move habit macro into level-2

2 files changed, 32 insertions, 0 deletions

diff --git a/starts/meaning-vm/level-2/level-2.hpp b/starts/meaning-vm/level-2/level-2.hpp
new file mode 100644
index 0000000..29ab89e
--- /dev/null
+++ b/starts/meaning-vm/level-2/level-2.hpp
@@ -0,0 +1,3 @@
+#pragma once
+
+#include "sugar.hpp"
diff --git a/starts/meaning-vm/level-2/sugar.hpp b/starts/meaning-vm/level-2/sugar.hpp
new file mode 100644
index 0000000..2fa9414
--- /dev/null
+++ b/starts/meaning-vm/level-2/sugar.hpp
@@ -0,0 +1,29 @@
+#pragma once
+
+#include <stdlib.h> // int rand(); void srand(int seed);
+#include <time.h> // int time(0); int clock_gettime(CLOCK_REALTIME, struct timespec *tp{tv_sec,tv_nsec})
+#include <unistd.h> // usleep(unsigned int usecs)
+
+#define habitdelay \
+	static int thisdelay = (double(rand()) / RAND_MAX * 400000 + 200000); \
+	usleep(thisdelay)
+
+#undef self
+#define ahabit(name, ...) \
+	a(habit, name); \
+	(name).fun((std::function<ref(ref)>) \
+	[=](ref ctx) \
+	{ \
+		habitdelay; \
+		ref self = name; \
+		(void)self; \
+		__VA_ARGS__ \
+		return intellect::level1::concepts::nothing; \
+	});
+
+// seed random number generator statically, for habitdelay
+namespace __internal {
+static struct timespec __tp;
+static int __timeres = clock_gettime(CLOCK_REALTIME, &__tp);
+static int __seed = (srand(__tp.tv_nsec), __tp.tv_nsec);
+}