A 2D rendering of an object in space.

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2
votes
1answer
12k views

How can I programatically generate sprite instances in Unity?

I want to create a block-based puzzle game that generates blocks as they are required, however I cannot seem to find any good information on how to do something like this using Unity's new sprite ...
0
votes
1answer
130 views

How can I support a background more complex than a flat color?

I'm a beginner at making 2D games. Up until now, I always created my games with a black background, or a fixed color. This is because my sprites always have a black (or a solid color) background, and ...
1
vote
1answer
145 views

How to prevent a sprite to move in an angle that will lead to collision

I have two sprites that can move in any angle. The sprites are rectangular. I created bounding boxes for both the sprites. These boxes rotate whenever the sprite rotates. They always surround the ...
2
votes
1answer
149 views

How do I rotate a bounding box together with a sprite?

I have a game object with a sprite that can rotate. It's a rectangle. I need its bounding box to rotate with it. How do I make sure that they can both rotate, but they're always both at the same ...
1
vote
2answers
246 views

Detecting collision of two sprites that can rotate [duplicate]

I have a problem with collision detection in a 2D Java game. Normally, what I would do is create a getBounds() method for an object that can collide with other objects. This method would return a new ...
1
vote
1answer
196 views

pygame - avoiding sprite 'jitters' on rotating the image

Is there a common trick for getting around sprites that are changing directions 'too quickly' and causing their sprite to display erratically? In this project, the player moves in 8 directions by ...
3
votes
1answer
355 views

Collision detection for sloping tiles

I've been looking into adding 'sloping' tiles into my platform game and my first attempt at collision detection with these tiles has produced some promising results (considering it's a first attempt), ...
1
vote
1answer
134 views

Telling my shader when to use which Texture

So I've just managed to get Texturing via GLSL shaders to work and i can pass a sampler2d textureHandler + my uv coordinates into my shader to specify the texture to be displayed on my Tiles. Now im ...
1
vote
1answer
165 views

UI in Canvas-Games [closed]

I am quite new to programming with <canvas/> and WebGL, but very familiar in HTML5. So far, I have made to render some entities on the <canvas/>. Next would be to add a simple HUD to it. ...
0
votes
1answer
158 views

Load all bitmaps at once or only when needed?

I am starting to get a pretty hefty amount of bitmaps in my 2d game for android. I load them all in 3 colors to save some memory but the thing is, I load all of them when "Start game" is pressed, even ...
0
votes
1answer
283 views

How should I determine the bounding rectangles for frames within a sprite sheet? [closed]

I have a spritesheet for a character. The spritesheet has several rows, and each row represents an animation. The elements within a row might vary in width. How can I load the different sections of ...
5
votes
1answer
1k views

How should I handle sprite creation for customizable 2D characters?

I'm want to create avatar animations (sprites) for a browser-based MMORPG. The player is able to customize the character, and the content changes often (new weapons, armors, and so on). How can I ...
2
votes
1answer
1k views

How to split a 2D sprite tile set into individual sprites?

I see a lot of sprite catalogs for games provided as single PNG image, like the one below. I'm interested if I have to manually create tiles from that, or if there's some program that can split it ...
0
votes
1answer
252 views

What size textures do I need for a 2D grid based game if my tiles are larger than textures I have?

I'm building a grid-based game for iPad, and for usability purposes I've selected my game grid to be built of 75x75 squares. However, so far I've seen that the majority of (free)texture catalogs I can ...
2
votes
4answers
832 views

How to set speed of circular motion

Edit 2 - clarification Just to clarify, the issue I have at the moment is how I specify a time (in seconds) for a complete revolution to occur. My delta is fixed and is 1/ticks per second (1/60). ...
2
votes
2answers
206 views

Replicating no. of sprites without letting the app to slow down and crash

Is it possible that if I'm making a a simple drag-n-drop game, does making a new sprite via constructor with texture as a parameter makes the game slower and depletes more memory until it crashes or ...
4
votes
4answers
10k views

Unity: Flip Sprite Direction

I'm toying around with the new Sprite class in Unity, and I'm trying to work out how to change the direction the sprite is facing ("flip" it). I'm sure I can most likely just scale it across the x ...
1
vote
3answers
239 views

Inconsistent sprite velocity?

I'm moving my sprites using the following formula: Code that I'm using (Only shows sprite's X position being calculated but Y position is also being done) spriteGridX = 240/480; //I start out with ...
2
votes
1answer
403 views

Is it possible to achieve a smooth sprite animation with a fixed 60 FPS using Java 2D?

I've seen a lot of different game loops, and before implementing anything complicated I decided to start with a capped 60 FPS. My run method looks like this in my game thread: /** * Fixed Frames Per ...
2
votes
1answer
364 views

How can I improve the performance of texture switching without resorting to atlasing?

I'd like to use texture images that are not a sprite sheet or other form of texture atlas, mainly because I'll be consistently adding and swapping textures while I figure out the direction my game ...
1
vote
2answers
272 views

How to draw a rotated pixel perfect line by hand?

If you have a pixel perfect line like 1:16 pixels, and you want to draw that same line rotated by a degree, for example 45°, what would be the correct way to do that by hand? I know it should have ...
12
votes
1answer
11k views

Can Unity 2D be used to make pixel-art games?

