Algorithms are used for calculation, data processing, and automated reasoning. More precisely, an algorithm is an effective method expressed as a finite list of well-defined instructions for calculating a function.

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Most efficient way for nested loop to not repeat a value of parent loop in pair-wise structure (C# or Javascript) [closed]

It's hard to choose the correct title for this question, so let's see if I am able to better convey here what I am in search for. If the title is too far away, suggestions are welcome and I can edit ...
2
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1answer
327 views

How to implement view bobbing?

I'm developing a First-Person shooter game. Everything is just fine but I've a little problem with my camera moving. My FPS camera is moving smoothly! But the camera should move like a human is ...
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0answers
58 views

Marching cubes and greedy meshing

Currently i am trying to implement the marching cubes algorithm into my voxel engine to get smoother terrain. My voxel engine also uses the greedy meshing algorithm to optimize the engines meshing. My ...
17
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2answers
2k views

Matching a chunk of procedurally generated world to a chunk of other world

Have you read The Chronicles of Amber by Roger Zelazny? Imagine yourself playing in 3rd person MMO game. You spawn in the world and start to wander around. After some time, when you think, that you'...
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2answers
183 views

Are hard coded “rooms” better than dynamically generated on a smart phone, from performance point of view

This question pertains to a type of platform/maze game (made with Unity 5) for typical smartphones (iOS/Android). This game has following characteristics: 1. an upper limit (about 100) on the amount ...
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1answer
177 views

Improve (adding randomness) minmax algorithm for Connect Four

I have implemented the minmax algorithm for the Connect Four game. It works well (almost...), but if the player does the same moves, the computer will do the same moves as well, for each match. There ...
4
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1answer
62 views

What is a viable way of finding the minimum swaps to sort numbers in pyramid?

I have made a game that consists of a pyramid of hexagons with numbers from 00 to 99 randomly positioned in groups of 6, 10 or 15 elements. Now, I'm working to create an auto-solver but for the last 2 ...
2
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2answers
134 views

Funnel algorithm

I'm implementing the funnel algorithm for pathfinding. After searching many resources I found those : https://skatgame.net/mburo/ps/thesis_demyen_2006.pdf http://digestingduck.blogspot.com.by/2010/03/...
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4answers
245 views

Good algorithm to generate pixels for thick line?

I am not really making some drawing as of picture manipulation but I use line function to calculate "claimed" pixels in my line race game (demo here): The actual rendering is apart from the game ...
7
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3answers
230 views

City-region generation

I am currently making a procedural generated map and wanted to add regions to the cities indicating their reach, the way I am achieving it currently is by expanding outwards from the city center until ...
5
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2answers
285 views

RTS: Unit sight in fog of war

I am making an RTS game, and like most RTSs, you can see what's going on in a part of a map only if you have a unit over there. I have few ideas how to accomplish this, but there are problems with ...
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1answer
388 views

Match 3 game - Check for matches

I'm out of ideas and need help. So far I generate a board nicely using a flood fill algorithm and a 2d-array, I can also move tiles around the board. Each Tile knows its own row, column and ID (...
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21 views

How can I dynamically change the bone structure to reach a point?

Say I have a skeletal animation about a whip hit a target. When I create this animation, the root of the whip is at (0, 0, 0) and the target is at (10, 20, 10). Now in the real game, the target is not ...
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3answers
118 views

How do I make hit damage a Gaussian distribution centered around a value?

I'd like my character's attacks to on average 10 damage, but to vary anywhere from 0 to 20. Instead of a linear spread, I would like a normal distribution, so most of their hits are between 10-15, ...
2
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1answer
95 views

How can I calculate an octree node's depth from its location code?

