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.
0
votes
1answer
25 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 ...
3
votes
1answer
40 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 ...
102
votes
6answers
15k views
How was collision detection handled in The Legend of Zelda: A Link to the Past?
I would like to know how the collision detection was done in The Legend of Zelda: A Link To The Past.
The game is 16x16 tile based, so how did they do the tiles where only a quarter or half of the ...
-1
votes
1answer
188 views
Problem with enum as game state
In the current game I'm building, I'm having trouble moving from one game state to another. I'm using enum to control my states. As of now, this is my enum:
public static enum State
{
M_MENU, ...
3
votes
1answer
523 views
Procedurally generated 2d terrain for side scroller on Sega Genesis hardware?
I'm working on the Sega Genesis that has a 8mhz Motorola 68000 CPU.
Any ideas on how to generate fast and decent 2d tile terrain for a side scroller in real time? The game would generate new columns ...
3
votes
1answer
72 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. ...
-1
votes
0answers
21 views
Modeling objects coming down from a networked pipe on the client?
I've got an entity base class that contains information about a particular object that both the server and client know about, they're in a shared DLL. It's just a basic outline of entity information ...
-1
votes
0answers
78 views
What's the idea on the base of rendering camera on 2D platformers games? [closed]
I'm programming a 2D platformer game, and I am wondering about how the right to left scrolling of the camera is done in a game like this.
There is a background that need to be updated. There are also ...
0
votes
1answer
42 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 ...
7
votes
1answer
296 views
Implementing water effects (splashes) into XNA 4.0 game
I am creating a 2D XNA game and came across a tutorial on adding water effects (splashes) to an XNA game but after implementing it into my game I can't get it to scale down. Currently it takes up the ...
0
votes
2answers
73 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 ...
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 ...
-4
votes
2answers
80 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 ...
2
votes
1answer
135 views
2D Software Lighting Issues in Java
I'm creating a 2D top-down tiled game in pure Java and by now I'm trying to implement a way to do lighting.
First, some details on how I render: there is a screen class which handles all the ...
1
vote
2answers
80 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: ...
0
votes
1answer
157 views
Collision with Two Angled Platforms
I've encountered a problem in my attempt to implement Collision Handling for a game I'm creating, involving a collision with two angled platforms.
I'm using GJK-EPA for detecting/handling collisions ...
11
votes
1answer
1k views
Draw real time fog of war in 2d game
I have game situation as shown in picture:
Red dot: player
Brown dot: obstacle ( rock, tree, etc)
Grey: non visible area ( under fog of war)
My question is: how can I draw that kind of shape, ...
-2
votes
0answers
62 views
How to Fix Choppy Movement [closed]
I've just started game programming yesterday, reading things here and there on the internet, and I've been testing the java 2D API.
The code below does basically what I want it to (move the red ...
3
votes
2answers
260 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 ...
10
votes
1answer
757 views
Fog Of War - XNA
I'm creating my own top down 2D RTS game for personal educational purposes. Currently I really just copying Starcraft's design/ideas. I've decided I should probably implement Fog Of War too.
Let me ...
-1
votes
1answer
75 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 ...
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 ...
-2
votes
4answers
163 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.
...
0
votes
1answer
30 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 ...
6
votes
2answers
1k views
How do I rotate a structure of hexagonal tiles on a hexagonal grid?
My 2D isometric game uses a hexagonal grid map. In reference to the image below, how do I rotate the light blue hexagon structures by 60 degrees around the pink hexagons?
EDIT:
Main hex is (0,0). ...
5
votes
2answers
134 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 ...
2
votes
1answer
160 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 ...
1
vote
2answers
67 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:
...
2
votes
1answer
196 views
Parallax background positions when jumping
I am currently building my first Mobile game. The concept is pretty simple, it's a sideways scroller.
I have implemented 5 layers to act as parallax scrolling, these are working quite well for ...
-1
votes
1answer
90 views
How do I animate images with OpenGL? [closed]
I've been thinking about using set of PNG images (representing frames) and continuously change between them to look like an animation.
Is there a simpler/better way? (maybe using GIF?)
-2
votes
1answer
78 views
Slick game adding enemies towards the player [closed]
I'm beginner in java games, and this is my first time using Slick!
I followed the thenewboston tutorials to code my game.
My game is about a princess lost in a maze, on her way she finds bugs coming ...
-1
votes
0answers
113 views
About C++ Game/Engine Development books [closed]
I would like to ask a question about C++ game/engine programming books.
I have C++, Java, C# and various other languages OOP fundamentals, so programming logic is not foreign to me.
I'm planning to ...
-2
votes
0answers
26 views
Android Divide height evenly into tiles
I am writing a simple Sudoku app. I am overwriting onDraw to create the main grid of the sudoku game. The layout basically is :
Parent/Main Activity -> Contains 2 child views
-> SudokuBoard view - ...
0
votes
1answer
82 views
Incorrect colour blending when using a pixel shader with XNA
I'm using XNA 4.0 to create a 2D game and while implementing a layer tinting pixel shader I noticed that when the texture's alpha value is anything between 1 or 0 the end result is different than ...
-1
votes
0answers
41 views
SDL: No sprite movement [closed]
I've got my sprite animation but now I'm lacking any actual movement on the screen. Sorry about pasting around 200 lines of code but it's all relevant in the case (at least I think it is!). I think ...
7
votes
3answers
3k views
How much is java used in 2d/3d indie games? (before/after Minecraft) [closed]
I wonder for my own use and curiosity, how popular is Java in indie game development ,
in 2d and 3d? Are there any good open/closed source games done in java?
5
votes
1answer
1k views
Fast, accurate 2d collision
I'm working on a 2d topdown shooter, and now need to go beyond my basic rectangle bounding box collision system.
I have large levels with many different sprites, all of which are different shapes and ...
5
votes
2answers
276 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 ...
0
votes
1answer
79 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
210 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 : ...
3
votes
0answers
83 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
185 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 ...
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
votes
0answers
55 views
XNA/HLSL cone shape 2D light
I'm new to HLSL and I'm trying to create a simple light for my 2D game. I made a point light and it looks great. However now I'm trying to create a cone shape light but I just don't know how. can ...
33
votes
8answers
12k views
How to learn 2d animation?
Where can I learn how to do simple 2d animation well? Or is it really just literally drawing every single frame of something in photoshop? Is there tips or tricks? Tutorials to help get started?
...
4
votes
5answers
190 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
58 views
How to render alpha channeled animated 2D sprites in OpenGL ES 2.0
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, ...
2
votes
2answers
66 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
252 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 ...
-1
votes
1answer
71 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 ...
