The central code loop responsible for handling the running gameplay. At its most basic state, it accepts input, resolves the actions of entities, and renders the scene.
-2
votes
0answers
54 views
How to Fix Choppy Movement
I've just started game programming yesterday, reading things here and there on the internet, and I've been testing the java 2D API.
The code below does basically what I want it to (move the red ...
-1
votes
1answer
52 views
Get distance between the edge of screen and a moving sprite
How to get the distance between the edge of the screen and a vector moving sprite? I want to get the distance between my moving sprite and the edge of the screen so that when my sprite touches the ...
0
votes
1answer
50 views
Android Loop : Draw Loop : How to pull off smooth FPS?
I am writing 2D side scrolling bullet hell-like game.
I am at a point where I struggle to pull off smooth fps.
I have separated loop that manages drawing.
However I want update the position of ...
1
vote
6answers
416 views
Avoiding constant IF checks for loops
As an example, I have 3 different loops that are executed in certain conditions.
I want to know if there's any way short of something like this:
if(day)
x++;
else if(night)
y++;
else
z++;
...
4
votes
1answer
155 views
Android game loop's effect on cpu/battery usage - unexpected results
I will try to keep this question as concise and as readable as I can.
I recently came across an odd problem with my Android game that I'm developing.
It's an openGL ES 2.0 game and initially I was ...
1
vote
0answers
69 views
How to implement a multi-platform Java 2D game engine's graphics?
I'm not sure whether this question should be posted here. I'm trying to make a basic generic game engine in Java. Here's what I have so far.
public abstract class Device {
public abstract void ...
2
votes
2answers
100 views
Correct utilisation of gameloop (Android)
When using a gameloop like (much simplified)............
updateLogic();
render();
How does one perform 'single' operations? I mean, things like triggering sounds (which will only be played once), ...
0
votes
0answers
61 views
Android OpenGL ES 2.0 gameloop problems
I implemented a gameloop found here: http://www.koonsolo.com/news/dewitters-gameloop/ into my OpenGL ES 2.0 Android game. The tutorial was written with the canvas API in mind, not OpenGL so I made a ...
0
votes
2answers
66 views
C# Cursor stuck on busy state
So I implemented a fixed time step loop for my C# game. All it does at the moment is make a square bounce around the screen. The problem I'm having is that when I execute the program, the window ...
-2
votes
1answer
41 views
how to restart in java japplet? [closed]
how to restart a game? problem with my code is that when it restarts it double the enemy. so there are 10 enemies and lets say player dies than user restart and now there are 20 enemies and so on.....
...
1
vote
2answers
351 views
Why are my game ticks longer than expected?
I was working on my game, adding stuff to it, when I noticed my ticks were in the low 50's when I had set it to do a constant 60. This is my run method.
public void run() {
init();
long ...
1
vote
1answer
74 views
Gamemaker Loop Question
How often do loops repeat in game maker? Is it every step, or as fast as it can handle? I need it to loop every step, is it possible to do that? I'm talking about in code, I have a do until loop. Just ...
5
votes
2answers
316 views
Java 2D game programming: Different approaches to make a game loop
I am new to Java game programming, but the more I read the more I'm confused, because I've seen several different approaches to make a game loop:
1. The standard approach, that uses the Timer class ...
7
votes
4answers
476 views
Simultaneous game states
I think I understand the basic idea behind a Finite State Machine-based game loop. But I'm trying to write a little game in which the same object can simultaneously be in multiple, independent states. ...
-1
votes
1answer
61 views
simple win32 window wont show [closed]
The program compiles and runs successfully but does not show a window, it simply ends immediately.
#include <Windows.h>
LRESULT CALLBACK WndProc( HWND hwnd, UINT message, WPARAM wParam, ...
3
votes
2answers
119 views
Behavior Tree Iteration Rate
How is a Behavior Tree iterated in a game? For example, let's assume you have an extremely large Behavior Tree with about a hundred Actions/Conditions. If we were to run one action or condition ...
