@Element_105 @Newgrounds @infinite_ammo Whaaa that's awesome (Today)

RT @Newgrounds: DO NOT play this game! Unless you’re a fan of @kylepulver. t.co/TZzlEGJniL #throwbackthursday t.co/XMf883GSvS (Today)

@kenruze @NoelFB @ADAMATOMIC @infinite_ammo whoooaa interesting, I never knew what that was used for t.co/PgVox6brMm (Today)

@NoelFB @ADAMATOMIC @infinite_ammo Yeah, it's the same deal as arrays and stuff. Its really useful for structs too. (Today)

@ADAMATOMIC @NoelFB @infinite_ammo It's really really useful for just initializing lists and dictionaries with data in their declaration (Today)

@ADAMATOMIC @NoelFB @infinite_ammo how did you guys get by in C# without knowing about the { } initialization! SHIT IS SO CASH (Today)

@NoelFB oh man this is the best shit ever (Today)

RT @SteveSwink: Multiply tha hype @mattthorson @kylepulver @UndeadBarryGibb @Nay_HO t.co/LJ9lr5rLH3 (Today)

RT @sethkillian: Started playing the criminally unknown Aces Wild again + I'm still in love. Put down your animes and play it now! t… (Today)

@midio that HP is legit (Today)

RT @dannyBstyle: YO ask us more questions! my AMA buzz is fading let's keep this party rollin @NecroDancerGame t.co/0xXCzuvwER (Today)

@infinite_ammo @NightInTheWoods Scrooge McDuck always wins (Today)

@TheRiverMan_ Thanks! I appreciate it ;D (Today)

@jmsbrrt Yeah it's pretty much directly inspired from FP. One time I even used a flashpunk tutorial to figure something out in Otter haha (Today)

@jmsbrrt HEY THANKS! :D (Today)

Hey guys, this is crazy. I have *nothing* to do with any of this stuff. Someone randomly guessed my name because of a blurred out image. (Today)

RT @NoelFB: I want you all aware that Ludum Dare is in 2 days and it's going to be FANTASTIC as usual t.co/fhcxhMCECM and I really w… (Yesterday)

@frankcifaldi @BeeMickSee rip yoshi ;_; (Yesterday)

@AsherVo For my last jam game I just had a big coroutine and that seemed to make it slightly less painful. (Yesterday)

RT @MattThorson: TowerFall Ascension for PS4 was updated today with 9 new variants, fixed trophies, and much more :) t.co/8CiO2Zvn3G (Yesterday)

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posts tagged with: game jam

2014 - 8 - 19 / 5:30 pm / general

Dev Log: Game Jammin

Dev Log: Game Jammin

Over the weekend I went to a local game jam in Phoenix. I haven't jammed since November and this was another cool opportunity to put Otter to the test!

The game isn't quite ready for release, but here are a few screen shots of it for now:

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And you can see some of it in motion right here.

This jam I decided that I wanted to really limit myself in terms of art so I could spend more time on more stuff in the game. I wanted to restrict myself to a game boy palette, so my first thought was to go for a shader. I ended up getting a shader up and running really quickly that emulates sort of a game boy look. Here's the shader code:

#version 130
uniform sampler2D texture;
uniform sampler2D palette;
uniform float shift;
uniform float offset;

float rand(vec2 co){
return fract(sin(dot(co.xy ,vec2(12.9898,78.233))) * 43758.5453);
}

void main() {
vec2 pixpos = gl_TexCoord[0].xy;
vec4 pixcol = texture2D(texture, pixpos);

float gray = (pixcol.r + pixcol.g + pixcol.b) / 3;

gray = round(gray / 0.25) * 0.25;

gray += (rand(pixpos + offset) * 2 - 1) * 0.03;

pixcol = texture2D(palette, vec2(gray, shift));

gl_FragColor = pixcol * gl_Color;
}


The shader also does some extra stuff like randomly generates a very faint noise over the entire screen. I couldn't figure out how to make the noise scale with the screen though, so if you are playing with the screen scale at 2x or 4x or whatever the noise will still be every 1 pixel.

The shader also needs a palette to go with it that is passed in through the palette parameter. You can also shift the palette up and down on the texture. Here's the palette file I used:

Image

When the game starts it's using the palette from left to right on the very top of the image. The shift parameter in the shader can be used to read colors from anywhere on the y axis on the image, so if I want to make the game use the blue palette on the bottom I can set the shift to 1. (Texture coordinates are 0 to 1 in shader land.) The shader also reduces the amount of colors with some division and rounding.

The last thing I did to help out with the shader is add a full screen dither texture to the game. This is actually being rendered in the game and not in the shader. It's a very very faint texture of black and white pixels overlaid on the screen at an alpha of 10%. This will add a dithering look between all of the main colors of the palette. This idea was inspired by Dan Fessler's HD Index Painting tutorial. (Actually most of this shader was inspired by that tutorial!)

