Algorithms or methods to produce events or behavior that is random in nature.

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7
votes
3answers
584 views

Need ideas for an algorithm to draw irregular blotchy shapes

I'm looking to draw irregular shapes on an x,y grid, and I'd like to come up with a simple, fast method if possible. My only idea so far is to draw a bunch of circles of random sizes very near each ...
8
votes
7answers
422 views

Make a fake random distribution?

Sometimes a "real" random event seems unfair and makes players frustrated. For instance a enemy has probability of 20% to cause double damage("critical hit"). Thus he could make 4 critical hits in a ...
2
votes
3answers
216 views

How should I distribute the values of equipment stats when I know the average value?

I am making a Diablo-like game and I want to randomly generate the stats of the loot that gets dropped. I'll use "damage per second" as an example. I've filled a spreadsheet with two columns of ...
1
vote
2answers
209 views

Monster attack is not randomising right [closed]

I have a code that I've been messing around with and the monster attack (monster.ma) isn't randomising after the first time it's called upon (elif statement). I've tried to make it a tuple since they ...
-1
votes
1answer
112 views

Advice on developing a random event engine [closed]

I am looking into creating a random event engine like the one found in the Paradox Interactive’s Europa Universalis franchise. They use a ‘mean time to happen’ mechanic that applies various ...
5
votes
6answers
521 views

Data structure for random outcome from a hit probability table

The basic idea of a hit-table is carried over from pen & paper role playing games. You roll a die or a number of dice representing your ability to attack an opponent. Your opponents defense is ...
1
vote
0answers
29 views

XNA - Wrap heightmap around sphere [duplicate]

I have an idea for a small game which would generate random 3D planets. I already have found a way to create a random heightmap in XNA ...
5
votes
2answers
226 views

Random 2D point in rectangle, but not in a polygon

I have a static rectangle and dynamic polygon. I need to generate a random 2D point in that rectangle, but not in a polygon. This is what I mean: Green is where random point can be generated and ...
0
votes
1answer
206 views

Problems when randomizing x and y position of a picturebox [closed]

So, I'm making a simple game. It's like snake but the picturebox doesn't grow. In the game, you have to get fruits and other objects. Look at berry's code: public class Berry : PictureBox { ...
3
votes
3answers
638 views

How to zoom randomly generated maps?

I made a Java program which generates a random map based on Perlin Noise + Poisson Algorithm + Voronoi Diagram. Here you can see a generated map. White are caves, black is empty. The problem is ...
1
vote
2answers
81 views

Handling Block Collisions

The title isn't great, but let me try and explain my problem. I'm working on a little game at the moment the gist of which is that you're an entity in this 2-D world and you have to dodge obstacles. ...
-1
votes
3answers
3k views

Random Between: using random with the instance_create function in GML

Hopefully this should be a simple one; I want to restrict the points that instances enter the screen from so they don't come in at the edges. In Game Maker I'm using the following code ...
2
votes
3answers
1k views

Using random numbers with a bias

I appear to be awful at describing the question so I'll try and describe the problem. I want to add a random amount of heads to my creatures but I want to be able to determine several things. a) The ...
3
votes
2answers
598 views

What algorithm to use to fill a KenKen square board with cages?

I am working on recreating KenKen, a popular math puzzle involving a blank grid that is divided into "cages". Each cage is just a collection of adjacent squares and has a clue which is generally a ...
0
votes
2answers
298 views

Generate different types of enemies with different randomness

What I want - I want to have some magic function getEnemyType(currentLevel), which will return, for example, a number. Number is enemy type, let's say, there are ten (10) types. 1 - the easiest, 10 - ...
8
votes
2answers
896 views

Random Zelda-style map generation

Im trying to randomly generate a map of rooms connected by doors, and I've succeeded in generating one using this code: public void generate(GameContainer gc) { rooms = new ...
2
votes
2answers
257 views

Looking for an elegant way to represent fixed parts of a randomly generated level map

