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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7
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3answers
4k views

How do I implement occluded lighting in a block-based 2D game?

I want to have 2D lighting that can be blocked by in-game objects. My game has a top-down view and all game objects are described by rectangles. Let's say I have a 10x10 world and I place a light at ...
1
vote
0answers
130 views

2d terrain workflow [closed]

I am new to 2d art and I had a question about the ground part of a level. What does the workflow look like for a 2d game like Dust: An Elysian Tale or Shank 1-2? I want to do that kind of ground where ...
2
votes
1answer
387 views

How to handle scripted events in a 2d java game?

I'm in the planning phases of a 2D java game. The game is a tile-based platformer with some action-y parts to it, like a Metroidvania formula game. The static portion of each stage is expressed as an ...
1
vote
3answers
104 views

Move from point a, to point b, and determine the accuracy

Let's say I have a circle at point a (0,0), and I wish to move it to point b (23,58), whatever, how can I accurately do this with a speed variation if I wanted. (I'm doing this in javascript). Every ...
1
vote
1answer
283 views

Creating big scene and little size chasing camera

I would like to create a climb based game, so I need to have a big scene and a camera that cover only a little part of it and chase my player. This image explains easier what I want: How can I do ...
2
votes
0answers
414 views

Good Book or Resource for 2D Game Art [closed]

I have a very clear idea for my first Game . I have immense Experience in Coding Games in LibGDX but i am very poor at game art . So far I've been hating all the characters I've drawn . Are there any ...
0
votes
1answer
59 views

Need a Push in the right Direction [closed]

I know this been asked a millions of time. First off my Dabbled in a few languages,like Java,C#,Android,Python and unity even though that's not really a language.My Programming is Level as at far ...
0
votes
1answer
6k views

How do I make a game tick method?

I've seen in some other simple 2D games that a "tick" method is used to sync game logic and graphics rendering. My main reason for using this is due to my collision detection malfunctioning, since ...
6
votes
1answer
1k views

Generating a physics body for 2D Worms-like Terrain

I wrote a processing sketch that generates hills for a scorched earth clone, like this: I'm trying to figure out how to make this a physics object in libgdx, but I'm having problems figuring out ...
-4
votes
1answer
350 views

Recommended graphic software for creating great graphics in game? [closed]

I came across a game called Trine2. It has a great graphics here is one image i captured here. Forgive me but I need 10 reputation to upload image so i use external sites. How did they create that ...
0
votes
3answers
490 views

how can we define dynamic Path of ViewObject(Bitmap) On Canvas

I am Currently working on One 2D Android Game, In this game One ViewObject(Bitmap) is moving Across Screen On Parabola Path Like in this Image, But this Path is Static, the Static path is getting ...
0
votes
0answers
52 views

Decaying velocity for simple ball physics [duplicate]

I am writing a little experimental 2D program in Java to understand the basics of physics in games. I read this article on game physics to get me started and want to implement the simple Euler method ...
1
vote
1answer
343 views

Colliding a player and a maze wall [closed]

I am making a game very similar to Tank Trouble. I cannot get t the tank to collide with the maze in the map. Let tx and ty = the tank x and y value. Let x and y = the walls x and y value. Let h and ...
1
vote
1answer
109 views

2D Platform character getting “unaligned” with the map

I'm trying to make a 2D Platform game and so far I can have my character moving around in a tiled map and collisions are working too. So far so good. The problem I'm having is that the character can ...
2
votes
1answer
491 views

Combining 2D and 3D in game engine

I've implemented basic 3D functionality and made little "2.5D" demo in orthographic projection using OpenGL ES 2 and Box2D. Now I want to make completely two-dimensional game (using sprites) and ...
1
vote
0answers
167 views

scale rotating boundingbox

I want to use basic rectangular collision detection. I have a rotating sprite and a method that calculates the bounding box every time in the Update() method. I simply check for intersection between ...
4
votes
2answers
517 views

2.5d with box2d - approaches from the top and bottom

So, I'm using box2d for my 2.5d game (think double dragon, tmnt arcade, castle crashers) where you can move around on the z-axis (faked as y-axis movement). Basically, I have box2d only doing ...
2
votes
4answers
348 views

What is the standard technique for shifting the frames of a sprite according to user input?

