The Guide to Implementing 2D Platformers - Game Programming
This article was written by Rodrigo Monteiro and originally published on his own blog at Higher-Order Fun and reprinted on our site (thanks to Rodrigo) in order to provide everyone with this great resource. Having previously been disappointed by the information available on the topic, this is my attempt at categorizing different ways to implement 2D platform games, list their strengths and weaknesses, and discuss some implementation details. The long-term goal is to make this an exhaustive and comprehensible guide to the implementation of 2D platform games. If you have any sort of feedback, correction, request, or addition – please leave it in the comments! Disclaimer: some of the information presented here comes from reverse engineering the behavior of the game, not from its code or programmers. I can think of four major ways in which a platform game can be implemented. Type #1: Tile-based (pure) Character movement is limited to tiles, so you can never stand halfway between two tiles.
Two-Tiered A* Pathfinding
In my main article, A* Pathfinding for Beginners, I described A* in very general terms, and described how to create a single all-purpose pathfinding function. Creating only one pathfinding function, however, can be needlessly limiting. Consider the following RPG situation, and a swordsman who wants to pathfind around a nearby wall: Given this kind of map, you could place nodes in a variety of ways, and use a variety of densities. In this graphic, the white nodes are walkable. As you can see, using this tightly packed node network, we can pathfind not only around the nearby wall but also between the wall and the nearby barrel in the process. Well, that is pretty cool in short-distance situations, but what do we do if we need to pathfind across the entire map? So let's look at an alternative. In this example, the nodes are in the center of the large isometric diamonds. This node network is 72 times less dense than the earlier one. Putting the Two Together So, which method do we choose?
The Big List Of Pixel Art Tutorials | PixelProspector - the indie goldmine
The Big List Of Pixel Art Tutorials On this list you will find a few links to pixel art related stuff…Update: All below mentioned tutorials can now be found on PixelArtus moreover there is also another big list about Drawing and Animation. Pixel Art Freelance Guide Pixel Art Freelance Guide (Adam “Atomic” Saltsman) Graphic Style Analysis Tutorials About Glowy Graphics
Game/AI: Fixing Pathfinding Once and For All
July 26, 2008 Fixing Pathfinding Once and For All I normally do everything I can to avoid saying things that could be interpreted as a criticism of other games or developers in the industry. But in this case, I had to make a bit of an exception. I need to talk about some problems we face with pathfinding. All of these clips were recorded over the last week with the latest, most-recently-patched version of each game. As you can see, we're still a long way from having robust pathfinding across the board ... and it's even a problem in some million-unit-selling, AAA-quality titles. It's not necessarily a universal problem. But there are still too many games that do pathfinding the same way that games did in the 1990s. (Note: The only reason you see lots of PC role-playing games here just comes down to convenience. To the best of my knowledge, most of these games use waypoint graphs for pathfinding. I believe waypoint graphs are now obsolete. But we're a multi-billion-dollar industry now. 1. 2.
algorithm - Path finding in hex grid based game
Math for Game Developers Video Series
I've launched a new Youtube series, Math for Game Developers. Each week I'll be showing how to solve a new problem in game development using math, and I'll be building up a math toolkit that you can use to solve any game dev problem. 1. Moving a character with vectors: 2. More moving characters: 3. 4. 5. This is very basic stuff, just showing the basics of vector maths, buteventually I'll be progressing to explaining the math behind moreadvanced things. I hope to help out people who are just starting their game dev career soplease let me know if I can improve the videos (other than the lowquality audio, a problem I'm working on) or if you didn't understandsomething
Divisor function
Divisor function σ 0 ( n ) up to n = 250 Sigma function σ 1 ( n ) up to n = 250 Sum of the squares of divisors, σ 2 ( n ), up to n = 250 Sum of cubes of divisors, σ 3 ( n ) up to n = 250 In mathematics , and specifically in number theory , a divisor function is an arithmetic function related to the divisors of an integer . When referred to as the divisor function, it counts the number of divisors of an integer . A related function is the divisor summatory function , which, as the name implies, is a sum over the divisor function. Definition [ edit ] The sum of positive divisors function σ x ( n ), for a real or complex number x , is defined as the sum of the x th powers of the positive divisors of n . where is shorthand for " d divides n ". The aliquot sum s(n) of n is the sum of the proper divisors (that is, the divisors excluding n itself, A001065 ), and equals σ 1 ( n ) − n ; the aliquot sequence of n is formed by repeatedly applying the aliquot sum function. Example [ edit ] is then odd. Then
KawaiiHannah: Pixel Tutorials
Adding the Frames Our step now is to create the document for the animation in the "Document" window. To do this, click on the File Menu and select "New". The left dialogue box will appear. To the right are my frames, ready to be pasted in separately. Now, select your first frame (in whatever program you've drawn it in) and "Copy" it (Ctrl+C / Edit->Copy). In GIMP, paste the frame in, by going to the Edit Menu, down to "Paste as" and across to "New Layer". That's our first frame. To remove the green and make it transparent, use the Magic Wand tool. Now you can add the remainder of your frames as new layers and make them transparent.
