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.
4
votes
2answers
238 views
Ball bouncing infinitely and constantly
Alright, so I've got hold of some simple physics mechanics, and am currently trying to implement bouncing. Based on the first answer of this question, I've developed the following algorithm:
...
2
votes
2answers
93 views
Create a variety a sprites from a single image in XNA?
I want to be able to take a single image and cut them up into a lot of images to make the sprites. How would I do that in XNA since I only know how to load the texture then use it without changing it?
...
1
vote
1answer
341 views
PNG image as a level map for 2d game
I've been using a tilemap editor for making levels, but I was wondering if there was a way to use PNG images as the level map, as maps created in tiled editor are graphically uninteresting.
...
0
votes
1answer
278 views
Please help me with my 2D isometric tile picking [duplicate]
Possible Duplicate:
How to convert mouse coordinates to isometric indexes?
Okay, I apologise in advance if I make no sense here.
Basically, I've got a simple application that takes in a ...
3
votes
1answer
137 views
Figuring out which direction my object is facing on a 2D plane?
My friend and I were messing around in XNA 4.0 making a 2D racing game. Kind of like this one: Ivan “Ironman” Stewart’s Super Off Road. The problem we are having is knowing which direction the car is ...
2
votes
1answer
180 views
How to do perspective projection “parallax” but without changing the scale or offset of objects?
Hello everyone I have this problem that I have tried everything I could think of. The problem: I am making a 2D game with parallax effect but I am using 3d space so am not simulating the parallax but ...
0
votes
0answers
39 views
Creating transparent image with localGraphicsConfig not always working
Consider using the following, commented-out code (https://github.com/kozie/twodee/blob/master/src/nl/kozie/twodee/Display.java#L135-L136).
This creates an empty image which i'm filling with a mosaic ...
0
votes
0answers
89 views
3D-Engine for 2D Graph Visualization [closed]
I'm planning to use a 3D-engine to do visualization and animation of very large 2D-graphs of data (100k objects) using relatively simple shapes mainly boxes, circles, arcs, rounded-boxes, etc.
...
7
votes
2answers
316 views
How do I visualize parallax layers in a level editor?
I'm making a 2D game in Unity, but this would apply to any 2D game engine.
If I implement multiplane parallax with orthographic cameras, it is difficult to lay out the background layer's sprites and ...
1
vote
2answers
105 views
Filtering (e.g. Gauss blur) on seamless textures but without border artifacts?
I am looking for a way to apply (Photoshop, Gimp etc.) filters to seamless textures without the usual border artifacts. The kernel of the Photoshop Gauss filter for example does not wrap around the ...
3
votes
1answer
192 views
How to edit specific mipmap images in a DDS?
I am looking for a way to edit individual mipmaps within a DDS file. To my knowledge, the NVidia Plugin only lets you create the largest image and then computes the smaller ones automatically. ...
6
votes
2answers
234 views
Identifying quad patterns in a two-dimensional array
In the tech demo I'm trying to make, tetrominoe-style blocks will be placed by the player, at which point the game checks to see if they've made a quad with any existing shapes on the board (a 2D ...
-2
votes
2answers
104 views
Drawing background is very costly/slow [closed]
I'm creating a "simple" Tetris style game for a beginner project. My problem is when I added the background (tiled look consisting of a bunch of squares), the game got very slow. It has to have ...
0
votes
0answers
126 views
Stacking Drawing Matrix for SpriteBatch in XNA
I'm trying to make a 2D engine for XNA with SpriteBatch. My object unit is Entity, which can include other Entities as its children. However, when drawing them, the rotation and scaling stacking do ...
2
votes
0answers
379 views
2D Line drawing with Pixel Shaders
Recently I asked a question, what is the fastest way to render 2D lines using DirectX, and one of the answers mentioned this paper on Fast Prefiltered Lines which uses Pixel Shaders to accomplish ...
1
vote
2answers
310 views
Background blur in 2D game?
In an XNA 2D game, I am thinking about blurring the background slightly to increase the feeling of depth? I am already using parallax scrolling which works pretty well in terms of enhancing depth ...
2
votes
1answer
313 views
More efficient way to implement Line of sight on a 2d grid with ray casting?