1
vote
3answers
207 views
Whats an elegant implementation for 2D collision detection in a block based game?
to make things clear, i do not want to know HOW to implement collision detection mathematically. What i am looking for is an elegant way to check for collisions without having to manage seperate lists ...
3
votes
1answer
203 views
The most efficient and accurate game loop?
Obviously for a game to work you need a game loop... Normally, my game loop would consist of something like this:
while(running){
update();
render();
Thread.sleep(10);
}
This seemed to ...
-6
votes
1answer
88 views
Generic Class Name for RTS [closed]
Hopefully this will be a nice easy question :-
I am building an RTS as a way of learning OOP techniques.
Currently the code has the following classes
Class MustInherit GameUnit
Class MustInherit ...
6
votes
1answer
167 views
Behavior Trees :: Actions That Take Longer Than One Tick
From what I understand on Behavior Trees, each Behavior should be a short goal oriented Action that could be done in a few iterations.
So for example, below is an image of a Behavior Tree:
Now let ...
1
vote
1answer
242 views
CPU usage, game loop and sleep()
I've read about this topic on numerous discussion sites, but I can't seem to find a clear definitive (up-to-date) answer, and hopefully this will me some more insight:
I've read the excellent game ...
-1
votes
1answer
120 views
Server fixed timestep not running at 30Hz but way way too fast [closed]
I'm trying to make my game's server thread run at a fixed 30Hz but can't figure out how. Basically, before I just had a stupid while(1) { //do everything as fast as you can} which means that for my ...
3
votes
1answer
124 views
Weird stuttering with fixed-timestep, variable-framerate game loop
I've been trying to set up fixed-timestep loop for my game, using the technique from here. I have no need for the interpolation step as I intend to run the logic at or above vsync speed.
Here is a ...
-1
votes
1answer
99 views
Drawing multiple sprites with clear screen for every frame
I googled with best of my skills, but I cannot find any relevant answer to my problem. I'm making a game with an isometric view. I need to draw multiple sprites on the screen and before switching to ...
2
votes
1answer
112 views
Selecting the entities needed for rendering [duplicate]
Currently I'm sorting and looping every entity on my level but I really don't need to. Only a small subset would be on screen.
If I could extract a list of entities from my main list that are on ...
2
votes
2answers
152 views
Lockstep Game Loop
I have an XNA game using a basic lockstep update loop.
The client sends all commands to the server,
and updates only if it has received the next turn's commands from the server.
When does a turn end? ...
10
votes
3answers
535 views
EXTREMELY Confused Over “Constant Game Speed Maximum FPS” Game Loop
I recently read this article on Game Loops: http://www.koonsolo.com/news/dewitters-gameloop/
And the recommended last implementation is confusing me deeply. I don't understand how it works, and it ...
3
votes
3answers
248 views
How precise should timers in update loops be?
What is the suggestion of "enough precision" in a timer for a fixed game update loop?
Currently I'm testing with this code, but it sometimes misses 1-2 updates @ 50hz. While at 30hz it seems to work ...
0
votes
1answer
393 views
Android: Improving surfaceView?
I'm using Surfaceview in my Android app. I have two threads, one for UI and another for rendering and updading the UI.
I am limiting my frames per second to 30 fps and have employed frame-skipping ...
3
votes
2answers
256 views
How do I calculate consistent frame timings at 60fps?
I'm writing an HTML canvas game that uses requestAnimationFrame and therefore runs at 60fps, although this is more of a question about failing arithmetic than about JavaScript.
If I measure the time ...
2
votes
1answer
200 views
Online card games: game loop or event based?
The only games I've made have been the game loop variety. I'm just starting to think about building an online poker game where people could meet up in a lobby, etc. Cards seem event based... is the ...
0
votes
0answers
64 views
Using boost function to wrap execution of a boost signals2 signal
I am considering using the boost library to design a simple yet effective callback event notification framework for my game application. The idea is that objects that can raise events would have a ...
1
vote
2answers
154 views
Multiple pipelined game loops
I am considering using the following game engine design pattern, but I am unsure if it's a good idea or not:
Each major task (drawing, physics, logic, networking, disk I/O) will have its own ...
