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

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Unity Physics Material - Character Slides Too Much

I am currently working on a 2D platformer in Unity. I am using a prefab from the AssetStore for my character (The last paragraph contains a link to the prefab). The character has a circle collider for ...
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0answers
89 views

Unable to slice an image

I'm new to game development. I am trying to get two sprites from a single image. After selecting the image I change sprite mode to "multiple" and go to sprite editor. There in preview I draw ...
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1answer
414 views

Incosistent jump, stuttering

I've written this C# code to handle movement in my testing project. The game is supposed to be 2D, some kind of a platformer, just to get me started with Unity. However, it seems there's something odd ...
3
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1answer
255 views

Wall-sliding Collision Response Only Works On One Axis (2D)

"sprite" is the player object, velocity is a Vec2 that tracks movement (is set to -1, 1, or 0 at any given time), each sprite in "sprites" is a wall of the same size as the player (everyone is a block ...
8
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2answers
380 views

How to avoid subpixel values in a resolution independent 2D game with orthographic projection?

I'm trying to do resolution independent rendering of moving sprites in a 2D game. My plan is work in a fixed coordinate system in my world (for example 960x540) and use orthographic projection to ...
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1answer
82 views

How does Texture2D.GetData return coloured pixels?

I'm trying to work out how the pixels are stored in the returned array but I'm not having a lot of luck (and thus my calculations don't seem to be working). I realize that the pixels are stored in ...
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0answers
174 views

How to make a text of several letters animate, only with an animation

I wonder if it is possible to create an animation in a text with a single "animation". The problem is that for me to reach the desired effect I need to create an animation for each letter, as each one ...
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1answer
461 views

Creating a top-down spaceship

I'm creating a top-down 2D space game in LIBGDX for android. When spaceship is going forward it will look like this: when it goes upward I want to change it's direction with a nice animation so it ...
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1answer
218 views

XNA: Camera's Rotation and Translation matrices seem to interfere with each other

I've been following the guide here for how to create a custom 2D camera in XNA. It works great, I've implemented it before, but for some reason, the matrix math is throwing me off. public sealed ...
3
votes
3answers
2k views

How can I dynamically load the correct sprite from a sprite sheet?

I am making a simple card game in unity. The game is based on a standard 52-card pack, with identical backs for unique faces. In my particular game different cards are worth different values and have ...
0
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2answers
259 views

What is the easiest and fastest way to display an SDL_Surface in a window with SDL2?

I would like to have an SDL_Surface representing the contents of the window, just like in the old days with SDL1.2. What is the best and fastest way to do it in SDL2? What I found is that I need an ...
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vote
1answer
2k views

How to make an object move again after being stopped by collision in Unity?

I have a player object which position is always centered on the main camera's viewport. This object has a Rigidbody 2D, a box and circle collider. The player moves around a level, the level has a ...
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2answers
105 views

Fast determination of whether objects are onscreen in 2D

So currently, I have this in each object's renderer's update method: float a = transform.position.x * Main.scale; float b = transform.position.y * Main.scale; float c = Camera....
3
votes
1answer
330 views

Character creation using spritesheets

I am currently creating a 2D fighting game and have implemented a system where upon starting a new game, the player is presented with the option to create a custom character. I have a set of string ...
2
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0answers
570 views

How do I do 2D z-index parallax in Unity3d? [closed]

I am new to unity3d and want to develop a simple game like crazy cabie. I have to implement a z-index parallax for moving sprites towards the player and generating new sprite at the farthest z-index. ...
12
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1answer
2k views

Efficient way to calculate “vision cones” on 2D tile map?

