+
+#ifndef MENUQC
+float Mod_Q1BSP_SuperContentsFromNativeContents(float nativecontents)
+{
+ switch(nativecontents)
+ {
+ case CONTENT_EMPTY:
+ return 0;
+ case CONTENT_SOLID:
+ return DPCONTENTS_SOLID | DPCONTENTS_OPAQUE;
+ case CONTENT_WATER:
+ return DPCONTENTS_WATER;
+ case CONTENT_SLIME:
+ return DPCONTENTS_SLIME;
+ case CONTENT_LAVA:
+ return DPCONTENTS_LAVA | DPCONTENTS_NODROP;
+ case CONTENT_SKY:
+ return DPCONTENTS_SKY | DPCONTENTS_NODROP | DPCONTENTS_OPAQUE; // to match behaviour of Q3 maps, let sky count as opaque
+ }
+ return 0;
+}
+
+float Mod_Q1BSP_NativeContentsFromSuperContents(float supercontents)
+{
+ if(supercontents & (DPCONTENTS_SOLID | DPCONTENTS_BODY))
+ return CONTENT_SOLID;
+ if(supercontents & DPCONTENTS_SKY)
+ return CONTENT_SKY;
+ if(supercontents & DPCONTENTS_LAVA)
+ return CONTENT_LAVA;
+ if(supercontents & DPCONTENTS_SLIME)
+ return CONTENT_SLIME;
+ if(supercontents & DPCONTENTS_WATER)
+ return CONTENT_WATER;
+ return CONTENT_EMPTY;
+}
+#endif
+
+vector bezier_quadratic_getpoint(vector a, vector b, vector c, float t)
+{
+ return
+ (c - 2 * b + a) * (t * t) +
+ (b - a) * (2 * t) +
+ a;
+}
+
+vector bezier_quadratic_getderivative(vector a, vector b, vector c, float t)
+{
+ return
+ (c - 2 * b + a) * (2 * t) +
+ (b - a) * 2;
+}