improve all vector types by deunionifying them

include/ptk_vec.h

@@ -1,65 +1,63 @@
 #ifndef PTK_PTK_VEC_H_
 #define PTK_PTK_VEC_H_
 
-typedef union {
+typedef struct {
-    struct { // PtkVec2, PtkPos
+    float x;
-        float x;
+    float y;
-        float y;
-    };
-    struct { // PtkSize
-        float w;
-        float h;
-    };
-    struct { // PtkSize
-        float width;
-        float height;
-    };
 } PtkVec2;
 
 typedef PtkVec2 PtkPos;
-typedef PtkVec2 PtkSize;
 
 typedef union {
-    struct { // PtkVec3
+    struct {
-        float x;
+        float w;
-        float y;
+        float h;
-        float z;
     };
-    struct { // PtkColor
+    struct {
+        float width;
+        float height;
+    };
+} PtkSize;
+
+typedef struct {
+    float x;
+    float y;
+    float z;
+} PtkVec3;
+
+typedef union {
+    struct {
         float r;
         float g;
         float b;
     };
-    struct { // PtkColor
+    struct {
         float red;
         float green;
         float blue;
     };
-} PtkVec3;
+} PtkColor;
 
-typedef PtkVec3 PtkColor;
+typedef struct {
+    float x;
+    float y;
+    float z;
+    float w;
+} PtkVec4;
 
 typedef union {
-    struct { // PtkVec4
+    struct {
-        float x;
-        float y;
-        float z;
-        float w;
-    };
-    struct { // PtkColorA
         float r;
         float g;
         float b;
         float a;
     };
-    struct { // PtkColorA
+    struct {
         float red;
         float green;
         float blue;
         float alpha;
     };
-} PtkVec4;
+} PtkColorA;
-
-typedef PtkVec4 PtkColorA;
 
 #endif // PTK_PTK_VEC_H_