A simple term for "translation", the change of position of an entity typically on the route of going from point A to point B.

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1answer
834 views

openGL ES - change the render mode from RENDERMODE_WHEN_DIRTY to RENDERMODE_CONTINUOUSLY on touch [closed]

i want to change the rendermode from RENDERMODE_WHEN_DIRTY to RENDERMODE_CONTINUOUSLY when i touch the screen. WHAT i Need : Initially the object should be stationary. after touching the screen, it ...
1
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2answers
501 views

Circular movement - eliminating speed ups near Y = 0

I have a basic algorithm to rotate an enemy around a 200 unit radius circle with center 0. This is how I'm achieving that: if (position.Y <= 0 && position.X > -200) { position.X -= ...
8
votes
5answers
2k views

returning correct multiTouch id

I've spent countless hours on reading tutorials and looking at every question related to multiTouch from here and Stackoverflow. But I just cannot figure out how to do this correctly. I use a loop to ...
6
votes
3answers
2k views

How do I make an entity move in a direction?

I have an Entity instance which is updated every game tick. Let's just assume that entity moves forward constantly. I'd like to be able to give the entity's angle to a function that makes it move in ...
3
votes
1answer
236 views

Achieving more fluent movement

I'm working on my first OpenGL 2D game and I've just locked the framerate of my game. However, the way objects move is far from satisfying: they tend to lag, which is shown in this video. I've thought ...
1
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1answer
523 views

default xna 4.0 gametime don´t works well for 2D physics

I am developing a game using Visual Studio 2010 and XNA 4.0, after advancing to some extent with the project (a platform based 2d platformer msdn starter kit) I got to test it on different computers ...
0
votes
1answer
304 views

Control convention for circular movement?

I'm currently doing a kind of training project in Unity (still a beginner). It's supposed to be somewhat like Breakout, but instead of just going left and right I want the paddle to circle around the ...
1
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1answer
2k views

Acceleration Based Player Movement

Ok, so I am making a first person shooter game and I am currently working on movement that looks and feels good. I want to incorporate acceleration based movement for the player so that he has to ...
4
votes
1answer
559 views

Collision Detection with SAT: False Collision for Diagonal Movement Towards Vertical Tile-Walls?

I'm developing my first tile-based 2D-game with Javascript. To learn the basics, I decided to write my own "game engine". I have successfully implemented collision detection using the separating axis ...
1
vote
2answers
246 views

Matrix camera, movement concept

Someone told me that the movement concept in my 2D game is bad. When left or right arrow is pressed I'm scrolling the background which makes you feel that player avatar is moving (the avatar's ...
4
votes
1answer
345 views

Limit rotation heading by cone/angle

What is a fast way of limiting the heading vector to a certain angle so that it turns in greater distance relative to the limit. A smaller cone/angle should make the object take a far bigger curve to ...
13
votes
3answers
459 views

Technique for objects following each other in complete movement?

I'm wondering how objects follow each other where they move over the previous position of the object in front of them. When the leading object stops, all that are following should stop at their ...
0
votes
1answer
467 views

android basic Movement for array-objects

I was adviced to start a seperate question for this so here I go. Been stuck so long with this do if you can help, please do. Lets get to it! Im trying to set the speed for my bullets, but since Im ...
1
vote
0answers
62 views

obb vs obb and resolve/response for 2d space game [duplicate]

Possible Duplicate: OBB vs OBB Collision Detection How can i detect if an rotated obb intersects another rotated obb and resolve it so both obb objects dont go further into each other. I ...
4
votes
2answers
399 views

What are the properties of “position, velocity, acceleration, rotation” collectively named?

They say naming things is one of the hardest problems in computer programming. They were right. Given the pseudocode below, what is a more appropriate name for this collection of properties? ...
2
votes
1answer
1k views

How can I accomplish Pokemon-style movement over tiles in java?