From my own experience, I developed two techniques for changing the sprites of a character that's reacting to user input -- this in the context of a classic 2D platformer. The first one is to store ...
0
votes
1answer
2k views

How can I implement infinite scrolling by scrolling the background's texture, not the quad? [duplicate]

I'm writing a 2D platformer game on Java with LWJGL. I'm doing this just for the sake of learning and not the result itself, so when I decided to implement scrolling I did it two ways I could invent ...
3
votes
4answers
3k views

How to smoothly rotate a vector in a direction?

I'm looking for an easy way to achieve the following: Object A, B { Vector2D position; Vector2D orientation; } update(elapsed) { //rotate A's orientation in B's direction by x * elapsed ...
0
votes
1answer
91 views

Dynamically editing a movieclip at runtime

I am trying to make a flash game(actionScript-3 if it matters) to test what I learned so far. And, in the game, I want to make the character(a robot?) customizable. The first solution I found was to ...
1
vote
2answers
325 views

Building a tessellated texture

In games like Minecraft the textures such as grass when lined up side-by-side it looks like one big perfect texture. When I make a texture it's never even and you can see the different blocks. How do ...
4
votes
1answer
564 views

2d coordinates vs x/y screen positioning

I have a 2d top-down view tile map game, that generates random color tiles (water colors) as you move the character. I've been positioning elements on screen using the x/y coords (finding a way to ...
3
votes
1answer
110 views

Player getting caught on floor

My player is getting caught on something on the floor. My whole environment is just blocks. I have looked through (and tried to change) just about everything I can think of in my player update method. ...
31
votes
6answers
2k views

Hexagon collision detection for fast moving objects?

A object has a position and a speed vector. Usually only the position is used to check if two objects collide, this is problematic for very fast moving objects as it can happen that the object moves ...
1
vote
2answers
575 views

Converting hexagon grid coordinate system

As I have been building on a RTS game based on hexagon grid built in javascript. I stumbled across a problem regarding the coordinate system. Have been trying to implement a A-star system to find ...
-4
votes
2answers
788 views

2D Graphics in CMD in C#

So, almost every programmer used Doom as inspiration for new Projects, right? So Doom and other classic MS-DOS game were played on something like Command Prompt. How do you display images in Command ...
3
votes
2answers
1k views

OpenGL ES 2.0: 2D game rendering, no performance gain with glDraw call batching

I just did a small benchmark. To my surprise batching sprites into a single draw call doesn't give any significant performance boost. Following are my results: Hardware: iPod touch 4 Extra info: ...
-1
votes
1answer
201 views

How would you program sprite movement in a 2-D ariel view rpg game? [duplicate]

I'm relatively new to programming and I have recently programmed an RPG game in java. Any tips on character movement with animations? I would like it to be similar to those of other rpg games such as ...
0
votes
1answer
392 views

How can I draw a small bitmap on a larger bitmap at a particular position? (Canvas / SurfaceView)

I'm building a game that requires additive blending of colours for certain bitmaps. Say I have 4 different types object, there are maybe ten of each type on the screen with each type having a ...
0
votes
1answer
59 views

SDL text or additional images not loading

I've got a basic side scroller that allows the user to run and jump around. I've used various tutorials to get this far, but I can't seem to get any text to render, no matter what method. I also can't ...
-2
votes
4answers
391 views

Making 2D Games [closed]

I am starting out on making my own games. I am very interested in making 2D side scrolling games, such as SNES/Mega Drive games and eventually I want to create my own Metroid/Cave Story inspired game. ...
4
votes
1answer
4k views

How should a programmer get started with creating 2D Sprites? [duplicate]

I am a programmer. Given a sprite sheet, I can code game as per the requirements. But I do not know how to create these sprites. I use Cocos2D. And I do not know where to begin. I have never done ...
5
votes
2answers
525 views

How to create a font from an image for a game?

