This works when the player is only firing one bullet, but when the ...
5
votes
1answer
280 views

Create extra bullets, offset according to angle of spaceship? [duplicate]

I am trying to create a weapons upgrade for my Spaceship, using libGosu and Chingu (in Ruby). This question is about how to deal with this issue specifically in Ruby, and more specifically in libGosu. ...
1
vote
1answer
119 views

Creating a card dangling affect using 2d sprites

I'm working on a 2d card game for iOS and using Cocos2d. When a player picks up a card and drags it I would like to make it appear that the card is lifted off the table and dangling just below their ...
-1
votes
2answers
637 views

Is there still a market for 2D games?

Do 2D games still sell well? Assume it has nice visuals and good game-play. I want to make games and want to start with 2D, but I am a bit hesitant, I have more than 8 years experience with 3D ...
-2
votes
2answers
194 views

How do I make a game that can transition from 2D to 3D?

My plan is to start from an really old game and build my way up to todays graphics and games. So for example start with Pong and then go to Space Invaders, then go to Zelda and Super Mario. But then I ...