Consider a 2d grid of tiles, and an approximated sphere of coordinates - centered on the player - that represents line of sight. The goal is to block the line of sight beyond obstacles (ie walls).
...
0
votes
1answer
73 views
Find the footprint of an isometric entity
I'm working on making a 2D isometric engine in Java. I'm getting into collision detection and I've hit a bit of a problem.
Characters in-game are not restricted to movement from tile to tile - they ...
3
votes
2answers
312 views
Simulating “line of sight” with obstacles on 2d grid?
Ran into an interesting problem. I need to figure out how to simulate line of sight - simple enough, just on a 2d grid with obstacles. Either a grid cell is visible, or it's not.
I can get something ...
1
vote
1answer
99 views
SimpleOpenNI: Check if user hand is in specific area on image
Concerning our Microsoft Kinect project, we need some help.
We control a robot with our movements tracked by the Kinect sensor. We display the depth image of the Kinect sensor on our screen, so we ...
3
votes
1answer
59 views
Retrieve outer most points on a 2d graph
G'day everyone,
I have a 2d graph which has some points plotted on it.
What I need to do is get only the outer most points so that I can connect them up (isn't really relevant).
What I can't seem ...
1
vote
1answer
301 views
Tongue pull effect
I've been searching on the net for several days and can not find nothing about this effect. Even a name for this effect. I want to make a character that can use his tongue to pull objects objects it ...
0
votes
0answers
300 views
Dynamic 2D (1D) map generation in libgdx
I'm currently brainstorming a game idea and I have stuck in one place. I'd like to dynamically generate endless map which looks pretty much like the one in game Hill Climb Racing (Android) or like ...
0
votes
6answers
471 views
Can I develop a game on PC in Java and move it to Android?
I have fairly good experience with Java, but new to Android development. I would like to develop a 2D game which would have animations and online play.
Can I initially develop this game on my pc ...
0
votes
1answer
74 views
Computing orbit direction depending on angle of approach
I'm trying to develop a simple 2D space game with no friction using corona-sdk. In the game, I have several planets which all applies forces to the player according to Newton's law of universal ...
0
votes
0answers
146 views
Rotating towards thumbstick - XNA - Xbox360 controller
I'm doing a topdown shooter game where I controll my character with an Xbox controller. The problem I'm having right now is that when I'm rotating the character it feels like it sticks at 0, 90, 180 ...
-4
votes
2answers
162 views
Programming language choice [closed]
I'm interested in 2d tile game development. What's your experience with that? What programming language would be wise to choose? I am thinking of C# or Java... Either way, I have some experiences, but ...
0
votes
1answer
88 views
Separating Axis Theorem fails at certain angles
I'm currently attempting to add an overlap tester for an axis aligned and orientated bounding box but the solution only seems to work accurately when the OBB's angle is between -10 and +10. As the ...
4
votes
5answers
318 views
How to implement rotating Earth effect in 2D?
I've modeled a photorealistic scene of the Earth rotating in 3DS Max and would like to use it as a backdrop of a menu screen in a 2D game. What would be the appropriate way to implement this effect ...
1
vote
2answers
154 views
Basic plane kinematics
I never did physics in my life and this is really hard for me. I am currently trying to implement movement in the X and Y axis of a plane, in a video game I am making.
What I want to do is, given a ...
4
votes
1answer
153 views
What is the appropriate way to implement collision in 2D worlds?
If I want to create a 2D game map which features areas traversable by a player through standard up/down/left/right inputs, and then have areas that are NOT traversable... perhaps just a bush, or a ...
1
vote
0answers
84 views
2D Java Networked Game Coordinate Updating [closed]
I'm currently developing a networked 2D MMO-style game in which several thin clients (ran in an applet) are able to connect to a server and well, do MMO-style "things"!
Some more background on the ...
1
vote
1answer
238 views
Architecture of “doodle jump” type gameplay infinite looping background
I am planning make a doodle jump type game, character jumping on platforms. A scrolling or doodle jump like background which ll appear to move when character moves upward and appear moving (just like ...
-2
votes
1answer
189 views
What intuitively meaningful 2D transform can three-finger multitouch represent? [closed]
With two fingers on a touch sensing plane, we can "grab" (control) two points within a section of 2D plane.
