Flat two-dimensional space. Positions represented with `x`, `y` coordinates.

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0
votes
2answers
226 views

How to display height information in tilemap

I want to create a hexagonal tilemap and show regions of different height in the same screen. What ways can you think about to indicate which height a tile is on. (current, lower, higher?) Several ...
0
votes
2answers
370 views

What java library/framework for a game with baldurs gate like grapics? [closed]

I really would like to create my own small rpg. It could probably look as simple like baldurs gate. So without fancy 3D stuff. As language I want to use java (or scala, I thinking about it - the good ...
0
votes
1answer
110 views

Put objects on a 2D maps using a matrix of distances

Is that possible to put objects in a 2D map using only a matrix of their relative distance ? An example would be putting cities on a map using the distances between them. There would be a minimum of ...
4
votes
3answers
4k views

Smooth Sprite Movement - Don't Add Velocity to Position?

I am trying to figure out if there is a way to move a sprite smoothly on the screen at different speeds without stuttering, but keeping the effect that it's moving smoothly; especially at faster ...
0
votes
1answer
572 views

How to scale a texture in OpenGL/LWJGL?

How would I take a texture and render it to a specific size? The texture I'm rendering has a 1:1 ratio so I want to be able to render the whole image like if the window is wide then put black outlines ...
0
votes
5answers
464 views

Limiting a player's movement to the screen's dimensions

I have a player, that I can control using WASD. And I don't want him to leave the screen. So I've tried the following: if (player1.getX()+5 < 974 && player1.getX()-5 > 0) { ...
4
votes
2answers
520 views

Are 2D art assets typically created at their intended in-game display size?

I'm wondering if game makers create their sprites smaller than their intended in-game size in order to be more efficient or whether doing that produces unacceptable quality.
-5
votes
1answer
1k views

How can I make sprites like diablo's for my soon-to-be isometric rpg? Like in all directions [closed]

(xna newcomer)I can use blender(3d modelling tool). I just can't make people, but if I have to, I'd learn it. How can I do that? I plan on making a lot of armor sets, equipments too. How would I go ...
1
vote
2answers
679 views

Tile-based game with DirectX - issues with transparency and StretchRect

In my current project I have a class which loads a map file and then it should load all associated tilesets (no transparent tiles - I used to work with magenta as a colorkey) and precreate a surface ...
1
vote
2answers
197 views

Collision detection for Monotouch [closed]

What I want to have for my Monotouch 2D projects: simple collision detection and collision polygons working with UIViews Sounds simple, isn't it? I've evaluated a lot of engines available on the ...
12
votes
1answer
768 views

How do I create multiple 2D spotlights?

I'm looking to create a 2D "spotlight" effect that allows a spotlight on multiple entities. I.e., as if several sprites were holding torches. For a single entity (one spotlight), I use a technique ...
2
votes
6answers
963 views

Is it good to sort objects list before every rendering?

I need to render a "tile" game, which are like these: or or I don't know how to render them in correct order. I intend to perform a sorting operator before every rendering (depending on their ...
-3
votes
1answer
662 views

2D XNA Shooting Game [closed]

im doing a XNA game for a school project but im having trouble with the bullets. I can´t find any way to draw them or "invoque" them went i want. It is a modified Space Invaders that im trying to do. ...
-2
votes
3answers
1k views

Why use textures that are Power of Two? [duplicate]

Possible Duplicate: Why are textures always square powers of two? What if they aren’t? I am using C# and XNA (also MonoGame for other platforms than Windows) to create a game in 2D. ...
3
votes
2answers
716 views

Collision detection for 2D RTS game in C++

I'm currently working on a real time strategy game in C++, and I need to implement a collision detection algorithm. I need to have a very efficient algorithm because this game will be running on ...
1
vote
1answer
2k views

Pygame 2D Scrolling Map

I have currently a pygame program that stores tiles in a 2d list like [[1,1,1] [1,1,1] [1,1,1]] where the 1 is a tile object. I have the character centered in the middle of the screen, and I am ...
4
votes
1answer
746 views

How to limit steering force at low velocities

Sorry if this is posted before, but I didn't find an answer for this. I've been banging my head on this for a day now and I seems to be stuck. I've implemented (see below) the 2D steering arrival ...
1
vote
1answer
229 views

Simulating flight dynamics in two dimensions

I have decided that in order to improve my math skills and game programming skills I am going to work on a two-dimensional space simulator. The view of the player or camera will be from inside the ...
2
votes
1answer
655 views

physics of 2D car racing game with heightmap

I want to develop a simple car racing game where the road is defined by a heightmap. It looks basically like this: The player can use throttle and brake to control the car. I'm wondering what the ...
5
votes
2answers
675 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
171 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
645 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
897 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
214 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 ...
4
votes
1answer
498 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 ...
1
vote
0answers
59 views

Creating transparent image with localGraphicsConfig not always working

I'm trying to use GraphicsConfiguration.createCompatibleImage to create transparent images. This creates an empty image which I'm filling with a mosaic pattern later on in the code. This seems to ...
9
votes
2answers
768 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
370 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
2k 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. ...
7
votes
2answers
880 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
140 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 ...
1
vote
0answers
491 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 ...
5
votes
1answer
2k 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 ...
2
votes
2answers
939 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 ...
5
votes
1answer
3k 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
124 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 ...
4
votes
2answers
2k 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
231 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
74 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
506 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
6answers
2k 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
112 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
1answer
164 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
496 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
341 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
177 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
126 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
2k 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 ...
4
votes
2answers
1k 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 ...
13
votes
5answers
1k 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 ...