The article Advanced Octrees 2: node representations states: The AABB (axis-aligned bounding box) of the node can be stored explicitly as before, or it can be computed from the node’s tree depth ...
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2answers
318 views

Best 2d AI movement system

I'm creating a top-down rpg (no tile-based) using libgdx. Now I need to make enemies move on map with obstacles. What is the best approach to realize that? A*(I think, if enemy see player, he should ...
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0answers
39 views

How to get a difference of angles in one mathematical expression? [duplicate]

I need to do this for AI and also range calculation over a curved surface. I have two angles, a1 and a2, which can be in the range from 0 to 359. I need to calculate the difference between them, and ...
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1answer
98 views

A* Pathfinding math for 2D, oblique style game

I'm making a 2D, oblique-styled RPG game and am implementing A* pathfinding for NPCs. The game is on canvas, using melonJS engine and sprites not confined to a 'grid'. I'm having a hard time ...
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1answer
115 views

A Star pathfinding on oblique map

I'm making an RPG and want to make npc ai to navigate the city. I am using polylines for collision detection, and my map is 2D, but oblique styled. I am considering using the A* algorithm to help them ...
3
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4answers
170 views

Special Pathfinding Algorithm

I need help with following pathfinding Task: I have a grid (7x7 squares) and the starting square is always on the far left side (column 0) and its target is to reach the far right side (column 6). ...
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1answer
41 views

traversing the area

i want to move point along spiral like hexagon for example i want to traverse the whole area and my player (point) is standing where i have placed it manually. now i want to start from this point and ...
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1answer
146 views

Pathing for 2D, sprite-based game

I'm making a 2D, oblique-styled sprite based RPG. My game does not live in a 2D matrix (like Tetris), rather it's sprites animating over a tilemap. I am trying to set pathing rules for NPCs. I've ...
2
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1answer
49 views

Calculating the illumination level of an object

In my (UE4) scene I have an object and several (point) light sources. The object can move around, getting closer and away from all those light sources. Now I need to calculate for each light source ...
2
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2answers
402 views

What are the disadvantages of R-Trees in collision detection?

I was poking around in SQLite and discovered R-trees. A little digging revealed that R-trees are really just fancy AABB-trees. Then I realize that the state of the art in collision detection (often ...
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1answer
78 views

Efficient dynamic character shadows [SW Rasterizer]

I am working on a SW rasterizer for a quarter-century old console (think sub-100 MHz RISC CPU, no dedicated 3D HW, couple megs of RAM) and am approaching a stage where I will be adding dynamic ...
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2answers
137 views

How can check a collision between 2 non-axis aligned boxes?

I'm making a simple and easy game and I need to detect the collision between 2 boxes. It only needs to return trueor false, no physics involved. I started working and couldn't find an algorithm that ...
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0answers
69 views

How do I efficiently generate all valid configuration spaces of a Tetronimo in Tetris?

This question is relevant to How can I do optimal pathfinding for a tetris piece, which assumes we already have a start and end state. How we can efficiently generate all those valid configuration ...
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3answers
95 views

Best collision algorithm for Axis Aligned Bouding Boxes [duplicate]

I have a number of quads (suppose like 20-40) and i want to quickly check the collisions between any of them. I would like to know if there's a quick algorithm to do that 60 times per second without ...
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0answers
77 views

Grid board fill with special cells - predicting movement

I have to create an algorithm which will fill a board, which is made of square cells, with elements. Board can have different sizes and it doesn't have to be a square. Elements fall from top to bottom....
0
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1answer
120 views

Algorithm to fill a shape defined by 4 pixel points?

I'm developing an application in Unity3D where a user can define 4 pixel points on screen, and what I would like to do is fill this shape with pixels using Unity's SetPixel. While I can do this ...
2
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1answer
49 views

How does hidden surface removal work?

Lately, I've been learning some OpenGL for fun, and I've been thinking about hidden surface removal. Say you have a high poly count static scene, with nothing that moves, no bones, physics, etc. Just ...
2
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3answers
171 views

How do game engines mitigate CPU cost for many trigger zones & entities? [closed]

It's a rather simple question, but a somewhat fundamental in computing in general. Let's say we have a player controlled character in an open world. The world is large. In this game-world we have a ...
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1answer
74 views

Optimal trajectory of area exploration

I've got next problem. There is three objects: first one, with next characteristics: circular area of view, speed, drag coefficient; wind (or water current, doesn't matter; some sort of resistance) ...
2
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1answer
65 views

