HTML5 RougeLIke

[languard]

@purestrain:  It does and doesn't.  This article does a better job explaining than I can: http://www.hunlock.com/blogs/Mastering_Javascript_Arrays#quickIDX9  The biggest problem is that the length property is 0 doing it that way, because you aren't really adding anything to the array.

[purestrain]

And the problem is you don't want to add size/count functionality? 

[siob]

*laughs* No offense taken.  It's been 10+ years since I've worked with javascript, and I never was very heavily into the language.

What you posted is an object if I understand the language correctly, not an array. 

<cut code>

  While that appears to work in JS, it doesn't really.  Not as a true array.

what do you mean - not as a "true array"? do you miss the array functions map(), forEach() or in what way is it not behaving like an array for you?

in JS, there is no difference between an array and an object. everything is a "hash" or "associative array" (except the basic types bool, number, etc).

try this in your browser or take a peek at the manual hehe

Code: [Select]

>typeof []
"object"
>typeof {}
"object"

[siob]

Arrays use the [ ] brackets for access, so it would look like this: someArray["akey"] = something.  While that appears to work in JS, it doesn't really.  Not as a true array.

ah! the brackets. you can use those for "objects" too!

var foo = {bar: 1}

can be accessed as foo['bar'] or foo.bar

[languard]

0.o  javascript is weird :p  At least for my C++/C# oriented mind    Hmm..random idea, write a book for game development using javascript...interesting, but need to learn the language better first   Wasn't aware that arrays returned as objects.  Could use typeof to generate a list of valid function names to differentiate between functions and other data types....

Be back in a bit...

[languard]

OK so that was more than a bit    Blog updated: goo.gl/eHMbU.  Short summery, I almost have the BSP dungeon algorithm complete.  Just need to connect the rooms and toss in some UI and it will be done.  Going to focus on getting this finished, then getting the player moving through the dungeon.

Question: Anyone know of a good rng for javascript?  My Google-foo is failing me on this.  I never trust the default rng's because they are almost never good, but I'd really rather not implement one myself.  Those things are really easy to screw up.

Edit:  I also need one so I can control the seed value.  Don't see a way of doing that with Math.random

[Hi]

you do indeed need to implement it yourself if you need the seed

[kipar]

I think Mersenne Twister is good enough. I haven't seen it's implemenations in JS, but the code isn't too long.

[siob]

simple random number generator for JS: https://gist.github.com/917633

enjoy

ps.: I recently found this good & fast perlin noise generator, might fit you: https://gist.github.com/304522

[languard]

simple random number generator for JS: https://gist.github.com/917633

enjoy

ps.: I recently found this good & fast perlin noise generator, might fit you: https://gist.github.com/304522

*looks at siob funny* you do realize that 'rng' has a period of 8 numbers, right?

In all seriousness, I do thank you for try to help.  Problem is that it almost a guarantee that a home-brew rng like that is going to fail and fail hard.  Even Math.random() fails hard if you run it through the ENT test: http://www.fourmilab.ch/random/

@kipar: It is looking like I'll have to implement mersenne twister.  Need to post my implementation someplace, I'm still have trouble comprehending that one doesn't already exist 

[languard]

I knew I couldn't be the only person wanting this.  https://gist.github.com/300494  Mersenner Twist in javascript

[siob]

simple random number generator for JS: https://gist.github.com/917633

enjoy

ps.: I recently found this good & fast perlin noise generator, might fit you: https://gist.github.com/304522

*looks at siob funny* you do realize that 'rng' has a period of 8 numbers, right?

In all seriousness, I do thank you for try to help.  Problem is that it almost a guarantee that a home-brew rng like that is going to fail and fail hard.  Even Math.random() fails hard if you run it through the ENT test: http://www.fourmilab.ch/random/

lol okay, i forgot rogue programmers are serious about this kind of stuff. at least the perlin noise lib i mentioned is more decent.

[languard]

BSP Dungeon Algorithm Implemented.  ABOUT F***ING TIME!!1!!11!  716 lines of code in the main bsp.js file.

My word but that was a Trial by Fire introduction to the JavaScript language.  I'll work on a blog post about the process, but for now if you wish to see it: goo.gl/VCr9H  The yellow lines are the rooms.  The options don't really work at them moment, so touch them at your own risk.

[languard]

Blog updated.  Once I get Firebug, and once I stopped fighting the dynamic nature of javascript, things went a lot smoother for me.

Now to convert the generated dungeons into playable format.  Each pixel of the current display will represent one tile in the game of course.  As I plan on using 16x16 tiles, this represents a very large play area as I have it configured.

[ondras]

First has anyone done one yet?  Currently revving up one myself to A)Get experience programming a RL before inflicting them on my students B)To learn the CANVAS tag and HTML and it's always good to see what else has been done before.

http://ondras.zarovi.cz/js-like/