improved Pos3 with math functions

src/lib/Pos3.hx

@@ -3,18 +3,18 @@ package lib;
 import lib.Vec.Vec3;
 
 /**
-	Reporesents a Point in a 3D `Int` System.
-	Basicly a wrapper for Vec3<Int> with some extra functions.
+	Reporesents a Point in a 3D `Float` System.
+	Basicly a wrapper for Vec3<Float> with some extra functions.
 	`Y` represents the height of the point.
 **/
 @:forward(x,y,z)
-abstract Pos3(Vec3<Int>) from Vec3<Int> to Vec3<Int>{
-	inline public function new(i:Vec3<Int>) {
+abstract Pos3(Vec3<Float>) from Vec3<Float> to Vec3<Float>{
+	inline public function new(i:Vec3<Float>) {
 		this = i;
 	}
 
 	@:op(A + B)
-	public function add(rhs: Vec3<Int>):Pos3 {
+	public function add(rhs: Vec3<Float>):Pos3 {
 		return new Pos3({
 			y: this.y + rhs.y,
 			x: this.x + rhs.x,
@@ -23,7 +23,7 @@ abstract Pos3(Vec3<Int>) from Vec3<Int> to Vec3<Int>{
 	}
 
 	@:op(A - B)
-	public function sub(rhs: Vec3<Int>):Pos3 {
+	public function sub(rhs: Vec3<Float>):Pos3 {
 		return new Pos3({
 			y: this.y - rhs.y,
 			x: this.x - rhs.x,
@@ -32,11 +32,20 @@ abstract Pos3(Vec3<Int>) from Vec3<Int> to Vec3<Int>{
 	}
 
 	@:op(A * B)
-	public function multiply(rhs: Vec3<Int>): Pos3 {
+	public function multiplyScalar(rhs: Float): Pos3 {
 		return new Pos3({
-			y: this.y * rhs.y,
-			x: this.x * rhs.x,
-			z: this.z * rhs.z
+			y: this.y * rhs,
+			x: this.x * rhs,
+			z: this.z * rhs
+		});
+	}
+
+	@:op(A / B)
+	public function divideScalar(rhs: Float): Pos3 {
+		return new Pos3({
+			y: this.y / rhs,
+			x: this.x / rhs,
+			z: this.z / rhs
 		});
 	}
 
@@ -48,4 +57,43 @@ abstract Pos3(Vec3<Int>) from Vec3<Int> to Vec3<Int>{
 			z: -this.z
 		});
 	}
+
+	public function dot(rhs: Vec3<Float>): Float {
+		return this.x * rhs.x + this.y * rhs.y + this.z * rhs.z;
+	}
+
+	public function cross(rhs: Vec3<Float>):Pos3 {
+		return new Pos3({
+			x: this.y * rhs.z - this.z * rhs.y,
+			y: this.z * rhs.x - this.x * rhs.z,
+			z: this.x * rhs.y - this.y * rhs.x
+		});
+	}
+
+	public function normalize():Pos3 {
+		var l = length();
+		return multiplyScalar(1 / l);
+	}
+
+	public function length():Float {
+		return Math.sqrt(this.x * this.x + this.y * this.y + this.z * this.z);
+	}
+
+	@:op(A == B)
+	public function equals(rhs:Pos3):Bool {
+		return close(rhs);
+	}
+
+	@:op(A != B)
+	public function notEquals(rhs:Pos3):Bool {
+		return !close(rhs);
+	}
+
+	public function close(rhs:Pos3, epsilon:Float = 0.001):Bool {
+		return Math.abs(this.x - rhs.x) < epsilon && Math.abs(this.y - rhs.y) < epsilon && Math.abs(this.z - rhs.z) < epsilon;
+	}
+
+	public function toString():String {
+		return 'Pos3(${this.x}, ${this.y}, ${this.z})';
+	}
 }