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Questions tagged [algorithm]

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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Representing a high-resolution deformable solid in 3D

I am currently working on a design that will incorporate an object that can change size and shape. For an example, I'll use a brick of clay. It starts out with normal dimensions of 1"x3"x6", but that ...
4
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2answers
431 views

How can I make a “paint” effect?

I am wondering how one could implement "paint" in games. As a reference, I have two games I am specifically thinking about which are Super Mario Sunshine with its "goo" and Splatoon. I'm wondering ...
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1answer
92 views

Implementation of A* Algorithm in a 3D Cube Array

I am working on making a program that finds the most efficient way to a goal from a starting point, with a few random debris set around. The entire thing is a 25x25x25 3d array of Cube objects, which ...
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2answers
258 views

Does anyone know what terrain generation algorithm is used here?

Does anyone know what this terrain generation algorithm is called? I saw it in two places. One was on YouTube, and the other, on Wikimedia.
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3answers
243 views

Creating a “world” for evolution of programs

I am trying to create a "world" where "copies of programs" are allowed to evolve, proliferate and fight for resources. Organisms copy information with errors and memorize the results. It seems like ...
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1answer
164 views

Turn Based AI Algorithm (Small Board, Two Steps)

This is my Game-Board: -> The Red Balls are the AI-Controlled Actors. -> The Blue Balls are the Player-Controlled Actors. -> The Yellow Cells are the locations, from which the Red Balls can attack. ->...
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2answers
362 views

How to get a smooth path for a vehicle in a 2D top down map?

I am making a 2D tile based game which involves having AI that needs to traverse the map avoiding obstacles in a natural and smooth path (NOT NECESSARY THE SHORTEST) The orientation of the vehicle is ...
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2answers
172 views

How to calculate building cost with production per hour?

I know that it may not detailed thread title but I will give more detail about my question. I'm working on a strategy game, and can't find a solution about building cost or training cost. I spent 1 ...
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2answers
3k views

How to find a safe path for an AI snake?

I have been working on a game in which a player can compete with a snake ai to get the most apples. The current path finding technique i use (A* Pathfinding) works fine. But I am struggling with ...
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2answers
92 views

Ball jumping algorithm

I'm still starting out anf i'm making a 2d game where a ball which jumps through different blocks. The ball jumps a fixed height when i place the blocks that the ball should dodge i place them ...
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0answers
115 views

Testing for connected maze cells

I'm currently in the middle of writing a game where there is a maze. The maze itself is already drawn ok, and once I have the layout I randomly rotate all the pieces. I have a 'start' cell that is a ...
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2answers
50 views

Calculate line intersecting most points, based on random points in a grid

I have been struggling with a math issue for a game I've been developing. I am in need to find the best starting and ending point for a straight line so that it intersects most of the circles (the ...
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1answer
45 views

Homing Fireball - Seiken Densetsu 3 style

I'd like to reproduce the fireball spell of Seiken Densetsu 3. The Fireballs don't follow the target directly, but encircle it more or less until they hit the target. I have no idea how to ...
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1answer
73 views

Best practices for simple physics?

looking for most optimized ways of handling simple physics. By "simple" I mean not more than 1-2 actions per object, and most algorithms are linear. For example, I have an UI element that implements ...
4
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2answers
1k views

Pathfinding in non-quantized space?

Pretty much whenever anyone thinks about pathfinding, they think about algorithms like A* and DFS - graph search algorithms, which also just so happen to work as pathfinding algorithms when you ...
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2answers
234 views

Strategies for using Dijkstra's Algorithm on “larger” (4096+ node) graphs (tower defense)

I am using Dijkstra's for pathfinding in my 2d game, my game is similiar in style to a tower defense game which has waves of monsters trying to reach a goal. I am currently building the paths while ...
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1answer
83 views

Simultaneous line of sight for hundreds of individual agents on a grid?

