# Tagged Questions

A 2D rendering of an object in space.

1answer
242 views

### Letting the user draw a Polygon Body and Image

In my game, I want to provide the user with a drawing feature. By free hand drawing, the user creates a polygon shape. Then, in my game implementation, I have to create a body for the found vertices ...
2answers
683 views

### SDL2 sprite batching and texture atlases

I have been programming a 2D game in C++, using the SDL2 graphics API for rendering. My game concept currently features effects that could result in even tens of thousands of sprites being drawn ...
0answers
18 views

### Unity 2.5D Character Movement

I'm wondering if anyone can point me in the right direct as to how to take a 2D character/sprite in Unity and have said character turn corners in a 3D style. Solutions or resources welcome.
0answers
17 views

### How do I open/edit a *.xnb file in XNA Game Studio 4.0?

I've downloaded a *.xnb font sprite, but I don't know how to open/edit it. I installed XNA Frameword 4.0 in VS 2010. Thanks for your help!
1answer
301 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 ...
2answers
380 views

### how to re-use a sprite in cocos2d-x

some times it takes time to create the sprite structures in the scene, I might need to setup structures inside this sprite to meet requirement, thus I would hope to reuse such structures with the game ...
7answers
2k views

### What's the best way of transforming a 2D vector into the closest 8-way compass direction?

If you have a 2D vector expressed as x and y, what's a good way of transforming that into the closest compass direction? e.g. x:+1, y:+1 => NE x:0, y:+3 => N x:+10, y:-2 => E // ...
1answer
61 views

### DirectX9 Drawing Sprites out of place due to offset

This is my very first time into DirectX. Im trying to make a simple 2D game, just for learning the basics. And i've achieved that. The next step is to draw an animation using sprites. For that, i ...
1answer
425 views

### LibGdx sprite rotation vs Box2D physics rotation problem

LibGdx sprite rotation vs Box2D physics rotation problem Tearing my hair out on this one. I am an experienced software developer, but very new to LibGdx and Box2D development. I am writing a game ...
1answer
60 views

### Simple shader for sprite interface [closed]

I have been looking for any examples for a long time, I cant get anything to work (from the examples). I have tried using vertex/pixel shaders, effects files, but they never have any effect on the ...
1answer
409 views

### Unity3D - How to tessellate 2D sprites?

I use dynamic vertex lighting on 2D sprites. On larger sprites the lighting is uglier than on smaller ones. This is because every sprite is just a quad of two triangles. Not enough vertices there for ...
2answers
125 views

### Simultaneous Animation for a GameObject - Unity3D

Its my second week with Unity. I am doing a 2D game and I have a small GameObject which should change its sprite along with following a definite path defined in Animation Curves. I did both of them ...
1answer
654 views

### Create sprite renderer using custom material

I have done following thing. Create Material Attach sprite with texture type as Texture Add sprite renderer component to game object Assign material to it that I create in last steps There is no ...
1answer
71 views

### Interpolating rotated objects

I've finally got interpolation working to 'smooth' out movement, however it doesn't seem to work for objects that are rotating (around their own center) - when I try to do this, the objects in ...
0answers
16 views

### Set uniform per sprite using libGDX SpriteBatch

I am using a SpriteBatch to render large amounts of sprites very fast. Now I want to modify the sprites with shaders to tint them in a color. Problem 1: Altering an uniform by getting the shader and ...
3answers
160 views

### What is the easiest way to make an object follow the edge of a sprite?

I have a rounded rectangle sprite and another sprite that's just a circle. I want the center of the circle to follow the edge of the rounded rectangle. Is there any easy way to accomplish this task? ...
2answers
3k views

### Rendering shadow sprites in cocos2d-x

I am writing a 2D game with cocos2d-x. I want to put a "shadow" sprite on a background sprite using the equation: MAX(0, Cd * 1 - Cs * S) where Cd is the destination color (that is, a background ...
1answer
94 views

### Why are my sprite outlines partially rendering in the wrong place?

I've been trying to draw an outline around a sprite using the code from this answer. Details My sprite is called Ship2Sprite. This is how I create the rectangle: rectangle = New ...
2answers
92 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 ...
0answers
11 views

### Seperate game sprite

I want to create java game Jump Rope , something like this : http://www.juicycraft.com/HTML5/JumpRope/ do I need to draw two seperately sprites (one for character and one for rope ) or only one ...
2answers
88 views

### Implications of using a single ID3DXSprite object to render multiple images

I wanted to know if using a single Sprite object to render all 2D textures on screen is better than using one sprite for each 2D texture in performance. EDIT: Using single sprite refers to using a ...
1answer
44 views

### Compute billboard rotation

I'm trying to compute a matrix to have object always facing the camera. For the moment, my result look pretty good, the problem is that my original billboard scale isn't preserved (Every billboard ...
1answer
92 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 ...
1answer
112 views

### Cocos2d/Cocos2d-x Attaching an arrow (sprite) to another body sprite (person)

I am trying to set up a simple bow and arrow game. When the arrow hits the enemy body, the arrow's body is deleted and the arrow sprite continues to update, keeping the position correct in relation to ...
1answer
247 views

### How can I apply a “genie animation” to a CCSprite?

I am new to Cocos2D and following this tutorial. I want to animate a CCSprite with the genie effect that OS X uses for hiding windows to the dock and showing them again. Here's an example from an ...
1answer
101 views

