MERCury - 2d Game Engine

[SHC]

@wesley.laferriere
If you have access to windows, installing Ext2Fsd driver enables you to see linux hard disks from windows.

[wessles]

Well everyone, it took quite a bit, and a lot of effort, but I finished the next version. I have a very primitive sprite batcher and some better geometry. There is also better sound support, and in general the framework has been cleaned up and is pretty good for use (I think? Reply your thoughts!). This was my first attempt at this 'sprite batching' badilla, but It seems to be worth it. Tell me if I am mistaken at any parts.

What should I add next? Bugs? Criticisms?
Thanks for trying, and have a wonderful day!

EDIT:
Oh, and I added in a TextureFactory for those of you that like to use one image for all sprites .

[opiop65]

Eh, I would test it out but I don't feel like downloading tiny sound... Maybe later I'll take a look at it and tell you what I think! I downloaded the actually library though.

Games published by our own members! Check 'em out!

[wessles]

Added in some javadoc!

[Agro]

why dont you use the newer javadoc version? this is the old one

[SHC]

Better use JavaDoc 7

[saucymeatman]

Hey wes,
Check your email!

[opiop65]

Hey wes,
Check your email!

You really couldn't of just sent him a message?

[wessles]

Okay, I just added in some Ellipses and Circles and their corresponding Graphics methods. I will soon add in intersections to the geometry package.
Also, soon people may want a camera class. That will come soon!

Finally, can anyone more 'GLSL inclined' try to test out all of the Shader capabilities? I just scratch my head at that stuff...

Please, give me some more recommendations?
Do not restrain yourself at all! Tell me everything you want here!
I am running purely off of what YOU want!

Thanks a million!

-wes
(jk, I would never add that line at the end of everything. That is for cargo-pants nerds! I, however am a basement dweller!)

[opiop65]

A camera is a must with practically any good graphics library.

Games published by our own members! Check 'em out!

[wessles]

I personally have never used a library with one (mostly b/c stubborn me won't use any libraries!). Any features you would like in them?

[opiop65]

Scaling, positioning, rotation control over all the low level features like the matrices. Frustum culling and hmmm... I'll think of other stuff!

[wessles]

Was working on the camera, but got stumped (its coming, but not tonight  )... So I decided to get funky! I am starting work on a 'Far-Out' demo that will be a dancing game. Here is the earliest version (no interaction, but some 'fab' tunes!), 'To The Max!'

Thank you, and i'll be sure to Catch You All On The Flip~Side!

[opiop65]

Well, I tried to play your game but I received this error:

1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19

Exception in thread "main" java.lang.UnsatisfiedLinkError: no lwjgl in java.libr ary.path         at java.lang.ClassLoader.loadLibrary(Unknown Source)         at java.lang.Runtime.loadLibrary0(Unknown Source)         at java.lang.System.loadLibrary(Unknown Source)         at org.lwjgl.Sys$1.run(Sys.java:73)         at java.security.AccessController.doPrivileged(Native Method)         at org.lwjgl.Sys.doLoadLibrary(Sys.java:66)         at org.lwjgl.Sys.loadLibrary(Sys.java:95)         at org.lwjgl.Sys.<clinit>(Sys.java:112)         at org.lwjgl.opengl.Display.<clinit>(Display.java:135)         at com.wessles.MERCury.Core.initDisplay(Core.java:64)         at com.wessles.MERCury.Runner.boot(Runner.java:40)         at com.wessles.MERCury.Core.<init>(Core.java:39)         at com.wessles.MERCury.Core.<init>(Core.java:35)         at com.wessles.MERCury.Core.<init>(Core.java:31)         at com.wessles.MERCury.Core.<init>(Core.java:27)         at com.wessles.MERCury.demos.jump.Jump.<init>(Jump.java:27)         at com.wessles.MERCury.demos.jump.Jump.main(Jump.java:86)

That's unfortunate as I wanted to see what your library is capable of :/

Edit:
Did you only compile your game for Linux? The error is just saying it can't find the natives. I'm running windows, so that's why.

[wessles]

There. It should work now  .

EDIT:
Oh, and don't really expect to

see what your library is capable of :/

This is just a simple thing I threw together. Probably will be a dancing simple dancing game or something... But thanks for the enthusiasm!

[opiop65]

Sorry, but I have another error, I think you're not handling the actual paths correctly to your resources!

