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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0answers
380 views

Weapon Class Organization [closed]

Im making a game and i want to organise my weapons, and im having a few doubts on not only the best architecture but also on how to use it properly: The First approach is to make a single Weapon ...
4
votes
2answers
364 views

Allowing a player to walk up and down slopes without resistance

I am trying to implement a platformer where both the player and the level are made up of arbitary polygons. One requirement is that the player can stand still on slopes, and walk up and down them ...
5
votes
1answer
2k views

How to use modern OpenGL for 2D games?

I've found a plethora of "modern" OpenGL (3.0+) tutorials for 3D, but I have found next to nothing when looking for information on how to use it for 2D game development. How can I get started using ...
1
vote
1answer
859 views

Rotate image around a specified origin

I'm trying to rotate my Turret.png (small Gunhead with a laser in front) towards the mouses location on the screen. I tried just using my method for rotating projectiles towards the next step on their ...
-1
votes
1answer
199 views

Game Engine Design for the LWJGL [closed]

I'm about to begin on the engine for the game I am making. However, I am quite uncertain how I should design it. I have heard lots about threaded games, component and asynchronous systems. I'm ...
12
votes
2answers
889 views

Should I be using spritesheets, because of or despite of my vast number of images?

I am developing a 2D game, and I have a lot of sprites. I used 3D animations and models to render into 2D, to give them that "Fallout" or "Diablo" look to them. It is also easier than drawing by hand, ...
3
votes
2answers
403 views

What is the range of RAM consumption for the typical 3D character in a video game?

What is the average number of KB in memory for a 3D character? Granted, this will obviously be biased based on what game we're talking about. However, I am less interested in actual size in KB, and ...
-1
votes
1answer
422 views

2D Contra style game - main character 360 degree gun aim

I'm about to make my first simple game. I'd like to know some of the ways to achieve a 360 degree gun aim in a 2D contra-like shooter. The thing is I want it to be 360 degrees, not just 8 direction ...
0
votes
1answer
124 views

Dynamic Shapes and dynamic animations

I saw this video: Video And now I am curious about the following: How can you achieve dynamic forms like they are shown in this video. What I mean is: Do you need to have some "base" models which can ...
9
votes
2answers
699 views

Entity/Component System and UI “Entities”

I'm still green to entity/component systems. I find that since I have useful components for drawing sprites (or spritesheets) and handling input (mouse/touch clicks), I naturally want to reuse these ...
0
votes
0answers
64 views

A way to generate random mazes? [duplicate]

What would be a fairly easy way to create random 2d mazes (which would essentially be paths) in a game? There would need to be a single entrance to the maze and then a single exit, with a lot of ...
-1
votes
1answer
243 views

How do other 2d tile-based web games record their overworld data?

I'm developing a 2d (top down) tile-based strategy game that is web based. It uses PHP and a MYSQL database along with jquery. It was originally a mostly text-based game. I have since developed what I ...
0
votes
2answers
196 views

Spritesheet vs single tiles

I am currently programming a 2d platformer and this is the first time I am coding a video game. Now I've downloaded the 'platformer art deluxe' package. In the tiles folder there are single tiles and ...
7
votes
2answers
340 views

How to implement a tractor beam?

I'm working on a game where the player can pick up objects using something like a tractor beam, and carry them around. Attracting the object towards the center of the beam is not difficult. But once ...
2
votes
2answers
531 views

OpenGL - drawElements 2D imposible z-sorting (textured)

I am creating a 2D program in OpenGL 3.2 Now to render what I do is have a VBO for each texture and add the elements of the objects that use that texture to this vbo. Now as you know the order you ...
0
votes
0answers
215 views

Finding a normal vector

I'm trying to replace my old integer based movement and collision system with a vector system, because its more precise and more flexible. I want to implement wall sliding, such that if a player hits ...
0
votes
2answers
512 views

2D shooting problem on Java using arrayList

I'm trying to shoot missiles according to a direction which a player is facing at. A missile goes towards right iff the player is facing towards right and shoot for instance. It is working but when ...
3
votes
1answer
338 views

