Tagged Questions

1
vote
1answer
58 views

Create sprite and place in pre-defined places using mouse

So, I have a table. I want to be able to click on a button that allows a mode where I place a sprite on the table, on places that are predefined. How do I do that? I was thinking I could constantly ...
0
votes
0answers
52 views

Flash CS6 Spritesheets and XNA

So new with Adobe Flash CS6 comes the new Feature to export Movie Clips as a Spritesheet which seems very nice! I have a few questions to CS6: http://imgur.com/enllkyL Its nifty but it lost its "up ...
2
votes
1answer
88 views

Get average tile color

In my 2D game I have TileSet class that loads the texture and creates Rectangle[] array which stores each tile coordinates. Pretty basic stuff. Now I'd like to also calculate and store the average ...
0
votes
2answers
124 views

How to scale a sprite with its center as origin?

I'm trying to zoom-in a sprite gradually from 0% to 100% (a sprite called SelectionBox), so it zooms from the middle of the sprite, not from the upper-left corner. I'm almost there, but I'm having ...
0
votes
2answers
94 views

Returning The Position Of A Sprite Drawn & Updated By A List [closed]

My problem is this, when iceBoy hits any of the newGrounds in the ground.groundAmmount list, it will return the specific position of this newGround so that i can set iceBoy's position based on the ...
-1
votes
2answers
120 views

Why does my sprite animation sometimes runs faster? [closed]

I don't know why each time I call the Update_Animation function, my sprite animation runs faster. Is it caused by gameTime? How to fix it? Here's the relevant code: class Character { // ...
0
votes
1answer
138 views

xna: Methods for having sprite characters in 3d game?

Methods for having sprite characters in 3d game? I am making a game much like Doom. The world is 3d but objects and characters are 2d sprites. I am not asking about billboarding objects. I am asking ...
-6
votes
1answer
321 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 ...
2
votes
1answer
236 views

High volume sprite management in entity component system

I'm working on an entity-component-system based 2.5d game. That is, entities are groups of components that are processed by systems. I am having a hard time seeing how a sprite rendering system, that ...
3
votes
1answer
224 views

Improving SpriteBatch performance for tiles

I realize this is a variation on what has got to be a common question, but after reading several (good answers) I'm no closer to a solution here. So here's my situation: I'm making a 2D game which ...
2
votes
2answers
150 views

Loading Texture2D is extremly slow on XBOX360

I have ~100 sprites for each level im my XNA game. On windows it takes ~2 seconds to load them all. Unfortunately on XBOX360 it takes ~30-60 seconds. Am i doing something wrong? Essentially the ...
2
votes
1answer
415 views

How do I make a jumping dolphin rotate realistically?

I want to program a dolphin that jumps and rotates like a real dolphin. Jumping is not the problem, but I don't know how to make the rotation. At the moment, my dolphin rotates a little weird. But I ...
1
vote
1answer
107 views

If statement causing xna sprites to draw frame by frame

I’m a bit new to XNA but I wanted to write a simple program that would fire a cannon ball from a cannon at a 45 degree angle. It works fine outside of my keyboard i/o if statement, but when I ...
7
votes
1answer
348 views

Spritebatch drawing sprite with jagged borders

Alright, I've been on the making of a sprite class and a sprite sheet manager, but have come across this problem. Pretty much, the project is acting like so; for example: Let's take this .png ...
-2
votes
2answers
1k views

Where can I find resources for RPG Character Sprites? [closed]

I'm developing a turn-based 2D RPG game. Everything's going fine except the lack of characters' sprites such as moving, attacking animation, etc.... By characters I mean both human-like and ...
0
votes
2answers
787 views

How can I draw a simple 2D line in XNA without using 3D primitives and shders

I would like to be able to draw arbitary lines in my sprite based 2D XNA game. How can I draw a simple line on screen in XNA without dealing with vertex arrays or shaders.
7
votes
1answer
867 views

Xbox thumbstick used to rotate sprite, basic formula makes it “stick” or feel “sticky” at 90 degree intervals! How do you get smooth rotation?

