Tagged Questions
9
votes
2answers
3k 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 ...
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 ...
6
votes
4answers
427 views
Implementing AI to hide behind obstacles
I am developing an AI simulation of predator and prey. I would like to simulate the AI hiding behind obstacles, if it is being chased. But I am still trying to figure out the best way to implement ...
5
votes
1answer
683 views
Smooth movement in a tile based game
How can we make our character move smoothly across tiles? He moves tile by tile, but that looks unprofessional. In addition, when you hold down the arrow keys he zips across the screen. How can we ...
4
votes
4answers
486 views
Can a high FPS negatively affect how a program runs?
Yeah I know this is a broad question and will get down rated, I'm just hoping for some answer before it gets closed.
Anyway, I'm using Slick 2D/Java to play around with graphics. I'm having some ...
4
votes
2answers
4k views
How can I move a 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 ...
4
votes
1answer
203 views
How do I make a cube move by rolling?
I am learning jMonkeyEngine by making some small games with it. I have a simple rectangular cube that I want the player to be able to roll around the game world.
When he presses the arrow keys, the ...
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 ...
3
votes
2answers
1k views
How do you set the movement speed of a sprite?
I'm using Slick 2D/Java to play around with graphics. Getting an image to move is easy:
Input input = gc.getInput();
if(input.isKeyDown(sprite.up)){
sprite.y--;
}else if ...
3
votes
2answers
732 views
Mouse-driven Movement
I'm trying to write a game where player picks where they are going by just mouse-clicking on that position and it goes there (just like RuneScape's point-and-click mouse interface).
I'm trying to get ...
3
votes
1answer
283 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 ...
3
votes
1answer
182 views
AI surrounding algorithm suggestions
I am building up a simulation where predator groups (tribes) try to hunt other agents in the simulation (whom also are clustered in groups).
Now I got to a point where members of a group follow their ...
2
votes
3answers
577 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 ...
2
votes
2answers
591 views
Making a player move to my mouse when clicked?
How can I get my player to move to the mouse when it is clicked (like in Warcraft)?
So far I have tried:
if (Mouse.isButtonDown(0)) {
if (X < Mouse.getX()) {
X += Speed;
}
if ...
2
votes
1answer
494 views
2D Top down acceleration vector
I have been wanting to solve the issue of movement once and for all... with all that I have learnt and read through, should be a piece of cake one would have thought... , seems it isn't. Having ...
2
votes
2answers
193 views
Smoother controls
I am trying to move my background left if the user hits the right key. and right if the user hits the left key, so that it will look like the player is moving.
The problem is that whenever I hold the ...
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 ...
2
votes
1answer
842 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;
...
1
vote
2answers
646 views
Collision Problems
I'm having some troubles with a 2D platformer type game (there's more to it, but that's all that matters for this question). I had collision with the platforms working fine, but if the character hit ...
1
vote
1answer
975 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 ...
1
vote
1answer
33 views
Preventing diagonal movement
I was originally fine with diagonal movement but it's clashing with my sprite animation...
public void keyPressed(KeyEvent e){
int key = e.getKeyCode();
switch(key){
case ...
1
vote
1answer
197 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
2answers
301 views
How can I move an object towards another along a straight line
How can I move an object (like a cube) towards another object?
Let's say that we have a red cube in the center of a floor, and a blue cube in another location, there aren't objects between this two, ...
1
vote
3answers
233 views
Interpolation using a sprite's previous frame and current frame
Overview
I'm currently using a method which has been pointed out to me is extrapolation rather than interolation. As a result, I'm also now looking into the possibility of using another method which ...
1
vote
1answer
412 views
How to I get a rotated sprite to move left or right?
Using Java/Slick 2D, I'm using the mouse to rotate a sprite on the screen and the directional keys (in this case, WASD) to move the spite. Forwards and backwards is easy, just position += ...
1
vote
0answers
160 views
Checkers make move and take move algorithm
I'm coding a checkers game and I encountered a problem and I'm 99% sure is about how the move is done and taken back.
The structure of my game data is:
an 8x8 array containing my board squares. ...
1
vote
0answers
73 views
The input doesn't recognize that I release the key? [closed]
I'm creating a window (JOptionPane), in response to a collision. However, if the player is holding a key down when the window pops up, the input doesn't trigger a key release when the key is released.
...
0
votes
2answers
89 views
What design pattern should I employ for validating character movement?
I'm developing a RPG in Java and have a Map class, which will contain all the MapObjects (the Player, Enemies, Walls, etc.):
Map.java
public class Map {
private int width;
private int height;
...
0
votes
1answer
103 views
Smoothing Pathfinding on Tile-Based Terrain but Free-Roaming Player
I'm sorry if this is a long post, but I feel as though the details should help clarify gray areas. I'll try and provide a detailed layout of what I'm trying to achieve, what I have so far, and where ...
0
votes
1answer
66 views
my movement is working good on keyboard but on android its not
So basically here is what my movement is like for keys:
key down
if (keycode == Keys.LEFT) {
mishi.getAcceleration().x = -13;
}
key up
if (keycode == Keys.LEFT) {
...
0
votes
1answer
141 views
Java: Basic Movement AI not working
I am working on a basic AI system to get an entity to follow a player. I created both the player and the ghost entity, but it seems as if the ghost only wants to increment both x and y, it never wants ...
0
votes
1answer
438 views
Pokémon character turning / facing: How is it achieved? Movement is already done though [closed]
You know that when the player playing Pokémon games want to change the facing of the main character, one would simply tap on the directional pad (D-pad) on the Game Boy (Color/Advanced/Advanced SP) or ...
0
votes
2answers
532 views
Can't get sprite to rotate correctly? [closed]
I'm attempting to play with graphics using Java/Slick 2d. I'm trying to get my sprite to rotate to wherever the mouse is on the screen and then move accordingly. I figured the best way to do this was ...
0
votes
2answers
489 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#, ...
0
votes
0answers
23 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, ...
0
votes
1answer
90 views
What's the best way to time a character AI movement on android/java?
I'm creating an android game and I'm trying to figure out the best way to time a character position change, something like this:
public void move() {
//this.posX += 5;
this.posY += 5;
if ...
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
votes
1answer
710 views
2D top down movement
I'm trying to make my first real time game.
I'm having problems with the movements using the mouse though. If close to theX axis, the player is moving fine, but if close to the Y axis(going ...