Short distances from reference point

I would like to compute short distance from reference point in 2d grid. To expose: 0, 0: not penetrable 0, 1: not penetrable ... 1, 1: penetrable ... I search an algorithm who return: 1, 1: 1 ...
6
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2answers
245 views

Pathfinding with inertia

I'm currently working for pathfinding for a game where units are moving, but they have inertia. Most typical pathfinding algorithms (A*, Djikastra, etc.) are simply designed to minimize the length of ...
4
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2answers
238 views

Algorithm for a smooth weather transitions in game weather system

I've been slowly learning c++ and building up a codebase intending to create a simple first person role playing game. I've coded a time management tool to track time elapsed in game, an inventory and ...
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1answer
128 views

Libgdx array of Vector2 closest point

I have an array of objects. Their position is a Vector2 (x, y). I want to select the closest object, given a (x, y) coordinate (that represents an user touch on screen). Searching on web I found a few ...
2
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3answers
109 views

Get algorithm (Chance-to-Hit) from Input and Output

I am currently working on a chance-to-hit formula for an rpg. It consists of the following parts: AttackSkill: The used Attribute of the Attacker (Range: 1-10) AttackBonus: A Modifier from ...
0
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1answer
128 views

Pathfinding Algorithms [closed]

I am new to game programming I currently am using unity's 2D power to remake an 2D game for sake of practice. So I am just little confuse about one thing, so far every enemy in my game was dumb(they ...
1
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2answers
568 views

What makes Minecraft so CPU intensive, and what could be done to improve it? [closed]

Recently I've been searching for VPSes that allow Minecraft servers to be hosted, and surprisingly very few do. Most allow for games - but Minecraft in specific is disallowed by many. Now it's fairly ...
7
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2answers
281 views

How to create a map from graph

I want to draw a 2d polygon map based on data provided by another source to ease analysing actions on the map. The data has the following format: 1 ['2', '4', '5', '7', '17', '10'] 2 ['1', '3', '4'] ...
14
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3answers
3k views

How to render infinite universe?

I'm curious what are the best practices in game development industry to render 3d universe? To be more specific: The data points are given and static. Each point has position, color and size; The ...
0
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1answer
60 views

How to calculate normal vector of a curve?

How I can calculate the normal vector for tow dimension curve (I have the points of the curve in plane x y)?
3
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3answers
531 views

Algorithm for dividing a 2D grid into organic looking plates

the title pretty much says it all: How could one go about segmenting a 2D grid into smaller parts? My goal here is to create tectonic plates for further procedural world generation Details to ...
3
votes
1answer
93 views

Placing an AABB close to a point so that it doesn't intersect any other AABBs

Give a 2D space with a bunch of non-intersecting AABBs, and a point in this space (that may or may not be inside an AABB), how can I find the closest place where I can place a new AABB of a given size?...
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1answer
53 views

Java libgdx get clicked square without iter

I would like to detect which square is clicked without iterating over all elements! i don't want to do this anymore for all elements. if( x >= this.getAnchorX()-HalfWidth && x <= ...
0
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2answers
465 views

Map Generation Algorithm [BOMBERMAN]

I'm looking for some wise tips concerning a specific game development : Bomberman-like. I am currently implementing a "random map" generation for the game, but I feel like I'm not doing in the best ...
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2answers
51 views

MiniMax strategy - What is the context of the numbers?

I've watched a new videos about the MiniMax concept and invariably the lecturer will say that the computer has 2 parties, Min and Max; Min always takes lower number and Max takes higher number. The ...
0
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2answers
381 views

finding a path from one point to another with obstacles help

Im building a tile based game and im implementing my path finding algorithm. Currently, it can find a path from point A to point B with no problems. However, if there are obstacles between point A and ...
3
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3answers
210 views

Getting one-point-collision object to conform to uneven terrain while keeping constant distance covered

This is probably best described by image: I have a character. For floor collision, it uses a single point (the red X). When the character moves, it conforms to the terrain; note how the blue line (...