I am using a very basic formula to calculate what angle my sprite (spaceship for example) should be facing based on the Xbox controller thumbstick i.e. you use the thumbstick to rotate the ship. In ...
4
votes
2answers
439 views

How to decompose sprite sheet

I have a lot of spritesheets that are poorly formatted that I want to decompose, or split out into many small images, one for each sprite. If I can do that, I can use my custom texture packer tool to ...
2
votes
1answer
168 views

XNA Framework sprite vectors and also scaling

I'm working on making my first Pong game with XNA Framework 4.0. Right now i've put 2 pong paddles and a ball (they have separate classes). In the "Paddle" class i've made a function that returns a ...
1
vote
1answer
1k views

XNA 2D Collision with specific tiles

I am new to game programming and to these sites for help. I am making a 2D game but I can't seem to get the collision between my character and certain tiles. I have a map filled with grass tiles and ...
1
vote
1answer
574 views

Positioning a sprite in XNA: Use ClientBounds or BackBuffer?

I'm reading a book called "Learning XNA 4.0" written by Aaron Reed. Throughout most of the chapters, whenever he calculates the position of a sprite to use in his call to SpriteBatch.Draw, he uses ...
-4
votes
1answer
705 views

2D top down game - XNA or Unity? [closed]

Hey I want to develop a top down 2D game, probably with Sprites (although 3D models with a fixed camera is an option too). I know it's not a very specific question - but generally speaking which is ...
3
votes
1answer
1k views

Spritesheet per pixel collision XNA

So basically i'm using this: public bool IntersectPixels(Rectangle rectangleA, Color[] dataA,Rectangle rectangleB, Color[] dataB) { int top = Math.Max(rectangleA.Top, rectangleB.Top); ...
1
vote
0answers
659 views

Orthographic Camera Zooming

In XNA I am using a spritebatch to render a board. I have created a camera class which can provide me a view and projection matrix. Currently I am supplying the view matrix to my sprite batch when I ...
1
vote
0answers
387 views

Sprite visual effect in XNA?

Suppose I have a character sprite and I want to apply some animating effect that overlay its color, how would I do it? What I desire is something along this line: (From final fantasy tactics) It is ...
2
votes
2answers
558 views

How do I apply pixel shader to specific sprite in XNA 4.0 in a spritesort FrontToBack?

I have a set of sprite drawn in FrontToBack sortmode. In XNA 4.0, the effect must be as an input argument of Begin() function of SpriteBatch. However, If I reinvoke the function, then the sprite ...
0
votes
1answer
299 views

XNA: weird effect by matrixTransform of spriteBatch on isometric tile

I wrote a Camera class that contains Matrix (for zooming and moving around). When I zoomed it with any zoom scale other than 1, some isometric grids becomes visible on each of my isometric tile. ...
1
vote
1answer
313 views

XNA - Drawing zoomed 2D sprites

I have a tile based game. Each tile texture is loaded and then I draw each one next to the other, forming a continuous background. I actually followed this tutorial for the xml files. ...
5
votes
2answers
541 views

Alternatives to multiple sprite batches for achieving 2D particle system depth

In my 2D XNA game, I render all my sprites with a single sprite batch using SpriteSortMode.BackToFront and BlendState.AlphaBlend. I'm adding a particle system based on the App Hub particles sample. ...
1
vote
2answers
2k views

Tutorial or Example of creating custom sprite tool/map editor for XNA?

I want to create various sprite tool and map editor using XNA. Now, the problem is I do not know how would I implement the window forms and components (such as button, check box, sprite list, etc.) ...
-4
votes
1answer
313 views

Make Sprite Jump Upon a Platform

I have been struggling to make a game like Doodle Jump where the sprite jumps on a platform. So how do you make a sprite jump upon platforms in XNA? Th platforms are represented by a list of positions ...
6
votes
2answers
934 views

Simple thruster like behaviour when rotating sprite

I'm prototyping some 2D game concepts with XNA and have added some basic keyboard inputs to control a triangle sprite. When I press key up the sprite accelerates in it's current facing direction, ...
1
vote
1answer
1k views

SpriteBatch Draw Using Floats with the Destination Rectangle

So I created a nice little isometric tile engine and I have it so that when you scroll with the mouse it changes a variable called scale. Scale is a float and gets passed through the ...
6
votes
3answers
1k views

Is there a simple way to group two or more sprites, so all of them will be dependent on each other?

