2D refers to two dimensional space where coordinates are represented with X and Y values.

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0answers
90 views

Storing game resources in the *.dat file format to reduce file size [closed]

How can I store sprites(png) or audio files(wav) in the *.dat file format?
2
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1answer
353 views

My player sprite get stuck to walls while moving along

Hello, My player sprite is moving along the wall (not even diagonal, just straight down) and get randomly blocked in the corner of some walls. By blocked, I mean that the Y movement is stopped. If I ...
2
votes
3answers
226 views

How do you get the best rendering performance in a 2D Java Game?

I have seen a lot of tutorials, and they develop games with 2 different ways: The first one is using a virtual image (BufferedImage) and filling it's pixels. And displaying virtual picture. private ...
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1answer
294 views

How do I render a 2D overlay with DirectX 9?

I'm working in C++ with DirectX 9 on a 3D game, but I want a 2D overlay for rendering a HUD. I've heard that I could use D3DXMatrixOrthoLH, but I'm very confused on how to use it. I'm more familiar ...
1
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0answers
24 views

Unity - RageTools Performance

Has anyone used RageTools for Unity? What do you know about the performance? Is it more performant than using raster, for example with "puppet 2d" or the other way? I'm developing mobile games, so ...
3
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1answer
104 views

PhysicsJS on mobile devices: how to optimize for speed

I'm (physics n00b) developing a small animation (gamification) in a mobile HTML5 app (PhysicsJS, HTML5, Cordova, Ionic, JavaScript). This animation is derived from Basket of verlet constraints. This ...
3
votes
3answers
209 views

2D Collision at corners using C# - without xna or unity

I'm trying to make collision for a 2D game, the player (car) has to collide with the walls of the track when it hits them. I looked into pixel color detection, and X,Y -based collision (But since its ...
1
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1answer
86 views

Pseudo 3D Track editor [closed]

Does anyone know of a pseudo 3D track editor ? I now need one to design my stages, as manually trying to create segments, and position static and movable objects would be too time consuming.
2
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2answers
156 views

Rows of coins in libgdx?

I have my coin image in the assetLoader class, then I import it into gameWorld. My question is, how can I draw() rows of coins without having to write out 15 different coins? i.e., coin1, coin2, ...
4
votes
1answer
114 views

2D Change Velocity Based on Distance XY While Moving Parabolic Arc

What I'm trying to achieve is that the entity moves in a parabolic curve, and no this has nothing to do with gravity before you ask. I give the entity a target position which it should move to, but ...
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0answers
40 views

Black bar in beetween the image when Background move infinite

I'm trying to scroll my background forever and so I'm using the background image twice. When the first one goes off screen, it should relocate to the end of the second one. However, there seems to be ...
4
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0answers
142 views

Can a sprite be rendered with thickness in Unreal Engine?

Is there a convenient way to have a 2D pixel art image with transparency (not partial) rendered with a thickness in Unreal Engine? Paper2D does exactly what I want, except it's a flat plane. I'm able ...
4
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2answers
489 views

Procedurally generate rivers for 2-d heightmap terrain

I created an algorithm to procedurally generate 2d worlds based on a heightmap grid. (I used a 2d simplex noise algorithm mapped on the inverse of the distance of each pixel from the center, to "...
0
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2answers
97 views

How do I make sprites overlap eachother based on a layering system?

In Unity, I am building a 2D puzzle game, however I need to make sure that certain sprites are rendered on top of other sprites when they are above them. Here is an example switch (left) and block (...
1
vote
1answer
196 views

Most efficient way to calculate angle between two line-segments that do not necessarily touch each other

Although I found answers on calculating angles from vectors, I didn't find a specific way to calculate angles between line-segments that do not necessarily touch each other (I say "not necessarily ...
2
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1answer
290 views

Unity 2d diffuse sprites not rendering on mobile

EDIT: Just an update, did change from sprite/diffuse to Diffuse and zordering of my level using t2dtk map stuff was backwards. Like the camera flipped around so i had to shuffle things around on the ...
4
votes
2answers
68 views

2D Collision Box Clipping

There is this strange issue with the collision in a game I am making. When the player is slightly lower than a block it is colliding with from the side, the player ends up clipping to the top of the ...
1
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2answers
82 views

Unity2D - Save everything in a scene before loading another and come back to it?

