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[fishladder.git] / vg / vg_m.h

diff --git a/vg/vg_m.h b/vg/vg_m.h
index 0c4ba358593af4927a59f6e6335906a5cf0e653c..9e70c9290ca48d859df9f9c054065c506040df23 100644 (file)
--- a/vg/vg_m.h
+++ b/vg/vg_m.h
@@ -17,6 +17,15 @@ 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))
+
+// Hopefully deprecate this!!
 static inline int vg_min( int a, int b )
 {
        return a < b? a: b;
@@ -73,6 +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];
@@ -83,6 +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
 // ==================================================================================================================