Questions tagged [hexagonal-grid]
A regular tesselation of a surface where regular hexagons are used for grid tiling.
94 questions
0
votes
3
answers
573
views
How to use a Shader Graph to layer a texture over a sprite without being affected by the sprite's alpha?
I have a hexagon sprite MainTex over which I want to render an outline texture SecondaryTex independent of the alpha value of the MainTex. Since I have a fairly large grid with many hexagons, two ...
- 45
0
votes
1
answer
131
views
How to calculate the border hexagons in a grid with blocking elements?
I have a hexagon grid with cubic coordinates. I want to calculate clockwise all border hexagons for a given movement range. At the moment, I am iterating every neighbor that is not in the range and is ...
- 45
4
votes
1
answer
595
views
Find a encircliement in Hexagonal grid (optimization issue)
I have a hex grid of 10000 cells (100x100). The player can grab a cell next to one of his cells (borders). If the player has formed a ring after placing a cell, I want to get a list of cells that ...
1
vote
0
answers
148
views
Improve performance of hexagonal tiles
I am trying to create a game similar to a board game on a hexagonal grid (also similar to Civilization game).
I want the tiles to be able to display various textures and of course be able to detect ...
- 355
0
votes
1
answer
994
views
Which way to subdivide a hex grid?
Here are, it seems, two ways to draw a smaller grid of tiles from an initial hexagon:
On the left, we halve the side length \$s\$ and create most of the new tiles centered at the midpoint of sides. ...
- 101
0
votes
1
answer
1k
views
Placing rectangular outlines on a hexagonal grid
I'm prototyping a base-building game that uses a hex grid as the basic structure. Hex grids have benefits, but when humans want to build buildings or divide up space, they usually use square/...
0
votes
2
answers
437
views
How to find words on a hex grid
I am trying to make a hex grid based word game. Currently the words are placed from a list of pre-defined words(a list of animals in this case). All colored cells make a word that was placed, while ...
0
votes
1
answer
432
views
Struggling with breadth first search for hex grid
I cant seem to get breadth first search right. Ive gone through redblobs implementation guides of hex grids and have that all figured out but pathfinding is proving to be difficult.
So I have a search ...
- 103
2
votes
2
answers
602
views
Finding nearby tile objects with a certain tag more easily
I have generated a grid with hex tiles. I am using two different types of tiles and would like to at some points ask the tiles, how many tiles of each type they have as neighbours (or really, it would ...
- 21
0
votes
1
answer
453
views
Best ways to navigate a single step on a hexagonal grid depending on input
Problem
In my puzzle game, the player moves one step at a time on a hexagonal grid. (Not an action game.)
The sequence of steps is important for the gameplay, so it is not only about getting from A ...
- 101
2
votes
1
answer
701
views
Formula for attack range using hexagons
I need a little help with a formula to calculate the attack range for my turn-based strat game. Since it's a hexagon grid, I'm having trouble coming up with a formula that would pick the character ...
- 21
4
votes
3
answers
445
views
Elegantly transition from 4-grid to 6-grid and back
I find in general map creation that I prefer hex grids for natural environments, but square grids for interior and urban/constructed environments.
Is there a smooth or elegant way to transition ...
- 842
0
votes
2
answers
258
views
Touch control pan 3D map
I'm working on recreating the board game "Hex" as a mobile game. I'm working on implementing zoom and pan features using two fingers. I feel like I managed to get the zoom to work, but the ...
6
votes
3
answers
4k
views
How do I sort edge tiles for a hex grid in order to draw a border?
I am trying to sort the edge tiles of a region in my hexagon map. Once it is properly sorted, I can then try to walk through them and attempt at creating a Civ style border map, but I can't seem to ...
- 339
7
votes
1
answer
1k
views
How can I create a six sided tillable perlin noise image?
I'm attempting to create a tillable hex shaped terrain map using c++.
As part of the process I'd like to use perlin noise, but it seems that in order to make it tillable I'll need to generate it 5 ...
- 103
1
vote
1
answer
315
views
Finding equivalent axial coordinates for a wrapping hexagonal map of radius n
I'm creating a wrap around hexagonal map that will potentially render infinatly.
