A way of measuring time intervals for the purposes of triggering an action after some elapsed time.

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8
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2answers
4k 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
3answers
2k views

How to make something happen every N seconds in game?

I want to have something happen every N seconds, how would I do that? Maybe use a timer but how?
7
votes
3answers
1k views

Effective methods to continuously update movement in a tower defense game?

We are four guys making a Tower Defense game as a project in first grade on a university. The game is going to be really simple! Three different towers Three different monsters One map (maybe add ...
6
votes
4answers
1k views

Game Clock Precision

I'm reading a fantastic article about game timer precision and here is a quote about 2/3 of the way into the article: If you start your game clock at about 4 billion (more precisely 2^32, or any ...
6
votes
2answers
428 views

Game resource timers - general implementation

I'm interested in understanding how resource generation timers work on many of the mmorts type games out there. I can't wrap my head exactly around how the timers are synched with servers, especially ...
6
votes
2answers
152 views

Good techniques for syncing gameplay actions to specific animation timings?

So I've come across an issue in the game I'm working on, but it seems to be a pretty fundamental thing that probably comes up in a lot of games. My game requires that some gameplay function occurs ...
5
votes
3answers
1k views

Thread runs faster on a faster processor… how to control Thread speed

I have a thread that uses TimeUnit.MILLISECONDS.sleep(5); Problem is when I load my app on a faster phone say with a snapdragon, it runs at lightning speed. Is there a way to control this speed so ...
5
votes
3answers
569 views

Checkpoints in a racing game?

The game would be a race from A to B through several checkpoints. I think there are two approaches for the concept of time. The game starts with some time and player has to make it to the finish ...
5
votes
2answers
5k views

Creating a countdown Timer in Unity

I want to create a countdown timer in a Unity game I am creating. Up until now my game was running for a specific time but I was using InvokeRepeating to end the game after the set time. But now I ...
4
votes
5answers
378 views

Game Loop Problem - Growth and Recharge as Integer Values

I have a question about game loops. I understand that you shouldn't have a static loop, say 100ms and set something's speed to 1px/frame so it moves 10px/sec. You should have a speed and multiple that ...
4
votes
2answers
1k views

Execute code at specific intervals, only once?

I am having an issue with XNA, where I want to execute some code in my Update method, but only at a given interval, and only once. I would like to avoid booleans to check if I've already called it ...
4
votes
4answers
1k views

Creating the concept of Time

So I've reached the point in my exploration of gaming where I'd like to impliment the concept of time into my little demo I've been building. What are some common methodologies for creating the ...
4
votes
3answers
2k views

Will running cron jobs every minute a good practice?

I'm trying to create a browser-based game (made in PHP, MySQL, Js, HTML, and CSS) that is heavily dependent on user's actions being carried out after a certain amount of time passed whether online or ...
4
votes
4answers
385 views

Playing a death anim on an enemy that I want to remove

I've been trying to find a tutorial on how to best make animations in Android. I already have some animations for my enemies and my character that are controlled by rectangles and changing ...
4
votes
4answers
719 views

Game programming and quantity of timers

I've made a simple 2D game engine using C# and DirectX and it's fully functional for the demo I made to test it. I have a Timer object that uses QueryPerformanceCounter and I don't know what's the ...
4
votes
1answer
169 views

Time critical events based on framerate

Problem Description Basically, I've made a "programming game" in which I've made my own scripting language. It is a completely standard Lunar Lander game, though instead of directly controlling the ...
4
votes
3answers
669 views

Determine animation frame from interval

I have an array of sprites that are displayed in-order to make an animation. There is code in an update loop that has access to a value 'time' indicating how far along the animation is. Time is a ...
4
votes
2answers
1k views

C# Timers for game development

I want to find out the best way of creating time based events in games. Lets talk for example about Texas Holdem Poker. Server can handle thousands of tables and in every table we have timers: turn ...
4
votes
1answer
535 views

Android Java: Way to effectively pause system time while debugging?

In my project, I call nanoTime and use that to get a deltaTime which I pass to my entities and animations. However, while debugging (for example, stepping through my code), the system time on my ...
4
votes
2answers
741 views

C++/OpenGL Game - How to Make it Compatible with Screen Recorders?

I'm developing a 3D tower defense-like game in C++/OpenGL on Windows. The problem I'm having isn't about the game itself (the game runs fine), but it's about using screen recording software to record ...
3
votes
1answer
910 views

Converting time of day into a smooth day/night variable?

I'm trying to make a smooth day/night cycle for a game project that I've been working on. I've already set up a clock that adds deltaTime to seconds, wraps seconds to gameMinutes, etc. The issue that ...
3
votes
3answers
139 views

How to create a delay/timer and fire an action once it expires in C# Monogame? [duplicate]

First off I'm somewhat new to C# but I'm working on a game in C# Monogame and I'm trying to get timers working. There was a similar question answered around here a while back but I found that the ...
3
votes
2answers
307 views

Variable-step update() in game loop is falling behind, how can I get around this?

I'm working on a minimal game engine for my next game. I'm using the delta update method like shown: void update(double delta) { // Update code that uses `delta` goes here } I have a deep ...
3
votes
1answer
47 views

Can someone help me with my mario-inspired timer scoring system?

I am new to GameMaker's coding language or GML. I have learned and done a lot so far, but now i am having a problem. I have a countdown timer starting at 5 minutes counting down and I want the player ...
3
votes
1answer
1k views

android game performance regarding timers

Im new to the game-dev world and I have a tendancy to over-simplify my code, and sometimes this costs me alot fo memory. Im using a custom TimerTask that looks like this: public class Task ...
3
votes
3answers
1k views

HTML5 Canvas Game Timer

How to create good timer for HTML5 Canvas games? I am using RequestAnimationFrame( http://paulirish.com/2011/requestanimationframe-for-smart-animating/ ) But object's move too fast. Something like ...
3
votes
1answer
358 views

How to sync game tick in peer to peer game?

