--- /dev/null
+
+#ifndef QTYPES_H
+#define QTYPES_H
+
+typedef unsigned char qbyte;
+
+#undef true
+#undef false
+
+typedef enum {false, true} qboolean;
+
+#ifndef NULL
+#define NULL ((void *)0)
+#endif
+
+#ifndef FALSE
+#define FALSE 0
+#define TRUE 1
+#endif
+
+//define PARANOID // speed sapping error checking
+#ifdef _DEBUG
+#define ASSERT(condition) if (!(condition)) Sys_Error("assertion (##condition) failed at " __FILE__ ":" __LINE__ "\n");
+#else
+#define ASSERT(condition)
+#endif
+
+// up / down
+#define PITCH 0
+
+// left / right
+#define YAW 1
+
+// fall over
+#define ROLL 2
+
+#endif