So I have am into this endless runner thing where everything is generated randomly from prefabs. Okay cool! But I am currently working on a bonus collectible which takes the player to another scene. ...
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2answers
124 views

What software to use to make games for free with commercial use? [closed]

I am going to make a 2D game, I need free software for my team of five or less people. I should be able to sell in-game currency but the game will be free. The software should be able to compile the ...
3
votes
1answer
212 views

How can use a 3D map with 2D characters (Unity)? [closed]

I tried to search something about it but I can't find any complete or well-explained tutorials about how to use a 3D map with 2D characters and items, like Ragnarok or Final Fantasy Tactics. If there ...
1
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0answers
42 views

Change gui in java game

im making a 2D Server/Client game, i have very little to no problems with the server but now i wanna work at the client. I think about using a JFrame and all the other gui classes/methods. My question ...
1
vote
1answer
69 views

2DRaycast is shooting slightly in wrong directions

I wanted just a simple 2DRaycast, which points from my character to my mousePointer. So I found the following code in the Internet, most people seem to use it like that. So I tried it, but it isn't ...
3
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2answers
819 views

Unity 2D Alpha cutout layer for Sprites

I'm trying to make a simple Fog of War effect for my 2d game, similar to these: . I want to have a sprite layer of black and then have a sprite to cut out itself from the black layer, leaving a ...
3
votes
1answer
264 views

How can I exploit multithreading in collision resolution?

I'm trying to speed up my collision resolution by using multiple threads. I'v read through Box2D's source code and while it was challenging and educating, it didn't really point me to how I could use ...
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3answers
231 views

What are the basic equations in 2D physics collisions?

I'm making a 2D fighter, and I have gotten a basic engine, but right now I need to add the collisions, but I'm sure a basic AABB check will not be enough. I'm sure it needs some basic 2D physics ...
6
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4answers
426 views

Rotating sprite around another sprite

I am building a pool game, and I want to make the cue rotate around the white ball. Here is the live code: http://199.26.84.223/nocol.html Here is the code for the white ball: balls = game.add....
4
votes
1answer
698 views

Tetris: 2D Rotation Matrix?

I'm creating a Tetris clone right now. I've got the tiles of tetromino stored as an std::array<tile, 4>. Each tile holds its (x,y) coordinates relative to the piece. For example, the t-block is: ...
3
votes
1answer
93 views

Collision happens even though the objects are not colliding according to what we see

I'm trying to build a pool game as my first phaser project. The biggest challenge today was to make the cue rotate around the white ball. After hours of searching and not finding anything useful (...
3
votes
1answer
265 views

How to implement 'Fog of War' in SpriteKit or Cocos2D?

Take a look at the image below from the game Warcraft 2. There's a darkened area (like a fog) that represents the limits of the 'field of view' -- to the effect that you would not see any enemy ...
3
votes
1answer
648 views

Switching from Arcade to P2 physics in Phaser

so i just started using phaser for test i've followed the tutorial in the phaser website (making-your-first-phaser-game) everything is clear no problem . but since i've making a pool game i need ...
1
vote
1answer
116 views

Transform.LookAt rotates the sprite and collision not triggering

I've applied the below script to a gun object to instantiate bullets to the direction of the mouse position. The bullet collision is not getting triggered since the bullet has been rotated. How to ...
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0answers
56 views

Is this a good way to “get rid of the sprite shakes” for my sprites that “target” other sprites? (XNA)

I'm relatively new to XNA, but very proficient with C#. I want to know if this is the best way to solve the sprite shaking problem. I had a sprite class that can target a place/other sprite on the map ...
1
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1answer
48 views

matrix transformations 2D - place in world-space but keep size in “object/screen-space”

I have a question concerning matrix transformations. I Think I know how it could be done, but Im not sure its the best/correct way to do it. I want to apply World translations and rotation to an ...
1
vote
1answer
98 views