I think that covers everything with the shader. Hopefully soon I can release the game itself. Just need to fix some bugs and fix some sound issues first. I ended up getting awards in the technical, art, and design categories, and overall I got 2nd place at the jam which is pretty cool!

No Comments

2014 - 2 - 10 / 1:08 pm / otter

Flippy Flop Source

Flippy Flop Source

Yesterday I made a quick game called Flippy Flop using Otter. The whole thing only took me two hours or so, and the end result ended up being a relatively clean coded game.

I decided to add the Flippy Flop source code to the Otter source repository on BitBucket in the Examples folder. So now when you grab Otter you'll also get the source for the Otter Pong Game, and the amazing Flippy Flop.

Flippy Flop makes use of the EventRouter included in Otter. The EventRouter was originally authored by some smart Phoenix locals, and is used a lot in their Unity projects. Since it was just a C# implementation I grabbed and it stuck it in Otter. The EventRouter is all about following the Observer pattern. It can be a little weird to use at first, but I'm beginning to see the appeal of it.

(Disclaimer: There may be some bugs in the source for FlippyFlop. I didn't really check it over for memory leaks, which can easily pop up when using an Event system. If you don't make sure you're unsubscribing from events when objects are removed, or clearing the event router, you might find yourself in memory leak city.)

If you have any questions about Otter, or the source code of the game, check out the Otter forums or leave a comment below.

2 Comments

2014 - 2 - 9 / 8:42 pm / games

Flippy Flop

Flippy Flop

Apparently there's a game jam going down soon about a recent mobile game sensation. I had a few hours to spare today and I wasn't being productive on my big game, so I decided to whip something up in Otter.

Image

Download Flippy Flop 1.0 (Windows, 1.6mb)

Not really a game jam game, but more like a game doodle.

2 Comments

2013 - 11 - 18 / 1:23 pm / games

All the King's Men Update

All the King's Men Update

Just a quick update to All the King's Men to address some feedback and fix some bugs. The current version is now v1.1.

* Adjusted the camera zooming to zoom out in more situations.
* Made it so you can skip the intro by holding down Start.
* Changed explosions so that actors always get launched by them.
* Adjusted a lot of the rendering stuff to fix bugs that probably nobody noticed but me.
* Fixed bugs with adjusting the volume levels in the console.
* Fixed the King's death sequence which I broke before I released v1.0.

The download for All the King's Men is still located right here.

For more info on All the King's Men check out my original blog post about it.

No Comments

2013 - 11 - 14 / 7:06 pm / general

All the King's Men Time Lapse



Watch me make All the King's Men at lightning speed. 48 hours worth of screenshots compressed into just 4 minutes of footage. I only took one sleep break in the entire course of the 48 hours, so I was pretty loopy by the end of this.

I recommend watching at 1080p if you can!

All the King's Men was created using Otter, my 2d game making framework built in dotnet and SFML 2.1.

No Comments

2013 - 11 - 12 / 2:39 pm / games

All the King's Men

All the King's Men

Over the weekend I went to a local game jam in Phoenix to try out making a game using Otter. I was fully prepared to face the reality that Otter would have major problems preventing me from using it for this jam... but everything turned out way better than I expected. Check out the first game ever made using Otter!

Download
All the King's Men v1.0 - Windows (6mb)

Apologies to Mac and Linux people, I don't have a solid way to get builds for anything but Windows right now.

There's a readme included in the download that has some more info in it as well.

Screenshots
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What's Next
Eventually I would like to open source All the King's Men, but right now I need to figure out what kind of license I should use for it. Open sourcing a game is a little different than open sourcing a framework. I want to maintain control of the distribution of the game, but also allow people to look at and use the code for their own projects. Basically I just don't want people to edit the game slightly and then re-release it as their own work, or something sneaky like that. I'm sure whatever license I choose won't actually prevent that from happening if someone really wants to do that, but I guess I would still feel slightly better by using the right thing.

I also recorded a time lapse of the production of the game during the 48 hour game jam, so once I put that together I'll release that as well!

If you have any feedback then leave a comment, or stop over to the Otter forums.

12 Comments

about

About

Hi there, my name is Kyle, and I'm a 27 year old kid with adult powers. I'm making video games and living the indie game developer life in Tempe, Arizona. Here you will find my thoughts, games, websites, doodles, and other stuff like that. I worked on Snapshot, Offspring Fling, and a whole bunch of other games. I also created and maintain Otter, a 2d game making framework. If you want to get a hold of me use the form on the bottom of the page, leave a comment, or just tweet at me. I try to post three times a week. Thanks for stoppin' by! You're the coolest.

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