vmulf is now a Vector*Vector multiplication, Vector*float is now vmulff

src/vmath.h

@@ -2,6 +2,15 @@
 #define _fencer_vmath_h
 
 #include <math.h>
+
+#if VMATH_SDL == 1
+
+#include <SDL2/SDL_rect.h>
+typedef SDL_FPoint Vector;
+typedef SDL_Point IVector;
+
+#else
+
 typedef struct Vector {
     float x;
     float y;
@@ -12,6 +21,8 @@ typedef struct IVector {
     int y;
 } IVector;
 
+#endif
+
 // Vector Constant Macros
 #define ZeroVector (Vector){0.0f, 0.0f}
 #define InfinityVector (Vector){INFINITY, INFINITY}
@@ -43,10 +54,14 @@ Vector vsubf(Vector a, Vector b) {
     return (Vector){a.x - b.x, a.y - b.y};
 }
 static inline
-Vector vmulf(Vector a, float b) {
+Vector vmulff(Vector a, float b) {
     return (Vector){a.x * b, a.y * b};
 }
 static inline
+Vector vmulf(Vector a, Vector b) {
+    return (Vector) {a.x * b.x, a.y * b.y};
+}
+static inline
 Vector vinvf(Vector a) {
     return (Vector){-a.x, -a.y};
 }
@@ -64,7 +79,7 @@ float vsqrmagnitudef(Vector a) {
 }
 static inline
 Vector vnormalizedf(Vector a) {
-    return vmulf(a, 1.0/vmagnitudef(a));
+    return vmulff(a, 1.0/vmagnitudef(a));
 }
 static inline
 float vdotf(Vector a, Vector b) {
@@ -78,5 +93,29 @@ static inline
 float vsqrdistf(Vector a, Vector b) {
     return vsqrmagnitudef(vsubf(a, b));
 }
+static inline
+Vector vreciprocalf(Vector a) {
+    return (Vector){1.0/a.x, 1.0/a.y};
+}
+static inline
+Vector vrotatef(Vector a, float t) {
+    return (Vector){
+        cosf(t) * a.x - sinf(t) * a.y,
+        sinf(t) * a.x + cosf(t) * a.y
+    };
+}
+
+static inline
+IVector vaddi(IVector a, IVector b) {
+    return (IVector){a.x + b.x, a.y + b.y};
+}
+static inline
+IVector vsubi(IVector a, IVector b) {
+    return (IVector){a.x - b.x, a.y - b.y};
+}
+static inline
+IVector vmuli(IVector a, IVector b) {
+    return (IVector){a.x * b.x, a.y * b.y};
+}
 
 #endif // !_fencer_vmath_h