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
1k views

How to follow object on CatmullRomSplines at constant speed (e.g. train and train carriage)?

I have a CatmullRomSpline, and using the very good example at https://github.com/libgdx/libgdx/wiki/Path-interface-%26-Splines I have my object moving at an even pace over the spline. Using a simple ...
5
votes
1answer
270 views

Get normal dependent on collisions position

As I hask ask here I'm working on how my objects can move over the terrain and other objects. My proposal and also an idea in the answers was to calculate the rotation from the object with the normals ...
-1
votes
1answer
134 views

How can I implement input handling into my game?

I'm making a libgdx game where the player dodges falling objects. To move the player I have it set so that on desktop he moves left and right when you press A and D respectively. I am trying to ...
0
votes
0answers
17 views

How can I increase the horizontal speed of something every N seconds in Unity and make it STAY increased? [duplicate]

I have these particles that only move horizontally and to make the game harder I would like to increase the speed of these particles every 5 or so seconds. I am not sure how to do this I am still ...
0
votes
0answers
93 views

Steering problem in 2d game

I am creating a little 2D non tiled top down game. The enemy uses steering behaviour for chasing player or wandering around, but I do not think my code is working as it should be. My problem is, the ...
0
votes
2answers
178 views

How to move a car over an environment

At the moment I'm writing a little OpenGL application. For now I have a car which can drive down a road. This works really good because I simply put the car on the street plane. Now let's say on the ...
0
votes
1answer
484 views

Can't go above max speed with RigidBody2D.AddForce()

I'm having trouble making a character move faster than a certain limit using RigidBody2D.AddForce(). My game is a top-down 2D game (constrained to the x/y plane). I'm using a float 'MovementSpeed' to ...
0
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0answers
126 views

How can I make several 2D objects move in complex pre-defined patterns?

I will be making my mobile 2D game in Unity and the objects in the game will have complicated movement. For example, there will be lots of squares (around 10-15 tiny squares) in the middle of the ...
0
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0answers
146 views

How to make a grid layout in Ruby (Gosu)?

So I'm attempting to make a simple Snake game. However, there's one major problem with that - I don't know how to make my playing field as a grid. So far I've split my snake into segemnts, which are ...
0
votes
1answer
66 views

How can I make background elements wrap around the screen?

I'm looking to make my clouds wrap around the screen in my game (like the picture). Right now it just continues off the screen. The current movement code is: Cloud.center = ...
0
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0answers
43 views

Check if object is at position, then move player as close to object without colliding, or re-direct player?

Basically what the title says, I'm using the mouse position to move the player around the screen, and the issue I'm having is that if there is, let's say, a boulder where I'm trying to run, how would ...
0
votes
1answer
97 views

Basic Monster Movement

I'm new to game development. Specifically server side. Currently I am trying to implement movement of monsters. From point A to point B. I have used an a* pathfinding library to calculate the path to ...
1
vote
2answers
336 views

How do I limit the rotation speed of a mouse-following object?

I am trying to make a 2D top-down game where player controls a spaceship. The spaceship (a rocket) is just a sprite following the mouse cursor with a fixed speed and is always pointing toward the ...
5
votes
2answers
3k views

How to achieve smooth movement with a fixed timestep

Previously in the update method of my game I was using a variable time step which provided very smooth movement of a player sprite except when the frame rate would drop, even slightly. At that point I ...
9
votes
2answers
296 views

Interpolating between two networked states?

I have many entities on the client side that are simulated (their velocities are added to their positions on a per frame basis) and I let them dead reckon themselves. They send updates about where ...
2
votes
1answer
1k views

Why do I have to run my 2D game at 300+ FPS for movement to be passably smooth?