I think that this question is very similar to this one, but I'm not sure if the answers are universal. So, my goal is: Place two sprites in fixed position, for example player and his eyes Make ...
2
votes
1answer
1k views

How to “swing” bounding box and update collision for sprite swinging a weapon?

I have a simple question about sprite swinging weapons. I am making an RPG and would like something other than stabby-swords, so why not swinging swords? I have a bounding rectangle for them, and the ...
3
votes
1answer
739 views

How to create a 2D region where sprites are automatically wrapped?

Edit Finally managed to get this to work, after two separate questions! Here's a video demonstration: http://www.youtube.com/watch?v=nZ7e0jegvs0 Will write an article about it later when I have a ...
3
votes
2answers
567 views

SpriteSheet Animation with XNA

Hi i'm working on my First 2D Game with XNA and I have a little problem. To give a running effect to my Sprite, I scroll through a SpriteSheet with this code(running right): if (AnimationDelay == 6) ...
0
votes
1answer
759 views

Make a basic running sprite effect

I'm building my very first game with XNA and i'm trying to get my sprite to run. Everything is working fine for the first sprite. E.g : if I go right(D) my sprite is looking right , if I go left(A) my ...
7
votes
3answers
982 views

How do I adjust the origin of rotation for a group of sprites?

I am currently grouping sprites together, then applying a rotation transformation on draw: private void UpdateMatrix(ref Vector2 origin, float radians) { Vector3 matrixorigin = new ...
1
vote
2answers
2k views

XNA: draw a sprite in 3d, is that possible?

since now I always used sprited to draw in 2D: spriteBatch.Draw(myTexture, rectangle, color); (I suppose the texture is binded internally to 2 triangles and then scaled.) Now, I'm porting my game ...
1
vote
2answers
2k views

XNA Windows Phone 7 Sprite movement

I'm working on a Windows phone game and I'm having difficulty with the sprite movement. What I want to do is make the sprite gradually move to the position that is touched on screen, when there is ...
2
votes
1answer
509 views

Rotating a group of sprites - How to calculate origin

I am rotating a group of sprites in XNA, which I developed with the help of the following example: http://msdn.microsoft.com/en-us/library/bb194912%28v=xnagamestudio.10%29.aspx It all works very ...
2
votes
2answers
556 views

XNA 4.0: Trouble Aligning an Animating Sprite (Texture Origin)

I'll try to explain this as best as I can. I'm trying to build a game where there exists a "Surfer" who is surfing down a rail. I have a sprite sheet for the surfer however I have been running into ...
0
votes
2answers
285 views

XNA 4.0: Animating a moving 2D sprite (not via user input)

I see a lot of tutorials explaining how to do 2D Sprite Animation with sprite sheets, based on the user's input (i.e. Move Left, Move Right ) etc.. etc.. I have already incorporated an ...
3
votes
3answers
383 views

How can I get a list of sprites which are being drawn in the current viewport using XNA?

Just starting out using XNA to draw 3D scenes and have a question about determining which objects are currently visible. If I load many thousands of sprites and shapes in a scene, then render the ...
1
vote
2answers
2k views

Create a body of an irregular 2D sprite in Farseer

I'm trying to create a body of a irregular 2D sprite Farseer 3.3.1. The regular shapes that BodyFactory provides are not that I want. Is there a way that one can create irregular objects? Could it be ...
4
votes
2answers
798 views

2D sprites in 3D space?

How can I draw a 2D sprite to look like it's at a particular placement in the 3D world? My goal is to use this as loose items in the world. Minecraft Example: ...
3
votes
1answer
840 views

Turning a sprite such that it rotates in the direction that's most efficient

I have a sprite that moves from waypoint to waypoint. It turns to face its velocity vector, but not instantly (there's a rotation speed). The problem I'm having is, from one direction to another, the ...
3
votes
2answers
2k views

How do I access variables in the Game1 class from another class in XNA?

I'm trying to write a SpriteManager class in XNA, but I need access to the Game variables. For example, the Game.Content property would be very helpful in loading textures, and ...
6
votes
2answers
866 views

How to do smooth sprite movement on WP7 XNA

What's the correct technique for getting smooth sprite translations with XNA? I've been developing the WP7 version of an app for a startup, so when we heard Angry Birds got ported today we wanted to ...

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