Category Archives: Platform game

2D polygonal collision-detection and internal edges

Posted on October 31, 2012 by Paul Firth

Hi and welcome back to my blog! I wanted to share something I’ve recently discovered about the heinous problem of internal edges in 2D polygonal collision detection. It’s not a full-solution, but maybe it will give some other programmers an … Continue reading →

Posted in Collision Detection, Geometry, Polygons, Technical | Tagged , , , | 11 Comments

Composing in-game music – retro style

Posted on May 15, 2012 by Paul Firth

Hello, and welcome back to my blog! Its time for another guest post – I commissioned this one after a very long search to find an artist talented enough and with the right skill-set for composing in game music in … Continue reading →

Posted in Chip tunes, Music, Platform game, Technical | Tagged , , , | 6 Comments

The physics of rolling

Posted on April 2, 2012 by Paul Firth

Hello and welcome back to my blog! This time I’m going to talk about the physics behind simulating a rolling circle, Super Monkey Ball style but in 2d. The key The key to making this work is understanding how we … Continue reading →

Posted in AS3, Circles, Collision Detection, Geometry, Physics, Technical | Tagged , , , , , | 10 Comments

Designing a retro pixel-art tile-set

Posted on March 1, 2012 by Paul Firth

Hello and welcome back to my blog! This time something a little different – I commissioned a guest post about designing a tile-set from a studio who specialise in pixel-art. After searching long and hard to find exactly the right … Continue reading →

Posted in AS3, Graphics, Platform game, Stencyl, Technical | Tagged , , , , , | 18 Comments

How to make a 2d Platform Game – part 3 ladders and AI

Posted on December 20, 2011 by Paul Firth

Hello and welcome back to my blog! This is part 3 in a series of articles where I talk about how to go about making a 2d platform game like this one: Click the game to give it focus… Apologies … Continue reading →

Posted in AS3, Ladders and AI, Platform game, Technical | Tagged , , , , , , | 13 Comments

How to make a 2d platform game – part 2 collision detection

Posted on December 14, 2011 by Paul Firth

Hello and welcome back to my blog! In this series of articles, I’m talking about the technology behind a platform game. If you missed part 1 you can check it out here. The language is actionscript 3.0, but the techniques … Continue reading →

Posted in AS3, Collision Detection, Platform game, Technical | Tagged , , , , , , , , , | 26 Comments

How to make a 2d Platform Game – part 1

Posted on December 11, 2011 by Paul Firth

Hello, and welcome back to my blog! Its been a long time coming, but finally I’ve managed to get some time to work on the blog again… In this first instalment of a series blog articles, I’m going to be … Continue reading →

Posted in AS3, Parallax and Tiles, Platform game, Technical | Tagged , , , , | 59 Comments