I'm talking about where if you press a directional key once you walk over to the adjacent tile and can't do any other actions during the walk. I can get my character to move one tile width, but my ...
3
votes
3answers
2k views

Handling movement in an Entity Component System

I'm working on a 2d RPG game in C# using an Entity-Component-System architecture, and I'm currently working on movement. Right now, I'm wondering how to organise the code so it looks a bit more.. ...
8
votes
1answer
416 views

Is there anything equivalent to Portal 2's linked_portal_door in any other engines?

I need the functionality of the linked_portal_door that's in Portal 2. I've searched a little in UDK and mostly got people trying to duplicate the portal gun. Does anyone know if UDK, CryEngine, ...
3
votes
6answers
2k views

How to implement object velocity as a vector

I'm working on a Breakout game, and want to change the ball's movement code from how I currently do it, to something based on vectors (as I feel learning and implementing movement based on vectors ...
1
vote
3answers
348 views

Shaking objects near correct position (with video)

All right, so I'm testing two box objects. One is standing fixed in a position and another at the beginning of the program goes to the first one. And at the end the latter should stand completely over ...
1
vote
1answer
202 views

How would a sprite spawn more sprites under themself every second?

I am making a snake game and am having trouble to make the snake go longer, at the moment when I run the program, I just have the snake head eating apples. But I want the snake head(30x30) to spawn ...
0
votes
3answers
2k views

How does changing weapons and character animation in 2d games work?

I know how I can make my character move by changing animation-frames. What if I want to use a weapon database? I want the character to fight with a bow and sometimes with an axe (different moves). Do ...
-1
votes
1answer
584 views

Hover Craft Algorithm

I have a hover craft and I would like to implement it but I don't know what the algorithm or equation of how the physics work is. The variables I think would be the falling speed, the aircraft ...
0
votes
1answer
409 views

Joystick example problem for android 2D

I've searched all over the web for an answer to this, and there are simular topics but nothing works for me, and I have no Idea why. I just want to move my sprite using a joystick, since I'm useless ...
3
votes
1answer
341 views

Space Invaders-type game: Keeping the enemies aligned with each other as they turn around?

OK, so here's the lowdown of the problem I'm trying to solve. I'm developing a game in PyGame that's a cross between Space Invaders and Columns. I'm trying to make the motion of the enemies similar ...
2
votes
3answers
606 views

Movement in RPG

I want to make an RPG game in which I move tile by tile. So when I hit up, the tile row that I am on decreases by one for example. Also, it's supposed to be a slow movement so that I can see the ...
1
vote
1answer
549 views

What algorithms can I use for bullet movement toward the enemy?

I'm developing 2D strategy game. There are weapons that shoot at enemies. From what I've read in this, this, this and this post I think that I need linear algebra, but I don't really understand what ...
0
votes
2answers
89 views

Crash when trying to detect touch [closed]

I've got a character in a 2D game using surfaceView that I want to be able to move using a button (eventually a joystick), but my game crashes as soon as I try to move my sprite. This is my ...
3
votes
1answer
1k views

What is a normalized Vector?

Can someone explain the following code? I need to learn what each part means so I can turn it into enemy movement in a space shoot-em-up Vec2d playerPos; Vec2d direction; // always normalized float ...
2
votes
2answers
345 views

How to prioritize related game entity components?

I want to make a game where you have to run over a bunch of zombies with your car. When moving around, the zombies have a few things to take into consideration: When there's no player around they ...
2
votes
1answer
678 views

Frame independent acceleration

To make my game fps independent I move entities with pos += speed * time where time is the delta time since last frame. That works perfectly well with speed but how do you do that with ...
0
votes
1answer
944 views

Synchronizing Movement in an MMO

I'm trying to decide how to implement player movement in an MMORPG. Player positions must be synchronized in a way that meets the following requirements: Low lag Difficult to hack or cheat ...
1
vote
1answer
228 views

Stack based state design for isometric character movement, am I doing it right?