I found a font in a free pack of sprite as an image: I'm wondering what would be the best way to use it in a game? Is there tools to create a font from this image? Do i have to code it myself? I ...
1
vote
2answers
390 views

XNA spritebatch.Draw: Which part gets colored by the color parameter?

Which part gets colored and how can I control it? I have a rounded block and my goal is to have the center filled with a certain color chosen by that parameter. Here's the picture: ...
0
votes
1answer
224 views

My logic in collision detection in diagonal code correct? [closed]

I made this code to detect collision from the diagonal(top left). I'm trying to find the problem on what I'm doing wrong. Is it necessary to have a diagonal collision for the wall? Player class: ...
-3
votes
2answers
2k views

2D Indie : From scratch, engine or maker? [closed]

I have been a game design/programming student for two years now, and made some little games using HTML5, most of them from scratch. I've come to a point where I am frustrated by the coding part : ...
4
votes
2answers
560 views

OpenGL: Filtering/antialising textures in a 2D game

I'm working on a 2D game using OpenGL 1.5 that uses rather large textures. I'm seeing aliasing effects and am wondering how to tackle those. I'm finding lots of material about antialiasing in 3D ...
-1
votes
1answer
506 views

How was traditional 2D collision detection/resolution being done? [closed]

Just out of pure curiosity, I'm wondering how classic 2D games of the 80s/90s (The Legend of Zelda, Super Mario, Warcraft, ...) approached collision detection/resolution. For some reason I can't ...
6
votes
2answers
644 views

How do I keep my character centred on screen?

I am making a game similar to Legend of Zelda: Link to the Past (top-down 2D action-adventure). I want the character to stay centred on the screen when he moves. Currently, whenever the player wants ...
4
votes
5answers
1k views

Implementing vector based movement in a 2d environment

Good evening. I apologize if the title is a bit vague, I really could not come up with anything better. I am currently reading a book called the nature of code and as a side project, I am working on ...
0
votes
0answers
249 views

How to render alpha channeled animated 2D sprites in OpenGL ES 2.0 [duplicate]

I searched, but I can't find specifically how to render animated 2D sprites with an alpha channel onto a 3D polygon, z=0, in OpenGL ES 2.0. This is just a basic 2D concept, but since I'm using, ...
4
votes
2answers
178 views

What's involved in resetting the graphics device?

I'm playing with XNA 4.0, VS2010. I've created a window (not maximized) and drawn some sprites. All is good until I resize the window, after which the sprites stop displaying or only partially ...
1
vote
1answer
541 views

2D Scrolling Background on XNA

How do I create a scrolling X and scrolling Y background without weird things happening like the player disappearing or not getting the offset correct? I have code at ...
3
votes
2answers
4k views

2D water shader similar to Limbo's effect

I'm wondering how I would go about creating a 2D water shader that is seen in this video http://www.youtube.com/watch?v=phChFfi4GOs The water effect that limbo uses is pretty awesome. I'm not so ...
0
votes
1answer
367 views

Issues with Sine Wave Generation and Rotation

I'm working on generating objects in sine wave that lets you specify parameters that are start x, end x, start y, and end y position. Below is the method that I used to generate the debris void ...
-1
votes
1answer
168 views

Breakout style ball-paddle bounce, error at corner

I am trying to make a breakout game where you have a paddle and a ball bounces around breaking bricks. The problem is that if the ball touches the corner of player it goes inside of player. I change ...
-1
votes
1answer
341 views

How can one make multiple movable images in OpenGL ES 2.0? [closed]

I was wondering, I've only seen examples of OpenGL ES 2.0 where people have used one or perhaps two images. I didn't see multiple images of where they each had independent movement. What if someone ...
2
votes
1answer
342 views

Issues upscaling pixel art with SampleState.PointClamp

I'm developing a 2D game, and I'm striving to create a nice blocky low-res appearance for the game, yet allow it to be played at variable resolutions. So, I've researched resolution independency and ...
1
vote
2answers
86 views

Mapping of positions on images in different frames

I am looking for a possibility to map different positions on a 2D Image which has different frames. Let's say I have an image, consisting of three frames, which shows a spaceship. The first frame ...