OpenGL - Z- Buffer translucency

So lately I wanted to use the Z buffer in opengl to order my 2D sprites in my program. Now I didn;t relaize that if you use the Z buffer then you cant blend these sprites. And some of these sprites ...
2
votes
2answers
476 views

How to implement pathfinding in this situation

So I'm creating a game for android using the libgdx library. I render the map from a tmx file and in it all the water tiles have the property of blocked. My player(a sprite) moves to where I ...
1
vote
2answers
132 views

Twitchy sprite movement

I'm having an issue with sprite movement, and I'm not sure how to deal with it. When I set a destination for my player sprite (by clicking the screen), it sets the player moving in that direction. ...
-1
votes
1answer
475 views

Different Attack Systems in RPG [duplicate]

I'm making a 2d rpg game with libgdx and java, and I'm wondering how I would organize different attack systems - magic, melee, etc. (it's not a turn-based rpg). I have a PlayerClass enum, a Player2D ...
0
votes
2answers
96 views

How to cancel out simultaneous collisions in libGosu?

I am working on an Asteroids remake. When the player's bullets hit a large meteor, it should break apart into 2 smaller meteors. This works when the player is only firing one bullet, but when the ...
5
votes
1answer
272 views

Create extra bullets, offset according to angle of spaceship? [duplicate]

I am trying to create a weapons upgrade for my Spaceship, using libGosu and Chingu (in Ruby). This question is about how to deal with this issue specifically in Ruby, and more specifically in libGosu. ...
1
vote
1answer
119 views

Creating a card dangling affect using 2d sprites

I'm working on a 2d card game for iOS and using Cocos2d. When a player picks up a card and drags it I would like to make it appear that the card is lifted off the table and dangling just below their ...
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votes
2answers
595 views

Is there still a market for 2D games?

Do 2D games still sell well? Assume it has nice visuals and good game-play. I want to make games and want to start with 2D, but I am a bit hesitant, I have more than 8 years experience with 3D ...
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votes
2answers
193 views

How do I make a game that can transition from 2D to 3D?

My plan is to start from an really old game and build my way up to todays graphics and games. So for example start with Pong and then go to Space Invaders, then go to Zelda and Super Mario. But then I ...
6
votes
1answer
247 views

Collision Detection problems for vertically moving platforms

Background My game is a static screen (ie, no scrolling) 2d platformer and my CD routine is split into 2 - after vertical movements, (ie, gravity etc) I check for collisions, and if they are ...
0
votes
0answers
345 views

How do I use Opengl in conjunction with SDL?

I've been using SDL for a while in simple 2D games but have been limited as to what I can do graphics wise. I would like to start using Opengl. Does anyone know of any web tutorials for using Opengl ...
0
votes
2answers
242 views

List of 2d action games with level editors [closed]

Action game level design is hard. If you want to hone your skills at designing action game levels, the problem is that first of all you have to make a good game, with good controls, interesting ...
-1
votes
1answer
379 views

Java moving image to where it is facing

I am trying to make an Asteroids type game. I searched and tried everything to move an image along its angle (as radiant). Using my knowledge of trigonometry I made the following calculation: x += ...
3
votes
1answer
375 views

How to implement throw curve with virtual height in a 2D side-view game

I am working on a 2d side-view soccer game that looks like this image: But now I stuck on how to implement parabola pass ball. I have found many questions corresponding to my problem: Calculating ...
3
votes
1answer
252 views

what's the best way of panning in a 2D scene

Up to know I have used this functions to create a 2D scene (for showing images) and to pan on it ( in fact it's a customization of the class COpenGLControl here in codeguru) : void ...
-1
votes
1answer
183 views

2D engine that uses Flash Platform classes? [closed]

I want to develop a 2D game for Android, but, I want to use Flash Platform's framework APIs, ex: Sprite, Shape, Graphics, Bitmap .. etc as I have already wrote my game in AS3 .. Is there a 2D engine ...
3
votes
1answer
410 views

Java: AI to make a mob face the player working half-way correctly

While creating some basic AI for my "ghost" mob that is just up for testing at the moment, I thought of allowing it to face the player, depending on the player location. I get it to work correctly, ...
1
vote
1answer
103 views

How to render models using a personalized projection matrix?