With the method I'm using, I have an x-y coordinate I use to find it's equivalent axial coordinate with the equations:
...
- 103
1
vote
1
answer
823
views
Why does my tile palette not arrange nicely?
I made my own Hex Point Top Tile sprite sheet, ensuring it's pixel perfect and align well. Slicing in Sprite Editor has no problem too. However, when I drag the sprite sheet to a new Palette in the ...
- 141
3
votes
4
answers
974
views
How to sub-divide a hexagonal grid reference system
I have been using @amitp's excellent guide (and javascript library) to create a hexagonal grid system https://www.redblobgames.com/grids/hexagons/. I'm using flat-top, inverse-y cubic/axial system. ...
0
votes
2
answers
479
views
Calculate size of hexagonal map libgdx
I have a staggered hexagonal map created with "tiled" map editor and I want to calculate the height of this map in pixels, the example map below should be ...
- 173
13
votes
6
answers
5k
views
Efficient Algorithm for the boundary of a set of tiles
I have a grid of tiles of a known finite size that forms a map. Some of the tiles inside the map are put into a set known as a territory. This territory is connected, but nothing is known about its ...
- 318
4
votes
1
answer
770
views
How to efficiently (no pointers) store hex grid with shared edges and vertices?
I have a hex grid stored in a 2d array; now I want to add some properties to the edges of the grid (e.g. rivers between hexes) and also potentially to the vertices.
How can I store edges and vertices
...
- 141
0
votes
1
answer
163
views
Generate a HexMap where each tile has a different tile on each edge
I’m trying to generate a 7*13 hexmap, with 9 different types of tiles, numbered 0 through 8. I need the map to be randomly generated on each run and it has to be so that each tile has a different ...
1
vote
1
answer
605
views
How can I seamlessly animate textures across tiles like in Civilization 6?
I am trying to make a much simpler version of the graphic effects we see in the game Civilization 6. This question applies to the graphics on land and ocean tiles. But I first noticed this effect on ...
- 1,417
1
vote
2
answers
832
views
Find hexes on a hex grid given an angle
I'm trying to find an elegant solution to calculating the x, y values of hexes that are crossed or intersected by a line or ray at a given angle from a given hex position on a hex grid. I do not want ...
- 111
1
vote
1
answer
227
views
Looking for a square-to-hex pixel coords algorithm
So as the headline suggests, I am looking for an algorithm/algorithms used for square-to-hex and hex-to-square pixel coordinates convertion.
I have an image which looks kinda "interpolated", meaning ...
- 15
1
vote
1
answer
2k
views
How to convert game object world position to hex grid cell coordinates?
I have a hex grid and a game object, let's say it's the player. What I want to do is know on which cell the player is on based on his world position, this would be easy on a simple grid but on a hex ...
- 117
2
votes
1
answer
2k
views
Finding all hexagonal grid coordinates inside cover arc
I got a turret that points at the corner of hexagon (point A). It can shoot in cover arc that's shown here:
I need to check if my target lies within this cover arc.
From this tutorial: Hexagonal ...
- 25
1
vote
1
answer
426
views
Subdivided Icosahedron Hex/Pent grid efficient rendering?
How to performantly display a hex/pent grid on a subdivided icosahedron?
I have a subdivided icosahedron planet used as the "board" for a strategy game. It usually has anywhere between a few thousand ...
- 474
0
votes
1
answer
131
views
Get range of hexagon based on specified center
I have this method to get the cells inside a given N range:
...
- 197
0
votes
1
answer
374
views
Finding cells within range on a hexagonal grid
I'm looking for a way to get the cells based on a N range. But no luck.
I'm converting Row Column offset to Cube Coordinate system QR -> XYZ
...
- 197
3
votes
1
answer
234
views
Place hexagons together
Just made it with some more investigation thanks to this site: Hexagonal grid math, but the hexagons have a little bit spacing horizontally.
Here is the code:
...
- 197
4
votes
0
answers
331
views
Magnitude of a vector in Generalized Balanced Ternary?
Generalized Balanced Ternary is a fairly obscure but very elegant method of indexing a hex grid, using only a single integer coordinate. Operations like addition and multiplication on these ...