I'm coding from scratch a small experimental game on a medium-sized random rectangular square tile map. (Say, a map of a dungeon.) There are several types of tiles (for example: floor, wall, monster, ...
-4
votes
4answers
135 views

How to select a random node [closed]

I need to know if it is possible to select a random node or select a node itself because I'm doing a zombie AI and I need him to randomly move, and I wanted to know if it's possible to do it and how.
1
vote
1answer
700 views

Random Movement for multiple entities

I have this code for a arraylist of entities. All the entities use the same random and so all of them move in the same direction. How can I change it so it generates a new random number for each ...
2
votes
1answer
698 views

Can I randomly generate an endless road?

So suppose we stand on a position(x0, y0) of a map. We can only move on the horizontal plane(no jump and stuff) but we can move forward, left, or right (in a discrete math way, i.e. integer movement). ...
6
votes
2answers
3k views

Random World Generation [duplicate]

Possible Duplicate: How are voxel terrain engines made? I'm making a game like minecraft (although a different idea) but I need a random world generator for a 1024 block wide and 256 block ...
0
votes
1answer
174 views

Creating a newspaper that effects the game's economy?

I am writing a game in Objective C/cocos2d where a newspaper is a central part of what controls or rather effects the game's world economy as well as what a city might do (such as increase X, reduce ...
0
votes
2answers
621 views

Shuffle tiles position in the beginning of the game XNA Csharp

I'm trying to create a puzzle game where you move tiles to certain positions to make a whole image. I need help with randomizing the tiles start position so that they don't create the whole image at ...
6
votes
1answer
921 views

How do I generate a smooth random horizontal 2D tunnel? [duplicate]

I'd like to create a smoother version of the navigable and quite natural-looking random tunnel found in this classic helicopter game. It should ideally be... infinite, so more can be generated as ...
2
votes
2answers
3k views

How do I randomly generate a top-down 2D level with separate sections and is infinite?

I've read many other questions/answers about random level generation but most of them deal with either randomly/proceduraly generating 2D levels viewed from the side or 3D levels. What I'm trying to ...
1
vote
3answers
784 views

Randomly placing items script not working - sometimes items spawn in walls, sometimes items spawn in weird locations

EDIT: I changed some code after getting advice from colleagues. However it still has problems occasionally, though the problems aren't as bad or frequent. Here's the new code I'm actually using: ` ...
4
votes
2answers
631 views

Basic procedural generated content works, but how could I do the same in reverse?

My 2D world is made up of blocks. At the moment, I create a block and assign it a number between 1 and 4. The number assigned to the nth block is always the same (i.e if the player walks backwards or ...
-1
votes
3answers
3k views

Trying to generate some unique numbers [closed]

I find impossible to get this code to work! I want to generate 10 numbers that are unique, but despite all I change, I get duplictates of numbers in the array! Would really preciate some help to solve ...
2
votes
2answers
514 views

Simulating probability

Stupid stupid question but here we are.. so, I want to generate some random events for an iPhone game but I guess this could be applied to any game written with a framework that suppports calls to ...
3
votes
3answers
457 views

How can multiple clients be out of sync if they use the same RNG seed?

I have been working on a client-server architecture to enable LAN play for my open source game, Aigilas. In its current state, players stay synced in all running instances of the game but enemies and ...
9
votes
2answers
5k views

Random number hlsl

How do you generate a random number in HLSL? I'm asking because I want to try gpu ray tracing. You need to generate random directions in a pixel shader. So I want randFloat(), where the result is a ...
15
votes
3answers
2k views

How do history generation algorithms work?

I heard of the game Dwarf Fortress, but only now one of the people I follow on Youtube made a commentary on it... I was more than surprised when I noticed how Dwarf Fortress actually generates a ...
2
votes
2answers
608 views

How to create reproducible probability in map generation?

So for my game, I'm using perlin noise to generate regions of my map (water/land, forest/grass) but I'd also like to create some probability based generation too. For instance: if(nextInt(10) > 2 ...
24
votes
2answers
1k views

How do I produce “enjoyably” random, as opposed to pseudo-random?

