X-Git-Url: http://de.git.xonotic.org/?a=blobdiff_plain;ds=sidebyside;f=mathlib.h;h=d8a902d4508746c93efdd6bab94cab85f83af8f8;hb=52bda2e01c2fe584bb98477d158be3ef68dfb210;hp=52c711138a5d40a92d91ae6ebd4f5f3fd4d77a0a;hpb=636c2207a7feebbc93dacfbe1e4626df48c0269b;p=xonotic%2Fdarkplaces.git

diff --git a/mathlib.h b/mathlib.h
index 52c71113..d8a902d4 100644
--- a/mathlib.h
+++ b/mathlib.h
@@ -83,6 +83,7 @@ unsigned int CeilPowerOf2(unsigned int value);
 #define Vector2Copy(a,b) ((b)[0]=(a)[0],(b)[1]=(a)[1])
 #define Vector2Negate(a,b) ((b)[0]=-((a)[0]),(b)[1]=-((a)[1]))
 #define Vector2Set(a,b,c,d,e) ((a)[0]=(b),(a)[1]=(c))
+#define Vector2Scale(in, scale, out) ((out)[0] = (in)[0] * (scale),(out)[1] = (in)[1] * (scale))
 #define Vector2Normalize2(v,dest) {float ilength = (float) sqrt(DotProduct2((v),(v)));if (ilength) ilength = 1.0f / ilength;dest[0] = (v)[0] * ilength;dest[1] = (v)[1] * ilength;}
 
 #define DotProduct4(a,b) ((a)[0]*(b)[0]+(a)[1]*(b)[1]+(a)[2]*(b)[2]+(a)[3]*(b)[3])
@@ -92,6 +93,12 @@ unsigned int CeilPowerOf2(unsigned int value);
 #define Vector4Negate(a,b) ((b)[0]=-((a)[0]),(b)[1]=-((a)[1]),(b)[2]=-((a)[2]),(b)[3]=-((a)[3]))
 #define Vector4Set(a,b,c,d,e) ((a)[0]=(b),(a)[1]=(c),(a)[2]=(d),(a)[3]=(e))
 #define Vector4Normalize2(v,dest) {float ilength = (float) sqrt(DotProduct4((v),(v)));if (ilength) ilength = 1.0f / ilength;dest[0] = (v)[0] * ilength;dest[1] = (v)[1] * ilength;dest[2] = (v)[2] * ilength;dest[3] = (v)[3] * ilength;}
+#define Vector4Subtract(a,b,c) ((c)[0]=(a)[0]-(b)[0],(c)[1]=(a)[1]-(b)[1],(c)[2]=(a)[2]-(b)[2],(c)[3]=(a)[3]-(b)[3])
+#define Vector4Add(a,b,c) ((c)[0]=(a)[0]+(b)[0],(c)[1]=(a)[1]+(b)[1],(c)[2]=(a)[2]+(b)[2],(c)[3]=(a)[3]+(b)[3])
+#define Vector4Scale(in, scale, out) ((out)[0] = (in)[0] * (scale),(out)[1] = (in)[1] * (scale),(out)[2] = (in)[2] * (scale),(out)[3] = (in)[3] * (scale))
+#define Vector4Multiply(a,b,c) ((c)[0]=(a)[0]*(b)[0],(c)[1]=(a)[1]*(b)[1],(c)[2]=(a)[2]*(b)[2],(c)[3]=(a)[3]*(b)[3])
+#define Vector4MA(a, scale, b, c) ((c)[0] = (a)[0] + (scale) * (b)[0],(c)[1] = (a)[1] + (scale) * (b)[1],(c)[2] = (a)[2] + (scale) * (b)[2],(c)[3] = (a)[3] + (scale) * (b)[3])
+#define Vector4Lerp(v1,lerp,v2,c) ((c)[0] = (v1)[0] + (lerp) * ((v2)[0] - (v1)[0]), (c)[1] = (v1)[1] + (lerp) * ((v2)[1] - (v1)[1]), (c)[2] = (v1)[2] + (lerp) * ((v2)[2] - (v1)[2]), (c)[3] = (v1)[3] + (lerp) * ((v2)[3] - (v1)[3]))
 
 #define VectorNegate(a,b) ((b)[0]=-((a)[0]),(b)[1]=-((a)[1]),(b)[2]=-((a)[2]))
 #define VectorSet(a,b,c,d) ((a)[0]=(b),(a)[1]=(c),(a)[2]=(d))