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+backup
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diff --git a/examples.hipnc b/examples.hipnc
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diff --git a/vex/include/myLib.h b/vex/include/myLib.h
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+// those two lines and #endif at the bottom will prevent multiple including of this header
+#ifndef _myLib_
+#define _myLib_
+
+
+
+// you can define constants and use them in your code
+#define MY_INT			123
+#define MY_FLOAT		3.1415926
+
+// you can also create alias to the function
+#define RENAMEDPOWER	pow
+
+// or use macros for defining new functions
+#define ADDTEN(val)	 	val+10
+
+
+
+// void functions do not return anything
+// "function" word is not required
+function void myRemPoints(int ptnum) {
+	if (ptnum > 30)
+    	removepoint(0, ptnum);
+}
+
+// function parameters are passed by reference automatically, without additional syntax
+// (function can modify value of original variable, not its copy)
+void scaleByTen(vector P) {
+	P *= 10;
+}
+
+// you can prevent changing input variable references
+void changeA(int a; const int b; int c) {
+	a += 10;
+	//b += 10; // uncommenting this line will result in error
+	c = a;
+	c += 4; // even though arguments are passed as references, they are not true references, c is still independent from a
+}
+
+// testing escaping of special characters
+// here it requires two backslashes :D I am wondering about a legendary place where it needs only one :)
+void printTestEscaping() {
+	string a = "from myLib.h: \\n \\t v\@P, %04.2f";
+	printf(a + "\n");
+}
+
+// a function returning float value
+float superRandom(vector4 seeds) {
+	float out = rand(seeds.x * seeds.y * seeds.z * seeds.w);
+	return out;
+}
+
+// a function returnig an array
+int[] range(int max) {
+	int out[];
+
+	for(int i=0; i<max; i++) push(out, i);
+
+	return out;
+}
+
+// normalize Normal vector by amount [0..1] with specified seed value
+vector randomizeN(vector N; float amount, seed) {
+	vector randDir;
+	
+	// getting different random value for each axis, scaling to [-1..1] range
+	randDir.x = rand(seed * 684.49848) * 2 - 1;
+	randDir.y = rand(seed * 178.46548) * 2 - 1;
+	randDir.z = rand(seed * 489.49856) * 2 - 1;
+	
+	randDir = normalize(randDir);
+
+	N = lerp(N, randDir, amount);
+	N = normalize(N);
+
+	return N;
+}
+
+// function has different set of arguments, but the same name
+vector randomizeN(vector N; float amount; vector4 seed) {
+	vector randDir;
+	
+	// getting different random value for each axis, scaling to [-1..1] range
+	randDir.x = rand(seed.x * 684.49848 * seed.w) * 2 - 1;
+	randDir.y = rand(seed.y * 178.46548 * seed.w) * 2 - 1;
+	randDir.z = rand(seed.z * 489.49856 * seed.w) * 2 - 1;
+	
+	randDir = normalize(randDir);
+
+	N = lerp(N, randDir, amount);
+	N = normalize(N);
+
+	return N;
+}
+
+// this function declaration returns different type
+// the function name does not really match its functionality, its just for the example
+float randomizeN(vector N; float amount; int seed) {
+	float randDir;
+	
+	// getting different random value for each axis, scaling to [-1..1] range
+	randDir = rand((float)seed * 684.49848) * 2 - 1;
+
+	return randDir;
+}
+
+// vex also supoorts structs and methods associated with them
+struct myCustomMatrix {
+	// uninitialized variables
+	vector x, y, z;
+	
+	// variables with default values
+	vector translate = {0,0,0};
+	string comment = 'default comment';
+	float myPi = 3.14159265;
+	float uniformScale = 1.0;
+	float myArray[] = {1,2,3};
+}
+
+// struct for carrying information about our project file
+struct hipFile {
+	string base, ext;
+	int version = 1;
+
+	// you can create methods that operate on structs
+	// this method increases version by 1 and returns new version number
+	int incVersion() {
+		this.version++;
+		return this.version;
+	}
+
+	// inside a struct function, you can refer to struct fields by name as if they 
+	// were variables (for example, base is a shortcut for this.base).
+	// this method writes to console window / terminal
+	void printName() {
+		printf("this file has name: %s_%03d.%s\n", base, version, ext);
+	}
+
+	// returns a string with full file name
+	string getFullName() {
+		return sprintf("%s_%03d.%s", this.base, this.version, this.ext);
+	}
+}
+
+// we can create functions that operate on our structs and use their methods
+int compareHipFiles(hipFile A, B) {
+	int match = 0;
+	if (A->getFullName() == B->getFullName()) match = 1;
+
+	return match;
+}
+
+// func returning hipFile type
+// this function expects comma separated list of filenames and will 
+// return the first occurance of a hip file
+hipFile findFirstHipFile(string text) {
+	string inFiles[] = split(text, ",");
+	string hipParts[];
+
+	foreach(string file; inFiles) {
+		string parts[] = split(file, ".");
+		if (parts[-1] == "hip" || parts[-1] == "hipnc") {
+			hipParts = parts;
+			break;
+		}
+	}
+
+	// we can also return error state, warning() function is also available
+	if (len(hipParts) == 0) error("No houdini project found in this file list: %+s.", text);
+
+	string prefix[] = split(hipParts[0], "_");
+	int ver = atoi( prefix[-1] );
+	string base = join( prefix[:-1], "_");
+	string ext = hipParts[1];
+
+	hipFile out = hipFile(base, ext, ver);
+	return out;
+}
+
+// we can as well return an array of structs
+hipFile[] findAllHipFiles(string text) {
+	string inFiles[] = split(text, ",");
+	hipFile hips[];
+
+	foreach(string file; inFiles) {
+		string parts[] = split(file, ".");
+		if (parts[-1] == "hip" || parts[-1] == "hipnc") {
+			string prefix[] = split(parts[0], "_");
+			int ver = atoi( prefix[-1] );
+			string base = join( prefix[:-1], "_");
+			string ext = parts[1];
+
+			hipFile out = hipFile(base, ext, ver);
+			push(hips, out);
+		}
+	}
+
+	// output a warning when no Houdini projects were found
+	if (len(hips) == 0) warning("No Houdini projects found.");
+
+	return hips;
+}
+
+
+#endif
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