I'm working on a simple game with SFML, and the only way to make the game reasonably smooth is to allow it the highest framerate my machine can handle (that is, giving it no limit). 60 FPS in my game ...
0
votes
2answers
92 views

Improving the performance of smooth movement up and down

I would like to achieve a smooth movement of a game object up and down. The way I have always seen this done is via a sine wave, and adding the value of y for a specified X to the game objects value ...
1
vote
1answer
2k views

LibGDX: Smooth movement on a grid based game

I'm making a game with LibGDX where the player is on a grid (like a Chess board). For now, I'm moving the player by teleporting him 16px in a direction. I'd like to use the delta time to make smooth ...
1
vote
1answer
683 views

2D Tile Movement in Java

I have this tilemap and a player in my game, and I got the player to move by adding the velocity to the position. However, it is very hard to control the player exact this way of the tilemap. So, I ...
0
votes
0answers
449 views

Adding Player Movement and Firing on Touch Input (Unity)

I am having many problems with this. I am a new game developer and I am using a Unity tutorial. But I want to add touch input for movement and a touch button for firing the weapon. How can I do this? ...
0
votes
0answers
163 views

Projectile Delta Movement

I'm running into an issue where I can't get the Projectiles to travel in the right direction, I'll admit my trig is a little rusty, anyone know how below might be improved? I am trying to get the ...
1
vote
1answer
78 views

Lots of bouncing balls sink into each other [closed]

I'm trying to model a system that simulates an arbitrary number of bouncing balls with some gravity. So far I've come up with a solution that can be seen here: ...
0
votes
1answer
148 views

3D Translations relative to 3D Rotations

I'm trying to program camera movement to be relative to camera rotation. (Forward is always forward, regardless of pitch, yaw, and roll) I want to be able to move forward, backward, left, right, up, ...
0
votes
1answer
174 views

Make continuos movements with controllers in LibGDX

I've been trying to make the OUYA controlers work with a LibGDX Framework Practice Game. Everything is working perfectly expected for one thing : The movements are not continuos. The problem is, ...
3
votes
3answers
502 views

Prevent movement cheating in MP games

I have read a lot about movement in multiplayer games, but not so much on preventing cheating. Let's say a client sends moves packets whenever the player press a movement button, then the server ...
2
votes
2answers
379 views

Movement on objects in 2D tile/grid based game

This question is an addition to both of these questions: Boat passing under a bridge in a 2D tile based RTS How to handle slopes/bridges in a 2d grid turn based strategy game While I get the idea ...
0
votes
3answers
116 views

What is the best way to keep track of time in a game?

I'm getting to the part in development where I'm noticing that timing is going to be an issue. If I put my movement update in the same function where I draw the scene, then a low FPS means slower ...
3
votes
3answers
282 views

How to make an object oscillate left and right?

I can't seem to make an object move left and right, back and forth, on room start whilst on solid ground. Codes I used: Step Event: if image_index is greater than 5, then physics_apply_force ...
1
vote
2answers
429 views

Restricting character movement to “rails”

I'm building a Pacman clone in Unity 3D and am now thinking about how to restrict the movement of the player to the hallways that the map is made up of. Basically, the player is only allowed to ...
0
votes
1answer
325 views

How can I smoothly move from tile to tile?

I've looked at other games with tile based movement. I am aiming to create a game like pokemon, where the player moves smoothly to the next tile. I am using KeyAdapter, in my KeyInput class. This ...
1
vote
2answers
129 views

Make square walk by rotating around corners

I in the very beginning of making a small game, and I'm having some problems getting the basic movement of my character. My character is a square that can be moved by rotating around a corner. The ...
0
votes
1answer
212 views

Smooth Npc Movement

I have an Npc in my rpg that moves around based on a Random() variable. My main goal is to have him walk in a random direction a small bit every 2 seconds. I only want him to move about 32 pixels ...
1
vote
1answer
740 views

Constraining Movement to Path/Splines

First of all take a quick look at this : https://www.youtube.com/watch?v=LQtKP-EymFM So this is to give a idea of what I mean by following a path, basicly I am trying to understand how something ...
2
votes
1answer
454 views

How do I create a player movement system in Farseer?