I have a large grid with hundreds of individual agents, each of which is moving around based on its own visual inputs and a fast control algorithm. My question is: How can I efficiently provide each ...
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3answers
585 views

How to make my Diamond-Square-algorithm less 'random'?

I'm currently writing a world generator for a Tilemap-Engine in C++. But there is a little problem concerning the Water to Land ratio. My DiamondSquare-class returns a field of random float-values ...
6
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1answer
152 views

render text inside countries

I have a map of the world and I want to place text on top of each country. The text can be anywhere from 0 to 1000 symbols long, and can often be changed. I'm looking for an algorithm to layout text ...
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0answers
580 views

“Solve” a game algorithmically — creating bots (and making them smart) [closed]

EDIT : at first I gave a lot of context for this question, explaining why I wanted to create a bot. I'm sorry it distracted people from my "actual" question. My question is pretty simple : how does ...
4
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1answer
192 views

how to create an outlined polygon with vector3 coordinates?

I have a set of vector3 coordinates and I use them to draw a polygon in another app, my question is: how can I calculate a second set of coordinates to make it look like the line is outlined. in ...
4
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2answers
92 views

Make a cell's content 'listens' to another cell (the closest cells)

I'm a newbie in programming and in java and I need some lights and help.I'm developing a game in which two players have to play with tokens (say red and blue) by placing them in cells (75x75 grid). ...
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1answer
397 views

How do I calculate hex coordinates from a ring and index?

I am trying to implement field of view (FOV) in a hex grid. I am using the cube coordinate system from here. Then, I am using shadow casting to find FOV as from here. I have a system like in the ...
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2answers
163 views

Best algorithm for different shapes maze

Based off my previous question here Maze or puzzle algorithm for something similar to noodles are there specific algorithms that would be best suited to building a maze with only 1 solution for A ...
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2answers
277 views

Calculate 8 different directional input based on arrow keys combinations

Considering I have four variables event binded to each arrow key, that can be 0 or ...
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1answer
1k views

C# Minesweeper - When cells with no mines nearby gets clicked

I'm currently making a Minesweeper in C#. I've already done the basics (generating minefield, rules and ui) but I don't know how I should implement when the user clicks a cell and the cell has no ...
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1answer
69 views

Word Puzzle: Less or more difficult [closed]

I'm working on an app which is a Word Puzzle. Player has to arrange about 10 words in correct order to solve it. I have two options to build it: Give user feedback (right or wrong) when he has put ...
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1answer
66 views

Maze algorithm with field counter

I am new to algorithms but currently creating a little game with the need for some. I have a 2d grid/board with a start and a finish field. Between those two fields are several platforms which can be ...
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2answers
75 views

Picking cells which form a completed line between to 2d grid cells

I'm using Bresenham's line algorithm to calculate a "line" of cells between a start and end point on a 2D tile grid. However, I'm using this during terrain generation to create a visible pathway, ...
4
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1answer
568 views

How to generate Bayer matrix of arbitrary size?

In ordered dithering Bayer matrix is used. How is that matrix generated? What algorithm can be used to generate matrix of arbitrary size?
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1answer
119 views

Better streaming economy algorithm?

Does anyone here have experience making games with streaming economies? I am working on a game and am looking for a better way to handle the economy. I feel like there must be a better algorithm than ...
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0answers
317 views

Path finding algorithm for (x,y) coordinates in c++ [duplicate]

I am trying to code a path finding function in c++ . It should work like that, you supply the start point (x1,y1) and the end point(x2,y2) and it returns a list of points for the shortest path. ...
7
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1answer
4k views

What is the fastest algorithm to check if two cubes intersect (where the cubes are not axis aligned)?

I am looking for an algorithm to check if two cubes intersect. One can check if each of the 6 faces of cube A are intersected by each of 12 edges of cube B, but that is 72 checks. I've heard there is ...
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1answer
274 views

How does Hierarchical Pathfinding deal with obstructions in the same chunk?

