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Questions tagged [simulation]

Simulation is the imitation of some real thing, state of affairs, or process. The act of simulating something generally entails representing certain key characteristics or behaviours of a selected physical or abstract system.

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Deep class inheritance hierarchy -- bad idea?

hoping a grandmaster can shed some light. Very high overview is that I am no beginner to coding, but still new to OOP. This set of message classes is at the heart of a large simulation application we're writing, and I don't want to do it…
Spatula City
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Depth first search - 2D Game map

I have created a 2D maze, and I want to find the quickest path between the red->blue colored nodes. I'm an unsure how I would go about implementing a depth-first search. I know that an adjacency matrix or list could be used to represent the…
Robert
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How to simulate keyboard input in ALL applications?

I'm writing an app (in C#) which as a part of it must simulate and send some key strokes to another application. I'm using http://inputsimulator.codeplex.com/ project for simulating keys, and it works in many applications, but in some it doesn't -…
Fenix Voltres
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How to cheaply simulate water on iOS?

First off, I'm not thinking about that. I was wondering how to make a simple simulation of a waterfall onto some dunes on the iPhone. It turns out several people tackled the issue of moving water, and GameDev has approached the idea several times.…
Kheldar
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Simulate "Newton's law of universal gravitation" using Box2D

I want to simulate Newton's law of universal gravitation using Box2D. I went through the manual but couldn't find a way to do this. Basically what I want to do is place several objects in space (zero gravity) and simulate the movement. Any tips?
Ashika Umanga Umagiliya
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What (else) is wrong with using time as a seed for random number generation?

I understand that time is an insecure seed for random number generation because it effectively reduces the size of the seed space. But say I don't care about security. For example, say I'm doing a Monte Carlo simulation for a card game. I DO…
pepsi
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Earth orbit simulation has incorrect speed

I'm very new to programming and I've gotten a school assignment for which I have to create a simulation of the earths orbit around the sun in p5.js . We were offered a simplified way to compute the gravitational pull but I wanted to use the actual…
Gijsfwb
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How would one programmatically simulate lower processor frequencies?

I'm interested in running a program at a specific frequency (like 25MHz) on my 2GHz+ processor. The only method I can think of for doing something like this is using a microsecond precision sleep function, but I am unsure of how to calculate how…
ytrp
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Simple simulations for Physics in Python?

I would like to know similar, concrete simulations, as the simulation about watering a field here. What is your favorite library/internet page for such simulations in Python? I know little Simpy, Numpy and Pygame. I would like to get examples about…
Léo Léopold Hertz 준영
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Is faking a WPF mouseover possible?

I have a data template with a textbox and a button with some styles on it. I would like to have the button show the mouse over state when focus is on the textbox beside it. Is this possible? I figure it would involve something like this. I can get…
Jippers
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Simulate mixture data with different mix dependecies structure between each two variables?

I would like to simulate a mixture data, say 3 dimensional data. I would like to have 2 different components between each two variables. That is, simulate mixture data (V1 and V2) where the dependencies between them is two different normal…
user7905871
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How does Simulink simulation engine work?

I would like to understand how Simulink simulation engine works. Does it use a discrete event simulation mecanism (then how continous time is handled ?) ? Does it rely on a static cycle-based code generation ? Or ?
JCLL
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Nearest Neighbors in CUDA Particles

Edit 2: Please take a look at this crosspost for TLDR. Edit: Given that the particles are segmented into grid cells (say 16^3 grid), is it a better idea to let run one work-group for each grid cell and as many work-items in one work-group as there…
sarasvati
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How to vectorize a random walk simulation in MATLAB

I am rewriting a Monte Carlo simulation model in MATLAB with an emphasis on readability. The model involves many particles, represented as (x,y,z), following a random walk over a small set of states with certain termination probabilities. The…
turtlesoupy
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Is it possible to build a heatmap from point data at 60 times per second?

I'm working on a simulation for clouds (actual clouds) where the clouds are simulated by 3D points, then projected into a 2D heatmap, about 640x480 units big. The number of points is about 50k, which is as small as I can go without the simulation…
Anne Quinn
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