1
vote
1answer
217 views
XNA - moving the 3rd person camera
I'm having following problem:
Can't set my camera to follow object from behind and rotate when I use left/right arrow. I've tried different tutorial and examples but it still doesn't work for me. ...
1
vote
1answer
237 views
SDL2 focus lost = massive gain in FPS
Whenever I lose focus from my game window, I go from ~60FPS to 6000+, then when the window gains focus again, I go back to around 60 frames per second. And yes, this happens every time I run my game, ...
12
votes
2answers
587 views
Design of a turn-based game where actions have side-effects
I am writing a computer version of the game Dominion. It is a turn-based card game where action cards, treasure cards, and victory point cards are accumulated into a player's personal deck. I have the ...
5
votes
2answers
170 views
Simultaneous events in a realtime system, where processing order causes different outcomes
I am working on a realtime dungeon crawler, focusing on a relatively complex and flexible skill system. Somewhat similar to MMORPGs with many compound spells, area effects, buffs/debuffs, ect. I am ...
11
votes
3answers
580 views
Game loop, how to check for conditions once, do something, then not do it again
For example, I have a Game class and it keeps an int that tracks the player's lives. I have a conditional
if ( mLives < 1 ) {
// Do some work.
}
However this condition keeps firing and the ...
0
votes
0answers
76 views
How to monitor the object position while it moves from one place to another?
In my game two objects rotate in opposite directions and at one particular
place, the two objects meet. In that place I want to track the x and y degrees.
If this is possible please share your ideas.
...
0
votes
0answers
193 views
Am I doing this node.js game loop wrong?
I have 2 arrays of JSON objects, actions and game objects.
At any time a user can make a request from the client which can add an action to the actions array.
I have a setInterval(function(){ }, ...
4
votes
2answers
637 views
Server side game loop
Many java games use thread.sleep() to controll fps. Since the server does not display graphics, should the server game loop keep running just calculating delta time? Like this example:
long ...
3
votes
2answers
294 views
Should I redraw every pixel?
For my first game I implemented a tetris clone in javascript. My "canvas" and an HTML <table> with every <td> representing a single block. Instead of having a gameloop redraw every single ...
2
votes
0answers
441 views
HTML5/JS - Choppy Game Loop
I have been experimenting with HTML5/JS, trying to create a simple game when I hit a wall. My choice of game loop is too choppy to be actually of any use in a game.
I'm trying for a fixed time step ...
0
votes
0answers
139 views
Implementation of Race Game Tree [closed]
I build a racing game right in OpenGL using Glut, and I'm a bit lost in all the details. First of all, any suggestions as a road map would be more than great.
So far what I thought is this:
Tree ...
3
votes
2answers
479 views
Calculating Delta time , what is wrong?
For 2 days now i am trying to calculate the correct delta time for my game , I am starting to getting crazy since i tried all the solutions that i found on the 5 first google pages...
What is wrong? I ...
1
vote
3answers
121 views
Triggering State Changes with Health Counter
I'm developing a game where the player changes states as their health decreases. Below 50, it should trigger animation1. Below 30, it should trigger animation2.
The problem is, I only want to trigger ...
1
vote
1answer
105 views
Help to organize game cycle in Java
I'm pretty new here (as though to a game development).
So here's my question.
I'm trying to organize a really simple game cycle in my public static main() as follows:
Scanner sc = new ...
2
votes
2answers
357 views
How to slow down a sprite that updates every frame?
I am going through a Allegro 5 tutorial which has a game loop.
There is also a variable "active" which determines if a key is being held down. Thus if the left key is being held down active is on and ...
0
votes
2answers
530 views
Networking Client Server Packet logic (How they communicate)
I want to know what is the logic behind server client communication through packets for a real time game.
for example the server sends x packets then the client receives x packets and processes them.. ...
-1
votes
1answer
164 views
2D Game Help In XNA
I'm making a game in XNA called The Adventure Of The Very Hairy Princess Fairy. The game is a "Sidescroller/Platformer" like mario but there is a problem. How do I attach a weapon to the player ...