I'm creating a game with a great sprite demand. Out team is considering automatizing the sprite generation using 3D models. The problem is we have a very particular ortographic projection: We have ...
2
votes
1answer
299 views

How can I clean up and smooth out procedurally generated terrain?

I am experimenting with procedural content generation, and starting with generating terrain from fractional brownian noise. The terrain produced looks fairly realistic, but has many artifacts and ...
2
votes
2answers
316 views

Split up a screen into regions

My task: I want to split up a screen into 3 regions for buffs-bar (with picked items), score-info and a game-map. It doesn't matter are regions intersect with each other or not. For example: I have ...
2
votes
1answer
427 views

One to one aiming in 2D platformer

Hello all I have been having an issue with a 2D platformer I'm working on in Unity. It has an aiming style similar to Shadow Complex where the aiming will rotate around the character in direction to ...
2
votes
0answers
138 views

cross resolution level design advice [closed]

I was looking for some beginner advice regarding level design across multiple resolutions. I believe the answer is likely "it depends", but any input from anyone with real experience is very ...
0
votes
1answer
239 views

Map handling - Indoors/Outdoors and loading large maps

I have two questions regarding the handling of maps. Question 1. My map will consist of outdoor enviroments as well as dungeons, houses etc. How would I go on about connecting the outdoors with the ...
1
vote
1answer
185 views

How could I figure out the shortest way to turn, and whats the angle? [duplicate]

I'm creating some robots for my tank game. I want them to find each other and shoot each other down, so I'm trying to implement a way for them to turn towards each other, and turn the shortest way. ...
3
votes
1answer
309 views

How do you construct a node map for pathfinding in a non-tiled 2D environment? [duplicate]

A* and Dijkstra's pathfinding algorithms work by navigating a node map. In a tile-based 2D environment, these nodes could easily be inferred to be the literal x,y positions of the map. For example, ...
2
votes
1answer
394 views

Rotate 2D Isometric World

Games like RollerCoaster Tycoon allow you to rotate the view at 90 degree intervals. I'm wondering how I could apply this to a game I'm making. I'm using MonoGame... but I'm wondering more if anyone ...
1
vote
3answers
580 views

How to deal with characters picking up and dropping objects in a 2D game [duplicate]

I'm quite new to game development, so would like to get a consensus on methods of doing this. My game features a 2D character that is able to pick up and drop objects, for example, a stick. My ...
7
votes
1answer
258 views

How do I get the areas enclosed by an arbitrary 2D shape?

In my game I want users to be able to draw arbitrary 2D shapes of any length around game objects. The shapes must be closed and drawn with a single stroke that does not overlap. For example: I ...
1
vote
2answers
197 views

Map logical coordinates to graphical for walking

I'm having a problem with mapping logical coordinates to graphical ones when my character is walking. I've been able to map them without the graphical walking in between, i.e it just "jumps" from one ...
0
votes
0answers
246 views

Android SurfaceView framerate issue

I am using SurfaceView to draw a lot of Bitmaps onto canvas. This causes really variable frame rates depending on how many objects are present. My code below: public class OriginalView extends ...
1
vote
0answers
124 views

Good Resolution for 2D Games [closed]

I am trying to figure out what is a good resolution for my 2D platform game. My images are 16x16 and my frame is 640x480 but I will allow it to be fullscreen also. I need a compatible resolution for ...
1
vote
2answers
216 views

Bullet entry Point around Player Object

I have a player rotating by the mouse and want the bullets line up with the player's gun. Right now they simply come from the point of the player and shoot in the direction of mouse. I just need the ...
0
votes
1answer
285 views

C# XNA4 2D Collision Detection

I am working on a 2D engine in Xna and am running in a bit of trouble with Collision implementation. What I want to do is have an interface ICollidable that I can add to GameObjects that are ...