deepnight / deepnightLibs

The general personal libs I use in my Haxe projects.

About

The general purpose libs I use in all my Haxe projects. If you want to build one of my project, you will need them.

Install

Stable

Use this version if you plan to use the libs for your own projects.

haxelib install deepnightLibs

Latest Git version (mostly stable)

This is the version I use and update very frequently.

Pick this version if you're building one of my GitHub projects, such as LDtk or one of my gamejam entry.

haxelib git deepnightLibs https://github.com/deepnight/deepnightLibs

Usage

In your HXML file, add:

-lib deepnightLibs

All the libs are in the dn.* package.

class MyProject {
	public function new() {
		trace( dn.M.fmin(0.3,0.8) ); // 0.3
	}
}

Tips

Use global imports! To import libs in every HX files, just add a import.hx (this exact name & caps) file to the root of your src folder:

dn.*;
dn.Col as C;

• The first line imports all classes in dn package,

• The second one imports dn.Col as an alias "C",

• Feel free to add your own convenient imports there.

Noteworthy classes

dn.M

My re-implementation of the Math class, with high-performances in mind:

M.fmin(0.5, 0.9); // 0.5
M.frandRange(0, 2); // random Float number between 0 -> 2
M.randRange(0, 2); // either 0, 1 or 2
M.pow(val, 2); // turns into val*val at compilation time

dn.Col

The color management lib, with performance in mind.

A color is an abstract class that revolves around a single Integer value (the color in 0xaarrggbb format). Most methods are just operations on this internal Int value.

import dn.Col;
var c : Col = 0xff0000;  // red
var c : Col = Red;  // also red, but using and enum constant
var c : Col = "#ff0000"; // still red, but the conversion from a constant String to Int is hard-inlined using macros. Costs 0 at runtime.
var darker = c.toBlack(0.5); // return a 50% darker red
var c2 = c.to(Yellow, 0.3); // return a mix from current color with 30% of the standard yellow

dn.DecisionHelper

A nice tool to easily pick a value among many others using any custom criterion.

var arr = [ "a", "foo", "bar", "food", "hello" ];

var dh = new dn.DecisionHelper(arr);

/* Iterates all values in arr and increase their internal score by 1 if they contain the letter "o". */
dh.score( v -> StringTools.contains(v,"o") ? 1 : 0 );

/* Increase score of each values using 10% of their length (ie. longer strings get slightly higher score) */
dh.score( v -> v.length*0.1 );

/* Discard any value containing the letter "h" */
dh.remove( v -> StringTools.contains(v,"h") );

/* Only keep values with length>1 */
dh.keepOnly( v -> v.length>1 );

trace( dh.getBest() ); // -> food
/* Internal scores: a (discarded), foo (1.3), bar (0.3), food (1.4), hello (discarded). */