added the readme

t2d.h

@@ -0,0 +1,44 @@
+#ifndef T2D_CLASS
+#define T2D_CLASS
+
+#include <iostream>
+#include <random>
+#include <vector>
+
+#include<glad/glad.h>
+#include<GLFW/glfw3.h>
+#include<glm/glm.hpp>
+#include<glm/gtc/matrix_transform.hpp>
+#include<glm/gtc/type_ptr.hpp>
+#include "Structures.h"
+
+class t2d_package {
+
+public:
+
+    glm::vec4 position;
+
+    glm::vec4 size;
+    glm::vec2 center = { 0.0f,0.0f };
+    glm::vec2 pixelposition;
+    glm::vec2 pixelsize;
+    glm::vec2 NormalizedCenterPos;
+    glm::vec2 NormalizedCenterScale;
+
+    void Recalculate() {
+        //WRITE SETTING FUNCTIONS THAT CALL THIS INSTEAD OF CALLING EVERY FRAME
+        float fheight = (float)window->height;
+        float fwidth = (float)window->width;
+
+        pixelsize = {size.z + size.x * fwidth, size.w + size.y * fheight };
+        pixelposition = { position.z + position.x * fwidth - center.x * pixelsize.x, position.w + position.y * fheight - center.y * pixelsize.y};
+
+        NormalizedCenterPos = { 2.0f * (pixelposition.x+ pixelsize.x/2.0f) / fwidth - 1.0f,2.0f * (pixelposition.y + pixelsize.y / 2.0f) / fheight - 1.0f };
+        NormalizedCenterScale = {pixelsize.x/ fwidth,pixelsize.y/ fheight};
+    }
+
+
+private:
+};
+
+#endif