Python - Holding down key to move a sprite works, but only in one direction [closed]

I've been testing out movement for a fighting game that I'm creating in Python. The problem is that when I try to move the sprite, it moves correctly to the left, but only ever works in that ...
1
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0answers
62 views

2d stealth-type collision

I'm curious as to how stealth games work. I am working with 2d right now to get the hang of it, and so far I have come up with the following ideas. create a bounding circle around the player/enemy ...
0
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1answer
109 views

Certain Unicode Characters not displaying when setting text to TextButton in libgdx

Ok I am trying to do a word game much like Hangman Pro but for a different language(specifically amharic) using libgdx . And I have got a list of words saved to text file and I have taken care of BOM ...
1
vote
1answer
74 views

In Physijs, how do I detect that an object is still?

I have a cylinder that simulates a flipping coin. I am using Physijs. The coin might bounce off the surface multiple times before stopping. How can I know when the coin has completely stopped moving?
5
votes
2answers
193 views

How do I turn an image into a Box2D physics object?

I'm using Box2D for a Game Programming course, and I was wondering if it is possible to choose the best shape and size of shape for the rigidbody/fixture for a sprite based on its transparency. I've ...
1
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1answer
76 views

Unity LoadLevel Loads Late

We are developing a 2D game for Android on Unity. It's our first project, we don't have a lot of knowledge on Unity. We have 2 scenes, in first scene there is only a "Play" button. When that button ...
1
vote
1answer
711 views

Monogame shader not working

I'm trying to use this this tutorial in monogame, but the effect does not work, only renders a black screen. Everyhing by itself renders just fine, I looked at the render targets if they get drawn to, ...
0
votes
4answers
285 views

Is database necessary? [closed]

Hi I have studied c# for good few months and I'm at intermediate level at the moment. And few days ago I decided to make simple 2D Games like "Mr Jump" after studying Unity. So my question is as ...
0
votes
1answer
115 views

How do I create a playing field of collapsing bubbles, as in Tsum Tsum?

Tsum Tsum App is a pretty interesting game and I am wondering how the main play area's data structure is, erm, structured? Characters are stacked, disappear as the player swipes over matching ones, ...
15
votes
2answers
2k views

How to avoid ghosting when pressing multiple keys?

I am working on a 2d side-scrolling pc game that uses SFML game library. The problem that I am not able to solve is that in many keyboards combination of three or more keys (like w + d + k) is not ...
1
vote
1answer
205 views

Libgdx are textures off screen rendered?

Let's say that my code looks like this: OrtographicCamera camera=new OrthographicCamera(); camera.setToOrtho(true, 100, 150); SpriteBatch spriteBatch=new SpriteBatch(); spriteBatch....
2
votes
1answer
169 views

In a tile-based MMO, how do I decide which players need to receive what updates?

I am planning a tile based MMO, like Tibia or top down Minecraft. I'm using a client-server model. I've got almost everything figured out, with a notable exception of state updates. When information ...
2
votes
2answers
180 views

Pseudo 3D curve problem

I've converted CodeinComplete's Pseudo 3D road routine to use SDL2 - unfortunately for some reason the curves are incredibly jarring (both entering and leaving it). I've also converted it to ...
2
votes
1answer
247 views

Unity2D 5 - Flickering sprites on Android

So the game had been working fine for a few days on Android phone without any issues. Today, after adding some scripts and tweaking the game a little bit (tweaks which have nothing to do with the ...
4
votes
1answer
530 views

Memory-Efficient, Optimized Terraria-Like 2D Lighting

I am working on a terraria-clone and I am aiming for it to be able to be run on most Android devices. I am able to generate a world, jump around, etc but I am not looking to add in some efficient ...
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1answer
122 views

How to create 2D cameras in swing?

What is the best way to create a camera for a 2D platformer using swing, and I want to create a camera that moves instead of moving the background. This is because I'm going to have objects rotated by ...
1
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0answers
112 views

Bold black bar on right side of game in Unity (Android)

I am trying to create an endless runner. I have already created a system to generate infinite backgrounds from an array of some. However, on running the game, I get huge black bar on the right side of ...