A simple term for "translation", the change of position of an entity typically on the route of going from point A to point B.
4
votes
2answers
1k views
Move sprite in the direction it is facing?
I'm using Java/Slick 2D. I'm trying to use the mouse to rotate the sprite and the arrow keys to move the sprite. I can get the sprite to rotate no problem, but I cannot get it to move in the direction ...
38
votes
5answers
2k views
Looking for a good technique for character movement in hack&slash game
I'm making hack&slash game and I want my characters move like for example in Torchlight, Diablo, etc.
Currently I generate set of nodes for all walkable areas of a floor. When I click somewhere ...
11
votes
4answers
3k views
Curved movement between two points
What is a good technique to enable an object to move between to points in a nice curved motion?
The end position could also be in motion, such as the trajectory of a homing missile.
4
votes
1answer
325 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 ...
8
votes
2answers
3k views
Enemy movement in straight line to player in chase game
I'm creating a game where the enemies spawn randomly on a map then move towards the player every frame at a random speed. The map has no obstacles so the enemies should always move in a straight line. ...
4
votes
3answers
1k views
Moving from A(x,y) to B(x1,y1) with constant speed?
I currently have something like:
float deltaX = point0.getX() - point1.getX();
float deltaY = point0.getY() - point1.getY();
And every 0.01 seconds I refresh my objects position like this:
...
14
votes
2answers
1k views
RTS Game Protocol
I've been thinking about a multi player RTS game. The part that I can't seem to get around is keeping unit movement synced. If I move unit A to spot XY, I have to communicate that back to server that ...
22
votes
6answers
2k views
Who does the AI calculations in an MMO?
I am building an MMO and want to add NPCs. The thing is I don't know the basic design. What does the calculations, the clients or the server? I would understand the server calculating events and ...
9
votes
2answers
331 views
How to limit click'n'drag movement to an area?
I apologize for the somewhat generic title. I'm really don't have much clue about how to accomplish what I'm trying to do, which is making it harder even to research a possible solution.
I'm trying ...
7
votes
2answers
193 views
Movement on a curved planet surface
I'm looking for a solution for moving a variety of objects over the uneven surface of my planet. The idea is that I will have a number of objects that follow the planetary landscape moving about in ...
0
votes
2answers
381 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 ...
5
votes
1answer
381 views
What is the best way to limit player movement?
I'm currently programming a 2d game where the player moves around on a rectangular playing field. The player has a direction and a velocity. What is the best way to limit the player's movement so ...
17
votes
4answers
3k views
Top Down RPG Movement w/ Correction?
I would hope that we have all played Zelda: A Link to the Past, please correct me if I'm wrong, but I want to emulate that kind of 2D, top-down character movement with a touch of correction. It has ...
13
votes
6answers
1k views
How to build a “traffic AI”?
A project I am working on right now features a lot of "traffic" in the sense of cars moving along roads, aircraft moving aroun an apron etc.
As of now the available paths are precalculated, so nodes ...
8
votes
2answers
2k views
Free movement in a tile-based isometric game
Is there a reasonable easy way to implement free movement in a tile-based isometric game? Meaning that the player wouldn't just instantly jump from one tile to another or not be "snapped" to the grid ...
16
votes
2answers
564 views
Eight or infinity sign trajectory
When I want to move object around point I do:
point.x *= cosf(timer.timeElapsed);
point.y *= sinf(timer.timeElapsed);
How to make point move on eight or infinity sign trajectory?
12
votes
3answers
387 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 ...
5
votes
2answers
2k views
Oscillating Sprite Movement in XNA
I'm working on a 2d game and am looking to make a sprite move horizontally across the screen in XNA while oscillating vertically (basically I want the movement to look like a sin wave). Currently for ...
8
votes
2answers
2k views
How do I tackle top down RPG movement?
I have a game that I am writing in Java. It is a top down RPG and I am trying to handle movement in the world. The world is largely procedural and I am having a difficult time tackling how to handle ...
8
votes
1answer
296 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, ...
6
votes
2answers
1k views
How to manage enemy movement and shoot in a shmup?
I'm wondering what is the best (or at least a good) way of managing enemies in a shoot-em-up.
Basically, what I'd do would be a class that manages displaying and updating positions of all the ...
3
votes
1answer
148 views
Moving the jBullet collision body to with the player object
I am trying to update the location of the rigid body for a player class, as my player moves around I would like the collision body to also move with the player object (currently represented as a ...
2
votes
3answers
559 views
How do I calculate how an object will move from one point to another?
Here's the problem: A player starts the game in the 0 coordinate (x=0,y=0).
When the user clicks on the screen, it returns the coordinates of the destination.
Now the player has to move from its ...
2
votes
1answer
442 views
Stopping on a slope in Box2d
I am creating a simple platformer using Box2d. I've implemented a variant of the technique described here.
To make the player character move more 'platformer-like' I want him to stop on (shallow) ...
2
votes
1answer
276 views
Move Sprite from A(x,y) to B(x1,y1);
I have a sprite with an UpdateHandler that can change it's position every 0.1 seconds.
My Question is , given the Sprites current position, how can I move it to another position(like from 10,10 to ...
0
votes
1answer
311 views
How can I determine which direction a 2D collision is occurring from?
The problem is as follows:
Think 2D Zelda (Links Awakening, A Link to the Past) style movement where you can run into walls from any of the four cardinal directions, or basically up, down, left, and ...
5
votes
2answers
210 views
How to combine tap and long hold gesture recognizers?
I have a game in which the player moves around a sprite by tapping on various sections of the screen (left, right, up, down). So far, each tap moves the sprite one tile (I use a tile system for ...
5
votes
1answer
507 views
How can I implement view wobble when my player is running?
I'm creating a FPS in XNA. So far its' going great. What I'm looking at doing is replicating the camera movements that you see in Modern Warfare. So, if you are walking the camera stays pretty ...
3
votes
1answer
413 views
How do you get an object to orbit around a certain point on a 2d plane?
I had a concept for a game come to me this morning but I can't figure out how I'd go about implementing the movement.
The general idea involves the left and right controls causing a sprite to go ...
2
votes
1answer
216 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
368 views
Best way to implement mouse-based movement in MMOG
I want to design an MMO where players click the destination they want to walk to
with their mouse and the character moves there, similar to Runescape in this manner.
I think it should be easier than ...
1
vote
1answer
89 views
How to implement deceleration and stopping over a certain distance [duplicate]
So I have a a character, say a spaceship. It needs to move distance R, and in direction T (Theta). So say if The object is at (0,0), and it needs to get to (4,3), it has R = 5 and T = about 36 ...
1
vote
1answer
359 views
Moving sprites on a graph in libGDX
In my game I'd like to move sprites on a fixed path. Until this point I was trying to stick with the tools already provided by libGDX, like the Tiled map renderer classes so I'm looking for a solution ...
0
votes
1answer
343 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 ...
0
votes
2answers
491 views
How to move the ball in straight line in gamesalad?
I have an actor named ball and I want to move it in a straight line which is created by actor ball's X and Y coordinate and cursor's X and Y coordinate. I have Move To behavior in gamesalad but I ...
-2
votes
2answers
348 views
Move camera on X and Z only
How would you implement movement on a camera in order to always move it on X and Z coordinates, and if the camera has pitch yaw or roll it still moves only in those coordinates and doesn't fly up?
