X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=vg%2Fvg_m.h;h=9e70c9290ca48d859df9f9c054065c506040df23;hb=18aa936b41a102700b6fc9fc9f0ac49712a0fced;hp=cb98db2d1a5a64f060a5c150b9bdc9d663a6b3d3;hpb=026b67150e9bd238709a6aeab656f7d01f3765a8;p=fishladder.git

diff --git a/vg/vg_m.h b/vg/vg_m.h
index cb98db2..9e70c92 100644
--- a/vg/vg_m.h
+++ b/vg/vg_m.h
@@ -17,6 +17,11 @@ static inline float vg_maxf( float a, float b )
 	return a > b? a: b;
 }
 
+static inline float vg_clampf( float a, float min, float max )
+{
+	return vg_minf( max, vg_maxf( a, min ) );
+}
+
 #define VG_MIN( A, B ) ((A)<(B)?(A):(B))
 #define VG_MAX( A, B ) ((A)>(B)?(A):(B))
 
@@ -77,6 +82,12 @@ static inline void v2_muls( v2f a, float s, v2f d )
 	d[0] = a[0]*s; d[1] = a[1]*s;
 }
 
+static inline void v2_divs( v2f a, float s, v2f d )
+{
+	d[0] = a[0]/s; d[1] = a[1]/s;
+}
+
+
 static inline void v2_mul( v2f a, v2f b, v2f d )
 {
 	d[0] = a[0]*b[0]; d[1] = a[1]*b[1];
@@ -87,6 +98,33 @@ static inline void v2_div( v2f a, v2f b, v2f d )
 	d[0] = a[0]/b[0]; d[1] = a[1]/b[1];
 }
 
+static inline void v2_muladds( v2f a, v2f b, float s, v2f d )
+{
+	d[0] = a[0]+b[0]*s; d[1] = a[1]+b[1]*s;
+}
+
+static inline float v2_length2( v2f a )
+{
+	return a[0]*a[0] + a[1]*a[1];
+}
+
+static inline float v2_length( v2f a )
+{
+	return sqrtf( v2_length2( a ) );
+}
+
+static inline float v2_dist2( v2f a, v2f b )
+{
+	v2f delta;
+	v2_sub( a, b, delta );
+	return v2_length2( delta );
+}
+
+static inline float v2_dist( v2f a, v2f b )
+{
+	return sqrtf( v2_dist2( a, b ) );
+}
+
 // Vector 3
 // ==================================================================================================================