I'm looking at the new 2D features introduced in Unity 4.3, and I think I might be missing something. To me it looks like they are designed for high-res 2D games, where scaling the sprites is ok, but ...
0
votes
0answers
36 views

2D collision beetween a sprite and an array of sprites [duplicate]

I am creating a simple Android jumper (think Doodle Jump or Abduction) using libGDX so I can get started in game programming. My problem is that I need to figure out a way to check for collision ...
1
vote
1answer
543 views

Limiting the speed of a dragged sprite in Cocos2dx

I am trying to drag a row of sprites using ccTouchesMoved. By that I mean that there is a row of sprites (they are colored squares) lined up next to each other and if I grab one with a touch the rest ...
4
votes
1answer
2k views

OpenGL ES 2.0. Sprite Sheet Animation

I've found a bunch of tutorials on how to make this work on Open GL 1 & 1.1 but I can't find it for 2.0. I would work it out by loading the texture and use a matrix on the vertex shader to move ...
1
vote
1answer
432 views

2D fighting bounding boxes

I'm prototyping a 2D platformer/brawler game for uni and I'm having some trouble with creating collision/bounding boxes. This is most likely going to end up on a Vita so I do have some library ...
1
vote
1answer
276 views

Sprite rotation

I'm using OpenGL and people suggest using glRotate for sprite rotation, but I find that strange. My problem with it is that it rotates the whole matrix, which sort of screws up all my collision ...
0
votes
1answer
1k views

GLSL billboard move center of rotation

I have successfully set up a billboard shader that works, it can take in a quad and rotate it so it always points toward the screen. I am using this vertex-shader: void main(){ vec4 tmpPos = (MVP * ...
0
votes
1answer
105 views

How can I compute a velocity proportional to the difference between two hand positions?

I'm working on a project with the Kinect SDK and XNA 4. I need take the position of the hands and draw a sprite over it. I'm was doing it directly and because of that I get a "trembling hands" effect. ...
0
votes
1answer
131 views

Why does my goblin only choose a walk direction once? [closed]

I'm working on a simpe 2d canvas game that has a small goblin sprite who I want to get pathing around the screen. What I originally tried was a random roll that would choose a direction, the goblin ...
3
votes
2answers
3k views

How can i create sprite sheet from 3d model (3D studio max)

I built simple 3D model of a car, with simple animation in which it's wheels are turning. Now i want to create a sprite sheet, the only way i know how to do it, is to render manually 20 frames from ...
2
votes
1answer
611 views

Drawing Sprites at Correct Z-Index without A Sprite Map?

My game is in HTML5 canvas, but I assume this concept applies to any language. In the past I've used a multi-dimensional array to keep track of sprite positions. Here is a simplified example: [ [ ...
0
votes
1answer
88 views

Getting a sprite from multiple sprites for right material pattern

Not sure how accurate the question was but I'll put it this way. I'm developing a game where player will construct his/her own stuff, like bridge, building etc. using cocos2d-iphone and Box2D. First ...
4
votes
2answers
2k views

LibGDX stretching 2d graphics

I have a problem with stretching sprites in LibGDX. I have one png file for the sky in the game (1 x 1000px) and I want to render it 1000 x 1000px sprite.setSize(pixelWidth,pixelHeight); I want to ...
1
vote
1answer
183 views

How can I spawn a sprite based on a condition after the game starts?

How do I spawn a sprite anytime later in the game when the game starts? I'm using FlashDevelop with Flixel. I did try it in override public function create(): void. It works only in the beginning. I ...
0
votes
2answers
276 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 ...
1
vote
2answers
117 views

How to define axis of Sprites in a CCAnimation?

I'm struggling to find how to define a kind of axis in my frames, when my sprite punches it moves back. I want to define the head as a pivot for the other sprites with different sizes. How can I ...
-4
votes
2answers
97 views

Is it possible to render controls inside controls in XNA?

I want to know if there is an easy way to render sprites in XNA inside other sprites or something similar (I don't know if sprite is the best or unique way to draw in XNA). For example, I want to draw ...
2
votes
2answers
819 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
150 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
vote
2answers
206 views

Handling creation of enemy sprites in a level

I am trying to build an RPG tile-map based game. Currently I am going to set enemy sprites that will be repeating their motion in fixed path. Suppose that I have a level map, which has got width 3 ...
1
vote
0answers
211 views

Using fully cropped sprites with TexturePacker and Cocos2d

When using texturepacker, you can set your trim-mode to crop. This is nice, because when a sprite loads in cocos2d your bounding box will only be the visible area of your sprite - which is useful for ...
1
vote
1answer
145 views

Should I be using Reach or HiDef profile if I have large spritesheets?

I'm working on a platformer in monogame, that I want to use a large number of sprites for making up items and objects in the background. The main spritesheet I've created is 4095x3734, when I tried ...
1
vote
1answer
197 views

Efficient way to draw multiple separated quads

Let's assume I want to draw several separated (possibly textured) quads in Direct3D 9, each consisting of two triangles: How should I draw these for maximum performance, i.e. which of the following ...
1
vote
3answers
742 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 ...
2
votes
1answer
588 views

Windows 8 C# Compile spritefonts for MonoGame without XNA

Hello Stack Exchange community. Recently, I've been attempting to in some way generate sprite-fonts into XNB files for use with MonoGame. The issue is however, as you may be aware, XNA is very ...
0
votes
1answer
190 views

How do you align the edges of sprites?

If you have SpriteA and SpriteB. SpriteB is a child of SpriteA. Does anyone have a mechanism to come up with the left, right, top, side of a boundingbox() of SpriteA? What I'd like to do is align ...
0
votes
1answer
482 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 ...
1
vote
1answer
4k views

How to switch sprite animations in cocos2d-x?

I have a "GameCharacter" class where I have a sprite for my main character in the game, I loaded the frames and animations correctly. I can switch between animations with single touches or swiping ...
4
votes
2answers
432 views

Jittery Movement, Uncontrollably Rotating + Front of Sprite?

So I've been looking around to try and figure out how I make my sprite face my mouse. So far the sprite moves to where my mouse is by some vector math. Now I'd like it to rotate and face the mouse as ...