X-Git-Url: https://harrygodden.com/git/?a=blobdiff_plain;f=vg%2Fvg_m.h;h=a567092e79b130fa83dfe2234ead19aa95ad4d78;hb=c87000a5e48d2cf3afdf308189767951eb819c09;hp=9e70c9290ca48d859df9f9c054065c506040df23;hpb=7838efe822ca9336a69936004dd6d9bed70910fb;p=fishladder.git

diff --git a/vg/vg_m.h b/vg/vg_m.h
index 9e70c92..a567092 100644
--- a/vg/vg_m.h
+++ b/vg/vg_m.h
@@ -50,6 +50,26 @@ static inline void v2_copy( v2f a, v2f b )
 	b[0] = a[0]; b[1] = a[1];
 }
 
+static inline void v2i_copy( v2i a, v2i b )
+{
+	b[0] = a[0]; b[1] = a[1];
+}
+
+static inline int v2i_eq( v2i a, v2i b )
+{
+	return ((a[0] == b[0]) && (a[1] == b[1]));
+}
+
+static inline void v2i_add( v2i a, v2i b, v2i d )
+{
+	d[0] = a[0]+b[0]; d[1] = a[1]+b[1];
+}
+
+static inline void v2i_sub( v2i a, v2i b, v2i d )
+{
+	d[0] = a[0]-b[0]; d[1] = a[1]-b[1];
+}
+
 static inline void v2_minv( v2f a, v2f b, v2f dest ) 
 {
 	dest[0] = vg_minf(a[0], b[0]);
@@ -125,6 +145,12 @@ static inline float v2_dist( v2f a, v2f b )
 	return sqrtf( v2_dist2( a, b ) );
 }
 
+static inline void v2_lerp( v2f a, v2f b, float t, v2f d )
+{
+	d[0] = a[0] + t*(b[0]-a[0]);
+	d[1] = a[1] + t*(b[1]-a[1]);
+}
+
 // Vector 3
 // ==================================================================================================================
 
@@ -212,7 +238,7 @@ static inline void v3_normalize( v3f a )
 	v3_muls( a, 1.f / v3_length( a ), a );
 }
 
-static inline float csr_lerpf( float a, float b, float t )
+static inline float vg_lerpf( float a, float b, float t )
 {
 	return a + t*(b-a);
 }