cleanup build. add demo project. add timing features to sync. switch to more std::string and std::vector usage over custom, hacky Array template

inc/util.hpp

@@ -2,30 +2,18 @@
 
 #include <stdio.h>
 #include <cstdlib>
+#include <string>
+#include <fstream>
+#include <sstream>
 #include <glm/ext/matrix_float4x4.hpp>
 #include <glm/ext/quaternion_float.hpp>
 #include <glm/ext/vector_float4.hpp>
 
 typedef unsigned int uint;
 
-template<class T> struct Array {
-    T* data;
-    size_t len;
-    size_t cap;
-    inline T& operator[](int i) { return data[i]; }
-};
-
-template<class T> void append(Array<T>& a, T el);
-template<class T> T pop(Array<T>& a);
-template<class T> void resize(Array<T>& a, size_t new_cap);
-template<class T> void clear(Array<T>& a);
-bool read_file(Array<char>* out, const char* filepath);
-Array<char*> split_str(const char* s, char delimiter);
-Array<char*> split_str(const char* s);
-
+bool read_file(std::string* s, const char* filepath);
+std::vector<std::string> split_str(std::string s, char delim);
 glm::mat4 quat_to_mat4(glm::quat q);
-
+float randf();
 template<class T> T lerp(T start, T end, float t) { return t * end + (1 - t) * start; }
-template<class T> float ilerp(T start, T end, T pos) { return (pos - start) / (end - start); }
-
-float randf(); // returns a float between 0 and 1
+template<class T> float ilerp(T start, T end, T pos) { return (pos - start) / (end - start); }