Graph is an data structure for a set of objects where some pairs of the objects are connected by links.
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1answer
74 views
More Precise PathSmoothing
I'm reading a book about AI - Path planning and path smoothing. Yet this book is using c++ code. And i'm coding in c# with the XNA framework.
I have a path smoothing working, yet the book says it can ...
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votes
1answer
54 views
Path smoothing while path following
I can't find a nice way to do path smoothing while i'm following a path.
I have tried this piece of code but aparently it doesn't work as suspected.
The idea of how it should work is:
Edge 1 (the ...
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0answers
30 views
Random Facebook Friends Profile Pictures
I'm thinking of a new game for iOS. It's a social game that needs a random image generator with the images of your Facebook friends. My first question is: is this even possible? My second question is: ...
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votes
2answers
69 views
How can I test if a point is behind a polygon in 2D?
In order to improve the performance of my visibility graph generator I am trying to figure out the following.
Given the image below; is there a way to find out if a point is 'behind' the polygon? For ...
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0answers
42 views
Checking if two lines are crossing [duplicate]
How can I check if two lines (created with function love.graphics.line) are crossing themselves? I may use this ability to create procedural maps via graphs.
2
votes
1answer
56 views
How can I cut a graph representing 2D positions into two sub-graphs?
I have a graph where each node is associated with a 2D position. I would like to use a finite line to "cut" this graph into two halves, as shown below:
Note that the cutting line does have a ...
2
votes
0answers
81 views
Graph Isomorphism > What kind of Graph is this? [closed]
Essentially, this is a variation of Comparing Two Tree Structures, however I do not have "trees", but rather another type of graph.
I need to know what kind of Graph I have in order to figure out if ...
3
votes
1answer
183 views
Placing nodes in a graph in a random but readable way
I'd like to create a simple map from vertices and lines - you know, like a usual graph. A tree, to be precise.
To select the location of the next point that comes from one, I use a simple ...
5
votes
1answer
354 views
Delaunay triangulation. Where to start?
I'm trying to learn procedural generation technique's. Specifically for dungeons. I started off with a 2D array and I generate my rooms fine. Each room contains wall tiles as seen in the screenshot ...
5
votes
1answer
285 views
Triangulating a partially triangulated mesh (2D)
Referring to the above exhibits, this is the scenario I am working with:
starting with a planar graph (in my case, a 2D mesh) with a given triangulation, based on a certain criterion, the graph ...
2
votes
2answers
167 views
State propagation in modern OpenGL
When last I dabbled in game development, I managed my geometry in a tree. Every node would call the render method on it's children, prior to resetting it's transformations, thus allowing the ...
5
votes
1answer
234 views
A* for non grid network
For my specific case, I am trying to find a path finding implementation similar to what described here.
I could see reference implementation for A* and HPA*, but I wonder how to extend A* to simple ...
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votes
3answers
552 views
Integrating Scene Graphs and Physics Engines
For some specific reasons, i will have to use a graphic engine based on Scene Graphics with a Physic Engine without this concept.
I was thinking about a clear way to integrate both representation but ...
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vote
1answer
965 views
Moving sprites on a graph in libGDX
In my game I'd like to move sprites on a fixed path. Until this point I was trying to stick with the tools already provided by libGDX, like the Tiled map renderer classes so I'm looking for a solution ...
2
votes
2answers
110 views
Splitting Graph into distinct polygons in O(E) complexity
If you have seen my last question:
trapped inside a Graph : Find paths along edges that do not cross any edges
How do you split an entire graph into distinct shapes 'trapped' inside the graph(like ...
5
votes
1answer
127 views
trapped inside a Graph : Find paths along edges that do not cross any edges
This is a graph based platformer level and the round shapes are creatures.
I am looking for a path traveling along edges that does not cross other edges(To simulate the creature crawling on the ...
2
votes
2answers
828 views
Data structure for bubble shooter game
I'm starting to make a bubble shooter game for a mobile OS. Assume this is just the basic "three or more same-color bubbles that touch pop" and all bubbles that are separated from their group ...
4
votes
1answer
2k views
C# graph library to be used from Unity3D [closed]
I'm looking for a C# graph library to be used inside Unity3D script.
I'm not looking for pathfinding libraries (I know there are good one available).
I could consider using a path finding library ...
2
votes
1answer
154 views
Is finding graph minors without single node pinch points possible?
Is it possible to robustly find all the graph minors within an arbitrary node graph where the pinch points are generally not single nodes? I have read some other posts on here about how to break up ...
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votes
2answers
295 views
Partial recalculation of visibility on a 2D uniform grid
Problem
Imagine that we have a 2D uniform grid of dimensions N x N. For this grid we have also pre-computed a visibility look-up table, e.g. with DDA, which answers the boolean query is cell X visible ...
4
votes
1answer
603 views
Find sub-graphs in a graph
The initial problem I'm trying to solve is for pac-man, but of course there must be thousands of other situations with the same problem. I consider the pac-man grid to be a graph (two ways of doing ...
3
votes
1answer
480 views
Better data structure for a game like Bubble Witch
I'm implementing a bubble-witch-like game (http://www.king.com/games/puzzle-games/bubble-witch/), and I was thinking on what's the better way to store the "bubbles" and to work with. I thought of ...
10
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1answer
2k views
To scene graph or not to scene graph?
I've been struggling with a decision regarding whether or not to implement a scene graph in my game. I have some use cases that call for such a tool, but I haven't been able to get through some of the ...
5
votes
4answers
778 views
Dynamic Dijkstra
I need dynamic dijkstra algorithm that can update itself when edge's cost is changed without a full recalculation. Full recalculation is not an option.
I've tryed to "brew" my own implemantion with no ...