My group of students is helping produce a a 2D platformer. We tried making a pixel-based collision system which fell through. Now I am trying this physics engine on for size and see new ways to create ...
2
votes
1answer
840 views

How can I rotate an Object towards a point in JMonkeyEngine

From time to time in my game, enemies spawn in different positions and they move toward a point. I need to rotate their body in such a way that their "face" is rotated towards the point. For enemies ...
0
votes
2answers
454 views

Collision detection with multiple polygons simultaneously

I've written a collision system which detects/resolves collisions between a rectangular player and a convex polygon world using the Separating Axis Theorem. This scheme works fine when the player is ...
0
votes
1answer
187 views

Moving a tiled map in a jframe

I rendered a tiled map, with the help of slick2d, in my JFrame in Java. I can move my main character, but it is just that the character itself moves. I would like to do it that, if the player moves, ...
6
votes
3answers
131 views

Player acceleration formula and using it with authoritative server

I know the theory behind authoritative client-server architecture, it works very well for character movement in a tile-based world: you send messages like "I moved one square to the right", the server ...
2
votes
2answers
588 views

Vertical Camera Movement in a 2D Platformer

I would like to ask about how vertical camera movement should be handled in a platformer in which the player changes his Y position frequently. For the past two days I've tried to adjust the camera ...
8
votes
6answers
3k views

How do you move a sprite in sub-pixel increments?

Pixels are either on or off. The minimum amount you can move a sprite is a single pixel. So how you make the sprite move slower than 1 pixel per frame? The way I did it was to add the speed to a ...
1
vote
2answers
262 views

Framerate dependent movement

I'm moving my character controller using Euler integration like this: Vector3 originalPos = transform.position; Vector3 acceleration = Physics.gravity; velocity += acceleration * Time.deltaTime; ...
0
votes
1answer
203 views

Space Invaders: Getting the aliens to move as one [closed]

I'm having issues getting my invaders to move together. Currently they hit the edge of the screen and then go crazy. Here is the code for the Alien: #include "Alien.h" #include <iostream> ...
0
votes
1answer
286 views

How to rotate and move a model in the direction it is facing?

I am not using Unity or XNA. Eventually, I will probably use OpenTK for graphics. But for the concept of a game I'm writing, I am using the console for keyboard input and visual logging of events, ...
1
vote
2answers
3k views

Moving a sprite towards an x and y coordinate

Given a sprite with an x and y coordinate, how would I move it toward another sprite with an x and y coordinate? I've already made it face towards the other sprite, and I've made it move towards the ...
0
votes
1answer
101 views

Using RPC's for movement of an object across a network [closed]

I've been building upon http://www.gamasutra.com/blogs/DarrelCusey/20130221/187128/Unity_Networking_Sample_Using_One_NetworkView.php At the moment when I spawn a sphere on the server it spawns on the ...
0
votes
1answer
115 views

Spawning a Sphere and trying to move it [closed]

I've been trying to build upon a blog post on Gamasutra http://www.gamasutra.com/blogs/DarrelCusey/20130221/187128/Unity_Networking_Sample_Using_One_NetworkView.php In this I would like to spawn a ...
0
votes
1answer
178 views

How to implement mouse based movement in an RPG? (Java) [duplicate]

I'm making a 2D rpg and I want the character to move with the mouse, ie the user clicks and then the character moves to that location. How do I accomplish this?
3
votes
2answers
534 views

How do I make a 2D race car turn smoothly? [duplicate]

I'm making a competitive 2-player 2D racing game for a school project. I'm struggling with the movements of my car: I made it a square for testing purposes and it can move left, right, up or down, but ...
0
votes
0answers
239 views

isometric movement

I'm developing an isometric strategy game in flash using the Starling framework. I wanted to know what is the best way to move units about the isometric grid, and to render them the right way. Now ...
1
vote
1answer
219 views

Smooth anmiation with LibGDX

I want to move a enemy from its current position toward the mouse position in LibGDX. x, y - enemy position saveX, saveY - position where my enemy need to go(or mouse position saved at specific ...