Salomonsson.se
Feb 19 2020

Generating a BSP dungeon

All right, in order to start doing something cool I need a to navigate in. RougeBasin to the rescue! They have a really cool tutorial on a BSP dungeon (Binary Space Partitioning, simply put: a node tree where every node has two child nodes). Link here

First step: Create a child node of the entire area. Then randomly split it vertically or horisonatlly (offset the split by a random amount) and add the two inner segments as childnodes. Then repeat for each child node.

Second step: Take all the leaf nodes, shrink them a bit and move them around by some random amount.

Third step: Draw a corridor between every sibling node. Then move up to the parent node and draw a corridor between those siblings. This picture only has corridors on it's outmost leafs.

Fourth step (cheat): Turns out that connecting the parent nodes are a real hassle! In order to keep any kind of speed I did a cheat and drew corridors through the center of each sibling node. As long as I don't offset any room beyond the center coordinate the corridor will pass through a room.

This was fun, but getting step 4 up and running took way too much time. You don't want to lose too much momentum when dealing with hobby projects like these, and this is good enough for me to continue with the next exciting step!

Jan 19 2020

Scrolling camera

Got a scrolling camera to work in tonights short session, showing a part of a bigger underlying map. Next up:

  1. Generate Dungeon
  2. Shadow casting/field of view
Jan 18 2020

Pew pew pew. Part 5

Really quick dev today. Added a fourth shiptype that bursts out a ton of bullets. I have a good initial setup now! Time to start on spawning them in sequence.

Jan 10 2020

AsciiBrain2

Today, by chance, I stumbled upon the free tileset section on Itch.io (https://itch.io/game-assets/free/tag-pixel-art), and I instantly fell in love with so many of them! I'm usually not a big fan of using random peoples stuff, but I think this made me change my mind!

I downloaded a few and started playing around with one of them, making ireggular semi-topdown floor tiles. I could easily integrate them since this is not a console at all, but a regular window I draw bitmap fonts into. Easy peasy!

But the very reason I started with this in ascii was to NOT having to bother with graphics… so even though it looks realy nice, it will have to wait for another project.

Jan 07 2020

Pew pew pew. Part 4

Some more progress, this little VR prototype is going in the right direction indeed!

I needed a way to distinguish the different enemy types, so I just pasted different Trump faces on the cube. Consider it placeholder graphics (even if it is kind of funny) =D

Jan 03 2020

Pew pew pepw. Part3

The controls did not “feel” right. Has been working on improving them for a couple of evenings now. Great improvement even if there are still some work to be done.

Dec 28 2019

AsciiBrain 1

Bought myself a new hobby gamedev laptop. It's really small, and really neat. And kind of weak… So I needed a project that it could handle.

After trying haxe it was clear that compiling haxeflixel was painfully slow. If I did it directly in c++ instead it worked like a charm.

So c++ project it is! Using SDL and the base from my Ludum Dare code base. Got a dude moving and placing blocks. Good first progress =)

Dec 09 2019

Pew pew pew. Part 2

Replaced the player ship with free model from asset store since the cube looked too horrible, even for me. Replaced player bullets with laser beams.

In this gif it's hard to distinguish bullets from enemies…

Nov 26 2019

Space shooter prototype in VR, part 1

Got an Oculus Quest a few months back. Love the device, but I'm not overly enthusiastic about the games you can buy. Not to mention that they are very expensive!

So I started writing a small game of my own. A little space shooter/bullet hell with fast, arcade-like gameplay inspired by games like Geometry Wars.

This is the very first progress. Only an hour into the project… good progress for such rapid prototyping. Lots left to do (obviously).

Nov 24 2019

Drawing an enemy animation...

Wanted to do a test to see how fast I could draw an animation for a game, to see if it ever would be worth producing. The answer is an astounding NO. This super simple animation took an entire evening.

Still funny enough to post though. Would you play a game with this kind of graphics?

Sep 24 2019

Starting out with C++ and SDL

I've spent some time trying to port my text engine to linux and mac, with the following results:

  • On Linux (also valid on Mac) I cannot detect keyUp. “Fixed” it by gimping the game a bit on those platforms…
  • On OSX I cannot set colors correctly! The exact same sourcecode that works on Linux turns into dark blue text on semi dark blue background. Unreadalbe.

So I have abandoned that path for now. Instead started looking into the SDL library instead… and it is really smooth to work with! (at least on Linux). I have currently managed to get it to work on both Linux and Windows!

I can even work with this code on my old, very beloved, Asus EEE 1005PE netbook. A ten year old 10.1” computer that freezes if it tries to open any random webpage (Gmail? Just forget about even trying), however it has a whooping 250gb harddrive, a keyboard like a dream and a battery that lasts for an eternity. Writing C++ code in VIM (in a terminal window) works like a charm… like in the 70's ;-) Compilation is around 1-2 seconds, which is not only acceptable, but also faster than Unity compiles on my powerhorse workstation.

This looks very promising for the upcoming Ludum Dare competition!

Sep 16 2018

Fight The System

This evening I managed to render tiles from an old Ripple Tilesheet to a runtime generated mesh, using a custom shader to map the tile values.

It does not scroll yet, but supports rescaling the viewport (although only to even pixels in height).

Apr 19 2018

Cpp text console application, part 3

Now writing to bufferes and writing those to the output. Writer class that prints text character by character and interprets simple commands (right now only newlines and changes in speed and pauses). Two days left to Ludum Dare.

Tutorial that describes pretty much exactly what I'm playing around with

http://cecilsunkure.blogspot.se/2011/11/windows-console-game-writing-to-console.html

Good to keep as reference!

https://github.com/Tommislav/cppTextEngine/commit/1110c6c53b7abb51c5c5a34364d7f450046d8c35

Mar 15 2018

Cpp text console application, part 2

More fun with your terminal:

  • Colors
  • Write character at position

So far I'm surprised by the speed (the delay you see is actually me pausing the thread)! The last time I tried stuff like this directly in the terminal it flickered like hell. But that time I was using conio.h, this time I write stuff myself using only windows.h.

I'm not using buffers yet, only moving cursor and writing to that position. Guess writing to buffers will make it even faster. But thats for another day…

Feb 11 2018

Cpp text console application

Ok, for the first time in a long while I got two hours that I could spend on programming! Need to refresh my c++ knowledge quite a bit (the metro siberia part below uses OpenFrameworks to do all the heavy work for me). But in these two hours I still managed to:

  1. Create a makefile (my very first one)
  2. Code a small console application in VIM (and compile it using :make)
  3. Have the program print out text letter-by-letter
  4. Read the content of the text from an external text file
  5. Store config flags, such as speed or pause in the text document

Not very exciting, and now the time is up. Time to hit the bed. Felt good to do some programming anyways.