Aigamedev.com provides this visualization of HPA*: All the nodes within the same chunk connect to each other. What if there was an obstruction between nodes in the same chunk? For example: What ...
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2answers
169 views

Board Game Pathfinding - Finding optimum valid path with limited path distance?

I'm building the very earliest stages of piece movement in a digital board game I'm planning to make. It's a browser based javascript system. Basically the players roll to move and need to traverse ...
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2answers
583 views

How is structural analysis done in games (e.g.: bridge building, Dig or Die, and 3D)?

From what I understand a typical interactive truss system would need substantial calculations since every component affects the entire system. I think you could arbitrarily stop at a given number of ...
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6answers
424 views

Computing chance of winning when dealing with fuzzy numbers

Computing chance of winning in a one player and one enemy battle when using fixed numbers is quite easy; for example if we have these numbers: Player : Attack : 5 - Health : 30 - Attack Interval : ...
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2answers
92 views

Given a grid system where some coordinates are marked as impassable, how to find natural-looking car driving path between two locations?

I can compute an A* path, but I get only cardinal directions from that. A 45˚ path would look like "up 1 left 1 up 1 left 1 up 1 left 1..." My specific question is, given a grid with a pathing ...
11
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1answer
1k views

Algorithm for “healing” multiple rectangles into a smaller number of rectangles?

Say I have a grid of rectangles of different shapes and colors and I want to reduce (reasonably close to optimal is fine, optimal is not necessary) the number of rectangles to represent the same ...
2
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1answer
158 views

Zobrist Hashing equivalent for Simple Knights Game with only 1 unique piece

I looked over the Zobrist hashing function used for getting a unique hash id of the board state in a chess game. https://en.wikipedia.org/wiki/Zobrist_hashing Martin Fierz explains it very well in ...
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2answers
368 views

How to calculate area to fill in this Snake/Qix game variant?

I have a game which is a Snake/Qix variant. The player controls a line which is moving on an island. Player has possibility to leave the island in order to connect that island to itself. Once the ...
2
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1answer
132 views

How to stop diagonally in an event driven input system?

Example scenario: Assume 2 dimensional top down movement system. Given that I have 4 directional keys ( UP / DOWN / LEFT / RIGHT ), I am able to move in 8 different directions 4 perpendicular and 4 ...
0
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1answer
107 views

How to optimize against wealth loss?

The wealth system in d20 Modern always gives me a slight headache at character creation, because I know there's a better way to buy things, but I don't know exactly how, so I'm coming up with an ...
0
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1answer
47 views

How to calculate random new position base on original position on map

I am making a 2D game with HTML5 Canvas. The game has several shapes and I want them to move all over the map randomly. However, if I just give them a constant angle to follow, they will all ...
3
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2answers
187 views

What algorithm can I use for handling two types of HP, one of which may be undefined?

In my game, each unit has two types of HP: Hard and Soft. Soft represents the human part of the unit, while hard represents anything mechanical. For example, a regular rifleman would have 100 softHP, ...
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vote
1answer
358 views

How to get connected tiles in hexagonal grid system

I've been developing a game where a number of tiles can drag into a hexagonal grid background. For some purpose I need to find the location of same tiles into an array and merge them. Data Layer: ...
2
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0answers
571 views

Z-order curve — how to query all nearest neighbors?

TLDR: How to query all nearest neighbors with the least effort? (Iterating over a bigger neighboring area that's continuous and filtering out elements that are not immediate neighbors?) Suppose the ...
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2answers
385 views

Level of detail for the map of stars

I have a large list of points (millions) in 2d. Let's say it's a star map. Each star has a radius and position in space. I want to render this map at different level of details. From a single star to ...
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0answers
117 views

Algorithm for 2d AI aiming to compensate for gravity [duplicate]

In a 2d side-view scenario I have two riflemen aiming at each other. By normalizing the x and y difference they know the direct path to the enemy. However, gravity will pull the projectiles downwards,...
3
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2answers
199 views

Delay when moving elements

How you can see my mouse goes little bit faster than widget. My movement algorithm is: ...