- 161
3
votes
1
answer
817
views
Algorithm to determine all hexagons within an arc from a starting hexagon
I have a game engine which handles hexagon based war games and things like LOS, etc, for both flat and tip up hexes. A particular game I'm implementing at the moment, Band of Brothers, has facing for ...
- 31
2
votes
0
answers
180
views
Generating vertices for group of hexagons
I'm working on the map editor of a game, where you can create a grid of hexagons to paint. An example of a grid of radius 6:
What I want
Once map creation is done, I would like to generate a mesh for ...
- 1,031
4
votes
3
answers
6k
views
Creating a hexagonal wraparound map
I'm trying to create a wraparound map for a hexagonal map, so when you exit a tile on one side of the big hexagon-shaped map, you enter a tile on the other side.
Example image from Red Blob Games ...
- 153
2
votes
2
answers
2k
views
SDL_RenderDrawLines isn't drawing complete geometry
So I am trying to draw hexagons with [SDL_RenderDrawLines][]. It looks to be working fairly well, however, it fails to draw some of the lines.
So each of the ...
- 135
1
vote
0
answers
394
views
hexagonal grid Mouse over
I've been trying to workout the code that calculates the correct row and column in the mouse is over event the following is the code I'm using to draw the grid Tile are 64x64.
...
3
votes
1
answer
2k
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 ...
- 175
3
votes
0
answers
293
views
Batch z-ordering problem in Cocos2d (Python)
I have a weird problem with my hexmap drawing code.
My code uses "squished" hexagons to achieve a pseudo-isometric view. Because of that, the order of drawing them on screen matters a lot.
...
2
votes
2
answers
239
views
Moving a continue condition into the for loop produced something NOT logically equivalent?
I'm setting up a hex grid. The column/row system I use puts 0, 0 as the top left corner, and increasing columns (x) moves to the right but also vertically upwards. So columns run straight up and down, ...
- 348
1
vote
1
answer
1k
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:
...
- 33
7
votes
2
answers
5k
views
How to orient a hexagonal tile on a geodesic sphere (Goldberg polyhedron)?
I've recently ported the hexasphere implementation by Rob Scanlon at https://github.com/arscan/hexasphere.js to objective-c for use in a project I'm exploring.
As a port, it works very well, and I ...
- 225
3
votes
2
answers
918
views
How can I detect hex edges and corners for Catan map?
The following messy code implements a decent hex map, but I have no way to detect edges and corners:
...
- 31
6
votes
2
answers
1k
views
Are there definitive, unambiguous terms for hexagon tile orientations?
I have been working on a tile map editor and plan to support two orientations for hexagons. I have seen various terms used, but these all seem ambiguous to me.
Horizontal, Vertical (ambiguous: does ...
- 163
3
votes
3
answers
602
views
What is the easiest way to move towards and along the edge on a hex grid?
I have a hexagonal grid with variable radius. My entity can move exactly two hexes per turn.
How should I calculate next step towards border and afterwards travelling clockwise around map?
Preferred ...
- 153
9
votes
2
answers
2k
views
Finding cells within range on hexagonal grid
First up - I know I'm being super-dense here.
With that out of the way, I'm trying to write a C# implementation of this algorithm:
...
- 225
3
votes
1
answer
145
views
Preferred option for indicating player's movement choices on a hexagonal grid on touch [closed]
I'm building a prototype turn-based game and I'm considering the best approach for user interaction with the game board. It's a hexagonal grid, where the user can select units and move to other cells ...
- 225
3
votes
1
answer
510
views
Coordinate system for a strategy game
I am working on a personal project of developing a simple 3D strategy game. I am working on my own game engine (let's assume that I have to have my own) and I have one theoretical question. How to ...
- 33
1
vote
0
answers
173
views
Hexagonal tilemap is being distorted
So I made a hexagonal tilemap of ocean tiles and then picked a few tiles to be land. When I pick all adjacent tiles to the hexagon it usually works, but for tiles that are on certain columns it does ...
2
votes
0
answers
635
views
Hex axial coordinates to table coordinates conversion
I am developing a browser game based on a hex map. I am storing my data based on axial coordinates system.
I developed a function which shows me axial coordinates of hexes within ...
- 173