It means it is possible, using two fingers, to translate, rotate, and scale a 2D object ...
3
votes
2answers
238 views
XNA Why is Texture.GetData one dimensional?
This is question has been really killing me. In XNA when you want to convert an image to color data using Texture.GetData, it only lets you make it a one dimensional array instead of a 2D one. This ...
10
votes
5answers
291 views
What is a suitable input method to use for a 2D platformer on a touch device?
I am creating a 2d platformer game like Super Meat Boy in which precision of movement of my lead character matters. I am using libgdx. The keyboard controls on the PC work precisely, but when it comes ...
-1
votes
1answer
146 views
Tilemap collision detection strangeness [closed]
I have used this code, or code very similar to it, to detect collisions between rectangle shaped entities and a tilemap for a long time. When I read the code it seems to me that it is impossible for ...
4
votes
3answers
162 views
Labeling Areas on a map
I've been wondering how you would go about labeling an area on a 2D tile map. What I'd like to do is associate tiles with an area i.e Forest Area, Desert Area, etc.
Keep in mind this is an idea, so ...
-3
votes
1answer
203 views
Implementation of planets in top-down space shooter [closed]
I am working on a top-down space shooter, and I have come to the point where I need some input on a mechanic. I have implemented enough that I can make this choice; either way will not change the code ...
9
votes
3answers
873 views
Fastest way to render lines with AA, varying thickness in DirectX
So I'm doing some DirectX development, using SharpDX under .NET to be exact (but DirectX/C++ API solutions are applicable). I'm looking for the fastest way to render lines in an orthogonal projection ...
0
votes
0answers
719 views
Issues playing audio with Slick 2D [closed]
Started trying to learn Slick 2D a few days ago and have enjoyed it so far. The only problem is I can't seem to be able to get audio to play. I have tried going through the documentation examples, ...
0
votes
0answers
33 views
High-level (artiste, story-teller friendly) methods of game development? [duplicate]
Possible Duplicate:
Simple game engines / development tools made with artists in mind?
Admittedly as an absolute newbie as far as game development is concerned, I wanted to see if there are ...
5
votes
1answer
217 views
How to draw a trapezoid in OpenGL?
The question seems easy, but you simply change vertex positions to match the corners of a trapezoid but it simply fails. I've tried scaling top and bottom edges like this :
but when I apply my ...
4
votes
3answers
444 views
Boundaries in game development: How do “professionals” do it?
How do professionals do boundaries in a 2D game? The way I do is say I don't want the sprite to move into a certain area:
//Example
if ((playerPosX >= 825) && (playerPosX <= ...
0
votes
1answer
163 views
Iterating 1D array and getting 2D tile position
I know I'm missing something very obvious here, but I have a 1D array that contains integers.I have a map that is 30 x 30 and the center coordinate is 0,0 (This is actually 3D, but I'm essentially ...
2
votes
4answers
540 views
Efficient path-finding on 2D tile-based multilevel map
It's a question I've been thinking about for some time... How do you effiently find a path on a 2D tile-based multilevel map? The map I use, for example, is 2048 on 2048 tiles wide. It has 14 levels ...
0
votes
4answers
432 views
Storing huge 2D tiled map in a txt file
I'm working on a global startegy game that uses a 2D tiled map. The map is to be 8000x8000 tiles large (this size is fixed, the map stays the way it is throughout the game), since I'm covering a large ...
0
votes
1answer
167 views
2D graphics scaling
I've been wondering how to archive kind of zooming behavior with 2D graphics. I'm pretty sure that this is not right term, but let me try to explain my thoughts.
Ok, let's start by defining that we ...
4
votes
1answer
473 views
Implementing a camera / viewport to a 2D game
What is the most practical way to implement camera/viewport to a 2D-game?
I've read, that I should store the object world position instead of position relative to the screen?
Current situation:
I ...
1
vote
1answer
91 views
Simple Bounding Sphere Calculations for 2d game
I'm writing a 2d game and have a question regarding the use of bounding spheres.
I'm kind of OK with the math, but I'm confused about one thing.
To work out the distance between the 2 centre points ...