I am making a 2-player iphone action game using a synchronization service (in this case Firebase). The service allows state syncing through the internet, but I have to execute all game logic on the ...
3
votes
2answers
481 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? ...
2
votes
5answers
5k views

Game Timer In C++

I need to be able to find out how many milliseconds since that last update. Is there any way I can find it out with time rather then a thread that counts like I did below? #include <iostream> ...
2
votes
1answer
276 views

What are the factors that determine the default frequency of a shader call?

After i have been played for some days with various vertex and fragments shaders seems clear to me that this programs are called by the GPU at every and each rendering cycle, the problem is that I ...
2
votes
3answers
558 views

Let a time counter working when an app is closed?

Can we let a time counter working even if an app is closed? I would like to add a timer so that we have to wait XX seconds/minutes before a building is created in a game. I don't want to use an ...
2
votes
1answer
208 views

Gameserver travel time checks

I'm making a little RPG multiplayer game where each player can travel long distances. Traveling from point A to B can take up to 10 minutes and – once initiated – is an automatic process. Now, I am ...
2
votes
2answers
298 views

For timed levels, how do you determine time steps that are less than 1/(frames per second)?

I have made a simple HTML5 racing game. The laps are timed. I am running the game are 40 frames per second, each frame represents 40 milliseconds. There for my timer will increase in 0.025 ...
2
votes
1answer
147 views

Timestamps as ids in an entity manager?

I've built my own entity manager, as I found out some days ago, it is very similar to the Artemis framework. For now, I just use integers as entity ids. Behind the scenes, there is a simple integer ...
2
votes
3answers
813 views

How to display a GUI Texture for a certain amount of time

Is it possible to make a gui Texture display for a certain amount of Time.
2
votes
1answer
214 views

Could the delta frame time be negative?

I'm following a tutorial about the time management and, the tutorial shows this function: double GetFrameTime() { LARGE_INTEGER currentTime; __int64 tickCount; ...
2
votes
2answers
303 views

How can I animate a recursive algorithm?

Say I have a recursive algorithm, for example one that generates a random tree: // Pseudocode, just a simple algorithm: it isn't perfect. function generate_branch(angle, length, current_depth, ...
2
votes
2answers
185 views

Reconciling external events with the game loop

Is there any way I can program (in Java or Python, but open to other solutions) some game logic based on events, timed and sent by player input, without dealing with it inside the game loop, by having ...
2
votes
1answer
314 views

Game Maker Studio - how do I disable mouse click for a duration of time?

I Have a button that starts in a rest state, and then after clicking on the button, it animates out. I want to disable the mouse click for around 30 steps after the button has been clicked, otherwise ...
2
votes
2answers
655 views

How can I create delays for sprite animations that work correctly when the application is killed and restored?

Please see my original question here: How should I use system time to compute delay times without stutters? In summary, I am attempting to to introduce a delay (say of 5 seconds or so) before a ...
2
votes
1answer
102 views

How to apply effects that occur (or change) over time to characters in a game?

So assume that I have a system that applies Effects to Characters like so: public class Character { private Collection<Effect> _effects; public void AddEffect (Effect e) { ...
1
vote
3answers
978 views

How to rotate to a target position over time

I know how to do rotations to vectors, but how do I rotate over time? For instance say I made a function RotateTo(vec2 iPosition, float iTime); so it rotates to iPosition over iTime - how would ...
1
vote
3answers
770 views

Will having many timers affect my game performance?

I'm making a game for android, and earlier today I was trying to add some cool stuff to my game. The problem is this thing needs like 5 timers. I build my timers like this: timer += deltaTime; ...
1
vote
2answers
216 views

How to PRECISELY measure execution time of a code?

In order to compare algorithms speed, I measure execution time of a code part with a method similar to the one described in this question. I am not operating on Windows, but on Linux, so I use ...
1
vote
1answer
148 views

How can I compute delta time in a cross platform fashion in C++?

I need a way to get time for calculating the delta time. I see that OpenGL and GLFW have methods for it, but unfortunately I can't use them since I need to make server software too. What is the best ...
1
vote
2answers
2k views

Should I accumulate state time based on a global or a parameter?

Generally, we associate a "state time" with our sprites. Libgdx provides a method to do so: float deltaTime = Gdx.graphics.getDeltaTime(); However, in the main game loop, we have a delta time as a ...
1
vote
1answer
385 views

Time calculation between openGL update calls

In XNA, the system calls update and draw function with the time information. This contains information such as how much time has passed since last update was called. This makes easy to integrate time ...
1
vote
1answer
181 views

Creating a GUI Countdown Timer Unity5

This was originally posted as a follow-up comment to http://stackoverflow.com/questions/30714357/guitext-in-unity-5-need-an-alternative , but I'm asking it here as a dedicated question as per the ...
1
vote
3answers
167 views

Should cooldown be time or tick based?

In the past I've done cooldowns as a specific time in ms, but I was thinking isn't having tick based cooldowns better. This would be more accurate and efficent(not sure). The bad side I can think ...
1
vote
1answer
1k views

How to have an event occur after x seconds?

I want a method to run after every 10 or 15 seconds. My timer is set to: timer = (double) gameTime.ElapsedGameTime.TotalSeconds; What would be the logic to check for every 10 or 15 seconds?