1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   16   17   18   19   20   21   22   23   24

java.io.FileNotFoundException: res\backdrop.png (The system cannot find the path  specified)         at java.io.FileInputStream.open(Native Method)         at java.io.FileInputStream.<init>(Unknown Source)         at java.io.FileInputStream.<init>(Unknown Source)         at com.wessles.MERCury.opengl.Texture.loadTexture(Texture.java:99)         at com.wessles.MERCury.opengl.Texture.loadTexture(Texture.java:75)         at com.wessles.MERCury.demos.jump.Jump.init(Jump.java:36)         at com.wessles.MERCury.Runner.boot(Runner.java:43)         at com.wessles.MERCury.Core.<init>(Core.java:39)         at com.wessles.MERCury.Core.<init>(Core.java:35)         at com.wessles.MERCury.Core.<init>(Core.java:31)         at com.wessles.MERCury.Core.<init>(Core.java:27)         at com.wessles.MERCury.demos.jump.Jump.<init>(Jump.java:27)         at com.wessles.MERCury.demos.jump.Jump.main(Jump.java:86) Exception in thread "main" java.lang.NullPointerException         at com.wessles.MERCury.demos.jump.Jump.init(Jump.java:47)         at com.wessles.MERCury.Runner.boot(Runner.java:43)         at com.wessles.MERCury.Core.<init>(Core.java:39)         at com.wessles.MERCury.Core.<init>(Core.java:35)         at com.wessles.MERCury.Core.<init>(Core.java:31)         at com.wessles.MERCury.Core.<init>(Core.java:27)         at com.wessles.MERCury.demos.jump.Jump.<init>(Jump.java:27)         at com.wessles.MERCury.demos.jump.Jump.main(Jump.java:86)

Edit: Oh its fine if the game isn't all that awesome, I just want to see what you can do with your library! I'm currently working on my own for a special project

[wessles]

Aha!! Fixed! It turned out I had accidentally made 2 directories of the demo? I have no idea how that slipped past me... Oh wait, Sleep! (about midnight here...). Have a far-out-hip-hoppeddy-disco-moon-fruit-to-the-6th-power-demo-playing time.

[opiop65]

Did you upload the new one? Because I'm still getting the same error when running it

[wessles]

Nope. Just downloaded it, and it works with flying colors. All of the resources are there, plus the .dll's, .so's, and .jlnlb(?)'s

[opiop65]

Nope, sorry it just isn't working :/ But I'll let you go now, maybe you can figure it out tomorrow!
Edit:
I took a peek into the jar file, and there is no res folder! The game is trying to access one though.

[wessles]

Then why is it running on mine? 

[opiop65]

No idea, sorry, but its not working :/ I swear, I even searched for a res folder using winzip in the jar file, but it didn't find one! Are you sure you're exporting correctly in eclipse?

[SHC]

Then why is it running on mine? 

Maybe you are having a res folder besides your jar file.

[wessles]

The duplicate...

KAAAAAAAAAAAAAAAAAAAAAAAAAAAHHHHHHNNN!

Will put in a zip with res folder.

Unless I have been an idiot not once, not twice, but 4+ times, it should work. Otherwise, well, ...

[opiop65]

Ah yes, it finally works! Wasn't much of a game, but cool enough ! That background is really trippy!

[wessles]

Well guys, after a bit of programming a MERCury re-half-re-make of Horde with this engine seems to be all of what I used out of slick2d now... Albeit less fast, more buggy, but it produces about the same workload-relief as slick2d did while I was making Horde! Granted slick2d did a LOT more than I used, but this engine works for simple games!
Milestone!

Just updated it with a few new things:
- Added Logger, because I wanted to be able to log things, like the time, and what is being initialized, etc.
- BASIC Collision in geometry
- Rotation in geometry
- Now you can change the background color of Graphics
- Camera added! 
- A universal 'SCALE' variable in Runner. Basically controls the scale of the game. Set it to 8? All of the engine goes retro. Set it to .1? You cannot play the game, it's so tiny... 

Like said, I still need someone more 'Shader-Experienced' to test out my shader capabilities. Well, not test, since I have no doubt it will be the WORST shader code ever, but just give me something to work on!

How do you like it? What else would you like to be add? Your feedback is much appreciated!

Thank You All!

-_wessles (I am debating with myself now... Should I add in a signiture?! If so, should it be superscripted?!)

[saucymeatman]

Nice update!
MERCury needed a camera, and I love the scaling, wish my engine had that!

[wessles]

No problem!
Although it might be lacking what people want...
Tell me if there is anything lacking in the camera, and I'll do my best to add it!

I love the scaling, wish my engine had that!

It is actually pretty easy:

1   2

// This works for 2d and 3d, just keep scalez at 1 for 2d. glScalef(scalex, scaley, scalez);

But beware! You must only do this once, because it just multiplies a matrix (I believe). So if you keep on scaling every update frame, it will be REALLY small!

[HeroesGraveDev]

1   2

// This works for 2d and 3d, just keep scalez at 1 for 2d. glScalef(scalex, scaley, scalez);

But beware! You must only do this once, because it just multiplies a matrix (I believe). So if you keep on scaling every update frame, it will be REALLY small!

That's what we have

glLoadIdentity()

for.

Also: ALL matrix operations (except obviously resetting/replacing the matrix etc.) multiply the matrix. That's how matrices work.

[wessles]

Thanks! Will research!