### libgdx get rotated sprite coords points

I would like to get the position of each edge of a sprite when he has been rotated. I have no idea how to do it, I made a image to explain it. I would like to get the X and Y position of each Red ...
1answer
491 views

### set TouchEvent to every particle in SpriteParticleSystem in andEngine livewallpaper

All I have working on andEngine Live wallpaper and I have use SpriteParticleSystem. I want to add touch event to every Sprite of SpriteParticleSystem and remove that sprite from scene. I have use ...
1answer
100 views

### Changing a Sprite When Hit in GameMaker

I am making a simple little Galaga style game. I want the objects sprite to change whenever it is hit. For example if a laser hits an alien then the sprite takes 1 out of 4 damage to its health ...
3answers
559 views

### sprite group doesn't support indexing

I have a sprite group created with pygame.sprite.Group() (and add sprites to it with the add method) How would I retrieve the nth sprite in this group? Code like this does not work: mygroup = ...
2answers
278 views

### How can I locate the frames of a spritesheet PNG based on this PLIST data?

Someone asked me to reskin a certain game. Now he only sent me the whole sprite PNG and PLIST files of the sprites. He instructed me to rename each sprite with the same name corresponding to each ...
3answers
505 views

### How can I generate isometric sprite sheets from 3D animations?

I want to generate sprite-sheets for an isometric projection of various 3d assets purchased from the Unity3D asset store. I'd preferably also render the normal maps. I am a programmer, but new to 3D ...
2answers
98 views

### How do I get rid of this coloured border on my sprite?

I'm working on a 2D game in Unity. My triangle sprites display in-game with a line along one of the transparent sides: Larger view here. You might need to zoom somewhat. It's quite obvious on the ...
0answers
24 views

### Is there a way to make Unity 4.3 Sprite packer keep caching even after restart unity?

It's bother me a lot. It has to pack every time I open unity. It took sometimes until it finish. If I drag new image into project and do not specify any packing tag, it still repack. I know there's a ...
1answer
87 views

### Sprite draw-order in libgdx

From other frameworks I know methods for easy ordering sprites within a spritebatch (to determine if a sprite has to be drawn in front or behind another sprite). For example in MonoGame/XNA this is ...
1answer
128 views

### cost of texture change vs color change

How would I go about determining the difference in cost between changing the render color of an object every frame vice changing the texture (same sheet, just changing the source rectangle) every ...
0answers
40 views

### Monogame - How to make a character move automatically right when the game starts?

I am working on an infinite runner using Monogame and Visual Studio. I have a basic sprite that can move back and fourth. But I want to know how I can have objects, like platforms, moving ...
2answers
231 views

### Expandable 2d environment by spawning and controlling individual tiles

what is the best way to implement an environment that is "expandable" in every direction so that when the player moves in any direction a new row or column of tiles that can be manipulated ...
0answers
79 views

### cocos2d-x .. How to detect which sprites are underneath a touch event

I was wondering what the best solution is in the following scenario: Lots of sprites floating around on screen. A user can touch one sprite and drag to another sprite. Throughout this entire time, I ...
1answer
93 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. ...
1answer
63 views

### How to use sprite as font in Unity?

I've started working on my first game in Unity; It's very simple, there's a spinning block in the middle, and there are spinning blocks coming from all sides. When they hit the middle block, you lose ...
0answers
55 views

### Sprites on scrolling tmx map (LibGDX)

I have .tmx map loaded, and a camera to see it. The map is bigger than the camera viewport, so I need to move that viewport scrolling the camera. Now I want to draw a sprite on the map. To do that, at ...
2answers
180 views

### Simulating 3D height in 2D scene (also shadows)

I recently stumbled across this http://vimeo.com/99118680 video and was stunned by the beautiful painted art and colors. But mostly I couldn't believe how everything appeared to have three dimensions ...
1answer
345 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 ...
1answer
175 views

### How can I correctly line up differently sized animation frames with a character?

For educational purposes, I'm developing a 2d game without APIs or libraries. Currently I'm stuck with a sprite drawing problem. To store sprites for drawing (assuming I have the sprites I need all ...
1answer
178 views

### Why is anti aliasing not being applied to my 2D objects in Unity?

I am drawing 2D objects in Unity. Some of these objects are drawn using the standard sprite method that is built into Unity. Others are computed as distance functions in a shader. In both cases I ...
2answers
143 views

### Pathplanning A* Getting stuck in wall

I'm having a problem with my pathplanning. I can plan a path and make my character follow it, that's not a problem but then i plan a path around a wall it takes the shortest way as A* suggests, which ...
0answers
43 views

### Is there any benefit to using sprite sheets in Java with awt?

I am aware that this question addresses the issue for flash and this question addresses the issue vaguely for miscellaneous rendering engines like OpenGL. The way the latter asserts the superiority of ...
1answer
76 views

### Libgdx - Sprites disappearing [closed]

I'm facing a little problem and I have no idea to bypass it. I've made a dungeon generator and I'm able to spawn randomly mobs, the problem is that when they are not moving the game is fine, but at ...
0answers
42 views

### Transform texture coordinates when using shader

Assuming I define four vertices of a quad with texture coordinates that cover a whole texture or region of a texture, I can animate these coordinates by setting a transform using SetTransform( ...
0answers
30 views

### AndEngine: image partially disappear on finger move

I am new to andengine and I want to create an app like that: I have 2 images one on other now what I want is if I move my finger on upper image It should partially disappear only from the position ...