Allow configuring the upper bound of the hash function

This allows limiting the nick colors used to the 16-color terminal set
without modifying the TERM environment variable. Produces different
results from just using the default configuration in a 16-color
terminal, but what can you do?

1 files changed, 2 insertions, 1 deletions

diff --git a/chat.h b/chat.h
index b06d383..8de5d55 100644
--- a/chat.h
+++ b/chat.h
@@ -137,6 +137,7 @@ static inline uint idFor(const char *name) {
 }
 
 extern uint32_t hashInit;
+extern uint32_t hashBound;
 static inline enum Color hash(const char *str) {
 	if (*str == '~') str++;
 	uint32_t hash = hashInit;
@@ -145,7 +146,7 @@ static inline enum Color hash(const char *str) {
 		hash ^= *str;
 		hash *= 0x27220A95;
 	}
-	return Blue + hash % 74;
+	return Blue + hash % (hashBound + 1 - Blue);
 }
 
 extern struct Network {