big refactor: i see i need header files

src/engineGui.c

@@ -0,0 +1,23 @@
+#define RAYGUI_IMPLEMENTATION
+
+#include "engine.h"
+
+Button initButton(char *text, Vector2 dimensions, Vector2 position)
+{
+	Button b;
+
+    b.rec = (Rectangle){position.x - dimensions.x / 2, position.y - dimensions.y / 2, dimensions.x, dimensions.y};
+    b.text = text;
+	return b;
+}
+
+int isButtonClicked(Button *b)
+{
+    return (CheckCollisionPointRec(GetMousePosition(), b->rec) && IsMouseButtonPressed(MOUSE_LEFT_BUTTON));
+}
+
+void renderButton(Button *b)
+{
+    GuiButton(b->rec, b->text);
+}
+