I'm trying to calculate which tiles a particular unit can "see" if facing a certain direction on a tile map (within a certain range and angle of facing). The easiest way would be to draw a certain ...
1
vote
1answer
1k views

Procedual level generation for a platformer game (tilebased) using player physics

I have been searching for information about how to build a 2d world generator (tilebased) for a platformer game I am developing. The levels should look like dungeons with a ceiling and a floor and ...
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1answer
2k views

HTML5 Canvas 2D lighting and normal maps [closed]

How using the HTML5 Canvas can I create a 2D game with light sources and also add an extra depth using normal maps. I have never really done lighting in 2D before and I'm not sure where to start. ...
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2answers
5k views

Algorithm for procedureral 2D map with connected paths

Problem to solve: Generate a random 2D dungeon map for a tile-based game where all rooms are connected. I am looking for better solutions than what I currently have. My current solution is that I ...
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vote
1answer
483 views

Libgdx 2D Game, Random generated World of random size, how to get mouse coordinates? [closed]

I'm a noob and English is not my mothertongue, so please bear with me! I'm generating a map for a Sidescroller out of a 2D-array. That is, the array holds different values and I create blocks based ...
1
vote
1answer
117 views

Warp GameObject Size When Entering/Leaving Area

Below I have an image describing the desired functionality I am going for. Let's say you control a square and when you move this square into a given area, any part of your rigidbody/model inside of ...
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vote
2answers
556 views

How do you break apart art into components for animation?

I am a programmer and brand new to the game world, trying to get a sense of what it would take to draw simple characters like you'd see in Don't Starve or indie games like that. I have seen in their ...
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1answer
298 views

Data structures for territories in a 2D map

I am diving into game development with a 2D game. The game will display a territorial map (borders, capitals, etc.). What is a common data structure to use for storing and manipulating the data in ...
3
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3answers
195 views

How do I get rid of this coloured border on my sprite?

I'm working on a 2D game in Unity. My triangle sprites display in-game with a line along one of the transparent sides: Larger view here. You might need to zoom somewhat. It's quite obvious on the ...
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1answer
371 views

How to represent a map in a top-down perspective game with low algorithm complexity?

This is the first time I develop a video-game, and I am kind of lost. I would like to know about ways on representing 2D maps on a top-down perspective game... (Like this one: vengadoravg.github.io/...
4
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1answer
584 views

How can I have 2 different images seamlessly tile with each other?

If I Google for "seamless tile" I can find many great answers to create a single image that will seamlessly tile with itself. GIMP even has a filter that will automatically make an image seamless in 1 ...
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2answers
891 views

Surface creation algorithm using points cloud

I am looking for a realtime algorithm to create a 2D mesh using points. But I am quite confused. It seems that Delaunay triangulation can help me create mesh using point clouds, but Meta-balls seems ...
1
vote
1answer
960 views

Gamemaker vs Unity2d - Speed of Development [closed]

I know coding, so programming is not a problem Money is not a problem at all, I can get both GameMaker Master Collection and Unity Pro I want to make a 2d game. So which one is better for speed of ...
3
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2answers
4k views

How do I mask graphics in Unity to create a searchlight effect?

I'm trying to make a searchlight-style punchout mask effect in Unity 2D. This is the effect I'm looking for: That animation is made in Fireworks, using a white to black gradient circle masked on ...
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1answer
88 views

Move an object up while touch is active

I'm trying to move an object towards the top of the screen while the touch is active. This is my current code. When I am touching the screen, the object I'm trying to move just keeps it's place (and ...
-1
votes
1answer
111 views

Code explanation

Can someone please explain whats going on in this code written by Paul Irish I did not understand the draw(). function draw() { var time = new Date().getTime() * 0.002; var x = Math.sin( ...
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0answers
301 views

Picking tiles in an isometric diamond map

I am rendering a isometric map with the following code: for(var x = 0; x < MAP_WIDTH; x++) { this.map[x] = []; for (var y = 0; y < MAP_HEIGHT; y++) { var screenX = ...
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2answers
121 views

Help finding time of collision

I am making a simple game right now and am struggling with collision response. My goal is to someday be able to turn it into a 2D platformer but I have a long way to go. I am currently making this in ...
3
votes
2answers
1k views

Spritekit - gradually apply force vector in different direction (space ship turning)

I have a space ship that I'm applying a force vector to using a joystick for control. I would like this to smoothly fly around when I'm switching directions.. Exactly like minisquadron if you've ...
1
vote
1answer
322 views

Fire Delay Timers

I currently have a turret that can fire projectiles. I can control the delay between shots (fireDelay), and I can control the time needed to reload the magazine of the gun(reloadDelay). I do the ...
0
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1answer
153 views

How to properly generate walls simulating perspective around stone in a cave-like level made of squares?