I have been reading around about stack-based FSM, and I found it to be perfect for my game. However, when a character moves, it consequently have to face in some direction (and animation of each ...
1
vote
0answers
96 views

Updating object position

An object - a player or npc or whatever - has a position, direction and speed and such. Before drawing each frame, we want to compute the current position of each object. How do you do this? If you ...
0
votes
2answers
1k views

3D: First Person Movement

I've searched and searched for a solution today but haven't found one. I have a Camera with Vector3 and also the camera has an angle. If I use this: hero.position.x += speedX; hero.position.z += ...
1
vote
3answers
1k views

XNA create differences in enemies

I created an enemy class for my game. It works well, except for one dilemma. When I spawn more than one enemy, eventually they begin to "overlap" and look like one enemy. I was wondering if anyone had ...
1
vote
1answer
1k views

As3 Character movement in diffrent directions with labels?

I hope you can help me with the following problem: I made a character in Illustrator. The player sees the character from above. When you press the left arrow key character.gotoAndStop('left'); the ...
1
vote
4answers
2k views

Rotating a model AND translating it forward in XNA

I have this enemy class, and I want it to 1) Spawn at a certain place Vector3 pos 2) Rotate to face my player position 3) Move forward As this code is now, it will appear at it's specified place: ...
0
votes
1answer
249 views

Player sprite moving slower on iPhone 4

I just finished getting movement/jump animation for a player sprite in Xcode using Cocos2D. The basic movement algorithm is a timer that updates every 0.01 sec, changing the sprite position to ...
5
votes
3answers
545 views

Random monsters move in-sync instead of individually

I am making a game in which monsters spawn randomly and begin to move around randomly. I am fairly new at programming but not at game development. Through using a few tutorials I was able to make 1 ...
0
votes
2answers
514 views

How do I move a sprite around using tile based movement in Java?

So, I'm new to Java and I want to get a sprite to move around the screen, like a tile-based movement. I really would like some help and some resources or tutorials could work. I've done a little C#, ...
5
votes
2answers
2k views

I am looking to create realistic car movement using vectors

I have goggled how to do this and found this http://www.helixsoft.nl/articles/circle/sincos.htm I have had a go at it but most of the functions that were showed didn't work I just got errors because ...
0
votes
1answer
230 views

I am looking to make a spaceship tilt as it corners but I cant get it to return

I am using the TL game engine I am not allowed to use a physics engine but I need to make the spaceship lean as it corners, I can make it lean but cannot make it return to its starting position. I ...
2
votes
1answer
212 views

Non-random enemy movement implementation

I would like to implement enemy movement on a X-Y grid. Would it be a good idea to have a predefined table with an initial X-Y position and a predefined "surveillance path"? Each enemy will follow its ...
3
votes
1answer
626 views

XNA 2D Board game - trouble with the cursor

I just have started making a simple 2D board game using XNA, but I got stuck at the movement of the cursor. This is my problem: I have a 10x10 table on with I should use a cursor to navigate. I ...
2
votes
0answers
192 views

What is causing this behavior with the movement of Pong Ball in 2D? [closed]

//edit after running it through the debugger it turned out i had the display function set to x,x...TIL how to use a debugger I've been trying to teach myself C++ SDL with the lazyfoo tutorial and ...
5
votes
2answers
1k views

Is it safe to set FPS rate to a constant?

I learned from game class that in update function, every movements must be time dependent for the sake of linearity in movement. We made a simple game. Every move like going left, right or jump is ...
6
votes
2answers
5k views

How do I make my character slide down high-angled slopes?

I am currently working on my character's movement in Unity3D. I managed to make him move relatively to the mouse cursor. I set a slope limit of 45°, which does not allow the character to walk up the ...
0
votes
1answer
131 views

trouble in making a game questions?

all i've a little trouble understanding some concepts while making game please give your suggestions on my questions. I have a animated sprite image this i want to move this image according to given ...
2
votes
1answer
880 views

2D bullet movement speed problem [duplicate]

Possible Duplicate: Moving from A(x,y) to B(x1,y1) with constant speed? My problem is that I can't get my bullet movement right. The current update code I have for it is: speedX = deltaX; ...