I'm making a game which presents a number of different kinds of puzzles in sequence. I choose each puzzle with a pseudorandom number. For each puzzle, there are a number of variations. I choose the ...
5
votes
2answers
273 views

Randomly generated track

I would like to create randomly generated track from one point to another with specified length of that track (it can be 2 more or less as a result of that function) in matrix. I have function called ...
1
vote
2answers
495 views

How to randomly create stars in the background?

My player flies around the screen in any direction he wants, and the camera follows him. There are stars in the background. I can't figure out how to randomly generate the stars. I made a star ...
3
votes
2answers
188 views

Camera placement sphere for an always fully visible object

Given an object: With the bounds [x, y, z, width, height, depth] And an orthographic projection [left, right, bottom, top, near, far] I want to determine the radius of a sphere which allows me to ...
1
vote
1answer
1k views

Having troubles with LibNoise.XNA and generating tileable maps

Following up on my previous post, I found a wonderful port of LibNoise for XNA. I've been working with it for about 8 hours straight and I'm tearing my hair out - I just can not get maps to tile, I ...
7
votes
2answers
301 views

Can adversarial agents flip coins?

I was thinking about peer-to-peer games by considering a simple coin tossing game. You open up your version of P2PCoinFlipping Beta 2.3 and it displays a list of player name servers. After ...
5
votes
3answers
565 views

Random monsters move in-sync instead of individually

I am making a game in which monsters spawn randomly and begin to move around randomly. I am fairly new at programming but not at game development. Through using a few tutorials I was able to make 1 ...
7
votes
3answers
4k views

How do I shuffle cards for a card game?

I am trying to develop an card game for Android Can anyone suggest me how to write code for effectively shuffling the playing cards?
9
votes
6answers
438 views

Is there a (family of) monotonically non-decreasing noise function(s)?

I'd like a function to animate an object moving from point A to point B over time, such that it reaches B at some fixed time, but its position at any time is randomly perturbed in a continuous ...
12
votes
2answers
3k views

Random numbers on C++

Recently I got used to modern languages which include a stock good random generator, which usually is the Mersenne Twister; now that I got back to C++ I have to decide what to use. I searched for ...
0
votes
2answers
3k views

As3 Random movieclips from an array to the stage

For a game with orders and clients I was trying to create the following situation: Every half minute, a client should appear at the counter. In this case I have an array with 4 movieclips (4 ...
5
votes
2answers
386 views

How to generate random points on the surface of a quadrilateral

Alright, I'm sure there has to be a simple way to do this but it eludes me at the moment. I want to be able to generate random points on the surface of a quadrilateral in 3D space. (Defined simply as ...
5
votes
2answers
1k views

Algorithm for random flight of a fly

I'm new to game development. What is a good algorithm to model the random flight of a fly? I've been looking at path-finding algorithms, but they don't give any interesting random behaviour.
12
votes
3answers
926 views

Biased, conservative random walk

I have a sprite which has Velocity and Position, either stored as Vector2. At each Update cycle, velocity is added to the position. I would like to give the sprite a third vector, Target. New targets ...
0
votes
1answer
851 views

Large Blob of landmass in Minecraft Terrain Engine in XNA

I am creating a Minecraft Terrain engine in XNA, and want to create a large blob/cluster of blocks, in a random sort of blob thing, shaped somewhat like the stuff under the Volume Rendering heading on ...
3
votes
3answers
1k views

Concerning The Minecraft Skybox

I was wondering how does the stars in night time in minecraft work, are they point sprites? And are they placed on a texture or just randomly placed on some far away location. EDIT 1: OK, well, with ...
35
votes
6answers
2k views

Why use random numbers when it comes to rewards and stats?

Many games use random numbers for things like attack damage, gold loot, or monster type being spawned. It is obvious that random numbers allow you to generate content to make games more re-playable, ...