Project structure update

src/maths/voxmaths.h

@@ -0,0 +1,43 @@
+#ifndef SRC_VOXNATHS_H_
+#define SRC_VOXNATHS_H_
+
+#include "../typedefs.h"
+
+inline int floordiv(int a, int b) {
+	if (a < 0 && a % b) {
+		return (a / b) - 1;
+	}
+	return a / b;
+}
+
+inline int ceildiv(int a, int b) {
+	if (a > 0 && a % b) {
+		return a / b + 1;
+	}
+	return a / b;
+}
+
+inline int max(int a, int b) {
+	return (a > b) ? a : b;
+}
+
+inline int min(int a, int b) {
+	return (a < b) ? a : b;
+}
+
+static unsigned int g_seed;
+
+inline void fast_srand(int seed) {
+	g_seed = seed;
+}
+
+inline int fast_rand(void) {
+	g_seed = (214013 * g_seed + 2531011);
+	return (g_seed >> 16) & 0x7FFF;
+}
+
+inline light_t light_pack(ubyte r, ubyte g, ubyte b, ubyte s) {
+	return r | (g << 4) | (b << 8) | (s << 12);
+}
+
+#endif // SRC_VOXNATHS_H_