Long story short. My levels tiles currently look like this: And i want them to look like this: My levels are designed as 400x400 squares of proceduraly generated 0's and 1's, 0 representing dirt(...
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0answers
53 views

Is it possible to reverse perspective projection with simple scale and translate? [duplicate]

Basically I'm asking this question (which seems to have gone un-answered): How to do perspective projection “parallax” but without changing the scale or offset of objects? I'm using perspective ...
2
votes
1answer
1k views

How should I set up 2D animations for weapons in Unity?

I have a character composed of several sprites (legs, torso, head, arms). The character has the ability to pick up weapons, which are of varied types. Each type of weapon has its own animation (...
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1answer
162 views

How do I find the tile I'm standing on?

I want to get the specific tile I am standing on. My Tiles are in an Arraylist so I can destroy them later. How can I do this? Here's my Level-class (where my Lists are): public class Level { ...
14
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6answers
3k views

Creating a seamlessly looping 2D multiplayer level?

A discussion came up recently about how to create a 2D side-scrolling multiplayer game that can have an looping level design (Think of Starbound and how their worlds are looping). I thought the ...
0
votes
1answer
2k views

Camera controller in a 2d platformer

I'm basically bumming around using Unity's 2D creation tools, and I've managed to create a little platformer physics demo. There's a lot of work to be done, but I've got basic movement down, some ...
0
votes
1answer
407 views

How are 2D transformation matrices applied to their targets?

I understand mathematically how transformation matrices work, in that a transformation matrix multiplied by a vector results in a new vector, and we use the matrices for rotation, translation, etc. I ...
20
votes
3answers
3k views

Best way to store game-wide variables

I have an options screen for things like difficulty, resolution, full-screen, etc., but I'm struggling to find the "best" way to store/obtain these variables at run-time. Currently, I've implemented ...
3
votes
2answers
2k views

Simultaneous Animation for a GameObject - Unity3D

Its my second week with Unity. I am doing a 2D game and I have a small GameObject which should change its sprite along with following a definite path defined in Animation Curves. I did both of them ...
0
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0answers
80 views

Using a Quad to cut out a Layer?

Looking for options on this, but I wanted to take a Quad (or other shape), apply a material to it, and have it cutout an entire layer, to reveal the layers below/behind it. Sort of like a portal ...
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vote
3answers
1k views

2D Side Scroller Game Without A TileMap

I want to create a 2D side scrolling game in a similar style as the game "Castle Crashers". (Go to: http://store.steampowered.com/app/204360/ to see some pics of the game). I have experience ...
1
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1answer
3k views

Is game maker studio actually flexible enough to cater to an avid programmer? [closed]

After I got burned by RPGMaker which seemed fine what with the semi-open Ruby-like engine until you encountered some nasty surprises like the draconian resolution limitations etc., I've become more ...
4
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2answers
427 views

Why are my Box2D wheels slipping on ground?

I have a car, set up in Box2D as a rectangle connected with two wheels using WheelJoints: The wheels are defined as follows: FixtureDef wheelFixtureDef = new FixtureDef(); wheelFixtureDef....
2
votes
1answer
135 views

Where to implement textures for tiles?

So I just learned the basics of Java and was ready to try to create a protoype game in the style of Civ. So a tile&turn based game. I created an enum for the different tiles: public enum ...
3
votes
2answers
4k views

How to simulate wind in 2D

for a 2D scenario, I wanted to have a fan blow at an object and make it move with the "wind", how can I simulate the wind under these circumstances?